Sample records for lean burn engines

  1. Reduction of Nitrogen Oxide Emissions for lean Burn Engine Technology

    SciTech Connect (OSTI)

    McGill, R.N.

    1998-08-04T23:59:59.000Z

    Lean-burn engines offer the potential for significant fuel economy improvements in cars and trucks, perhaps the next great breakthrough in automotive technology that will enable greater savings in imported petroleum. The development of lean-burn engines, however, has been an elusive goal among automakers because of the emissions challenges associated with lead-burn engine technology. Presently, cars operate with sophisticated emissions control systems that require the engine's air-fuel ratio to be carefully controlled around the stoichiometric point (chemically correct mixture). Catalysts in these systems are called "three-way" catalysts because they can reduce hydrocarbon, carbon monoxide, and nitrogen oxide emissions simultaneously, but only because of the tight control of the air-fuel ratio. The purpose of this cooperative effort is to develop advanced catalyst systems, materials, and necessary engine control algorithms for reducing NOX emissions in oxygen-rich automotive exhaust (as with lean-burn engine technology) to meet current and near-future mandated Clean Air Act standards. These developments will represent a breakthrough in both emission control technology and automobile efficiency. The total project is a joint effort among five national laboratories, together with US CAR. The role of Lockheed-Martin Energy Systems in the total project is two fold: characterization of catalyst performance through laboratory evaluations from bench-scale flow reactor tests to engine laboratory tests of full-scale prototype catalysts, and microstructural characterization of catalyst material before and after test stand and/or engine testing.

  2. Exhaust gas purification system for lean burn engine

    DOE Patents [OSTI]

    Haines, Leland Milburn (Northville, MI)

    2002-02-19T23:59:59.000Z

    An exhaust gas purification system for a lean burn engine includes a thermal mass unit and a NO.sub.x conversion catalyst unit downstream of the thermal mass unit. The NO.sub.x conversion catalyst unit includes at least one catalyst section. Each catalyst section includes a catalytic layer for converting NO.sub.x coupled to a heat exchanger. The heat exchanger portion of the catalyst section acts to maintain the catalytic layer substantially at a desired temperature and cools the exhaust gas flowing from the catalytic layer into the next catalytic section in the series. In a further aspect of the invention, the exhaust gas purification system includes a dual length exhaust pipe upstream of the NO.sub.x conversion catalyst unit. The dual length exhaust pipe includes a second heat exchanger which functions to maintain the temperature of the exhaust gas flowing into the thermal mass downstream near a desired average temperature.

  3. Method and apparatus for controlling fuel/air mixture in a lean burn engine

    DOE Patents [OSTI]

    Kubesh, John Thomas (San Antonio, TX); Dodge, Lee Gene (San Antonio, TX); Podnar, Daniel James (San Antonio, TX)

    1998-04-07T23:59:59.000Z

    The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As specific humidity of air supplied to the lean burn engine increases, the oxygen concentration of exhaust gas discharged by the engine for a given equivalence ratio will decrease. Closed loop fuel control systems typically attempt to maintain a constant exhaust gas oxygen concentration. Therefore, the decrease in the exhaust gas oxygen concentration resulting from increased specific humidity will often be improperly attributed to an excessive supply of fuel and the control system will incorrectly reduce the amount of fuel supplied to the engine. Also, the minimum fuel/air equivalence ratio for a lean burn engine to avoid misfiring will increase as specific humidity increases. A relative humidity sensor to allow the control system to provide a more enriched fuel/air mixture at high specific humidity levels. The level of specific humidity may be used to compensate an output signal from a universal exhaust gas oxygen sensor for changing oxygen concentrations at a desired equivalence ratio due to variation in specific humidity specific humidity. As a result, the control system will maintain the desired efficiency, low exhaust emissions and power level for the associated lean burn engine regardless of the specific humidity level of intake air supplied to the lean burn engine.

  4. Selective NOx Recirculation for Stationary Lean-Burn Natural Gas Engines

    SciTech Connect (OSTI)

    Nigel N. Clark

    2006-12-31T23:59:59.000Z

    Nitric oxide (NO) and nitrogen dioxide (NO2) generated by internal combustion (IC) engines are implicated in adverse environmental and health effects. Even though lean-burn natural gas engines have traditionally emitted lower oxides of nitrogen (NOx) emissions compared to their diesel counterparts, natural gas engines are being further challenged to reduce NOx emissions to 0.1 g/bhp-hr. The Selective NOx Recirculation (SNR) approach for NOx reduction involves cooling the engine exhaust gas and then adsorbing the NOx from the exhaust stream, followed by the periodic desorption of NOx. By sending the desorbed NOx back into the intake and through the engine, a percentage of the NOx can be decomposed during the combustion process. SNR technology has the support of the Department of Energy (DOE), under the Advanced Reciprocating Engine Systems (ARES) program to reduce NOx emissions to under 0.1 g/bhp-hr from stationary natural gas engines by 2010. The NO decomposition phenomenon was studied using two Cummins L10G natural gas fueled spark-ignited (SI) engines in three experimental campaigns. It was observed that the air/fuel ratio ({lambda}), injected NO quantity, added exhaust gas recirculation (EGR) percentage, and engine operating points affected NOx decomposition rates within the engine. Chemical kinetic model predictions using the software package CHEMKIN were performed to relate the experimental data with established rate and equilibrium models. The model was used to predict NO decomposition during lean-burn, stoichiometric burn, and slightly rich-burn cases with added EGR. NOx decomposition rates were estimated from the model to be from 35 to 42% for the lean-burn cases and from 50 to 70% for the rich-burn cases. The modeling results provided an insight as to how to maximize NOx decomposition rates for the experimental engine. Results from this experiment along with chemical kinetic modeling solutions prompted the investigation of rich-burn operating conditions, with added EGR to prevent preignition. It was observed that the relative air/fuel ratio, injected NO quantity, added EGR fraction, and engine operating points affected the NO decomposition rates. While operating under these modified conditions, the highest NO decomposition rate of 92% was observed. In-cylinder pressure data gathered during the experiments showed minimum deviation from peak pressure as a result of NO injections into the engine. A NOx adsorption system, from Sorbent Technologies, Inc., was integrated with the Cummins engine, comprised a NOx adsorbent chamber, heat exchanger, demister, and a hot air blower. Data were gathered to show the possibility of NOx adsorption from the engine exhaust, and desorption of NOx from the sorbent material. In order to quantify the NOx adsorption/desorption characteristics of the sorbent material, a benchtop adsorption system was constructed. The temperature of this apparatus was controlled while data were gathered on the characteristics of the sorbent material for development of a system model. A simplified linear driving force model was developed to predict NOx adsorption into the sorbent material as cooled exhaust passed over fresh sorbent material. A mass heat transfer analysis was conducted to analyze the possibility of using hot exhaust gas for the desorption process. It was found in the adsorption studies, and through literature review, that NO adsorption was poor when the carrier gas was nitrogen, but that NO in the presence of oxygen was adsorbed at levels exceeding 1% by mass of the sorbent. From the three experimental campaigns, chemical kinetic modeling analysis, and the scaled benchtop NOx adsorption system, an overall SNR system model was developed. An economic analysis was completed, and showed that the system was impractical in cost for small engines, but that economies of scale favored the technology.

  5. Combustion optimization in a hydrogen-enhanced lean burn SI engine

    E-Print Network [OSTI]

    Goldwitz, Joshua A. (Joshua Arlen), 1980-

    2004-01-01T23:59:59.000Z

    Lean operation of spark ignition (SI) automotive engines offers attractive performance incentives. Lowered combustion temperatures inhibit NO[sub]x pollutant formation while reduced manifold throttling minimizes pumping ...

  6. Predicting the behavior of a lean-burn hydrogen-enhanced engine concept

    E-Print Network [OSTI]

    Ivanic, Žiga, 1978-

    2004-01-01T23:59:59.000Z

    (cont.) Lean operation of a spark ignition (SI) internal combustion engine (ICE) offers attractive performance incentives. Lowered combustion temperatures inhibit formation of nitrogen oxides (NOx), while reduced intake ...

  7. Vehicle Technologies Office 2013 Merit Review: A University Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines

    Broader source: Energy.gov [DOE]

    A presentation given by the University of Michigan at the 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting about a university consortium to research efficient and clean high-pressure lean burn engines.

  8. Knock behavior of a lean-burn hydrogen-enhanced engine concept

    E-Print Network [OSTI]

    Topinka, Jennifer A. (Jennifer Ann), 1977-

    2003-01-01T23:59:59.000Z

    Experiments to identify the knock trends of lean gasoline-air mixtures, and such mixtures enhanced with hydrogen (H2) and carbon monoxide (CO), were performed on a single-cylinder research engine with boosting capability. ...

  9. Selective NOx Recirculation for Stationary Lean-Burn Natural Gas Engines

    SciTech Connect (OSTI)

    Nigel Clark; Gregory Thompson; Richard Atkinson; Richard Turton; Chamila Tissera; Emre Tatli; Andy Zimmerman

    2005-12-28T23:59:59.000Z

    Selective NOx Recirculation (SNR) involves cooling the engine exhaust gas and then adsorbing the oxides of nitrogen (NOx) from the exhaust stream, followed by the periodic desorption of NOx. By returning the desorbed, concentrated NOx into the engine intake and through the combustion chamber, a percentage of the NOx is decomposed during the combustion process. An initial study of NOx decomposition during lean-burn combustion was concluded in 2004 using a 1993 Cummins L10G 240hp natural gas engine. It was observed that the air/fuel ratio, injected NO (nitric oxide) quantity and engine operating points affected NOx decomposition rates of the engine. Chemical kinetic modeling results were also used to determine optimum NOx decomposition operating points and were published in the 2004 annual report. A NOx decomposition rate of 27% was measured from this engine under lean-burn conditions while the software model predicted between 35-42% NOx decomposition for similar conditions. A later technology 1998 Cummins L10G 280hp natural gas engine was procured with the assistance of Cummins Inc. to replace the previous engine used for 2005 experimental research. The new engine was equipped with an electronic fuel management system with closed-loop control that provided a more stable air/fuel ratio control and improved the repeatability of the tests. The engine was instrumented with an in-cylinder pressure measurement system and electronic controls, and was adapted to operate over a range of air/fuel ratios. The engine was connected to a newly commissioned 300hp alternating current (AC) motoring dynamometer. The second experimental campaign was performed to acquire both stoichiometric and slightly rich (0.97 lambda ratio) burn NOx decomposition rates. Effects of engine load and speed on decomposition were quantified, but Exhaust Gas Recirculation (EGR) was not varied independently. Decomposition rates of up to 92% were demonstrated. Following recommendations at the 2004 ARES peer review meeting at Argonne National Laboratories, in-cylinder pressure was measured to calculate engine indicated mean effective pressure (IMEP) changes due to NOx injections and EGR variations, and to observe conditions in the cylinder. The third experimental campaign gathered NOx decomposition data at 800, 1200 and 1800 rpm. EGR was added via an external loop, with EGR ranging from zero to the point of misfire. The air/fuel ratio was set at both stoichiometric and slightly rich conditions, and NOx decomposition rates were calculated for each set of runs. Modifications were made to the engine exhaust manifold to record individual exhaust temperatures. The three experimental campaigns have provided the data needed for a comprehensive model of NOx decomposition during the combustion process, and data have confirmed that there was no significant impact of injected NO on in-cylinder pressure. The NOx adsorption system provided by Sorbent Technologies Corp. (Twinsburg, OH), comprised a NOx adsorber, heat exchanger and a demister. These components were connected to the engine, and data were gathered to show both the adsorption of NOx from the engine, and desorption of NOx from the carbon-based sorbent material back into the engine intake, using a heated air stream. In order to quantify the NOx adsorption/desorption characteristics of the sorbent material, a bench top adsorption system was constructed and instrumented with thermocouples and the system output was fed into a NOx analyzer. The temperature of this apparatus was controlled while gathering data on the characteristics of the sorbent material. These data were required for development of a system model. Preliminary data were gathered in 2005, and will continue in early 2006. To assess the economic benefits of the proposed SNR technology the WVU research team has been joined in the last quarter by Dr Richard Turton (WVU-Chemical Engineering), who is modeling, sizing and costing the major components. The tasks will address modeling and preliminary design of the heat exchanger, demister and NOx sorbent chamber s

