Sample records for refuse bank slurry

  1. Coal-oil slurry preparation

    DOE Patents [OSTI]

    Tao, John C. (Perkiomenville, PA)

    1983-01-01T23:59:59.000Z

    A pumpable slurry of pulverized coal in a coal-derived hydrocarbon oil carrier which slurry is useful as a low-ash, low-sulfur clean fuel, is produced from a high sulfur-containing coal. The initial pulverized coal is separated by gravity differentiation into (1) a high density refuse fraction containing the major portion of non-coal mineral products and sulfur, (2) a lowest density fraction of low sulfur content and (3) a middlings fraction of intermediate sulfur and ash content. The refuse fraction (1) is gasified by partial combustion producing a crude gas product from which a hydrogen stream is separated for use in hydrogenative liquefaction of the middlings fraction (3). The lowest density fraction (2) is mixed with the liquefied coal product to provide the desired fuel slurry. Preferably there is also separately recovered from the coal liquefaction LPG and pipeline gas.

  2. Lapping slurry

    DOE Patents [OSTI]

    Simandl, R.F.; Upchurch, V.S.; Leitten, M.E.

    1999-01-05T23:59:59.000Z

    Improved lapping slurries provide for easier and more thorough cleaning of alumina work pieces, as well as inhibit corrosion of the lapping table and provide for easier cleaning of the lapping equipment. The unthickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, and triethanolamine. The thickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, triethanolamine, a water soluble silicate, and acid. 1 fig.

  3. Lapping slurry

    DOE Patents [OSTI]

    Simandl, Ronald F. (Farragut, TN); Upchurch, Victor S. (Powell, TN); Leitten, Michael E. (Frederick, MD)

    1999-01-01T23:59:59.000Z

    Improved lapping slurries provide for easier and more thorough cleaning of alumina workpieces, as well as inhibit corrosion of the lapping table and provide for easier cleaning of the lapping equipment. The unthickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, and triethanolamine. The thickened lapping slurry comprises abrasive grains such as diamond abrasive dispersed in a carrier comprising water, glycerine, triethanolamine, a water soluble silicate, and acid.

  4. Aqueous coal slurry

    DOE Patents [OSTI]

    Berggren, Mark H.; Smit, Francis J.; Swanson, Wilbur W.

    1993-04-06T23:59:59.000Z

    An aqueous slurry containing coal and dextrin as a dispersant. The slurry, in addition to containing dextrin, may contain a conventional dispersant or, alternatively, a pH controlling reagent.

  5. Aqueous coal slurry

    DOE Patents [OSTI]

    Berggren, Mark H. (Golden, CO); Smit, Francis J. (Arvada, CO); Swanson, Wilbur W. (Golden, CO)

    1993-01-01T23:59:59.000Z

    An aqueous slurry containing coal and dextrin as a dispersant. The slurry, in addition to containing dextrin, may contain a conventional dispersant or, alternatively, a pH controlling reagent.

  6. Ultrasound Analysis of Slurries

    DOE Patents [OSTI]

    Soong, Yee and Blackwell, Arthur G.

    2005-11-01T23:59:59.000Z

    An autoclave reactor allows for the ultrasonic analysis of slurry concentration and particle size distribution at elevated temperatures and pressures while maintaining the temperature- and pressure-sensitive ultrasonic transducers under ambient conditions. The reactor vessel is a hollow stainless steel cylinder containing the slurry which includes a stirrer and a N, gas source for directing gas bubbles through the slurry. Input and output transducers are connected to opposed lateral portions of the hollow cylinder for respectively directing sound waves through the slurry and receiving these sound waves after transmission through the slurry, where changes in sound wave velocity and amplitude can be used to measure slurry parameters. Ultrasonic adapters connect the transducers to the reactor vessel in a sealed manner and isolate the transducers from the hostile conditions within the vessel without ultrasonic signal distortion or losses.

  7. Ultrasound Analysis Of Slurries

    DOE Patents [OSTI]

    Soong, Yee (Monroeville, PA); Blackwell, Arthur G. (Duquesne, PA)

    2005-11-01T23:59:59.000Z

    An autoclave reactor allows for the ultrasonic analysis of slurry concentration and particle size distribution at elevated temperatures and pressures while maintaining the temperature- and pressure-sensitive ultrasonic transducers under ambient conditions. The reactor vessel is a hollow stainless steel cylinder containing the slurry which includes a stirrer and a N.sub.2 gas source for directing gas bubbles through the slurry. Input and output transducers are connected to opposed lateral portions of the hollow cylinder for respectively directing sound waves through the slurry and receiving these sound waves after transmission through the slurry, where changes in sound wave velocity and amplitude can be used to measure slurry parameters. Ultrasonic adapters connect the transducers to the reactor vessel in a sealed manner and isolate the transducers from the hostile conditions within the vessel without ultrasonic signal distortion or losses.

  8. Binder enhanced refuse derived fuel

    DOE Patents [OSTI]

    Daugherty, Kenneth E. (Lewisville, TX); Venables, Barney J. (Denton, TX); Ohlsson, Oscar O. (Naperville, IL)

    1996-01-01T23:59:59.000Z

    A refuse derived fuel (RDF) pellet having about 11% or more particulate calcium hydroxide which is utilized in a combustionable mixture. The pellets are used in a particulate fuel bring a mixture of 10% or more, on a heat equivalent basis, of the RDF pellet which contains calcium hydroxide as a binder, with 50% or more, on a heat equivalent basis, of a sulphur containing coal. Combustion of the mixture is effective to produce an effluent gas from the combustion zone having a reduced SO.sub.2 and polycyclic aromatic hydrocarbon content of effluent gas from similar combustion materials not containing the calcium hydroxide.

  9. Streamline coal slurry letdown valve

    DOE Patents [OSTI]

    Platt, Robert J. (Dover, NJ); Shadbolt, Edward A. (Basking Ridge, NJ)

    1983-01-01T23:59:59.000Z

    A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces.

  10. Streamline coal slurry letdown valve

    SciTech Connect (OSTI)

    Platt, R.J.; Shadbolt, E.A.

    1983-11-08T23:59:59.000Z

    A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces. 5 figs.

  11. EXPERIMENTAL MEASUREMENT OF ACCELERATED EROSION IN A SLURRY POT TESTER

    E-Print Network [OSTI]

    Tsai, W.

    2012-01-01T23:59:59.000Z

    Control Achieved on Coal Slurry Pipeline," Materialserosion of aqueous coal slurries, indicating the importancethree materials tested in coal slurries is due to a fluid

  12. Medical ice slurry production device

    DOE Patents [OSTI]

    Kasza, Kenneth E. (Palos Park, IL); Oras, John (Des Plaines, IL); Son, HyunJin (Naperville, IL)

    2008-06-24T23:59:59.000Z

    The present invention relates to an apparatus for producing sterile ice slurries for medical cooling applications. The apparatus is capable of producing highly loaded slurries suitable for delivery to targeted internal organs of a patient, such as the brain, heart, lungs, stomach, kidneys, pancreas, and others, through medical size diameter tubing. The ice slurry production apparatus includes a slurry production reservoir adapted to contain a volume of a saline solution. A flexible membrane crystallization surface is provided within the slurry production reservoir. The crystallization surface is chilled to a temperature below a freezing point of the saline solution within the reservoir such that ice particles form on the crystallization surface. A deflector in the form of a reciprocating member is provided for periodically distorting the crystallization surface and dislodging the ice particles which form on the crystallization surface. Using reservoir mixing the slurry is conditioned for easy pumping directly out of the production reservoir via medical tubing or delivery through other means such as squeeze bottles, squeeze bags, hypodermic syringes, manual hand delivery, and the like.

  13. Coal slurry fuel supply and purge system

    DOE Patents [OSTI]

    McDowell, Robert E. (Fairview, PA); Basic, Steven L. (Hornell, NY); Smith, Russel M. (North East, PA)

    1994-01-01T23:59:59.000Z

    A coal slurry fuel supply and purge system for a locomotive engines is disclosed which includes a slurry recirculation path, a stand-by path for circulating slurry during idle or states of the engine when slurry fuel in not required by the engine, and an engine header fluid path connected to the stand-by path, for supplying and purging slurry fuel to and from fuel injectors. A controller controls the actuation of valves to facilitate supply and purge of slurry to and from the fuel injectors. A method for supplying and purging coal slurry in a compression ignition engine is disclosed which includes controlling fluid flow devices and valves in a plurality of fluid paths to facilitate continuous slurry recirculation and supply and purge of or slurry based on the operating state of the engine.

  14. Optimal Power Train Design of a Hybrid Refuse Collector Vehicle

    E-Print Network [OSTI]

    Paderborn, Universität

    Optimal Power Train Design of a Hybrid Refuse Collector Vehicle Tobias Knoke, Joachim Böcker 5251 60 2212 Abstract-- Due to the stop-and-go drive cycle of refuse collector vehicles, hybrid power), optimization, refuse collector vehicle I. INTRODUCTION Today, hybrid electric vehicles are accepted as a step

  15. Supersonic coal water slurry fuel atomizer

    DOE Patents [OSTI]

    Becker, Frederick E. (Reading, MA); Smolensky, Leo A. (Concord, MA); Balsavich, John (Foxborough, MA)

    1991-01-01T23:59:59.000Z

    A supersonic coal water slurry atomizer utilizing supersonic gas velocities to atomize coal water slurry is provided wherein atomization occurs externally of the atomizer. The atomizer has a central tube defining a coal water slurry passageway surrounded by an annular sleeve defining an annular passageway for gas. A converging/diverging section is provided for accelerating gas in the annular passageway to supersonic velocities.

  16. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vehicle Technologies Program Review Presentation NJ COMPRESSED NATURAL GAS REFUSE TRUCKS, SHUTTLE BUSES AND INFRASTRUCTURE Chuck Feinberg, Principal Investigator New Jersey Clean...

  17. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

    Broader source: Energy.gov (indexed) [DOE]

    Documents & Publications CX-005345: Categorical Exclusion Determination NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure Business Case for Compressed...

  18. Coal slurries: An environmental bonus

    SciTech Connect (OSTI)

    Basta, N.; Moore, S.; Ondrey, G.

    1994-05-01T23:59:59.000Z

    Developers and promoters of coal-water slurries and similar CWF (coal-water fuel) technologies have had a hard time winning converts since they unveiled their first commercial processes in the 1970s. The economic appeal of such processes, marginal at best, varies with the price of oil. Nevertheless, the technology is percolating, as geopolitics and environmental pressures drive new processes. Such fuels are becoming increasingly important to coal-rich, oil-poor nations such as China, as they attempt to build an onshore fuel supply. Meanwhile, improvements are changing the way coal-fired processes are viewed. Where air pollution regulations once discouraged the use of coal fuels, new coal processes have been developed that cut nitrous oxides (NOx) emissions and provide a use for coal fines, previously viewed as waste. The latest developments in the field were all on display at the 19th International Technical Conference on Coal Utilization and Fuel Systems, held in Clearwater, Fla., on March 21--24. At this annual meeting, sponsored by the Coal and Slurry Technology Association, (Washington, D.C.) and the Pittsburgh Energy Technology Center of the US Dept. of Energy (PETC), some 200 visitors from around the work gathered to discuss the latest developments in coal slurry utilization--new and improved processes, and onstream plants. This paper presents highlights from the conference.

  19. Coal-CO[subscript 2] Slurry Feed for Pressurized Gasifiers: Slurry Preparation System Characterization and Economics

    E-Print Network [OSTI]

    Botero, Cristina

    Gasification-based plants with coal-CO[subscript 2] slurry feed are predicted to be more efficient than those with coal-water slurry feed. This is particularly true for high moisture, low rank coal such as lignite. ...

  20. Method of extracting coal from a coal refuse pile

    DOE Patents [OSTI]

    Yavorsky, Paul M. (Monongahela, PA)

    1991-01-01T23:59:59.000Z

    A method of extracting coal from a coal refuse pile comprises soaking the coal refuse pile with an aqueous alkali solution and distributing an oxygen-containing gas throughout the coal refuse pile for a time period sufficient to effect oxidation of coal contained in the coal refuse pile. The method further comprises leaching the coal refuse pile with an aqueous alkali solution to solubilize and extract the oxidized coal as alkali salts of humic acids and collecting the resulting solution containing the alkali salts of humic acids. Calcium hydroxide may be added to the solution of alkali salts of humic acid to form precipitated humates useable as a low-ash, low-sulfur solid fuel.

  1. Single stage high pressure centrifugal slurry pump

    DOE Patents [OSTI]

    Meyer, John W. (Palo Alto, CA); Bonin, John H. (Sunnyvale, CA); Daniel, Arnold D. (Alameda, CA)

    1984-03-27T23:59:59.000Z

    Apparatus is shown for feeding a slurry to a pressurized housing. An impeller that includes radial passages is mounted in the loose fitting housing. The impeller hub is connected to a drive means and a slurry supply means which extends through the housing. Pressured gas is fed into the housing for substantially enveloping the impeller in a bubble of gas.

  2. ICP analysis of water slurries of ashes

    SciTech Connect (OSTI)

    Riley, J.T.; Renfrow, M.B.; Riley, J.M. Jr.

    1995-08-01T23:59:59.000Z

    The direct injection of solids-water slurries into the torch of an inductively coupled plasma-atomic emission spectrometer offers a rapid and easy method for the analysis of major and minor elements in various solids. In this project aqueous slurries of solids were prepared by milling with a stirred-ball slurry attritor mill and analyzed. Slurries of standard reference materials, prepared in the same manner, were used to calibrate the spectrometer. The best results were obtained with solids having a small particle size (2-5 {mu}m) and a close distribution of particle sizes. The average percent relative error for slurry-ICP analysis of most major and minor elements was generally less than 5% for the materials studied.

  3. Process for heating coal-oil slurries

    DOE Patents [OSTI]

    Braunlin, W.A.; Gorski, A.; Jaehnig, L.J.; Moskal, C.J.; Naylor, J.D.; Parimi, K.; Ward, J.V.

    1984-01-03T23:59:59.000Z

    Controlling gas to slurry volume ratio to achieve a gas holdup of about 0.4 when heating a flowing coal-oil slurry and a hydrogen containing gas stream allows operation with virtually any coal to solvent ratio and permits operation with efficient heat transfer and satisfactory pressure drops. The critical minimum gas flow rate for any given coal-oil slurry will depend on numerous factors such as coal concentration, coal particle size distribution, composition of the solvent (including recycle slurries), and type of coal. Further system efficiency can be achieved by operating with multiple heating zones to provide a high heat flux when the apparent viscosity of the gas saturated slurry is highest. Operation with gas flow rates below the critical minimum results in system instability indicated by temperature excursions in the fluid and at the tube wall, by a rapid increase and then decrease in overall pressure drop with decreasing gas flow rate, and by increased temperature differences between the temperature of the bulk fluid and the tube wall. At the temperatures and pressures used in coal liquefaction preheaters the coal-oil slurry and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in excess of 150 sec[sup [minus]1]. The gas to slurry volume ratio should also be controlled to assure that the flow regime does not shift from homogeneous flow to non-homogeneous flow. Stable operations have been observed with a maximum gas holdup as high as 0.72. 29 figs.

  4. Process for heating coal-oil slurries

    DOE Patents [OSTI]

    Braunlin, Walter A. (Spring, TX); Gorski, Alan (Lovington, NM); Jaehnig, Leo J. (New Orleans, LA); Moskal, Clifford J. (Oklahoma City, OK); Naylor, Joseph D. (Houston, TX); Parimi, Krishnia (Allison Park, PA); Ward, John V. (Arvada, CO)

    1984-01-03T23:59:59.000Z

    Controlling gas to slurry volume ratio to achieve a gas holdup of about 0.4 when heating a flowing coal-oil slurry and a hydrogen containing gas stream allows operation with virtually any coal to solvent ratio and permits operation with efficient heat transfer and satisfactory pressure drops. The critical minimum gas flow rate for any given coal-oil slurry will depend on numerous factors such as coal concentration, coal particle size distribution, composition of the solvent (including recycle slurries), and type of coal. Further system efficiency can be achieved by operating with multiple heating zones to provide a high heat flux when the apparent viscosity of the gas saturated slurry is highest. Operation with gas flow rates below the critical minimum results in system instability indicated by temperature excursions in the fluid and at the tube wall, by a rapid increase and then decrease in overall pressure drop with decreasing gas flow rate, and by increased temperature differences between the temperature of the bulk fluid and the tube wall. At the temperatures and pressures used in coal liquefaction preheaters the coal-oil slurry and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in excess of 150 sec.sup. -1. The gas to slurry volume ratio should also be controlled to assure that the flow regime does not shift from homogeneous flow to non-homogeneous flow. Stable operations have been observed with a maximum gas holdup as high as 0.72.

  5. Clean Cities Niche Market Overview: Refuse Haulers (Brochure)

    SciTech Connect (OSTI)

    Shea, S.

    2011-09-01T23:59:59.000Z

    Refuse haulers are ideal for the adoption of alternative fuels and advanced vehicle technologies. By using fuels like natural gas, propane, or biodiesel, and technologies like hybrid electric and hydraulic hybrid systems, the refuse-hauling sector could substantially decrease its petroleum use and greenhouse gas emissions. Fleet managers should explore the benefits of the fuels and technologies available, as well as the individual fleet needs, before adoption.

  6. The Development of a Hydrothermal Method for Slurry Feedstock Preparation for Gasification Technology

    E-Print Network [OSTI]

    He, Wei

    2011-01-01T23:59:59.000Z

    of Comingled Biomass and Coal Slurries with HydrothermalCo-Mingled Biomass and Coal Slurries with Different Water tocomingled biomass and coal slurry with a high carbon content

  7. Open air refuse burning video: Proton Dan the science man explores open air refuse burning

    SciTech Connect (OSTI)

    Eastburn, M.D.; Sipple, J.L.; Deramo, A.R.

    1999-07-01T23:59:59.000Z

    The goal of this video is to educate school children to the potential hazards of open air trash burning; to demonstrate alternative ways to dispose of trash; and to motivate students to take action to change the behavior of their parents with regard to trash burning. The burning of household trash, although illegal, is still a common practice in rural areas of Delaware. Enforcement has been difficult because the practice is often performed at night and is done across a wide rural area that is difficult to patrol on a continuing basis. The prohibition on trash burning (revised Regulation 13 of The Delaware Code of Regulations Governing The Control of Air Pollution) has been in effect since 1968, but the public has been slow to comply because trash burning has been practiced for many generations and because much of the public is unaware of the environmental impacts and/or the human health risks. This video may be valuable for other States to use as a public outreach tool regarding their problems with open air refuse burning. The focus of the video is a 7th grade science class is given various assignments relating to Earth Day and preservation of natural resources. Two children in particular are given the assignment to research and report on the hazards of open air trash burning and are asked to investigate alternative ways to dispose of refuse. Upon brainstorming how to find information on the topic, the kids decide to contact the host of a popular children's science show on broadcast television named Proton Dan the Science Man (a fictitious character and show based on Bill Nye the Science Guy). The host then invites the kids to the studio where he films his show and takes them through the topic. The TV host character takes the children to several external locations like a landfill, recycling centers, etc..

  8. Characterization of melter slurries vitrified by microwave

    SciTech Connect (OSTI)

    Jantzen, C.M.

    1991-04-01T23:59:59.000Z

    Liquid high-level nuclear waste will be immobilized at the Savannah River Site (SRS) by vitrification in borosilicate glass in the Defense Waste Processing Facility (DWPF). In this facility, control of the oxidation/reduction (redox) equilibrium in the glass melter is critical for processing of the nuclear waste. As part of the DWPF process control strategy, the glass redox expected in the melter will be determined by measuring the ratio of ferrous to ferric ions in vitrified slurry from the slurry mix evaporator (SME). Chemical analysis of this vitrified feed will also be used for other process control constraints which are related to glass viscosity, liquidus, and waste component solubility. In addition, the canisters of borosilicate waste glass produced in the DWPF must comply with the Waste Acceptance Preliminary Specifications (WAPS) established by the DOE Office of Civilian Radioactive Waste Management. Specification 1.1.2 requires that the elemental composition of the glass be reported. The elemental analyses will be performed on vitrified melter feed taken from the melter feed tank (MFT). Conventional vitrification of SME/MFT slurries takes 4 hours at the DWPF melt temperature of 1150{degrees}C. Microwave vitrification of melter feed slurries has been shown to significantly reduce the time required to vitrify slurry samples.

  9. Hydraulic fracturing slurry transport in horizontal pipes

    SciTech Connect (OSTI)

    Shah, S.N.; Lord, D.L. (Halliburton Services (US))

    1990-09-01T23:59:59.000Z

    Horizontal-well activity has increased throughout the industry in the past few years. To design a successful hydraulic fracturing treatment for horizontal wells, accurate information on the transport properties of slurry in horizontal pipe is required. Limited information exists that can be used to estimate critical deposition and resuspension velocities when proppants are transported in horizontal wells with non-Newtonian fracturing gels. This paper presents a study of transport properties of various hydraulic fracturing slurries in horizontal pipes. Flow data are gathered in three transparent horizontal pipes with different diameters. Linear and crosslinked fracturing gels were studied, and the effects of variables--e.g., pipe size; polymer-gelling-agent concentration; fluid rheological properties; crosslinking effects; proppant size, density, and concentrations; fluid density; and slurry pump rate--on critical deposition and resuspension velocities were investigated. Also, equations to estimate the critical deposition and resuspension velocities of fracturing gels are provided.

  10. Cancellation or Refusal of Enrolment Procedure Student Policy Group

    E-Print Network [OSTI]

    Frean, Marcus

    this procedure is regarded as an extreme measure, and shall be taken only after careful consideration and Guidelines 4.1 Use of this procedure Cancelling an enrolment or refusing to permit an eligible person to enrol under this procedure is regarded as an extreme measure, and shall be taken only after careful

  11. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, Ramkrishna G. (San Antonio, TX)

    1986-01-01T23:59:59.000Z

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine, and which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  12. Air blast type coal slurry fuel injector

    DOE Patents [OSTI]

    Phatak, R.G.

    1984-08-31T23:59:59.000Z

    A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine is disclosed which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

  13. Sedimentation in Coal-Water Slurry Pipelining Fabio Rosso

    E-Print Network [OSTI]

    Rosso, Fabio

    Sedimentation in Coal-Water Slurry Pipelining Fabio Rosso Dipartimento di Matematica `Ulisse Dini related to the pipelin- ing of a Coal-Water Slurry. The main aspects of the problem are both with experiments finding a remarkable agreement with the available data. 1 #12;1 Slurry handling and pipeline

  14. Life Cycle Assessment of Biogas from Separated slurry

    E-Print Network [OSTI]

    Life Cycle Assessment of Biogas from Separated slurry Lorie Hamelin, Marianne Wesnæs and Henrik AND ALTERNATIVES 28 2.2.1 Reference Scenario (Scenario A) 28 2.2.2 Biogas from raw pig slurry and fibre fraction from chemical- mechanical separation (Scenario F) 29 2.2.3 Biogas from raw cow slurry and fibre

  15. Coal slurry combustion and technology. Volume 2

    SciTech Connect (OSTI)

    Not Available

    1983-01-01T23:59:59.000Z

    Volume II contains papers presented at the following sessions of the Coal Slurry Combustion and Technology Symposium: (1) bench-scale testing; (2) pilot testing; (3) combustion; and (4) rheology and characterization. Thirty-three papers have been processed for inclusion in the Energy Data Base. (ATT)

  16. Abrasive slurry composition for machining boron carbide

    DOE Patents [OSTI]

    Duran, E.L.

    1984-11-29T23:59:59.000Z

    An abrasive slurry particularly suited for use in drilling or machining boron carbide consists essentially of a suspension of boron carbide and/or silicon carbide grit in a carrier solution consisting essentially of a dilute solution of alkylaryl polyether alcohol in octyl alcohol. The alkylaryl polyether alcohol functions as a wetting agent which improves the capacity of the octyl alcohol for carrying the grit in suspension, yet without substantially increasing the viscosity of the carrier solution.

  17. Abrasive slurry composition for machining boron carbide

    DOE Patents [OSTI]

    Duran, Edward L. (Santa Fe, NM)

    1985-01-01T23:59:59.000Z

    An abrasive slurry particularly suited for use in drilling or machining boron carbide consists essentially of a suspension of boron carbide and/or silicon carbide grit in a carrier solution consisting essentially of a dilute solution of alkylaryl polyether alcohol in octyl alcohol. The alkylaryl polyether alcohol functions as a wetting agent which improves the capacity of the octyl alcohol for carrying the grit in suspension, yet without substantially increasing the viscosity of the carrier solution.

  18. Production development and utilization of Zimmer Station wet FGD by-products. Final report. Volume 4, A laboratory study conducted in fulfillment of Phase 2, Objective 1 titled: Inhibition of acid production in coal refuse amended with calcium sulfite and calcium sulfate - containing FGD solids

    SciTech Connect (OSTI)

    none,

    1998-06-30T23:59:59.000Z

    Control of S02 emission from coal combustion requires desulfurization of coal before its combustion to produce coal refuse. Alternatively, gaseous emissions from coal combustion may be scrubbed to yield flue gas desulfurization (FGD) by-products that include calcium sulfite (CaSO3?0.5H2O or simply CaS03). Acid production in coal refuse due to pyrite oxidation and disposal of large amounts of FGD can cause environmental degradation. Addition of CaS03 and CaS03-containing FGD to coal refuse may reduce the amounts of oxygen and ferric ion available to oxidize pyrite because the sulfite moiety in CaS03 is a strong reductant and thus may mitigate acid production in coal refuse. In Chapter 1, it was shown that CaS03 efficiently scavenged dissolved oxygen and ferric ion in water under the conditions commonly encountered in a coal refuse disposal environment. In the presence ofCaS03, the concentration of dissolved oxygen in water exposed to the atmosphere declined to below 0.01 mg L"1 at pH <8.0. In Chapter 2, it was demonstrated that CaS03 prevented a pH drop in coal refuse slurry when 0.2 gCaS03 was added to a 2% fresh coal refuse slurry every three days. Calcium sulfite also inhibited acid leaching from fresh coal refuse in bench-scale columns under controlled conditions. During the initial 13 weeks of leaching, the total amounts of titratable acidity, soluble H\\ Fe, and Al from CaS03-treated refuse (6.4 gin 50 g fresh coal refuse) were only 26%,10%, 32%, and 39% of those of the control columns, respectively. A combination of CaS03 with CaC03 or fly ash enhanced the inhibitory effect of CaS03 on acid leaching. Calcium sulfite-containing FGD which combined CaS03, CaC03, fly ash, and gypsum showed a much stronger inhibitory effect on acid leaching than CaS03 alone. This combination effect was partially due to the positive interaction of CaS03 with CaC03 and fly ash on inhibition of acid leaching. In Chapter 3, CaS03-containing FGD was found to inhibit acid leaching from both fresh and aged coal refuse in large scale columns under simulated field conditions. During 39 weeks of leaching, the reduction of leachate acidity and Fe concentration and the increase ofleachate pH were significant (p <0.05) for the 22% FGD treatment with a linear response to increasing FGD rates (0%, 5.5%, 11%, and 22%). I conclude that CaS03 and CaS03-containing FGD have the ability to inhibit acid production in coal refuse and the inhibitory effect shown in this experiment is likely to occur under field conditions. Thus, the research results present a potential new method for mitigation of acid production in coal refuse and another beneficial utilization of FGD by-products.

  19. Coal slurry pipeline based midwest fuel hub

    SciTech Connect (OSTI)

    Huettenhain, H. [Bechtel Technology & Consulting San Francisco, CA (United States)

    1998-12-31T23:59:59.000Z

    Low sulfur Powder River Basin (PRB) coal is a sought after fuel to comply with the year 2000 emission regulation for utility boilers. PRB coal is presently not competitive East of the Mississippi mainly because of railroad switching requirements and boiler designs not compatible with the PRB fuel characteristics. The use of the Lakes for transportation is an exception. The Lakes shipping lanes however, are only open part of the year. It is proposed to construct a coal slurry pipeline from the center of Wyoming coalfields to a hub near Detroit with access to low cost waste energy from power generation stations. The coal slurry pipeline will transport up to 25 million tons per year of fine PRB coal which has been removed from the conventionally transported coal, namely coal transported by rail. The rail delivered coal will have less dust. The system fits the DOE Vision 21 concept to mine and utilize coal in highly efficient systems and with the least environmental impact. The PRB coal is of subbituminous rank and not directly compatible with the boilers in Michigan/Indiana/Ohio area, which are designed to burn bituminous coal. Upgrading of the PRB coal using the hydrothermal slurry upgrading process can transform the PRB coal into a higher Btu content fuel by removing a large portion of the inherent moisture. Such upgraded PRB coal has proven an excellent reactive fuel when burned conventionally as PC fuel, or even when burned in slurry form as Coal Water Fuel (CWF). The cost of the process can be recovered when the process is combined with a coal slurry pipeline transport system. The result is an upgraded competitive fuel or fuels, which can be used for co-firing or re-burning applications to reduce SO{sub 2} and NOx emissions of utility boilers. The fuels can be powdered for direct fuel injection into boilers or blast furnaces as well as CWF. Depending on the stability of the upgraded PRB coal, the pipeline product could also be dewatered and prepared for export. This paper describes the concept and preliminary cost information. It also reports on reactions of the industries, which could be involved in the complex system, namely, coal mining companies, railroads, pipeline operators, fuel suppliers, and utilities.

  20. Methods to enhance the characteristics of hydrothermally prepared slurry fuels

    DOE Patents [OSTI]

    Anderson, Chris M. (Shakopee, MN); Musich, Mark A. (Grand Forks, ND); Mann, Michael D. (Thompson, ND); DeWall, Raymond A. (Grand Forks, ND); Richter, John J. (Grand Forks, ND); Potas, Todd A. (Plymouth, MN); Willson, Warrack G. (Fairbanks, AK)

    2000-01-01T23:59:59.000Z

    Methods for enhancing the flow behavior and stability of hydrothermally treated slurry fuels. A mechanical high-shear dispersion and homogenization device is used to shear the slurry fuel. Other improvements include blending the carbonaceous material with a form of coal to reduce or eliminate the flocculation of the slurry, and maintaining the temperature of the hydrothermal treatment between approximately 300.degree. to 350.degree. C.

  1. Survey of state water laws affecting coal slurry pipeline development

    SciTech Connect (OSTI)

    Rogozen, M.B.

    1980-11-01T23:59:59.000Z

    This report summarizes state water laws likely to affect the development of coal slurry pipelines. It was prepared as part of a project to analyze environmental issues related to energy transportation systems. Coal slurry pipelines have been proposed as a means to expand the existing transportation system to handle the increasing coal shipments that will be required in the future. The availability of water for use in coal slurry systems in the coal-producing states is an issue of major concern.

  2. Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology...

    Open Energy Info (EERE)

    Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last...

  3. Rheological Study of Comingled Biomass and Coal Slurries with HydrothermalPretreatment

    E-Print Network [OSTI]

    He, W; Park, C S; Norbeck, J N

    2009-01-01T23:59:59.000Z

    Comingled Biomass and Coal Slurries. The effect of the (15)comingled biomass and coal slurry are improved for use as ain comingled biomass and coal slurry is shown in Figure 7.

  4. Essays on banking

    E-Print Network [OSTI]

    Erel, Isil

    2006-01-01T23:59:59.000Z

    This thesis consists of two chapters that investigate two important issues in banking of the past decade: the effect of banking consolidation on the borrowers and the regulatory capital requirements for banks. The first ...

  5. Chemical Hydride Slurry for Hydrogen Production and Storage

    SciTech Connect (OSTI)

    McClaine, Andrew W.

    2008-09-30T23:59:59.000Z

    The purpose of this project was to investigate and evaluate the attractiveness of using a magnesium chemical hydride slurry as a hydrogen storage, delivery, and production medium for automobiles. To fully evaluate the potential for magnesium hydride slurry to act as a carrier of hydrogen, potential slurry compositions, potential hydrogen release techniques, and the processes (and their costs) that will be used to recycle the byproducts back to a high hydrogen content slurry were evaluated. A 75% MgH2 slurry was demonstrated, which was just short of the 76% goal. This slurry is pumpable and storable for months at a time at room temperature and pressure conditions and it has the consistency of paint. Two techniques were demonstrated for reacting the slurry with water to release hydrogen. The first technique was a continuous mixing process that was tested for several hours at a time and demonstrated operation without external heat addition. Further work will be required to reduce this design to a reliable, robust system. The second technique was a semi-continuous process. It was demonstrated on a 2 kWh scale. This system operated continuously and reliably for hours at a time, including starts and stops. This process could be readily reduced to practice for commercial applications. The processes and costs associated with recycling the byproducts of the water/slurry reaction were also evaluated. This included recovering and recycling the oils of the slurry, reforming the magnesium hydroxide and magnesium oxide byproduct to magnesium metal, hydriding the magnesium metal with hydrogen to form magnesium hydride, and preparing the slurry. We found that the SOM process, under development by Boston University, offers the lowest cost alternative for producing and recycling the slurry. Using the H2A framework, a total cost of production, delivery, and distribution of $4.50/kg of hydrogen delivered or $4.50/gge was determined. Experiments performed at Boston University have demonstrated the technical viability of the process and have provided data for the cost analyses that have been performed. We also concluded that a carbothermic process could also produce magnesium at acceptable costs. The use of slurry as a medium to carry chemical hydrides has been shown during this project to offer significant advantages for storing, delivering, and distributing hydrogen: • Magnesium hydride slurry is stable for months and pumpable. • The oils of the slurry minimize the contact of oxygen and moisture in the air with the metal hydride in the slurry. Thus reactive chemicals, such as lithium hydride, can be handled safely in the air when encased in the oils of the slurry. • Though magnesium hydride offers an additional safety feature of not reacting readily with water at room temperatures, it does react readily with water at temperatures above the boiling point of water. Thus when hydrogen is needed, the slurry and water are heated until the reaction begins, then the reaction energy provides heat for more slurry and water to be heated. • The reaction system can be relatively small and light and the slurry can be stored in conventional liquid fuel tanks. When transported and stored, the conventional liquid fuel infrastructure can be used. • The particular metal hydride of interest in this project, magnesium hydride, forms benign byproducts, magnesium hydroxide (“Milk of Magnesia”) and magnesium oxide. • We have estimated that a magnesium hydride slurry system (including the mixer device and tanks) could meet the DOE 2010 energy density goals. ? During the investigation of hydriding techniques, we learned that magnesium hydride in a slurry can also be cycled in a rechargeable fashion. Thus, magnesium hydride slurry can act either as a chemical hydride storage medium or as a rechargeable hydride storage system. Hydrogen can be stored and delivered and then stored again thus significantly reducing the cost of storing and delivering hydrogen. Further evaluation and development of this concept will be performed as follow-on work under a

  6. Pumping characteristics of chopped sorghum slurries 

    E-Print Network [OSTI]

    Ou, Shichuan

    1986-01-01T23:59:59.000Z

    simultaneously in a pipeline. Classification of Solids Durand and Condolios (1953) published the following classification of particles in which each mode of particle transport was associated with a specific range of particle size. 1. Particles of a size less... is the settled-bed velocity, or deposition velocity. This is the mean velocity for the pipeline below which solids will settle on the bottom of the pipe (Cave and McElvain, 1983). It is important to know what the settled-bed velocity for a particular slurry...

  7. CST/Water Slurry Mixing and Resuspension

    SciTech Connect (OSTI)

    Baich, M.A.

    2001-02-13T23:59:59.000Z

    Crystalline Silicotitanate (CST) was selected as one of the alternatives to the In-Tank Precipitation Process (ITP) for removal of cesium from the salt waste at Savannah River Site. The proposed salt waste treatment process using CST would involve passing a filtered salt waste through a fixed bed of CST. The CST would remove the cesium from the salt waste by ion exchange and the decontaminated salt would be incorporated into the Saltstone Process. This report documents the results of investigations into the mixing and re-suspension characteristics of two 10 wt percent CST slurries.

  8. Method and apparatus for improved wire saw slurry

    DOE Patents [OSTI]

    Costantini, Michael A. (Hudson, NH); Talbott, Jonathan A. (Amherst, NH); Chandra, Mohan (Merrimack, NH); Prasad, Vishwanath (East Setauket, NY); Caster, Allison (Nashua, NH); Gupta, Kedar P. (Merrimack, NH); Leyvraz, Philippe (Nashua, NH)

    2000-09-05T23:59:59.000Z

    A slurry recycle process for use in free-abrasive machining operations such as for wire saws used in wafer slicing of ingots, where the used slurry is separated into kerf-rich and abrasive-rich components, and the abrasive-rich component is reconstituted into a makeup slurry. During the process, the average particle size of the makeup slurry is controlled by monitoring the condition of the kerf and abrasive components and making necessary adjustments to the separating force and dwell time of the separator apparatus. Related pre-separator and post separator treatments, and feedback of one or the other separator slurry output components for mixing with incoming used slurry and recirculation through the separator, provide further effectiveness and additional control points in the process. The kerf-rich component is eventually or continually removed; the abrasive-rich component is reconstituted into a makeup slurry with a controlled, average particle size such that the products of the free-abrasive machining method using the recycled slurry process of the invention are of consistent high quality with less TTV deviation from cycle to cycle for a prolonged period or series of machining operations.

  9. Lime slurry use at the Industrial Wastewater Pretreatment Facility

    SciTech Connect (OSTI)

    Rice, L.E. [Allied-Signal Aerospace Co., Kansas City, MO (United States). Kansas City Div.; Hughes, R.W. [Professional Services Group, Inc., Kansas City, MO (United States); Baggett, G. [Genex/Praxair, Inc., Kansas City, MO (United States)

    1996-04-01T23:59:59.000Z

    The use of lime slurry at the IWPF demonstrated many benefits. Hazardous chemical use was reduced, solids handling was improved, water quality was enhanced and there has been a cost savings. The lime slurry also enabled the plant to begin treating the soluble oil waste, which we were not able to do in the past.

  10. MEASURING GASEOUS EMISSIONS FROM STORED PIG SLURRY S. Espagnol1

    E-Print Network [OSTI]

    Boyer, Edmond

    2 MEASURING GASEOUS EMISSIONS FROM STORED PIG SLURRY S. Espagnol1 , L. Loyon2 , F. Guiziou2 , P to measure emissions factors of ammonia (NH3), nitrous oxide (N2O) methane (CH4) and carbon dioxide (CO2) from stored pig slurry and measured the variations of the emissions in time and space. In 2006, dynamic

  11. Fuel injection of coal slurry using vortex nozzles and valves

    DOE Patents [OSTI]

    Holmes, Allen B. (Rockville, MD)

    1989-01-01T23:59:59.000Z

    Injection of atomized coal slurry fuel into an engine combustion chamber is achieved at relatively low pressures by means of a vortex swirl nozzle. The outlet opening of the vortex nozzle is considerably larger than conventional nozzle outlets, thereby eliminating major sources of failure due to clogging by contaminants in the fuel. Control fluid, such as air, may be used to impart vorticity to the slurry and/or purge the nozzle of contaminants during the times between measured slurry charges. The measured slurry charges may be produced by a diaphragm pump or by vortex valves controlled by a separate control fluid. Fluidic circuitry, employing vortex valves to alternatively block and pass cool slurry fuel flow, is disclosed.

  12. Bubble column apparatus for separating wax from catalyst slurry

    DOE Patents [OSTI]

    Neathery, James K.; Davis, Burtron H.

    2004-07-13T23:59:59.000Z

    Novel methods and devices for production of liquid hydrocarbon products from gaseous reactants are disclosed. In one aspect, a method for separating a liquid hydrocarbon, typically a wax, from a catalyst containing slurry is provided, comprising passing the slurry through at least one downcomer extending from an overhead separation chamber and discharging into the bottom of a slurry bubble column reactor. The downcomer includes a cross-flow filtration element for separating a substantially particle-free liquid hydrocarbon for downstream processing. In another aspect, a method for promoting plug-flow movement in a recirculating slurry bubble column reactor is provided, comprising discharging the recirculating slurry into the reactor through at least one downcomer which terminates near the bottom of the reactor. Devices for accomplishing the above methods are also provided.

  13. Improved Fischer-Tropsch Slurry Reactors

    SciTech Connect (OSTI)

    Andrew Lucero

    2009-03-20T23:59:59.000Z

    The conversion of synthesis gas to hydrocarbons or alcohols involves highly exothermic reactions. Temperature control is a critical issue in these reactors for a number of reasons. Runaway reactions can be a serious safety issue, even raising the possibility of an explosion. Catalyst deactivation rates tend to increase with temperature, particularly of there are hot spots in the reactor. For alcohol synthesis, temperature control is essential because it has a large effect on the selectivity of the catalysts toward desired products. For example, for molybdenum disulfide catalysts unwanted side products such as methane, ethane, and propane are produced in much greater quantities if the temperature increases outside an ideal range. Slurry reactors are widely regarded as an efficient design for these reactions. In a slurry reactor a solid catalyst is suspended in an inert hydrocarbon liquid, synthesis gas is sparged into the bottom of the reactor, un-reacted synthesis gas and light boiling range products are removed as a gas stream, and heavy boiling range products are removed as a liquid stream. This configuration has several positive effects for synthesis gas reactions including: essentially isothermal operation, small catalyst particles to reduce heat and mass transfer effects, capability to remove heat rapidly through liquid vaporization, and improved flexibility on catalyst design through physical mixtures in addition to use of compositions that cannot be pelletized. Disadvantages include additional mass transfer resistance, potential for significant back-mixing on both the liquid and gas phases, and bubble coalescence. In 2001 a multiyear project was proposed to develop improved FT slurry reactors. The planned focus of the work was to improve the reactors by improving mass transfer while considering heat transfer issues. During the first year of the project the work was started and several concepts were developed to prepare for bench-scale testing. PowerEnerCat was unable to raise their cash contribution for the project, and the work was stopped. This report summarizes some of the progress of the project and the concepts that were intended for experimental tests.

  14. Removal of particulate solids from a hot hydrocarbon slurry oil

    SciTech Connect (OSTI)

    Rush, J.B.

    1991-12-31T23:59:59.000Z

    This patent describes a method of treating a hot, refractory hydrocarbon slurry oil having an initial boiling point at atmospheric pressure at least as high as 500{degrees} F and having a gravity of from about 5{degrees} API to about 15{degrees} API, to remove solid particulate material the slurry oil. It comprises mixing with the hot slurry oil, a hot vacuum reduced crude oil having an initial boiling point at atmospheric pressure which is higher than the initial boiling plant at atmospheric pressure of the slurry oil, and having an end point at atmospheric pressure which is higher than the end point at atmospheric pressure of the slurry oil; charging the mixture of hot vacuum reduced crude oil and hot slurry oil to a vacuum flash zone having a pressure of from 1.0 mm Hg to about 10.0 mm Hg and at the selected temperature of less than 700{degrees} F and more than 300{degrees} F to thereby vaporize a major portion of the slurry oil in the mixture, and to thereby transfer substantially all of the solid particulate material into the bottoms liquid remaining in the flash zone following the completion of the vaporization; recovering the overhead; and recovering the liquid bottoms containing the solid particulate material.

  15. Roles of additives and surface control in slurry atomization

    SciTech Connect (OSTI)

    Tsai, S.C.

    1990-07-10T23:59:59.000Z

    Airblast atomization of micronized coal water slurry is carried out using twin-fluid jet atomizers of various distributor designs. Drop size and size distribution are measured using the laser diffraction technique. We found that the atomized drop sizes of micronized coal water slurries substantially decrease as the atomizing air pressure exceeds a threshold value. We also found that the atomized drop size, represented by the mass median diameter (MMD) can be described by the wave mechanism-based models in terms of three non-dimensional groups, namely, slurry-to-air mass ratio, the Weber number, and the Ohnesorge number. 11 refs.

  16. Modeling the structure of coal water slurry (CWS) sprays

    E-Print Network [OSTI]

    Prithiviraj, Manikandan

    1993-01-01T23:59:59.000Z

    This thesis describes a model of coal water slurry (CWS) sprays and presents new experimental data for CWS viscosities. The model is based on the aerodynamic theory of spray atomization which has been successfully used for Diesel sprays. However...

  17. Supercritical extraction of organic mixtures from soil-water slurries

    E-Print Network [OSTI]

    Green, Lynda Ann

    1994-01-01T23:59:59.000Z

    Supercritical C02was used to extract orgamc rruxtures from soil-water slurries. The extent of extraction and the equilibrium distribution of the mixture and of the individual components were determined. A single stage batch vessel was used...

  18. Hydraulic and slurry flows through a channel contraction

    E-Print Network [OSTI]

    Al Hanbali, Ahmad

    Hydraulic and slurry flows through a channel contraction Onno Bokhove o, Twente #12;Hydraulic flow through channel contraction Outline · 1. Introduction · 2. Experiments · 3. Conclusions · References ISSF 2008 University of Twente Page 2 #12;Hydraulic flow through channel contraction

  19. Ultrasonic techniques for measuring rheological properties of rice slurries

    E-Print Network [OSTI]

    Howell, Terry Allen

    1995-01-01T23:59:59.000Z

    systems during food processing, resulting in poorly processed foods or production delays in processing plants. This research describes the development of a ultrasonic sensor to measure viscoelastic properties of rice slurries and dough. This inexpensive...

  20. Effects of mineral fillers in slurry seal mixtures

    E-Print Network [OSTI]

    Harper, William Joe

    1964-01-01T23:59:59.000Z

    rather than a desi~. The current practice among engineers and contractors is to prepare a mixture in ac- cordance with these specifications using local materials. In many cases a mineral filler, usually portland cement, is added to "improve... applied to portland cement concrete pavements to improve the skid resistance and riding qualities of tbe surface. A slurry seal cost does not increase or improve the strength of the pavement structure . The City of Las Vagas, New Mexico, used slurry...

  1. Slurry burner for mixture of carbonaceous material and water

    DOE Patents [OSTI]

    Nodd, Dennis G. (West Mifflin, PA); Walker, Richard J. (Bethel Park, PA)

    1987-01-01T23:59:59.000Z

    A carbonaceous material-water slurry burner includes a high pressure tip-emulsion atomizer for directing a carbonaceous material-water slurry into a combustion chamber for burning therein without requiring a support fuel or oxygen enrichment of the combustion air. Introduction of the carbonaceous material-water slurry under pressure forces it through a fixed atomizer wherein the slurry is reduced to small droplets by mixing with an atomizing air flow and directed into the combustion chamber. The atomizer includes a swirler located immediately adjacent to where the fuel slurry is introduced into the combustion chamber and which has a single center channel through which the carbonaceous material-water slurry flows into a plurality of diverging channels continuous with the center channel from which the slurry exits the swirler immediately adjacent to an aperture in the combustion chamber. The swirler includes a plurality of slots around its periphery extending the length thereof through which the atomizing air flows and by means of which the atomizing air is deflected so as to exert a maximum shear force upon the carbonaceous material-water slurry as it exits the swirler and enters the combustion chamber. A circulating coolant system or boiler feed water is provided around the periphery of the burner along the length thereof to regulate burner operating temperature, eliminate atomizer plugging, and inhibit the generation of sparklers, thus increasing combustion efficiency. A secondary air source directs heated air into the combustion chamber to promote recirculation of the hot combustion gases within the combustion chamber.

  2. Design, maintenance extend FGD system slurry valve life

    SciTech Connect (OSTI)

    LeMay, B. [St. John`s River Power Park, Jacksonville, FL (United States); Willyard, B. [Grand River Dam Authority, Chouteau, OK (United States); Polasek, S. [Lower Colorado River Authority, Austin, TX (United States); Clarkson, C.W. [Clarkson Co., Sparks, NV (United States)

    1995-08-01T23:59:59.000Z

    This article describes how power plants in Florida, Oklahoma and Texas adopted improved maintenance techniques and sought better design criteria to gain greater slurry valve reliability. Slurry valves, a vital part of a flue gas desulfurization (FGD) system, are critical to a power plant`s ability to meet or exceed acid rain emission requirements. The performance and reliability of these valves can significantly affect unit operation and load capacity. For example, slurry valves installed on the suction and discharge ends of scrubber tower pumps are a main point of isolation. When these valves malfunction, the scrubber tower must be shut down. Problems with valves that control the feed system and reaction tank alter slurry pH and density, and also affect unit load. In addition, a single valve that serves dual-pumping systems from the slurry storage tank to the reaction tank can cause a system outage. Because of their key role in system operation, specific maintenance approaches were developed at several power plants to improve slurry valve reliability and run times.

  3. Technical Report on NETL's Non Newtonian Multiphase Slurry Workshop: A path forward to understanding non-Newtonian multiphase slurry flows

    SciTech Connect (OSTI)

    Edited by Guenther, Chris; Garg, Rahul

    2013-08-19T23:59:59.000Z

    The Department of Energy’s (DOE) National Energy Technology Laboratory (NETL) sponsored a workshop on non-Newtonian multiphase slurry at NETL’s Morgantown campus August 19 and 20, 2013. The objective of this special two-day meeting of 20-30 invited experts from industry, National Labs and academia was to identify and address technical issues associated with handling non-Newtonian multiphase slurries across various facilities managed by DOE. Particular emphasis during this workshop was placed on applications managed by the Office of Environmental Management (EM). The workshop was preceded by two webinars wherein personnel from ORP and NETL provided background information on the Hanford WTP project and discussed the critical design challenges facing this project. In non-Newtonian fluids, viscosity is not constant and exhibits a complex dependence on applied shear stress or deformation. Many applications under EM’s tank farm mission involve non-Newtonian slurries that are multiphase in nature; tank farm storage and handling, slurry transport, and mixing all involve multiphase flow dynamics, which require an improved understanding of the mechanisms responsible for rheological changes in non-Newtonian multiphase slurries (NNMS). To discuss the issues in predicting the behavior of NNMS, the workshop focused on two topic areas: (1) State-of-the-art in non-Newtonian Multiphase Slurry Flow, and (2) Scaling up with Confidence and Ensuring Safe and Reliable Long-Term Operation.