  10. The effects of spark ignition parameters on the lean burn limit of natural gas combustion in an internal combustion engine

    E-Print Network [OSTI]

    Chlubiski, Vincent Daniel

    1997-01-01T23:59:59.000Z

    A full factorial experiment was conducted to determine the effects of internal combustion engine ignition parameters on the air-fuel ratio (A/F) lean limit of combustion with compressed natural gas (CNG). Spark electrical characteristics (voltage...

  11. Cellular burning in lean premixed turbulent hydrogen-air flames: coupling experimental and

    E-Print Network [OSTI]

    Cellular burning in lean premixed turbulent hydrogen-air flames: coupling experimental. Beckner1, M. J. Lijewski1 1 Center for Computational Science and Engineering, Lawrence Berkeley National for burning the fuel-lean mixtures of hydrogen or hydrogen-rich syngas fuels obtained from the gasification

  12. Emissions Control for Lean Gasoline Engines

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

    Reduction Lean Gasoline SI Direct Injection Engine + TWC + LNT + SCR NH 3 LNT NH 3 Optimization HC Slip Control Lean Gasoline SI Direct Injection Engine + TWC + SCR NH 3 TWC NH 3...

  13. Lean NOx Trap Catalysis for Lean Natural Gas Engine Applications

    SciTech Connect (OSTI)

    Parks, II, James E [ORNL; Storey, John Morse [ORNL; Theiss, Timothy J [ORNL; Ponnusamy, Senthil [ORNL; Ferguson, Harley Douglas [ORNL; Williams, Aaron M [ORNL; Tassitano, James B [ORNL

    2007-09-01T23:59:59.000Z

    Distributed energy is an approach for meeting energy needs that has several advantages. Distributed energy improves energy security during natural disasters or terrorist actions, improves transmission grid reliability by reducing grid load, and enhances power quality through voltage support and reactive power. In addition, distributed energy can be efficient since transmission losses are minimized. One prime mover for distributed energy is the natural gas reciprocating engine generator set. Natural gas reciprocating engines are flexible and scalable solutions for many distributed energy needs. The engines can be run continuously or occasionally as peak demand requires, and their operation and maintenance is straightforward. Furthermore, system efficiencies can be maximized when natural gas reciprocating engines are combined with thermal energy recovery for cooling, heating, and power applications. Expansion of natural gas reciprocating engines for distributed energy is dependent on several factors, but two prominent factors are efficiency and emissions. Efficiencies must be high enough to enable low operating costs, and emissions must be low enough to permit significant operation hours, especially in non-attainment areas where emissions are stringently regulated. To address these issues the U.S. Department of Energy and the California Energy Commission launched research and development programs called Advanced Reciprocating Engine Systems (ARES) and Advanced Reciprocating Internal Combustion Engines (ARICE), respectively. Fuel efficiency and low emissions are two primary goals of these programs. The work presented here was funded by the ARES program and, thus, addresses the ARES 2010 goals of 50% thermal efficiency (fuel efficiency) and <0.1 g/bhp-hr emissions of oxides of nitrogen (NOx). A summary of the goals for the ARES program is given in Table 1-1. ARICE 2007 goals are 45% thermal efficiency and <0.015 g/bhp-hr NOx. Several approaches for improving the efficiency and emissions of natural gas reciprocating engines are being pursued. Approaches include: stoichiometric engine operation with exhaust gas recirculation and three-way catalysis, advanced combustion modes such as homogeneous charge compression ignition, and extension of the lean combustion limit with advanced ignition concepts and/or hydrogen mixing. The research presented here addresses the technical approach of combining efficient lean spark-ignited natural gas combustion with low emissions obtained from a lean NOx trap catalyst aftertreatment system. This approach can be applied to current lean engine technology or advanced lean engines that may result from related efforts in lean limit extension. Furthermore, the lean NOx trap technology has synergy with hydrogen-assisted lean limit extension since hydrogen is produced from natural gas during the lean NOx trap catalyst system process. The approach is also applicable to other lean engines such as diesel engines, natural gas turbines, and lean gasoline engines; other research activities have focused on those applications. Some commercialization of the technology has occurred for automotive applications (both diesel and lean gasoline engine vehicles) and natural gas turbines for stationary power. The research here specifically addresses barriers to commercialization of the technology for large lean natural gas reciprocating engines for stationary power. The report presented here is a comprehensive collection of research conducted by Oak Ridge National Laboratory (ORNL) on lean NOx trap catalysis for lean natural gas reciprocating engines. The research was performed in the Department of Energy's ARES program from 2003 to 2007 and covers several aspects of the technology. All studies were conducted at ORNL on a Cummins C8.3G+ natural gas engine chosen based on industry input to simulate large lean natural gas engines. Specific technical areas addressed by the research include: NOx reduction efficiency, partial oxidation and reforming chemistry, and the effects of sulfur poisons on the partial oxidation

  14. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    Bremer, Peer-Timo

    2010-01-01T23:59:59.000Z

    structures in lean premixed hydrogen ?ames. Combustion andStructures in Lean Premixed Hydrogen Flames P. -T. Bremersimulations of lean hydrogen ?ames subject to different

  15. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    component of a clean-coal power plant utilizing hydrogen extracted from coal gasification. Lean premixed

  16. Lean transformation and relocation of jet engine assembly operations

    E-Print Network [OSTI]

    Hale, Stephen Andrew

    2011-01-01T23:59:59.000Z

    As part of continuing lean transformation efforts at Pratt & Whitney, the Middletown Engine Center has turned its focus on the GP7000 turbofan engine as a target for lean implementation. Projected increases in GP7000 ...

  17. Vehicle Technologies Office Merit Review 2015: Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and vehicle technologies office annual merit review and peer evaluation meeting about advanced lean-burn...

  18. Catalysts For Lean Burn Engine Exhaust Abatement

    DOE Patents [OSTI]

    Ott, Kevin C. (Los Alamos, NM); Clark, Noline C. (Jemez Springs, NM); Paffett, Mark T. (Los Alamos, NM)

    2004-04-06T23:59:59.000Z

    The present invention provides a process for catalytically reducing nitrogen oxides in an exhaust gas stream containing nitrogen oxides and a reductant material by contacting the gas stream under conditions effective to catalytically reduce the nitrogen oxides with a catalyst comprising a aluminum-silicate type material and a minor amount of a metal, the catalyst characterized as having sufficient catalytic activity so as to reduce the nitrogen oxides by at least 60 percent under temperatures within the range of from about 200.degree. C. to about 400.degree. C.

  19. Catalysts for lean burn engine exhaust abatement

    DOE Patents [OSTI]

    Ott, Kevin C. (Los Alamos, NM); Clark, Noline C. (Jemez Springs, NM); Paffett, Mark T. (Los Alamos, NM)

    2003-01-01T23:59:59.000Z

    The present invention provides a process for catalytically reducing nitrogen oxides in an exhaust gas stream containing nitrogen oxides and a reductant material by contacting the gas stream under conditions effective to catalytically reduce the nitrogen oxides with a catalyst comprising a aluminum-silicate type material and a minor amount of a metal, the catalyst characterized as having sufficient catalytic activity so as to reduce the nitrogen oxides by at least 60 percent under temperatures within the range of from about 200.degree. C. to about 400.degree. C.

  20. Vortex combustor for low NOX emissions when burning lean premixed high hydrogen content fuel

    DOE Patents [OSTI]

    Steele, Robert C; Edmonds, Ryan G; Williams, Joseph T; Baldwin, Stephen P

    2012-11-20T23:59:59.000Z

    A trapped vortex combustor. The trapped vortex combustor is configured for receiving a lean premixed gaseous fuel and oxidant stream, where the fuel includes hydrogen gas. The trapped vortex combustor is configured to receive the lean premixed fuel and oxidant stream at a velocity which significantly exceeds combustion flame speed in a selected lean premixed fuel and oxidant mixture. The combustor is configured to operate at relatively high bulk fluid velocities while maintaining stable combustion, and low NOx emissions. The combustor is useful in gas turbines in a process of burning synfuels, as it offers the opportunity to avoid use of diluent gas to reduce combustion temperatures. The combustor also offers the possibility of avoiding the use of selected catalytic reaction units for removal of oxides of nitrogen from combustion gases exiting a gas turbine.

  1. Vortex combustor for low NOx emissions when burning lean premixed high hydrogen content fuel

    DOE Patents [OSTI]

    Steele, Robert C. (Woodinville, WA); Edmonds, Ryan G. (Renton, WA); Williams, Joseph T. (Kirkland, WA); Baldwin, Stephen P. (Winchester, MA)

    2009-10-20T23:59:59.000Z

    A trapped vortex combustor. The trapped vortex combustor is configured for receiving a lean premixed gaseous fuel and oxidant stream, where the fuel includes hydrogen gas. The trapped vortex combustor is configured to receive the lean premixed fuel and oxidant stream at a velocity which significantly exceeds combustion flame speed in a selected lean premixed fuel and oxidant mixture. The combustor is configured to operate at relatively high bulk fluid velocities while maintaining stable combustion, and low NOx emissions. The combustor is useful in gas turbines in a process of burning synfuels, as it offers the opportunity to avoid use of diluent gas to reduce combustion temperatures. The combustor also offers the possibility of avoiding the use of selected catalytic reaction units for removal of oxides of nitrogen from combustion gases exiting a gas turbine.

  2. Utilizing Industrial Engineers to Implement "Lean Enterprise" at Company A

    E-Print Network [OSTI]

    Stein, Jean D'Ann

    2012-12-14T23:59:59.000Z

    in the implementation of continuous improvement and lean thinking. This skillset has recently allowed IEs to work outside their normal realm of manufacturing, and focus on areas more closely related to service organizations. At Company A, Industrial Engineers...

  3. Combustion lean limits fundamentals and their application to a SI hydrogen-enhanced engine concept

    E-Print Network [OSTI]

    Ayala, Ferran A. (Ferran Alberto), 1976-

    2006-01-01T23:59:59.000Z

    Operating an engine with excess air, under lean conditions, has significant benefits in terms of increased engine efficiency and reduced emissions. However, under high dilution levels, a lean limit is reached where combustion ...

  4. FUEL INTERCHANGEABILITY FOR LEAN PREMIXED COMBUSTION IN GAS TURBINE ENGINES

    SciTech Connect (OSTI)

    Don Ferguson; Geo. A. Richard; Doug Straub

    2008-06-13T23:59:59.000Z

    In response to environmental concerns of NOx emissions, gas turbine manufacturers have developed engines that operate under lean, pre-mixed fuel and air conditions. While this has proven to reduce NOx emissions by lowering peak flame temperatures, it is not without its limitations as engines utilizing this technology are more susceptible to combustion dynamics. Although dependent on a number of mechanisms, changes in fuel composition can alter the dynamic response of a given combustion system. This is of particular interest as increases in demand of domestic natural gas have fueled efforts to utilize alternatives such as coal derived syngas, imported liquefied natural gas and hydrogen or hydrogen augmented fuels. However, prior to changing the fuel supply end-users need to understand how their system will respond. A variety of historical parameters have been utilized to determine fuel interchangeability such as Wobbe and Weaver Indices, however these parameters were never optimized for today’s engines operating under lean pre-mixed combustion. This paper provides a discussion of currently available parameters to describe fuel interchangeability. Through the analysis of the dynamic response of a lab-scale Rijke tube combustor operating on various fuel blends, it is shown that commonly used indices are inadequate for describing combustion specific phenomena.

  5. Vehicle Technologies Office Merit Review 2014: Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced lean...

  6. Cycle-to-Cycle Fluctuations of Burned Fuel Mass in Spark Ignition Combustion Engines

    E-Print Network [OSTI]

    M. Wendeker; G. Litak; M. Krupa

    2003-12-28T23:59:59.000Z

    We examine a simple, fuel-air, model of combustion in spark ignition (si) engine with indirect injection. In our two fluid model, variations of fuel mass burned in cycle sequences appear due to stochastic fluctuations of a fuel feed amount. We have shown that a small amplitude of these fluctuations affects considerably the stability of a combustion process strongly depending on the quality of air-fulel mixture. The largest influence was found in the limit of a lean combustion. The possible effect of nonlinearities in the combustion process were also discussed.

  7. The Guide to Lean Enablers for Managing Engineering Programs

    E-Print Network [OSTI]

    Oehmen, Josef

    This document provides the findings of the Joint MIT?PMI?INCOSE Lean in Program Management Community of Practice that are based on a 1?year project executed during 2011 and 2012. The community was made up of selected subject ...

  8. Options for Burning LWR SNF in LIFE Engine

    SciTech Connect (OSTI)

    Farmer, J

    2008-09-09T23:59:59.000Z

    We have pursued two processes in parallel for the burning of LWR SNF in the LIFE engine: (1) solid fuel option and (2) liquid fuel option. Approaches with both are discussed. The assigned Topical Report on liquid fuels is attached.

  9. Selective Catalytic Reduction of Oxides of Nitrogen with Ethanol/Gasoline Blends over a Silver/Alumina Catalyst on Lean Gasoline Engine

    SciTech Connect (OSTI)

    Prikhodko, Vitaly Y [ORNL; Pihl, Josh A [ORNL; Toops, Todd J [ORNL; Thomas, John F [ORNL; Parks, II, James E [ORNL; West, Brian H [ORNL

    2015-01-01T23:59:59.000Z

    Ethanol is a very effective reductant of nitrogen oxides (NOX) over silver/alumina (Ag/Al2O3) catalysts in lean exhaust environment. With the widespread availability of ethanol/gasoline-blended fuel in the USA, lean gasoline engines equipped with an Ag/Al2O3 catalyst have the potential to deliver higher fuel economy than stoichiometric gasoline engines and to increase biofuel utilization while meeting exhaust emissions regulations. In this work a pre-commercial 2 wt% Ag/Al2O3 catalyst was evaluated on a 2.0-liter BMW lean burn gasoline direct injection engine for the selective catalytic reduction (SCR) of NOX with ethanol/gasoline blends. The ethanol/gasoline blends were delivered via in-pipe injection upstream of the Ag/Al2O3 catalyst with the engine operating under lean conditions. A number of engine conditions were chosen to provide a range of temperatures and space velocities for the catalyst performance evaluations. High NOX conversions were achieved with ethanol/gasoline blends containing at least 50% ethanol; however, higher C1/N ratio was needed to achieve greater than 90% NOX conversion, which also resulted in significant HC slip. Temperature and HC dosing were important in controlling selectivity to NH3 and N2O. At high temperatures, NH3 and N2O yields increased with increased HC dosing. At low temperatures, NH3 yield was very low, however, N2O levels became significant. The ability to generate NH3 under lean conditions has potential for application of a dual SCR approach (HC SCR + NH3 SCR) to reduce fuel consumption needed for NOX reduction and/or increased NOX conversion, which is discussed in this work.

  10. System Study of Rich Catalytic/Lean burn (RCL) Catalytic Combustion for Natural Gas and Coal-Derived Syngas Combustion Turbines

    SciTech Connect (OSTI)

    Shahrokh Etemad; Lance Smith; Kevin Burns

    2004-12-01T23:59:59.000Z

    Rich Catalytic/Lean burn (RCL{reg_sign}) technology has been successfully developed to provide improvement in Dry Low Emission gas turbine technology for coal derived syngas and natural gas delivering near zero NOx emissions, improved efficiency, extending component lifetime and the ability to have fuel flexibility. The present report shows substantial net cost saving using RCL{reg_sign} technology as compared to other technologies both for new and retrofit applications, thus eliminating the need for Selective Catalytic Reduction (SCR) in combined or simple cycle for Integrated Gasification Combined Cycle (IGCC) and natural gas fired combustion turbines.

  11. Autoignition behavior of lean mixtures: Chemical and thermodynamics effects

    SciTech Connect (OSTI)

    Ronney, P.D.; Shoda, M.; Waida, S.T. [Princeton Univ., NJ (United States). Dept. of Mechanical and Aerospace Engineering; Westbrook, C.K.; Pitz, W.J. [Lawrence Livermore National Lab., CA (United States)

    1992-01-15T23:59:59.000Z

    Knock characteristics of natural gas (NG), 89 octane unleaded gasoline, 2,2-dimethyl butane (22DMB), and methyl tert-butyl ether (MTBE) in stoichiometric and lean fuel-air mixtures were studied in a production 4-cylinder automotive engine. The Intake Temperature at the Knock Limit (ITKL) was different for each fuel but always higher in lean mixtures. Gasoline and 22DMB exhibited much greater increases in ITKL than MTBE and NG at lean conditions. Surprisingly, for lean mixtures 22DMB exhibited higher ITKL than MTBE and was almost as high as NG. Comparison with detailed numerical modelling was very favorable. Computations show that both differences in chemistry and end-gas temperature and pressure histories are responsible for these trends. This behavior is interpreted in terms of the Negative Temperature Coefficient behavior of hydrocarbon oxidation. The implication of these results for the specification of optimal fuels for lean-burn engine is discussed.

  12. Reductant Chemistry during LNT Regeneration for a Lean Gasoline...

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

    Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems Emissions Control for Lean Gasoline Engines Emissions Control for Lean Gasoline...

  13. Application of Hydrogen Assisted Lean Operation to Natural Gas-Fueled Reciprocating Engines (HALO)

    SciTech Connect (OSTI)

    Chad Smutzer

    2006-01-01T23:59:59.000Z

    Two key challenges facing Natural Gas Engines used for cogeneration purposes are spark plug life and high NOx emissions. Using Hydrogen Assisted Lean Operation (HALO), these two keys issues are simultaneously addressed. HALO operation, as demonstrated in this project, allows stable engine operation to be achieved at ultra-lean (relative air/fuel ratios of 2) conditions, which virtually eliminates NOx production. NOx values of 10 ppm (0.07 g/bhp-hr NO) for 8% (LHV H2/LHV CH4) supplementation at an exhaust O2 level of 10% were demonstrated, which is a 98% NOx emissions reduction compared to the leanest unsupplemented operating condition. Spark ignition energy reduction (which will increase ignition system life) was carried out at an oxygen level of 9%, leading to a NOx emission level of 28 ppm (0.13 g/bhp-hr NO). The spark ignition energy reduction testing found that spark energy could be reduced 22% (from 151 mJ supplied to the coil) with 13% (LHV H2/LHV CH4) hydrogen supplementation, and even further reduced 27% with 17% hydrogen supplementation, with no reportable effect on NOx emissions for these conditions and with stable engine torque output. Another important result is that the combustion duration was shown to be only a function of hydrogen supplementation, not a function of ignition energy (until the ignitability limit was reached). The next logical step leading from these promising results is to see how much the spark energy reduction translates into increase in spark plug life, which may be accomplished by durability testing.

  14. A University Consortium on High Pressure, Lean Combustion for...

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

    High Pressure, Lean Combustion for Efficient and Clean IC Engines (UM - lead, MIT, UCB) A University Consortium on High Pressure, Lean Combustion for Efficient and Clean IC Engines...

  15. Preface: Special Issue on Catalytic Control of Lean-Burn Engine Exhaust Emissions

    SciTech Connect (OSTI)

    Yezerets, Aleksey; Peden, Charles HF; Szanyi, Janos; Nova, Isabella; Epling, Bill

    2012-04-30T23:59:59.000Z

    This issue of Catalysis Today includes original research articles based on select presentations from the Mobile Emissions Control Symposium at the 22nd North American Catalysis Society (NACS) Meeting held in Detroit in June 2011, with a particular focus on catalyzed diesel emissions control. The Symposium was dedicated to the memory of Dr. Haren Gandhi, a visionary technology leader and a passionate environmental advocate.

  16. Nanocomposites for nitrogen oxide emissions control in lean-burn engines

    E-Print Network [OSTI]

    Pitukmanorom, Pemakorn, 1976-

    2004-01-01T23:59:59.000Z

    (cont.) reducing agent than propane in the SCR of NO. Pt-Rh/CuO/A1?O? nanocomposites capable of adsorbing SO? in oxygen-rich environment as metal sulfates and releasing SO? in reducing atmosphere were synthesized with ...

  17. Preface: Special Issue on Catalytic Control of Lean-Burn Engine...

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

    Society (NACS) Meeting held in Detroit in June 2011, with a particular focus on catalyzed diesel emissions control. The Symposium was dedicated to the memory of Dr. Haren Gandhi, a...