  4. Combined on-board hydride slurry storage and reactor system and process for hydrogen-powered vehicles and devices

    DOE Patents [OSTI]

    Brooks, Kriston P; Holladay, Jamelyn D; Simmons, Kevin L; Herling, Darrell R

    2014-11-18T23:59:59.000Z

    An on-board hydride storage system and process are described. The system includes a slurry storage system that includes a slurry reactor and a variable concentration slurry. In one preferred configuration, the storage system stores a slurry containing a hydride storage material in a carrier fluid at a first concentration of hydride solids. The slurry reactor receives the slurry containing a second concentration of the hydride storage material and releases hydrogen as a fuel to hydrogen-power devices and vehicles.

  5. THE FURNACE COMBUSTION AND RADIATION CHARACTERISTICS OF METHANOL AND A METHANOL/COAL SLURRY

    E-Print Network [OSTI]

    Grosshandler, W.L.

    2010-01-01T23:59:59.000Z

    Spectral Intensity With 5% Coal (x ::: 86.9 cm) CalculatedPredictions B. Methanol/Coal Slurry as the Fuel TemperatureMethanol as the Fuel B. Methanol/Coal Slurry as the Fuel C.

  6. Slurry burner for mixture of carbonaceous material and water

    DOE Patents [OSTI]

    Nodd, D.G.; Walker, R.J.

    1985-11-05T23:59:59.000Z

    The present invention is intended to overcome the limitations of the prior art by providing a fuel burner particularly adapted for the combustion of carbonaceous material-water slurries which includes a stationary high pressure tip-emulsion atomizer which directs a uniform fuel into a shearing air flow as the carbonaceous material-water slurry is directed into a combustion chamber, inhibits the collection of unburned fuel upon and within the atomizer, reduces the slurry to a collection of fine particles upon discharge into the combustion chamber, and regulates the operating temperature of the burner as well as primary air flow about the burner and into the combustion chamber for improved combustion efficiency, no atomizer plugging and enhanced flame stability.

  7. NY Green Bank

    Energy Savers [EERE]

    Monday, October 6 th , 2014 Remarks by Nicholas Whitcombe, Managing Director, New York Green Bank Panel 1: Attracting and Maintaining Capital for Energy Transmission, Storage,...

  8. Iowa Energy Bank

    Broader source: Energy.gov [DOE]

    The Iowa Energy Bank offers Iowa's public facilities, schools, area education agencies, colleges, universities, hospitals and local governments a 1% financing option for the implementation of cost...

  9. The Phase Inversion-based Coal-CO2 Slurry (PHICCOS) Feeding System

    E-Print Network [OSTI]

    The Phase Inversion-based Coal-CO2 Slurry (PHICCOS) Feeding System: Design, Coupled Multiscale. Commercially available feeding systems are based on coal-water slurry or lock hoppers. The earlier penalizes coal feeding system. The proposed Phase Inversion-based Coal-CO2 Slurry (PHICCOS) feeding system uses

  10. THE FURNACE COMBUSTION AND RADIATION CHARACTERISTICS OF METHANOL AND A METHANOL/COAL SLURRY

    E-Print Network [OSTI]

    Grosshandler, W.L.

    2010-01-01T23:59:59.000Z

    Predictions B. Methanol/Coal Slurry as the Fuel TemperatureMETHANOL METHANOL / COAL SLURRY j i Ali. @ i o N I. . , .PURE N METHANOL METHANOL I COAL SLURRY u o Obb~~ ~~~~~~~~~~~

  11. Flow of Fiber-Reinforced Cement Slurries at Elevated Temperatures Y. Wang and C. Meyer

    E-Print Network [OSTI]

    Meyer, Christian

    Flow of Fiber-Reinforced Cement Slurries at Elevated Temperatures Y. Wang and C. Meyer Dept. of Civil Eng. and Eng. Mech., Columbia University, New York, NY 10027, USA Abstract Cement slurries for a constant pressure drop of a fiber-reinforced cement slurry through an eccentric annulus at elevated

  12. Corporate governance and banking regulation

    E-Print Network [OSTI]

    Alexander, Kern

    The globalisation of banking markets has raised important issues regarding corporate governance regulation for banking institutions. This research paper addresses some of the major issues of corporate governance as it relates to banking regulation...

  13. Characterizing Curing-Cement Slurries by Permeability, Tensile Strength,

    E-Print Network [OSTI]

    Backe, Knut

    Characterizing Curing-Cement Slurries by Permeability, Tensile Strength, and Shrinkage K.R. Backe oilwell cements. The results show that the curing characteristics are a function of temperature and that there is a correlation between shrinkage and cement content. The paper also introduces a new mechanism for gas migration

  14. RHEOLOGICAL STUDY OF AN HYDRATE SLURRY FOR AIR CONDITIONNING APPLICATION

    E-Print Network [OSTI]

    Boyer, Edmond

    [-] INTRODUCTION In the context of the classical refrigerants phase out, phase change materials (PCM) arouse great interests. Indeed, for very low temperature application such as refrigeration, ice-slurries are spread as secondary refrigerants. Concerning hydrates, they have been used as PCM for cold storage for years

  15. CoalWater Slurry technology: problems and modeling solutions

    E-Print Network [OSTI]

    Rosso, Fabio

    ·· Coal­Water Slurry technology: problems and modeling solutions A. Fasano, E. De Angelis, A viscosity reaches extremely high values and the product becomes useless. Sedimentation Firenze - 29 october viscosity reaches extremely high values and the product becomes useless. Sedimentation: it's also a long

  16. A bank management audit

    E-Print Network [OSTI]

    Kennemer, Hoyt Granville

    1957-01-01T23:59:59.000Z

    . Bogle Letbetter for their assistance in the preparation of this thesis. Special acknowledgement is also extended to the exec- utives of the Blank Eational Bank foz their time and. co- operation in deueloplnp answers to the questions contained..., ~ ~ ~ 49 X EXECUTIVE EVALUATION w ~ ~ ~ ~ ~ ~ ~ ~ ~ 52 XI CCNCLUSION ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ BIBLIOGRAPHY ~ o APPENDIX ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ 6) LIST OP CHAHTS Chart I, Organisation Chart of the Bank Manage- ment...

  17. Hanford Waste Vitrification Plant full-scale feed preparation testing with water and process simulant slurries

    SciTech Connect (OSTI)

    Gaskill, J.R.; Larson, D.E.; Abrigo, G.P. [and others] [and others

    1996-03-01T23:59:59.000Z

    The Hanford Waste Vitrification Plant was intended to convert selected, pretreated defense high-level waste and transuranic waste from the Hanford Site into a borosilicate glass. A full-scale testing program was conducted with nonradioactive waste simulants to develop information for process and equipment design of the feed-preparation system. The equipment systems tested included the Slurry Receipt and Adjustment Tank, Slurry Mix Evaporator, and Melter-Feed Tank. The areas of data generation included heat transfer (boiling, heating, and cooling), slurry mixing, slurry pumping and transport, slurry sampling, and process chemistry. 13 refs., 129 figs., 68 tabs.

  18. Aerosols generated by spills of viscous solutions and slurries

    SciTech Connect (OSTI)

    Ballinger, M Y; Hodgson, W H

    1986-12-01T23:59:59.000Z

    Safety assessments and environmental impact statements for nuclear fuel cycle facilities require an estimate of potential airborne releases caused by accidents. Aerosols generated by accidents are being investigated by Pacific Northwest Laboratory to develop methods for estimating source terms from these accidents. Experiments were run by spilling viscous solutions and slurries to determine the mass and particle-size distribution of the material made airborne. In all cases, 1 L of solution was spilled from a height of 3 m. Aqueous solutions of sucrose (0 to 56%) gave a range of viscosities from 1.3 to 46 cp. The percent of spill mass made airborne from the spills of these solutions ranged from 0.001 to 0.0001. The mass of particles made airborne decreased as solution viscosity increased. Slurry loading ranged from 25 to 51% total solids. The maximum source airborne (0.0046 wt %) occurred with the slurry that had the lightest loading of soluble solids. The viscosity of the carrying solution also had an impact on the source term from spilling slurries. The effect of surface tension on the source term was examined in two experiments. Surface tension was halved in these spills by adding a surfactant. The maximum weight percent airborne from these spills was 0.0045, compared to 0.003 for spills with twice the surface tension. The aerodynamic mass medium diameters for the aerosols produced by spills of the viscous solutions, slurries, and low surface tension liquids ranged from 0.6 to 8.4 ..mu..m, and the geometric standard deviation ranged from 3.8 to 28.0.

  19. Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure

    DOE Patents [OSTI]

    Loth, John L. (Morgantown, WV); Smith, William C. (Morgantown, WV); Friggens, Gary R. (Morgantown, WV)

    1982-01-01T23:59:59.000Z

    The present invention is directed to a coal-water slurry atomizer for use a high-pressure dryer employed in a pumping system utilized to feed coal into a pressurized coal gasifier. The slurry atomizer is provided with a venturi, constant area slurry injection conduit, and a plurality of tangentially disposed steam injection ports. Superheated steam is injected into the atomizer through these ports to provide a vortical flow of the steam, which, in turn, shears slurry emerging from the slurry injection conduit. The droplets of slurry are rapidly dispersed in the dryer through the venturi where the water is vaporized from the slurry by the steam prior to deleterious heating of the coal.

  20. Emissions Resulting from the Full-Scale Cofiring of Pelletized Refuse-Derived Fuel and Coal

    E-Print Network [OSTI]

    Ohlsson, O. O.; Daugherty, K.; Venables, B.

    Full-scale cofiring tests of binder-enhanced pellets of densified, refuse-derived fuel (dRDF) and high-sulfur coal were conducted during June and July of 1987 in Boiler #5 at Argonne National Laboratory. These tests were conducted with industry...

  1. Refuse derived soluble bio-organics enhancing tomato plant growth and productivity

    SciTech Connect (OSTI)

    Sortino, Orazio [Dipartimento di Scienze Agronomiche Agrochimiche e delle Produzioni Animali, Universita degli Studi di Catania, Via Valdisavoia 5, 95123 Catania (Italy); Dipasquale, Mauro [Dipartimento di Chimica, Universita di Torino, Via P. Giuria 7, 10125 Torino (Italy); Montoneri, Enzo, E-mail: enzo.montoneri@unito.it [Dipartimento di Chimica, Universita di Torino, Via P. Giuria 7, 10125 Torino (Italy); Tomasso, Lorenzo; Perrone, Daniele G. [Dipartimento di Chimica, Universita di Torino, Via P. Giuria 7, 10125 Torino (Italy); Vindrola, Daniela; Negre, Michele; Piccone, Giuseppe [Dipartimento di Valorizzazione e Protezione delle Risorse Agroforestali, Universita di Torino, Via L. da Vinci 44, 10095 Grugliasco (Italy)

    2012-10-15T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer Municipal bio-wastes are a sustainable source of bio-based products. Black-Right-Pointing-Pointer Refuse derived soluble bio-organics promote chlorophyll synthesis. Black-Right-Pointing-Pointer Refuse derived soluble bio-organics enhance plant growth and fruit ripening rate. Black-Right-Pointing-Pointer Sustainable chemistry exploiting urban refuse allows sustainable development. Black-Right-Pointing-Pointer Chemistry, agriculture and the environment benefit from biowaste technology. - Abstract: Municipal bio-refuse (CVD), containing kitchen wastes, home gardening residues and public park trimmings, was treated with alkali to yield a soluble bio-organic fraction (SBO) and an insoluble residue. These materials were characterized using elemental analysis, potentiometric titration, and 13C NMR spectroscopy, and then applied as organic fertilizers to soil for tomato greenhouse cultivation. Their performance was compared with a commercial product obtained from animal residues. Plant growth, fruit yield and quality, and soil and leaf chemical composition were the selected performance indicators. The SBO exhibited the best performance by enhancing leaf chlorophyll content, improving plant growth and fruit ripening rate and yield. No product performance-chemical composition relationship could be assessed. Solubility could be one reason for the superior performance of SBO as a tomato growth promoter. The enhancement of leaf chlorophyll content is discussed to identify a possible link with the SBO photosensitizing properties that have been demonstrated in other work, and thus with photosynthetic performance.

  2. Alternative fuel trucks case studies: Running refuse haulers on compressed natural gas

    SciTech Connect (OSTI)

    Norton, P.; Kelly, K.

    1996-07-01T23:59:59.000Z

    This document details the experience of New York City`s compressed natural gas refuse haulers. These 35 ton vehicles have engines that displace 10 liters and provide 240 horsepower. Fuel economy, range, cost, maintenance, repair issues, and emissions are discussed. Photographs and figures illustrate the attributes of these alternative fuel vehicles.

  3. Analyzing Social Network Structures in the Iterated Prisoner's Dilemma with Choice and Refusal

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Analyzing Social Network Structures in the Iterated Prisoner's Dilemma with Choice and Refusal Mark structures emerge. We examine one particular IPD/CR environment and document the social network methods used within this environment. In particular, the social networks of interesting populations

  4. ADVANCED COMPUTATIONAL MODEL FOR THREE-PHASE SLURRY REACTORS

    SciTech Connect (OSTI)

    Goodarz Ahmadi

    2001-10-01T23:59:59.000Z

    In the second year of the project, the Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column is further developed. The approach uses an Eulerian analysis of liquid flows in the bubble column, and makes use of the Lagrangian trajectory analysis for the bubbles and particle motions. An experimental set for studying a two-dimensional bubble column is also developed. The operation of the bubble column is being tested and diagnostic methodology for quantitative measurements is being developed. An Eulerian computational model for the flow condition in the two-dimensional bubble column is also being developed. The liquid and bubble motions are being analyzed and the results are being compared with the experimental setup. Solid-fluid mixture flows in ducts and passages at different angle of orientations were analyzed. The model predictions were compared with the experimental data and good agreement was found. Gravity chute flows of solid-liquid mixtures is also being studied. Further progress was also made in developing a thermodynamically consistent model for multiphase slurry flows with and without chemical reaction in a state of turbulent motion. The balance laws are obtained and the constitutive laws are being developed. Progress was also made in measuring concentration and velocity of particles of different sizes near a wall in a duct flow. The technique of Phase-Doppler anemometry was used in these studies. The general objective of this project is to provide the needed fundamental understanding of three-phase slurry reactors in Fischer-Tropsch (F-T) liquid fuel synthesis. The other main goal is to develop a computational capability for predicting the transport and processing of three-phase coal slurries. The specific objectives are: (1) To develop a thermodynamically consistent rate-dependent anisotropic model for multiphase slurry flows with and without chemical reaction for application to coal liquefaction. Also establish the material parameters of the model. (2) To provide experimental data for phasic fluctuation and mean velocities, as well as the solid volume fraction in the shear flow devices. (3) To develop an accurate computational capability incorporating the new rate-dependent and anisotropic model for analyzing reacting and nonreacting slurry flows, and to solve a number of technologically important problems related to Fischer-Tropsch (F-T) liquid fuel production processes. (4) To verify the validity of the developed model by comparing the predicted results with the performed and the available experimental data under idealized conditions.

  5. ADVANCED COMPUTATIONAL MODEL FOR THREE-PHASE SLURRY REACTORS

    SciTech Connect (OSTI)

    Goodarz Ahmadi

    2000-11-01T23:59:59.000Z

    In the first year of the project, solid-fluid mixture flows in ducts and passages at different angle of orientations were analyzed. The model predictions are compared with the experimental data and good agreement was found. Progress was also made in analyzing the gravity chute flows of solid-liquid mixtures. An Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column is being developed. The approach uses an Eulerian analysis of gas liquid flows in the bubble column, and makes use of the Lagrangian particle tracking procedure to analyze the particle motions. Progress was also made in developing a rate dependent thermodynamically consistent model for multiphase slurry flows in a state of turbulent motion. The new model includes the effect of phasic interactions and leads to anisotropic effective phasic stress tensors. Progress was also made in measuring concentration and velocity of particles of different sizes near a wall in a duct flow. The formulation of a thermodynamically consistent model for chemically active multiphase solid-fluid flows in a turbulent state of motion was also initiated. The general objective of this project is to provide the needed fundamental understanding of three-phase slurry reactors in Fischer-Tropsch (F-T) liquid fuel synthesis. The other main goal is to develop a computational capability for predicting the transport and processing of three-phase coal slurries. The specific objectives are: (1) To develop a thermodynamically consistent rate-dependent anisotropic model for multiphase slurry flows with and without chemical reaction for application to coal liquefaction. Also to establish the material parameters of the model. (2) To provide experimental data for phasic fluctuation and mean velocities, as well as the solid volume fraction in the shear flow devices. (3) To develop an accurate computational capability incorporating the new rate-dependent and anisotropic model for analyzing reacting and nonreacting slurry flows, and to solve a number of technologically important problems related to Fischer-Tropsch (F-T) liquid fuel production processes. (4) To verify the validity of the developed model by comparing the predicted results with the performed and the available experimental data under idealized conditions.

  6. Superheated fuel injection for combustion of liquid-solid slurries

    DOE Patents [OSTI]

    Robben, F.A.

    1984-10-19T23:59:59.000Z

    A method and device are claimed for obtaining, upon injection, flash evaporation of a liquid in a slurry fuel to aid in ignition and combustion. The device is particularly beneficial for use of coal-water slurry fuels in internal combustion engines such as diesel engines and gas turbines, and in external combustion devices such as boilers and furnaces. The slurry fuel is heated under pressure to near critical temperature in an injector accumulator, where the pressure is sufficiently high to prevent boiling. After injection into a combustion chamber, the water temperature will be well above boiling point at a reduced pressure in the combustion chamber, and flash boiling will preferentially take place at solid-liquid surfaces, resulting in the shattering of water droplets and the subsequent separation of the water from coal particles. This prevents the agglomeration of the coal particles during the subsequent ignition and combustion process, and reduces the energy required to evaporate the water and to heat the coal particles to ignition temperature. The overall effect will be to accelerate the ignition and combustion rates, and to reduce the size of the ash particles formed from the coal. 2 figs., 2 tabs.

  7. Superheated fuel injection for combustion of liquid-solid slurries

    DOE Patents [OSTI]

    Robben, Franklin A. (Berkeley, CA)

    1985-01-01T23:59:59.000Z

    A method and device for obtaining, upon injection, flash evaporation of a liquid in a slurry fuel to aid in ignition and combustion. The device is particularly beneficial for use of coal-water slurry fuels in internal combustion engines such as diesel engines and gas turbines, and in external combustion devices such as boilers and furnaces. The slurry fuel is heated under pressure to near critical temperature in an injector accumulator, where the pressure is sufficiently high to prevent boiling. After injection into a combustion chamber, the water temperature will be well above boiling point at a reduced pressure in the combustion chamber, and flash boiling will preferentially take place at solid-liquid surfaces, resulting in the shattering of water droplets and the subsequent separation of the water from coal particles. This prevents the agglomeration of the coal particles during the subsequent ignition and combustion process, and reduces the energy required to evaporate the water and to heat the coal particles to ignition temperature. The overall effect will be to accelerate the ignition and combustion rates, and to reduce the size of the ash particles formed from the coal.

  8. Process for gasifying carbonaceous material from a recycled condensate slurry

    DOE Patents [OSTI]

    Forney, Albert J. (Coraopolis, PA); Haynes, William P. (Pittsburgh, PA)

    1981-01-01T23:59:59.000Z

    Coal or other carbonaceous material is gasified by reaction with steam and oxygen in a manner to minimize the problems of effluent water stream disposal. The condensate water from the product gas is recycled to slurry the coal feed and the amount of additional water or steam added for cooling or heating is minimized and preferably kept to a level of about that required to react with the carbonaceous material in the gasification reaction. The gasification is performed in a pressurized fluidized bed with the coal fed in a water slurry and preheated or vaporized by indirect heat exchange contact with product gas and recycled steam. The carbonaceous material is conveyed in a gas-solid mixture from bottom to top of the pressurized fluidized bed gasifier with the solids removed from the product gas and recycled steam in a supported moving bed filter of the resulting carbonaceous char. Steam is condensed from the product gas and the condensate recycled to form a slurry with the feed coal carbonaceous particles.

  9. Hardened, environmentally disposable composite granules of coal cleaning refuse, coal combustion waste, and other wastes, and method preparing the same

    DOE Patents [OSTI]

    Burnet, George (Ames, IA); Gokhale, Ashok J. (College Station, TX)

    1990-07-10T23:59:59.000Z

    A hardened, environmentally inert and disposable composite granule of coal cleaning refuse and coal combustion waste, and method for producing the same, wherein the coal combustion waste is first granulated. The coal cleaning refuse is pulverized into fine particles and is then bound, as an outer layer, to the granulated coal combustion waste granules. This combination is then combusted and sintered. After cooling, the combination results in hardened, environmentally inert and disposable composite granules having cores of coal combustion waste, and outer shells of coal cleaning refuse. The composite particles are durable and extremely resistant to environmental and chemical forces.

  10. Hardened, environmentally disposable composite granules of coal cleaning refuse, coal combustion waste, and other wastes, and method preparing the same

    DOE Patents [OSTI]

    Burnet, G.; Gokhale, A.J.

    1990-07-10T23:59:59.000Z

    A hardened, environmentally inert and disposable composite granule of coal cleaning refuse and coal combustion waste and method for producing the same are disclosed, wherein the coal combustion waste is first granulated. The coal cleaning refuse is pulverized into fine particles and is then bound, as an outer layer, to the granulated coal combustion waste granules. This combination is then combusted and sintered. After cooling, the combination results in hardened, environmentally inert and disposable composite granules having cores of coal combustion waste, and outer shells of coal cleaning refuse. The composite particles are durable and extremely resistant to environmental and chemical forces. 3 figs.

  11. Effects of friction factor and slip factor on the performance of a centrifugal slurry pump

    E-Print Network [OSTI]

    Sheth, Ketankumar Kantilal

    1985-01-01T23:59:59.000Z

    in dredging operations, chemical plants, power plants, and for handling coal slurries. For higher discharge pressure requirements, centrifugal slurry pumps are operated in series with up to six stages, 800 horsepower on each stage, and discharge pressures...EFFECTS OF FRICTION FACTOR AND SLIP FACTOR ON THE PERFORMANCE OF A CENTRIFUGAL SLURRY PUMP A Thesis by KETANKUMAR KANTILAL SHETH Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements...

  12. The role of microorganisms in the production of volatile sulfhydryl compounds in cheddar cheese slurries

    E-Print Network [OSTI]

    Ponce-Trevino, Raul

    1988-01-01T23:59:59.000Z

    the role of lac- tic cultures on the production of volatile sulfhydryl com- pounds in the slurries. Hydrogen sulfide, methanethiol, carbonyl sulfide and dimethyl sulfide were found in the headspace of slurries prepared from curd manufactured... by the culture procedure. Addition of an antibiotic mixture to slurries prepared from curd manufactured by the culture me- thod inhibited bacteria growth and the production of hydro- gen sulfide and dimethyl sulfide. A mixture of antibiotics was added...

  13. Precipitate hydrolysis process for the removal of organic compounds from nuclear waste slurries

    DOE Patents [OSTI]

    Doherty, J.P.; Marek, J.C.

    1987-02-25T23:59:59.000Z

    A process for removing organic compounds from a nuclear waste slurry comprising reacting a mixture of radioactive waste precipitate slurry and an acid in the presence of a catalytically effective amount of a copper(II) catalyst whereby the organic compounds in the precipitate slurry are hydrolyzed to form volatile organic compounds which are separated from the reacting mixture. The resulting waste slurry, containing less than 10 percent of the original organic compounds, is subsequently blended with high level radioactive sludge land transferred to a vitrification facility for processing into borosilicate glass for long-term storage. 2 figs., 3 tabs.

  14. Test Loop Demonstration and Evaluation of Slurry Transfer Line Critical Velocity Measurement Instruments

    SciTech Connect (OSTI)

    Bontha, Jagannadha R.; Jenks, Jeromy WJ; Morgen, Gerald P.; Peters, Timothy J.; Wilcox, Wayne A.; Adkins, Harold E.; Burns, Carolyn A.; Greenwood, Margaret S.; MacFarlan, Paul J.; Denslow, Kayte M.; Schonewill, Philip P.; Blanchard, Jeremy; Baer, Ellen BK

    2010-07-31T23:59:59.000Z

    This report presents the results of the evaluation of three ultrasonic sensors for detecting critical velocity during slurry transfer between the Hanford tank farms and the WTP.

  15. Precipitate hydrolysis process for the removal of organic compounds from nuclear waste slurries

    DOE Patents [OSTI]

    Doherty, Joseph P. (Elkton, MD); Marek, James C. (Augusta, GA)

    1989-01-01T23:59:59.000Z

    A process for removing organic compounds from a nuclear waste slurry comprising reacting a mixture of radioactive waste precipitate slurry and an acid in the presence of a catalytically effective amount of a copper (II) catalyst whereby the organic compounds in the precipitate slurry are hydrolyzed to form volatile organic compounds which are separated from the reacting mixture. The resulting waste slurry, containing less than 10 percent of the orginal organic compounds, is subsequently blended with high level radioactive sludge and transferred to a virtrification facility for processing into borosilicate glass for long-term storage.

  16. Evaluation of the transport and resuspension of a simulated nuclear waste slurry: Nuclear Waste Treatment Program

    SciTech Connect (OSTI)

    Carleson, T.E.; Drown, D.C.; Hart, R.E.; Peterson, M.E.

    1987-09-01T23:59:59.000Z

    The Department of Chemical Engineering at the University of Idaho conducted research on the transport and resuspension of a simulated high-level nuclear waste slurry. In the United States, the reference process for treating both defense and civilian HLLW is vitrification using the liquid-fed ceramic melter process. The non-Newtonian behavior of the slurry complicates the evaluation of the transport and resuspension characteristics of the slurry. The resuspension of a simulated (nonradioactive) melter feed slurry was evaluated using a slurry designated as WV-205. The simulated slurry was developed for the West Valley Demonstration Project and was used during a pilot-scale ceramic melter (PSCM) experiment conducted at PNL in July 1985 (PSCM-21). This study involved determining the transport characteristics of a fully suspended slurry and the resuspension characteristics of settled solids in a pilot-scale pipe loop. The goal was to predict the transport and resuspension of a full-scale system based on rheological data for a specific slurry. The rheological behavior of the slurry was evaluated using a concentric cylinder rotational viscometer, a capillary tube viscometer, and the pilot-scale pipe loop. The results obtained from the three approaches were compared. 40 refs., 74 figs., 15 tabs.

  17. Method of preparing a high solids content, low viscosity ceramic slurry

    DOE Patents [OSTI]

    Tiegs, Terry N. (Lenoir City, TN); Wittmer, Dale E. (Carbondale, IL)

    1995-01-01T23:59:59.000Z

    A method for producing a high solids content, low viscosity ceramic slurry composition comprises turbomilling a dispersion of a ceramic powder in a liquid to form a slurry having a viscosity less than 100 centipoise and a solids content equal to or greater than 48 volume percent.

  18. Method of preparing a high solids content, low viscosity ceramic slurry

    DOE Patents [OSTI]

    Tiegs, T.N.; Wittmer, D.E.

    1995-10-10T23:59:59.000Z

    A method for producing a high solids content, low viscosity ceramic slurry composition comprises turbomilling a dispersion of a ceramic powder in a liquid to form a slurry having a viscosity less than 100 centipoise and a solids content equal to or greater than 48 volume percent.

  19. Natural Gas Hydrate Particles in Oil-Free Systems with Kinetic Inhibition and Slurry Viscosity Reduction

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    Natural Gas Hydrate Particles in Oil-Free Systems with Kinetic Inhibition and Slurry Viscosity, reduction of slurry viscosity, and corrosion inhibition. INTRODUCTION Water often forms gas hydrates antiagglomeration (AA) in the natural gas hydrate literature. The main limitation to application has been the need

  20. KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYNTHESIS

    SciTech Connect (OSTI)

    Dragomir B. Bukur; Gilbert F. Froment; Lech Nowicki; Jiang Wang; Wen-Ping Ma

    2003-09-29T23:59:59.000Z

    This report covers the first year of this three-year research grant under the University Coal Research program. The overall objective of this project is to develop a comprehensive kinetic model for slurry phase Fischer-Tropsch synthesis on iron catalysts. This model will be validated with experimental data obtained in a stirred tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict concentrations of all reactants and major product species (H{sup 2}O, CO{sub 2}, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the reporting period we have completed one STSR test with precipitated iron catalyst obtained from Ruhrchemie AG (Oberhausen-Holten, Germany). This catalyst was initially in commercial fixed bed reactors at Sasol in South Africa. The catalyst was tested at 13 different sets of process conditions, and had experienced a moderate deactivation during the first 500 h of testing (decrease in conversion from 56% to 50% at baseline process conditions). The second STSR test has been initiated and after 270 h on stream, the catalyst was tested at 6 different sets of process conditions.

  1. KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYNTHESIS

    SciTech Connect (OSTI)

    Dragomir B. Bukur

    2004-09-29T23:59:59.000Z

    This report covers the second year of this three-year research grant under the University Coal Research program. The overall objective of this project is to develop a comprehensive kinetic model for slurry phase Fischer-Tropsch synthesis on iron catalysts. This model will be validated with experimental data obtained in a stirred tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict concentrations of all reactants and major product species (H{sub 2}O, CO{sub 2}, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the second year of the project we completed the STSR test SB-26203 (275-343 h on stream), which was initiated during the first year of the project, and another STSR test (SB-28603 lasting 341 h). Since the inception of the project we completed 3 STSR tests, and evaluated catalyst under 25 different sets of process conditions. A precipitated iron catalyst obtained from Ruhrchemie AG (Oberhausen-Holten, Germany) was used in all tests. This catalyst was used initially in commercial fixed bed reactors at Sasol in South Africa. Also, during the second year we performed a qualitative analysis of experimental data from all three STSR tests. Effects of process conditions (reaction temperature, pressure, feed composition and gas space velocity) on water-gas-shift (WGS) activity and hydrocarbon product distribution have been determined.

  2. Separation of catalyst from Fischer-Tropsch slurry

    DOE Patents [OSTI]

    White, C.M.; Quiring, M.S.; Jensen, K.L.; Hickey, R.F.; Gillham, L.D.

    1998-10-27T23:59:59.000Z

    In a catalytic process for converting synthesis gas including hydrogen and carbon monoxide to hydrocarbons and oxygenates by a slurry Fischer-Tropsch synthesis, the wax product along with dispersed catalyst is removed from the slurry and purified by removing substantially all of the catalyst prior to upgrading the wax and returning a portion to the Fischer-Tropsch reaction. Separation of the catalyst particles from the wax product is accomplished by dense gas and/or liquid extraction in which the organic compounds in the wax are dissolved and carried away from the insoluble inorganic catalyst particles that are primarily inorganic in nature. The purified catalyst-free wax product can be subsequently upgraded by various methods such as hydrogenation, isomerization, hydrocracking, conversion to gasoline and other products over ZSM-5 aluminosilicate zeolite, etc. The catalyst particles are returned to the Fischer-Tropsch Reactor by mixing them with a wax fraction of appropriate molecular weight, boiling point and viscosity to avoid reactor gelation. 2 figs.

  3. Separation of catalyst from Fischer-Tropsch slurry

    DOE Patents [OSTI]

    White, Curt M. (Pittsburgh, PA); Quiring, Michael S. (Katy, TX); Jensen, Karen L. (Pittsburgh, PA); Hickey, Richard F. (Bethel Park, PA); Gillham, Larry D. (Bartlesville, OK)

    1998-10-27T23:59:59.000Z

    In a catalytic process for converting synthesis gas including hydrogen and carbon monoxide to hydrocarbons and oxygenates by a slurry Fischer-Tropsch synthesis, the wax product along with dispersed catalyst is removed from the slurry and purified by removing substantially all of the catalyst prior to upgrading the wax and returning a portion to the Fischer-Tropsch reaction. Separation of the catalyst particles from the wax product is accomplished by dense gas and/or liquid extraction in which the organic compounds in the wax are dissolved and carried away from the insoluble inorganic catalyst particles that are primarily inorganic in nature. The purified catalyst free wax product can be subsequently upgraded by various methods such as hydrogenation, isomerization, hydrocracking, conversion to gasoline and other products over ZSM-5 aluminosilicate zeolite, etc. The catalyst particles are returned to the Fischer-Tropsch Reactor by slurring them with a wax fraction of appropriate molecular weight, boiling point and viscosity to avoid reactor gelation.

  4. Slurry Phase Iron Catalysts for Indirect Coal LIquefaction.

    SciTech Connect (OSTI)

    Datye, A.K.

    1997-08-08T23:59:59.000Z

    This report covers the fourth six month period of this three year grant under the University Coal Research program. During this period, we have begun the synthesis of precipitated catalysts using a bench-top spray dryer. The influence of binders on particle strength was also studied using the ultrasonic fragmentation approach to derive particle breaking stress. A similar approach was used to derive particle strength of catalysts obtained from Mr. Robert Gormley at FETC. Over the next six month period, this work will be continued while the catalysts prepared here will be examined by TPR to determine reducibility and the extent of adverse iron-silica interactions. A fundamental study of Fe/silica interactions has been performed using temperature programmed reaction and TEM to provide understanding of how the silica binders influence the activity of Fe catalysts. To understand differences in the reducibility of the iron phase caused by silica, we have set up a temperature programmed reduction facility. TPR in H, as well as in CO was performed of Fe/ SiO, catalysts prepared by impregnation as well as by precipitation. What is unique about these studies is that high resolution TEM was performed on samples removed from the reactor at various stages of reduction. This helps provide direct evidence for the phase changes that are detected by TPR. We have continued the analysis of catalysts received from slurry reactor runs at Texas A&M university (TAMU) and the University of Kentucky Center for Applied Energy Research (CAER) by x-ray diffraction. The purpose of the XRD analysis was to determine the phase composition of catalysts derived from a slurry reaction run using Fe Fischer-Tropsch catalysts. We had previously described how catalyst removed in the hot wax may oxidize to magnetite if the wax is air-exposed. We have now received catalysts from CAER that were removed under a protective inert blanket, and we are in the process of analyzing them, but preliminary work presented here shows very little oxide by XRD. However, the catalyst that was used in these runs at CAER was a different composition than that used in previous runs, so the protective effect of an inert blanket will need further study. Finally, we point out how the interference by the wax can make it difficult in some cases to analyze the phases in a Fe catalyst. Several approaches have been used to remove the interference from the wax and we come to the surprising conclusion that Fe may be present in a working slurry reactor despite the high CO/ H{sub 2} ratio. Further work is underway to corroborate this finding.

  5. A Pipeline Transport Correlation for Slurries with Small but Dense Particles

    SciTech Connect (OSTI)

    Poloski, Adam P.; Etchells, Arthur W.; Chun, Jaehun; Adkins, Harold E.; Casella, Andrew M.; Minette, Michael J.; Yokuda, Satoru T.

    2010-04-01T23:59:59.000Z

    Most correlations/models for minimum transport or critical velocity of slurry were developed for slurries composed of particles greater than ~100-200 ?m diameter with narrow particle-size distributions which is typical of the minerals industry. Many other process industries handle smaller particles. In particular waste slurries at the U.S. Department of Energy's Hanford Site have broad size distributions and significant fractions of smaller particles. Despite the size of these wastes, recent PNNL studies indicate that the small particles might be of sufficient density to pose a significant risk for pipeline deposition and plugging. To allow predictive assessment of deposition of fine dense particles for waste slurry transport at the U.S. DOE Hanford site, a pipeline-transport correlation for critical velocity was developed using a simple power-law between two dimensionless numbers important for slurry transport, the deposition Froude and Archimedes numbers. The correlation accords well with experimental data for slurries with Archimedes numbers <80 and is an adequate pipeline design guide for processing Hanford waste slurry.

  6. ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY

    SciTech Connect (OSTI)

    Bernard A. Toseland

    2002-09-30T23:59:59.000Z

    The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

  7. ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY

    SciTech Connect (OSTI)

    Bernard A. Toseland, Ph.D.

    2000-06-01T23:59:59.000Z

    The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column 0reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

  8. Engineering Development of Slurry Bubble Column Reactor (SBCR) Technology

    SciTech Connect (OSTI)

    Toseland, B.A.

    1998-10-29T23:59:59.000Z

    The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

  9. Double shell slurry low-temperature corrosion tests

    SciTech Connect (OSTI)

    Divine, J.R.; Bowen, W.M.; McPartland, S.A.; Elmore, R.P.; Engel, D.W.

    1983-09-01T23:59:59.000Z

    A series of year-long tests have been completed on potential double shell slurry (DSS) compositions at temperatures up to 100/sup 0/C. These tests have sought data on uniform corrosion, pitting, and stress-corrosion cracking. No indication of the latter two types of corrosion were observed within the test matrix. Corrosion rates after four months were generally below the 1 mpy (25 ..mu..m/y) design limit. By the end of twelve months all results were below this limit and, except for very concentrated mixtures, all were below 0.5 mpy. Prediction equations were generated from a model fitted to the data. The equations provide a rapid means of estimating the corrosion rate for proposed DSS compositions.

  10. ENGINEERING DEVELOPMENT OF SLURRY BUBBLE COLUMN REACTOR (SBCR) TECHNOLOGY

    SciTech Connect (OSTI)

    Bernard A. Toseland, Ph.D.

    1999-03-01T23:59:59.000Z

    The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors. The past three months of research have been focused on two major areas of bubble column hydrodynamics: (1) pressure and temperature effects on gas holdup and (2) region transition using a sparger as a gas distributor.

  11. Method of burning lightly loaded coal-water slurries

    DOE Patents [OSTI]

    Krishna, C.R.

    1984-07-27T23:59:59.000Z

    In a preferred arrangement of the method of the invention, a lightly loaded coal-water slurry, containing in the range of approximately 40% to 52% + 2% by weight coal, is atomized to strip water from coal particles in the mixture. Primary combustor air is forced around the atomized spray in a combustion chamber of a combustor to swirl the air in a helical path through the combustion chamber. A flame is established within the combustion chamber to ignite the stripped coal particles, and flame temperature regulating means are provided for maintaining the flame temperature within a desired predetermined range of temperatures that is effective to produce dry, essentially slag-free ash from the combustion process.

  12. ADVANCED COMPUTATIONAL MODEL FOR THREE-PHASE SLURRY REACTORS

    SciTech Connect (OSTI)

    Goodarz Ahmadi

    2004-10-01T23:59:59.000Z

    In this project, an Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column was developed. The approach used an Eulerian analysis of liquid flows in the bubble column, and made use of the Lagrangian trajectory analysis for the bubbles and particle motions. The bubble-bubble and particle-particle collisions are included the model. The model predictions are compared with the experimental data and good agreement was found An experimental setup for studying two-dimensional bubble columns was developed. The multiphase flow conditions in the bubble column were measured using optical image processing and Particle Image Velocimetry techniques (PIV). A simple shear flow device for bubble motion in a constant shear flow field was also developed. The flow conditions in simple shear flow device were studied using PIV method. Concentration and velocity of particles of different sizes near a wall in a duct flow was also measured. The technique of Phase-Doppler anemometry was used in these studies. An Eulerian volume of fluid (VOF) computational model for the flow condition in the two-dimensional bubble column was also developed. The liquid and bubble motions were analyzed and the results were compared with observed flow patterns in the experimental setup. Solid-fluid mixture flows in ducts and passages at different angle of orientations were also analyzed. The model predictions were compared with the experimental data and good agreement was found. Gravity chute flows of solid-liquid mixtures were also studied. The simulation results were compared with the experimental data and discussed A thermodynamically consistent model for multiphase slurry flows with and without chemical reaction in a state of turbulent motion was developed. The balance laws were obtained and the constitutive laws established.

  13. Slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures

    DOE Patents [OSTI]

    Aines, Roger D.; Bourcier, William L.; Viani, Brian

    2013-01-29T23:59:59.000Z

    A slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures includes the steps of dissolving the gas mixture and carbon dioxide in water providing a gas, carbon dioxide, water mixture; adding a porous solid media to the gas, carbon dioxide, water mixture forming a slurry of gas, carbon dioxide, water, and porous solid media; heating the slurry of gas, carbon dioxide, water, and porous solid media producing steam; and cooling the steam to produce purified water and carbon dioxide.

  14. Kevin Banks | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    friction and wear on machines using engine oils. "What I liked most about my internship experience was really, everything," said Banks. "It gave me a very diverse and...

  15. Development of laboratory and process sensors to monitor particle size distribution of industrial slurries

    SciTech Connect (OSTI)

    Pendse, H.P.

    1992-10-01T23:59:59.000Z

    In this paper we present a novel measurement technique for monitoring particle size distributions of industrial colloidal slurries based on ultrasonic spectroscopy and mathematical deconvolution. An on-line sensor prototype has been developed and tested extensively in laboratory and production settings using mineral pigment slurries. Evaluation to date shows that the sensor is capable of providing particle size distributions, without any assumptions regarding their functional form, over diameters ranging from 0.1 to 100 micrometers in slurries with particle concentrations of 10 to 50 volume percents. The newly developed on-line sensor allows one to obtain particle size distributions of commonly encountered inorganic pigment slurries under industrial processing conditions without dilution.

  16. Coal-water slurry fuel internal combustion engine and method for operating same

    DOE Patents [OSTI]

    McMillian, Michael H. (Fairmont, WV)

    1992-01-01T23:59:59.000Z

    An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot stream of combustion gases discharged from a pilot combustion chamber of a size less than about 10 percent of the total clearance volume of main combustion chamber with the piston at top dead center. The stream of hot combustion gases is provided by injecting less than about 10 percent of the total coal-water slurry charge into the pilot combustion chamber and using a portion of the air from the main combustion chamber that has been heated by the walls defining the pilot combustion chamber as the ignition source for the coal-water slurry injected into the pilot combustion chamber.

  17. Thermal Performance of Microencapsulated Phase Material (MPCM) Slurry in a Coaxial Heat Exchanger

    E-Print Network [OSTI]

    Yu, Kun

    2014-05-08T23:59:59.000Z

    Microencapsulated phase change material (MPCM) slurries and coil heat exchangers had been recently studied separately as enhancers of convective heat transfer processes. Due to the larger apparent heat related to the phase change process...

  18. Spray drying and attrition behavior of iron catalysts for slurry phase Fischer-Tropsch synthesis

    E-Print Network [OSTI]

    Carreto Vazquez, Victor Hugo

    2004-11-15T23:59:59.000Z

    This thesis describes results of a study aimed at developing and evaluating attrition resistant iron catalysts prepared by spray drying technique. These catalysts are intended for Fischer-Tropsch (F-T) synthesis in a slurry bubble column reactor...

  19. Heat Transfer of a Multiple Helical Coil Heat Exchanger Using a Microencapsulated Phase Change Material Slurry 

    E-Print Network [OSTI]

    Gaskill, Travis

    2012-02-14T23:59:59.000Z

    The present study has focused on the use of coil heat exchangers (CHEs) with microencapsulated phase change material (MPCM) slurries to understand if CHEs can yield greater rates of heat transfer. An experimental study was conducted using a...

  20. Identification of active agents for tetrachloroethylene degradation in Portland cement slurry containing ferrous iron

    E-Print Network [OSTI]

    Ko, Sae Bom

    2006-08-16T23:59:59.000Z

    -EDS) were used to identify minerals in chemical mixtures that have high activities. Results indicate that active agents for PCE degradation in Portland cement slurries and in cement extracts might be one of several AFm phases. However, systems without cement...

  1. Heat Transfer of a Multiple Helical Coil Heat Exchanger Using a Microencapsulated Phase Change Material Slurry

    E-Print Network [OSTI]

    Gaskill, Travis

    2012-02-14T23:59:59.000Z

    The present study has focused on the use of coil heat exchangers (CHEs) with microencapsulated phase change material (MPCM) slurries to understand if CHEs can yield greater rates of heat transfer. An experimental study was conducted using a...

  2. South Carolina Conservation Bank Act (South Carolina)

    Broader source: Energy.gov [DOE]

    The South Carolina Conservation Bank Act establishes a state funding source to acquire property interests for environmental preservation purposes. The Bank's activity draws heavily on the earlier...

  3. Fischer-Tropsch synthesis in the slurry phase on iron catalysts

    E-Print Network [OSTI]

    Brown, Russell Floyd

    1986-01-01T23:59:59.000Z

    FISCHER-TROPSCH SYNTHESIS IN THE SLURRY PHASE ON IRON CATALYSTS A Thesis by RUSSELL FLOYD BROWN Submitted to the Graduate College Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1986... Major Subject: Chemical Engineering FISCHER-TROPSCH SYNTHESIS IN THE SLURRY PHASE ON IRON CATALYSTS A Thesis by RUSSELL FLOYD BROWN Approved as to style and content by: Dragomir B. Bukur (Chairman of Committee) A med Gadalla (Member) Michael P...

  4. Rheological study of comingled biomass and coal slurries with hydrothermal pretreatment

    SciTech Connect (OSTI)

    Wei He; Chan S. Park; Joseph M. Norbeck [University of California, Riverside, CA (United States). Bourns College of Engineering Center for Environmental Research and Technology

    2009-09-15T23:59:59.000Z

    Gasification of comingled biomass and coal feedstock is an effective means of reducing the net life cycle greenhouse gas emissions in the coal gasification process while maintaining its inherent benefits of abundance and high-energy density. However, feeding a comingled biomass and coal feedstock into a pressurized gasification reactor poses a technical problem. Conventional dry feeding systems, such as lock hoppers and pressurized pneumatic transport, are complex and operationally expensive. A slurry formation of comingled biomass and coal feedstock can be easily fed into the gasification reactor but, in normal conditions, only allows for a small portion of biomass in the mixture. This is a consequence of the hydroscopic and hydrophilic nature of the biomass. The College of Engineering Center for Environmental Research and Technology (CE-CERT) at the University of California, Riverside, has developed a process producing high solid content biomass-water slurry using a hydrothermal pretreatment process. In this paper, the systematic investigation of the rheological properties (e.g., shear rate, shear stress, and viscosity) of coal-water slurries, biomass-water slurries, and comingled biomass and coal-water slurries is reported. The solid particle size distribution in the slurry and the initial solid/water ratio were investigated to determine the impact on shear rate and viscosity. This was determined using a rotational rheometer. The experimental results show that larger particle size offers better pumpability. The presence of a high percentage of biomass in solid form significantly decreases slurry pumpability. It is also shown that the solid loading of the biomass-water slurry can be increased to approximately 35 wt % with viscosity of less than 0.7 Pa.s after the pretreatment process. The solid loading increased to approximately 45 wt % when the biomass is comingled with coal. 18 refs., 7 figs., 3 tabs.

  5. KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYNTHESIS

    SciTech Connect (OSTI)

    Dragomir B. Bukur; Gilbert F. Froment; Tomasz Olewski

    2006-09-29T23:59:59.000Z

    This report covers the fourth year of a research project conducted under the University Coal Research Program. The overall objective of this project is to develop a comprehensive kinetic model for slurry-phase Fischer-Tropsch synthesis (FTS) employing iron-based catalysts. This model will be validated with experimental data obtained in a stirred-tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict molar flow rates and concentrations of all reactants and major product species (water, carbon dioxide, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the fourth year of the project, an analysis of experimental data collected during the second year of this project was performed. Kinetic parameters were estimated utilizing product distributions from 27 mass balances. During the reporting period two kinetic models were employed: a comprehensive kinetic model of Dr. Li and co-workers (Yang et al., 2003) and a hydrocarbon selectivity model of Van der Laan and Beenackers (1998, 1999) The kinetic model of Yang et al. (2003) has 24 parameters (20 parameters for hydrocarbon formation, and 4 parameters for the water-gas-shift (WGS) reaction). Kinetic parameters for the WGS reaction and FTS synthesis were estimated first separately, and then simultaneously. The estimation of these kinetic parameters employed the Levenberg-Marquardt (LM) method and the trust-region reflective Newton large-scale (LS) method. A genetic algorithm (GA) was incorporated into estimation of parameters for FTS reaction to provide initial estimates of model parameters. All reaction rate constants and activation energies were found to be positive, but at the 95% confidence level the intervals were large. Agreement between predicted and experimental reaction rates has been fair to good. Light hydrocarbons are predicted fairly accurately, whereas the model underpredicts values of higher molecular weight hydrocarbons. Van der Laan and Beenackers hydrocarbon selectivity model provides a very good fit of the experimental data for hydrocarbons up to about C{sub 20}. However, the experimental data shows higher paraffin formation rates in C{sub 12}-C{sub 25} region which is likely due to hydrocracking or other secondary reactions. The model accurately captures the observed experimental trends of decreasing olefin to paraffin ratio and increasing {alpha} (chain growth length) with increase in chain length.

  6. KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYSTHESIS

    SciTech Connect (OSTI)

    Dragomir B. Bukur; Gilbert F. Froment; Tomasz Olewski

    2005-09-29T23:59:59.000Z

    This report covers the third year of this research grant under the University Coal Research program. The overall objective of this project is to develop a comprehensive kinetic model for slurry phase Fischer-Tropsch synthesis (FTS) on iron catalysts. This model will be validated with experimental data obtained in a stirred tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict molar flow rates and concentrations of all reactants and major product species (H{sub 2}O, CO{sub 2}, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the reporting period we utilized experimental data from the STSR, that were obtained during the first two years of the project, to perform vapor-liquid equilibrium (VLE) calculations and estimate kinetic parameters. We used a modified Peng-Robinson (PR) equation of state (EOS) with estimated values of binary interaction coefficients for the VLE calculations. Calculated vapor phase compositions were in excellent agreement with experimental values from the STSR under reaction conditions. Occasional discrepancies (for some of the experimental data) between calculated and experimental values of the liquid phase composition were ascribed to experimental errors. The VLE calculations show that the vapor and the liquid are in thermodynamic equilibrium under reaction conditions. Also, we have successfully applied the Levenberg-Marquardt method (Marquardt, 1963) to estimate parameters of a kinetic model proposed earlier by Lox and Froment (1993b) for FTS on an iron catalyst. This kinetic model is well suited for initial studies where the main goal is to learn techniques for parameter estimation and statistical analysis of estimated values of model parameters. It predicts that the chain growth parameter ({alpha}) and olefin to paraffin ratio are independent of carbon number, whereas our experimental data show that they vary with the carbon number. Predicted molar flow rates of inorganic species, n-paraffins and total olefins were generally not in good agreement with the corresponding experimental values. In the future we'll use kinetic models based on non-constant value of {alpha}.