  18. Passive Ammonia SCR for Lean Burn SIDI Engines | 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'tOrigin of Contamination in235-1 Termoelectrica U.SPRESSHeavy-duty

  19. Transient Burned Gas Rate Control on VVA equipped Diesel Engines

    E-Print Network [OSTI]

    of cylinder filling phenomenon is determined. It expresses, under the form of a discrete event dynamics are picked up downstream the turbine and the after-treatment system. The fresh air and burned gases mix. Recently, a new way to generate EGR has emerged. On top of these technological solutions, additional

  20. Investigation of spark discharge processes and ignition systems for spark-ignited internal combustion engines

    E-Print Network [OSTI]

    Khare, Yogesh Jayant

    2000-01-01T23:59:59.000Z

    includes an evaluation of the various types of conventional as well as high-energy ignition systems for lean burn engines. An experimental ignition system was constructed to determine the effect of ignition energy, spark plug electrode geometry and gas...

  1. Optimal control of a gasolinefueled car engine under pollution constraint

    E-Print Network [OSTI]

    Bonnans, Frédéric

    Optimal control of a gasoline­fueled car engine under pollution constraint J. Fr'ed'eric Bonnans was introduced in order to decrease fuel consumption. This technology, called ``lean­burn engine'', uses an air­fuel mixture which contains less fuel than in a classical engine. The air­fuel mixture of an engine

  2. NH3 generation over commercial Three-Way Catalysts and Lean-NOx...

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

    & Publications Emissions Control for Lean Gasoline Engines Emissions Control for Lean Gasoline Engines Spatiotemporal Distribution of NOx Storage: a Factor Controlling NH3 and...

  3. Leaning into Engineering: Tenured Women Faculty and the Policies and Programs That Support Them

    E-Print Network [OSTI]

    Karpman, Deborah

    2015-01-01T23:59:59.000Z

    career as a woman in engineering? a. In your department? b.faculty in science and engineering. Journal of Women inacademic science, technology, engineering, and mathematics.

  4. Determination of performance characteristics of a one-cylinder diesel engine modified to burn low-Btu (lignite) gas

    E-Print Network [OSTI]

    Blacksmith, James Richard

    1979-01-01T23:59:59.000Z

    DETERMINATION OF PERFORMANCE CHARACTERISTICS OF A ONE-CYLINDER DIESEL ENGINE MODIFIED TO BURN LOW-BTU (LIGNITE) GAS A Thesis JAMES RICHARD BLACKSMITH Submitted to the Graduate College of Texas A86YI University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1979 Major Subject: Mechanical Engineering DETERMINATION OF PERFORMANCE CHARACTERISTICS OF A ONE-CYLINDER DIESEL ENGINE MODIFIED TO BURN LOW-BTU (LIGNITE) GAS A Thesis by JAMES RICHARD BLACKSMITH...

  5. Development of the Cooper-Bessemer CleanBurn gas-diesel (dual-fuel) engine

    SciTech Connect (OSTI)

    Blizzard, D.T. (Cooper-Bessemer Reciprocating Products Div., Cooper Industries, Grove City, PA (United States)); Schaub, F.S.; Smith, J.G. (Cooper-Bessemer Reciprocating Products Div., Cooper Industries, Mount Vernon, OH (United States))

    1992-07-01T23:59:59.000Z

    NO[sub x] emission legislation requirements for large-bore internal combustion engines have required engine manufacturers to continue to develop and improve techniques for exhaust emission reduction. This paper describes the development of the Cooper-Bessemer Clean Burn gas-diesel (dual-fuel) engine that results in NO[sub x] reductions of up to 92 percent as compared with an uncontrolled gas-diesel engine. Historically, the gas-diesel and diesel engine combustion systems have not responded to similar techniques of NO[sub x] reduction that have been successful on straight spark-ignited natural gas burning engines. NO[sub x] levels of a nominal 1.0 g/BHP-h, equal to the spark-ignited natural gas fueled engine, have been achieved for the gas-diesel and are described. In addition, the higher opacity exhaust plume characteristic of gas-diesel combustion is significantly reduced or eliminated. This achievement is considered to be a major breakthrough, and the concept can be applied to both new and retrofit applications.

  6. Jet Ignition Research for Clean Efficient Combustion Engines Prasanna Chinnathambi, Abdullah Karimi, Manikanda Rajagopal, Razi Nalim

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Jet Ignition Research for Clean Efficient Combustion Engines Prasanna Chinnathambi, Abdullah Karimi University Indianapolis Abstract Ignition by a jet of hot gas has application in lean-burn pre-chamber internal combustion engines and in innovative pressure-gain combustors for gas turbine engines. Jet

  7. Direct fired reciprocating engine and bottoming high temperature fuel cell hybrid

    DOE Patents [OSTI]

    Geisbrecht, Rodney A. (New Alexandria, PA); Holcombe, Norman T. (McMurray, PA)

    2006-02-07T23:59:59.000Z

    A system of a fuel cell bottoming an internal combustion engine. The engine exhaust gas may be combined in varying degrees with air and fed as input to a fuel cell. Reformer and oxidizers may be combined with heat exchangers to accommodate rich and lean burn conditions in the engine in peaking and base load conditions without producing high concentrations of harmful emissions.

  8. assisted lean operation: Topics by E-print Network

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

    Portman, Douglas 31 Combustion lean limits fundamentals and their application to a SI hydrogen-enhanced engine concept MIT - DSpace Summary: Operating an engine with excess...

  9. Efficient Emissions Control for Multi-Mode Lean DI Engines | Department of

    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:RevisedAdvisory BoardNucleate Boiling Efficient Cooling in Engines

  10. Lean Gasoline System Development for Fuel Efficient Small Car

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

    Development Progression Phase 1 Initial Concept Phase 2 Refinement Phase 3 Optimization May '10 May '11 May '12 Sep '13 May '13 2.2L NA Lean Engine Lean Boost Controls...

  11. Efficient Emissions Control for Multi-Mode Lean DI Engines | Department of

    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:RevisedAdvisory BoardNucleate Boiling Efficient Cooling in EnginesEnergy 0 DOE

  12. Lean Six Sigma Lean Six Sigma

    E-Print Network [OSTI]

    McGraw, Kevin J.

    Lean Six Sigma Lean Six Sigma Lean Six Sigma is a fundamental and comprehensive approach to solve at Toyota, and companies in other sectors that have followed Toyota's example, while Six Sigma evolved from, among others. This program will allow individuals with little or no knowledge of the Six Sigma or Lean

  13. Turbulence-Chemistry Interaction in Lean Premixed Hydrogen Combustion

    E-Print Network [OSTI]

    Bell, John B.

    alternatives to traditional petroleum and natural gas fuels. Burning under lean condi- tions reduces of conditions expected from gas turbine combustors. At these higher turbulence in- tensities, hydrogen flamesTurbulence-Chemistry Interaction in Lean Premixed Hydrogen Combustion A. J. Aspden1,2 , M. S. Day2

  14. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Pike, Edward

    2014-03-31T23:59:59.000Z

    The objective of the Cummins ARES program, in partnership with the US Department of Energy (DOE), is to develop advanced natural gas engine technologies that increase engine system efficiency at lower emissions levels while attaining lower cost of ownership. The goals of the project are to demonstrate engine system achieving 50% Brake Thermal Efficiency (BTE) in three phases, 44%, 47% and 50% (starting baseline efficiency at 36% BTE) and 0.1 g/bhp-hr NOx system out emissions (starting baseline NOx emissions at 2 – 4 g/bhp-hr NOx). Primary path towards above goals include high Brake Mean Effective Pressure (BMEP), improved closed cycle efficiency, increased air handling efficiency and optimized engine subsystems. Cummins has successfully demonstrated each of the phases of this program. All targets have been achieved through application of a combined set of advanced base engine technologies and Waste Heat Recovery from Charge Air and Exhaust streams, optimized and validated on the demonstration engine and other large engines. The following architectures were selected for each Phase: Phase 1: Lean Burn Spark Ignited (SI) Key Technologies: High Efficiency Turbocharging, Higher Efficiency Combustion System. In production on the 60/91L engines. Over 500MW of ARES Phase 1 technology has been sold. Phase 2: Lean Burn Technology with Exhaust Waste Heat Recovery (WHR) System Key Technologies: Advanced Ignition System, Combustion Improvement, Integrated Waste Heat Recovery System. Base engine technologies intended for production within 2 to 3 years Phase 3: Lean Burn Technology with Exhaust and Charge Air Waste Heat Recovery System Key Technologies: Lower Friction, New Cylinder Head Designs, Improved Integrated Waste Heat Recovery System. Intended for production within 5 to 6 years Cummins is committed to the launch of next generation of large advanced NG engines based on ARES technology to be commercialized worldwide.

  15. HEART SMART NUTRITION Be a Lean Machine

    E-Print Network [OSTI]

    Lesson 6 HEART SMART NUTRITION Be a Lean Machine This Heart Smart Nutrition series can help you Heart, Lung and Blood Institute). Physical activity increases your metabolic rate, which helps to burn more calories. Plus it helps the heart and lungs function to full capacity. Exercise also helps raise

  16. Lean Transition of Emerging Industrial Capability (LeanTEC)

    E-Print Network [OSTI]

    Shroyer, E.

    Lean Transition of Emerging Industrial Capability (LeanTEC) program was a cooperative agreement between the Boeing Company

  17. Lean blowoff detection sensor

    SciTech Connect (OSTI)

    Thornton, Jimmy (Morgantown, WV); Straub, Douglas L. (Morgantown, WV); Chorpening, Benjamin T. (Morgantown, WV); Huckaby, David (Morgantown, WV)

    2007-04-03T23:59:59.000Z

    Apparatus and method for detecting incipient lean blowoff conditions in a lean premixed combustion nozzle of a gas turbine. A sensor near the flame detects the concentration of hydrocarbon ions and/or electrons produced by combustion and the concentration monitored as a function of time are used to indicate incipient lean blowoff conditions.

  18. Practical delay modeling of externally recirculated burned gas fraction for Spark-Ignited Engines

    E-Print Network [OSTI]

    . INTRODUCTION AND COMPARISON WITH DIESEL EXHAUST GAS RECIRCULATION To prevent the malicious knock phenomenon downsides. During tip-outs (defined as a transient mode during which the torque demand is suddenly decreased. Scheme of the intake burned gas fraction dynamics. In the seemingly similar context of automotive Diesel

  19. Exhaust particle characterization for lean and stoichiometric DI vehicles operating on ethanol-gasoline blends

    SciTech Connect (OSTI)

    Storey, John Morse [ORNL] [ORNL; Barone, Teresa L [ORNL] [ORNL; Thomas, John F [ORNL] [ORNL; Huff, Shean P [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    Gasoline direct injection (GDI) engines can offer better fuel economy and higher performance over their port fuel-injected (PFI) counterparts, and are now appearing in increasingly more U.S. and European vehicles. Small displacement, turbocharged GDI engines are replacing large displacement engines, particularly in light-duty trucks and sport utility vehicles, in order for manufacturers to meet the U.S. fuel economy standards for 2016. Furthermore, lean-burn GDI engines can offer even higher fuel economy than stoichiometric GDI engines and have overcome challenges associated with cost-effective aftertreatment for NOx control. Along with changes in gasoline engine technology, fuel composition may increase in ethanol content beyond the current 10% due to the recent EPA waiver allowing 15% ethanol. In addition, the Renewable Fuels Standard passed as part of the 2007 Energy Independence and Security Act (EISA) mandates the use of biofuels in upcoming years. GDI engines are of environmental concern due to their high particulate matter (PM) emissions relative to port-fuel injected (PFI) gasoline vehicles; widespread market penetration of GDI vehicles may result in additional PM from mobile sources at a time when the diesel contribution is declining. In this study, we characterized particulate emissions from a European certified lean-burn GDI vehicle operating on ethanol-gasoline blends. Particle mass and particle number concentration emissions were measured for the Federal Test Procedure urban driving cycle (FTP 75) and the more aggressive US06 driving cycle. Particle number-size distributions and organic to elemental carbon ratios (OC/EC) were measured for 30 MPH and 80 MPH steady-state operation. In addition, particle number concentration was measured during wide open throttle accelerations (WOTs) and gradual accelerations representative of the FTP 75. Fuels included certification gasoline and 10% (E10) and 20% (E20) ethanol blends from the same supplier. The particle mass emissions were approximately 3 and 7 mg/mile for the FTP75 and US06, respectively, with lower emissions for the ethanol blends. The data are compared to a previous study on a U.S.-legal stoichiometric GDI vehicle operating on the same ethanol blends. The lean-burn GDI vehicle emitted a higher number of particles, but had an overall smaller average size. Particle number per mile decreased with increasing ethanol content for the transient tests. For the 30 and 80 mph tests, particle number concentration decreased with increasing ethanol content, although the shape of the particle size distribution remained the same. Engine-out OC/EC ratios were highest for the stoichiometric GDI vehicle with E20, but tailpipe OC/EC ratios were similar for all vehicles.

  20. TriBITS lifecycle model. Version 1.0, a lean/agile software lifecycle model for research-based computational science and engineering and applied mathematical software.

    SciTech Connect (OSTI)

    Willenbring, James M.; Bartlett, Roscoe Ainsworth (Oak Ridge National Laboratory, Oak Ridge, TN); Heroux, Michael Allen

    2012-01-01T23:59:59.000Z

    Software lifecycles are becoming an increasingly important issue for computational science and engineering (CSE) software. The process by which a piece of CSE software begins life as a set of research requirements and then matures into a trusted high-quality capability is both commonplace and extremely challenging. Although an implicit lifecycle is obviously being used in any effort, the challenges of this process - respecting the competing needs of research vs. production - cannot be overstated. Here we describe a proposal for a well-defined software lifecycle process based on modern Lean/Agile software engineering principles. What we propose is appropriate for many CSE software projects that are initially heavily focused on research but also are expected to eventually produce usable high-quality capabilities. The model is related to TriBITS, a build, integration and testing system, which serves as a strong foundation for this lifecycle model, and aspects of this lifecycle model are ingrained in the TriBITS system. Here, we advocate three to four phases or maturity levels that address the appropriate handling of many issues associated with the transition from research to production software. The goals of this lifecycle model are to better communicate maturity levels with customers and to help to identify and promote Software Engineering (SE) practices that will help to improve productivity and produce better software. An important collection of software in this domain is Trilinos, which is used as the motivation and the initial target for this lifecycle model. However, many other related and similar CSE (and non-CSE) software projects can also make good use of this lifecycle model, especially those that use the TriBITS system. Indeed this lifecycle process, if followed, will enable large-scale sustainable integration of many complex CSE software efforts across several institutions.

  1. The Complete Burning of Weapons Grade Plutonium and Highly Enriched Uranium with (Laser Inertial Fusion-Fission Energy) LIFE Engine

    SciTech Connect (OSTI)

    Farmer, J C; Diaz de la Rubia, T; Moses, E

    2008-12-23T23:59:59.000Z

    The National Ignition Facility (NIF) project, a laser-based Inertial Confinement Fusion (ICF) experiment designed to achieve thermonuclear fusion ignition and burn in the laboratory, is under construction at the Lawrence Livermore National Laboratory (LLNL) and will be completed in April of 2009. Experiments designed to accomplish the NIF's goal will commence in late FY2010 utilizing laser energies of 1 to 1.3 MJ. Fusion yields of the order of 10 to 20 MJ are expected soon thereafter. Laser initiated fusion-fission (LIFE) engines have now been designed to produce nuclear power from natural or depleted uranium without isotopic enrichment, and from spent nuclear fuel from light water reactors without chemical separation into weapons-attractive actinide streams. A point-source of high-energy neutrons produced by laser-generated, thermonuclear fusion within a target is used to achieve ultra-deep burn-up of the fertile or fissile fuel in a sub-critical fission blanket. Fertile fuels including depleted uranium (DU), natural uranium (NatU), spent nuclear fuel (SNF), and thorium (Th) can be used. Fissile fuels such as low-enrichment uranium (LEU), excess weapons plutonium (WG-Pu), and excess highly-enriched uranium (HEU) may be used as well. Based upon preliminary analyses, it is believed that LIFE could help meet worldwide electricity needs in a safe and sustainable manner, while drastically shrinking the nation's and world's stockpile of spent nuclear fuel and excess weapons materials. LIFE takes advantage of the significant advances in laser-based inertial confinement fusion that are taking place at the NIF at LLNL where it is expected that thermonuclear ignition will be achieved in the 2010-2011 timeframe. Starting from as little as 300 to 500 MW of fusion power, a single LIFE engine will be able to generate 2000 to 3000 MWt in steady state for periods of years to decades, depending on the nuclear fuel and engine configuration. Because the fission blanket in a fusion-fission hybrid system is subcritical, a LIFE engine can burn any fertile or fissile nuclear material, including unenriched natural or depleted U and SNF, and can extract a very high percentage of the energy content of its fuel resulting in greatly enhanced energy generation per metric ton of nuclear fuel, as well as nuclear waste forms with vastly reduced concentrations of long-lived actinides. LIFE engines could thus provide the ability to generate vast amounts of electricity while greatly reducing the actinide content of any existing or future nuclear waste and extending the availability of low cost nuclear fuels for several thousand years. LIFE also provides an attractive pathway for burning excess weapons Pu to over 99% FIMA (fission of initial metal atoms) without the need for fabricating or reprocessing mixed oxide fuels (MOX). Because of all of these advantages, LIFE engines offer a pathway toward sustainable and safe nuclear power that significantly mitigates nuclear proliferation concerns and minimizes nuclear waste. An important aspect of a LIFE engine is the fact that there is no need to extract the fission fuel from the fission blanket before it is burned to the desired final level. Except for fuel inspection and maintenance process times, the nuclear fuel is always within the core of the reactor and no weapons-attractive materials are available outside at any point in time. However, an important consideration when discussing proliferation concerns associated with any nuclear fuel cycle is the ease with which reactor fuel can be converted to weapons usable materials, not just when it is extracted as waste, but at any point in the fuel cycle. Although the nuclear fuel remains in the core of the engine until ultra deep actinide burn up is achieved, soon after start up of the engine, once the system breeds up to full power, several tons of fissile material is present in the fission blanket. However, this fissile material is widely dispersed in millions of fuel pebbles, which can be tagged as individual accountable items, and thus made difficult to diver

  2. Lost Opportunities in Industrial Energy Efficiency: New Production Lean Manufacturing and Lean Energy

    E-Print Network [OSTI]

    Seryak, J.; Epstein, G.; D'Antonio, M.

    2006-01-01T23:59:59.000Z

    companies regularly increase production by adding additional manufacturing equipment, or increasing operating hours. This approach can add large new energy loads to the electrical grid and gas distribution networks. Alternately, increasing production...Lost Opportunities in Industrial Energy Efficiency: New Production, Lean Manufacturing and Lean Energy John Seryak Gary Epstein Mark D’Antonio Engineer jseryak@ers-inc.com President gepstein@ers-inc.com Vice President mdantonio...

  3. Production Operations Level: Transition-To-Lean Roadmap

    E-Print Network [OSTI]

    Lean Advancement Initiative

    2000-06-05T23:59:59.000Z

    This paper provides a roadmap for transitioning an existing production operation to one that fully implements a lean manufacturing philosophy. Integration of engineering, human resources, and business viewpoints are ...

  4. Engineering and Physics Optimization of Breed and Burn Fast Reactor Systems: Annual and Final Report

    SciTech Connect (OSTI)

    Kevan D. Weaver; Theron Marshall; James Parry

    2005-10-01T23:59:59.000Z

    The Idaho National Laboratory (INL) contribution to the Nuclear Energy Research Initiative (NERI) project number 2002-005 was divided into reactor physics, and thermal-hydraulics and plant design. The research targeted credible physics and thermal-hydraulics models for a gas-cooled fast reactor, analyzing various fuel and in-core fuel cycle options to achieve a true breed and burn core, and performing a design basis Loss of Coolant Accident (LOCA) analysis on that design. For the physics analysis, a 1/8 core model was created using different enrichments and simulated equilibrium fuel loadings. The model was used to locate the hot spot of the reactor, and the peak to average energy deposition at that location. The model was also used to create contour plots of the flux and energy deposition over the volume of the reactor. The eigenvalue over time was evaluated using three different fuel configurations with the same core geometry. The breeding capabilities of this configuration were excellent for a 7% U-235 model and good in both a plutonium model and a 14% U-235 model. Changing the fuel composition from the Pu fuel which provided about 78% U-238 for breeding to the 14% U-235 fuel with about 86% U-238 slowed the rate of decrease in the eigenvalue a noticeable amount. Switching to the 7% U-235 fuel with about 93% U-238 showed an increase in the eigenvalue over time. For the thermal-hydraulic analysis, the reactor design used was the one forwarded by the MIT team. This reactor design uses helium coolant, a Brayton cycle, and has a thermal power of 600 MW. The core design parameters were supplied by MIT; however, the other key reactor components that were necessary for a plausible simulation of a LOCA were not defined. The thermal-hydraulic and plant design research concentrated on determining reasonable values for those undefined components. The LOCA simulation was intended to provide insights on the influence of the Reactor Cavity Cooling System (RCCS), the containment building, and a Decay Heat Removal System (DHRS) on the natural circulation heat transfer of the core's decay heat. A baseline case for natural circulation had to be established in order to truly understand the impact of the added safety systems. This baseline case did not include a DHRS, although the current MIT design does have a DHRS that features the highly efficient Printed Circuit Heat Exchangers (PCHEs). The initial LOCA analysis revealed that the RCCS was insufficient to maintain the reactor core below the fuel matrix decomposition temperature. A guard containment was added to the model in order to maintain a prescribed backpressure during the LOCA to enhance the natural circulation. The backpressure approach did provide satisfactory natural convection during the LOCA. The necessary backpressure was 1.8 MPa, which was not especially different from the values reported by other gas fast reactor researchers. However, as the model evolved to be more physically representative of a nuclear reactor, i.e., it included radial peaking factors, inlet plenum orificing, and the degradation of SiC thermal properties as a result of irradiation, the LOCA-induced fuel temperatures were not consistently below the decomposition limit.