  7. COMPUTATIONAL AND EXPERIMENTAL MODELING OF SLURRY BUBBLE COLUMN REACTORS

    SciTech Connect (OSTI)

    Paul Lam; Dimitri Gidaspow

    2001-08-01T23:59:59.000Z

    This project is a collaborative effort between the University of Akron, Illinois Institute of Technology and two industries: UOP and Energy International. The tasks involve the development of transient two and three dimensional computer codes for slurry bubble column reactors, optimization, comparison to data, and measurement of input parameters, such as the viscosity and restitution coefficients. To understand turbulence, measurements were done in the riser with 530 micron glass beads using a PIV technique. This report summarizes the measurements and simulations completed as described in details in the attached paper, ''Computational and Experimental Modeling of Three-Phase Slurry-Bubble Column Reactor.'' The Particle Image Velocimetry method described elsewhere (Gidaspow and Huilin, 1996) was used to measure the axial and tangential velocities of the particles. This method was modified with the use of a rotating colored transparent disk. The velocity distributions obtained with this method shows that the distribution is close to Maxwellian. From the velocity measurements the normal and the shear stresses were computed. Also with the use of the CCD camera a technique was developed to measure the solids volume fraction. The granular temperature profile follows the solids volume fraction profile. As predicted by theory, the granular temperature is highest at the center of the tube. The normal stress in the direction of the flow is approximately 10 times larger than that in the tangential direction. The <{nu}{prime}{sub z}{nu}{prime}{sub z}> is lower at the center where the <{nu}{prime}{sub {theta}}{nu}{prime}{sub {theta}}> is higher at that point. The Reynolds shear stress was small, producing a restitution coefficient near unity. The normal Reynolds stress in the direction of flow is large due to the fact that it is produced by the large gradient of velocity in the direction of flow compared to the small gradient in the {theta} and r directions. The kinetic theory gives values of viscosity that agree with our previous measurements (Gidaspow, Wu and Mostofi, 1999). The values of viscosity obtained from pressure drop minus weight of bed measurements agree at the center of the tube.

  8. Co-firing high sulfur coal with refuse derived fuels. Quarterly report, October - December 1996

    SciTech Connect (OSTI)

    Pan, W.-P.; Riley, J.T.; Lloyd, W.G.

    1996-12-01T23:59:59.000Z

    The objectives of this quarter of study on the co-firing of high sulfur coal with refuse derived fuels project were two-fold. First, the effect of S0{sub 2} on the formation of chlorine during combustion processes was examined. To simulate the conditions used in the AFBC system, experiments were conducted in a quartz tube in an electrically heated furnace. The principle analytical technique used for identification of the products from this study was GC/MS. The evolved gas was trapped by an absorbent and analyzed with a GC/MS system. The preliminary results indicate an inhibiting effect of S0{sub 2} on the Deacon Reaction. Secondly, information on the evolution of chlorine, sulfur and organic compounds from coals 95031 and 95011 were studied with the AFBC system. 2 figs., 1 tab.

  9. Process to convert biomass and refuse derived fuel to ethers and/or alcohols

    DOE Patents [OSTI]

    Diebold, J.P.; Scahill, J.W.; Chum, H.L.; Evans, R.J.; Rejai, B.; Bain, R.L.; Overend, R.P.

    1996-04-02T23:59:59.000Z

    A process is described for conversion of a feedstock selected from the group consisting of biomass and refuse derived fuel (RDF) to provide reformulated gasoline components comprising a substantial amount of materials selected from the group consisting of ethers, alcohols, or mixtures thereof, comprising: drying said feedstock; subjecting said dried feedstock to fast pyrolysis using a vortex reactor or other means; catalytically cracking vapors resulting from said pyrolysis using a zeolite catalyst; condensing any aromatic byproduct fraction; catalytically alkylating any benzene present in said vapors after condensation; catalytically oligomerizing any remaining ethylene and propylene to higher olefins; isomerizing said olefins to reactive iso-olefins; and catalytically reacting said iso-olefins with an alcohol to form ethers or with water to form alcohols. 35 figs.

  10. Process to convert biomass and refuse derived fuel to ethers and/or alcohols

    DOE Patents [OSTI]

    Diebold, James P. (Lakewood, CO); Scahill, John W. (Evergreen, CO); Chum, Helena L. (Arvada, CO); Evans, Robert J. (Lakewood, CO); Rejai, Bahman (Lakewood, CO); Bain, Richard L. (Golden, CO); Overend, Ralph P. (Lakewood, CO)

    1996-01-01T23:59:59.000Z

    A process for conversion of a feedstock selected from the group consisting of biomass and refuse derived fuel (RDF) to provide reformulated gasoline components comprising a substantial amount of materials selected from the group consisting of ethers, alcohols, or mixtures thereof, comprising: drying said feedstock; subjecting said dried feedstock to fast pyrolysis using a vortex reactor or other means; catalytically cracking vapors resulting from said pyrolysis using a zeolite catalyst; condensing any aromatic byproduct fraction; catalytically alkylating any benzene present in said vapors after condensation; catalytically oligomerizing any remaining ethylene and propylene to higher olefins; isomerizing said olefins to reactive iso-olefins; and catalytically reacting said iso-olefins with an alcohol to form ethers or with water to form alcohols.

  11. UCSC EMPLOYEE HOUSING APARTMENTS APPLICATION Rental rates include: rent, refuse collection, common area utilities, groundskeeping services, and repairs and

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    UCSC EMPLOYEE HOUSING APARTMENTS APPLICATION Rental rates include: rent, refuse collection, common for current rental rates): 1 bedroom 1 bdrm deluxe 2 bdrm/1 bath 2 bdrm/2 bath) If you are interested in a two rates to eligible employees (see corresponding figures in table below). Please check the box below

  12. A comparative life cycle assessment of diesel and compressed natural gas powered refuse collection vehicles in a Canadian city

    E-Print Network [OSTI]

    Pedersen, Tom

    A comparative life cycle assessment of diesel and compressed natural gas powered refuse collection by the City of Surrey in British Columbia are utilized. c The life cycle energy use is similar for diesel and CNG RCVs. c A 24% reduction of GHG emissions (CO2-equivalent) may be realized by switching from diesel

  13. Economic Feasibility of Converting Landfill Gas to Natural Gas for Use as a Transportation Fuel in Refuse Trucks

    E-Print Network [OSTI]

    Sprague, Stephen M.

    2011-02-22T23:59:59.000Z

    to global climate change, diesel-fueled refuse trucks are one of the most concentrated sources of health-threatening air pollution in most cities. The landfills that they ultimately place their waste in are the second largest source of human-related methane...

  14. Rules governing the classification of coal slurries for filtering centrifuges

    SciTech Connect (OSTI)

    G.Y. Gol'berg; Y.B. Rubinshtein; S.A. Osadchii [Institute for Enrichment of Solid Fuel (IOTT), Moscow Oblast (Russian Federation)

    2008-07-01T23:59:59.000Z

    The feasibility of using filtering centrifuges for the cleaning of a coking-coal slurry is confirmed in principle, and regime operating parameters which ensure the production of a concentrate of conditioned quality are determined on the basis of results of experimental-industrial tests of a new procedure for this operation at the Neryungrinskaya Concentrating Mill. An equation is proposed for determination of solid carry-off in the centrifuge effluent, which completely satisfactorily (with a correlation coefficient of 0.7-0.8) describes the dependence of the parameter in question on the solid content in the centrifuge feed, and on its content of -0.2-mm material. It is noted that special investigations to determine the effect of the speed of the rotor and shape of the particles on the amount of solid carry-off in the centrifuge effluent are required for construction of a model describing the size reduction of solid-phase particles in the effluent during centrifuge filtration.

  15. Coal slurry combustion optimization on single cylinder engine

    SciTech Connect (OSTI)

    Not Available

    1992-09-01T23:59:59.000Z

    Under the sponsorship of the US Department of Energy, Morgantown Energy Technology Center, GE Transportation System has been conducting a proof of concept program to use coal water slurry (CWS) fuel to power a diesel engine locomotive since 1988. As reported earlier [1], a high pressure electronically controlled accumulator injector using a diamond compact insert nozzle was developed for this project. The improved reliability and durability of this new FIE allowed for an improved and more thorough study of combustion of CWS fuel in a diesel engine. It was decided to include a diesel pilot fuel injector in the combustion system mainly due to engine start and low load operation needs. BKM, Inc. of San Diego, CA was contracted to develop the electronic diesel fuel pilot/starting FIE for the research engine. As a result, the experimental combustion study was very much facilitated due to the ability of changing pilot/CWS injection timings and quantities without having to stop the engine. Other parameters studied included combustion chamber configuration (by changing CWS fuel injector nozzle hole number/shape/angle), as well as injection pressure. The initial phase of this combustion study is now complete. The results have been adopted into the design of a 12 cylinder engine FIE, to be tested in 1992. This paper summarizes the main findings of this study.

  16. Introduction Operations Management of Blood Banking Systems Blood Banking Systems Network Design Supply Chain Network

    E-Print Network [OSTI]

    Nagurney, Anna

    Introduction Operations Management of Blood Banking Systems Blood Banking Systems Network Design Supply Chain Network Operations Management and Design of A Sustainable Blood Banking System Amir Masoumi of Massachusetts Amherst #12;Introduction Operations Management of Blood Banking Systems Blood Banking Systems

  17. The use of FBC wastes in the reclamation of coal slurry solids. Technical report, December 1, 1991--February 29, 1992

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.

    1992-08-01T23:59:59.000Z

    The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in Illinois are mixed with coal slurry solids (CSS) from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids.

  18. Blood Banking in Living Droplets

    E-Print Network [OSTI]

    Samot, Josh

    Blood banking has a broad public health impact influencing millions of lives daily. It could potentially benefit from emerging biopreservation technologies. However, although vitrification has shown advantages over traditional ...

  19. SCOPING STUDIES TO DEVELOP A METHOD TO DETERMINE PARTICLE SIZE IN SIMULANT SLUDGE SLURRIES BY SIEVING

    SciTech Connect (OSTI)

    DAMON, CLICK

    2005-02-07T23:59:59.000Z

    A physical separation method (i.e. sieving) was investigated to determine particle size distribution in non-radioactive sludge slurry simulants with the goal of implementation into the SRNL (Savannah River National Laboratory) shielded cells for use with radioactive sludge slurries. The investigation included obtaining the necessary experimental equipment, developing accessory equipment for use with the sieve shaker (to be able to sieve simulant slurries with aqueous solutions), sieving three different simulant slurries through a number of sieves and determining the particle size distribution gravimetrically, and developing a sufficient cleaning protocol of the sieves for re-use. The experimental protocol involved successive sieving of a NIST standard (to check the particle size retention of the sieves) and three non-radioactive slurry simulants (Batch 3 Tank 40 Test 3, Tank 40 Drum 3 and CETL Sludge Batch 2, which had been previously characterized by Microtrac analysis) through smaller and smaller sieves (150 microns x 5 microns) via use of the wet sieving system or by hand. For each of the three slurries, duplicate experiments were carried out using filtered supernate and DI water (to check the accuracy of the method versus Microtrac data) to sieve the slurry. Particle size determinations using the wet sieving system with DI water agree well with Microtrac data on a volume basis and in some cases the sieving data may be more accurate particularly if the material sieved had large particles. A correction factor had to be applied to data obtained from experiments done with supernate due to the dissolved solids which dried upon the sieves in the drying stage of the experiments. Upon subtraction of the correction factors, the experimental results were very similar to those obtained with DI water. It should be noted that approximately 250 mL of each of three simulant slurries was necessary to have enough filtered supernate available to carry out the experiments. The experimental results for the slurries are below with Microtrac data. The design of the experimental equipment was sufficient initially, but some pieces of the equipment began failing over time due to the caustic nature of the supernate and the vibrations from the sieve shaker. It is therefore recommended that upgrades to the experimental equipment be done before implementation into the SRNL shielded cells. Theses upgrades include using manipulator friendly connections, changing brass parts for stainless steel parts, using Teflon rather than polycarbonate, and possibly a change of pumps used to re-circulate the sieving fluid.

  20. Coal liquefaction process utilizing coal/CO.sub.2 slurry feedstream

    DOE Patents [OSTI]

    Comolli, Alfred G. (Yardley, PA); McLean, Joseph B. (S. Somerville, NJ)

    1989-01-01T23:59:59.000Z

    A coal hydrogenation and liquefaction process in which particulate coal feed is pressurized to an intermediate pressure of at least 500 psig and slurried with CO.sub.2 liquid to provide a flowable coal/CO.sub.2 slurry feedstream, which is further pressurized to at least 1000 psig and fed into a catalytic reactor. The coal particle size is 50-375 mesh (U.S. Sieve Series) and provides 50-80 W % coal in the coal/CO.sub.2 slurry feedstream. Catalytic reaction conditions are maintained at 650.degree.-850.degree. F. temperature, 1000-4000 psig hydrogen partial pressure and coal feed rate of 10-100 lb coal/hr ft.sup.3 reactor volume to produce hydrocarbon gas and liquid products. The hydrogen and CO.sub.2 are recovered from the reactor effluent gaseous fraction, hydrogen is recycled to the catalytic reactor, and CO.sub.2 is liquefied and recycled to the coal slurrying step. If desired, two catalytic reaction stages close coupled together in series relation can be used. The process advantageously minimizes the recycle and processing of excess hydrocarbon liquid previously needed for slurrying the coal feed to the reactor(s).

  1. The effect of particle-particle interaction forces on the flow properties of silica slurries

    SciTech Connect (OSTI)

    Harbottle, David; Fairweather, Michael; Biggs, Simon [Institute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering, University of Leeds, UK, LS2 9JT (United Kingdom); Rhodes, Dominic [Nexia Solutions, Sellafield, Cumbria (United Kingdom)

    2007-07-01T23:59:59.000Z

    Preliminary work has been completed to investigate the effect of particle-particle interaction forces on the flow properties of silica slurries. Classically hydro-transport studies have focused on the flow of coarse granular material in Newtonian fluids. However, with current economical and environmental pressures, the need to increase solid loadings in pipe flow has lead to studies that examine non-Newtonian fluid dynamics. The flow characteristics of non-Newtonian slurries can be greatly influenced through controlling the solution chemistry. Here we present data on an 'ideal' slurry where the particle size and shape is controlled together with the solution chemistry. We have investigated the effect of adsorbed cations on the stability of a suspension, the packing nature of a sediment and the frictional forces to be overcome during re-slurrying. A significant change in the criteria assessed was observed as the electrolyte concentration was increased from 0.1 mM to 1 M. In relation to industrial processes, such delicate control of the slurry chemistry can greatly influence the optimum operating conditions of non-Newtonian pipe flows. (authors)

  2. SUCCESSES AND EMERGING ISSUES IN SIMULATING THE MIXING BEHAVIOR OF LIQUID-PARTICLE NUCLEAR WASTE SLURRIES AT THE SAVANNAH RIVER SITE - 211B

    SciTech Connect (OSTI)

    Koopman, D.; Pickenheim, B.; Lambert, D.; Stone, M.

    2009-09-02T23:59:59.000Z

    Aqueous radioactive high-level waste slurries are combined during processing steps that ultimately produce a stable borosilicate glass waste form. Chemically treated waste slurries are combined with each other and with glass frit-water slurries to produce the melter feed. Understanding the evolution of the rheological properties of the slurries is an important aspect of removing and treating the stored waste. To a first approximation, combinations of colloidal waste slurry with {approx}0.1-mm mean diameter glass frit or glass beads act in an analogous matter to slurries of spherical beads in Newtonian liquids. The non-Newtonian rheological properties of the waste slurries without frit, however, add complexity to the hydrodynamic analysis. The use of shear rate dependent apparent viscosities with the modified Einstein equation was used to model the rheological properties of aqueous frit-waste slurries.

  3. Carbon black: A low cost colloidal additive for controlling gas-migration in cement slurries

    SciTech Connect (OSTI)

    Calloni, G.; Moroni, N.; Miano, F.

    1995-11-01T23:59:59.000Z

    The effect of different additives on the permeability of cement slurries to formation gas has been studied with the aid of a gas flow apparatus. The performance of two commercial additives (polymer latex and silica fume) has been compared to that of a novel additive (carbon black) that has been developed in the authors laboratories with the aim of simplifying the cement slurry composition and reducing field operational costs. Data on the thickening time, fluid loss, rheology and compressive strength are also presented to provide a clear picture of the potential of carbon black as a substitute for silica fume and polymer latex in some field applications. Finally, the paper describes the results of a field application using carbon black as a gas-block additive in the cement slurry.

  4. Utilization of solid wastes from the gasification of coal-water slurries

    SciTech Connect (OSTI)

    M.Y. Shpirt; N.P. Goryunova [Institute for Fossil Fuels, Moscow (Russian Federation)

    2009-07-01T23:59:59.000Z

    It was found that only fly and bottom ashes are the solid wastes of water-coal slurry gasification in a direct-flow gasifier. The yields and chemical compositions of fly and bottom ashes obtained after the gasification of water-coal slurries prepared using brown (B) and long-flame (D) coals from the Berezovskii and Mokhovskii strip mines (Kansk-Achinsk and Kuznetsk Basins, respectively) were characterized. Based on an analysis of currently available information, the areas of utilization of fly and bottom ashes after water-coal slurry gasification with dry ash removal were summarized. The use of these wastes in the construction of high-ways and earthwork structures (for the parent coals of B and D grades) and in the manufacture of ash concrete (for the parent coal of D grade) is most promising.

  5. Geochemistry of a reclaimed coal slurry impoundment. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M. [Illinois State Geological Survey, Champaign, IL (United States)

    1994-06-01T23:59:59.000Z

    The highly alkaline residue from the fluidized-bed combustion (FBC) of coal may be an environmentally acceptable material for use in neutralizing acid produced by the oxidation of pyrite in coal slurry solids (CSS). Previous research indicated that FBC residues in mixtures with pyrite-rich CSS neutralized the acid produced by or attenuated the oxidation of pyrite in CSS. In the present research we intend to collect cores of unconsolidation material and sample pore gases from a reclaimed coal slurry impoundment. The data gathered will provide background information necessary for the development of a predictive computer model of the generation and migration of acid in a reclaimed coal slurry impoundment. The conceptual model for the oxidation of pyrite at near-neutral conditions has been revised. The model is being built around the method of Morel and Hering (1993) and Westall (1986).

  6. Geochemistry of a reclaimed coal slurry impoundment. [Quarterly] technical report, September 1, 1993--November 30, 1993

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M.

    1993-12-31T23:59:59.000Z

    The highly alkaline residue from the fluidized-bed combustion (FBC) of coal may be an environmentally acceptable material for use in neutralizing acid produced by the oxidation of pyrite in coal slurry solids (CSS). Previous research indicated that FBC residues in mixtures with pyrite-rich CSS neutralized the acid produced by or attenuated the oxidation of pyrite in CSS. In the present research we intend to collect cores of unconsolidated material and sample pore gases from a reclaimed coal slurry impoundment. The data gathered will provide background information necessary for the development of a predictive computer model of the generation and migration of acid in a reclaimed coal slurry impoundment. A conceptual model for the oxidation of pyrite at near-neutral conditions is being developed. This report includes our first approximation of the model. The model is subject to change.

  7. Kinetic Modeling of Slurry Propylene Polymerization using rac-Et(Ind)2ZrCl2/MAO

    E-Print Network [OSTI]

    Kinetic Modeling of Slurry Propylene Polymerization using rac-Et(Ind)2ZrCl2/MAO Ramon A. Gonzalez in Wiley InterScience (www.interscience.wiley.com). The slurry homopolymerization of propylene catalyzed using a systematic optimization strategy. The model predicts that the insertion of the first propylene

  8. Rheological properties of water-coal slurries based on brown coal in the presence of sodium lignosulfonates and alkali

    SciTech Connect (OSTI)

    D.P. Savitskii; A.S. Makarov; V.A. Zavgorodnii [National Academy of Sciences of Ukraine, Kiev (Ukraine). Dumanskii Institute of Colloid and Water Chemistry

    2009-07-01T23:59:59.000Z

    The effect of the oxidized surface of brown coal on the structural and rheological properties of water-coal slurries was found. The kinetics of structure formation processes in water-coal slurries based on as-received and oxidized brown coal was studied. The effect of lignosulfonate and alkali additives on the samples of brown coal was considered.

  9. The use of FBC wastes in the reclamation of coal slurry solids

    SciTech Connect (OSTI)

    Dreher, G.B.

    1991-01-01T23:59:59.000Z

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to SO{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4}{center dot}2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in the Illinois are mixed with coal slurry solids from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The ultimate of this and future research is to determine whether mixed FBC waste and coal slurry solids can be slurry pond reclamation.

  10. Determinants of efficiency in the provision of municipal street-cleaning and refuse collection services

    SciTech Connect (OSTI)

    Benito-Lopez, Bernardino, E-mail: benitobl@um.es [University of Murcia (Spain); Rocio Moreno-Enguix, Maria del, E-mail: mrmoreno@um.es [University of Murcia (Spain); Solana-Ibanez, Jose, E-mail: jsolana@um.es [University of Murcia (Spain)

    2011-06-15T23:59:59.000Z

    Effective waste management systems can make critical contributions to public health, environmental sustainability and economic development. The challenge affects every person and institution in society, and measures cannot be undertaken without data collection and a quantitative analysis approach. In this paper, the two-stage double bootstrap procedure of is used to estimate the efficiency determinants of Spanish local entities in the provision of public street-cleaning and refuse collection services. The purpose is to identify factors that influence efficiency. The final sample comprised 1072 municipalities. In the first stage, robust efficiency estimates are obtained with Data Envelopment Analysis (DEA). We apply the second stage, based on a truncated-regression, to estimate the effect of a group of environmental factors on DEA estimates. The results show the existence of a significant relation between efficiency and all the variables analysed (per capita income, urban population density, the comparative index of the importance of tourism and that of the whole economic activity). We have also considered the influence of a dummy categorical variable - the political sign of the governing party - on the efficient provision of the services under study. The results from the methodology proposed show that municipalities governed by progressive parties are more efficient.

  11. Co-firing high sulfur coal with refuse derived fuels. Technical progress report No. 6, January--March 1996

    SciTech Connect (OSTI)

    Pan, W.P.; Riley, J.T.; Lloyd, W.G.

    1996-02-29T23:59:59.000Z

    The objectives for this quarter of study on the co-firing of high sulfur coals with refuse derived fuels were two-fold. First, the effects of different experimental parameters such as temperature, flow rates and reaction times on the formation of chlorinated organic compounds were studied using the tubular furnace as a reactor followed by GC/MS analysis. Secondly, the effect of fuel/air ratio on the flue gas composition and combustion efficiency were studied with the AFBC system.

  12. Fischer-Tropsch synthesis over a fused iron catalyst in a three phase slurry reactor

    E-Print Network [OSTI]

    Buck, Henry J

    1986-01-01T23:59:59.000Z

    FISCHER-TROPSCH SWi'THESIS OVER A FUSED IRON CATALYST IN A THREE PHASE SLURRY REACTOR A Thesis by HENRY J. BUCK III Submitted to the Graduate College at Texas ASM University in partial fulfillment of the requirements for the degree of MASTER... an (Head of Department) G. Anthony (Member) M. T. Longn er (Member) May ]986 ABSTRACT Fischer-Tropsch Synthesis Over Fused Iron Catalyst In a Three Phase Slurry Reactor (May 1986) Henry J. Buck III, B. S. , Old Dominion University; M. S. , Texas...

  13. Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid

    DOE Patents [OSTI]

    Ackerman, Carl D. (Olympia, WA)

    1983-03-29T23:59:59.000Z

    An apparatus for and method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus includes a pump 12, a remote check valve 14 and a chamber 16 between and in fluid communication with the pump 12 and check valve 14 through conduits 18,20. Pump 12 exerts pressure on the motive fluid and thereby on the slurry through a concentration gradient of coal solids within chamber 16 to alternately discharge slurry under pressure from the outlet port of check valve 14 and draw slurry in through the inlet port of check valve 14.

  14. Information externality, bank structure, and growth

    E-Print Network [OSTI]

    Doh, Bo-Eun

    2004-09-30T23:59:59.000Z

    This dissertation addresses the question of whether a monopolistic banking system can lead to a higher steady state level of capital stock. Specifically, this research analyzes the comparative advantage of a monopoly banking system. By doing that...

  15. E-Banking Diffusion in the Jordanian Banking Services Sector: An Empirical Analysis of Key Factors

    E-Print Network [OSTI]

    E-Banking Diffusion in the Jordanian Banking Services Sector: An Empirical Analysis of Key Factors influence e- banking adoption in Jordanian banks. This article added some constructs to (TOE) framework, availability of online revenues, competition intensity or pressure, and regulatory support environment) while e

  16. Competition and Collaboration in Mobile Banking: A Stakeholder Analysis

    E-Print Network [OSTI]

    Kurnia, Sherah

    of mobile technologies offers an opportunity for mobile carriers and banks to offer mobile banking services technology-aware customers. For banks, mobile banking is the next sequence after Internet banking. Thanks to the development of mobile technology which enables the delivery of banking services via mobile devices, mobile

  17. A preliminary evaluation of a combined tire- and refuse-derived fuel (TDF-RDF)

    SciTech Connect (OSTI)

    Stessel, R.I.; Amari, T.; Themelis, N.J.; Wearnick, I.K.

    1999-07-01T23:59:59.000Z

    In dense urban areas of the US, it is now becoming clear that waste management is far from economically-optimum. Even with the popularity of inexpensive land disposal, hauling and recycling costs are driving up the average waste bill. An historic option has been refuse-derived fuel, or RDF. Difficulties included low energy content and difficulty obtaining uniformity. Today, many resource-recovery technologies used in RDF are finding their way into materials recovery facilities (MRFs), some of which are reviving the automated processing of waste. Any MRF, automated or not, will have residue streams. Currently, one of the most significant problems is waste tires. Local options are difficult to locate in dense urban areas. As fuels, tires typically have energy contents considerably above those for which most solid-fuel combustors are designed, leading to thermal imbalances and various forms of failure. This paper suggests a new fuel that can be either co-fired with coal, or used in its own right in a combustor primarily designed for coal: TDF-RDF. A preliminary examination is undertaken of thermal and emissions characteristics, and possible costs for a few applications of the fuel. Immediately, TDF is already cleaner-burning than many coals, even in sulfur emissions. RDF has been widely-regarded as being similarly cleanly. Posited MRF residue streams should be still cleaner, and more consistent, than RDF. Overall, there is quite a potential for developing a fuel that would allow old coal powerplants in historic urban centers to be better neighbors, while helping with a few problems in municipal waste management.

  18. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch

    SciTech Connect (OSTI)

    Marcelin, G.

    1992-09-24T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: addition of i-butylene during the formation of methanol and/or higher alcohols directly from CO and H[sub 2] during slurry-phase Fischer-Tropsch; addition of i-butylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst; and addition of methanol to slurry phase FT synthesis making iso-olefins. During the seventh quarter we continued the shake down experiments for the SBCR and conducted an initial aborted run. We have also re-started experiments on Scheme 1, i.e., the addition of iso-butylene during CO hydrogenation. Using a dual bed arrangement, we have demonstrated the synthesis of MTBE from syngas and iso-butylene.

  19. Microwave applicator for in-drum processing of radioactive waste slurry

    DOE Patents [OSTI]

    White, Terry L. (Oak Ridge, TN)

    1994-01-01T23:59:59.000Z

    A microwave applicator for processing of radioactive waste slurry uses a waveguide network which splits an input microwave of TE.sub.10 rectangular mode to TE.sub.01 circular mode. A cylindrical body has four openings, each receiving 1/4 of the power input. The waveguide network includes a plurality of splitters to effect the 1/4 divisions of power.

  20. Liquid CO{sub 2}/Coal Slurry for Feeding Low Rank Coal to Gasifiers

    SciTech Connect (OSTI)

    Marasigan, Jose; Goldstein, Harvey; Dooher, John

    2013-09-30T23:59:59.000Z

    This study investigates the practicality of using a liquid CO{sub 2}/coal slurry preparation and feed system for the E-Gas™ gasifier in an integrated gasification combined cycle (IGCC) electric power generation plant configuration. Liquid CO{sub 2} has several property differences from water that make it attractive for the coal slurries used in coal gasification-based power plants. First, the viscosity of liquid CO{sub 2} is much lower than water. This means it should take less energy to pump liquid CO{sub 2} through a pipe compared to water. This also means that a higher solids concentration can be fed to the gasifier, which should decrease the heat requirement needed to vaporize the slurry. Second, the heat of vaporization of liquid CO{sub 2} is about 80% lower than water. This means that less heat from the gasification reactions is needed to vaporize the slurry. This should result in less oxygen needed to achieve a given gasifier temperature. And third, the surface tension of liquid CO{sub 2} is about 2 orders of magnitude lower than water, which should result in finer atomization of the liquid CO{sub 2} slurry, faster reaction times between the oxygen and coal particles, and better carbon conversion at the same gasifier temperature. EPRI and others have recognized the potential that liquid CO{sub 2} has in improving the performance of an IGCC plant and have previously conducted systemslevel analyses to evaluate this concept. These past studies have shown that a significant increase in IGCC performance can be achieved with liquid CO{sub 2} over water with certain gasifiers. Although these previous analyses had produced some positive results, they were still based on various assumptions for liquid CO{sub 2}/coal slurry properties. This low-rank coal study extends the existing knowledge base to evaluate the liquid CO{sub 2}/coal slurry concept on an E-Gas™-based IGCC plant with full 90% CO{sub 2} capture. The overall objective is to determine if this technology could be used to reduce the cost and improve the efficiency of IGCC plants. The study goes beyond the systems-level analyses and initial lab work that formed the bases of previous studies and includes the following tasks: performing laboratory tests to quantify slurry properties; developing an engineering design of a liquid CO{sub 2} slurry preparation and feed system; conducting a full IGCC plant techno-economic analysis for Powder River Basin (PRB) coal and North Dakota lignite in both water and liquid CO{sub 2} slurries; and identifying a technology development plan to continue the due diligence to conduct a comprehensive evaluation of this technology. The initial task included rheology tests and slurry data analyses that would increase the knowledge and understanding of maximum solids loading capability for both PRB and lignite. Higher coal concentrations have been verified in liquid CO{sub 2} over water slurries, and a coal concentration of 75% by weight in liquid CO{sub 2} has been estimated to be achievable in a commercial application. In addition, lower slurry viscosities have been verified in liquid CO{sub 2} at the same solids loading, where the liquid CO{sub 2}/coal slurry viscosity has been measured to be about a factor of 10 lower than the comparable water slurry and estimated to be less than 100 centipoise in a commercial application. In the following task, an engineering design of a liquid CO{sub 2}/coal slurry preparation and mixing system has been developed for both a batch and continuous system. The capital cost of the design has also been estimated so that it could be used in the economic analysis. An industry search and survey has been conducted to determine if essential components required to construct the feed system are available from commercial sources or if targeted R&D efforts are required. The search and survey concluded that commercial sources are available for selected components that comprise both the batch and continuous type systems. During normal operation, the fuel exits the bottom of the coal silo and is fed to a rod mill fo

  1. Dewatering Fly Ash Slurries Using Geotextile Containers M. E. Kutay1

    E-Print Network [OSTI]

    Aydilek, Ahmet

    during its settlement. However, the hydraulic compatibility of a geotextile with the contact soil is also for ensuring hydraulic compatibility is that the geotextile should not be clogged during the dewatering process ash slurries. A testing program that included filter press and hanging bag tests was implemented

  2. Development and process evaluation of improved Fischer-Tropsch slurry catalysts. Final report

    SciTech Connect (OSTI)

    Bukur, D.B.; Mukesh, D.; Patel, S.A.; Zimmerman, W.H.; Rosynek, M.P. [Texas A& M Univ., College Station, TX (United States); Kellogg, L.J. [Air Products and Chemicals, Inc., Allentown, PA (United States)

    1990-04-01T23:59:59.000Z

    This report describes results of a study aimed at developing and evaluating improved catalysts for a slurry Fischer-Tropsch (FT) process for converting synthesis gas to high quality transportation fuels (gasoline and distillate). The improvements in catalyst performance were sought by studying effects of pretreatment conditions, promoters and binders/supports. A total of 20 different, iron based, catalysts were evaluated in 58 fixed bed reactor tests and 10 slurry reactor tests. The major accomplishments and conclusions are summarized below. The pretreatment conditions (temperature, duration and the nature of reducing gas) have significant effect on catalyst performance (activity, selectivity and stability) during Fischer-Tropsch synthesis. One of precipitated unsupported catalysts had hydrocarbon selectivity similar to Mobil`s I-B catalyst in high wax mode operation, and had not experienced any loss in activity during 460 hours of testing under variable process conditions in a slurry reactor. The effect of promoters (copper and potassium) on catalyst performance during FT synthesis has been studied in a systematic way. It was found that potassium promotion increases activities of the FT and water-gas-shift (WGS) reactions, the average molecular weight of hydrocarbon products, and suppresses the olefin hydrogenation and isomerization reactions. The addition of binders/supports (silica or alumina) to precipitated Fe/Cu/K catalysts, decreased their activity but improved their stability and hydrocarbon selectivity. The performance of catalysts of this type was very promising and additional studies are recommended to evaluate their potential for use in commercial slurry reactors.

  3. Transportation of the MOAB Uranium Mill Tailings to White Mesa Mill by Slurry Pipeline

    SciTech Connect (OSTI)

    Hochstein, R. F.; Warner, R.; Wetz, T. V.

    2003-02-26T23:59:59.000Z

    The Moab uranium mill tailings pile, located at the former Atlas Minerals Corporation site approximately three miles north of Moab, Utah, is now under the control of the US Department of Energy (''DOE''). The location of the tailings pile adjacent to the Colorado River, and the ongoing contamination of groundwater and seepage of pollutants into the river, have lead to the investigation, as part of the final site remediation program, of alternatives to relocate the tailings to a qualified permanent disposal site. This paper will describe the approach being taken by the team formed between International Uranium (USA) Corporation (''IUC'') and Washington Group International (''WGINT'') to develop an innovative technical proposal to relocate the Moab tailings to IUC's White Mesa Mill south of Blanding, Utah. The proposed approach for relocating the tailings involves using a slurry pipeline to transport the tailings to the White Mesa Mill. The White Mesa Mill is a fully licensed, active uranium mill site that is uniquely suited for permanent disposal of the Moab tailings. The tailings slurry would be dewatered at the White Mesa Mill, the slurry water would be recycled to the Moab site for reuse in slurry makeup, and the ''dry'' tailings would be permanently disposed of in an approved below grade cell at the mill site.

  4. Elimination Of Catalytic Hydrogen Generation In Defense Waste Processing Facility Slurries

    SciTech Connect (OSTI)

    Koopman, D. C.

    2013-01-22T23:59:59.000Z

    Based on lab-scale simulations of Defense Waste Processing Facility (DWPF) slurry chemistry, the addition of sodium nitrite and sodium hydroxide to waste slurries at concentrations sufficient to take the aqueous phase into the alkaline region (pH > 7) with approximately 500 mg nitrite ion/kg slurry (assuming <25 wt% total solids, or equivalently 2,000 mg nitrite/kg total solids) is sufficient to effectively deactivate the noble metal catalysts at temperatures between room temperature and boiling. This is a potential strategy for eliminating catalytic hydrogen generation from the list of concerns for sludge carried over into the DWPF Slurry Mix Evaporator Condensate Tank (SMECT) or Recycle Collection Tank (RCT). These conclusions are drawn in large part from the various phases of the DWPF catalytic hydrogen generation program conducted between 2005 and 2009. The findings could apply to various situations, including a solids carry-over from either the Sludge Receipt and Adjustment Tank (SRAT) or Slurry Mix Evaporator (SME) into the SMECT with subsequent transfer to the RCT, as well as a spill of formic acid into the sump system and transfer into an RCT that already contains sludge solids. There are other potential mitigating factors for the SMECT and RCT, since these vessels are typically operated at temperatures close to the minimum temperatures that catalytic hydrogen has been observed to occur in either the SRAT or SME (pure slurry case), and these vessels are also likely to be considerably more dilute in both noble metals and formate ion (the two essential components to catalytic hydrogen generation) than the two primary process vessels. Rhodium certainly, and ruthenium likely, are present as metal-ligand complexes that are favored under certain concentrations of the surrounding species. Therefore, in the SMECT or RCT, where a small volume of SRAT or SME material would be significantly diluted, conditions would be less optimal for forming or sustaining the catalytic ligand species. Such conditions are likely to adversely impact the ability of the transferred mass to produce hydrogen at the same rate (per unit mass SRAT or SME slurry) as in the SRAT or SME vessels.

  5. Chris Banks Director of Library

    E-Print Network [OSTI]

    Chris Banks Director of Library Services Frances Boyle Assistant Director Library Academic Services Assistant to the Library Leadership Team Susan Howard Assistant Director Library Resource and Innovation Chart 1 Library Leadership Team Ruth Newton Staff Resource Coordinator (0.6 fte) Level 3b #12;Chris

  6. Innovative process for concentration of fine particle coal slurries. Technical report, March 1- May 31, 1996

    SciTech Connect (OSTI)

    Rajchel, M.; Ehrlinger, H.P.; Fonseca, A.; Mauer, R.

    1996-12-31T23:59:59.000Z

    Williams Technologies, Inc. And Clarke Rajchel Engineering are developing a technology (patent pending) to produce high quality coal water slurries from preparation plant fine coal streams. The WTI/CRE technology uses the novel implementation of high-shear cross-flow separation which replaces and enhances conventional thickening processes by surpassing normally achievable solids loadings. Dilute ultra-fine (minus 100 mesh) solids slurries can be, concentrated to greater than 60 weight percent and re-mixed, as required, with de-watered coarser fractions to produce pumpable, heavily loaded coal slurries. The permeate (filtrate) resulting from this process has been demonstrated to be crystal clear and totally free of suspended solids. The primary objective of this project was to demonstrate the WTI/CRE coal slurry production process technology at the pilot scale. The technology can enable Illinois coal producers and users to realize significant cost and environmental benefits both by eliminating fine coal waste disposal problems and producing an IGCC fuel to produce power which meets all foreseeable clean air standards. Testing was also directed at concentrating mine tailings material to produce a tailings paste which can be mine-back-filled, eliminating the need for tailings ponds. During the grant period, a laboratory-scale test apparatus (up to 3 GPM feed rate) was assembled and operated to demonstrate process performance over a range of feed temperatures and pressures. A dilute coal/water slurry from Consol, Inc.`s Rend Lake Preparation Plant was concentrated using the process to a maximum recorded solids loading of 61.9% solids by weight. Analytical results from the concentrate were evaluated by Destec Energy for suitability as an IGCC fuel.

  7. Geochemistry of a reclaimed coal slurry impoundment. Technical report, 1 March--31 May 1994

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M. [Illinois State Geological Survey, Champaign, IL (United States)

    1994-09-01T23:59:59.000Z

    The highly alkaline residue from the fluidized-bed combustion (FBC) of coal may be an environmentally acceptable material for use in neutralizing acid produced by the oxidation of pyrite in coal slurry solids (CSS). Previous research indicated that FBC residues in mixtures with pyrite-rich CSS neutralized the acid produced by or attenuated the oxidation of pyrite in CSS. The intent in this research was to collect cores of unconsolidated material and sample pore gases from a reclaimed coal slurry impoundment. The gas composition data would provide background data for the development of a predictive computer model of the generation and migration of acid in a reclaimed coal slurry impoundment. Cores of coal slurry were collected on May 16--18, 1994 from four holes in a reclaimed coal slurry impoundment. There was no unsaturated zone in the coal, so no gas samples can be collected from that zone. The authors installed three samplers in one hole. Two of the samplers are in the saturated zone (in the coal) and the third one might be in the unsaturated zone, but in the soil cover above the coal particles. They plan to collect samples in about mid-June. The water and solids from the cores are being separated for chemical analysis. The computer model for the oxidation of pyrite at near-neutral conditions is being developed. The first portion of code, the calculation of thermodynamic equilibrium without consideration of ionic strength, has been written. The methods of Morel and Hering (1993) and Westall (1986) are the basis for the model, however, the model does not follow the matrix solution used by them. Rather, an algebraic solution is used. A matrix similar to the one reported last quarter was used to formulate mass balance and material balance equations.

  8. Trends in agricultural lending by commercial banks 1964-1984

    E-Print Network [OSTI]

    DeBerry, David Kendall

    1986-01-01T23:59:59.000Z

    Outstanding Held by Branch verses Unit Banks, 1978-1984 21 9. Number of Branch verses Unit Banks, 1978-1984 22 10. Number of Banks Located in Rural Verses Urban Areas, 1964-1984 25 11. Share of Total Bank Farm Loans Outstanding Held by Banks Located... in Rural verses Urban Areas, 1964-1984 26 12. Share of Total Bank Farm Loans Outstanding Held by Ag Banks verses NonAg Banks, 1964-1984 29 13. Share of Total Bank Farm Loans Outstanding Held by Each NonAg Group verses all Ag Banks, 1964-1984 31 14...

  9. Coal-firing sulfur coal with refuse derived fuels. Technical progress report {number_sign}7, [April--June 1996

    SciTech Connect (OSTI)

    Pan, Wei-Ping, Riley, J.T.; Lloyd, W.G.

    1996-05-31T23:59:59.000Z

    The objectives for this quarter of study on the co-firing of high sulfur coal with refuse derived fuels project were two-fold. First, the organic compounds tentatively identified as combustion products in the previous report were confirmed by comparing retention times with pure samples. Secondly, a reduced amount of unburned carbon in the fly ash and an oxygen concentration at about 3--6% in the flue gases were achieved by the addition of removable heat exchange tubes in the AFBC system.

  10. Research and Development of a New Silica-Alumina Based Cementitious Material Largely Using Coal Refuse for Mine Backfill, Mine Sealing and Waste Disposal Stabilization

    SciTech Connect (OSTI)

    Henghu Sun; Yuan Yao

    2012-06-29T23:59:59.000Z

    Coal refuse and coal combustion byproducts as industrial solid waste stockpiles have become great threats to the environment. To activate coal refuse is one practical solution to recycle this huge amount of solid waste as substitute for Ordinary Portland Cement (OPC). The central goal of this project is to investigate and develop a new silica-alumina based cementitious material largely using coal refuse as a constituent that will be ideal for durable construction, mine backfill, mine sealing and waste disposal stabilization applications. This new material is an environment-friendly alternative to Ordinary Portland Cement. The main constituents of the new material are coal refuse and other coal wastes including coal sludge and coal combustion products (CCPs). Compared with conventional cement production, successful development of this new technology could potentially save energy and reduce greenhouse gas emissions, recycle vast amount of coal wastes, and significantly reduce production cost. A systematic research has been conducted to seek for an optimal solution for enhancing pozzolanic reactivity of the relatively inert solid waste-coal refuse in order to improve the utilization efficiency and economic benefit as a construction and building material.

  11. A study of ignition and combustion characteristics of isolated coal water slurry droplet using digital image processing technique 

    E-Print Network [OSTI]

    Bhadra, Tanmoy

    1998-01-01T23:59:59.000Z

    diameter and ambient oxygen concentrations. Simplified phenomen ological type models are presented in order to determine the number of particles. interparticle spacing and density of coal water slurry droplet. Finally qualitative relations between ignition...

  12. Characterization of coal-water slurry fuel sprays generated by an electronically-controlled accumulator fuel injector

    E-Print Network [OSTI]

    Payne, Stephen Ellis

    1993-01-01T23:59:59.000Z

    Experiments have been completed to characterize coal-water slurry sprays generated by an electronically-controlled accumulator fuel injection system for a diesel engine. The sprays were injected into a pressurized chamber equipped with quartz...

  13. Pilot-scale demonstration of a slurry-phase biological reactor for creosote-contaminated soil. Applications analysis report

    SciTech Connect (OSTI)

    Dosani, M.; Platt, J.

    1993-01-01T23:59:59.000Z

    IT Corporation in conjunction with ECOVA Corporation (ECOVA) evaluated ECOVA's slurry-phase bioremediation technology under U.S. Environmental Protection Agency's (EPA) Superfund Innovative Technology Evaluation (SITE) program. The purpose of this report is to present information from the SITE demonstration and from three case studies to evaluate the technical and economic applicability of slurry-phase bioremediation technology to the remediation of soil- and sludge-bound hazardous contaminants.

  14. Activation and promotion studies in a mixed slurry reactor with an iron-manganese Fischer-Tropsch catalyst

    SciTech Connect (OSTI)

    Pennline, H.W.; Zarochak, M.F.; Stencel, J.M.; Diehl, J.R.

    1987-03-01T23:59:59.000Z

    Synthesis gas was reacted over a coprecipitated iron-manganese Fischer-Tropsch catalyst in a slurry reactor. The effect of various activation parameters - temperature, pressure, and gas composition - on subsequent catalyst activity and product selectivity was investigated. The gas composition had the most dramatic effect on the catalyst activation and the ensuing synthesis gas conversion. The effect of potassium promotion on catalyst activity and product selectivity was also studied in slurry reactor tests.

  15. An Approach to Understanding Cohesive Slurry Settling, Mobilization, and Hydrogen Gas Retention in Pulsed Jet Mixed Vessels

    SciTech Connect (OSTI)

    Gauglitz, Phillip A.; Wells, Beric E.; Fort, James A.; Meyer, Perry A.

    2009-05-22T23:59:59.000Z

    The Hanford Waste Treatment and Immobilization Plant (WTP) is being designed and built to pretreat and vitrify a large portion of the waste in Hanford’s 177 underground waste storage tanks. Numerous process vessels will hold waste at various stages in the WTP. Some of these vessels have mixing-system requirements to maintain conditions where the accumulation of hydrogen gas stays below acceptable limits, and the mixing within the vessels is sufficient to release hydrogen gas under normal conditions and during off-normal events. Some of the WTP process streams are slurries of solid particles suspended in Newtonian fluids that behave as non-Newtonian slurries, such as Bingham yield-stress fluids. When these slurries are contained in the process vessels, the particles can settle and become progressively more concentrated toward the bottom of the vessels, depending on the effectiveness of the mixing system. One limiting behavior is a settled layer beneath a particle-free liquid layer. The settled layer, or any region with sufficiently high solids concentration, will exhibit non-Newtonian rheology where it is possible for the settled slurry to behave as a soft solid with a yield stress. In this report, these slurries are described as settling cohesive slurries.

  16. Process for coal liquefaction by separation of entrained gases from slurry exiting staged dissolvers

    DOE Patents [OSTI]

    Givens, Edwin N. (Bethlehem, PA); Ying, David H. S. (Macungie, PA)

    1983-01-01T23:59:59.000Z

    There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a solvent, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals are separated from the condensed dissolver effluent. In accordance with the improved process, fresh hydrogen is fed to each dissolver and the entrained gas from each dissolver is separated from the slurry phase and removed from the reactor system before the condensed phase is passed to the next dissolver in the series. In accordance with another process, the feeds to the dissolvers are such that the top of each downstream dissolver is used as a gas-liquid separator.

  17. Experimental reactor system for investigation of indirect liquefaction catalysts in slurry phase operation

    SciTech Connect (OSTI)

    Zarochak, M.F.; Pennline, H.W.; Schehl, R.R.

    1984-02-01T23:59:59.000Z

    A detailed description of the slurry (three-phase) reactor scheme employed at the Pittsburgh Energy Technology Center for Fischer-Tropsch synthesis is reported. Emphasis is placed on materials of construction, equipment operation, and product collection and analysis. The unit's functional limits and safety features are also provided. Operational problems and the resolving remedial action are discussed. The reactor scheme now operates such that near isothermal conditions exist over the reactor internal length. Thus, with excellent temperature control assured, reliable information for evaluation of potential catalyst candidates for slurry phase Fischer-Tropsch synthesis is possible within a wide range of operating conditions. Test results with a fused-iron catalyst suspended in a paraffinic liquid medium are given as an example.

  18. Microwave applicator for in-drum processing of radioactive waste slurry

    DOE Patents [OSTI]

    White, T.L.

    1994-06-28T23:59:59.000Z

    A microwave applicator for processing of radioactive waste slurry uses a waveguide network which splits an input microwave of TE[sub 10] rectangular mode to TE[sub 01] circular mode. A cylindrical body has four openings, each receiving 1/4 of the power input. The waveguide network includes a plurality of splitters to effect the 1/4 divisions of power. 4 figures.

  19. Materials and design experience in a slurry-fed electric glass melter

    SciTech Connect (OSTI)

    Barnes, S.M.; Larson, D.E.

    1981-08-01T23:59:59.000Z

    The design of a slurry-fed electric gas melter and an examination of the performance and condition of the construction materials were completed. The joule-heated, ceramic-lined melter was constructed to test the applicability of materials and processes for high-level waste vitrification. The developmental Liquid-Fed Ceramic Melter (LFCM) was operated for three years with simulated high-level waste and was subjected to conditions more severe than those expected for a nuclear waste vitrification plant.

  20. A Qualitative Investigation of Deposition Velocities of a Non-Newtonian Slurry in Complex Pipeline Geometries

    SciTech Connect (OSTI)

    Yokuda, Satoru T.; Poloski, Adam P.; Adkins, Harold E.; Casella, Andrew M.; Hohimer, Ryan E.; Karri, Naveen K.; Luna, Maria; Minette, Michael J.; Tingey, Joel M.