  5. Lean Enablers for Systems Engineering

    E-Print Network [OSTI]

    SE WG January 27-28, 2008, ABQ Textron Systems Northrop Grumman Integrated Systems Raytheon Co. Bell Lockheed Martin Space Systems Rockwell Collins Pratt & Whitney BAE Systems Raytheon Co. Northrop Grumman*, Raytheon, FL (2006-08) · Charles Garland*, AFIT · Ray Jorgensen*, Rockwell Collins, IA · Earll Murman, MIT

  6. Technologies for Gaseous Fueled Advanced Reciprocating Engine...

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

    gas, etc. Leaner Operation 1.0 Rich-burn 0.65 to 0.7 Lean-burn 42% Turbo-charged No aftertreatment 36% High EGR Turbo-charged 3-way catalyst 1...

  7. High-bandwidth Modulation of H2/Syngas Fuel to Control Combustion Dynamics in Micro-Mixing Lean Premix Systems

    SciTech Connect (OSTI)

    Jeff Melzak; Tim Lieuwen; Adel Mansour

    2012-01-31T23:59:59.000Z

    The goal of this program was to develop and demonstrate fuel injection technologies that will facilitate the development of cost-effective turbine engines for Integrated Gasification Combined Cycle (IGCC) power plants, while improving efficiency and reducing emissions. The program involved developing a next-generation multi-point injector with enhanced stability performance for lean premix turbine systems that burn hydrogen (H2) or synthesis gas (syngas) fuels. A previously developed injector that demonstrated superior emissions performance was improved to enhance static flame stability through zone staging and pilot sheltering. In addition, piezo valve technology was implemented to investigate the potential for enhanced dynamic stability through high-bandwidth modulation of the fuel supply. Prototype injector and valve hardware were tested in an atmospheric combustion facility. The program was successful in meeting its objectives. Specifically, the following was accomplished: Demonstrated improvement of lean operability of the Parker multi-point injector through staging of fuel flow and primary zone sheltering; Developed a piezo valve capable of proportional and high-bandwidth modulation of gaseous fuel flow at frequencies as high as 500 Hz; The valve was shown to be capable of effecting changes to flame dynamics, heat release, and acoustic signature of an atmospheric combustor. The latter achievement indicates the viability of the Parker piezo valve technology for use in future adaptively controlled systems for the mitigation of combustion instabilities, particularly for attenuating combustion dynamics under ultra-lean conditions.

  8. Lean clausesets: Generalisations of minimally

    E-Print Network [OSTI]

    Kullmann, Oliver

    Autarkies and autark subsets IV Lean clause­sets V Linear autarkies --- polynomial time VI Matching

  9. Simulation of turbulent flames relevant to spark-ignition engines

    E-Print Network [OSTI]

    Ahmed, Irufan

    2014-04-29T23:59:59.000Z

    -premixed. In premixed flames, fuel and oxidiser are mixed homo- geneously before combustion. Lean-burn gas turbines for power generation and spark-ignition (SI) IC engines are typical examples of this type of combustion. In non-premixed or ‘diffusion flames’, the fuel... and oxidiser are transported sep- arately into the reaction zones by diffusion. Aero-engine gas turbines and diesel engines are typical examples of non-premixed combustion. It is often the case in practical systems that fuel and air is not completely mixed...

  10. Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines

    E-Print Network [OSTI]

    Littlejohn, David

    2008-01-01T23:59:59.000Z

    of Engineering for Gas Turbines and Power-Transactions ofInjector for Lean Premixed Gas Turbines D. Littlejohn and R.11. IC ENGINE AND GAS TURBINE COMBUSTION SHORT TITLE: Fuel

  11. Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines

    E-Print Network [OSTI]

    Littlejohn, David

    2008-01-01T23:59:59.000Z

    of Engineering for Gas Turbines and Power-Transactions ofCOLLOQUIM 11. IC ENGINE AND GAS TURBINE COMBUSTION SHORTInjector for Lean Premixed Gas Turbines D. Littlejohn and R.

  12. Lean, Energy, and Savings: Energy Impacts of Lean Manufacturing

    E-Print Network [OSTI]

    Milward, R.; Gilless, C.; Brown, K.

    2013-01-01T23:59:59.000Z

    . William Edwards Deming were taken to heart by the Japanese during the reconstruction of Japanese industry following World War II and became key concepts of Kaizen. Kaizen is a philosophy of improvement through waste elimination, productivity... of Strategic Environmental Management. 2011. Lean Thinking and Methods: Kaizen. www.epa.gov/lean/environment/methods/kaizen. htm. Washington, D.C. (3) Environmental Protection Agency. 2011. The Lean and Energy Toolkit. EPA-100-K-07-003. Prepared by Ross...

  13. Using lean enterprise principles to drive quality and on time delivery to customers : a study of the Honeywell Aerospace Engine Assembly and Test Center of Excellence

    E-Print Network [OSTI]

    Jones, Andrea (Andrea Sieg)

    2006-01-01T23:59:59.000Z

    Honeywell Aerospace has been a leader in manufacturing high quality engines to customers for decades. With engine and auxiliary power unit (APU) growth of-9% in 2005, and projected growth similar or greater for 2006, ...

  14. Lean transformation of a supply chain organization

    E-Print Network [OSTI]

    Walsh, Daniel Andres

    2008-01-01T23:59:59.000Z

    There are two basic schools of thought regarding how to approach a Lean transformation. Either start with introducing Lean tools or start with driving a Lean cultural change. Academic researchers like Steve Spear (Harvard/MIT), ...

  15. Information and Communication in Lean Product Development

    E-Print Network [OSTI]

    Graebsch, Martin

    In this thesis, the implications and influences that information and communication impose on lean product development in general, as well as the development of a lean Product Development Value Stream Display (lean PDVSD) ...

  16. Lean enterprise in the construction industry

    E-Print Network [OSTI]

    Marchini-Blanco, Juan, 1971-

    2004-01-01T23:59:59.000Z

    This thesis explores the application of the Lean Enterprise Model (LEM) to construction firms. LEM is a framework derived from lean manufacturing principles by MIT's Lean Aerospace Initiative (LAI) for the aerospace industry. ...

  17. Alumina catalysts for reduction of NOx from methanol fueled diesel engine

    SciTech Connect (OSTI)

    Yamamoto, Toshiro; Noda, Akira; Sakamoto, Takashi; Sato, Yoshio [Ministry of Transport of Japan, Kumamoto (Japan)

    1996-09-01T23:59:59.000Z

    NOx selective reducing catalysts are expected to be used for lean-burn gasoline engines and diesel engines as an effective NOx reduction measure. The authors are interested in the combination of methanol, as a reducing agent, and alumina catalyst, and have considered the NOx reduction method using effectively much unburned methanol. In this report, in order to investigate the effect of NOx reduction by the alumina catalyst, the experiment was carried out by feeding the actual exhaust gas from the methanol engine into the alumina catalyst. As a result, it was confirmed that, without addition of any other reducing agents into the exhaust gas, the alumina catalyst has activity to reduce NOx.

  18. Burning rubber

    SciTech Connect (OSTI)

    Not Available

    1987-09-01T23:59:59.000Z

    Mario Andretti, look out You are about to be surpassed in the burning rubber category by a joint venture between Oxford Energy Company and General Electric. The two companies are building the first whole tire-to-energy facility in the US in Modesto, California. This $41 million facility does not require tires to be shredded prior to incineration; it has the capacity to burn 700 tires per minute. The electricity generated will be provided to a utility company. Oxford says there are two billion waste tires on the ground and this number is increasing by 220 million a year. Of that amount, only 18 million a year are recycled.

  19. Rayleigh/Raman/LIF measurements in a turbulent lean premixed combustor

    SciTech Connect (OSTI)

    Nandula, S.P.; Pitz, R.W. [Vanderbilt Univ., Nashville, TN (United States). Dept. of Mechanical Engineering; Barlow, R.S.; Fiechtner, G.J. [Sandia National Labs., Albuquerque, NM (United States)

    1995-12-31T23:59:59.000Z

    Much of the industrial electrical generation capability being added worldwide is gas-turbine engine based and is fueled by natural gas. These gas-turbine engines use lean premixed (LP) combustion to meet the strict NO{sub x} emission standards, while maintaining acceptable levels of CO. In conventional, diffusion flame gas turbine combustors, large amount of NO{sub x} forms in the hot stoichiometric zones via the Zeldovich (thermal) mechanism. Hence, lean premixed combustors are rapidly becoming the norm, since they are specifically designed to avoid these hot stoichiometric zones and the associated thermal NO{sub x}. However, considerable research and development are still required to reduce the NO{sub x} levels (25-40 ppmvd adjusted to 15% O{sub 2} with the current technology), to the projected goal of under 10 ppmvd by the turn of the century. Achieving this objective would require extensive experiments in LP natural gas (or CH{sub 4}) flames for understanding the combustion phenomena underlying the formation of the exhaust pollutants. Although LP combustion is an effective way to control NO{sub x}, the downside is that it increases the CO emissions. The formation and destruction of the pollutants (NO{sub x} and CO) are strongly affected by the fluid mechanics, the finite-rate chemistry, and their (turbulence-chemistry) interactions. Hence, a thorough understanding of these interactions is vital for controlling and reducing the pollutant emissions. The present research is contributing to this goal by providing a detailed nonintrusive laser based data set with good spatial and temporal resolutions of the pollutants (NO and CO) along with the major species, temperature, and OH. The measurements reported in this work, along with the existing velocity data on a turbulent LP combustor burning CH{sub 4}, would provide insight into the turbulence-chemistry interactions and their effect on pollutant formation.

  20. 2009-01-0366 In-cylinder Burned Gas Rate Estimation and Control on VVA Diesel Engines

    E-Print Network [OSTI]

    the combustion cham- bers of turbocharged Diesel engines equipped with low pressure EGR loop and VVA actuator. We engine. Using a high Exhaust Gas Recirculation (EGR) rate along with advanced combustion timing allows Monoxides (CO) emissions. To compensate the exhaust temperature reduction, an Internal Exhaust Gas

  1. Piloted rich-catalytic lean-burn hybrid combustor

    DOE Patents [OSTI]

    Newburry, Donald Maurice (Orlando, FL)

    2002-01-01T23:59:59.000Z

    A catalytic combustor assembly which includes, an air source, a fuel delivery means, a catalytic reactor assembly, a mixing chamber, and a means for igniting a fuel/air mixture. The catalytic reactor assembly is in fluid communication with the air source and fuel delivery means and has a fuel/air plenum which is coated with a catalytic material. The fuel/air plenum has cooling air conduits passing therethrough which have an upstream end. The upstream end of the cooling conduits is in fluid communication with the air source but not the fuel delivery means.

  2. Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions...

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

    and US06, transient accelerations plus steady state * Fuels: Gasoline and intermediate ethanol blends (E0, E10, E20) * Measurements: - Particle mass: collection on Teflon-coated...

  3. Next-generation Ultra-Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  4. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    Pascucci, Valerio

    , for example, be used as one component of a clean coal power plant utilizing hydrogen extracted from coal

  5. Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  6. Lean Green Skating Machine Report No. 1

    E-Print Network [OSTI]

    Levi, Anthony F. J.

    Lean Green Skating Machine Report No. 1 Lean Green Skating Machine Report No. 1 Submitted by Simon Page 1 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating Machine Report No. 1 Page 2 of 19 DISTRIBUTION STATEMENT: Distribution authorized to all. #12;Lean Green Skating

  7. Transitioning to a Lean Enterprise: A Guide for Leaders, Volume II, Transition-to-Lean Roadmap

    E-Print Network [OSTI]

    Lean Advancement Initiative

    2000-01-01T23:59:59.000Z

    Volume II of this guide is a standalone reference model for assisting lean change agents and lean implementation teams in transforming the enterprise to a lean state. It is also of value to enterprise leaders and senior ...

  8. Lean Transformations in Supply Chain, the autocatalytic nature of lean principles, and tactics for implementing lean tools

    E-Print Network [OSTI]

    Gardner, Bryan (Bryan Jay)

    2008-01-01T23:59:59.000Z

    Expanding Lean principles beyond the manufacturing floor, ultimately to entail a comprehensive Lean Enterprise, has gained increasing attention among corporations. This thesis entails a detailed case study of initiating a ...

  9. Wat is Lean Six Sigma? Lean Six Sigma is een standaard-

    E-Print Network [OSTI]

    van Rooij, Robert

    Wat is Lean Six Sigma? Lean Six Sigma is een standaard- aanpak voor het organiseren van kwaliteits standaardmodellen voor programmamanagement en de organisatiestructuur, schrijft de Lean Six Sigma aanpak een uitvoering van hun projecten en faciliteren project- tracking. Tot slot biedt Lean Six Sigma een uitgebreide

  10. Wat is Lean Six Sigma? Lean Six Sigma is een standaard-

    E-Print Network [OSTI]

    van Rooij, Robert

    Wat is Lean Six Sigma? Lean Six Sigma is een standaard- aanpak voor het organiseren van kwaliteits standaardmodellen voor programmamanagement en de organisatiestructuur, schrijft de Lean Six Sigma aanpak een uitvoering van hun projecten en faciliteren project- tracking.Tot slot biedt Lean Six Sigma een uitgebreide

  11. Simulation of lean premixed turbulent combustion

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    fuels such as hydrogen or syngas. Lean premixed systems havefuels such as hydrogen or syngas, which is obtained from

  12. Planning a Prescribed Burn

    E-Print Network [OSTI]

    Hanselka, C. Wayne

    2009-04-01T23:59:59.000Z

    This leaflet explains how to plan for adequate fuel for a prescribed burn, control the fire, notify the proper authority, manage the burn itself, and conduct follow-up management. A ranch checklist for prescribed burning is included....

  13. actinide burning experiment: Topics by E-print Network

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

    on the Fusion Ignition Research Experiment (FIRE), a tokamak designed for burning plasma research. Engineering 178 Can Consumers Escape the Market? Emancipatory Illuminations from...

  14. Japanese industrial research on lean combustion: A case study: International Research Monitoring Program

    SciTech Connect (OSTI)

    Hane, G.J.; Hutchinson, R.A.

    1987-08-01T23:59:59.000Z

    In recent years, Japanese automakers have introduced a number of successful lean-combustion engines. These engines, in addition to the general expertise in building small cars, have made the Japanese automobiles into the gas mileage champions of the US market. The lean-combustion engines also provide very satisfactory performance and acceptable emissions. United States automakers and research managers, who were probably better informed about lean-combustion than the Japanese were, actively investigated lean-combustion but did not develop an engine. This report examines the basis for the Japanese innovations, the research that took the Japanese past the US state of the art to permit engine development. A preliminary review of recent (1980s) Japanese literature did not turn up strong evidence of new research activity in the lean-combustion area, but did provide background on new engines developed by several major manufacturers. The study was conducted solely through the Japanese and US published literature, with emphasis on early research conducted in the 1970s. This report presents an example of how Japanese research progress can be examined by reviewing the Japanese research literature. Although useful information was obtained by this method, it is still difficult to get a complete picture. When reviewing the literature, as was done for this report, one must remember that the marginal use of references by Japanese researchers obscures prior work, as does the tendency of the Japanese to publish several articles on similar or identical topics. 50 refs., 15 figs.

  15. Lean Gasoline System Development for Fuel Efficient Small Cars

    SciTech Connect (OSTI)

    None

    2013-08-30T23:59:59.000Z

    The General Motors and DOE cooperative agreement program DE-EE0003379 is completed. The program has integrated and demonstrated a lean-stratified gasoline engine, a lean aftertreatment system, a 12V Stop/Start system and an Active Thermal Management system along with the necessary controls that significantly improves fuel efficiency for small cars. The fuel economy objective of an increase of 25% over a 2010 Chevrolet Malibu and the emission objective of EPA T2B2 compliance have been accomplished. A brief review of the program, summarized from the narrative is: The program accelerates development and synergistic integration of four cost competitive technologies to improve fuel economy of a light-duty vehicle by at least 25% while meeting Tier 2 Bin 2 emissions standards. These technologies can be broadly implemented across the U.S. light-duty vehicle product line between 2015 and 2025 and are compatible with future and renewable biofuels. The technologies in this program are: lean combustion, innovative passive selective catalyst reduction lean aftertreatment, 12V stop/start and active thermal management. The technologies will be calibrated in a 2010 Chevrolet Malibu mid-size sedan for final fuel economy demonstration.

  16. Emissions Control for Lean Gasoline Engines

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Emissions Control for Lean Gasoline Engines

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

    decrease over TWCs while H 2 levels increase - TWC is converting CO to H 2 via the Water-Gas-Shift reaction TWC increases H 2 availability for LNT under periodic rich...

  18. EFFECT ON PERFORMANCE OF ENGINE BY INJECTING HYDROGEN

    E-Print Network [OSTI]

    Rob Res; Suryakant Sharma Et Al; Suryakant Sharma; Deepak Bhardwaj; Vinay Kumar; Corresponding Suryakant Sharma

    The principle of this type of combustion is to addition of hydrogen gas to the combustion reactions of either compression or spark ignition engines. The addition of hydrogen has been shown to decrease the formation of NOx, CO and unburnt hydrocarbons. Studies have shown that added hydrogen in percentages as low as 5-10 % of the hydrocarbon fuel can reduce that hydrocarbon fuel consumption. The theory behind this concept is that the addition of hydrogen can increase the lean operation limit, improve the lean burn ability, and decrease burning time. To apply this method to an engine a source of hydrogen is needed. At this time the simplest option would be to carry a tank of hydrogen. Research is being conducted to allow the hydrogen to be reformed from the vehicles hydrocarbon fuel supply or produce hydrogen from electrolysis of water. In the future, better methods could be developed for storing hydrogen in the vehicle or production of hydrogen on-board the vehicle.

  19. Global burned area and biomass burning emissions from small fires

    E-Print Network [OSTI]

    Randerson, J. T; Chen, Y.; van der Werf, G. R; Rogers, B. M; Morton, D. C

    2012-01-01T23:59:59.000Z

    use and burn- ing of agricultural waste in the developingmanagement, such as agricultural waste burning or prescribedDuring open field agricultural waste burning [e.g. , Yevich

  20. Technical Report Value of Systems Engineering

    E-Print Network [OSTI]

    Honour, Eric C.

    This report is a follow-on from the June 2004 Air Force/Lean Aerospace Initiative Workshop on Systems Engineering for Robustness.

  1. The role of assessment in a lean transformation

    E-Print Network [OSTI]

    Shan, Raymond S. (Raymond Shing)

    2008-01-01T23:59:59.000Z

    When starting the journey to become a Lean company, companies commonly face the problem of understanding how to manage a Lean transformation. Often times, the first step in managing a Lean transformation is to understand ...

  2. Measurement and Characterization of Lean NOx Adsorber Regeneration...

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

    parks.pdf More Documents & Publications Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts Measurement and Characterization of Lean NOx Adsorber Regeneration...

  3. NOx Adsorber (Lean NOx Trap) Fundamentals (Agreement #10049 ...

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

    (Lean NOx Trap) Fundamentals (Agreement 10049 - PNNL Project 47120) NOx Adsorber (Lean NOx Trap) Fundamentals (Agreement 10049 - PNNL Project 47120) Presentation from the U.S....

  4. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    More Documents & Publications Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control...

  5. Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission...

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

    Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Presents...

  6. Measurement and Characterization of Lean NOx Adsorber Regeneration...

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

    Lean NOx Adsorber Regeneration and Desulfation and Controlling NOx from Multi-mode Measurement and Characterization of Lean NOx Adsorber Regeneration and Desulfation and...

  7. Method for automatically evaluating a transition from a batch manufacturing technique to a lean manufacturing technique

    DOE Patents [OSTI]

    Ivezic, Nenad; Potok, Thomas E.

    2003-09-30T23:59:59.000Z

    A method for automatically evaluating a manufacturing technique comprises the steps of: receiving from a user manufacturing process step parameters characterizing a manufacturing process; accepting from the user a selection for an analysis of a particular lean manufacturing technique; automatically compiling process step data for each process step in the manufacturing process; automatically calculating process metrics from a summation of the compiled process step data for each process step; and, presenting the automatically calculated process metrics to the user. A method for evaluating a transition from a batch manufacturing technique to a lean manufacturing technique can comprise the steps of: collecting manufacturing process step characterization parameters; selecting a lean manufacturing technique for analysis; communicating the selected lean manufacturing technique and the manufacturing process step characterization parameters to an automatic manufacturing technique evaluation engine having a mathematical model for generating manufacturing technique evaluation data; and, using the lean manufacturing technique evaluation data to determine whether to transition from an existing manufacturing technique to the selected lean manufacturing technique.

  8. INL '@work' Nuclear Engineer

    ScienceCinema (OSTI)

    McLean, Heather

    2013-05-28T23:59:59.000Z

    Heather MacLean talks about her job as a Nuclear Engineer for Idaho National Laboratory. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  9. Implementing Enterprise Lean A Look at Ogden Air Logistics Center

    E-Print Network [OSTI]

    Rebentisch, Dr. Eric E.

    2004-07-30T23:59:59.000Z

    This paper documents the enterprise-wide lean implementation effort at Ogden Air Logistics Center, Hill

  10. Logistics: A Step Towards Lean Construction Proceedings IGLC-7 121

    E-Print Network [OSTI]

    Tommelein, Iris D.

    Logistics: A Step Towards Lean Construction Proceedings IGLC-7 121 LOGISTICS: A STEP TOWARDS LEAN of these experimental operations with a special emphasis on site logistics, which is considered as a step towards lean WORDS Logistics, lean construction, quality, transport. 1 Head of project "Site and Industry

  11. Method of controlling cyclic variation in engine combustion

    DOE Patents [OSTI]

    Davis, L.I. Jr.; Daw, C.S.; Feldkamp, L.A.; Hoard, J.W.; Yuan, F.; Connolly, F.T.