    2009-05-11T23:59:59.000Z

    The External Flowsheet Review Team (EFRT) has identified the issues relating to the Waste Treatment and Immobilization Plant (WTP) pipe plugging. Per the review’s executive summary, “Piping that transports slurries will plug unless it is properly designed to minimize this risk. This design approach has not been followed consistently, which will lead to frequent shutdowns due to line plugging.” To evaluate the potential for plugging, testing was performed to determine critical velocities for the complex WTP piping layout. Critical velocity is defined as the point at which a moving bed of particles begins to form on the pipe bottom during slurry-transport operations. Pressure drops across the fittings of the test pipeline were measured with differential pressure transducers, from which the critical velocities were determined. A WTP prototype flush system was installed and tested upon the completion of the pressure-drop measurements. We also provide the data for the overflow relief system represented by a WTP complex piping geometry with a non-Newtonian slurry. A waste simulant composed of alumina (nominally 50 ?m in diameter) suspended in a kaolin clay slurry was used for this testing. The target composition of the simulant was 10 vol% alumina in a suspending medium with a yield stress of 3 Pa. No publications or reports are available to confirm the critical velocities for the complex geometry evaluated in this testing; therefore, for this assessment, the results were compared to those reported by Poloski et al. (2008) for which testing was performed for a straight horizontal pipe. The results of the flush test are compared to the WTP design guide 24590-WTP-GPG-M-0058, Rev. 0 (Hall 2006) in an effort to confirm flushing-velocity requirements.

  1. Cryogenic fractionator gas as stripping gas of fines slurry in a coking and gasification process

    DOE Patents [OSTI]

    DeGeorge, Charles W. (Chester, NJ)

    1981-01-01T23:59:59.000Z

    In an integrated coking and gasification process wherein a stream of fluidized solids is passed from a fluidized bed coking zone to a second fluidized bed and wherein entrained solid fines are recovered by a scrubbing process and wherein the resulting solids-liquid slurry is stripped with a stripping gas to remove acidic gases, at least a portion of the stripping gas comprises a gas comprising hydrogen, nitrogen and methane separated from the coker products.

  2. Processes and catalysts for conducting Fischer-Tropsch synthesis in a slurry bubble column reactor

    DOE Patents [OSTI]

    Singleton, A.H.; Oukaci, R.; Goodwin, J.G.

    1999-08-17T23:59:59.000Z

    Processes and catalysts are disclosed for conducting Fischer-Tropsch synthesis in a slurry bubble column reactor (SBCR). One aspect of the invention involves the use of cobalt catalysts without noble metal promotion in an SBCR. Another aspect involves using palladium promoted cobalt catalysts in an SBCR. Methods for preparing noble metal promoted catalysts via totally aqueous impregnation and procedures for producing attrition resistant catalysts are also provided. 1 fig.

  3. Processes and catalysts for conducting fischer-tropsch synthesis in a slurry bubble column reactor

    DOE Patents [OSTI]

    Singleton, Alan H. (Marshall Township, Allegheny County, PA); Oukaci, Rachid (Allison Park, PA); Goodwin, James G. (Cranberry Township, PA)

    1999-01-01T23:59:59.000Z

    Processes and catalysts for conducting Fischer-Tropsch synthesis in a slurry bubble column reactor (SBCR). One aspect of the invention involves the use of cobalt catalysts without noble metal promotion in an SBCR. Another aspect involves using palladium promoted cobalt catalysts in an SBCR. Methods for preparing noble metal promoted catalysts via totally aqueous impregnation and procedures for producing attrition resistant catalysts are also provided.

  4. Innovative process for concentration of fine particle coal slurries. Technical report, September 1--November 30, 1995

    SciTech Connect (OSTI)

    Rajchel, M. [Williams Technologies, Inc. (United States)]|[Clarke Rajchel Engineering, Arvada, CO (United States); Harnett, D. [Williams Technologies, Inc. (United States); Fonseca, A. [CONSOL, Pittsburgh, PA (United States); Maurer, R. [Destec (United States); Ehrlinger, H.P.

    1995-12-31T23:59:59.000Z

    Williams Technologies, Inc. and Clarke Rajchel Engineering are developing a technology (patent pending) to produce high quality coal water slurries from preparation plant fine coal streams. The WTI/CRE technology uses the novel implementation of high-shear cross-flow separation which replaces and enhances conventional thickening processes by surpassing normally achievable solids loadings. Dilute ultra-fine (minus 100 mesh) solids slurries can be concentrated to greater than 60 weight percent and re-mixed, as required, with de-watered coarser fractions to produce pumpable, heavily loaded coal slurries. The permeate (filtrate) resulting from this process has been demonstrated to be crystal clear and totally free of suspended solids. The primary objective of this project is to demonstrate the WTI/CRE coal slurry production process technology at the pilot scale. The technology will enable Illinois coal producers and users to realize significant coast and environmental benefits both by eliminating fine coal waste disposal problems and producing an IGCC fuel to produce power which meets all foreseeable clean air standards. In addition, testing is also directed at concentrating mine tailings material to produce a tailings paste which can be mine-back-, filled and thus eliminate the need for tailings ponds. This reporting period, September 1, 1995 through November 30, 1995, marked the inception of this project. During this period Task No. 1, Procurement and Set-Up, was completed. The pilot plant apparatus was constructed at the SIU Coal Research Center in Carterville, Illinois. All equipment and feedstock were received at the site.

  5. Experimental Testing of an Electrical Submersible Pump Undergoing Abrasive Slurry Erosion

    E-Print Network [OSTI]

    Saleh, Ramy Moaness M

    2013-04-01T23:59:59.000Z

    reservoir resources face depletion, the oil and gas explorations turn to offshore, subsea and ultra-deep subsea reservoirs to continue extracting the precious minerals and naturally ESPs followed. Today?s challenges and requirements of ESP systems continue... tester [4] , up to the Mark V Coriolis tester [5]. The evolution of the Coriolis tester allowed the use of flat specimens on both sides of the solid rotor, better specimen clamping, and better measurement of wear. 5 Figure 2. Slurry...

  6. Surface and bottom boundary layer dynamics on a shallow submarine bank : southern flank of Georges Bank

    E-Print Network [OSTI]

    Werner, Sandra R. (Sandra Regina)

    1999-01-01T23:59:59.000Z

    The thesis investigates the circulation at a 76-m deep study site on the southern flank of Georges Bank, a shallow submarine bank located between the deeper Gulf of Maine and the continental slope. Emphasis is placed on ...

  7. Effect of iron salts on the carbonization of coal-bitumen slurries

    SciTech Connect (OSTI)

    Royce, A.; Silveston, P.L.; Readyhough, P.J.; Fouda, S.A.

    1988-08-01T23:59:59.000Z

    The objective of this study was to investigate the inhibition of coke fusion by the presence of iron salts in coal-bitumen slurries. A Plastofrost apparatus was used for the above purpose, along with a specially developed procedure to handle the slurry. Three Canadian and one US coals were used along with a heavy bitumen (Cold Lake vacuum bottoms). Plastofrost samples were prepared of the coals with 0, 5 and 20 wt% additive, the vacuum bottoms, and slurries of 30 wt% coal in the vacuum bottoms with additive levels of 0, 5 and 20 wt%. The additive delayed initial fusion of the coal grains and completion of fusion. The anisotropic texture of the semicoke was diminished by the additive. The presence of vacuum bottoms suppressed coal fusion, probably by physically separating the coal grains. Fusion is also slightly suppressed at 20 wt% additive; 5 wt% seemed to have little effect. Dissolution of vitrain in the bitumen was not observed. The coal and vacuum bottom phases carbonize separately yielding distinct, but well bonded semicokes. Anisotropic texture of the vacuum bottoms coke is strongly diminished by the presence of the finely ground coal.

  8. Geochemistry of a reclaimed coal slurry impoundment. Final technical report, September 1, 1993--November 30, 1994

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M.

    1994-12-31T23:59:59.000Z

    The highly alkaline residue from the fluidized-bed combustion (FBC) of coal may be an environmentally acceptable material for use in neutralizing acid produced by the oxidation of pyrite in coal. slurry solids (CSS). Previous research indicated that FBC residues in mixtures with pyrite-rich CSS neutralized the acid produced by or attenuated the oxidation of pyrite in CSS. In the present research project we retrieved five drill cores from a reclaimed coal slurry impoundment, and installed three samplers in one of the core holes. The solids were chemically and mineralogically analyzed. Display of the mineralogical data on a cross section showed that pyrite was randomly distributed through much of the length of the coal slurry impoundment. Trace concentrations of heavy metals were correlated with pyrite in the core solids. Water samples were collected and analyzed. The water analyses showed that nutrients are insufficient to support plant growth without supplemental fertilization. The analytical data will provide background information necessary for the development of a predictive computer model of the kinetics of pyrite oxidation at near-neutral pH conditions. Programming of a computerized model to simulate pyrite oxidation under near-neutral pH conditions was begun. The program includes ideas from Morel and Hering (1993) and species are calculated in terms of 7 components of known concentrations. The ionic strength of the solution, the species activity coefficients, and the activities are calculated iteratively.

  9. An analysis of the bank holding company

    E-Print Network [OSTI]

    Facka, David William

    1969-01-01T23:59:59.000Z

    company exercises more supervision over the investments of each affiliate bank than over any of the other affiliate bank's activities. This service improves the flow of information, thus increasing the productivity of investments . Many of the services...) the conven- ience, needs, and welfare of the communities and the area concerned; and (5) whether or not the effect of such acquisition or merger or consolidation would be to expand the size or extent of the bank holding company system involved beyond...

  10. Building Green in Greensburg: Greensburg State Bank

    Office of Energy Efficiency and Renewable Energy (EERE)

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Greensburg State Bank building in Greensburg, Kansas.

  11. Building Green in Greensburg: Centera Bank

    Office of Energy Efficiency and Renewable Energy (EERE)

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Centera Bank building in Greensburg, Kansas.

  12. Building Green in Greensburg: The Peoples Bank

    Office of Energy Efficiency and Renewable Energy (EERE)

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Peoples Bank building in Greensburg, Kansas.

  13. Economic Efficiency of Texas Country Banks.

    E-Print Network [OSTI]

    Lee, Virgil P. (Virgil Porter)

    1932-01-01T23:59:59.000Z

    , 1932. *"In cooperation with U. S. Department of Agriculture. 1 $30( ings tive -. "his study shows that most Texas country banks with less than 1,000 to $400,000 in earning assets have comparatively low earn- ;, pay very little interest... to the bank investment. If we take total deposits as a rough measure of earning assets, the aver- age ratio of earning assets to capital and surplus among the banks with less than $50, 000 deposits in 1929 was 2.23 as compared with 5.19 for banks...

  14. ASSESSMENT OF THE ABILITY OF STANDARD SLURRY PUMPS TO MIX MISCIBLE AND IMMISCIBLE LIQUIDS IN TANK 50H

    SciTech Connect (OSTI)

    Poirier, M.

    2011-06-15T23:59:59.000Z

    Tank 50H is the feed tank for the Saltstone Production Facility (SPF). At present, Tank 50H contains two standard slurry pumps and two Quad Volute slurry pumps. Current requirements and mixing operation is to run three pumps for one hour prior to initiating a feed transfer to SPF. Savannah River Site (SRS) Liquid Waste would like to move one or both of the Quad Volute pumps from Tank 50H to Tank 51H to replace pumps in Tank 51H that are failing. In addition, one of the standard pumps in Tank 50H exhibits high seal leakage and vibration. SRS Liquid Waste requested Savannah River National (SRNL) to conduct a study to evaluate the feasibility of mixing the contents of Tank 50H with one to three standard slurry pumps. To determine the pump requirements to blend miscible and immiscible liquids in Tank 50H, the author reviewed the pilot-scale blending work performed for the Salt Disposition Integration Project (SDIP) and the technical literature, and applied the results to Tank 50H to determine the number, size, and operating parameters needed to blend the tank contents. The conclusions from this analysis are: (1) A single rotating standard slurry pump (with a 13.6 ft{sup 2}/s U{sub 0}D) will be able to blend miscible liquids (i.e., salt solution) in Tank 50H within 4.4 hours. (2) Two rotating standard slurry pumps will be able to blend miscible liquids in Tank 50H within 3.1 hours. (3) Three rotating standard slurry pumps will be able to blend miscible liquids in Tank 50H within 2.5 hours. (4) A single rotating standard slurry pump (with a 13.6 ft{sup 2}/s U{sub 0}D) will disperse Isopar L{reg_sign} droplets that are less than or equal to 15 micron in diameter. If the droplets are less than 15 micron, they will be dispersed within 4.4 hours. Isopar L{reg_sign} provides a lower bound on the maximum size of droplets that will be dispersed by the slurry pumps in Tank 50H. (5) Two rotating standard slurry pumps will disperse Isopar L{reg_sign} droplets less than 15 micron within 3.1 hours, and three rotating standard slurry pumps will disperse Isopar L{reg_sign} droplets less than 15 micron within 2.5 hours. (6) If the Isopar L{reg_sign} droplets are drawn through the pump, they will be further reduced in size, with a maximum drop size less than 15 micron.

  15. Synthesis of octane enhancer during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 4, July 1, 1991--September 30, 1991

    SciTech Connect (OSTI)

    Marcelin, G.

    1991-12-15T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl ether (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: Addition of isobutylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch. Addition of isobutylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst. Addition of methanol to slurry phase FT synthesis making iso-olefins.

  16. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 5, October 1, 1991--December 31, 1991

    SciTech Connect (OSTI)

    Marcelin, G.

    1992-06-10T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl ether (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: Addition of isobutylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch. Addition of isobutylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst. Addition of methanol to slurry phase FT synthesis making iso-olefins.

  17. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 3, April 1, 1991--June 30, 1991

    SciTech Connect (OSTI)

    Marcelin, G.

    1991-10-15T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butytl ether (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: (1) Addition of isobutylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch; (2) addition of isobutylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst; and, (3) addition of methanol to slurry phase FT synthesis making iso-olefins.

  18. NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA ELECTRONICS DIVISION TECHNICAL NOTE R. Lacasse #12;NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia 140-ft CASSEGRAIN BAa

  19. active germplasm bank: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Websites Summary: University of Kentucky Automatic Bank Draft Donation Agreement Name: Address: City: State: Zip by the University of Kentucky on my bank account...

  20. affect foreign bank: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Websites Summary: University of Kentucky Automatic Bank Draft Donation Agreement Name: Address: City: State: Zip by the University of Kentucky on my bank account...

  1. allied irish bank: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sciences Websites Summary: University of Kentucky Automatic Bank Draft Donation Agreement Name: Address: City: State: Zip by the University of Kentucky on my bank account...

  2. Making Development Climate Resilient: A World Bank Strategy for...

    Open Energy Info (EERE)

    search Tool Summary LAUNCH TOOL Name: Making Development Climate Resilient: A World Bank Strategy for Sub-Saharan Africa AgencyCompany Organization: World Bank Sector: Energy,...

  3. Co-firing high sulfur coal with refuse derived fuels. Technical progress report No. 8, July 1996--August 1996

    SciTech Connect (OSTI)

    Pan, Wei-Ping; Riley, J.T.; Lloyd, W.G.

    1996-08-31T23:59:59.000Z

    The objective of this study was to examine the possible formation of chlorinated organic compounds during the combustion of blends of refuse derived fuels (RDF) and coal under conditions similar to those of an atmospheric fluidized bed combustion (AFBC) system. A series of experiments were conducted using a TGA interfaced to FTIR. Additional experiments using a tube furnace preheated to AFBC operating temperatures were also conducted. The combustion products were cryogenically trapped and analyzed with a GC/MS system. The chlorination of phenols and the condensation reactions of chlorophenols were investigated in this study. A possible mechanism for the formation of chlorinated organic compounds such as dibenzodioxins and dibenzofurans, by chlorination and condensation reactions involving phenols, was proposed.

  4. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Refuse Hideaway Landfill in Middleton, Wisconsin

    SciTech Connect (OSTI)

    Salasovich, J.; Mosey, G.

    2011-08-01T23:59:59.000Z

    This report presents the results of an assessment of the technical and economic feasibility of deploying a photovoltaics (PV) system on a brownfield site at the Refuse Hideaway Landfill in Middleton, Wisconsin. The site currently has a PV system in place and was assessed for further PV installations. The cost, performance, and site impacts of different PV options were estimated. The economics of the potential systems were analyzed using an electric rate of $0.1333/kWh and incentives offered by the State of Wisconsin and by the serving utility, Madison Gas and Electric. According to the site production calculations, the most cost-effective system in terms of return on investment is the thin-film fixed-tilt technology. The report recommends financing options that could assist in the implementation of such a system.

  5. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. [801Methyl tert-butyl ether

    SciTech Connect (OSTI)

    Marcelin, G.

    1992-06-24T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl ether (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: (1) Addition of isobutylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch. (2) Addition of isobutylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst. (3) Addition of methanol to slurry phase FT synthesis making iso-olefins. During the sixth quarter we completed the construction of the slurry bubble column reactor (SBCR), conducted initial shake-down experiments in a cold-flow mode, and finalized the selection process of the acid catalysts for conversion of syngas-produced alcohols and isobutylene to MTBE (scheme 2). Tasks 3, 4, and 5 are awaiting complete implementation of the SBCR system.

  6. Hydrodynamic models for slurry bubble column reactors. Seventh technical progress report, January--March 1996

    SciTech Connect (OSTI)

    Gidaspow, D.

    1996-04-01T23:59:59.000Z

    The objective of this investigation is to convert our ``learning gas solid-liquid`` fluidization model into a predictive design model. The IIT hydrodynamic model computes the phase velocities and the volume fractions of gas, liquid and particulate phase. Model verification involves a comparison of these computed velocities and volume fractions to experimental values. A hydrodynamic model for multiphase flows, based on the principles of mass, momentum and energy conservation for each phase, was developed and applied to model gas-liquid, gas-liquid-solid fluidization and gas-solid-solid separation. To simulate the industrial slurry bubble column reactors, a computer program based on the hydrodynamic model was written with modules for chemical reactions (e.g. the synthesis of methanol), phase changes and heat exchangers. In the simulations of gas-liquid two phases flow system, the gas hold-ups, computed with a variety of operating conditions such as temperature, pressure, gas and liquid velocities, agree well with the measurements obtained at Air Products` pilot plant. The hydrodynamic model has more flexible features than the previous empirical correlations in predicting the gas hold-up of gas-liquid two-phase flow systems. In the simulations of gas-liquid-solid bubble column reactors with and without slurry circulation, the code computes volume fractions, temperatures and velocity distributions for the gas, the liquid and the solid phases, as well as concentration distributions for the species (CO, H{sub 2}, CH{sub 3}0H, ... ), after startup from a certain initial state. A kinetic theory approach is used to compute a solid viscosity due to particle collisions. Solid motion and gas-liquid-solid mixing are observed on a color PCSHOW movie made from computed time series data. The steady state and time average catalyst concentration profiles, the slurry height and the rates of methanol production agree well with the measurements obtained at an Air Products` pilot plant.

  7. Synthesis gas conversion in a mixed slurry reactor with iron-manganese catalysts

    SciTech Connect (OSTI)

    Pennline, H.W.; Schehl, R.R.; Tischer, R.E.; Zarochak, M.F.

    1984-08-01T23:59:59.000Z

    Synthesis gas was reacted over different compositions of iron-manganese Fischer-Tropsch catalysts in a slurry reactor. The reactor operates in a back-mixed mode with a continuous flow of feed gas through the catalyst suspended in the liquid medium. Four catalysts with iron-manganese ratios of 57/43, 44/56, 22/78, and 10/90 were investigated at identical process conditions after a standard activation procedure. With time on stream for each catalyst system, hydrogenation of olefins occurred, along with olefin isomerization reactions. Activity, selectivity, and stability are discussed in general. Analyses of used catalyst samples are also reported.

  8. Integration of stripping of fines slurry in a coking and gasification process

    DOE Patents [OSTI]

    DeGeorge, Charles W. (Chester, NJ)

    1980-01-01T23:59:59.000Z

    In an integrated fluid coking and gasification process wherein a stream of fluidized solids is passed from a fluidized bed coking zone to a second fluidized bed and wherein entrained solid fines are recovered by a wet scrubbing process and wherein the resulting solids-liquid slurry is stripped to remove acidic gases, the stripped vapors of the stripping zone are sent to the gas cleanup stage of the gasification product gas. The improved stripping integration is particularly useful in the combination coal liquefaction process, fluid coking of bottoms of the coal liquefaction zone and gasification of the product coke.

  9. Effects of friction factor and slip factor on the performance of a centrifugal slurry pump 

    E-Print Network [OSTI]

    Sheth, Ketankumar Kantilal

    1985-01-01T23:59:59.000Z

    , mass, or volume flow. 3. 2. 4 Recirculating Pump small centrifugal pump (Figure 9) was used to keep the slurry agitating within the tank by discharging in the Q w, pg+p~w '=A ~ fl p rr f f+4;. '"2 '. . . &f -. P'. . !' ' g- ' ?y 25 bottom... elbow hav ing pressure taps 0 at 45 as shown in figure 10 was used for a flowmeter. Two 1/8" diameter holes were drilled on the inner and outer side of the elbow and 1/8" diameter pipe nipples were welded for pressure transducer connection. 3. 2. 6...

  10. Volatile sulfhydryl compounds produced in Cheddar cheese slurries upon the addition of whey protein and casein

    E-Print Network [OSTI]

    Sheffield, Amelia Rose

    1992-01-01T23:59:59.000Z

    . . . . . 16 19 19 20 21 23 23 25 26 26 31 32 40 Page Concentration of Reactive Sulfhydryl Groups in Slurries. . . . . 43 Effects of Added Milk Proteins on VSH Production. . . CONCLUSIONS. APPENDIX. VITA. 47 66 69 78 132 LIST OF TABLES... and pH of the milk (Table 1), 5 ml of frozen culture (Redi Set DVS ?980, Chr. Hansen' s Laboratory, Inc. , Milwaukee, WI) and rennet (Standard Calf Rennet, 100% high strength, Chr. Hansen's Laboratory) were added directly to the cheese vat and gently...

  11. Characterization of coal water slurry sprays from a positive displacement fuel injection system

    E-Print Network [OSTI]

    Kumar Seshadri, Ajoy

    1991-01-01T23:59:59.000Z

    of the Diaphragm Pump/Jerk Pump Assembly. Injector Nozzle Schematic Nozzle Tip Schematic SEM of a Nozzle Tip Hole. Pressure Chamber Vessel Schematic. . . Block Diagrams of the Apparatus and 10 12 14 15 16 18 20 Instrumentation. 22 Figure 10 Figure... 50% Coal, 48-. water, 1% lignosulphonate, and 1% Triton X-114. The coal used was a high volatile subbituminous which was cleaned to less than 0. 8% ash (on a dry coal basis). Table 2 lists the slurry characteristics. 24 projector Lamps Injector...

  12. Thorium oxide slurries as blankets in fissile producing fusion- fission hybrids

    E-Print Network [OSTI]

    Geer, Thomas Charles

    1982-01-01T23:59:59.000Z

    of Advisory Committee: Dr. T. A. Parish An alternative to fixed-fertile and molten salt fissile producing fusion-fission hybrid blankets was developed. The neutronic feasibility of a thorium oxide-heavy water slurry as a blanket was tested for a Catalyzed... of continuous fission product and fissile material removal, thus limiting the in-situ burnup of the product. A natural consideration for such a fluid fuel system is a molten salt. Fluorides of either uranium of thorium can be dissilved in molten flouride...

  13. Plant response to FBC waste-coal slurry solid mixtures. [Quarterly] technical report, September 1--November 30, 1993

    SciTech Connect (OSTI)

    Darmody, R.G.; Dunker, R.E. [Illinois Univ., Urbana, IL (United States); Dreher, G.B.; Roy, W.R.; Steel, J.D. [Illinois State Geological Survey, Urbana, IL (United States)

    1994-03-01T23:59:59.000Z

    The goal of this project is to test the feasibility of stabilizing coal slurry solids (CSS) wastes by directly seeding plants into the waste. This is not done conventionally because the waste can generate toxic amounts of sulfuric acid. Our approach is to neutralize the potential acidity by mixing fluidized bed combustion (FBC) waste into the slurry. If successful, this approach would both help dispose of FBC wastes while providing a more economical slurry stabilization technique. The project involves growing forage plants in CSS-FBC mixtures in the greenhouse. This is the first quarter of the project. We have designed the experiment, secured greenhouse space, purchased the seeds, collected and dried the FBC and CSS samples. The samples represent a typical range of properties. We retrieved two FBC and two CSS samples. One CSS sample appears to have a higher pyrite content than the other.

  14. Electrical conductivity is a parameter that can be used to monitor the entire hardening process of oilwell cement slurries. The theo-

    E-Print Network [OSTI]

    Backe, Knut

    process of oilwell cement slurries. The theo- retical relationship among conductivity, porosity, cement and that rapid hydration will reduce the risk of gas migration. Introduction The main purposes of oilwell cements hardening process of oilwell cement slurries is important for successful cementing operations. Several

  15. Impact of finite-rate kinetics on carbon conversion in a single-stage entrained flow gasifier with coal-CO2 slurry feed

    E-Print Network [OSTI]

    Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 Abstract Coal-CO2 slurry Botero) #12;Clearwater Clean Coal Conference, June 3-7, 2012 Botero et al. operating costs related with coal-CO2 slurry feed Cristina Botero , Randall P. Field, Howard J. Herzog, Ahmed F. Ghoniem

  16. Prototyping of a real size air-conditioning system using a tetra-n-butylammonium bromide semiclathrate hydrate slurry as secondary two-phase refrigerant

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    semiclathrate hydrate slurry as secondary two-phase refrigerant ­ Experimental investigations and modelling). Abstract Among innovative processes developed in the field of refrigeration systems, technologies) is used as secondary refrigerant. The production of the slurry can be smoothed over day and night. Upon

  17. The use of FBC wastes in the reclamation of coal slurry solids. Technical report, March 1, 1992--May 31, 1992

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1992-10-01T23:59:59.000Z

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to S0{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4} {center_dot} 2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in Illinois are mixed with coal slurry solids (CSS) from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The final goal of this and future research is to determine whether mixed FBC waste and coal slurry solids can be used as a satisfactory growing medium in slurry pond reclamation. The chemical analyses of the 8 starting solids (5 FBC wastes, 2 Css samples, and 1 agricultural limestone sample) were completed.

  18. The use of FBC wastes in the reclamation of coal slurry solids. Technical report, September 1--November 30, 1991

    SciTech Connect (OSTI)

    Dreher, G.B.

    1991-12-31T23:59:59.000Z

    Fluidized bed combustion (FBC) is a relatively new technology that is used commercially for the combustion of coal. In Illinois, this technology is valuable because it allows the combustion of Illinois high sulfur coal without pollution of the atmosphere with vast quantities of sulfur oxides. In FBC, coal is mixed with limestone or dolomite either before injection into the combustion chamber or in the combustion chamber. As the coal burns, sulfur in the coal is oxidized to SO{sub 2} and this is trapped by reaction with the limestone or dolomite to form gypsum (CaSO{sub 4}{center_dot}2H{sub 2}O). Solid by-products from FBC are generally a mixture of calcium oxide, gypsum, coal ash, and unburned coal. The present research project is designed to provide initial data on one possible use of FBC waste. FBC wastes from five different locations in the Illinois are mixed with coal slurry solids from two different coal preparation plants at Illinois coal mines. In mixtures of FBC waste and coal slurry solids, the alkaline components of the FBC waste are expected to react with acid produced by the oxidation of pyrite in the coal slurry solid. An objective of this research is to determine the chemical composition of aqueous leachates from mixtures of FBC wastes, generated under various operating conditions, and the coal slurry solids. These data will be used in future research into the ability of such mixtures to support seed germination and plant growth. The ultimate of this and future research is to determine whether mixed FBC waste and coal slurry solids can be slurry pond reclamation.

  19. SUCCESSES AND EMERGING ISSUES IN SIMULATING THE PROCESSING BEHAVIOR OF LIQUID-PARTICLE NUCLEAR WASTE SLURRIES AT THE SAVANNAH RIVER SITE - 205E

    SciTech Connect (OSTI)

    Koopman, D.; Lambert, D.; Stone, M.

    2009-09-02T23:59:59.000Z

    Slurries of inorganic solids, containing both stable and radioactive elements, were produced during the cold war as by-products of the production of plutonium and enriched uranium and stored in large tanks at the Savannah River Site. Some of this high level waste is being processed into a stable glass waste form today. Waste processing involves various large scale operations such as tank mixing, inter-tank transfers, washing, gravity settling and decanting, chemical adjustment, and vitrification. The rheological properties of waste slurries are of particular interest. Methods for modeling flow curve data and predicting the properties of slurry blends are particularly important during certain operational phases. Several methods have been evaluated to predict the rheological properties of sludge slurry blends from the data on the individual slurries. These have been relatively successful.

  20. Thickening of ultrafine coal-water slurries in a solid-bowl centrifuge

    SciTech Connect (OSTI)

    Pinkerton, A.P.; Klima, M.S.; Morrison, J.L.; Miller, B.G.

    1999-07-01T23:59:59.000Z

    As part of a study being conducted for the Electric Power Research Institute's (EPRI's) Upgraded Coal Interest Group (UCIG) to evaluate ultrafine coal dewatering technologies, testing was carried out to investigate the use of a solid-bowl (high-g) centrifuge for thickening ultrafine coalwater slurries. The objective of this study was to increase the solids concentration to a level suitable for use as a coal-water slurry fuel, while maximizing overall solids recovery. Feed material was collected from the combined discharge (centrate) streams from several screen-bowl centrifuges. These devices are currently being used in a commercial coal cleaning facility to dewater the clean coal product from a froth flotation circuit. Current plant practice is to discharge the centrate to settling ponds. The screen bowl centrate averages 5% solids by weight and contains nearly 60% material finer than 10 {mu}m. The current study examined the effects of operating conditions on centrifuge performance. The test conditions included centrifuge bowl and scroll speeds and volumetric feed rate. In addition to thickening, some cleaning was also achieved, because the finest particles (e.g. < 3 {micro}m), which contained a large percentage of liberated clays, were removed with the bulk of the water. The centrifuge products were analyzed for solids concentration, particle size distribution, and ash content. Size selectivity curves were also used to evaluate centrifuge performance.

  1. Resuspension of non-Newtonian slurries by submerged jet-nozzles

    SciTech Connect (OSTI)

    Reshma, Reshma [Applied Research Center, Florida International University, Miami, FL 33174 (United States); Civil and Environmental Engineering Department, Florida International University, Engineering Center 3676, Miami, FL 33174 (United States); Daas, Mutaz; Srivastava, Rajiv [Applied Research Center, Florida International University, Miami, FL 33174 (United States); Tansel, Berrin [Civil and Environmental Engineering Department, Florida International University, Engineering Center 3676, Miami, FL 33174 (United States)

    2007-07-15T23:59:59.000Z

    Experiments were conducted to determine the fluid velocity required for resuspension and removal of the radioactive waste sludge, which is characterized as a non-Newtonian fluid, from the tanks at the Savannah river site (SRS) (Georgia, USA) to accelerate the closure of the tanks with high level waste (HLW). Five different non-Newtonian fluids, which simulated the actual waste characteristics, were used to investigate the resuspension of the slurries with a jet-nozzle mixer. The laboratory tests were conducted at different flow rates and jet-nozzle orientations in a cylindrical tank with 0.3-m diameter and 0.46 m in height. Resuspension of the slurries was achieved by the submerged jets produced by two horizontal discharge nozzles located under the liquid level and positioned at 180 from each other. The fluids exhibited Bingham plastic behavior; therefore, the mixing power depends not only on the Reynolds number but also on the yield stress and high shear viscosity. A similarity analysis was performed to determine the effective cleaning radius (ECR) of the jet. The mixing efficiency was evaluated by visual analysis of the images during the experiments conducted at three nozzle orientations at 0 , 45 , and 90 and two nozzle exit velocities of 2.33 m/s and 0.56 m/s. The centerline velocity decayed with the distance from the jet-nozzle. The experimental results were compared with other mixing models. (author)

  2. Andrew G Haldane: Banking on the state Paper by Mr Andrew G Haldane, Executive Director, Financial Stability, Bank of England,

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Stability, Bank of England, and Mr Piergiorgio Alessandri, based on a presentation delivered at the Federal

  3. SKA Organisation Jodrell Bank Centre for Astrophysics

    E-Print Network [OSTI]

    Tian, Weidong

    SKA Organisation Jodrell Bank Centre for Astrophysics Room 3.116 Alan Turing Building. The SKA Organisation is based in the Alan Turing Building, The University of Manchester and will move

  4. Industrial innovations for tomorrow: Advances in industrial energy-efficiency technologies. Commercial power plant tests blend of refuse-derived fuel and coal to generate electricity

    SciTech Connect (OSTI)

    Not Available

    1993-11-01T23:59:59.000Z

    MSW can be converted to energy in two ways. One involves the direct burning of MSW to produce steam and electricity. The second converts MSW into refuse-derived fuel (RDF) by reducing the size of the MSW and separating metals, glass, and other inorganic materials. RDF can be densified or mixed with binders to form fuel pellets. As part of a program sponsored by DOE`s Office of Industrial Technologies, the National Renewable Energy Laboratory participated in a cooperative research and development agreement to examine combustion of binder-enhanced, densified refuse-derived fuel (b-d RDF) pellets with coal. Pelletized b-d RDF has been burned in coal combustors, but only in quantities of less than 3% in large utility systems. The DOE project involved the use of b-d RDF in quantities up to 20%. A major goal was to quantify the pollutants released during combustion and measure combustion performance.

  5. Co-firing high sulfur coal with refuse derived fuels. Technical progress report No. 5, [October--December 1995

    SciTech Connect (OSTI)

    Pan, Wei-Ping; Riley, J.T.; Lloyd, W.G.

    1995-11-30T23:59:59.000Z

    Studies involving the tubular furnace are in the process of identifying the ideal experimental coal-to-refuse derived fuel(RDF) ratio for use in the AFBC system. A series of experiments with this furnace has been performed to determine the possible chemical pathway for formation of chlorinated organic compounds during the combustion of various RDF sources. Phenol and chlorine appear to be likely reactants necessary for the formation of these compounds. The main goal of these experiment is to determine the exact experimental conditions for the formation of chlorinated organic compounds, as well as methods to inhibit their development. Work on the fluidized bed combustor has involved five combustion runs, in which a combustion efficiency of greater than 96% and with a consistent CO{sub 2} concentration of approximately 13% was obtained. Modifications responsible for these improvements include the addition of the underbed fuel feed system and revision of the flue gas sampling system. New methods of determining combustion efficiency and percentage of SO{sub 2} capture using TG techniques to analyze combustion products are being developed. The current outlook using this TGA/FTIR method is very promising, since previously obscured reactions are being studied. the analysis of combustion products is revealing a more complete picture of the combustion process within the AFBC system.

  6. Discussion of and reply to ``A new processing system for the production of improved refuse derived fuel and recyclables from municipal solid waste``

    SciTech Connect (OSTI)

    Smisko, J. [Commerce Refuse to Energy Facility, CA (United States); Eley, M.H.; Guinn, G.R. [Univ. of Alabama, Huntsville, AL (United States). Johnson Research Center

    1995-11-01T23:59:59.000Z

    The author presents some comments that contribute to the content and appropriate use of this paper by Michael H. Eley and Gerald R. Guinn. Some of the questions asked concern the following: contamination and marketability of the melted plastic lumps; plastics content of refuse; woody biomass reduced to mulch; quality of recycled material; odor and particulate control; ash content; and corrosion problems. This article also contains the original authors` reply to the comments and questions.

  7. PROGRESS TOWARDS MODELING OF FISCHER TROPSCH SYNTHESIS IN A SLURRY BUBBLE COLUMN REACTOR

    SciTech Connect (OSTI)

    Donna Post Guillen; Tami Grimmett; Anastasia M. Gandrik; Steven P. Antal

    2010-11-01T23:59:59.000Z

    The Hybrid Energy Systems Testing (HYTEST) Laboratory is being established at the Idaho National Laboratory to develop and test hybrid energy systems with the principal objective to safeguard U.S. Energy Security by reducing dependence on foreign petroleum. A central component of the HYTEST is the slurry bubble column reactor (SBCR) in which the gas-to-liquid reactions will be performed to synthesize transportation fuels using the Fischer Tropsch (FT) process. SBCRs are cylindrical vessels in which gaseous reactants (for example, synthesis gas or syngas) is sparged into a slurry of liquid reaction products and finely dispersed catalyst particles. The catalyst particles are suspended in the slurry by the rising gas bubbles and serve to promote the chemical reaction that converts syngas to a spectrum of longer chain hydrocarbon products, which can be upgraded to gasoline, diesel or jet fuel. These SBCRs operate in the churn-turbulent flow regime which is characterized by complex hydrodynamics, coupled with reacting flow chemistry and heat transfer, that effect reactor performance. The purpose of this work is to develop a computational multiphase fluid dynamic (CMFD) model to aid in understanding the physico-chemical processes occurring in the SBCR. Our team is developing a robust methodology to couple reaction kinetics and mass transfer into a four-field model (consisting of the bulk liquid, small bubbles, large bubbles and solid catalyst particles) that includes twelve species: (1) CO reactant, (2) H2 reactant, (3) hydrocarbon product, and (4) H2O product in small bubbles, large bubbles, and the bulk fluid. Properties of the hydrocarbon product were specified by vapor liquid equilibrium calculations. The absorption and kinetic models, specifically changes in species concentrations, have been incorporated into the mass continuity equation. The reaction rate is determined based on the macrokinetic model for a cobalt catalyst developed by Yates and Satterfield [1]. The model includes heat generation due to the exothermic chemical reaction, as well as heat removal from a constant temperature heat exchanger. Results of the CMFD simulations (similar to those shown in Figure 1) will be presented.

  8. Argonne Premium Coal Sample Bank The Argonne Premium Coal (APC) Sample Bank can supply

    E-Print Network [OSTI]

    Maranas, Costas

    Argonne Premium Coal Sample Bank Background Overview T The Argonne Premium Coal (APC) Sample Bank can supply researchers with highly uniform, well-protected coal samples unexposed to oxygen. Researchers investigating coal structure, properties, and behavior can benefit greatly from these samples

  9. Innovative process for concentration of fine particle coal slurries. Final technical report, September 1, 1995--August 31, 1996

    SciTech Connect (OSTI)

    Rajchel, M.; Ehrlinger, H.P.; Harnett, D.; Fonseca, A.; Maurer, R.

    1997-05-01T23:59:59.000Z

    Williams Technologies, Inc. And Clarke Rajchel Engineering are developing a technology (patent pending) to produce high quality coal water slurries from preparation plant fine coal streams. The WTI/CRE technology uses the novel implementation of high-shear cross-flow separation which replaces and enhances conventional thickening processes by surpassing normally achievable solids loadings. Dilute ultra-fine (minus 100 mesh) solids slurries can be concentrated to greater than 60 weight percent and remixed, as required, with de-watered coarser fractions to produce pumpable, heavily loaded coal slurries. The permeate (filtrate) resulting from this process has been demonstrated to be crystal clear and totally free of suspended solids. The primary objective of this project was to demonstrate the WTI/CRE coal slurry production process technology at the pilot scale. The technology can enable Illinois coal producers and users to realize significant cost and environmental benefits both by eliminating fine coal waste disposal problems and producing an IGCC fuel to produce power which meets all foreseeable clean air standards. Testing was also directed at concentrating mine tailings material to produce a tailings paste which can be mine-back- filled, eliminating the need for tailings ponds. During the grant period, a laboratory-scale test apparatus (up to 3 GPM feed rate) was assembled and operated to demonstrate process performance over a range of feed temperatures and pressures. A dilute coal/water slurry from Consol, Inc.`s Rend Lake Preparation Plant was concentrated with the process to a maximum recorded solids loading of 61.9% solids by weight. Analytical results from the concentrate were evaluated by Destec Energy for suitability as an IGCC fuel.

  10. Resin-coated sand slurry pack gas deliverabilities: Field and laboratory results

    SciTech Connect (OSTI)

    Wilson, B.; Nelson, C.; Stadleman, J.

    1983-10-01T23:59:59.000Z

    Although through-tubing resin-coated sand slurry packs (RCSSP's) are significantly less expensive than conventional gravel packs, they have not been widely used as a sand control completion technique. This low usage is mainly due to two inherent problems. The first is the high risk of localized pack failure in the perforation tunnels when the RCSSP casing plug is milled out. The second problem is the difficulty associated with predicting flow rates (and therefore economics) of RCSSP completed wells, especially if the casing plug is not milled out. This paper presents a modified velocity coefficient correlation for gas turbulence, an innovative RCSSP completion configuration with an associated simulation technique, and supporting field results that demonstrate an expanded application for RCSSP's in the area of gas well through-tubing plugbacks where, until recently, their general application was thought to be uneconomical.

  11. Slurry phase Fischer-Tropsch synthesis: Cobalt plus a water-gas shift catalyst

    SciTech Connect (OSTI)

    Yates, I.C.; Satterfield, C.N.

    1988-01-01T23:59:59.000Z

    This report details experiments performed on three different copper-based catalysts: Cu/Cr[sub 2]O[sub 3], Cu/MnO/Cr[sub 2]O[sub 3] and Cu/ZnO/Al[sub 2]O[sub 3]. Of these three catalysts, the Cu/ZnO/Al[sub 2]O[sub 3] exhibits the greatest stability when slurried in octacosane. More than 1000 hours-on-stream indicate that the catalyst activity is not detrimentally affected by high pressure, high H[sub 2]/CO ratio, or the presence of alkenes. All of these are necessary stability characteristics for the water-gas shift catalyst, if it is to be used in combination with a cobalt Fischer-Tropsch catalyst. A review of documented reduction procedures for cobalt-based Fischer-Tropsch catalysts is presented.

  12. DEMONSTRATION OF MIXING AND TRANSFERRING SETTLING COHESIVE SLURRY SIMULANTS IN THE AY-102 TANK

    SciTech Connect (OSTI)

    Adamson, D.

    2011-08-04T23:59:59.000Z

    In support of Hanford's waste certification and delivery of tank waste to the Waste Treatment and Immobilization Plant (WTP), Savannah River National Laboratory (SRNL) was tasked by the Washington River Protection Solutions (WRPS) to evaluate the effectiveness of mixing and transferring tank waste in a Double Shell Tank (DST) to the WTP Receipt Tank. The work discussed in this report (Phase III) address the impacts cohesive simulants have on mixing and batch transfer performance. The objective of the demonstrations performed in Phase III was to determine the impact that cohesive particle interactions in the simulants have on tank mixing using 1/22{sup nd} scale mixing system and batch transfer of seed particles. This testing is intended to provide supporting evidence to the assumption that Hanford Small Scale Mixing Demonstration (SSMD) testing in water is conservative. The batch transfers were made by pumping the simulants from the Mixing Demonstration Tank (MDT) to six Receipt Tanks (RTs), and the consistency in the amount of seed particles in each batch was compared. Tests were conducted with non-Newtonian cohesive simulants with Bingham yield stress ranging from 0.3 Pa to 7 Pa. Kaolin clay and 100 {mu}m stainless steel seed particles were used for all the non-Newtonian simulants. To specifically determine the role of the yield stress on mixing and batch transfer, tests were conducted with a Newtonian mixture of glycerol and water with at viscosity of 6.2 cP that was selected to match the Bingham consistency (high shear rate viscosity) of the higher yield stress kaolin slurries. The water/glycerol mixtures used the same 100 {mu}m stainless steel seed particles. For the transfer demonstrations in Phase III, the mixer jet pumps were operated either at 10.0 gpm (28 ft/s nozzle velocity, U{sub o}D=0.63 ft{sup 2}/s) or 8.0 gpm (22.4 ft/s nozzle velocity, U{sub o}D=0.504 ft{sup 2}/s). All batch transfers from the MDT to the RTs were made at 0.58 gpm (MDT suction velocity 3.95 ft/s). The demonstrations that used simulants that ranged from 1.6 Pa to 7 Pa yield stress had the most successful batch transfer of solids to the RTs in terms of the total quantity of seed particles transferred. Testing suggest that when mixing water/seed particles and transferring, water provides the least desired batch transfer of solids based on the total quantity transferred. For the water tests, large dead zones of solids formed in the MDT and fewer solids get transferred to the RTs. For simulants with a yield stress of 0.3 Pa and below, the batch transfer behavior in terms of total transfer of seed particles was slightly higher than water test results. The testing did show somewhat more batch-to-batch variation in the transfer of seed particles with the slurries in comparison to water. A comparison of batch transfers with the kaolin slurries that had Bingham consistencies (viscosities) that wernearly the same as the Newtonian glycerol/water mixtures showed that the kaolin slurries with Bingham yield stresses of 1.6 and 7 Pa gave better batch transfer of seed particles based on the total quantities transferred. Overall, the batch transfer testing results show that testing with water is conservative, since using a simulant with a yield stress and/or elevated viscosity always resulted in a better total transfer of solids.

  13. automated blood bank: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Blood Banking in Living Droplets MIT - DSpace Summary: Blood banking has a broad public health impact...

  14. Essays on Bank Optimal Portfolio Choice under Liquidity Constraint

    E-Print Network [OSTI]

    Kim, Eul Jin

    2012-10-19T23:59:59.000Z

    portfolio choices under liquidity constraints. Our theory predicts that liquidation plays an important role in a bank's portfolio model. Even though liquidation is an off-equilibrium phenomenon, banks can have rich loan portfolios due to the possibility...

  15. Essays on banking and corporate finance in developing countries

    E-Print Network [OSTI]

    Gormley, Todd A

    2006-01-01T23:59:59.000Z

    This dissertation consists of three essays that examine banking and corporate finance in developing countries. Specifically, it explores the theoretical and empirical implications of open capital markets, foreign bank ...

  16. SS-shifted architecture Run roadfinder with default bank

    E-Print Network [OSTI]

    SS-shifted architecture Run roadfinder with default bank Run roadfinder with ss-shifted bank track fitter DONE DONE #12;SCT-first architecture Run full chain in SCT-only configuration ­ Road

  17. Synchronized droplet size measurements of intermittent coal-water slurry diesel sprays from an electronically-controlled accumulator fuel injection system

    E-Print Network [OSTI]

    Terracina, Dwayne Paul

    1993-01-01T23:59:59.000Z

    Experiments have been completed to characterize atomization of intermittent coal-water slurry sprays from an electronically controlled accumulator fuel injection system of a diesel fuel engine. A synchronized laser diffraction particle analyzer...

  18. Characteristics of rural bank acquisitions: a logit analysis

    E-Print Network [OSTI]

    Applewhite, Jennifer Lynn

    1994-01-01T23:59:59.000Z

    interstate acquisition of their banks, the rate of acquisitions soared. In 1978, Maine enacted legislation permitting interstate banking on a reciprocal basis. Until mid-1982, Maine was the only state with such a law. In 1982, both New York and Alaska... of U. S. banks using comparative performance profiles and logit analysis. Characteristics of acquired and acquiring banks are compared for five years before the acquisitions and found to have significantly different rates of return on assets...

  19. PROGRAMME SPECIFICATION Programme name Banking and International Finance

    E-Print Network [OSTI]

    Weyde, Tillman

    1 PROGRAMME SPECIFICATION KEY FACTS Programme name Banking and International Finance Award BSc The BSc (Hons) Banking and International Finance degree provides you with the academic knowledge skills and knowledge in the key areas of banking and international finance, including Financial

  20. NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK ) WEST VIRGINIA

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK ) WEST VIRGINIA ELECTRONICS DIVISION INTERNAL REPORT No. 159 INTERFERENCE POTENTIAL FOR RADIO ASTRONOMY OBSERVATIONS AT GREEN BANK, WEST VIRGINIA CRAIG ASTRONOMY OBSERVATIONS AT GREEN BANK, WEST VIRGINIA Craig R. Moore and James L. Dolan Introduction

  1. Credit Risk Systems Topics in Banking and Finance -

    E-Print Network [OSTI]

    Fulmek, Markus

    (securitization vs. credit derivatives) - Change in bank valuations, RoC · Project costs estimated at around 5 bps impact on the banking industry. · Strategic effects - Risk-sensitive capital requirements - Focus - How can the bank position itself strategically well and allocate the scarce resources where

  2. Inter-American Development Bank Sustainable Development Department

    E-Print Network [OSTI]

    Inter-American Development Bank Sustainable Development Department Environment Division Forest Correa Pertti Veijalainen Harri Ahveninen Inter-American Development Bank Washington, D.C. Sustainable. At the IDB the work was supervised by Kari Keipi of the Sustainable Development Department (SDS). Bank staff

  3. An Evaluation of a Dual Coriolis Meter System for In-Line Monitoring of Suspended Solids Concentrations in Radioactive Slurries

    SciTech Connect (OSTI)

    Hylton, T.D.

    2000-09-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) has millions of gallons of radioactive liquid and sludge wastes stored in underground tanks at several of its sites. In order to comply with various regulations and to circumvent potential problems associated with tank integrity, these wastes must be retrieved from the tanks, transferred to treatment facilities (or other storage locations), and processed to stable waste forms. The sludge wastes will typically be mobilized by some mechanical means (e.g., mixer pump, submerged jet) and mixed with the respective supernatants to create slurries that can be transferred by pipeline to the desired destination. Depending on the DOE site, these slurries may be transferred up to six miles. Since the wastes are radioactive, it is critically important for the transfers to be made without plugging a pipeline. To reduce such a risk, the relevant properties of the slurry (e.g., density, suspended solids concentration, viscosity, and particle size distribution) should be determined to be within acceptable limits prior to transfer. These properties should also be continuously monitored and controlled within specified limits while the transfer is in progress. The baseline method for determining the transport properties of slurries involves sampling and analysis; however, this method is time-consuming, and costly, and it does not provide real-time information. In addition, personnel who collect and analyze the samples are exposed to radiation. It is also questionable as to whether a laboratory analyst can obtain representative aliquots from the sample jar for these solid-liquid mixtures. The alternative method for determining the transport properties is in-line analysis. An in-line instrument is one that is connected to the process, analyzes the slurry as it flows through or by the instrument, and provides the results within seconds. This instrument can provide immediate feedback to operators so that, when necessary, the operators can respond quickly to counteract conditions that could lead to pipeline pluggage (e.g., backflushing the pipeline with water). One of the highest priorities is to determine the concentration of suspended solids in each of the slurries. In the project described in this report, two Coriolis meters were used simultaneously to create a suspended solids monitoring system that would provide accurate results with high precision. One Coriolis meter was used to measure the density of the slurry, while the other meter was used to measure the density of the carrier fluid (i.e., after filtration to remove the solid particles). The suspended solids concentration was then calculated from the density relationships between the slurry, the carrier fluid, and the dry solid particles. The latter density was determined by laboratory analysis and was assumed to be constant throughout the periods that grab samples were collected.

  4. Can a bank crisis break your heart?

    E-Print Network [OSTI]

    Stuckler, David; Meissner, Christopher M; King, Lawrence P

    2008-01-15T23:59:59.000Z

    to 2002 Results A system-wide banking crisis increases population heart disease mortality rates by 6.4% (95% CI: 2.5% to 10.2%, p < 0.01) in high income countries, after controlling for economic change, macroeconomic instability, and population age...

  5. Master of Science in Banking and Finance

    E-Print Network [OSTI]

    van der Torre, Leon

    Luxembourg School of Finance ­ Master of Science in Banking and Finance ­ FACULTYOFLAW School of Finance. In its seven years of existence, the University of Luxembourg has earned a place in Luxembourg's intellectual, economic and cultural life. This is particularly so in the area of finance

  6. Largest Ice-Bank Promotes Load Management

    E-Print Network [OSTI]

    Brarmann, G. L.

    1983-01-01T23:59:59.000Z

    of both the 30-year old, 265,000 square foot facility and the new 156,000 square foot Fred L. Hartley Research Center. The energy and demand savings resulting from the installation of the ice-bank system are significant. Large commercial and industrial...

  7. Essays on Banking Crises and Deposit Insurance 

    E-Print Network [OSTI]

    Wang, Wen-Yao

    2009-05-15T23:59:59.000Z

    .................................................... 16 2.3.3 The Partial Deposit Insurance System ......................... 18 2.3.3.1 Depositors? Monitoring.................................... 18 2.3.3.2 Banks? Gambling Behavior.............................. 22 2... of the Gambling Return .......................................................................... 38 viii CHAPTER Page 2.6 Conclusions .............................................................................. 40 III FINANCIAL FRAGILITY...

  8. Sam Madden Basically Everyone Except My Bank

    E-Print Network [OSTI]

    O'Brien, James F.

    Sam Madden Physicists Biologists Basically Everyone Except My Bank #12;· Benefit(DBMS) DBMS? · DBMS setup & boundary crossings painful ­ Especially if you have to do it multiple times! MATLAB a fleet of 40 cabs on Boston streets · Pipeline ­ Raw data in DBMS ­ Trajectories with Matlab ­ Queries

  9. December 9, 2013 DAVID L. BANKS

    E-Print Network [OSTI]

    Wolpert, Robert L

    . Aug. 1987 - May, 1993 Assistant Professor, Department of Statistics Carnegie Mellon University. Sept. 1986 - July 1987 Visiting Assistant Lecturer, Department of Pure Mathematics and Mathematical, Taylor & Francis, Boca Raton, FL. 2. D. Banks and E. P. Smith (2010). The Good Book: Thirty Years

  10. Development of rapid methods for estimating the fertilizing ability (nitrogen and potassium) of pig slurry and its changes during storage

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . The digester output expressed as ml biogas/M3 tank/day ranged from 0.4 to 1.3 m"11' m3. d over a period of 9 should lead to a better use of pig slurry in agriculture. Swine waste anaerobic digesters : technical More than 120 animal waste anaerobic digesters exist in France. They were built bet- ween 1979 and 1983

  11. Development of laboratory and process sensors to monitor particle size distribution of industrial slurries (including shape characterization). Final technical report

    SciTech Connect (OSTI)

    Pendse, H.P.; Goetz, P.J.; Sharma, A.; Han, W; Bliss, T.C.

    1996-10-01T23:59:59.000Z

    The overall goal of the Particle Size Distribution (PSD) sensor projects was to develop and commercialize a sensor system capable of particle analysis, in terms of size distributions, using concentrated suspensions at high solids concentrations. The early research was focused on application of ultrasonic spectroscopy of inorganic pigment slurries (e.g. titanium dioxide) commonly encountered on paper industry. During the project prototypes were tested in both academic and industrial laboratories. Work also involved successful field tests of the on-line prototype at a pigment manufacturing facility. Pen Kem continued the work at its cost beyond the initial funded period from March `92 to September `94. The first project (DE- FC05-88CE40684), which began in September 1988, culminated in a commercial laboratory instrument, Pen Kem AcoustoPhor {trademark} 8000, put on the market in June 1993. The follow-on project was aimed at investigation of shape and orientation effects on ultrasonic spectroscopy. A new cooperative agreement was awarded in September 1994 (DE-FC05-94CE40005) to develop shape characterization capabilities deemed critical by the clay industry. This follow-on project achieved following successes: A theoretical model was developed to account for the effects of size-dependent aspect ratios of spheroid particles under different orientations on ultrasound attenuation spectra of concentrated slurries. The theoretical model was confirmed by laboratory tests on kaolin slurries. An algorithm was developed to simulate evolution of particle orientation fields in simple squeezing flows.

  12. Plant response to FBC waste-coal slurry solid mixtures. [Quarterly] technical report, December 1--February 28, 1994

    SciTech Connect (OSTI)

    Darmody, R.G. [Illinois Univ., Urbana, IL (United States); Dunker, R.E. [Illinois Univ., Urbana, IL (United States). Dept. of Agronomy; Dreher, G.B.; Roy, W.R.; Steel, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1994-06-01T23:59:59.000Z

    The goal of this project is to test the feasibility of stabilizing coal slurry solids (CSS) wastes by directly seeding plants into the waste. This is not done conventionally because the waste can generate toxic amounts of sulfuric acid. Our approach is to neutralize the potential acidity by mixing fluidized bed combustion (FBC) waste into the slurry. If successful this approach would both help dispose of FBC wastes while providing a more economical slurry stabilization technique. The project involves growing forage plants in CSS-FBC mixtures in the greenhouse. This is the second quarter of the project. We have designed the experiment, secured greenhouse space, purchased the seeds, collected, dried, and are analyzing the FBC and CSS samples. The samples represent a typical range of properties. We retrieved two FBC and two CSS samples. One CSS sample had a relatively high CaCO{sub 3} content relative to the pyrite content and will require no FBC to neutralize the potential acidity. The other CSS sample will require from 4.2 to 2.7% FBC material to neutralize its potential acidity.

  13. Geochemistry of FBC waste-coal slurry solid mixtures. [Quarterly] technical report, March 1--May 31, 1993

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M. [Illinois State Geological Survey, Champaign, IL (United States)

    1993-09-01T23:59:59.000Z

    Three tasks are being conducted in this research project, all related to understanding the chemistry and mineralogy of the co-disposal of fluidized bed combustion (FBC) wastes with coal slurry solid (CSS) from a coal preparation plant. During coal cleaning, pyrite, other heavy minerals, and rock materials are rejected from the coal and discharged in an aqueous slurry to a slurry pond. After dewatering and abandonment of the pond, the pyrite may oxidize and produce acid that may migrate into the underlying groundwater system. If an alkaline product, such as FBC waste, is mixed with the CSS, then the acid will be effectively neutralized as it is produced. In Task 1, soluble components and acid-base reaction products from mixtures of FBC waste and CSS are being extracted for up to 180 days in a series of aqueous batch experiments. The final two sets of extractions, 90- and 180-days, were completed. The extracts and solids from these experiments were submitted for analysis of cations, anions, and mineralogy. In Task 2, 10 L of extracts from three mixtures of FBC waste and CSS were prepared for use in experiments to determine the adsorption/desorption reactions that occur between components of the extracts and three commonly occurring Illinois soils.

  14. Superclean coal-water slurry combustion testing in an oil-fired boiler

    SciTech Connect (OSTI)

    Miller, B.G.; Pisupati, S.V.; Poe, R.L.; Morrison, J.L.; Xie, J.; Walsh, P.M.; Wincek, R.T.; Clark, D.A.; Scaroni, A.W.

    1993-04-21T23:59:59.000Z

    The Pennsylvania State University is conducting a superclean coal-water slurry (SCCWS) program for the United States Department of Energy (DOE) and the Commonwealth of Pennsylvania with the objective of determining the capability of effectively firing SCCWS in an industrial boiler designed for heavy fuel oil. Penn State has entered into a cooperative agreement with DOE to determine if SCCWS (a fuel containing coal with 3.0 wt.% ash and 0.9 wt.% sulfur) can effectively be burned in a heavy fuel oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. The project will provide information on the design of new systems specifically configured to fire these clean coal-based fuels. The project consists of four phases: (1) design, permitting, and test planning, (2) construction and start up, (3) demonstration and evaluation (1,000-hour demonstration), and (4) program expansion (additional 1,000 hours of testing). The boiler testing wig determine if the SCCWS combustion characteristics, heat release rate, fouling and slagging behavior, corrosion and erosion limits, and fuel transport, storage, and handling characteristics can be accommodated in an oil-designed boiler system. In addition, the proof-of-concept demonstration will generate data to determine how the properties of SCCWS and its parent coal affect boiler performance. Economic factors associated with retrofitting boilers will be identified

  15. Modified sedimentation-dispersion model for solids in a three-phase slurry column

    SciTech Connect (OSTI)

    Smith, D.N.; Ruether, J.A.; Shah, Y.T.; Badgujar, M.N.

    1986-03-01T23:59:59.000Z

    Solids distribution data for a three-phase, batch-fluidized slurry bubble column (SBC) are presented, using air as the gas phase, pure liquids and solutions as the liquid phase, and glass beads and carborundum catalyst powder as the solid phase. Solids distribution data for the three-phase SBC operated in a continuous mode of operation are also presented, using nitrogen as the gas phase, water as the liquid phase, and glass beads as the solid phase. A new model to provide a reasonable approach to predict solids concentration distributions for systems containing polydispersed solids is presented. The model is a modification of standard sedimentation-dispersion model published earlier. Empirical correlations for prediction of hindered settling velocity and solids dispersion coefficient for systems containing polydispersed solids are presented. A new method of evaluating critical gas velocity (CGV) from concentrations of the sample withdrawn at the same port of the SBC is presented. Also presented is a new mapping for CGV which separates the two regimes in the SBC, namely, incomplete fluidization and complete fluidization.

  16. Attrition resistant catalysts for slurry-phase Fischer-Tropsch process

    SciTech Connect (OSTI)

    K. Jothimurugesan

    1999-11-01T23:59:59.000Z

    The Fischer-Tropsch (F-T) reaction provides a way of converting coal-derived synthesis gas (CO+H{sub 2}) to liquid fuels. Since the reaction is highly exothermic, one of the major problems in control of the reaction is heat removal. Recent work has shown that the use of slurry bubble column reactors (SBCRs) can largely solve this problem. Iron-based (Fe) catalysts are preferred catalysts for F-T because they are relatively inexpensive and possess reasonable activity for F-T synthesis (FTS). Their most advantages trait is their high water-gas shift (WGS) activity compared to their competitor, namely cobalt. This enables Fe F-T catalysts to process low H{sub 2}/CO ratio synthesis gas without an external shift reaction step. However, a serious problem with the use of Fe catalysts in a SBCR is their tendency to undergo attrition. This can cause fouling/plugging of downstream filters and equipment, make the separation of catalyst from the oil/wax product very difficult if not impossible, an d result in a steady loss of catalyst from the reactor. The objectives of this research were to develop a better understanding of the parameters affecting attrition of Fe F-T catalysts suitable for use in SBCRs and to incorporate this understanding into the design of novel Fe catalysts having superior attrition resistance.

  17. ASSESSMENT OF THE ABILITY OF STANDARD SLURRY PUMPS TO MIX SOLIDS WITH LIQUIDS IN TANK 50H

    SciTech Connect (OSTI)

    Poirier, M.

    2011-11-11T23:59:59.000Z

    Tank 50H is the feed tank for the Saltstone Production Facility (SPF). In the summer of 2011, Tank 50H contained two standard slurry pumps and two quad volute slurry pumps. Current requirements for mixing operation is to run three pumps for one hour prior to initiating a feed transfer to SPF. Savannah River Site (SRS) Liquid Waste moved both of the Quad Volute pumps from Tank 50H to Tank 51H to replace pumps in Tank 51H that were failing. In addition, one of the standard pumps in Tank 50H exhibits high seal leakage and vibration. SRS Liquid Waste requested Savannah River National Laboratory (SRNL) to conduct a study to evaluate the feasibility of mixing the contents of Tank 50H with one to three standard slurry pumps. To determine the pump requirements to mix solids with liquids in Tank 50H, the author reviewed the pilot-scale blending work performed for the Small Column Ion Exchange Process (SCIX), SRNL computational fluid dynamics (CFD) modeling, Tank 50H operating experience, and the technical literature, and applied the results to Tank 50H to determine the number, size, and operating parameters of pumps needed to mix the solid particles with the liquid in Tank 50H. The analysis determined pump requirements to suspend the solids with no 'dead zones', but did not determine the pump requirements to produce a homogeneous suspension. In addition, the analysis determined the pump requirements to prevent the accumulation of a large amount of solid particles under the telescoping transfer pump. The conclusions from this analysis follow: (1) The analysis shows that three Quad Volute pumps should be able to suspend the solid particles expected ({approx}0.6 g/L insoluble solids, {approx}5 micron) in Tank 50H. (2) Three standard slurry pumps may not be able to suspend the solid particles in Tank 50H; (3) The ability of two Quad Volute pumps to fully suspend all of the solid particles in Tank 50H is marginal; and (4) One standard slurry pump should be able to achieve a cleaning radius larger than 43.5 feet, which will prevent large amounts of solid particles from settling under the telescoping transfer pump (TTP). The report recommends a pump operating approach to maximize the achieved cleaning radius.

  18. TREATMENT OF CYANIDE SOLUTIONS AND SLURRIES USING AIR-SPARGED HYDROCYCLONE (ASH) TECHNOLOGY

    SciTech Connect (OSTI)

    Jan D. Miller; Terrence Chatwin; Jan Hupka; Doug Halbe; Tao Jiang; Bartosz Dabrowski; Lukasz Hupka

    2003-03-31T23:59:59.000Z

    The two-year Department of Energy (DOE) project ''Treatment of Cyanide Solutions and Slurries Using Air-Sparged Hydrocyclone (ASH) Technology'' (ASH/CN) has been completed. This project was also sponsored by industrial partners, ZPM Inc., Elbow Creek Engineering, Solvay Minerals, EIMCO-Baker Process, Newmont Mining Corporation, Cherokee Chemical Co., Placer Dome Inc., Earthworks Technology, Dawson Laboratories and Kennecott Minerals. Development of a new technology using the air-sparged hydrocyclone (ASH) as a reactor for either cyanide recovery or destruction was the research objective. It was expected that the ASH could potentially replace the conventional stripping tower presently used for HCN stripping and absorption with reduced power costs. The project was carried out in two phases. The first phase included calculation of basic processing parameters for ASH technology, development of the flowsheet, and design/adaptation of the ASH mobile system for hydrogen cyanide (HCN) recovery from cyanide solutions. This was necessary because the ASH was previously used for volatile organics removal from contaminated water. The design and modification of the ASH were performed with the help from ZPM Inc. personnel. Among the modifications, the system was adapted for operation under negative pressure to assure safe operating conditions. The research staff was trained in the safe use of cyanide and in hazardous material regulations. Cyanide chemistry was reviewed resulting in identification of proper chemical dosages for cyanide destruction, after completion of each pilot plant run. The second phase of the research consisted of three field tests that were performed at the Newmont Mining Corporation gold cyanidation plant near Midas, Nevada. The first field test was run between July 26 and August 2, 2002, and the objective was to demonstrate continuous operation of the modified ASH mobile system. ASH units were applied for both stripping and absorption, to recover cyanide, using the acidification-volatilization-reabsorption chemistry. Plant barren cyanide solution was used during the field tests. The original ASH system used for the field tests had been designed and fabricated by ZPM Inc. to remove volatile organic compounds from ground water. The system, even with a number of modifications, could not operate at optimum conditions for cyanide recovery. Reactors and pumps installed in the mobile system only allowed for the treatment of clear solutions, not slurries. Also the original mobile system was limited with respect to Q, the relative air flow rate, and the extent of recovery in a single stage. Due to the lack of automatic controls, the system required constant supervision of the University of Utah (U/U) team. In spite of these difficulties, application of the ASH mobile system was particularly attractive due to compactness of the apparatus and less than 1 second residence time of the aqueous phase in the cyclones. The performance of the ASH system was evaluated by comparison with theoretical predictions.

  19. Evaluation and Testing of the Cells Unit Crossflow Filter on INEEL Dissolved Calcine Slurries

    SciTech Connect (OSTI)

    N. R. Mann; T. A. Todd

    1998-08-01T23:59:59.000Z

    Development of waste treatment processes for the remediation of radioactive wastes is currently under way at the Idaho Nuclear Technology and Engineering Center (INTEC), located at the Idaho National Engineering and Environmental Laboratory (INEEL). INTEC, formerly known as the Idaho Chemical Processing Plant, previously reprocessed nuclear fuel to retrieve fissionable uranium. Liquid waste raffinates resulting from reprocessing were solidified into a granular calcine material. Approximately 4,000 m3 of calcine are presently being stored in concrete encased stainless steel bins at the INTEC. Greater than 99 weight percent of the calcine is non-radioactive inert materials. By separating radioactive and non-radioactive constituents into high and low activity fractions, a significant high-activity volume reduction can be achieved. Prior to separation, calcine dissolution must be performed. However, dissolution studies have shown a small percentage of solids present after dissolution. Undissolved solids (UDS) in solution must be removed prior to downstream processes such as solvent extraction and ion exchange. Furthermore, residual UDS in solutions have the potential to carry excess radioactivity into low activity waste fractions, if not removed. Filtration experiments were conducted at the INEEL using the Cell Unit Filter (CUF) on actual dissolved H-4 calcine and dissolved Run 1027 non-radioactive pilot plant calcine. The purpose of this testing was to evaluate the removal and operational efficiency of crossflow filtration on slurries of various solids loading. The solids loadings tested were, 0.19, 2.44 (H-4) and 7.94 (1027) weight percent, respectively. A matrix of test patterns was used to determine the effects of transmembrane pressure and axial velocity on filtrate flux. Filtrate flux rates for each solids loading displayed a high dependence on transmembrane pressure, indicating that pressure filtration resistance limits filtrate flux. Filtrate flux rates for all solids loading displayed a negative dependency on axial velocity. This would suggest axial velocities tested were efficient at removing filter cake.

  20. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 6, January 1, 1992--March 31, 1992

    SciTech Connect (OSTI)

    Marcelin, G.

    1992-06-24T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl ether (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: (1) Addition of isobutylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch. (2) Addition of isobutylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst. (3) Addition of methanol to slurry phase FT synthesis making iso-olefins. During the sixth quarter we completed the construction of the slurry bubble column reactor (SBCR), conducted initial shake-down experiments in a cold-flow mode, and finalized the selection process of the acid catalysts for conversion of syngas-produced alcohols and isobutylene to MTBE (scheme 2). Tasks 3, 4, and 5 are awaiting complete implementation of the SBCR system.

  1. A Novel Slurry-Based Biomass Reforming Process Final Technical Report

    SciTech Connect (OSTI)

    Sean C. Emerson; Timothy D. Davis; A. Peles; Ying She; Joshua Sheffel; Rhonda R. Willigan; Thomas H. Vanderspurt; Tianli Zhu

    2011-09-30T23:59:59.000Z

    This project was focused on developing a catalytic means of producing H2 from raw, ground biomass, such as fast growing poplar trees, willow trees, or switch grass. The use of a renewable, biomass feedstock with minimal processing can enable a carbon neutral means of producing H2 in that the carbon dioxide produced from the process can be used in the environment to produce additional biomass. For economically viable production of H2, the biomass is hydrolyzed and then reformed without any additional purification steps. Any unreacted biomass and other byproduct streams are burned to provide process energy. Thus, the development of a catalyst that can operate in the demanding corrosive environment and presence of potential poisons is vital to this approach. The concept for this project is shown in Figure 1. The initial feed is assumed to be a >5 wt% slurry of ground wood in dilute base, such as potassium carbonate (K2CO3). Base hydrolysis and reforming of the wood is carried out at high but sub-critical pressures and temperatures in the presence of a solid catalyst. A Pd alloy membrane allows the continuous removal of pure , while the retentate, including methane is used as fuel in the plant. The project showed that it is possible to economically produce H2 from woody biomass in a carbon neutral manner. Technoeconomic analyses using HYSYS and the DOE's H2A tool [1] were used to design a 2000 ton day-1 (dry basis) biomass to hydrogen plant with an efficiency of 46% to 56%, depending on the mode of operation and economic assumptions, exceeding the DOE 2012 target of 43%. The cost of producing the hydrogen from such a plant would be in the range of $1/kg H2 to $2/kg H2. By using raw biomass as a feedstock, the cost of producing hydrogen at large biomass consumption rates is more cost effective than steam reforming of hydrocarbons or biomass gasification and can achieve the overall cost goals of the DOE Fuel Cell Technologies Program. The complete conversion of wood to hydrogen, methane, and carbon dioxide was repeatedly demonstrated in batch reactors varying in size from 50 mL to 7.6 L. The different wood sources (e.g., swamp maple, poplar, and commercial wood flour) were converted in the presence of a heterogeneous catalyst and base at relatively low temperatures (e.g., 310 �������°C) at sub-critical pressures sufficient to maintain the liquid phase. Both precious metal and base metal catalysts were found to be active for the liquid phase hydrolysis and reforming of wood. Pt-based catalysts, particularly Pt-Re, were shown to be more selective toward breaking C-C bonds, resulting in a higher selectivity to hydrogen versus methane. Ni-based catalysts were found to prefer breaking C-O bonds, favoring the production of methane. The project showed that increasing the concentration of base (base to wood ratio) in the presence of Raney Ni catalysts resulted in greater selectivity toward hydrogen but at the expense of increasing the production of undesirable organic acids from the wood, lowering the amount of wood converted to gas. It was shown that by modifying Ni-based catalysts with dopants, it was possible to reduce the base concentration while maintaining the selectivity toward hydrogen and increasing wood conversion to gas versus organic acids. The final stage of the project was the construction and testing of a demonstration unit for H2 production. This continuous flow demonstration unit consisted of wood slurry and potassium carbonate feed pump systems, two reactors for hydrolysis and reforming, and a gas-liquid separation system. The technical challenges associated with unreacted wood fines and Raney Ni catalyst retention limited the demonstration unit to using a fixed bed Raney Ni catalyst form. The lower activity of the larger particle Raney Ni in turn limited the residence time and thus the wood mass flow feed rate to 50 g min-1 for a 1 wt% wood slurry. The project demonstrated continuous H2 yields with unmodified, fixed bed Raney Ni, from 63% to 100% with correspond

  2. The Impact of Information Technology in Nigeria's Banking Industry

    E-Print Network [OSTI]

    Oluwatolani, Oluwagbemi; Philip, Achimugu

    2011-01-01T23:59:59.000Z

    Today, information technology (IT) has become a key element in economic development and a backbone of knowledge-based economies in terms of operations, quality delivery of services and productivity of services. Therefore, taking advantage of information technologies (IT) is an increasing challenge for developing countries. There is now growing evidence that Knowledge-driven innovation is a decisive factor in the competitiveness of nations, industries, organizations and firms. Organizations like the banking sector have benefited substantially from e-banking, which is one among the IT applications for strengthening the competitiveness. This paper presents the current trend in the application of IT in the banking industries in Nigeria and gives an insight into how quality banking has been enhanced via IT. The paper further reveals that the deployment of IT facilities in the Nigerian Banking industry has brought about fundamental changes in the content and quality of banking business in the country. This analysis...

  3. Performance and economics of co-firing a coal/waste slurry in advanced fluidized-bed combustion

    SciTech Connect (OSTI)

    DeLallo, M.R.; Zaharchuk, R. [Parsons Power Group, Inc., Reading, PA (United States); Reuther, R.B.; Bonk, D.L. [USDOE Morgantown Energy Technology Center, WV (United States)

    1996-09-01T23:59:59.000Z

    This study`s objective was to investigate co-firing a pressurized fluidized-bed combustor with coal and refuse-derived fuel for the production of electricity and the efficient disposal of waste. Performance evaluation of the pressurized fluidized-bed combustor (PFBC) power plant co-fired with refuse-derived fuel showed only slightly lower overall thermal efficiency than similar sized plants without waste co-firing. Capital costs and costs of electricity are within 4.2 percent and 3.2 percent, respectively, of waste-free operation. The results also indicate that there are no technology barriers to the co-firing of waste materials with coal in a PFBC power plant. The potential to produce cost-competitive electrical power and support environmentally acceptable waste disposal exists with this approach. However, as part of technology development, there remain several design and operational areas requiring data and verification before this concept can realize commercial acceptance. 3 refs., 3 figs., 4 tabs.

  4. Near-neutral oxidation of pyrite in coal slurry solids. [Quarterly] technical report, September 1--November 30, 1994

    SciTech Connect (OSTI)

    Frost, J.K.; Dreher, G.B. [Illinois State Geological Survey (United States)

    1994-12-31T23:59:59.000Z

    In this research project we plan to determine the rate of oxidation of pyrite associated with coaly particles (coal slurry solid) when the pH of the surrounding environment is held at approximately 7.8. Coaly particles that contain pyrite are generated during the preparation of Illinois Basin coal for market. These particles are discharged to an impoundment, which eventually must be reclaimed. The purpose for reclamation is either to prevent the generation of acidic solution as the pyrite in the coal slurry solid reacts with air, or to prevent the migration of the acidic solution to a groundwater aquifer. The reclamation is usually accomplished by covering the impoundment with a four-foot-thick layer of topsoil. One possible alternative method for reclamation of a coal slurry impoundment is to mix in alkaline residue from the fluidized-bed combustion of coal. This codisposal would slow the production of acid and would also neutralize any acid produced. If the codisposal method is found to be environmentally acceptable, it will save the coal mining companies part of their cost of reclamation, and also provide a safe and useful disposal outlet for a portion of the residue that is generated by the fluidized-bed combustion of coal. During this quarter we purchased and set up two automatic titrators, which will be used in determining the rate of pyrite oxidation at nearly neutral pH. The titrators will provide a means for maintaining the pH at the desired level. The rate at which sulfate ion is produced as a result of pyrite oxidation will be used to measure the amount of pyrite oxidized over time.

  5. Plant response to FBC waste-coal slurry solid mixtures. Technical report, 1 March--31 May 1994

    SciTech Connect (OSTI)

    Darmody, R.G.; Dunker, R.E. [Univ. of Illinois, Urbana, IL (United States); Dreher, G.B.; Roy, W.R.; Steel, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1994-09-01T23:59:59.000Z

    The goal of this project is to test the feasibility of stabilizing coal slurry solids (CSS) wastes by directly seeding plants into the waste. This is not done conventionally because the waste can generate toxic amounts of sulfuric acid. The approach is to neutralize the potential acidity by mixing fluidized bed combustion (FBC) waste into the slurry. If successful, this approach would both help dispose of FBC wastes while providing a more economical slurry stabilization technique. The project involves growing forage plants in CSS-FBC mixtures in the greenhouse. In the first two quarters the authors designed the experiment, secured greenhouse space, purchased the seeds, collected, dried, analyzed the FBC and CSS samples. The samples represent a typical range of properties. They retrieved two FBC and two CSS samples. One CSS sample had a relatively high CaCO{sub 3} content relative to the pyrite content and required no FBC to neutralize the potential acidity. The other CSS sample required from 4.2 to 2.7% FBC material to neutralize its potential acidity. This report covers the third quarter of the project. The authors produced the CSS-FBC mixtures, analyzed the soil fertility parameters of the mixtures,, planted the crops, and monitored their growth. All mixtures support at least some plant growth, although some plants did better than others. It is too early to analyze the results statistically. Next quarter the plants will be harvested, yields calculated, mineral uptake evaluated, and a final report will be written on plant response to CSS-FBC mixtures.

  6. NREL Activities to Open Capital Market Investment and Bank Lending...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to Open Capital Market Investment and Bank Lending for Solar Deployment For NREL Finance Team Website Michael Mendelsohn and John Johsi U.S. Department of Energy Washington,...

  7. Asian Development Bank Technical Assistance Report on Building...

    Open Energy Info (EERE)

    of the Sustainable Energy Authority in Sri Lanka Jump to: navigation, search Name Asian Development Bank Technical Assistance Report on Building the Capacity of the Sustainable...

  8. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Golden, Jeffry

    2007-02-13T23:59:59.000Z

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  9. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Mincher, Bruce J. (3705 Creekside Dr., Idaho Falls, ID 83404); Curry, Randy Dale (1104 Merrill Ct., Columbia, MO 65203); Clevenger, Thomas E. (2512 Bluff Blvd., Columbia, MO 65201); Golden, Jeffry (12612 Cedarbrook La., Laurel, MD 20708)

    2000-01-01T23:59:59.000Z

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacting a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  10. Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries

    DOE Patents [OSTI]

    Mincher, Bruce J.; Curry, Randy Dale; Clevenger, Thomas E.; Golden, Jeffry

    2003-05-27T23:59:59.000Z

    A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacts a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

  11. Application of the Granuflow Process to Pipeline-Transported Coal Slurry CRADA PC96-010, Final Report

    SciTech Connect (OSTI)

    Richard P. Killmeyer; Wu-Wey Wen

    1997-09-24T23:59:59.000Z

    In light of the current difficulties in processing fine coal and the potential for a significant increase in fines due to more demanding quality specifications, the U.S. Department of Energy's Federal Energy Technology Center (FETC) has been involved in the reconstitution of the fine clean coal resulting from advanced fine coal cleaning technologies. FETC has invented and developed a new strategy that combines fine-coal dewatering and reconstitution into one step. The process reduces the moisture content of the clean coal, and alleviates handling problems related to dustiness, stickiness, flowability, and freezing. This process has been named the GranuFlow Process. Early work successfully demonstrated the feasibility of the process for laboratory-scale vacuum filtration dewatering using asphalt emulsion. Further tests focused on the application of the process to a screen-bowl centrifuge via batch mode tests at 300 lb/hr. These tests produced roughly the same results as the laboratory filtration tests did, and they included some testing using Orimulsion, a bitumen emulsion. The Orimulsion seemed to offer greater potential for moisture reduction and was less affected by colder slurry temperatures. Most recently, FETC has conducted several series of tests in its Coal Preparation Process Research Facility. These tests dramatically showed the visible difference in the dewatered product by applying the GranuFlow Process, turning it from a clumpy, wet, sticky material into a granular, dry free-flowing product. In addition, it verified previous results with improvements in moisture content, dustiness, stickiness, and freezing. Orimulsion showed a significant benefit over asphalt emulsion in moisture reduction at additions more than 5%. The overall goal of this project was to successfully apply FETC'S GranuFlow Process to improve coal slurry pipeline operations. Williams Technologies, Inc. (WTI), a leader in pipeline technology, has an interest in reducing the moisture content of the coal at the end of a coal slurry pipeline beyond what is being achieved with conventional mechanical dewatering technology. In addition, they would like to improve the handling characteristics of the dewatered coal. The GranuFlow Process has the potential of assisting in both of these areas, and its degree of applicability needed to be explored. A formal Cooperative Research and Development Agreement (CRADA) between FETC and WTI was signed in November 1996. This CRADA consisted of 6 tasks progressing from preliminary scoping tests to a commercial field test. Task 1 was completed in February 1997, and it provided sufficient information about the applicability of the GranuFlow Process to coal slurry pipelines that further testing was not needed at the present time. Thus the CRADA was terminated.

  12. Method of producing a colloidal fuel from coal and a heavy petroleum fraction. [partial liquefaction of coal in slurry, filtration and gasification of residue

    DOE Patents [OSTI]

    Longanbach, J.R.

    1981-11-13T23:59:59.000Z

    A method is provided for combining coal as a colloidal suspension within a heavy petroleum fraction. The coal is broken to a medium particle size and is formed into a slurry with a heavy petroleum fraction such as a decanted oil having a boiling point of about 300 to 550/sup 0/C. The slurry is heated to a temperature of 400 to 500/sup 0/C for a limited time of only about 1 to 5 minutes before cooling to a temperature of less than 300/sup 0/C. During this limited contact time at elevated temperature the slurry can be contacted with hydrogen gas to promote conversion. The liquid phase containing dispersed coal solids is filtered from the residual solids and recovered for use as a fuel or feed stock for other processes. The residual solids containing some carbonaceous material are further processed to provide hydrogen gas and heat for use as required in this process.

  13. Incentive and coordination issues in the mobile banking industry of Pakistan

    E-Print Network [OSTI]

    Ali, Tughral Turab

    2014-01-01T23:59:59.000Z

    With the introduction of Branch less Banking regulations in 2008 by the State Bank of Pakistan a new opportunity for banks and telecoms was created to service the needs of the 85% of Pakistanis who lacked any formal or ...

  14. Common risk factors in bank stocks

    E-Print Network [OSTI]

    Viale, Ariel Marcelo

    2007-09-17T23:59:59.000Z

    is calculated by dividing the book value of common equity for the fiscal year ending in calendar time t-1 by the market value of equity at the end of December of t-1. I formed 25 portfolios from the intersections of five size and five book-to-market quintiles.... The value-weighted monthly excess return on these 25 portfolios e ti R , is the dependent variables in time-series and cross-sectional regressions. Accounting information is taken both from the Y-9Cs and COMPUSTAT. Only commercial bank holding...

  15. Carbon Bank Ireland | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpen EnergyCallawayCapara Energia S A JumpOpenCarbon Bank

  16. Banks, Idaho: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: EnergyAvignon, France: EnergyBagleyBangladesh: EnergyBanks, Idaho:

  17. The Global Carbon Bank | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries PvtStratosolarTharaldson Ethanol LLC Jump to: navigation,Book:ClosingsCarbon Bank

  18. Bank of Italy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc JumpIM 2011-003Vermont: EnergyclockBank of Italy Jump to:

  19. Banks, Oregon: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc JumpIM 2011-003Vermont: EnergyclockBank of Italy7245°,

  20. Asian Development Bank Institute | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation in Carbon Capture andsoftwareAsian Age Enterprise LtdBank

  1. Examination Of Sulfur Measurements In DWPF Sludge Slurry And SRAT Product Materials

    SciTech Connect (OSTI)

    Bannochie, C. J.; Wiedenman, B. J.

    2012-11-29T23:59:59.000Z

    Savannah River National Laboratory (SRNL) was asked to re-sample the received SB7b WAPS material for wt. % solids, perform an aqua regia digestion and analyze the digested material by inductively coupled plasma - atomic emission spectroscopy (ICP-AES), as well as re-examine the supernate by ICP-AES. The new analyses were requested in order to provide confidence that the initial analytical subsample was representative of the Tank 40 sample received and to replicate the S results obtained on the initial subsample collected. The ICP-AES analyses for S were examined with both axial and radial detection of the sulfur ICP-AES spectroscopic emission lines to ascertain if there was any significant difference in the reported results. The outcome of this second subsample of the Tank 40 WAPS material is the first subject of this report. After examination of the data from the new subsample of the SB7b WAPS material, a team of DWPF and SRNL staff looked for ways to address the question of whether there was in fact insoluble S that was not being accounted for by ion chromatography (IC) analysis. The question of how much S is reaching the melter was thought best addressed by examining a DWPF Slurry Mix Evaporator (SME) Product sample, but the significant dilution of sludge material, containing the S species in question, that results from frit addition was believed to add additional uncertainty to the S analysis of SME Product material. At the time of these discussions it was believed that all S present in a Sludge Receipt and Adjustment Tank (SRAT) Receipt sample would be converted to sulfate during the course of the SRAT cycle. A SRAT Product sample would not have the S dilution effect resulting from frit addition, and hence, it was decided that a DWPF SRAT Product sample would be obtained and submitted to SRNL for digestion and sample preparation followed by a round-robin analysis of the prepared samples by the DWPF Laboratory, F/H Laboratories, and SRNL for S and sulfate. The results of this round-robin analytical study are the second subject of this report.

  2. DEMONSTRATION OF MIXING AND TRANSFERRING SETTLING COHESIVE SLURRY SIMULANTS IN THE AY-102 TANK

    SciTech Connect (OSTI)

    Adamson, D.; Gauglitz, P.

    2012-01-03T23:59:59.000Z

    In support of Hanford's feed delivery of high level waste (HLW) to the Waste Treatment and Immobilization Plant (WTP), pilot-scale testing and demonstrations with simulants containing cohesive particles were performed as a joint collaboration between Savannah River National Laboratory (SRNL) and the Pacific Northwest National Laboratory (PNNL) staff. The objective of the demonstrations was to determine the impact that cohesive particle interactions in the simulants, and the resulting non-Newtonian rheology, have on tank mixing and batch transfer of large and dense seed particles. The work addressed the impacts cohesive simulants have on mixing and batch transfer performance in a pilot-scale system. Kaolin slurries with a range of wt% concentrations to vary the Bingham yield stress were used in all the non-Newtonian simulants. To study the effects of just increasing the liquid viscosity (no yield stress) on mixing and batch transfers, a glycerol/water mixture was used. Stainless steel 100 micron particles were used as seed particles due to their density and their contrasting color to the kaolin and glycerol. In support of Hanford's waste certification and delivery of tank waste to the Waste Treatment and Immobilization Plant (WTP), Savannah River National Laboratory (SRNL) was tasked by Washington River Protection Solutions (WRPS) to evaluate the effectiveness of mixing and transferring tank waste in a Double Shell Tank (DST) to the WTP Receipt Tank. The work addresses the impacts cohesive simulants have on mixing and batch transfer performance. This work is follow-on to the previous tasks 'Demonstration of Mixer Jet Pump Rotational Sensitivity on Mixing and Transfers of the AY-102 Tank' and 'Demonstration of Simulated Waste Transfers from Tank AY-102 to the Hanford Waste Treatment Facility'. The cohesive simulants were investigated and selected jointly by SRNL and PNNL and a white paper was written on this evaluation. The testing and demonstrations of cohesive simulants was a joint effort performed as collaboration between SRNL and PNNL staff. The objective of the demonstrations was to determine the impact that cohesive particle interactions in the simulants have on tank mixing using the 1/22nd scale mixing system and batch transfer of seed particles. Seed particles are particles of contracting color added to mixing tank for visual inspection and an indicator of how well the contents of the tank are mixing. Also the seed particles serve as a measuring stick for how well the contents of the tank are transferred from the mixing tank during batch transfers. This testing is intended to provide supporting evidence to the assumption that Hanford Small Scale Mixing Demonstration (SSMD) testing in water is conservative.

  3. IMPROVING ENERGY EFFICIENCY VIA OPTIMIZED CHARGE MOTION AND SLURRY FLOW IN PLANT SCALE SAG MILLS

    SciTech Connect (OSTI)

    Raj K. Rajamani; Sanjeeva Latchireddi; Sravan K. Prathy; Trilokyanath Patra

    2005-12-01T23:59:59.000Z

    The U.S. mining industry operates approximately 80 semi-autogenesis grinding mills (SAG) throughout the United States. Depending on the mill size the SAG mills draws between 2 MW and 17 MW. The product from the SAG mill is further reduced in size using pebble crushers and ball mills. Hence, typical gold or copper ore requires between 2.0 and 7.5 kWh per ton of energy to reduce the particle size. Considering a typical mining operation processes 10,000 to 100,000 tons per day the energy expenditure in grinding is 50 percent of the cost of production of the metal. A research team from the University of Utah is working to make inroads into saving energy in these SAG mills. In 2003, Industries of the Future Program of the Department of Energy tasked the University of Utah team to build a partnership between the University and the mining industry for the specific purpose of reducing energy consumption in SAG mills. A partnership was formed with Cortez Gold Mines, Kennecott Utah Copper Corporation, Process Engineering Resources Inc. and others. In the current project, Cortez Gold Mines played a key role in facilitating the 26-ft SAG mill at Cortez as a test mill for this study. According to plant personnel, there were a number of unscheduled shut downs to repair broken liners and the mill throughput fluctuated depending on ore type. The University team had two softwares, Millsoft and FlowMod to tackle the problem. Millsoft is capable of simulating the motion of charge in the mill. FlowMod calculates the slurry flow through the grate and pulp lifters. Based on this data the two models were fine-tuned to fit the Cortez SAG will. In the summer of 2004 a new design of shell lifters were presented to Cortez and in September 2004 these lifters were installed in the SAG mill. By December 2004 Cortez Mines realized that the SAG mill is drawing approximately 236-kW less power than before while maintaining the same level of production. In the first month there was extreme cycling and operators had to learn more. Now the power consumption is 0.3-1.3 kWh/ton lower than before. The actual SAG mill power draw is 230-370 kW lower. Mill runs 1 rpm lesser in speed on the average. The re-circulation to the cone crusher is reduced by 1-10%, which means more efficient grinding of critical size material is taking place in the mill. All of the savings have resulted in reduction of operating cost be about $0.023-$0.048/ ton.

  4. Mathematical modeling of Fischer-Tropsch synthesis in an industrial slurry bubble column - article no. A 23

    SciTech Connect (OSTI)

    Nasim Hooshyar; Shohreh Fatemi; Mohammad Rahmani [University of Tehran (Iran)

    2009-07-01T23:59:59.000Z

    The increase in society's need for fuels and decrease in crude oil resources are important reasons to make more interest for both academic and industry in converting gas to liquids. Fischer-Tropsch synthesis is one of the most attractive methods of Gas-to-Liquids (GTL) processes and the reactor in which, this reaction occurs, is the heart of this process. This work deals with modeling of a commercial size slurry bubble column reactor by two different models, i.e. single bubble class model (SBCM) and double bubble class model (DBCM). The reactor is assumed to work in a churn-turbulent flow regime and the reaction kinetic is a Langmuir-Hinshelwood type. Cobalt-based catalyst is used for this study as it plays an important role in preparing heavy cuts and the higher yield of the liquid products. Parameter sensitivity analysis was carried out for different conditions such as catalyst concentration, superficial gas velocity, H{sub 2} over CO ratio, and column diameter. The results of the SBCM and DBCM revealed that there is no significant difference between single and double bubble class models in terms of temperature, concentration and conversion profiles in the reactor, so the simpler SBCM with less number of model parameters can be a good and reliable model of choice for analyzing the slurry bubble column reactors.

  5. Spatial Competition, Network Externalities, and Market Structure: An Application to Commercial Banking.

    E-Print Network [OSTI]

    Krishnamurthy, Prasad

    2011-01-01T23:59:59.000Z

    Calomiris, Charles, U.S. Banking Deregulation in HistoricalEvidence From Bank Branch Deregulation," Quarterly JournalStrahan, \\What Drives Deregulation: Economics and Politics

  6. Branching Restrictions, Financial Market Integration, and Firm Growth: Evidence from U.S. Banking Deregulation

    E-Print Network [OSTI]

    Krishnamurthy, Prasad

    2009-01-01T23:59:59.000Z

    Calomiris, Charles, U.S. Banking Deregulation in HistoricalEvidence From Bank Branch Deregulation," Quarterly JournalStrahan, \\What Drives Deregulation: Economics and Politics

  7. NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA ELECTRONICS DIVISION INTERNAL REPORT and Ionospheric Center, Arecibo, Puerto Rico by the National Radio Astronomy Observatory at Green Bank, West Virginia. The general design concept was taken from previous receivers assembled at NRAO. S. Weinreb and N

  8. NATIONAL RADIO ASTRONOMY OBSERVATORY Green, Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green, Bank, West Virginia Electronics Division Internal Rep preformed by the Standard Receiver Section of the National Radio Astronomy Observatory at Green Bank, West Virginia. The following breakdown was used to divide the costs into various categories: (1) Emckajs.c1 . 1

  9. Sustainability principles of the Asian Development Bank's (ADB's) energy

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Sustainability principles of the Asian Development Bank's (ADB's) energy policy: An opportunity Development Bank (ADB) energy projects to determine how they address the energy sector challenges facing) improving energy efficiency; (2) promoting renewable energy; (3) reducing energy poverty; and (4) enhancing

  10. Geologic Survey of the Ewing Bank, Northern Gulf of Mexico

    E-Print Network [OSTI]

    Brooks, Daniel M

    2014-04-04T23:59:59.000Z

    and distributions of the sediments that made up this two terrace bank system. A core from the surface of the top terrace contained coarse carbonate sands while the seafloor surrounding this bank was comprised of firm clay sediment. The characteristics of surficial...

  11. Synthesis of octane enhancers during slurry-phase Fischer-Tropsch. Quarterly technical progress report No. 7, April 1, 1992--June 30, 1992

    SciTech Connect (OSTI)

    Marcelin, G.

    1992-09-24T23:59:59.000Z

    The objective of this project is to investigate three possible routes to the formation of ethers, in particular methyl tert-butyl (MTBE), during slurry phase Fischer-Tropsch reaction. The three reaction schemes to be investigated are: addition of i-butylene during the formation of methanol and/or higher alcohols directly from CO and H{sub 2} during slurry-phase Fischer-Tropsch; addition of i-butylene to FT liquid products including alcohols in a slurry-phase reactor containing an MTBE or other acid catalyst; and addition of methanol to slurry phase FT synthesis making iso-olefins. During the seventh quarter we continued the shake down experiments for the SBCR and conducted an initial aborted run. We have also re-started experiments on Scheme 1, i.e., the addition of iso-butylene during CO hydrogenation. Using a dual bed arrangement, we have demonstrated the synthesis of MTBE from syngas and iso-butylene.

  12. Three dimensional numerical study of heat-transfer enhancement by nano-encapsulated phase change material slurry in microtube heat sinks

    E-Print Network [OSTI]

    Zhang, Yuwen

    impingement with nanoencapsulated phase change materials (NEP- CM) slurry as coolant. In this study such as a mixture of nano-encapsulated phase change material to dissipate the heat from the heat sourceThree dimensional numerical study of heat-transfer enhancement by nano-encapsulated phase change

  13. DEVELOPMENT OF A COMPUTATIONAL MULTIPHASE FLOW MODEL FOR FISCHER TROPSCH SYNTHESIS IN A SLURRY BUBBLE COLUMN REACTOR

    SciTech Connect (OSTI)

    Donna Post Guillen; Tami Grimmett; Anastasia M. Gribik; Steven P. Antal

    2010-09-01T23:59:59.000Z

    The Hybrid Energy Systems Testing (HYTEST) Laboratory is being established at the Idaho National Laboratory to develop and test hybrid energy systems with the principal objective to safeguard U.S. Energy Security by reducing dependence on foreign petroleum. A central component of the HYTEST is the slurry bubble column reactor (SBCR) in which the gas-to-liquid reactions will be performed to synthesize transportation fuels using the Fischer Tropsch (FT) process. SBCRs are cylindrical vessels in which gaseous reactants (for example, synthesis gas or syngas) is sparged into a slurry of liquid reaction products and finely dispersed catalyst particles. The catalyst particles are suspended in the slurry by the rising gas bubbles and serve to promote the chemical reaction that converts syngas to a spectrum of longer chain hydrocarbon products, which can be upgraded to gasoline, diesel or jet fuel. These SBCRs operate in the churn-turbulent flow regime which is characterized by complex hydrodynamics, coupled with reacting flow chemistry and heat transfer, that effect reactor performance. The purpose of this work is to develop a computational multiphase fluid dynamic (CMFD) model to aid in understanding the physico-chemical processes occurring in the SBCR. Our team is developing a robust methodology to couple reaction kinetics and mass transfer into a four-field model (consisting of the bulk liquid, small bubbles, large bubbles and solid catalyst particles) that includes twelve species: (1) CO reactant, (2) H2 reactant, (3) hydrocarbon product, and (4) H2O product in small bubbles, large bubbles, and the bulk fluid. Properties of the hydrocarbon product were specified by vapor liquid equilibrium calculations. The absorption and kinetic models, specifically changes in species concentrations, have been incorporated into the mass continuity equation. The reaction rate is determined based on the macrokinetic model for a cobalt catalyst developed by Yates and Satterfield [1]. The model includes heat generation due to the exothermic chemical reaction, as well as heat removal from a constant temperature heat exchanger. Results of the CMFD simulations (similar to those shown in Figure 1) will be presented.

  14. Forensic DNA data banking by state crime labortaories

    SciTech Connect (OSTI)

    McEwen, J.E. [Eunice Kennedy Shrive Center for Mental Retardation, Waltham, MA (United States)

    1995-06-01T23:59:59.000Z

    This article reports the results of a survey of the responsible crime laboratories in the first 19 states with legislation establishing forensic DNA data banks. The survey inquired into the labs` policies and procedures regarding the collection, storage, and analysis of samples; the retention of samples and data; search protocols; access to samples and data by third parties; and related matters. The research suggests that (1) the number of samples collected from convicted offenders for DNA data banking has far surpassed the number that have been analyzed; (2) data banks have already been used in a small but growing number of cases, to locate suspects and to identify associations between unresolved cases; (3) crime labs currently plan to retain indefinitely the samples collected for their data banks; and (4) the nature and extent of security safeguards that crime labs have implemented for their data banks vary among states. The recently enacted DNA Identification Act (1994) will provide $40 million in federal matching grants to states for DNA analysis activities, so long as states comply with specified quality-assurance standards, submit to external proficiency testing, and limit access to DNA information. Although these additional funds should help to ease some sample backlogs, it remains unclear how labs will allocate the funds, as between analyzing samples for their data banks and testing evidence samples in cases without suspects. The DNA Identification Act provides penalties for the disclosure or obtaining of DNA data held by data banks that participate in CODIS, the FBI`s evolving national network of DNA data banks, but individual crime labs must also develop stringent internal safeguards to prevent breaches of data-bank security. 9 refs., 3 tabs.

  15. Design of slurry bubble column reactors: novel technique for optimum catalyst size selection contractual origin of the invention

    DOE Patents [OSTI]

    Gamwo, Isaac K. (Murrysville, PA); Gidaspow, Dimitri (Northbrook, IL); Jung, Jonghwun (Naperville, IL)

    2009-11-17T23:59:59.000Z

    A method for determining optimum catalyst particle size for a gas-solid, liquid-solid, or gas-liquid-solid fluidized bed reactor such as a slurry bubble column reactor (SBCR) for converting synthesis gas into liquid fuels considers the complete granular temperature balance based on the kinetic theory of granular flow, the effect of a volumetric mass transfer coefficient between the liquid and the gas, and the water gas shift reaction. The granular temperature of the catalyst particles representing the kinetic energy of the catalyst particles is measured and the volumetric mass transfer coefficient between the gas and liquid phases is calculated using the granular temperature. Catalyst particle size is varied from 20 .mu.m to 120 .mu.m and a maximum mass transfer coefficient corresponding to optimum liquid hydrocarbon fuel production is determined. Optimum catalyst particle size for maximum methanol production in a SBCR was determined to be in the range of 60-70 .mu.m.

  16. Category 1: World's best journals Journal of Banking and Finance

    E-Print Network [OSTI]

    Zhang, Zhengjun

    Category 1: World's best journals Journal of Banking and Finance Journal of Finance Journal: Leading specialist journals Financial Analysts Journal Financial Management Journal of Business Finance and Accounting Journal of Empirical Finance Journal of Financial Econometrics Journal of Financial Education

  17. Standardization of information systems development processes and banking industry adaptations

    E-Print Network [OSTI]

    Tanrikulu, Zuhal

    2011-01-01T23:59:59.000Z

    This paper examines the current system development processes of three major Turkish banks in terms of compliance to internationally accepted system development and software engineering standards to determine the common process problems of banks. After an in-depth investigation into system development and software engineering standards, related process-based standards were selected. Questions were then prepared covering the whole system development process by applying the classical Waterfall life cycle model. Each question is made up of guidance and suggestions from the international system development standards. To collect data, people from the information technology departments of three major banks in Turkey were interviewed. Results have been aggregated by examining the current process status of the three banks together. Problematic issues were identified using the international system development standards.

  18. Transformation at Bank of America : an enterprise systems analysis

    E-Print Network [OSTI]

    Wallance, Daniel Isaac

    2011-01-01T23:59:59.000Z

    The focus of Bank of America's change management initiatives has shifted away from acquiring and integrating new businesses, a process it calls transition, and towards internal enterprise transformation through a process ...

  19. Energy Secretary Moniz and Export-Import Bank Chairman Hochberg...

    Office of Environmental Management (EM)

    win overseas deals and grow through exports. First Solar is one of America's largest PV solar companies and Ex-Im Bank has primarily financed their exports to India during the...

  20. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Elec-xonics Division Internal Report 140 MV The battery voltage as a function of temperature was also measured. The voltage was extremely

  1. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report with the calculator. It is constructed from CMOS logic for lowest power consumption and has a NiCad battery back

  2. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report an opposition battery, a DC Null Voltmeter and a recorder. With this set-up a variation in temperature of .02 °C

  3. Final report for 1.7 megajoule prototype bank testing

    SciTech Connect (OSTI)

    NONE

    1995-10-01T23:59:59.000Z

    American Control Engineering is pleased to submit to LLNL this Final Report describing the final assembly and preliminary testing of the 1.7 megajoule prototype capacitor bank that is located at our facility. The purpose of this test program was to evaluate and characterize the performance of this capacitor bank. These tests were necessary in order to proceed with the design of a final building block module that is to be used to create a reliable and cost effective multi-hundred megajoule energy storage system. The period of performance covered by this contract is from January 1, 1991 through August 31, 1992. American Control Engineering has provided all of the necessary facilities, personnel and materials that were required to perform this testing effort (except for the existing capacitor bank, the LLNL provided flashlamp assembly and E-size ignitron switch tube), An overall view of the assembled capacitor bank system as it appeared at the completion of this subcontract is shown. The initial statement-of-work for the testing and characterization of the capacitor bank was as follows: (1) Measure all of the principal electrical parameters for the 1.7 megajoule prototype capacitor bank at low voltage before proceeding to high voltage testing. This low voltage testing is to include measurement of both normal and fault current and voltage waveforms, starting with the smallest building block grouping and proceeding systematically through to the capacitor bank load. (2) Assemble and attach each of the major subsystem elements to the capacitor bank as they are required for low voltage testing including the ignition output switch structure, coaxial transmission line and load assembly. (3) Make comparison of the test results collected through low voltage testing with those forecasted by the computer mode. Evaluate and resolve any discrepancies between the two results until the computer model achieves reasonable agreement with the actual measured test results.

  4. Introduction to duration concepts: application to bank management

    E-Print Network [OSTI]

    Meyers, Alison J.

    1985-01-01T23:59:59.000Z

    limitations due to over- simplifications. The balance sheet used in DGame is far too simpli- fied to use in understanding duration analysis in the real world. -24- First, banks carry many more different types of liabilities than just CD deposits. Other...INTRODUCTION TO DURATION CONCEPTS: APPLICATION TO BANK MANAGEMENT A Professional Paper by Alison J. Meyers Submitted to the College of Agriculture of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER...

  5. The local knowledge bank : uncovering the processes and networks of social innovation at Brazil's first community bank

    E-Print Network [OSTI]

    Gao, Ying, M.C.P. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    In this thesis, I apply a case study method to examine the processes of knowledge management both within the neighborhood, and in institutional partnerships, by Banco Palmas, Brazil's first community development bank, as ...

  6. WASHING AND DEMONSTRATION OF THE DWPF FLOWSHEET IN THE SRNL SHIELDED CELLS USING POST ALUMINUM DISSOLUTION TANK 51 SLUDGE SLURRY

    SciTech Connect (OSTI)

    Pareizs, J; Cj Bannochie, C; Damon Click, D; Erich Hansen, E; Dan Lambert, D; Michael Stone, M

    2008-04-28T23:59:59.000Z

    The remaining contents of Tank 51 from Sludge Batch 4 will be blended with Purex sludge from Tank 7 to constitute Sludge Batch 5 (SB5). The Savannah River Site (SRS) Liquid Waste Organization (LWO) has completed caustic addition to Tank 51 to perform low temperature Al dissolution on the H-Modified (HM) sludge material to reduce the total mass of sludge solids and Al being fed to the Defense Waste Processing Facility (DWPF). The Savannah River National Lab (SRNL) has also completed aluminum dissolution tests using a 3-L sample of Tank 51 sludge slurry through funding by DOE EM-21. This report documents assessment of downstream impacts of the aluminum dissolved sludge, which were investigated so technical issues could be identified before the start of SB5 processing. This assessment included washing the aluminum dissolved sludge to a Tank Farm projected sodium concentration and weight percent insoluble solids content and DWPF Chemical Process Cell (CPC) processing using the washed sludge. Based on the limited testing, the impact of aluminum dissolution on sludge settling is not clear. Settling was not predictable for the 3-L sample. Compared to the post aluminum dissolution sample, settling after the first wash was slower, but settling after the second wash was faster. For example, post aluminum dissolution sludge took six days to settle to 60% of the original sludge slurry height, while Wash 1 took nearly eight days, and Wash 2 only took two days. Aluminum dissolution did impact sludge rheology. A comparison between the as-received, post aluminum dissolution and washed samples indicate that the downstream materials were more viscous and the concentration of insoluble solids less than that of the starting material. This increase in viscosity may impact Tank 51 transfers to Tank 40. The impact of aluminum dissolution on DWPF CPC processing cannot be determined because acid addition for the Sludge Receipt and Adjustment Tank (SRAT) cycle was under-calculated and thus under-added. Although the sludge was rheologically thick throughout the SRAT and Slurry Mix Evaporator (SME) cycles, this may have been due to the under addition of acid. Aluminum dissolution did, however, impact analyses of the SRAT receipt material. Two methods for determining total base yielded significantly different results. The high hydroxide content and the relatively high soluble aluminum content of the washed post aluminum dissolution sludge likely contributed to this difference and the ultimate under addition of acid. It should be noted that the simulant used to provide input for the SRAT cycle was an inadequate representation of the waste in terms of acid demand, likely due to the differences in the form of aluminum and hydroxide in the simulant and actual waste. Based on the results of this task, it is recommended that: (1) Sludge settling and rheology during washing of the forthcoming Sludge Batch 5 qualification sample be monitored closely and communicated to the Tank Farm. (2) SRNL receive a sample of Tank 51 after all chemical additions have been made and prior to the final Sludge Batch 5 decant for rheological assessment. Rheology versus wt% insoluble solids will be performed to determine the maximum amount of decant prior to the Tank 51 to Tank 40 transfer. (3) As a result of the problem with measuring total base and subsequently under-calculating acid for the DWPF CPC processing of the post aluminum dissolution sludge; (4) Studies to develop understanding of how the sludge titrates (i.e., why different titration methods yield different results) should be performed. (5) Simulants that better match the properties of post aluminum dissolution sludge should be developed. (6) Work on developing an acid calculation less dependant on the total base measurement should be continued.

  7. The effect of heat, cysteine, glutathione, and [gamma]-glutamyl transpeptidase on the production of volatile sulfhdryl compounds in cheddar cheese slurries

    E-Print Network [OSTI]

    Staff, Cynthia Ann

    1991-01-01T23:59:59.000Z

    were not significantly affected by the heat treatment of the milk. Cysteine, glutathione, and Y-glutamyl transpep- tidase were added to slurries prepared from Cheddar cheese manufactured from raw milk, milk heated at 60 C for 15 min, and milk... with added glutathione and v -glutamyl transpepti- dase where carbonyl sulfide production was increased. DEDICATION I dedicate this thesis to the loving memory of my brother, Gregory Dean Staff. By knowing my brother, I learned patience, understanding...

  8. Geochemistry of FBC waste-coal slurry solid mixtures. Final technical report, September 1, 1992--August 31, 1993

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D.; Heidari, M. [Illinois State Geological Survey, Champaign, IL (United States)

    1993-12-31T23:59:59.000Z

    The three tasks conducted in this research project were related to understanding the geochemistry and mineralogy of the co-disposal of fluidized bed combustion (FBC) wastes with coal slurry solid (CSS) from a coal preparation plant. During coal cleaning, pyrite, other heavy minerals and rock fragments are separated from the coal and discharged in an aqueous slurry to an impoundment. After dewatering and closure of the impoundment, the pyrite can oxidize and produce acid that can migrate into the underlying groundwater system. The addition of FBC residue to the CSS will buffer the pore water pH to approximately 7.8. In Task 1, soluble components and acid-base react ion products from mixtures of FBC waste and CSS were extracted for 3 to 180 days in aqueous batch experiments. The results of these extractions showed that, eventually, the extracts would attain a pH between 7 and 8. That pH range is characteristic of an aqueous system in equilibrium with calcite, gypsum, and atmospheric carbon dioxide. After 180 days, the mean calcium concentration in all of the extracts was 566{+-}18 mg/L and sulfate concentrations averaged 2420{+-}70 mg/L. In Task 2, three extracts from CSS/FBC residue mixtures were prepared for use in experiments to determine the adsorption/desorption reactions that occur between solutes in the extracts and two common Illinois soils. Time constraints allowed the use of only two of the extracts for adsorption studies. The concentrations of most solutes were not significantly lowered by adsorption at the pH of the extract-soil suspension, nor over a wide range of pH. The results suggest that the type of solutes that were released by the CSS/FBC residue mixture would not be attenuated by adsorption. In a modified Task 3, the literature on the kinetics of pyrite oxidation in near-neutral to alkaline pH was reviewed in preparation for future development of a computer model of pyrite oxidation in CSS/FBC residue codisposal.

  9. Slurry phase iron catalysts for indirect coal liquefaction. First semi-annual progress report, July 5, 1995--January 4, 1996

    SciTech Connect (OSTI)

    Datye, A.K.

    1996-02-08T23:59:59.000Z

    Objectives are to study factors controlling attrition resistance of slurry phase Fe catalysts, synthesize novel precipitated catalysts that overcome some of the limitations of current generation catalysts, and study catalyst-binder interactions using model catalysts. A study of Fe/silica (binder) interactions has been started. Study of effects of Cu on reducibility of Fe catalysts showed that small amounts of Cu can facilitate reduction of Fe{sub 2}O{sub 3} to {alpha}-Fe. Work with Nancy Jackson (Sandia) on carbon deposits in Fe F-T catalysts showed good correlation between peak temperature in TPR and the carbon as seen by TEM. Analyses of samples from Dr. Burtron Davis (U. KY) by XRD and TEM showed that the active catalyst contains small crystallites of iron carbide while the deactivated catalyst had significant transformation into large magnetite crystals. It is felt that improper passivation of these catalysts can lead to mis-identification of the phase in working F-T catalysts.

  10. RESULTS FOR THE MAY 19, 2010 INADVERTENT TRANSFER TO THE SALTSTONE DISPOSAL FACILITY SLURRY: SAMPLE ANALYTICAL RESULTS

    SciTech Connect (OSTI)

    Reigel, M.; Cozzi, A.

    2010-08-17T23:59:59.000Z

    This report details the chemical analysis results for the characterization of the May 19, 2010 inadvertent transfer from the Saltstone Production Facility (SPF) to the Saltstone Disposal Facility (SDF). On May 19, 2010, the Saltstone Processing Facility (SPF) inadvertently transferred approximately 1800 gallons of untreated low-level salt solution from the salt feed tank (SFT) to Cell F of Vault 4. The transfer was identified and during safe configuration shutdown, approximately 70 gallons of SFT material was left in the Saltstone hopper. After the shutdown, the material in the hopper was undisturbed, while the SFT has received approximately 1400 gallons of drain water from the Vault 4 bleed system. The drain water path from Vault 4 to the SFT does not include the hopper (Figure 1); therefore it was determined that the material remaining in the hopper was the most representative sample of the salt solution transferred to the vault. To complete item No.5 of Reference 1, Savannah River National Laboratory (SRNL) was asked to analyze the liquid sample retrieved from the hopper for pH, and metals identified by the Resource Conservation and Recovery Act (RCRA). SRNL prepared a report to complete item No.5 and determine the hazardous nature of the transfer. Waste Solidification Engineering then instructed SRNL to provide a more detailed analysis of the slurried sample to assist in the determination of the portion of Tank 50 waste in the hopper sample.

  11. Incorporation of Reaction Kinetics into a Multiphase, Hydrodynamic Model of a Fischer Tropsch Slurry Bubble Column Reactor

    SciTech Connect (OSTI)

    Donna Guillen, PhD; Anastasia Gribik; Daniel Ginosar, PhD; Steven P. Antal, PhD

    2008-11-01T23:59:59.000Z

    This paper describes the development of a computational multiphase fluid dynamics (CMFD) model of the Fischer Tropsch (FT) process in a Slurry Bubble Column Reactor (SBCR). The CMFD model is fundamentally based which allows it to be applied to different industrial processes and reactor geometries. The NPHASE CMFD solver [1] is used as the robust computational platform. Results from the CMFD model include gas distribution, species concentration profiles, and local temperatures within the SBCR. This type of model can provide valuable information for process design, operations and troubleshooting of FT plants. An ensemble-averaged, turbulent, multi-fluid solution algorithm for the multiphase, reacting flow with heat transfer was employed. Mechanistic models applicable to churn turbulent flow have been developed to provide a fundamentally based closure set for the equations. In this four-field model formulation, two of the fields are used to track the gas phase (i.e., small spherical and large slug/cap bubbles), and the other two fields are used for the liquid and catalyst particles. Reaction kinetics for a cobalt catalyst is based upon values reported in the published literature. An initial, reaction kinetics model has been developed and exercised to demonstrate viability of the overall solution scheme. The model will continue to be developed with improved physics added in stages.

  12. REVIEW OF EXPERIMENTAL CAPABILITIES AND HYDRODYNAMIC DATA FOR VALIDATION OF CFD-BASED PREDICTIONS FOR SLURRY BUBBLE COLUMN REACTORS

    SciTech Connect (OSTI)

    Donna Post Guillen; Daniel S. Wendt; Steven P. Antal; Michael Z. Podowski

    2007-11-01T23:59:59.000Z

    The purpose of this paper is to document the review of several open-literature sources of both experimental capabilities and published hydrodynamic data to aid in the validation of a Computational Fluid Dynamics (CFD) based model of a slurry bubble column (SBC). The review included searching the Web of Science, ISI Proceedings, and Inspec databases, internet searches as well as other open literature sources. The goal of this study was to identify available experimental facilities and relevant data. Integral (i.e., pertaining to the SBC system), as well as fundamental (i.e., separate effects are considered), data are included in the scope of this effort. The fundamental data is needed to validate the individual mechanistic models or closure laws used in a Computational Multiphase Fluid Dynamics (CMFD) simulation of a SBC. The fundamental data is generally focused on simple geometries (i.e., flow between parallel plates or cylindrical pipes) or custom-designed tests to focus on selected interfacial phenomena. Integral data covers the operation of a SBC as a system with coupled effects. This work highlights selected experimental capabilities and data for the purpose of SBC model validation, and is not meant to be an exhaustive summary.

  13. REVIEW OF EXPERIMENTAL CAPABILITIES AND HYDRODYNAMIC DATA FOR VALIDATION OF CFD BASED PREDICTIONS FOR SLURRY BUBBLE COLUMN REACTORS

    SciTech Connect (OSTI)

    Donna Post Guillen; Daniel S. Wendt

    2007-11-01T23:59:59.000Z

    The purpose of this paper is to document the review of several open-literature sources of both experimental capabilities and published hydrodynamic data to aid in the validation of a Computational Fluid Dynamics (CFD) based model of a slurry bubble column (SBC). The review included searching the Web of Science, ISI Proceedings, and Inspec databases, internet searches as well as other open literature sources. The goal of this study was to identify available experimental facilities and relevant data. Integral (i.e., pertaining to the SBC system), as well as fundamental (i.e., separate effects are considered), data are included in the scope of this effort. The fundamental data is needed to validate the individual mechanistic models or closure laws used in a Computational Multiphase Fluid Dynamics (CMFD) simulation of a SBC. The fundamental data is generally focused on simple geometries (i.e., flow between parallel plates or cylindrical pipes) or custom-designed tests to focus on selected interfacial phenomena. Integral data covers the operation of a SBC as a system with coupled effects. This work highlights selected experimental capabilities and data for the purpose of SBC model validation, and is not meant to be an exhaustive summary.

  14. Coal slurry combustion optimization on single cylinder engine. Task 1.1.2.2.2, Combustion R&D

    SciTech Connect (OSTI)

    Not Available

    1992-09-01T23:59:59.000Z

    Under the sponsorship of the US Department of Energy, Morgantown Energy Technology Center, GE Transportation System has been conducting a proof of concept program to use coal water slurry (CWS) fuel to power a diesel engine locomotive since 1988. As reported earlier [1], a high pressure electronically controlled accumulator injector using a diamond compact insert nozzle was developed for this project. The improved reliability and durability of this new FIE allowed for an improved and more thorough study of combustion of CWS fuel in a diesel engine. It was decided to include a diesel pilot fuel injector in the combustion system mainly due to engine start and low load operation needs. BKM, Inc. of San Diego, CA was contracted to develop the electronic diesel fuel pilot/starting FIE for the research engine. As a result, the experimental combustion study was very much facilitated due to the ability of changing pilot/CWS injection timings and quantities without having to stop the engine. Other parameters studied included combustion chamber configuration (by changing CWS fuel injector nozzle hole number/shape/angle), as well as injection pressure. The initial phase of this combustion study is now complete. The results have been adopted into the design of a 12 cylinder engine FIE, to be tested in 1992. This paper summarizes the main findings of this study.

  15. Scaling Laws for Reduced-Scale Tests of Pulse Jet Mixing Systems in Non-Newtonian Slurries: Mixing Cavern Behavior

    SciTech Connect (OSTI)

    Meyer, Perry A.; Kurath, Dean E.; Bamberger, Judith A.; Barnes, Steven M.; Etchells, Arthur W.

    2006-03-02T23:59:59.000Z

    The Waste Treatment Plant (WTP) under construction at the Hanford Site will use pulse jet mixer (PJM) technology for mixing and gas retention control applications in tanks expected to contain waste slurries exhibiting a non-Newtonian rheology. This paper presents the results of theoretical and experimental studies undertaken to establish a methodology to perform reduced-scale mixing tests with PJM systems in non-Newtonian fluids. A theoretical model for mixing cavern formation from steady and pulsed jets is developed and compared with data from a single unsteady jet in a yield stress simulant. Dimensional analysis is used to identify the important dimensionless parameters affecting mixing performance in more complex systems. Scaling laws are proposed based on the modeling and dimensional analysis. Experimental validation of the scaling laws governing unsteady jet mixing in non-Newtonian fluids are also presented. Tests were conducted at three scales using two non-Newtonian simulants. The data were compared non-dimensionally, and the important scale laws were confirmed. The key dimensionless parameters were found to be the Strouhal number (which describes unsteady pulse jet mixer operation), the yield Reynolds number (which governs cavern formation due to non-Newtonian fluid behavior), and the viscous Reynolds number (which determines the flow regime and the degree of turbulence). The experimentally validated scaling laws provide the basis for reduced scale testing of prototypic WTP mixing systems. It is argued that mixing systems developed from reduced scale testing will produce conservative designs at full scale.

  16. Assessing and Reducing Miscellaneous Electric Loads (MELs) in Banks

    SciTech Connect (OSTI)

    Rauch, Emily M.

    2012-09-01T23:59:59.000Z

    Miscellaneous electric loads (MELs) are loads outside of a building's core functions of heating, ventilating, air conditioning, lighting, and water heating. MELs are a large percentage of total building energy loads. This report reviews methods for reducing MELs in Banks. Reducing MELs in a bank setting requires both local and corporate action. Corporate action centers on activities to prioritize and allocate the right resources to correct procurement and central control issues. Local action includes branch assessment or audits to identify specific loads and needs. The worksheet at the end of this guide can help with cataloging needed information and estimating savings potential. The following steps provide a guide to MEL reductions in Bank Branches. The general process has been adapted from a process developed for office buildings the National Renewable Energy Laboratory (NREL, 2011).

  17. Multi-scale texture analysis of remote sensing images using gabor filter banks and wavelet transforms

    E-Print Network [OSTI]

    Ravikumar, Rahul

    2009-05-15T23:59:59.000Z

    to texture information extraction and utilization. This research focuses on the use of multi-scale image texture analysis techniques using Gabor filter banks and Wavelet transformations. Gabor filter banks model texture as irradiance patterns in an image over...

  18. Integrative Innovation Strategy : a case study of Guaranty Trust Bank plc (GTBank)

    E-Print Network [OSTI]

    Adeyeri, Modupe Oludare

    2014-01-01T23:59:59.000Z

    Since starting in 1990, Guaranty Trust Bank plc (GTBank) has emerged as one of the strongest players in the African Banking space despite the challenging business climate. Firms operating in similar conditions - geographies, ...

  19. Waste Management Fault Tree Data Bank (WM): 1992 status report

    SciTech Connect (OSTI)

    Baughman, D.F.; Hang, P.; Townsend, C.S.

    1993-08-30T23:59:59.000Z

    The Risk Assessment Methodology Group (RAM) of the Nuclear Process Safety Research Section (NPSR) maintains a compilation of incidents that have occurred in the Waste Management facilities. The Waste Management Fault Tree Data Bank (WM) contains more than 35,000 entries ranging from minor equipment malfunctions to incidents with significant potential for injury or contamination of personnel. This report documents the status of the WM data bank including: availability, training, source of data, search options, and usage, to which these data have been applied. Periodic updates to this memorandum are planned as additional data or applications are acquired.

  20. THE DISTRIBUTION OF THE HUMPBACK WHALE, MEGAPTERA NOVAEANGLIAE, ON GEORGES BANK AND IN

    E-Print Network [OSTI]

    on Silver and Navidad Banks which lie north ofthe Dominican Republic (Winn et al. 1975; Balcomb and Nichols

  1. Co-combustion of refuse derived fuel and coal in a cyclone furnace at the Baltimore Gas and Electric Company, C. P. Crane Station

    SciTech Connect (OSTI)

    Not Available

    1982-03-01T23:59:59.000Z

    A co-combustion demonstration burn of coal and fluff refuse-derived fuel (RDF) was conducted by Teledyne National and Baltimore Gas and Electric Company. This utility has two B and W cyclone furnaces capable of generating 400 MW. The facility is under a prohibition order to convert from No. 6 oil to coal; as a result, it was desirable to demonstrate that RDF, which has a low sulfur content, can be burned in combination with coals containing up to 2% sulfur, thus reducing overall sulfur emissions without deleterious effects. Each furnace consists of four cyclones capable of generating 1,360,000 pounds per hour steam. The tertiary air inlet of one of the cyclones was modified with an adapter to permit fluff RDF to be pneumatically blown into the cyclone. At the same time, coal was fed into the cyclone furnace through the normal coal feeding duct, where it entered the burning chamber tangentially and mixed with the RDF during the burning process. Secondary shredded fluff RDF was prepared by the Baltimore County Resource Recovery Facility. The RDF was discharged into a receiving station consisting of a belt conveyor discharging into a lump breaker, which in turn, fed the RDF into a pneumatic line through an air-lock feeder. A total of 2316 tons were burned at an average rate of 5.6 tons per hour. The average heat replacement by RDF for the cyclone was 25%, based on Btu input for a period of forty days. The range of RDF burned was from 3 to 10 tons per hour, or 7 to 63% heat replacement. The average analysis of the RDF (39 samples) for moisture, ash, heat (HHV) and sulfur content were 18.9%, 13.4%, 6296 Btu/lb and 0.26% respectively. RDF used in the test was secondary shredded through 1-1/2 inch grates producing the particle size distribution of from 2 inches to .187 inches. Findings to date after inspection of the boiler and superheater indicate satisfactory results with no deleterious effects from the RDF.

  2. Directions to the National Radio Astronomy Observatory Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    Directions to the National Radio Astronomy Observatory Green Bank, West Virginia From Charleston Roanoke, VA: Via I-64 West, exit at White Sulphur Springs (Exit 181) and take Rt. 92 North to Green Bank, then take Rt. 92 South to Green Bank. From Washington DC: Via I-66 West to I-81 South. Option 1: Take I-81

  3. OVERSAMPLING COMPLEX-MODULATED DIGITAL FILTER BANK PAIRS SUITABLE FOR EXTENSIVE SUBBAND-SIGNAL AMPLIFICATION

    E-Print Network [OSTI]

    Göckler, Heinz G.

    subband-signals by a synthe- sis filter bank (SFB). Due to low battery energy available in hear- ing aidsOVERSAMPLING COMPLEX-MODULATED DIGITAL FILTER BANK PAIRS SUITABLE FOR EXTENSIVE SUBBAND@nt.rub.de, web: www.dsv.rub.de ABSTRACT Oversampling, complex-modulated digital subband coder filter banks

  4. E-Business Value Creation in Jordanian Banking Services Industry: An Empirical Analysis of Key Factors

    E-Print Network [OSTI]

    E-Business Value Creation in Jordanian Banking Services Industry: An Empirical Analysis of Key an extended conceptual research model for assessing the value of e-business at the bank level environment) that may affect value creation of carrying out e- business in Jordanian banking sector. Survey

  5. Integrated models of capital adequacy Why banks are undercapitalised

    E-Print Network [OSTI]

    McNeil, Alexander J.

    criticism. We propose that the current methodological void at the heart of Basel II, Pillar 2 is filled applied to the design of financial regulation...the crisis which began in the US sub-prime mortgage market in early 2007 and then spread broadly and deeply was not the first banking crisis. It was closer to the 100

  6. Statistics and Quantitative Risk Management for Banking and In-

    E-Print Network [OSTI]

    Embrechts, Paul

    Statistics and Quantitative Risk Management for Banking and In- surance Paul Embrechts Risk practice Abstract As an emerging field of applied research, Quantitative Risk Management (QRM) poses a lot management. Topics treated include the use of risk measures in regulation, including their statistical

  7. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia ELECTRONICS DIVISION INTERNAL REPORT the earth's axis and perpendic- ular to the Greenwich Meridian, call it the east-west plane. A telescope's rectangular cordinate components (x,y,z) are X = 882880.0208m Distance from the east-west plane, Greenwich

  8. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report which has been used on all systems mounted in the past at the 300-foot telescope. The East and West 14 are so made to allow the East and West 1410 MHz feeds to be positioned 2. 63, 5.24, 7.88 and 10. 52

  9. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report (Polarization) Focus Declination Beam East on Sky (Feed West of Center) Beam North to West on Sky (Feed North to West on Sky) Feed moves down toward surface Beam South on Sky Position Read- out Sign 300-FOOT

  10. DOE Hosts Festival to Collect Items for Area Food Banks

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – Deputy Secretary of Energy Daniel Poneman and a representative of the Capital Area Food Bank are among the guest speakers at an event this Tuesday, July 31, to collect food items for the DOE Feeds Families drive.

  11. NewsBank InfoWeb Los Angeles Times

    E-Print Network [OSTI]

    Redmiles, David F.

    unspecified punitive damages. New York-based JetBlue has apologized for providing the data without customerNewsBank InfoWeb Los Angeles Times Los Angeles Times September 23, 2003 California JetBlue Is Sued Over Release of Data on Its Passengers to U.S.Contractor Author: David Rosenzweig; Times Staff Writer

  12. NewsBank InfoWeb Los Angeles Times

    E-Print Network [OSTI]

    Redmiles, David F.

    NewsBank InfoWeb Los Angeles Times Los Angeles Times September 20, 2003 THE NATION JetBlue Gives Away Data on Passengers Airline apologizes for sharing itineraries with a Pentagon contractor for use information to create a system that would make air travel safer. The New York-based airline apologized

  13. Bank Failure Prediction Using DEA to Measure Management Quality

    E-Print Network [OSTI]

    Barr, Richard

    an early­warning system cannot replace the on­site examination, which allows for personal interaction, an early­warning system's data must be timely and accurate . Fortunately, banks are al­ ready required of risk­taking, and long­range strategic planning. However, an effective warning system can com­ plement

  14. Bank Failure Prediction Using DEA to Measure Management Quality

    E-Print Network [OSTI]

    Barr, Richard

    surging, the need for more e ective prediction models has become evident. While an early-warning system the greatest bene ts, an early-warning system's data must be timely and accurate . Fortunately, banks are al-range strategic planning. However, an e ective warning system can com- plement the on-site examination process

  15. EM Rockets Past Target for Donations to Stock Food Banks

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM donated close to 50,000 pounds of non-perishable items to the Fourth Annual Feds Feed Families Campaign, easily surpassing its target of 19,120 pounds. All donations were delivered directly to food banks to provide goods to the needy.

  16. Banking on Solar: New Opportunities for Lending (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01T23:59:59.000Z

    The U.S. solar industry is a $13.7 billion market with roughly 450,000 systems in place. Bank and credit union lending for solar system deployment represents a valuable new opportunity for lenders to expand their consumer and commercial customer relationships, bring on new relationships and open a new asset class category.

  17. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report line. A 12 V stor- e battery may be attached to the battery connector with pin 1 ground and pin 2 +12 V DC nominal. When the primary power fails, the battery will supply power to the clock. About 1 1/2 amp

  18. NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA ELECTRONICS DIVISION TECHNICAL NOTE .:41; CLOCK INFORMATION FOR AST 286 COMPUTERS Ronald B. Weimer The battery backed clock is only read (which does not set the battery clock) the AST keeps time from a second crystal oscillator. A rough block

  19. NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia

    E-Print Network [OSTI]

    Groppi, Christopher

    NATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia Electronics Division Internal Report No. 109 BATTERY PACK FOR HEWLETT-PACKARD 5065A RUBIDIUM FREQUENCY STANDARD Michael Balister OCTOBER 1971 NUMBER OF COPIES: 150 #12;BATTERY PACK FOR HEWLETT-PACKARD 5065A RUBIDIUM FREQUENCY STANDARD

  20. Supply Chain Network Design of a Sustainable Blood Banking System

    E-Print Network [OSTI]

    Nagurney, Anna

    Supply Chain Network Design of a Sustainable Blood Banking System Anna Nagurney and Amir H. Masoumi a sustainable network design / redesign model for the complex supply chain of human blood, which is a valuable yet highly perish- able product. Specifically, we consider the optimal design (or redesign) of a blood

  1. DOE/ANL/HTRI heat exchanger tube vibration data bank

    SciTech Connect (OSTI)

    Halle, H.; Chenoweth, J.M.; Wambsganss, M.W.

    1981-01-01T23:59:59.000Z

    This addendum to the DOE/ANL/HTRI Heat Exchanger Tube Vibration Data Bank includes 16 new case histories of field experiences. The cases include several exchangers that did not experience vibration problems and several for which acoustic vibration was reported.

  2. Foreign Fishery Developments Inter-American Development Bank Lends To

    E-Print Network [OSTI]

    Foreign Fishery Developments Inter-American Development Bank Lends To EI Salvadore and Haiti in Haiti . The tech- nical cooperation, granted to the Re- public of Haiti, will be used by the Ministry to provide reliable information on the potential of Haiti's fish resources. If their existence and viab ility

  3. NATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA

    E-Print Network [OSTI]

    Groppi, Christopher

    not attempted to measure the electrical loss of the samples, nor have we tried plating the EDM'ed surfacesNATIONAL RADIO ASTRONOMY OBSERVATORY GREEN BANK, WEST VIRGINIA ELECTRONICS DIVISION TECHNICAL NOTE FOR SMALL WAVEGUIDE FABRICATION A. R. Kerr, J. W. Lamb, N. J. Bailey, M. Crawford, and N. Horner Electric

  4. Review and Assessment of Commercial Vendors/Options for Feeding and Pumping Biomass Slurries for Hydrothermal Liquefaction

    SciTech Connect (OSTI)

    Berglin, Eric J.; Enderlin, Carl W.; Schmidt, Andrew J.

    2012-11-01T23:59:59.000Z

    The National Advanced Biofuels Consortium is working to develop improved methods for producing high-value hydrocarbon fuels. The development of one such method, the hydrothermal liquefaction (HTL) process, is being led by the Pacific Northwest National Laboratory (PNNL). The HTL process uses a wet biomass slurry at elevated temperatures (i.e., 300 to 360°C [570 to 680°F]) and pressures above the vapor pressure of water (i.e., 15 to 20 MPa [2200 to 3000 psi] at these temperatures) to facilitate a condensed-phase reaction medium. The process has been successfully tested at bench-scale and development and testing at a larger scale is required to prove the viability of the process at production levels. Near-term development plans include a pilot-scale system on the order of 0.5 to 40 gpm, followed by a larger production-scale system on the order of 2000 dry metric tons per day (DMTPD). A significant challenge to the scale-up of the HTL process is feeding a highly viscous fibrous biomass wood/corn stover feedstock into a pump system that provides the required 3000 psi of pressure for downstream processing. In October 2011, PNNL began investigating commercial feed and pumping options that would meet these HTL process requirements. Initial efforts focused on generating a HTL feed and pump specification and then providing the specification to prospective vendors to determine the suitability of their pumps for the pilot-scale and production-scale plants. Six vendors were identified that could provide viable equipment to meet HTL feed and/or pump needs. Those six vendors provided options consisting three types of positive displacement pumps (i.e., diaphragm, piston, and lobe pumps). Vendors provided capabilities and equipment related to HTL application. This information was collected, assessed, and summarized and is provided as appendices to this report.

  5. The configuration and sediments of Stetson Bank, northwestern Gulf of Mexico

    E-Print Network [OSTI]

    Neumann, Andrew Conrad

    1958-01-01T23:59:59.000Z

    are generally fine- grained, silty sands with varying amounts of shell. Coarse, gravelly aggregates of shell and rock debris are found near the base of the bank. The name "Stetson Bank" was proposed by Francis P. Shepard in honor of the late marine geologist... THE SEDIIKNTARY ROCK OUTCROP OF STETSON BANK SEDIMENTARY PROPERTIES 61 MACROFAUNA 74 DISCUSSION 80 CONFIGURATION OF THE BANK 80 AGE AND ORIGIN OF THE OUTCROPPING ROCKS 83 TABIZ Ol CDllT ~ITS CON'T. Page No. THE SEDIIKNTARY ENVIRONIKNT SURROUNDING THE BANK...

  6. PNC Bank On-line BankCard Center -Use to access Penn State Purchasing Card statements on-line

    E-Print Network [OSTI]

    Demirel, Melik C.

    the ability to view company or account information and transactions within a current cycle period forget your password you can contact your designated company administrator or PNC Bank. After the Welcome Screen after you have logged in: 1) Transaction Activity 2) Current Activity Note the in the PNC

  7. ANALYSES OF HTF-48-12-20/24 (FEBRUARY, 2012) AND ARCHIVED HTF-E-05-021 TANK 48H SLURRY SAMPLES

    SciTech Connect (OSTI)

    Nash, C.; Peters, T.

    2012-08-02T23:59:59.000Z

    Personnel characterized a Savannah River National Laboratory (SRNL) archived sample of Tank 48H slurry (HTF-E-05-021) in addition to the composite of samples HTF-48-12-20 and HTF-48-12-24, which were both retrieved in February 2012. The combined February 2012 sample is referred to as HTF-48-12-20/24 in this report. The results from these analyses are compared with Tank 48H samples analyzed in 2003, 2004, and 2005. This work supports the effort to demonstrate copper-catalyzed peroxide oxidation (CCPO) of organic content in this material. The principal findings with respect to the chemical and physical characteristics of the most recent sample are: (1) The measured potassium tetraphenylborate (KTPB) solid concentration is 1.76 wt %; (2) Titanium was in line with 2004 and 2005 slurry measurements at 897 mg/L, it represents 0.1535 {+-} 0.0012 wt % monosodium titanate (MST); (3) The measured insoluble solids content was 1.467 wt %; (4) The free hydroxide concentration in the Tank 48H filtrate sample (1.02 {+-} 0.02 M) is close to the Tank 48H limit (1.0 M); (5) Carbonate reported by total inorganic carbon (TIC, 1.39 {+-} 0.03 M) is more than double the concentrations measured in past (2003-2005) samples; (6) The soluble potassium content (measured at 286 {+-} 23 mg/L) in the filtrate is in line with all past measurements; and (7) The measured {sup 137}Cs concentration is 7.81E + 08 {+-} 3.9E + 07 dpm/mL of slurry (1.33 {+-} 5% Ci/gallon or 3.18E + 05 {+-} 5% curies of {sup 137}Cs in the tank) in the slurry which is in agreement with the 2005 report of 3.14E + 05 {+-} 1.5% curies of {sup 137}Cs in the tank. The filtrate {sup 137}Cs concentration is 2.57E + 07 {+-} 2.6E + 05 dpm/mL. This result is consistent with previous results. Significant analytical data are summarized in Table 1.

  8. A kinetic study of methanol synthesis in a slurry reactor using a CuO/ZnO/Al2O3 catalyst

    E-Print Network [OSTI]

    Al-Adwani, Hamad Abdulwahab

    1992-01-01T23:59:59.000Z

    . This controversy is hindering the development and optimization of methanol synthesis industrial processes, (Lee et al. , 1989). Schack et al. (1989) studied methanol synthesis over a CuO/ZnO/AI203 catalyst supplied by BASF in a Betty reactor with a H2/CO/CO2... and a catalyst with particle size of 106 microns as slurry. The pressure was set at 6. 5 Mpa while the temperature was varied between 478 and 523 K. Two types of catalysts where used, the first catalyst investigated was a BASF CuO/Zn0/A1203 catalyst...

  9. The use of FBC wastes in the reclamation of coal slurry solids. Final technical report, September 1, 1991--December 31, 1992

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1992-12-31T23:59:59.000Z

    Because the hydrogen peroxide oxidation technique underestimated the amount of pyrite in the CSS-2 samples, the amount of FBC waste or sized Ag LS used in each mixture with CSS-2 were less than necessary to satisfy the stoichiometric amount of acid that could be generated by complete oxidation of the pyrite in the CSS samples. However, the leaching experiments demonstrated that FBC waste is as effective as Ag LS in neutralizing the generated acid, and that the leachate pH would be approximately the same as that from Ag LS/CSS mixtures. In fact, the calcium hydroxide from the original hydrated FBC waste was converted to calcium carbonate in a short period of time, as indicated by chemical and mineralogical data. If the laboratory leaching experiments had continued for a long enough term, the alkaline materials present either in the unleached CSS-2, or added to the FBC wastes would have been consumed before all the pyrite had been oxidized, because of the deficiency of FBC waste in the mixtures. There is some concern, because of the concentrations of sodium and chloride in the initial leachates, over the toxicity of the leachates to plants. Although both these solutes were flushed quickly from the laboratory and outdoor weathering solids, this might not be the case in a coal slurry pond. Therefore, salt-tolerant plants might have to be selected for revegetation of the amended coal slurry solids.

  10. Wetland mitigation banking for the oil and gas industry: Assessment, conclusions, and recommendations

    SciTech Connect (OSTI)

    Wilkey, P.L.; Sundell, R.C.; Bailey, K.A.; Hayes, D.C.

    1994-01-01T23:59:59.000Z

    Wetland mitigation banks are already in existence in the United States, and the number is increasing. To date, most of these banks have been created and operated for mitigation of impacts arising from highway or commercial development and have not been associated with the oil and gas industry. Argonne National Laboratory evaluated the positive and negative aspects of wetland mitigation banking for the oil and gas industry by examining banks already created for other uses by federal, state, and private entities. Specific issues addressed in this study include (1) the economic, ecological, and technical effectiveness of existing banks; (2) the changing nature of local, state, and federal jurisdiction; and (3) the unique regulatory and jurisdictional problems affecting bank developments associated with the oil and gas industry.

  11. Reef fish assemblages on hard banks in the northwestern Gulf of Mexico

    E-Print Network [OSTI]

    Dennis, George David

    1985-01-01T23:59:59.000Z

    , and Benny Gallaway of LGL Ecological Research Associates helped me collect specimens on oil plat- forms and at the Flower Garden banks. They also provided instructional help for a fledgling diving scientist and were the most able dive part- ners. My wife... assemblage or at a bank (Pielou, 1975). Additional records of reef fish taken from the hard banks and oil platforms by hook and line, ichthyocides, spear, and trawl are reported in the systematic species account. Sampling locations not reported...

  12. Data bank for short-length red oak lumber. Forest Service research paper (Final)

    SciTech Connect (OSTI)

    Wiedenbeck, J.K.; Gatchell, C.J.; Walker, E.S.

    1994-10-01T23:59:59.000Z

    The data bank for short-length lumber (less than 8 feet long) contains information on board outlines and defect size and quality for 426 4/4-inch-thick red oak boards. The Selects, 1 Common, 2A Common, and 3A Common grades are represented in the data bank. The data bank provides the kind of detailed lumber description that is required as input by computer programs that analyze rough mill yield.

  13. Rapid precipitation of magnesite micro-crystals from Mg(OH)2-H2O-CO2 slurry enhanced by NaOH and a heat-ageing step (from

    E-Print Network [OSTI]

    Boyer, Edmond

    sequential reactions: (1) aqueous carbonation of synthetic brucite (Mg(OH)2) by injection of CO2 in a highly system at ambient temperatures and at atmospheric CO2 partial pressure is of both geological interest1 Rapid precipitation of magnesite micro-crystals from Mg(OH)2- H2O-CO2 slurry enhanced by Na

  14. Radiological Worker (RW) and Radiological Control Technician (RCT) Training Exam Banks

    Broader source: Energy.gov [DOE]

    Examination banks are available to DOE Contractors for use with the radiation safety training Handbooks. Questions and answers for these courses have also been prepared by DOE.

  15. World Bank-MENA Regional-NAMAs and Corresponding Climate Finance...

    Open Energy Info (EERE)

    MENA Regional-NAMAs and Corresponding Climate Finance Instruments Jump to: navigation, search Name World Bank-MENA Regional-NAMAs and Corresponding Climate Finance Instruments...

  16. Case Study: Fuel Cells Increase Reliability at First National Bank of Omaha

    Fuel Cell Technologies Publication and Product Library (EERE)

    A case study of the First National Bank of Omaha fuel cell system, covering 1999 through October 2009. The system reduced heating bills by more than $1 million.

  17. Towards Designing a Biometric Measure for Enhancing ATM Security in Nigeria E-Banking System

    E-Print Network [OSTI]

    Ibidapo,; Omogbadegun, Zaccheous O; Oyelami, Olufemi M

    2011-01-01T23:59:59.000Z

    Security measures at banks can play a critical, contributory role in preventing attacks on customers. These measures are of paramount importance when considering vulnerabilities and causation in civil litigation. Banks must meet certain standards in order to ensure a safe and secure banking environment for their customers. This paper focuses on vulnerabilities and the increasing wave of criminal activities occurring at Automated Teller Machines (ATMs) where quick cash is the prime target for criminals rather than at banks themselves. A biometric measure as a means of enhancing the security has emerged from the discourse. Keywords-Security, ATM, Biometric, Crime.

  18. The Political Economy of Financial Reform in Japan: The Banking Act of 1982

    E-Print Network [OSTI]

    Rosenbluth, Frances

    1989-01-01T23:59:59.000Z

    Kigyo Kinyii Seido no Seibi Kaizen no tame no $6g6 Gink6h6,eliminate bad bank management (kaizen kankoku)." °4 On May

  19. Soil suitability index identifies potential areas for groundwater banking on agricultural lands

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    2015. California’s Groundwater Update 2013. A Compilation ofpotential areas for groundwater banking on agriculturaland Mike Walkinshaw Groundwater pumping chronically exceeds

  20. SLURRY MIX EVAPORATOR BATCH ACCEPTABILITY AND TEST CASES OF THE PRODUCT COMPOSITION CONTROL SYSTEM WITH THORIUM AS A REPORTABLE ELEMENT

    SciTech Connect (OSTI)

    Edwards, T.

    2010-10-07T23:59:59.000Z

    The Defense Waste Processing Facility (DWPF), which is operated by Savannah River Remediation, LLC (SRR), has recently begun processing Sludge Batch 6 (SB6) by combining it with Frit 418 at a nominal waste loading (WL) of 36%. A unique feature of the SB6/Frit 418 glass system, as compared to the previous glass systems processed in DWPF, is that thorium will be a reportable element (i.e., concentrations of elemental thorium in the final glass product greater than 0.5 weight percent (wt%)) for the resulting wasteform. Several activities were initiated based upon this unique aspect of SB6. One of these was an investigation into the impact of thorium on the models utilized in DWPF's Product Composition and Control System (PCCS). While the PCCS is described in more detail below, for now note that it is utilized by Waste Solidification Engineering (WSE) to evaluate the acceptability of each batch of material in the Slurry Mix Evaporator (SME) before this material is passed on to the melter. The evaluation employs models that predict properties associated with processability and product quality from the composition of vitrified samples of the SME material. The investigation of the impact of thorium on these models was conducted by Peeler and Edwards [1] and led to a recommendation that DWPF can process the SB6/Frit 418 glass system with ThO{sub 2} concentrations up to 1.8 wt% in glass. Questions also arose regarding the handling of thorium in the SME batch acceptability process as documented by Brown, Postles, and Edwards [2]. Specifically, that document is the technical bases of PCCS, and while Peeler and Edwards confirmed the reliability of the models, there is a need to confirm that the current implementation of DWPF's PCCS appropriately handles thorium as a reportable element. Realization of this need led to a Technical Task Request (TTR) prepared by Bricker [3] that identified some specific SME-related activities that the Savannah River National Laboratory (SRNL) was requested to conduct. SRNL issued a Task Technical and Quality Assurance (TT&QA) plan [4] in response to the SRR request. The conclusions provided in this report are that no changes need to be made to the SME acceptability process (i.e., no modifications to WSRC-TR-95-00364, Revision 5, are needed) and no changes need to be made to the Product Composition Control System (PCCS) itself (i.e. the spreadsheet utilized by Waste Solidification Engineering (WSE) for acceptability decisions does not require modification) in response to thorium becoming a reportable element for DWPF operations. In addition, the inputs and results for the two test cases requested by WSE for use in confirming the successful activation of thorium as a reportable element for DWPF operations during the processing of SB6 are presented in this report.

  1. Banks Lake Fishery Evaluation Annual Report 2002-2003.

    SciTech Connect (OSTI)

    Polacek, Matt; Knuttgen, Kamia; Shipley, Rochelle

    2003-11-01T23:59:59.000Z

    The Washington Department of Fish and Wildlife implemented the Banks Lake Fishery Evaluation Project (BLFEP) in September 2001 with funds from the Bonneville Power Administration. Fiscal Year (FY) 2001 of the BLFEP was used to gather historic information, establish methods and protocols, collect limnology data, and conduct the first seasonal fish surveys. FY 2002 was used to continue seasonal fish and lakewide creel surveys and adjust methods and protocols as needed. Water quality parameters were collected monthly from February to May and bi-monthly from June to August. Banks Lake water temperatures began to increase in April and stratification was apparent by June at all 3 limnology collection sites. By late August, the thermocline had dropped to nearly 20 meters deep, with 16-17 C temperatures throughout the epilimnion. Dissolved oxygen levels were generally above 10 mg/L until August when dissolved oxygen dropped near or below 5 mg/L below 20-meters deep. Secchi depths ranged from 2.5-8 meters and varied by location and date. Nearshore and offshore fish surveys were conducted in October 2002 and May and July 2003 using boat electrofishing, fyke net, gill net, and hydroacoustic surveys. Yellow Perch Perca flavescens (32 %) and cottid spp. (22 %) dominated the nearshore species composition in October; however, by May yellow perch (12 %) were the third most common species followed by smallmouth bass Micropterous dolomieui (34 %) and lake whitefish Coregonus clupeaformis (14 %). Lake whitefish dominated the offshore catch during October (78 %) and May (81 %). Fish diet analysis indicated that juvenile fishes consumed primarily insects and zooplankton, while adult piscivores consumed cottids spp. and yellow perch most frequently. For FY 2002, the following creel statistics are comprehensive through August 31, 2003. The highest angling pressure occurred in June 2003, when anglers were primarily targeting walleye and smallmouth bass. Boat anglers utilized Steamboat State Park more frequently than any other boat ramp on Banks Lake. Shore anglers used the rock jetty at Coulee City Park 76 % of the time, with highest use occurring from November through April. An estimated total of 11,915 ({+-}140 SD) smallmouth bass, 6,412 ({+-}59 SD) walleye, 5,470 ({+-}260 SD) rainbow trout, and 1,949 ({+-}118 SD) yellow perch were harvested from Banks Lake in FY 2002. Only 3 kokanee were reported in the catch during the FY 2002 creel survey. In the future, data from the seasonal surveys and creel will be used to identify potential factors that may limit the production and harvest of kokanee, rainbow trout, and various spiny-rayed fishes in Banks Lake. The limiting factors that will be examined consist of: abiotic factors including water temperature, dissolved oxygen levels, habitat, exploitation and entrainment; and biotic factors including food limitation and predation. The BLFEP will also evaluate the success of several rearing and stocking strategies for hatchery kokanee in Banks Lake.

  2. Echinodermata of the West Flower Garden Reef Bank

    E-Print Network [OSTI]

    Burke, Thomas Edward

    1974-01-01T23:59:59.000Z

    muricatum. 41 10. ~dt 1*t. 'lp-6 1 1 . Btt 1 view. 46 11. A h ~t' ' "I 11, Oph' dtt. tp- 6 1 ' . Btt ? 1 49 view. 53 13. ~oht t' lt. 'tp- 1 1 . Btt aboral view. 57 Page 14. 0phtdPP*1P-B& t htt 1 view. 15. ~htd bi d . 'fp ? b*l 1 . 8tt oral view... aboral view. 121 28. Tp-Ci e*~btto . 3tt ? Ct t d kinziei. 126 29. Schematic diagram of West Flower Garden Bank, indi. cating prominent surface features in both geologic and biotic terms. 132 CHAPTER I INTRODUCTION The phylum Echinodermata has...

  3. Resistance and spontaneous potential measurements over Heald Bank, Texas 

    E-Print Network [OSTI]

    Ferebee, Thomas Wilson

    1974-01-01T23:59:59.000Z

    OF SCIENCE December 1974 Major Subject: Oceanography RESISTANCE AND SPONTANEOUS POTENTIAL MEASUREMENTS OVER HEALD BANK, TEXAS A Thesis by THOMAS WILSON FEREBEE, JR. Approved as to sty1e and content by: au. ~~ C ai rman o f C ommi ttee Head o Depar... and Bouma (1970), Bouma and others (1971), and Sweet (1972). Bouma and others (1971) and Huebner and others (1973) combined electric logging with a towed electrical array to measure the resistivity and spontaneous potential of marine sediments. The f...

  4. Loan/deposit links at rural Texas banks

    E-Print Network [OSTI]

    Podolecki, Vera Burton

    1977-01-01T23:59:59.000Z

    : Agricultural Economics LOAN/DEPOSIT LINKS AT RURAL TEXAS RANKS A Thesis by VERA SURTON PODOLECKI Approved as to style and content by: fCha' an of Comm' ee) . '/ (Head' of Dep rtment) (Member ) (Membe May 1977 441'726 ABSTRACT Loan/Deposit Links... in agri- cultural lending on deposit level which in turn influences bank pro- fitability. This paper is directed towards providing the rural banker with tangible evidence of the effect of lending on deposit levels over time, and providing a...

  5. Ukraine-World Bank Climate Projects | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global Energy LLC Place: Dallas,UGIURDBCOSOdatabase[1] World Bank

  6. Indonesia-World Bank Climate Projects | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEIHesperia,IDGWPIndiantown, Florida: EnergyStudy JumpEnergyBank

  7. Red Bank, New Jersey: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f < RAPID‎ | Roadmap Jump to:bJumpRed Bank, New Jersey: Energy

  8. Banks County, Georgia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc JumpIM 2011-003Vermont: EnergyclockBank of Italy

  9. Physical properties of SRC-I slurries under preheater conditions. Final report. [300 to 728/sup 0/K; 150, 1000, and 2500 psig

    SciTech Connect (OSTI)

    Lee, D.D.; Gibson, M.R.

    1983-09-01T23:59:59.000Z

    In support of the SRC-I Demonstration Plant Project, rheological and density measurements have been made on recycle solvent made from Kentucky No. 9 coal and on slurries of recycle solvent and Kentucky No. 9 coal at a 1.6 solvent/coal ratio. The measurements were taken at temperatures of 300 to 728/sup 0/K (80 to 850/sup 0/F) and pressures of atmospheric, 1.14 MPa (150 psig), 7.00 MPa (1000 psig), and 17.34 MPa (2500 psig). These calculations are required for preheater and feed pump design of coal demonstration plants and, in particular, by the International Coal Refining Company (ICRC) for the SRC-I demonstration plant design effort. The determinations were made in the Oak Ridge National Laboratory Coal Liquids Flow System (CLFS).

  10. Slurry phase Fischer-Tropsch synthesis: Cobalt plus a water-gas shift catalyst. [Quarterly] report, June 30, 1988--September 30, 1988

    SciTech Connect (OSTI)

    Yates, I.C.; Satterfield, C.N.

    1988-12-31T23:59:59.000Z

    This report details experiments performed on three different copper-based catalysts: Cu/Cr{sub 2}O{sub 3}, Cu/MnO/Cr{sub 2}O{sub 3} and Cu/ZnO/Al{sub 2}O{sub 3}. Of these three catalysts, the Cu/ZnO/Al{sub 2}O{sub 3} exhibits the greatest stability when slurried in octacosane. More than 1000 hours-on-stream indicate that the catalyst activity is not detrimentally affected by high pressure, high H{sub 2}/CO ratio, or the presence of alkenes. All of these are necessary stability characteristics for the water-gas shift catalyst, if it is to be used in combination with a cobalt Fischer-Tropsch catalyst. A review of documented reduction procedures for cobalt-based Fischer-Tropsch catalysts is presented.

  11. Development of a use for Illinois coal concentrates for slurry fed gasifiers. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect (OSTI)

    Khan, L.A.; Lytle, J.M.; Khan, S.; At-Taras, M. [Illinois State Geological Survey, Champaign, IL (United States); Ehrlinger, H.P. III [Consultant (United States)

    1994-06-01T23:59:59.000Z

    The purpose of this project is to test concentrates made from preparation plant fines as to their amenability as feed for slurry fed, slagging, entrained-flow gasifiers. During the current reporting period, waste slurry samples were obtained from the washing plants associated with surface mining, underground mining from which the fines are not treated, underground mining from which a flotation concentrate is made from the washer plant waste fines, and from a tailing pile associated with one of the washing plants which had been deposited for over five years. Column flotation testing was conducted on representative samples of several of these. Using a typical flotation reagent requirement of kerosene and MIBC several tests showed outstanding results when the feed rate was kept at the nominal rate of 10 pounds per hour as suggested by the Deister Concentrator Company. The most encouraging test was conducted on waste fines from the surface plant. While the ash content in the clean coal concentrate was higher than expected, the calorific content in the tailing was 422 BTU/pound, which was at least twice as low as any tailings produced either in the laboratory or in plants during the last ten years of coal flotation research. In this same test 96.9% of the BTU`s were concentrated in the flotation product and 80.3% of the ash reported in the flotation tailing. Flotation results of the material which had been impounded for an extended period were encouraging as 67.7% of the BTU`s were concentrated in a product which contained 12,762 BTU/pound.

  12. Running an enlarged euro-zone – reforming the European Central Bank: Efficiency, legitimacy and national economic interest 

    E-Print Network [OSTI]

    Howarth, D.

    This article analyses the December 2002 reform of decision making in the European Central Bank’s (ECB) Governing Council in terms of national economy size reflected in the bargaining power of the ECB Governing Council ...

  13. Flow-topography interactions, particle transport and plankton dynamics at the Flower Garden Banks: a modeling study

    E-Print Network [OSTI]

    Francis, Simone

    2006-04-12T23:59:59.000Z

    influenced flow at the Flower Garden Banks, two small but thriving coral reef ecosystems in the northwest Gulf of Mexico. Flow past the modeled banks is characterized by vortex shedding, turbulent wake formation and strong return velocities in the near...

  14. The World Bank's Approach and the Right Approach to Pension Reform

    E-Print Network [OSTI]

    Spence, Harlan Ernest

    1 The World Bank's Approach and the Right Approach to Pension Reform by Laurence J. Kotlikoff's approach to pension reform. The reason is that exclusive or predominant investment in domestic asset and actual variety, the Bank's pension reforms reflect and emanate from a common and deeply flawed set

  15. Active Bank Switching for Temperature Control of the Register File in a Microprocessor

    E-Print Network [OSTI]

    Pedram, Massoud

    Active Bank Switching for Temperature Control of the Register File in a Microprocessor Kimish Patel, called active bank switching, for temperature control in the register file of a microprocessor to microprocessor performance and a significant component of its cost. Expensive packaging and heat removal

  16. Results of Instrument Observations and Adaptive Prediction of Thermoabrasion of Banks of the Vilyui Reservoir

    SciTech Connect (OSTI)

    Velikin, S. A. [Vilyuisk Permafrost Scientific-Research Station, Institute of Permafrost Science, Siberian Division of the Russian Academy of Sciences (Russian Federation)] [Vilyuisk Permafrost Scientific-Research Station, Institute of Permafrost Science, Siberian Division of the Russian Academy of Sciences (Russian Federation); Sobol', I. S.; Sobol', S. V.; Khokhlov, D. N. [Nizhnii Novgorod State Architectural and Civil-Engineering University (Russian Federation)] [Nizhnii Novgorod State Architectural and Civil-Engineering University (Russian Federation)

    2013-11-15T23:59:59.000Z

    Quantitative data derived from observations of reformation of the thermoabrasive banks of the Viliyui Reservoir in Yakutia during the service period from 1972 through 2011, and results of analytical prediction of bank formations over the next 20 years for purposes of monitoring the ecological safety of this water body are presented.

  17. Case Study of Online Banking in India: User Behaviors and Design Guidelines

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    checking account status, fund transfer, ordering demand drafts, loan applications, credit card introduced it. SBI launched internet banking in 2001 and experienced good response. In general, internet-control transactions have greater potential for customer satisfaction and retention. Online banking has thus come

  18. INVASION NOTE Crassostrea gigas in natural oyster banks in southern Brazil

    E-Print Network [OSTI]

    Solé-Cava, Antonio M.

    INVASION NOTE Crassostrea gigas in natural oyster banks in southern Brazil Cla´udio M. R. Melo Æ.V. 2009 Abstract We report on the invasion of Brazil by the Pacific oyster Crassostrea gigas, and discuss was found amongst the native species in oyster banks up to 100 km south of oyster farms in South Brazil

  19. Turf-banked terrace treads and risers, turf exfoliation and possible relationships with advancing treeline

    E-Print Network [OSTI]

    Resler, Lynn M.

    Turf-banked terrace treads and risers, turf exfoliation and possible relationships with advancing of conifer invasion of alpine tundra. Turf-banked terraces and turf exfoliation associated with solifluction depend on turf exfoliation. Exfoliated turf risers are significantly more penetrable than non-exfoliated

  20. Personnel Department 8-12-2010 TU/e -Salary savings scheme 2011 (ASN Bank)

    E-Print Network [OSTI]

    Franssen, Michael

    12 Personnel Department 8-12-2010 TU/e - Salary savings scheme 2011 (ASN Bank) Alteration from his/her salary relating to the salary savings scheme. Personal details Family name Initials male Telephone numbers TU/e Home Do you already have an employee savings account with the ASN Bank? yes

  1. The Efficiency of Liquidity Management in Islamic Banks (Conservative vs. Profit)

    E-Print Network [OSTI]

    The Efficiency of Liquidity Management in Islamic Banks (Conservative vs. Profit) Professor Abdul-Iraq) ABSTRACT The aim of this paper is to explaim and examines the liquidity efficiency in Islamic Banks to measure liquidity efficiency, where measurement of liquidity management efficiency helps in the planning

  2. Electronic copy available at: http://ssrn.com/abstract=2065816 Ultimate Ownership Structure and Bank Regulatory Capital Adjustment

    E-Print Network [OSTI]

    Boyer, Edmond

    their capital structure (debt/equity), firms in general and banks more specifically take control dilution costs into consideration, beyond the asymmetric information and transaction costs considered in prior research on capital and Bank Regulatory Capital Adjustment: Evidence from European Commercial Banks Laetitia Lepetita , Amine

  3. Banking on Solar: Debt Finance in Today's Distributed Market (Poster)

    SciTech Connect (OSTI)

    Louder, T.

    2014-10-01T23:59:59.000Z

    Over the last two years, several entities - from banks to credit unions to solar finance companies -have rolled out distributed solar-specific loan programs in the United States. These solar-specific loans are a distinct loan in that the underwriting, loan terms, lender security interest, and other programmatic aspects are designed exclusively for the financing of solar installations. Until recently, loan financing for distributed solar installations was largely through home equity loans, commercial loans, and other standardized loan products available to homeowners and businesses for general expenditures. However, as the U.S. solar market matures, so too are its financing options, and solar-specific loans stand to gain market share. This poster was presented at the Solar Power International conference in Las Vegas, NV in October 2014.

  4. A data bank of Antarctic surface temperature and pressure data

    SciTech Connect (OSTI)

    Jones, P.D.; Limbert, D.W.S.

    1987-06-01T23:59:59.000Z

    A data bank of monthly-mean surface air temperature and sea-level or station-level pressures is presented for 29 stations over the Antarctic region south of 60/sup 0/S. Considerable attempts have been made to locate missing data in nationally published sources and in World Weather Records. By cross-checking neighboring station data, suspect values have been either verified or corrected. At four sites in the Antarctic Peninsula region, composite records were produced by amalgamating records from a number of short and longer length records at or near the key sites. The four sites were Bellingshausen, Faraday, Esperenza and Rothera. The mean Antarctic temperature series produced by Raper et al. (1984) is updated using the same method of calculation.

  5. Human-reliability data bank for nuclear-power-plant operations. Volume 2. A data-bank concept and system description

    SciTech Connect (OSTI)

    Comer, M.K.; Kozinsky, E.J.; Eckel, J.S.; Miller, D.P.

    1983-02-01T23:59:59.000Z

    The US Nuclear Regulatory Commission (NRC) is conducting a research program to determine the need for a human-reliability data bank unique to the nuclear industry. This report, in describing a proposed data bank, focuses primarily on four requirements: human-performance data collection, treatment, structuring (storage), and retrieval. Four data-collection methods are proposed: three are extensions to existing systems (i.e., Licensee Event Reports (LER), Nuclear Plant Reliability Data System (NPRDS), and Plant Incident Reports (PIR)); the fourth is a new system called the Nuclear Safety Reporting System (NSRS). Data treatment involves evaluating raw field data and data from other sources (e.g., training simulator, expert judgment, and performance modeling), and preparing them for entry into the data bank. Data structuring involves storage of data by equipment characteristics and human actions at the system, component, and individual control/display levels. Data retrieval uses a set of matrices based on the data-structuring taxonomy.

  6. Superclean coal-water slurry combustion testing in an oil-fired boiler. Semiannual technical progress report, August 15, 1992--February 15, 1993

    SciTech Connect (OSTI)

    Miller, B.G.; Pisupati, S.V.; Poe, R.L.; Morrison, J.L.; Xie, J.; Walsh, P.M.; Wincek, R.T.; Clark, D.A.; Scaroni, A.W.

    1993-04-21T23:59:59.000Z

    The Pennsylvania State University is conducting a superclean coal-water slurry (SCCWS) program for the United States Department of Energy (DOE) and the Commonwealth of Pennsylvania with the objective of determining the capability of effectively firing SCCWS in an industrial boiler designed for heavy fuel oil. Penn State has entered into a cooperative agreement with DOE to determine if SCCWS (a fuel containing coal with 3.0 wt.% ash and 0.9 wt.% sulfur) can effectively be burned in a heavy fuel oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. The project will provide information on the design of new systems specifically configured to fire these clean coal-based fuels. The project consists of four phases: (1) design, permitting, and test planning, (2) construction and start up, (3) demonstration and evaluation (1,000-hour demonstration), and (4) program expansion (additional 1,000 hours of testing). The boiler testing wig determine if the SCCWS combustion characteristics, heat release rate, fouling and slagging behavior, corrosion and erosion limits, and fuel transport, storage, and handling characteristics can be accommodated in an oil-designed boiler system. In addition, the proof-of-concept demonstration will generate data to determine how the properties of SCCWS and its parent coal affect boiler performance. Economic factors associated with retrofitting boilers will be identified

  7. Superclean coal-water slurry combustion testing in an oil-fired boiler. Semiannual technical progress report, February 15, 1992--August 15, 1992

    SciTech Connect (OSTI)

    Miller, B.G.; Pisupati, S.V.; Poe, R.L.; Morrison, J.L.; Xie, J.; Walsh, P.M.; Shamanna, S.; Schobert, H.H.; Scaroni, A.W.

    1992-10-13T23:59:59.000Z

    The Pennsylvania State University is conducting a superclean coal-water slurry (SCCWS) program for the United States Department of Energy (DOE) and the Commonwealth of Pennsylvania with the objective of determining the capability of effectively firing SCCWS in an industrial boiler designed for oil. Penn State has entered into a cooperative agreement with DOE to determine if SCCWS (a fuel containing coal with 3.0 wt.% ash and 0.9 wt.% sulfur) can effectively be burned in an oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. The project will provide information on the design of new systems specifically configured to fire these clean coal-based fuels. The project consists of four phases: (1) design, permitting, and test planning, (2) construction and start up, (3) demonstration and evaluation (1,000-hour demonstration), and (4) program expansion (additional 1,000 hours of testing). The boiler testing will determine if the SCCWS combustion characteristics, heat release rate, fouling and slagging behavior, corrosion and erosion limits, and fuel transport, storage, and handling characteristics can be accommodated in an oil-designed boiler system. In addition, the proof-of-concept demonstration will generate data to determine how the properties of SCCWS and its parent coal affect boiler performance. Economic factors associated with retrofitting and operating boilers will be identified to assess the viability of future oil-to-coal retrofits.

  8. Scaling Laws for Reduced-Scale Tests of Pulse Jet Mixing Systems in Non-Newtonian Slurries: Gas Retention and Release Behavior

    SciTech Connect (OSTI)

    Stewart, Charles W.; Meyer, Perry A.; Kurath, Dean E.; Barnes, Steven M.

    2006-03-02T23:59:59.000Z

    The Waste Treatment Plant (WTP) under construction at the Hanford Site will use pulse jet mixer (PJM) technology for mixing and gas retention control applications in tanks expected to contain waste slurries exhibiting a non-Newtonian rheology. This paper presents the results of theoretical and experimental studies performed to establish the methodology to perform reduced-scale gas retention and release tests with PJM systems in non-Newtonian fluids with gas generation. The technical basis for scaled testing with unsteady jet mixing systems in gas-generating non-Newtonian fluids is presented in the form of a bubble migration model that accounts for the gas generation rate, the average bubble rise velocity, and the geometry of the vessel. Scaling laws developed from the model were validated with gas holdup and release tests conducted at three scales: large scale, 1/4 scale, and 1/9 scale. Experiments were conducted with two non-Newtonian simulants with in-situ gas generation by decomposition of hydrogen peroxide. The data were compared non-dimensionally, and the important scale laws were examined. From these results, scaling laws are developed which allow the design of mixing systems at a reduced scale.

  9. The efficiency and robustness of allowance banking in the U.S. Acid Rain Program

    E-Print Network [OSTI]

    Ellerman, A. Denny

    2005-01-01T23:59:59.000Z

    This paper provides an empirical evaluation of the efficiency of allowance banking (i.e., abating more in early periods in order to abate less in later periods) in the nationwide market for sulfur dioxide (SO2) emission ...

  10. 235U Holdup Measurements in the 321-M Cooling Hut HEPA Bank

    SciTech Connect (OSTI)

    Dewberry, R.A.

    2002-03-22T23:59:59.000Z

    This report covers holdup measurements of uranium residue in the cooling hut HEPA bank of the 321-M facility. This report discusses the methodology, non-destructive assay measurements, assumptions, and results of the uranium holdup in this item.

  11. Analysis of condensate banking dynamics in a gas condensate reservoir under different injection schemes

    E-Print Network [OSTI]

    Sandoval Rodriguez, Angelica Patricia

    2002-01-01T23:59:59.000Z

    condensate reservoir under natural depletion, and injection of methane, injection of carbon dioxide, produced gas recycling and water injection. To monitor the condensate banking dynamics near the wellbore area, such as oil saturation and compositional...

  12. Executive Compensation and Business Policy Choices at U.S. Commercial Banks

    E-Print Network [OSTI]

    DeYoung, Robert; Peng, Emma Y.; Yan, Meng

    2010-01-01T23:59:59.000Z

    This study examines whether and how the terms of CEO compensation contracts at large commercial banks between 1994 and 2006 influenced, or were influenced by, the risky business policy decisions made by these firms. We ...

  13. The European carbon market (2005-2007): banking, pricing and risk-hedging strategies

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Keywords: Climate Change Policy; Emissions Trading; EU ETS; European carbon market; Banking Borrowing2010 #12;2 1 Introduction The European Union Emissions Trading Scheme (EU ETS) has been created

  14. EM Employees at West Valley Help Beat Goal for Food Banks

    Broader source: Energy.gov [DOE]

    WEST VALLEY, N.Y. – EM employees and their contractor counterparts at the West Valley Demonstration Project (WVDP) have supported their local food banks for several years, and this year was no exception.

  15. Photographic monitoring of benthic biota at Stetson Bank, Gulf of Mexico 

    E-Print Network [OSTI]

    Bernhardt, Sarah Praeger

    2000-01-01T23:59:59.000Z

    at the 2 m² level. Overall the photostations were dominated by Millepora alcicornis (30 %), various poriferans (30 %), and exposed substrate (30 %). No overall temporal changes occurred at Stetson Bank during the period of the study. Two color segmentation...

  16. Microsoft Word - CX-Bell-BoundaryNo3BankStabilizationFY13_WEB...

    Broader source: Energy.gov (indexed) [DOE]

    3 REPLY TO ATTN OF: KEPR-Bell-1 SUBJECT: Environmental Clearance Memorandum Tom McClatchie Project Manager - TF-Bell-1 Proposed Action: Install rip rap along the stream bank at two...

  17. World Bank-Low-carbon Energy Projects for Development in Sub...

    Open Energy Info (EERE)

    Development in Sub-Saharan Africa Jump to: navigation, search Name Low-carbon Energy Projects for Development in Sub-Saharan Africa AgencyCompany Organization World Bank Sector...

  18. World Bank-Morocco Study on the Impact of Climate Change on the...

    Open Energy Info (EERE)

    Morocco Study on the Impact of Climate Change on the Agricultural Sector Jump to: navigation, search Name World Bank-Morocco Study on the Impact of Climate Change on the...

  19. Late Holocene isotopic and sedimentologic records contained in carbonate lagoonal cores, northern Little Bahama Bank

    E-Print Network [OSTI]

    Canova, Judy Lynn

    1988-01-01T23:59:59.000Z

    LATE HOLOCENE ISOTOPIC AND SEDIMENTOLOGIC RECORDS CONTAINED IN CARBONATE LAGOONAL CORES, NORTHERN UTTLE BAHAMA BANK A Thesis by JUDY LYNN CANOVA Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1988 Major Subject: Geology LATE HOLOCENE ISOTOPIC AND SEDIMENTOLOGIC RECORDS CONTAINED IN CARBONATE LAGOONAL CORES, NORTHERN LITTLE BAHAMA BANK A Thesis by Judy Lynn Canova Approved as to style...

  20. Analysis of consumer lending problems of the banks in the central Texas Brazos Valley area

    E-Print Network [OSTI]

    Old, William Donald

    1963-01-01T23:59:59.000Z

    to significant new profits for RVA bankers. A oonsuner loan of $1, 000 at seven poroont interest, repaid in twelve nonthly inetallnonto, aotuallr earns interest of 12. 9 yeroont for the lender. Therefore& surplus lendable funds now held hF BVA 1 banks... eonsuaor loanso %hat nininun siss (dollar anount) oonsunor loan Sraaos Vallqf Area bankers oonsider to bo profitable. $. Tho nethods and prooeduros used hf Breaos Valley Area bankers in asking oonsunor loansi 6. Vhat steps Sraaos Valley Area banks oan...

  1. A theoretical analysis of a pattern recognition algorithm for bank failure prediction

    E-Print Network [OSTI]

    Prieto Orlando, Rodrigo Javier

    1994-01-01T23:59:59.000Z

    A THEORETICAL ANALYSIS OF A PATTERN RECOGNITION ALGORITHM FOR BANK FAILURE PREDICTION A Thesis by RODRIGO JAVIER PRIETO ORLANDO Submitted to Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... Analysis of a Pattern Recognition Algorithm for Bank Failure Prediction. (December 1994) Rodrigo Javier Prieto Orlando, B. S. , Texas AkM University Chair of Advisory Committee: Dr. Tep Sastri This thesis describes a theoretical analysis and a series...

  2. Agricultural financing in Texas: problems associated with statutory lending limits of commercial banks.

    E-Print Network [OSTI]

    Paulson, Seth Lewis

    1975-01-01T23:59:59.000Z

    increase than their chief competitor (Benjamin, Sept 1973). Total farm debt outstanding reached nearly $80 billion on January 1, 1974 with nonreal estate debt accounting for 5Z. 14 percent of t. he total, or $41. 4 billion. Although final reports... to use correspondent relations may be a fear of losing the customer and all subsequent loan requests to the larger correspondent bank. A recent report states even though small Texas banks with deposits less than $8 million have the lowest average...

  3. Bio-sedimentary facies on the East Flower Garden Bank, northwest Gulf of Mexico

    E-Print Network [OSTI]

    Wang, Wei

    1981-01-01T23:59:59.000Z

    . Objectives The primary objective of this study is to describe the character and distribution of the surface sediments on and surrounding the East Plower Garden Bank in order to establish the geological setting in this arear' These shelf-edge banks... represent a unique marine environment, and their recognition in the geologic column is of major importance in paleoenvi- ronmental interpretations and exploration for hydrocarbons, This project was funded by the Bureau of Land Management as part of a...

  4. Surface sediment analysis of five carbonate banks on the Texas continental shelf

    E-Print Network [OSTI]

    Cunningham, Susanne E

    1977-01-01T23:59:59.000Z

    SURFACE SEDIMENT ANALYSIS OF FIVE CARBONATE BANKS ON THE TEXAS CONTINENTAL SHELF A Thesis by Susanne E. Cunningham Submitted to the Graduate College of Texas AcM University In partial fulfillment of the requirement for the degree of MASTER... Member Member December 1977 ABSTRACT SURFACE SEDIMENT ANALYSIS OF FIVE CARBONATE BANKS ON THE TEXAS CONTINENTAL SHELF (December 1977) Susanne E. Cunningham, B, S. , Indiana University Chairman of Advisory Committee: Dr. William Bryant The five...

  5. A template bank to search for gravitational waves from inspiralling compact binaries: II. Phenomenological model

    E-Print Network [OSTI]

    Thomas Cokelaer

    2007-09-07T23:59:59.000Z

    Matched filtering is used to search for gravitational waves emitted by inspiralling compact binaries in data from ground-based interferometers. One of the key aspects of the detection process is the deployment of a set of templates, also called a template bank, to cover the astrophysically interesting region of the parameter space. In a companion paper, we described the template-bank algorithm used in the analysis of LIGO data to search for signals from non-spinning binaries made of neutron star and/or stellar-mass black holes; this template bank is based upon physical template families. In this paper, we describe the phenomenological template bank that was used to search for gravitational waves from non-spinning black hole binaries (from stellar mass formation) in the second, third and fourth LIGO science runs. We briefly explain the design of the bank, whose templates are based on a phenomenological detection template family. We show that this template bank gives matches greater than 95% with the physical template families that are expected to be captured by the phenomenological templates.

  6. SIMULATIONS OF THE AGS MMPS STORING ENERGY IN CAPACITOR BANKS

    SciTech Connect (OSTI)

    MARNERIS,I.; BADEA, V.S.; BONATI, R.; ROSER, T.; SANDBERG, J.

    2007-06-25T23:59:59.000Z

    The Brookhaven AGS Main Magnet Power Supply (MMPS) is a thyristor control supply rated at 5500 Amps, +/-9000 Volts. The peak magnet power is 50 MWatts. The power supply is fed from a motor/generator manufactured by Siemens. The generator is 3 phase 7500 Volts rated at 50 MVA. The peak power requirements come from the stored energy in the rotor of the motor/generator. The motor generator is about 45 years old, made by Siemens and it is not clear if companies will be manufacturing similar machines in the future. We are therefore investigating different ways of storing energy for future AGS MMPS operations. This paper will present simulations of a power supply where energy is stored in capacitor banks. Two dc to dc converters will be presented along with the control system of the power section. The switching elements will be IGCT's made by ABB. The simulation program used is called PSIM version 6.1. The average power from the local power authority into the power supply will be kept constant during the pulsing of the magnets at +/-50 MW. The reactive power will also be kept constant below 1.5 MVAR. Waveforms will be presented.

  7. Coal-water slurry fuel combustion testing in an oil-fired industrial boiler. Semiannual technical progress report, February 15, 1993--August 15, 1993

    SciTech Connect (OSTI)

    Miller, B.G.; Morrison, J.L.; Poe, R.L.; Scaroni, A.W.

    1993-09-24T23:59:59.000Z

    The Pennsylvania State University is conducting a coal-water slurry fuel (CWSF) program for the United States Department of Energy (DOE) and the Commonwealth of Pennsylvania with the objective of determining the viability of firing CWSF in an industrial boiler designed for heavy fuel oil. Penn State and DOE have entered into a cooperative agreement with the purpose of determining if CWSF prepared from a cleaned coal (containing approximately 3.5 wt % ash and 0.9 wt % sulfur) can be effectively burned in a heavy fuel oil-designed industrial boiler without adverse impact on boiler rating, maintainability, reliability, and availability. The project will also generate information to help in the design of new systems specifically configured to fire these clean coal-based fuels. The approach being used in the program is as follows: 1. Install a natural gas/fuel oil-designed package boiler and generate baseline data firing natural gas; 2. Shake down the system with CWSF and begin the first 1,000 hours of testing using the burner/atomizer system provided with the boiler. The first 1,000-hour demonstration was to consist of boiler operation testing and combustion performance evaluation using CWSF preheat, a range of atomizing air pressures (up to 200 psig as compared to the 100 psig boiler manufacturer design pressure), and steam as the atomizing medium; 3. If the combustion performance was not acceptable based on the combustion efficiency obtained and the level of gas support necessary to maintain flame stabilization, then low-cost modifications were to be implemented, such as installing a quarl and testing alternative atomizers; 4. If acceptable combustion performance was not obtained with the low-cost modifications, then the first demonstration was to be terminated and the burner system replaced with one of proven CWSF design.

  8. The use of FBC wastes in the reclamation of coal slurry solids. Final technical report, September 1, 1991--August 31, 1992

    SciTech Connect (OSTI)

    Dreher, G.B.; Roy, W.R.; Steele, J.D. [Illinois State Geological Survey, Champaign, IL (United States)

    1992-12-31T23:59:59.000Z

    Five fluidized bed combustion (FBC) wastes, one agricultural limestone (Ag LS), and two coal slurry solids (CSS) samples were characterized chemically and mineralogically. Mixtures of the materials (FBC waste or Ag LS and CSS) were prepared and subjected to leaching with deionized water in laboratory experiments and with meteoric water in outdoor weathering experiments. The major cations in the leachates were calcium and sodium, with minor concentrations of magnesium and potassium. The major anions were chloride and sulfate, with minor amounts of fluoride and bicarbonate. The major minerals in the unleached FBC wastes were calcium oxide and calcium sulfate (anhydrite). The calcium oxide was hydrated upon wetting to calcium hydroxide, which was converted to calcium carbonate (calcite) upon exposure to atmospheric carbon dioxide, or carbon dioxide from the neutralization reaction of acid with calcite. The calcium hydroxide controlled the pH of leachates in the early leaching period, whereas calcite controlled the pH in the later leaching period. The alkaline calcium species in the FBC wastes effectively neutralized the acid generated by pyrite oxidation. In extracts generated by the Toxicity Characteristic Leaching Procedure (TCLP), selenium was found to be above the US EPA primary drinking water maximum contaminant level (MCL) in extracts from each of the FBC wastes and CSS samples. Mercury was above its MCL in the extract of FBC-2. The other six constituents (As, Ba, Cd, Cr, Pb, and Ag) were below their corresponding MCLS. Hence, these FBC wastes would not be classified as hazardous under the Resource Conservation and Recovery Act.

  9. Why Have Bank Interest Margins Been so High in Indonesia since the 1997/1998 Financial Crisis?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    this fact. Demirgüç- Kunt and Huizinga (1998) show that the average margins of Indonesian banks for the 1988

  10. Green Bank Telescope Studies of Giant Pulses from Millisecond Pulsars

    E-Print Network [OSTI]

    H. S. Knight; M. Bailes; R. N. Manchester; S. M. Ord; B. A. Jacoby

    2005-12-13T23:59:59.000Z

    We have conducted a search for giant pulses from four millisecond pulsars using the 100m Green Bank Telescope. Coherently dedispersed time-series from PSR J0218+4232 were found to contain giant pulses of very short intrinsic duration whose energies follow power-law statistics. The giant pulses are in phase with the two minima of the radio integrated pulse profile but are phase aligned with the peaks of the X-ray profile. Historically, individual pulses more than 10-20 times the mean pulse energy have been deemed to be ``giant pulses''. As only 4 of the 155 pulses had energies greater than 10 times the mean pulse-energy, we argue the emission mechanism responsible for giant pulses should instead be defined through: (a) intrinsic timescales of microsecond or nanosecond duration; (b) power-law energy statistics; and (c) emission occurring in narrow phase-windows coincident with the phase windows of non-thermal X-ray emission. Four short-duration pulses with giant-pulse characteristics were also observed from PSR B1957+20. As the inferred magnetic fields at the light cylinders of the millisecond pulsars that emit giant pulses are all very high, this parameter has previously been considered to be an indicator of giant pulse emissivity. However, the frequency of giant pulse emission from PSR~B1957+20 is significantly lower than for other millisecond pulsars that have similar magnetic fields at their light cylinders. This suggests that the inferred magnetic field at the light cylinder is a poor indicator of the rate of emission of giant pulses.

  11. Measuring and Understanding the Energy Use Signatures of a Bank Building

    SciTech Connect (OSTI)

    Xie, YuLong; Liu, Bing; Athalye, Rahul A.; Baechler, Michael C.; Sullivan, Greg

    2012-08-12T23:59:59.000Z

    The Pacific Northwest National Laboratory measured and analyzed the energy end-use patterns in a bank building located in the north-eastern United States. This work was performed in collaboration with PNC Financial Service Group under the US DOE’s Commercial Building Partnerships Program. This paper presents the metering study and the results of the metered data analysis. It provides a benchmark for the energy use of different bank-related equipments. The paper also reveals the importance of metering in fully understanding building loads and indentifying opportunities for energy efficiency improvements that will have impacts across PNC’s portfolio of buildings and were crucial to reducing receptacle loads in the design of a net-zero bank branches. PNNL worked with PNC to meter a 4,000 ft2 bank branch in the state of Pennsylvania. 71 electrical circuits were monitored and 25 stand-alone watt-hour meters were installed at the bank. These meters monitored the consumption of all interior and exterior lighting, receptacle loads, service water heating, and the HVAC rooftop unit at a 5-minute sampling interval from November 2009 to November 2010. A total of over 8 million data records were generated, which were then analyzed to produce the end-use patterns, daily usage profiles, rooftop unit usage cycles, and inputs for calibrating the energy model of the building.

  12. Case Study - Compressed Natural Gas Refuse Fleets

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C o . C lKieling , ActingOrficePENNELCNG

  13. Genealogy of a Wright Fisher model with strong seed bank Jochen Blath, Bjarki Eldon, Adrian Gonzalez Casanova, Noemi Kurt

    E-Print Network [OSTI]

    Blath, Jochen

    Genealogy of a Wright Fisher model with strong seed bank component Jochen Blath, Bjarki Eldon, Adri of the genealogy of a Wright-Fisher population model under the influence of a strong seed-bank effect. More or long genealogical jumps (the latter modeling the effect of seed-dormancy). We assume that the length

  14. NATIONAL RADIO ASTRONOMY OBSERVATORY TITLE: USE OF THE VAX-11 FARANT MICROWAVE DESIGN PROGRAM FROM GREEN BANK

    E-Print Network [OSTI]

    Groppi, Christopher

    GREEN BANK AUTHOR(S): R. Norrod DATE: September 27, 1982 DISTRIBUTION: GB Library CV Library VLA Library TU Libraries: J. Payne P. Napier H. Hvatum M. Balister S. Weinreb C. Burgess P. Napier R. Lacasse W #12;USE OF THE VAX-il FARANT MICROWAVE DESIGN PROGRAM FROM GREEN BANK R. Norrod Recently, I have

  15. An Early Warning System for Bankruptcy Prediction: lessons from the Venezuelan Bank Crisis

    E-Print Network [OSTI]

    Trigo, Loren; Gonzalez, Felix; Llamozas, Jose

    2007-01-01T23:59:59.000Z

    During 1993-94 Venezuela experienced a severe banking crisis which ended up with 18 commercial banks intervened by the government. Here we develop an early warning system for detecting credit related bankruptcy through discriminant functions developed on financial and macroeconomic data predating the crisis. A robustness test performed on these functions shows high precision in error estimation. The model calibrated on pre-crisis data could detect abnormal financial tension in the late Banco Capital many months before it was intervened and liquidated.

  16. Carbonate sedimentation in the vicinity of Arcas Reef, Campeche Bank, Mexico

    E-Print Network [OSTI]

    Snead, Robert Garland

    1964-01-01T23:59:59.000Z

    OF SCI ENCE August, 1$6It Illajor Subject: Geological Oceanography CARBONATE SEDIMENTAT ION IN THE V ICI NITY OF ARCAS REEF) CAMPECHE BANK, MEXICO A Thee is by Robert G. Snead Approved as to style and content by. airman of mittee Committee em er...CARBONATE SEDIMENTATION I N THE VI CI NITY OF ARCAS REEF) CAMPECHE BANK, MEXICO A Thea is Rober t G. Snead Submitted to the Graduate College of Texas A&M Uni vers i ty in partial fulf i 1lment of the requirements for the degree of IIIIASTER...

  17. Sediments and reef corals of Cayo Arenas, Campeche Bank, Yucatan, Mexico

    E-Print Network [OSTI]

    Busby, Roswell Franklyn

    1965-01-01T23:59:59.000Z

    SEDIMENTS AND REEF CORALS OF CAYO ARENAS, CAMPECHE BANK) YUCATAN, MEXICO A Thesis By ROSWELL F. BUSBY Submitted to the Graduate College of the Texas AbM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... January 1965 Maj or Sub)cot: OCEANOGRAPHY SEDIMENTS AND REEF CORALS OF CAYO ARENAS, CAMPECHE BANK, YUCATAN, MEXICO A Thesis By ROSWELL F, BUSBY Approved as to style and content by: a o omm ttee Mem er Hea o pa t t em er January 1965 4...

  18. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. U.S. Commercial Banks And The Developing-Country Debt Crisi

    E-Print Network [OSTI]

    permission. U.S. Commercial Banks And The Developing-Country Debt Crisi Sachs, Jeffrey; Huizinga, Harry

  19. GenBank is the NIH nucleotide sequence database. It is part of the International Nucleotide Sequence Database Collaboration, with the DNA

    E-Print Network [OSTI]

    Levin, Judith G.

    1 GenBank GenBank® is the NIH nucleotide sequence database. It is part of the International Nucleotide Sequence Database Collaboration, with the DNA DataBank of Japan (DDBJ) and the European Molecular as background slides. Exercise 1 1. Retrieve entries containing the word "pannexin" from the nucleotide database

  20. A LOW COST BRUSH DEFLECTION SYSTEM FOR BANK STABILIZA-TION AND REVEGETATION1

    E-Print Network [OSTI]

    Standiford, Richard B.

    and gravel bars and potential obstacles, and provides revegetation while re- quiring periodic maintenance sedimentation and bank stability. Lo- cally available biological materials were used and labor was provided in the urban area has experienced increasing amounts of runoff and a long history of gravel mining, degrading

  1. Ostracoda of Moss Town Blue Hole, Great Exuma Island, Great Bahama Bank (Crustacea: Ostracoda: Myodocopa)

    E-Print Network [OSTI]

    Iliffe, Thomas M.

    Ostracoda of Moss Town Blue Hole, Great Exuma Island, Great Bahama Bank (Crustacea: Ostracoda Halocypridina, and one Cladocopina) are reported from 30 to 60 m depths in Moss Town Blue Hole, an ocean blue. The collection from Moss Town Blue Hole contained no new species, but five species had not been reported

  2. Stretching Your Dollars: Choosing Your Bank1 Mary N. Harrison2

    E-Print Network [OSTI]

    Watson, Craig A.

    Sheet FCS 5097, a series of the Department of Famiily, Youth and Community Sciences, Florida Cooperative fee (for example, $.50) for each additional check written. Other banks may have a lower monthly fee a safety deposit box, you may not be charged a monthly fee and are allowed to write as many checks as you

  3. A Case Study: Using Integrated Approach to Design a Net-Zero Bank Branch

    SciTech Connect (OSTI)

    Athalye, Rahul A.; Xie, YuLong; Liu, Bing; Baechler, Michael C.

    2012-10-26T23:59:59.000Z

    This paper describes a real life project conducted by the Pacific Northwest National Laboratory and PNC Financial Services Group's design team. This is a demonstration project supported by the U.S. Department of Energy's Commercial Partnerships Program, the goal of which is to design and construct a new-zero energy bank branch in Fort Lauderdale, Florida.

  4. Estimating attenuation properties of bentonite layer in Cut Bank oil field, Glacier County, Montana

    E-Print Network [OSTI]

    Karakurt, Necdet

    2006-04-12T23:59:59.000Z

    -8 to analyze the formation structure in depth, since seismic signals around the reservoir area were unclear in the 3-D survey. This research attempts to estimate the attenuation properties of the Bentonite layer in the Cut Bank oil field. VSP data is processed...

  5. Efficient generation and optimization of stochastic template banks by a neighboring cell algorithm

    E-Print Network [OSTI]

    Henning Fehrmann; Holger J. Pletsch

    2014-11-17T23:59:59.000Z

    Placing signal templates (grid points) as efficiently as possible to cover a multi-dimensional parameter space is crucial in computing-intensive matched-filtering searches for gravitational waves, but also in similar searches in other fields of astronomy. To generate efficient coverings of arbitrary parameter spaces, stochastic template banks have been advocated, where templates are placed at random while rejecting those too close to others. However, in this simple scheme, for each new random point its distance to every template in the existing bank is computed. This rapidly increasing number of distance computations can render the acceptance of new templates computationally prohibitive, particularly for wide parameter spaces or in large dimensions. This work presents a neighboring cell algorithm that can dramatically improve the efficiency of constructing a stochastic template bank. By dividing the parameter space into sub-volumes (cells), for an arbitrary point an efficient hashing technique is exploited to obtain the index of its enclosing cell along with the parameters of its neighboring templates. Hence only distances to these neighboring templates in the bank are computed, massively lowering the overall computing cost, as demonstrated in simple examples. Furthermore, we propose a novel method based on this technique to increase the fraction of covered parameter space solely by directed template shifts, without adding any templates. As is demonstrated in examples, this method can be highly effective..

  6. Policy Research Working Paper 4844, World Bank, Washington DC, April 2009 Weakly Relative Poverty

    E-Print Network [OSTI]

    Krivobokova, Tatyana

    Policy Research Working Paper 4844, World Bank, Washington DC, April 2009 Weakly Relative Poverty, 20433, USA Abstract: Prevailing measures of relative poverty are unchanged when all incomes grow that relax these assumptions. On calibrating our measures to national poverty lines and survey data, we find

  7. GridBank: A Grid Accounting Services Architecture (GASA) for Distributed Systems Sharing and Integration

    E-Print Network [OSTI]

    Buyya, Rajkumar

    GridBank: A Grid Accounting Services Architecture (GASA) for Distributed Systems Sharing Australia Nedlands, Western Australia, 6009 barmouta@csse.uwa.edu.au Rajkumar Buyya Grid Computing and Distributed Systems (GRIDS) Lab Dept. of Computer Science and Software Engineering The University of Melbourne

  8. Please consider the environment before printing World Bank, European governments finance illegal timber

    E-Print Network [OSTI]

    Please consider the environment before printing World Bank, European governments finance illegal all been implicated in financing illegal logging operations in Madagascar's national parks over the past year. Even as foreign governments condemned the surge in illegal logging last year, many

  9. DEMONSTRATION OF THE DWPF FLOWSHEET IN THE SRNL SHIELDED CELLS USING ARP PRODUCT SIMULANT AND SB4 TANK 40 SLUDGE SLURRY

    SciTech Connect (OSTI)

    Lambert, D; John Pareizs, J; Bradley Pickenheim, B; Cj Bannochie, C; Michael Stone, M; Damon Click, D; Erich Hansen, E; Kim Crapse, K; David Hobbs, D

    2008-05-14T23:59:59.000Z

    The radioactive startup of two new SRS processing facilities, the Actinide Removal Process (ARP) and the Modular Caustic-Side-Solvent-Extraction Unit (MCU) will add two new waste streams to the Defense Waste Processing Facility (DWPF). The ARP will remove actinides from the 5.6 M salt solution resulting in a sludge-like product that is roughly half monosodium titanate (MST) insoluble solids and half sludge insoluble solids. The ARP product will be added to the Sludge Receipt and Adjustment Tank (SRAT) at boiling and dewatered prior to pulling a SRAT receipt sample. The cesium rich MCU stream will be added to the SRAT at boiling after both formic and nitric acid have been added and the SRAT contents concentrated to the appropriate endpoint. A concern was raised by an external hydrogen review panel that the actinide loaded MST could act as a catalyst for hydrogen generation (Mar 15, 2007 report, Recommendation 9). Hydrogen generation, and it's potential to form a flammable mixture in the off-gas, under SRAT and Slurry Mix Evaporator (SME) processing conditions has been a concern since the discovery that noble metals catalyze the decomposition of formic acid. Radiolysis of water also generates hydrogen, but the radiolysis rate is orders of magnitude lower than the noble metal catalyzed generation. As a result of the concern raised by the external hydrogen review panel, hydrogen generation was a prime consideration in this experiment. Testing was designed to determine whether the presence of the irradiated ARP simulant containing MST caused uncontrolled or unexpected hydrogen production during experiments simulating the DWPF Chemical Process Cell (CPC) due to activation of titanium. A Shielded Cells experiment, SC-5, was completed using SB4 sludge from Tank 405 combined with an ARP product produced from simulants by SRNL researchers. The blend of sludge and MST was designed to be prototypic of planned DWPF SRAT and SME cycles. As glass quality was not an objective in this experiment, no vitrification of the SME product was completed. The results from this experiment were compared to the results from experiment SC-1, a similar experiment with SB4 sludge without added ARP product. This report documents: (1) The preparation and subsequent composition of the ARP product. (2) The preparation and subsequent compositional characterization of the SRAT Receipt sample. Additional details will be presented concerning the noble metal concentration of the ARP product and the SRAT receipt sample. Also, calculations related to the amount of formic and nitric acid added during SRAT processing will be presented as excess formic acid will lead to additional hydrogen generation. (3) Highlights from processing during the SRAT cycle and SME cycle (CPC processing). Hydrogen generation will be discussed since this was the prime objective for this experiment. (4) A comparison of CPC processing between SC-1 (without ARP simulant) and SC-5. This work was controlled by a Task Technical and Quality Assurance Plan (TTQAP)6, and analyses were guided by an Analytical Sample Support Matrix (ASSM)7. This Research and Development (R&D) was completed to support operation of DWPF.

  10. KINETIC MODELING OF A FISCHER-TROPSCH REACTION OVER A COBALT CATALYST IN A SLURRY BUBBLE COLUMN REACTOR FOR INCORPORATION INTO A COMPUTATIONAL MULTIPHASE FLUID DYNAMICS MODEL

    SciTech Connect (OSTI)

    Anastasia Gribik; Doona Guillen, PhD; Daniel Ginosar, PhD

    2008-09-01T23:59:59.000Z

    Currently multi-tubular fixed bed reactors, fluidized bed reactors, and slurry bubble column reactors (SBCRs) are used in commercial Fischer Tropsch (FT) synthesis. There are a number of advantages of the SBCR compared to fixed and fluidized bed reactors. The main advantage of the SBCR is that temperature control and heat recovery are more easily achieved. The SBCR is a multiphase chemical reactor where a synthesis gas, comprised mainly of H2 and CO, is bubbled through a liquid hydrocarbon wax containing solid catalyst particles to produce specialty chemicals, lubricants, or fuels. The FT synthesis reaction is the polymerization of methylene groups [-(CH2)-] forming mainly linear alkanes and alkenes, ranging from methane to high molecular weight waxes. The Idaho National Laboratory is developing a computational multiphase fluid dynamics (CMFD) model of the FT process in a SBCR. This paper discusses the incorporation of absorption and reaction kinetics into the current hydrodynamic model. A phased approach for incorporation of the reaction kinetics into a CMFD model is presented here. Initially, a simple kinetic model is coupled to the hydrodynamic model, with increasing levels of complexity added in stages. The first phase of the model includes incorporation of the absorption of gas species from both large and small bubbles into the bulk liquid phase. The driving force for the gas across the gas liquid interface into the bulk liquid is dependent upon the interfacial gas concentration in both small and large bubbles. However, because it is difficult to measure the concentration at the gas-liquid interface, coefficients for convective mass transfer have been developed for the overall driving force between the bulk concentrations in the gas and liquid phases. It is assumed that there are no temperature effects from mass transfer of the gas phases to the bulk liquid phase, since there are only small amounts of dissolved gas in the liquid phase. The product from the incorporation of absorption is the steady state concentration profile of the absorbed gas species in the bulk liquid phase. The second phase of the model incorporates a simplified macrokinetic model to the mass balance equation in the CMFD code. Initially, the model assumes that the catalyst particles are sufficiently small such that external and internal mass and heat transfer are not rate limiting. The model is developed utilizing the macrokinetic rate expression developed by Yates and Satterfield (1991). Initially, the model assumes that the only species formed other than water in the FT reaction is C27H56. Change in moles of the reacting species and the resulting temperature of the catalyst and fluid phases is solved simultaneously. The macrokinetic model is solved in conjunction with the species transport equations in a separate module which is incorporated into the CMFD code.

  11. Synthesis gas conversion in a mixed slurry reactor with iron-manganese catalysts. [Four catalysts with iron-manganese ratios of 57/43, 44/56, 22/78, and 10/90

    SciTech Connect (OSTI)

    Pennline, H.W.; Zarochak, M.F.; Tischer, R.E.; Schehl, R.R.

    1984-01-01T23:59:59.000Z

    Synthesis gas was reacted over different compositions of iron-manganese Fischer-Tropsch catalysts in a slurry reactor. The reactor operates in a back-mixed mode with a continuous flow of feed gas through the catalyst suspended in the liquid medium. Four catalysts with iron-manganese ratios of 57/43, 44/56, 22/78, and 10/90 were investigated at identical process conditions after a standard activation procedure. With time on stream for each catalyst system, hydrogenation of olefins occurred, along with olefin isomerization reactions. Activity, selectivity, and stability are discussed in general. Analyses of used catalyst samples are also reported. 20 refs., 2 figs., 4 tabs.

  12. Conventional Wet Chemistry ICP-AES Development for RPP-WTP AY-102/C-106 Melter Feed Slurry Simulants - A Statistical Review of the Results from the Phase I Study

    SciTech Connect (OSTI)

    Edwards, Thomas B.

    2005-04-30T23:59:59.000Z

    The River Protection Project (RPP)--Hanford Waste Treatment and Immobilization Plant (WTP) is to prepare and process High Level Waste (HLW) streams into glass waste forms that will meet HLW disposal requirements. Samples of HLW sludge and samples of this sludge mixed with glass-forming chemicals are to be taken and analyzed for process control. Glass characterization from the melter is not included in the scope. The development of viable analytical protocols to provide the required elemental analyses of these samples with rapid turnaround times (before and after addition of the glass-forming chemicals) has been defined as an RPP statement of work for the Analytical Development Section (ADS) of the Savannah River National Laboratory (SRNL). Wet chemistry is serving as the baseline comparison to laser ablation for method development. One of the simulants used in this study by ADS was AY-102/C-106 melter feed slurry simulant, a simulant used to represent HLW samples after the addition of glass-forming chemicals. Several different dissolution methods were used by ADS in preparing samples of this simulant for elemental analyses by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The measurements generated by this process were provided to SRNL's Statistical Consulting Section (SCS) for analysis. The measurement data generated for samples of the RPP-WTP AY-102/C-106 melter feed slurry simulant are presented in this report and the different approaches used to prepare the samples are statistically compared. Comparisons among three of the dissolution methods are highlighted in this analysis. The methods are: sodium peroxide fusion in nickel crucibles, acidification with HNO{sub 3}/HCL at room temperature, and cesium carbonate fusion in zirconium crucibles. A summary table of the measurement averages generated by the three methods is presented. The cesium carbonate fusion method yielded measurements with significantly different mean values from the other two preparation methods for several of the elements.

  13. Gas/slurry flow in coal-liquefaction processes (fluid dynamics in a three-phase-flow column). Final technical progress report, 1 October 1979-31 March 1982

    SciTech Connect (OSTI)

    Ying, D.H.S.; Sivasubramanian, R.; Moujaes, S.F.; Givens, E.N.

    1982-04-01T23:59:59.000Z

    A commercial coal liquefaction plant will employ vertical tubular reactors feeding slurry and gas concurrently upward through these vessels. In the SRC-I plant design the reactor is essentially an empty vessel with only a distributor plate located near the inlet. Because the commercial plant represents a considerable scale-up over Wilsonville or any pilot plant, this program addressed the need for additional data on behavior of three phase systems in large vessels. Parameters that were investigated in this program were studied at conditions that relate directly to projected plant operating conditions. The fluid dynamic behavior of the three-phase upflow system was studied by measuring gas and slurry holdup, liquid dispersion, solids suspension and solids accumulation. The dependent parameters are gas and liquid velocities, solid particle size, solids concentration, liquid viscosity, liquid surface tension and inlet distributor. Within the range of liquid superficial velocity from 0.0 to 0.5 ft/sec, gas holdup is found to be independent of liquid flow which agrees with other investigators. The results also confirm our previous finding that gas holdup is independent of column diameter when the column diameter is 5 inches or larger. The gas holdup depends strongly on gas flow rate; gas holdup increases with increasing gas velocity. The effect of solids particles on gas holdup depends on the gas flow rate. Increasing liquid viscosity and surface tension reduce gas holdup which agrees with other investigators. Because of the complexity of the system, we could not find a single correlation to best fit all the data. The degree of liquid backmixing markedly affects chemical changes occurring in the dissolver, such as sulfur removal, and oil and distillate formation.

  14. Banking sector of the Russian Federation : study of the correlation between commodity prices and key safety, soundness and performance indicators

    E-Print Network [OSTI]

    Sinilov, Nikolay

    2010-01-01T23:59:59.000Z

    The purpose of this work is to provide a comprehensive overview of the state of banking system in Russia, and to understand its core dependencies and potential risks. The system, the way we find it now, has evolved though ...

  15. Assessments of Biodiversity Based on Molecular Markers and Morphological Traits among West-Bank, Palestine Fig Genotypes (Ficus carica L.)

    E-Print Network [OSTI]

    Basheer-Salimia, Rezq; Awad, Murad; Ward, Joy K.

    2012-09-26T23:59:59.000Z

    Both morphological characters and PCR-based RAPD approaches were used to determine the genetic diversity and re- latedness among nine fig genotypes grown at the northern region of the West-Bank, Palestine. Although we ...

  16. Essays in monetary policy conduction and its effectiveness: monetary policy rules, probability forecasting, central bank accountability, and the sacrifice ratio

    E-Print Network [OSTI]

    Gabriel, Casillas Olvera,

    2004-11-15T23:59:59.000Z

    Policy Conduction and Its Effectiveness: Monetary Policy Rules, Probability Forecasting, Central Bank Accountability, and the Sacrifice Ratio. (August 2004) Gabriel Casillas Olvera, B.A., Instituto Tecnol?gico y de Estudios Superiores de Monterrey..., Campus Estado de Mexico Chair of Advisory Committee: Dr. David A. Bessler Monetary policy has been given either too many positive attributes or, in contrast, only economy-disturbing features. Central banks must take into account a wide variety...

  17. High resolution seismic and paleomagnetic study of the structure and sedimentation of Sweet and Phleger Banks, northern Gulf of Mexico

    E-Print Network [OSTI]

    Singleton, Scott Wayne

    1988-01-01T23:59:59.000Z

    Core Analysis Geologic Descriptions Magnetic Analysis CHAPTER IV DISCUSSION 70 70 73 77 Stratigraphy . Unit 1 . 77 77 Unit 2 79 Unit 3 81 Structure 83 Phleger Bank Dome Development Sweet Bank Dome Development Radial Faults Magnetic... of resolution. The bathymetry data was then plotted and contoured at a 10 m interval. This interva! was fine enough to reveal the details of dome shape, but broad enough to allow for navigation errors. Seismic Stratigraphy The seismic stratigraphic analysis...

  18. Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals

    DOE Patents [OSTI]

    Moradi, Hussein; Farhang, Behrouz; Kutsche, Carl A

    2014-10-14T23:59:59.000Z

    A transmitter includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses. A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.

  19. Methods and apparatuses using filter banks for multi-carrier spread-spectrum signals

    DOE Patents [OSTI]

    Moradi, Hussein; Farhang, Behrouz; Kutsche, Carl A

    2014-05-20T23:59:59.000Z

    A transmitter includes a synthesis filter bank to spread a data symbol to a plurality of frequencies by encoding the data symbol on each frequency, apply a common pulse-shaping filter, and apply gains to the frequencies such that a power level of each frequency is less than a noise level of other communication signals within the spectrum. Each frequency is modulated onto a different evenly spaced subcarrier. A demodulator in a receiver converts a radio frequency input to a spread-spectrum signal in a baseband. A matched filter filters the spread-spectrum signal with a common filter having characteristics matched to the synthesis filter bank in the transmitter by filtering each frequency to generate a sequence of narrow pulses. A carrier recovery unit generates control signals responsive to the sequence of narrow pulses suitable for generating a phase-locked loop between the demodulator, the matched filter, and the carrier recovery unit.

  20. Radiative component and combined heat transfer in the thermal calculation of finned tube banks

    SciTech Connect (OSTI)

    Stehlik, P. [Technical Univ. of Brno (Czech Republic). Dept. of Process Engineering] [Technical Univ. of Brno (Czech Republic). Dept. of Process Engineering

    1999-01-01T23:59:59.000Z

    For more exact calculation of combined heat transfer in the case of finned tube banks (e.g., in the convective section of a furnace), the radiative heat transfer cannot be neglected. A new method for relatively simple calculation of total heat flux (convection + radiation + conduction in fins) is fully compatible with that for bare tube banks/bundles developed earlier. It is based on the method of radiative coefficients. However, the resulting value of heat flux must be corrected due to fin thickness and especially due to the fin radiative influence. For this purpose the so-called multiplicator of heat flux was introduced. The applicability of this methods has been demonstrated on a tubular fired heater convective section. A developed computer program based on the method has also been used for an analysis of the influence of selected parameters to show the share of radiation on the total heat flux.

  1. Biology, control and synonomy of the red spider mites, Tetranychus opuntiae Banks and Tetranychus bimaculatus Harvey

    E-Print Network [OSTI]

    Iglinsky, William

    1951-01-01T23:59:59.000Z

    1'ITES, TETPANYCHUS OPUNTIAE BANKS AND TETPANYCHUS BIMACULATUS HARVEY A DISSERTATION Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in Partial Fulfillment of the Requirements for the Degree of Doctor... dosages, the author wishes to express his sincerest apprecia? tion* ii 137124 OBLGY ,C N,TOYTOR CADS BMFEvAlE '''''''''''''''''''''''H UP UKEvVislEeVK '''''''''' ' 1 UUP rSvtSa Vo Ge...

  2. Measurements of ship-induced flow and its effect on bank erosion

    E-Print Network [OSTI]

    Yu, Hongbin

    1997-01-01T23:59:59.000Z

    and Discussion C. Existing Models Review D. Modification of Model and Computation E. Boundary Layer Consideration . F. Comparisons with Field Measurements 12 12 15 19 25 30 TABLE OF CONTENTS (Continued) CHAPTER Page IV SHIP WAVES A. Description B... only considers flow parallel to the channel. The mea; surements indicate that passing barges may generate substantial flow perpendicular to the bank depending on the near-shore topography. Also, the model assumes a 25 uniform distribution...

  3. Regional geology of Georges Bank basin - OCS Sale 42 drilling results

    SciTech Connect (OSTI)

    High, L.R. Jr.

    1985-02-01T23:59:59.000Z

    Industry bid aggressively in OCS Sale 42, spending $816 million. Eight wildcats were drilled in 1981-82 to test 5 major plays. All wells were dry; no potential reservoir or source rocks were found. The tectonic-stratigraphic framework of the Georges Bank basin is that of an Atlantic-type plate margin. Two major unconformities divide the section into prerift, synrift, and postrift sequences. The prerift sequence consists of Paleozoic metasediments in basement fault blocks. Synrift sediments consist of Newark Group equivalents: the Argo Salt and the Iroquoi Formation. The postrift sequence consists of Mohican red beds overlain by progradational wedges, with the carbonate Abenaki Formation at the base. The objective in 4 of the 8 wildcats was the Iroquois Formation. Mobil 312-1 and Shell 357-1 were drilled into a seismic anomaly interpreted to be a reef. This structure was found to be a complex carbonate mound. Exxon 975-1 was drilled on a seismic amplitude anomaly variously interpreted to be the result of salt, coal, or porous carbonates. This anomaly proved to be caused by a salt bed. The objective in Shell 410-1R was carbonate banks over a basement horst block. No significant zones of porosity were found. The remaining 4 wildcats were drilled on Abenaki prospects. Mobil 273-1, Tenneco 187-1d, and Conoco 145-1 were drilled for possible carbonate banks over a salt structure. Only thin oolitic grainstone intervals were found. Exxon 133-1 was based on a seismic anomaly interpreted to be a patch reef. This feature was found to be a volcanic cone.

  4. EA-330 The Royal Bank of Scotland plc | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197EFindingEA-257-CEA-296-B22 EmeraEA-330 The Royal Bank of

  5. EA-330-A The Royal Bank of Scotland plc | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197EFindingEA-257-CEA-296-B22 EmeraEA-330 The Royal Bank

  6. Banks County, Georgia ASHRAE 169-2006 Climate Zone | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomass Conversions Inc JumpIM 2011-003Vermont: EnergyclockBank of Italy Jump

  7. World Bank-The Role of Nonmotorized Transport | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapers Home Kyoung'sWoongjin Polysilicon Co Ltd Jump to:DataBank-The

  8. Habitat use, growth, and mortality of post-settlement lane snapper (Lutjanus synagris) on natural banks in the northwestern Gulf of Mexico

    E-Print Network [OSTI]

    Mikulas, Joseph John

    2009-05-15T23:59:59.000Z

    , shell ridge, offshore mud), designated by side-scan sonar surveys, to determine patterns of distribution and abundance. Heald Bank and Sabine Bank were trawled in 2003 while Freeport Rocks was trawled in 2000 (Freeport A) and 2004 (Freeport B). Density...

  9. Description and analysis of flintlock pistols recovered from a seventeenth-century shipwreck on Pedro Bank, Jamaica

    E-Print Network [OSTI]

    Garigen, Lisa Lynn

    1991-01-01T23:59:59.000Z

    a definitive catalog of all the pistols recovered from the Spanish fleet ship that sunk in 1691 on Pedro Bank, Jamaica. To this end, I will present a brief history of the Spanish fleets to provide general knowledge about the Tierra Firme fleet... quarter of the 17th century and thereafter, their use spread rapidly. By the time the 1691 Tierra Firme Fleet was lost on Pedro Bank, the use of flintlock pistols was almost universal. They were being built throughout Europe and even in some parts...

  10. Building a stochastic template bank for detecting massive black hole binaries

    E-Print Network [OSTI]

    Stanislav Babak

    2008-01-26T23:59:59.000Z

    Coalescence of two massive black holes is the strongest and most promising source for LISA. In fact, gravitational signal from the end of inspiral and merger will be detectable throughout the Universe. In this article we describe the first step in the two-step hierarchical search for gravitational wave signal from the inspiraling massive BH binaries. It is based on the routinely used in the ground base gravitational wave astronomy method of filtering the data through the bank of templates. However we use a novel Monte-Carlo based (stochastic) method to lay a grid in the parameter space, and we use the likelihood maximized analytically over some parameters, known as F-statistic, as a detection statistic. We build a coarse template bank to detect gravitational wave signals and to make preliminary parameter estimation. The best candidates will be followed up using Metropolis-Hasting stochastic search to refine the parameter estimation. We demonstrate the performance of the method by applying it to the Mock LISA data challenge 1B (training data set).

  11. Solar heating system at Quitman County Bank, Marks, Mississippi. Final report

    SciTech Connect (OSTI)

    None

    1980-06-01T23:59:59.000Z

    Information is provided on the solar heating system installed in a single story wood frame, cedar exterior, sloped roof building, the Quitman County Bank, a branch of the First National Bank of Clarksdale, Mississippi. It is the first solar system in the geographical area and has promoted much interest. The system has on-site temperature and power measurements readouts. The 468 square feet of Solaron air flat plate collectors provide for 2000 square feet of space heating, an estimated 60% of the heating load. Solar heated air is distributed to the 235 cubic foot rock storage box or to the load (space heating) by a 960 cubic feet per minute air handler unit. A 7.5 ton Carrier air-to-air heat pump with 15 kilowatts of electric booster strips serve as a back-up (auxiliary) to the solar system. Motorized dampers control the direction of airflow and back draft dampers prevent thermal siphoning of conditioned air. The system was turned on in September 1979, and acceptance testing completed in February 1980. This is a Pon Cycle 3 Project with the Government sharing $13,445.00 of the $24,921 Solar Energy System installation cost.

  12. A two-period model of emission abatement and allowance banking under uncertainty

    SciTech Connect (OSTI)

    Hanson, D.A.

    1991-01-01T23:59:59.000Z

    This paper deals with the effects of uncertainty and risk aversion on market outcomes for SO{sub 2} emission allowance prices and on electric utility compliance choices. The 1990 Clean Air Act Amendments (CAAA) provide about twice as many SO{sub 2} allowances to be issued per year in Phase I (1995--1999) than in Phase II. Also, considering the scrubber incentives in Phase I, there is likely to be substantial emission banking for use in Phase II. Allowance prices may increase over time at a rate less than the return on alternative investments with allowances being banked only by risk averse electric utilities. Speculators are likely to be willing to set allowances in forward markets, which will lower current market prices of allowances relative to a situation with only risk averse utilities in the market. The Argonne Utility Simulation Model (ARGUS2) is being revised to incorporate the provisions of the CAAA acid rain title and to simulate SO{sub 2} allowance prices, compliance choices, capacity expansion, system dispatch, fuel use, and emissions using a unit level data base and alternative scenario assumptions.

  13. A two-period model of emission abatement and allowance banking under uncertainty

    SciTech Connect (OSTI)

    Hanson, D.A.

    1991-12-31T23:59:59.000Z

    This paper deals with the effects of uncertainty and risk aversion on market outcomes for SO{sub 2} emission allowance prices and on electric utility compliance choices. The 1990 Clean Air Act Amendments (CAAA) provide about twice as many SO{sub 2} allowances to be issued per year in Phase I (1995--1999) than in Phase II. Also, considering the scrubber incentives in Phase I, there is likely to be substantial emission banking for use in Phase II. Allowance prices may increase over time at a rate less than the return on alternative investments with allowances being banked only by risk averse electric utilities. Speculators are likely to be willing to set allowances in forward markets, which will lower current market prices of allowances relative to a situation with only risk averse utilities in the market. The Argonne Utility Simulation Model (ARGUS2) is being revised to incorporate the provisions of the CAAA acid rain title and to simulate SO{sub 2} allowance prices, compliance choices, capacity expansion, system dispatch, fuel use, and emissions using a unit level data base and alternative scenario assumptions.

  14. Siemens und Axsionics sichern Online-Banking mit Internetpass ab ... http://www.computerwoche.de/_misc/article/articleprintpopup/index... 1 of 2 01/25/08 12:16

    E-Print Network [OSTI]

    Borchert, Bernd

    Siemens und Axsionics sichern Online-Banking mit Internetpass ab ... http://www.computerwoche.de/_misc/article/articleprintpopup/index... 1 of 2 01/25/08 12:16 Datum: URL: Siemens und Axsionics sichern Online-Banking mit Internetpass ab-Erkennung will Siemens IT Solutions and Services einen neuen Online-Banking-Standard in Deutschland einführen. Mit dem

  15. Convective flow of refrigerant (R-123) across a bank of micro pin fins Ali Kosar, Yoav Peles *

    E-Print Network [OSTI]

    Peles, Yoav

    , and pressure drop of R-123 over a bank of shrouded micro pin fins 243 lm long with hydraulic diameter of 99 in diverse applications [1,5,12,14] to augment systems' thermal-hydraulic and chemical perfor- mance studied in the context of turbine blade cooling. Nusselt number and friction factor correlations

  16. Interest rate premiums and capital rationing in agriculture: a look at the effects of multi-regional banking in Texas

    E-Print Network [OSTI]

    Gray, Allan Wayne

    1993-01-01T23:59:59.000Z

    -efficient portfolio for a multi-regional bank in Northwest Texas. A whole farm simulation model was used for simulating the macro-credit situation and the distributions of prices and yields for three farms under three different debt levels. The whole farm simulation...

  17. december 1, 2012 vol xlviI nos 47 & 48 EPW Economic & Political Weekly22 World Bank's Urban Water

    E-Print Network [OSTI]

    Sohoni, Milind

    's Urban Water Report on India Thinking Backwards Milind Sohoni The latest World Bank report on reform, with the reports of 2006 and 2012, urban water reform. These reports have largely set the framework within which of the agenda for the reform of the urban water supply sector, as the WB sees it. The current report

  18. Salary savings scheme 2011 (ING BANK) 11-10-2010 Personnel and Organization Department 1/1

    E-Print Network [OSTI]

    Franssen, Michael

    Salary savings scheme 2011 (ING BANK) 11-10-2010 Personnel and Organization Department 1!! The undersigned hereby declares not to participate in a "course-of-life" arrangement or a salary savings scheme-year and you can only participate in a salary savings scheme via one employer Alteration as of (enter date

  19. Establishment and maintenance of a coal sample bank and data base: Final report, November 6, 1984--April 5, 1988

    SciTech Connect (OSTI)

    Davis, A.

    1988-01-01T23:59:59.000Z

    This program had as its objective the collection and maintenance of a suite of approximately 50 selected coal samples in order to provide high-quality coal samples and related compositional data to DOE contractors and grantees. The addition of four Alaskan coal samples brought the final number of coals in the Sample Bank to 54. A minimum of 25 1/2- to 1-pound samples were riffled from each sample in the DOE Sample Bank after appropriate compositing and homogenization. These formed the basic stock for distribution to users. Five of the afore-mentioned subsamples of each coal were selected at random for ash, sulfur and moisture determination as documentation of equivalency. Analytical results from these determinations showed acceptable variations in all cases. Sample Bank samples were characterized by 14 basic analytical procedures and tests, and the data computerized. A series of computer programs are available to facilitate inventory control within the Sample Bank and to provide a means of maintaining a continuous and searchable record of the distribution of samples. 9 refs., 9 tabs.

  20. ITERATIVELY REWEIGHTED DESIGN OF OVERSAMPLING COMPLEX-MODULATED FILTER-BANKS FOR HIGH OUTPUT-SIGNAL QUALITY

    E-Print Network [OSTI]

    Göckler, Heinz G.

    of the frequency-dependent signal-to- disturbance ratio. Next, in section 3, we discuss the basic idea of the of the signal-to-disturbance ratio of the output-signal of an oversampling, complex-modulated subband-coder filter-bank pair with extensive subband-signal am- plification. The undesired non-linear disturbance

  1. Longitudinal Bank for Serum, Plasma and DNA for Detection of Biomarkers

    SciTech Connect (OSTI)

    Ward, David C

    2009-07-20T23:59:59.000Z

    With the support of this DOE appropriation, NVCI has established a biorepository for serum, plasma, DNA and urine specimens. Over 2,500 patients have been consented which is over 90% of all new patients seen at NVCI. The specimens have been coded, centrifuged, aliquoted and frozen at -80?C in a rapid manner so that they are all processed in less than 1 hour from the acquisition. There are over 28,000 aliquoted, coded tubes in our inventory. Specimens from 200 control volunteer subjects without any history of cancer also have been banked. The patient specimens are encoded and the demographics and therapeutic treatments are linked to the Oncore software. This computer program catalogues the specimens and provides a rapid conduit between the biorepository and the NVCI electronic medical record.

  2. U-235 Holdup Measurements in the 321-M Lathe HEPA Banks

    SciTech Connect (OSTI)

    Salaymeh, S.R.

    2002-07-08T23:59:59.000Z

    The Analytical Development Section of Savannah River Technology Center (SRTC) was requested by the Facilities Decommissioning Division (FDD) to determine the holdup of enriched uranium in the 321-M facility as part of an overall deactivation project of the facility. The results of the holdup assays are essential for determining compliance with the Waste Acceptance Criteria, Material Control and Accountability, and to meet criticality safety controls. This report covers holdup measurements of uranium residue in six high efficiency particulate air (HEPA) filter banks of the A-lathe and B-lathe exhaust systems of the 321-M facility. This report discusses the non-destructive assay measurements, assumptions, calculations, and results of the uranium holdup in these six items.

  3. GHIGLS: HI mapping at intermediate Galactic latitude using the Green Bank Telescope

    E-Print Network [OSTI]

    Martin, P G; Goncalves, D Pinheiro; Lockman, Felix J; Boothroyd, A I; Miville-Deschenes, M -A; Joncas, G; Stephan, G

    2015-01-01T23:59:59.000Z

    This paper introduces the data cubes from GHIGLS, our deep Green Bank Telescope surveys of the 21-cm line emission of HI in targeted fields at intermediate Galactic latitude. The GHIGLS fields together cover over 800 square degrees at 9.55' spatial resolution. The HI spectra have an effective velocity resolution about 1.0 km/s and cover at least -450 power spectra of maps of the column density, NHI. For our featured representative field, centered on the North Ecliptic Pole, the scaling exponents in power-law representations of the power spectra of NHI maps for low, intermediate, and high velocity gas components (LVC, IVC, and HVC) are -2.90 +/- 0.03, -2.55 +/- 0.04, and -2.66 +/- 0.06, respectively. After Gaussian decomposition of the line profiles, NHI maps were also made corresponding to the broad and narrow line components in the LVC...

  4. Predicting Regional Economic Indices using Big Data of Individual Bank Card Transactions

    E-Print Network [OSTI]

    Sobolevsky, Stanislav; Bojic, Iva; Arias, Juan Murillo; Ratti, Carlo

    2015-01-01T23:59:59.000Z

    For centuries quality of life was a subject of studies across different disciplines. However, only with the emergence of a digital era, it became possible to investigate this topic on a larger scale. Over time it became clear that quality of life not only depends on one, but on three relatively different parameters: social, economic and well-being measures. In this study we focus only on the first two, since the last one is often very subjective and consequently hard to measure. Using a complete set of bank card transactions recorded by Banco Bilbao Vizcaya Argentaria (BBVA) during 2011 in Spain, we first create a feature space by defining various meaningful characteristics of a particular area performance through activity of its businesses, residents and visitors. We then evaluate those quantities by considering available official statistics for Spanish provinces (e.g., housing prices, unemployment rate, life expectancy) and investigate whether they can be predicted based on our feature space. For the purpos...

  5. Association of the threespot damelsfish (Stegastes planifrons) in ridge mortality of Diploria strigosa in the flower garden banks of the National Marine Sanctuary

    E-Print Network [OSTI]

    Proppe, Darren Sean

    2013-02-22T23:59:59.000Z

    of ridge mortality, however, they do establish a relationship between S. planifrons and ridge mortality. Introduction: The East and West Hower Gardens banks, located in the Northwest Gulf of Mexico, about 180 km south southeast of Galveston, Texas... of the two banks are 19 km apart The banks occupy an area of over 300 acres and are sepamted from the neatest coral reefs off Tampico, Mexico, by more than 500 kilometers (Bright, Gittings, Rezak 90). Due to this isolauon, the Hower Gardens are rehtively...

  6. Banks Lake Fishery Evaluation Project Annual Report : Fiscal Year 2008 (March 1, 2008 to February 1, 2009).

    SciTech Connect (OSTI)

    Polacek, Matt [Washington Department of Fish and Wildlife

    2009-07-15T23:59:59.000Z

    The Washington Department of Fish and Wildlife implemented the Banks Lake Fishery Evaluation Project (BLFEP) in September 2001 with funds from the Bonneville Power Administration, and continued project tasks in 2008. The objective was to evaluate factors that could limit kokanee in Banks Lake, including water quality, prey availability, harvest, and acute predation during hatchery releases. Water quality parameters were collected twice monthly from March through November. Banks Lake water temperatures began to increase in May and stratification was apparent by July. By late August, the thermocline had dropped to 15 meters deep, with temperatures of 21-23 C in the epilimnion and 16-19 C in the hypolimnion. Dissolved oxygen levels were generally above 8 mg/L until August when they dropped near or below 5 mg/L deeper than 20-meters. Secchi depths ranged from 3.2 to 6.2 meters and varied spatially and temporally. Daphnia and copepod densities were the highest in May and June, reaching densities of 26 copepods/liter and 9 Daphnia/liter. Fish surveys were conducted in July and October 2008 using boat electrofishing, gill netting, and hydroacoustic surveys. Lake whitefish (71%) and yellow perch (16%) dominated the limnetic fish assemblage in the summer, while lake whitefish (46%) and walleye (22%) were the most abundant in gill net catch during the fall survey. Piscivore diets switched from crayfish prior to the release of rainbow trout to crayfish and rainbow trout following the release. The highest angling pressure occurred in May, when anglers were primarily targeting walleye and smallmouth bass. Boat anglers utilized Steamboat State Park more frequently than any other boat ramp on Banks Lake. Shore anglers used the rock jetty at Coulee City Park 45% of the time, with highest use occurring from November through April. Ice fishing occurred in January and February at the south end of the lake. An estimated total of 4,397 smallmouth bass, 11,106 walleye, 371 rainbow trout, and 509 yellow perch were harvested from Banks Lake in 2008. No kokanee were reported in the creel; however, local reports indicated that anglers were targeting and catching kokanee. The economic benefit of the Banks Lake fishery was estimated at $2,288,005 during 2008. Abundance estimates from the hydroacoustic survey in July were 514,435 lake whitefish and 10,662 kokanee, with an overall abundance estimate of 626,061 limnetic fish greater than 100 mm. When comparing spring fry, fall fingerling and yearling net pen release strategies of kokanee, 95% were of hatchery origin, with the highest recaptures coming from the fall fingerling release group.

  7. The World Bank's Participatory Development Approach in the Country Assistance Strategy (CAS) Paper for the Republic of Senegal: Rhetoric or Reality?

    E-Print Network [OSTI]

    Ndiaye, Rokhaya

    2009-12-18T23:59:59.000Z

    The aim of this thesis is to study the World Bank's participatory development process in the 2007 Country Assistance Strategy (CAS) for the Republic of Senegal. I seek to shed light on the question of whether or not the ...

  8. Searching for Israeliness in 'No Man's Land': an ethnographic research of Israeli citizenship in a zionist academic institute in the 'West-Bank' of Israel/Palestine 

    E-Print Network [OSTI]

    Enav, Yarden B.

    2009-01-01T23:59:59.000Z

    This thesis is the result of ethnographic research carried out in an Israeli academic institution, located in the West-Bank of Israel/Palestine. Focusing on the social science department, the research examines the content ...

  9. Anyone working to improve access to healthy food for underserved populations Food shelves, food banks, meal programs and USDA nutrition programs

    E-Print Network [OSTI]

    Amin, S. Massoud

    , Minnesota Department of Health, Minnesota Department of Human Services, Second Harvest Heartland shelves, food banks, meal programs and USDA nutrition programs · Food policy networks, public health agencies and State Health Improvement Program grantees · Health care organizations and health care

  10. THE GREEN BANK TELESCOPE H II REGION DISCOVERY SURVEY. IV. HELIUM AND CARBON RECOMBINATION LINES

    SciTech Connect (OSTI)

    Wenger, Trey V.; Bania, T. M. [Astronomy Department, 725 Commonwealth Avenue, Boston University, Boston, MA 02215 (United States)] [Astronomy Department, 725 Commonwealth Avenue, Boston University, Boston, MA 02215 (United States); Balser, Dana S. [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA, 22903-2475 (United States)] [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA, 22903-2475 (United States); Anderson, L. D. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States)] [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States)

    2013-02-10T23:59:59.000Z

    The Green Bank Telescope H II Region Discovery Survey (GBT HRDS) found hundreds of previously unknown Galactic regions of massive star formation by detecting hydrogen radio recombination line (RRL) emission from candidate H II region targets. Since the HRDS nebulae lie at large distances from the Sun, they are located in previously unprobed zones of the Galactic disk. Here, we derive the properties of helium and carbon RRL emission from HRDS nebulae. Our target sample is the subset of the HRDS that has visible helium or carbon RRLs. This criterion gives a total of 84 velocity components (14% of the HRDS) with helium emission and 52 (9%) with carbon emission. For our highest quality sources, the average {sup 4}He{sup +}/H{sup +} abundance ratio by number, (y {sup +}), is 0.068 {+-} 0.023(1{sigma}). This is the same ratio as that measured for the sample of previously known Galactic H II regions. Nebulae without detected helium emission give robust y {sup +} upper limits. There are 5 RRL emission components with y {sup +} less than 0.04 and another 12 with upper limits below this value. These H II regions must have either a very low {sup 4}He abundance or contain a significant amount of neutral helium. The HRDS has 20 nebulae with carbon RRL emission but no helium emission at its sensitivity level. There is no correlation between the carbon RRL parameters and the 8 {mu}m mid-infrared morphology of these nebulae.

  11. Biological Macromolecular Structures Data from the RCSB Protein Data Bank (RCSB PDB)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Research Collaboratory for Structural Bioinformatics (RCSB) is a non-profit consortium that works to improve understanding of the function of biological systems through the study of the 3-D structure of biological macromolecules. The RCSB PDB is one of three sites serving as deposition, data processing, and distribution sites of the Protein Data Bank Archive. Each site provides its own view of the primary data, thus providing a variety of tools and resources for the global community. RCSB is also the official keeper for the PDB archive, with sole access authority to the PDB archive directory structure and contents. The RCSB PDB Information Portal for Biological Macromolecular Structures offers online tools for search and retrieval, for visualizing structures, for depositing, validating, or downloading data, news and highlights, a discussion forum, and links to other areas of related research. The PDB archive is a repository of atomic coordinates and other information describing proteins and other important biological macromolecules. Structural biologists use methods such as X-ray crystallography, NMR spectroscopy, and cryo-electron microscopy to determine the location of each atom relative to each other in the molecule. They then deposit this information, which is then annotated and publicly released into the archive by the wwPDB. Results can be viewed as 3-D images or models.

  12. Solar heating system at Security State Bank, Starkville, Mississippi. Final report

    SciTech Connect (OSTI)

    None

    1980-08-01T23:59:59.000Z

    Information is provided on the Solar Energy Heating System (airtype) installed at the branch bank building, northwest corner of Highway 12 and Spring Street, Starkville, Mississippi. This installation was completed in June, 1979. The 312 square feet of Solaron flat plate air collectors provide for 788 square feet of space heating, an estimated 55 percent of the heating load. Solar heated air is distributed to the 96 cubic foot steel cylinder, which contains two inch diameter rocks. An air handler unit moves the air over the collector and into the steel cylinder. Four motorized dampers and two gravity dampers are also part of the system. A Solaron controller which has sensors located at the collectors, rock storage, and at the return air, automatically controls the system. Auxiliary heating energy is provided by electric resistance duct heaters. This project is part of the US Department of Energy's Solar Demonstration Program with the government sharing $14,201 of the $17,498 solar energy system installation cost. This system was acceptance tested February, 1980, and the demonstration period ends in 1985.

  13. Neutronic analysis of the 1D and 1E banks reflux detection system

    SciTech Connect (OSTI)

    Blanchard, A.

    1999-12-21T23:59:59.000Z

    Two H Canyon neutron monitoring systems for early detection of postulated abnormal reflux conditions in the Second Uranium Cycle 1E and 1D Mixer-Settle Banks have been designed and built. Monte Carlo neutron transport simulations using the general purpose, general geometry, n-particle MCNP code have been performed to model expected response of the monitoring systems to varying conditions.The confirmatory studies documented herein conclude that the 1E and 1D neutron monitoring systems are able to achieve adequate neutron count rates for various neutron source and detector configurations, thereby eliminating excessive integration count time. Neutron count rate sensitivity studies are also performed. Conversely, the transport studies concluded that the neutron count rates are statistically insensitive to nitric acid content in the aqueous region and to the transition region length. These studies conclude that the 1E and 1D neutron monitoring systems are able to predict the postulated reflux conditions for all examined perturbations in the neutron source and detector configurations. In the cases examined, the relative change in the neutron count rates due to postulated transitions from normal {sup 235}U concentration levels to reflux levels remain satisfactory detectable.

  14. Pumping characteristics of chopped sorghum slurries

    E-Print Network [OSTI]

    Ou, Shichuan

    1986-01-01T23:59:59.000Z

    than for water. 15 Staley et al. (1971) initiated a series of on-site pumping tests to assess the validity of published results using short pipe length to longer runs and studied the influence of dilution on pressure drops and pumping... Losses in Pipe Fittings Static Head 20 22 23 Total System Head 23 III DESIGN OF THE PUMP TESTING SYSTEM Main System Components 25 25 vii TABLE OF CONTENTS (CONTINUED) CHAPTER Page Storage Tank Hydraulic Motor Flow Control Valve Volumetric...

  15. GIS-BASED MONITORING SYSTEMS Bres Csaba Zoltn

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    system' The main scope of activity is focused now on the recultivation of slurry reservoirs and the spoil1-30Jul2014 #12;49 Figure 2 (Spoil-banks and slurry reservoirs near Pécs, Hungary) Problems emerged as in the South Hungarian region, Pécs area, mining (coal-mining) intensely appeared since the 19th century

  16. Prospects for the Gasification of Refuse-Derived Fuel (RDF)

    E-Print Network [OSTI]

    Woodruff, K. L.; Guard, R. F. W.

    1983-01-01T23:59:59.000Z

    Fluidized-bed gasification of wood waste is now a commercially proven technology. An Omnifuel gasifier in Hearst, Ontario, has been in operation since early 1981. It produces a low-BTU gas which is used to displace natural gas in existing boilers...

  17. Prospects for the Gasification of Refuse-Derived Fuel (RDF) 

    E-Print Network [OSTI]

    Woodruff, K. L.; Guard, R. F. W.

    1983-01-01T23:59:59.000Z

    Fluidized-bed gasification of wood waste is now a commercially proven technology. An Omnifuel gasifier in Hearst, Ontario, has been in operation since early 1981. It produces a low-BTU gas which is used to displace natural gas in existing boilers...

  18. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt051tifeinberg2011...

  19. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. tiarravt051feinberg2010...

  20. Large Steam Generating Units for the Combustion of Refuse

    E-Print Network [OSTI]

    Adams, P. J.; Robinson, C. C.

    1981-01-01T23:59:59.000Z

    Many by-products of our economy are considered 'waste' and are disposed of as landfill or by incineration. A shortage of landfill sites and increasingly higher fuel prices have stimulated interests in the conversion of burnable waste products...

  1. Large Steam Generating Units for the Combustion of Refuse

    E-Print Network [OSTI]

    Adams, P. J.; Robinson, C. C.

    "Many by-products of our economy are considered ""waste"" and are disposed of as landfill or by incineration. A shortage of landfill sites and increasingly higher fuel prices have stimulated interests in the conversion of burnable waste products...

  2. Fleet DNA Project Data Summary Report for Refuse Trucks

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.New MexicoFinancingProof ofofDownloadsNewFlat-PlateFleet2562 16 30

  3. Alternative Fuels Data Center: Smithtown Selects CNG to Cut Refuse

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP RelatedCellulaseFuelsConversions toSchool Bus

  4. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in Many Devils Wash, Shiprock,Department of Energy 2 DOE Hydrogen and

  5. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in Many Devils Wash, Shiprock,Department of Energy 2 DOE Hydrogen

  6. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in Many Devils Wash, Shiprock,Department of Energy 2 DOE

  7. Commerce Refuse To Energy Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew York:Governor s(RedirectedColusaCommack, NewEnergy,

  8. SIMULATION RESULTS OF RUNNING THE AGS MMPS, BY STORING ENERGY IN CAPACITOR BANKS.

    SciTech Connect (OSTI)

    MARNERIS, I.

    2006-09-01T23:59:59.000Z

    The Brookhaven AGS is a strong focusing accelerator which is used to accelerate protons and various heavy ion species to equivalent maximum proton energy of 29 GeV. The AGS Main Magnet Power Supply (MMPS) is a thyristor control supply rated at 5500 Amps, +/-go00 Volts. The peak magnet power is 49.5 Mwatts. The power supply is fed from a motor/generator manufactured by Siemens. The motor is rated at 9 MW, input voltage 3 phase 13.8 KV 60 Hz. The generator is rated at 50 MVA its output voltage is 3 phase 7500 Volts. Thus the peak power requirements come from the stored energy in the rotor of the motor/generator. The rotor changes speed by about +/-2.5% of its nominal speed of 1200 Revolutions per Minute. The reason the power supply is powered by the Generator is that the local power company (LIPA) can not sustain power swings of +/- 50 MW in 0.5 sec if the power supply were to be interfaced directly with the AC lines. The Motor Generator is about 45 years old and Siemens is not manufacturing similar machines in the future. As a result we are looking at different ways of storing energy and being able to utilize it for our application. This paper will present simulations of a power supply where energy is stored in capacitor banks. The simulation program used is called PSIM Version 6.1. The control system of the power supply will also be presented. The average power from LIPA into the power supply will be kept constant during the pulsing of the magnets at +/-50 MW. The reactive power will also be kept constant below 1.5 MVAR. Waveforms will be presented.

  9. Environmental Assessment and Finding of No Significant Impact: Implementation of the Wetland Mitigation Bank Program at the Savannah River Site

    SciTech Connect (OSTI)

    N /A

    1999-04-28T23:59:59.000Z

    The Department of Energy (DOE) has prepared an environmental assessment (EA) (DOE/EA-1205) for the proposed implementation of a wetland mitigation bank program at the Savannah River Site (SRS), located near Aiken, South Carolina. Based on the analyses in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). Therefore, the preparation of an environmental impact statement (EIS) is not required, and DOE is issuing this Finding of No Significant Impact (FONSI) and Floodplain Statement of Findings.

  10. Banks Lake Fishery Evaluation Project Annual Report : Fiscal Year 2001 (September 1, 2001 to August 31, 2002).

    SciTech Connect (OSTI)

    Polacek, Matt; Knuttgen, Kamia; Baldwin, Casey; Woller, Heather

    2003-03-01T23:59:59.000Z

    The Washington Department of Fish and Wildlife implemented the Banks Lake Fishery Evaluation Project (BLFEP) in September 2001 with funds from the Bonneville Power Administration. The first year of the BLFEP was used to gather historic information, establish methods and protocols, collect limnology data, and conduct the first seasonal fish surveys. Water quality parameters were collected monthly from February to May and bi-monthly from June to August. Banks Lake water temperatures began to increase in April and stratification was apparent by June at all 3 limnology collection sites. By late August, the thermocline had dropped to nearly 20 m deep, with 19-20 C temperatures throughout the epilimnion. Dissolved oxygen levels were generally above 10 mg/L until mid summer when dissolved oxygen dropped near or below 5 mg/L below 20-m deep. Secchi depths ranged from 3-10 m and varied by location and date. Nearshore and offshore fish surveys were conducted in May and July using boat electrofishing, fyke net, gill net, and hydroacoustic surveys. Smallmouth bass Micropterous dolomieui (24%) and lake whitefish Coregonus clupeaformis (20%) dominated the nearshore species composition in May; however, by July yellow perch Perca flavescens (26%) were the second most common species to smallmouth bass (30%). Lake whitefish dominated the offshore catch during May (72%) and July (90%). The May hydroacoustic survey revealed highest densities of fish in the upper 1/3 of the water column in the mid- to northern sections of the reservoir near Steamboat Rock. In the future, data from seasonal surveys will be used to identify potential factors that may limit the production and harvest of kokanee, rainbow trout, and various spiny-rayed fishes in Banks Lake. The limiting factors that will be examined consist of: abiotic factors including water temperature, dissolved oxygen levels, habitat, exploitation and entrainment; and biotic factors including food limitation and predation. The BLFEP will also evaluate the success of several rearing and stocking strategies for hatchery kokanee in Banks Lake.

  11. It is well known that the West Texas banking community and the Area of Finance in the Rawls College of Business enjoy a long-standing and fruitful relationship. Undergraduate and graduate finance majors

    E-Print Network [OSTI]

    Westfall, Peter H.

    It is well known that the West Texas banking community and the Area of Finance in the Rawls College of Business enjoy a long-standing and fruitful relationship. Undergraduate and graduate finance majors from this relationship, the Institute for Banking and Financial Studies, in conjunction with the Area of Finance

  12. BROOKINGS-ROCKEFELLER Project on State and Metropolitan Innovation State Clean Energy Finance Banks: New Investment Facilities for Clean Energy Deployment

    E-Print Network [OSTI]

    Ken Berlin; Reed Hundt; Mark Muro; Devashree Saha

    “?The creation of state clean energy banks represents another arena for state leadership on alternative energy finance.” Summary Propelled by private entrepreneurship, technology gains, and public support, clean energy and energy efficiency solutions began to proliferate in recent years. However, federal policy gridlock and state budget challenges are now jeopardizing the availability of government finance, exacerbating the serious finance challenges that impede the large-scale deployment of low-carbon energy solutions. Fortunately a number of states are now exploring a variety of ways to leverage scarce public resources with sophisticated banking and finance mechanisms. Epitomized by Connecticut’s

  13. Species composition and population levels of scleractinean corals within the Diploria-Montastrea-Porites Zone of the East Flower Garden Bank, northwest Gulf of Mexico

    E-Print Network [OSTI]

    Viada, Stephen Tomas

    1980-01-01T23:59:59.000Z

    Levels of Scleractinean Corals Within the Diploria-Montastrea-Porites Zone of the East Flower Garden Bank, Northwest Gulf of Mexico. (December 1980) Stephen Tomas Viada, B. S. , Texas ASM University Chairman of Advisory Committee: Dr. Thomas J. Bright... Population levels of scleractinean corals at "top-reef" and "reef edge" sites within the Di ploria-Montastrea-Pori tes Zone of the East Flower Garden Bank were determined at two sites by means of a series of 34 stratified random photographic line transects...

  14. Monitoring bank erosion at the Locke Island Archaeological National Register District: Summary of 1996/1997 field activities

    SciTech Connect (OSTI)

    Nickens, P.R. [ed.] [ed.; Bjornstad, B.N.; Nickens, P.R.; Cadoret, N.A.; Wright, M.K.

    1998-08-01T23:59:59.000Z

    Locke Island is located in the Columbia River in south-central Washington. The US Department of Energy (DOE) owns Locke Island as part of its Hanford Site. In the 1960s and 1970s, as a result of intensive irrigation developments on the inland shoreline to the east of the island, the White Bluffs, which form the eastern boundary of the Columbia River channel in this area, began to show geological failures as excess irrigation water seeped out along the bluffs. One of the largest such failures, known as the Locke Island Landslide, is located just east of Locke Island. By the early 1980s, this landslide mass had moved westward into the river channel toward the island and was diverting the current at the island`s eastern perimeter. Erosion of the bank in the center of the island accelerated, threatening the cultural resources. By the early 1990s, the erosion had exposed cultural features and artifacts along the bank, leading to the beginning of intermittent monitoring of the cutbank. In 1994, DOE initiated more scheduled, systematic monitoring of island erosion to better understand the physical processes involved as well as mitigate ongoing loss of the archaeological record.

  15. St. Paul -West Bank District Heating-to-Cooling Conversion Plan Check the date your building's cooling system is scheduled to be on.

    E-Print Network [OSTI]

    Webb, Peter

    's cooling system is scheduled to be on. Status Color Code: On In Progress Not started Building Name BuildingSt. Paul - West Bank District Heating-to-Cooling Conversion Plan Check the date your building # Date Central Cooling On Status Date Window A/C Units installed Status 19th ave ramp 217 N/A N/A N/A 21

  16. East Bank District Heating-to-Cooling Conversion Plan Check the date your building's cooling system is scheduled to be on.

    E-Print Network [OSTI]

    Webb, Peter

    East Bank District Heating-to-Cooling Conversion Plan Check the date your building's cooling system is scheduled to be on. Status Color Code: On In Progress Not started Building Name Building # Date Central Cooling On Status Date Window A/C Units installed Status 1425 University Ave. 127 1901 University Ave SE

  17. Remaining FY13 Compensatory (COMP) Bank Balances in ITAMS This is to remind you that compensatory (COMP) hours may not be carried over from

    E-Print Network [OSTI]

    Almor, Amit

    Remaining FY13 Compensatory (COMP) Bank Balances in ITAMS This is to remind you that compensatory week that Fiscal Year 2013 COMP hours can be used via ITAMS. Approved timesheets for the June 9-15th University policy, hours may not be recorded in units of less than one-quarter hour. ITAMS only allows work

  18. Remaining FY14 Compensatory (COMP) Bank Balances in ITAMS This is to remind you that compensatory (COMP) hours may not be carried over from

    E-Print Network [OSTI]

    Almor, Amit

    Remaining FY14 Compensatory (COMP) Bank Balances in ITAMS This is to remind you that compensatory week that Fiscal Year 2014 COMP hours can be used via ITAMS. Approved timesheets for the June 8-14th that per University policy, hours may not be recorded in units of less than one-quarter hour. ITAMS only

  19. Green Bank Telescope observations of the water masers of NGC 3079: accretion disk magnetic field and maser scintillation

    E-Print Network [OSTI]

    W. H. T. Vlemmings; H. E. Bignall; P. J. Diamond

    2006-10-30T23:59:59.000Z

    We present observations of the 22 GHz water megamasers in the circumnuclear disk of NGC 3079 obtained with the Green Bank Telescope. The data are analyzed for circular polarization due to the Zeeman-induced splitting of the water maser lines. No circular polarization is detected and we derive a 1 sigma upper limit of 11 mG for the toroidal magnetic field at ~0.64 pc from the central black hole. This is the tightest upper limit for the magnetic field around a black hole to date. We use the magnetic field limit to derive an estimate of the mass accretion onto the central black hole. In addition to the polarimetric results, we present an observation of rapid variability in the maser lines, which we explain as weak interstellar scintillation. From the scintillation parameters, we estimate an intrinsic size of the mostly saturated maser features of ~12 microarcseconds. This is consistent with models assuming a thick, clumpy accretion disk.

  20. Seed rain and seed bank of third- and fifth-order streams on the western slope of the cascade range. Forest Service research paper

    SciTech Connect (OSTI)

    Harmon, J.M.; Franklin, J.F.

    1995-04-01T23:59:59.000Z

    The authors compared the composition and density of the on-site vegetation, seed bank, and seed rain of three geomorphic and successional surfaces along third- and fifth- order streams on the western slope of the Cascade Range in Oregon. The on-site vegetation generally was dominated by tree species, the seed bank by herb species, and the seed rain by tree and herb species. Seed rain density generally correspond to the successional stage of the geomorphic surface and frequency of site disturbance, with the youngest and least vegetatively stable geomorphic surfaces having the highest density of trapped viable seeds. The highest density and greatest species richness of seed germinants were found on the intermediate-aged geomorphic surfaces, which had moderate levels of disturbance.