    1999-07-13T23:59:59.000Z

    Cyclic variation in combustion of a lean burning engine is reduced by detecting an engine combustion event output such as torsional acceleration in a cylinder (i) at a combustion event (k), using the detected acceleration to predict a target acceleration for the cylinder at the next combustion event (k+1), modifying the target output by a correction term that is inversely proportional to the average phase of the combustion event output of cylinder (i) and calculating a control output such as fuel pulse width or spark timing necessary to achieve the target acceleration for cylinder (i) at combustion event (k+1) based on anti-correlation with the detected acceleration and spill-over effects from fueling. 27 figs.

  12. Method of controlling cyclic variation in engine combustion

    DOE Patents [OSTI]

    Davis, Jr., Leighton Ira (Ann Arbor, MI); Daw, Charles Stuart (Knoxville, TN); Feldkamp, Lee Albert (Plymouth, MI); Hoard, John William (Livonia, MI); Yuan, Fumin (Canton, MI); Connolly, Francis Thomas (Ann Arbor, MI)

    1999-01-01T23:59:59.000Z

    Cyclic variation in combustion of a lean burning engine is reduced by detecting an engine combustion event output such as torsional acceleration in a cylinder (i) at a combustion event (k), using the detected acceleration to predict a target acceleration for the cylinder at the next combustion event (k+1), modifying the target output by a correction term that is inversely proportional to the average phase of the combustion event output of cylinder (i) and calculating a control output such as fuel pulse width or spark timing necessary to achieve the target acceleration for cylinder (i) at combustion event (k+1) based on anti-correlation with the detected acceleration and spill-over effects from fueling.

  13. Low temperature combustion using nitrogen enrichment to mitigate NOx from large bore natural gas fueled engines.

    SciTech Connect (OSTI)

    Biruduganti, M.; Gupta, S.; Sekar, R.; Energy Systems

    2010-01-01T23:59:59.000Z

    Low temperature combustion is identified as one of the pathways to meet the mandatory ultra low NO{sub x} emissions levels set by the regulatory agencies. Exhaust gas recirculation (EGR) is a well known technique to realize low NO{sub x} emissions. However, EGR has many built-in adverse ramifications that negate its advantages in the long term. This paper discusses nitrogen enrichment of intake air using air separation membranes as a better alternative to the mature EGR technique. This investigation was undertaken to determine the maximum acceptable level of nitrogen enrichment of air for a single-cylinder spark-ignited natural gas engine. NO{sub x} reduction as high as 70% was realized with a modest 2% nitrogen enrichment while maintaining power density and simultaneously improving fuel conversion efficiency (FCE). Any enrichment beyond this level degraded engine performance in terms of power density, FCE, and unburned hydrocarbon emissions. The effect of ignition timing was also studied with and without N{sub 2} enrichment. Finally, lean burn versus stoichiometric operation utilizing nitrogen enrichment was compared. Analysis showed that lean burn operation along with nitrogen enrichment is one of the effective pathways for realizing better FCE and lower NO{sub x} emissions.

  14. A Numerical Study of a Simple Stochastic/Deterministic Model of Cycle-to-Cycle Combustion Fluctuations in Spark Ignition Engines

    E-Print Network [OSTI]

    G. Litak; M. Wendeker; M. Krupa; J. Czarnigowski

    2004-05-23T23:59:59.000Z

    We examine a simple, fuel-air, model of combustion in a spark ignition (si) engine with indirect injection. In our two fluid model, variations of fuel mass burned in cycle sequences appear due to stochastic fluctuations of a fuel feed amount. We have shown that a small amplitude of these fluctuations affects considerably the stability of a combustion process strongly depending on the quality of air-fuel mixture. The largest influence was found in the limit of a lean combustion. The possible effect of nonlinearities in the combustion process has been also discussed.

  15. Analysis of Homogeneous Charge Compression Ignition (HCCI) Engines for Cogeneration Applications

    SciTech Connect (OSTI)

    Aceves, S; Martinez-Frias, J; Reistad, G

    2004-04-30T23:59:59.000Z

    This paper presents an evaluation of the applicability of Homogeneous Charge Compression Ignition Engines (HCCI) for small-scale cogeneration (less than 1 MWe) in comparison to five previously analyzed prime movers. The five comparator prime movers include stoichiometric spark-ignited (SI) engines, lean burn SI engines, diesel engines, microturbines and fuel cells. The investigated option, HCCI engines, is a relatively new type of engine that has some fundamental differences with respect to other prime movers. Here, the prime movers are compared by calculating electric and heating efficiency, fuel consumption, nitrogen oxide (NOx) emissions and capital and fuel cost. Two cases are analyzed. In Case 1, the cogeneration facility requires combined power and heating. In Case 2, the requirement is for power and chilling. The results show that the HCCI engines closely approach the very high fuel utilization efficiency of diesel engines without the high emissions of NOx and the expensive diesel fuel. HCCI engines offer a new alternative for cogeneration that provides a unique combination of low cost, high efficiency, low emissions and flexibility in operating temperatures that can be optimally tuned for cogeneration systems. HCCI engines are the most efficient technology that meets the oncoming 2007 CARB NOx standards for cogeneration engines. The HCCI engine appears to be a good option for cogeneration systems and merits more detailed analysis and experimental demonstration.

  16. Center for Lifelong Engineering Education

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    Coordinator laurynfeil@utexas.edu UT's Center for Lifelong Engineering Education launches Six Sigma program Education launched a new Lean Six Sigma Black Belt certification program, designed for professionals. Lean Six Sigma Black Belt is a hands-on workshop where students are taught critical thinking skills

  17. Certificate Industrial and Systems Engineering

    E-Print Network [OSTI]

    Su, Xiao

    Six Sigma Certificate Industrial and Systems Engineering San José State University September, 2008 #12;1 Lean Enterprise and Six Sigma Lean Enterprise about transforming the old mass production-to-cradle design, incorporating design for manufacturability, reproducibility, product lifecycle, etc. Six Sigma

  18. Open Burning (New Mexico)

    Broader source: Energy.gov [DOE]

    The New Mexico Environment Department's Air Quality Bureau regulates the open burning rules established by the Environmental Improvement Board. These rules are established to protect public health...

  19. Achieving and Demonstrating FreedomCAR Engine Fuel Efficiency...

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

    NOx Adsorber Regeneration and Desulfation and Controlling NOx from Multi-mode Lean DI Engines Stretch Efficiency - Thermodynamic Analysis of New Combustion Regimes (Agreement...

  20. The Effect of Turbulent Mixing on Compression Ignition of a Lean Hydrogen/Air Mixture Jacqueline H. Chen1

    E-Print Network [OSTI]

    Im, Hong G.

    automotive engines known as homogeneous charge compression ignition combustion (HCCI). By operating under overall fuel-lean conditions, and hence, at lower temperatures, HCCI can potentially achieve high engine, the primary mode of combustion in this regime is thought to occur by volumetric autoignition. Therefore, HCCI

  1. Designing the lean enterprise performance measurement system

    E-Print Network [OSTI]

    Mahidhar, Vikram

    2005-01-01T23:59:59.000Z

    The research contained in this thesis explores design attributes of the enterprise performance measurement system required for the transformation to the lean enterprise and its management. Arguments are made from the ...

  2. Lean Product Development: Making Waste Transparent

    E-Print Network [OSTI]

    Bauch, Christoph

    2004-01-15T23:59:59.000Z

    Lean manufacturing developed by Toyota is a production philosophy that focuses on streamlining of value added activities and eliminating waste within the process with the goal to better meet customer demand. It constitutes ...

  3. Risk Management in Lean Product Development

    E-Print Network [OSTI]

    Oehmen, Josef

    This whitepaper summarizes 15 years of research conducted at MIT's Lean Advancement Initiative on the topic of risk management in product design and development. It discusses current challenges in risk management for product ...

  4. Lean transformation in aerospace assembly operations

    E-Print Network [OSTI]

    Frauenberger, Douglas H

    2007-01-01T23:59:59.000Z

    For the past two decades, virtually all manufacturing companies in the United States have adopted or are in the process of adopting lean manufacturing. Globalization has resulted in the increased availability of reliable, ...

  5. Outdoor Burning Field Operations

    E-Print Network [OSTI]

    , or Warmth 4 Fires for Disposal or Land Clearing 5 Prescribed Burns 8 Pipeline Breaks and Oil Spills 8 Other, the regulated community, and responsible state and local officials. This document covers all aspects nuisance condi- tions through the sensible regulation of outdoor burning. Summary of the Rule The Outdoor

  6. Uniform-burning matrix burner

    DOE Patents [OSTI]

    Bohn, Mark S. (Golden, CO); Anselmo, Mark (Arvada, CO)

    2001-01-01T23:59:59.000Z

    Computer simulation was used in the development of an inward-burning, radial matrix gas burner and heat pipe heat exchanger. The burner and exchanger can be used to heat a Stirling engine on cloudy days when a solar dish, the normal source of heat, cannot be used. Geometrical requirements of the application forced the use of the inward burning approach, which presents difficulty in achieving a good flow distribution and air/fuel mixing. The present invention solved the problem by providing a plenum with just the right properties, which include good flow distribution and good air/fuel mixing with minimum residence time. CFD simulations were also used to help design the primary heat exchanger needed for this application which includes a plurality of pins emanating from the heat pipe. The system uses multiple inlet ports, an extended distance from the fuel inlet to the burner matrix, flow divider vanes, and a ring-shaped, porous grid to obtain a high-temperature uniform-heat radial burner. Ideal applications include dish/Stirling engines, steam reforming of hydrocarbons, glass working, and any process requiring high temperature heating of the outside surface of a cylindrical surface.

  7. Framework for Understanding the Relationship between Lean and Safety in Construction

    E-Print Network [OSTI]

    Prakash, Ramya

    2011-08-08T23:59:59.000Z

    understanding of the relation between lean and safety. Because lean in construction is a relatively new phenomenon, there is not a completely developed understanding of how lean practices affect safety in construction. The Lean Construction Institute...

  8. Adapting the Lean Enterprise Self Assessment Tool for health care

    E-Print Network [OSTI]

    Hernandez, Cynthia Lynn

    2010-01-01T23:59:59.000Z

    The Lean Enterprise Self Assessment Tool (LESAT) is a product of the Lean Advancement Initiative (LAI) and the Massachusetts Institute of Technology. This tool has been applied by many organizations to gage their progress ...

  9. An application of lean principles within a semiconductor manufacturing environment

    E-Print Network [OSTI]

    Wildeman, Roy C

    2005-01-01T23:59:59.000Z

    Intel Corporation's Fab 23 is committed to implementing lean manufacturing to reduce their production cycle times and cost. This thesis is focused around the development of the principles of lean that are most relevant to ...

  10. Aerospace mergers and acquisitions from a lean enterprise perspective

    E-Print Network [OSTI]

    Kim, Junhong, 1974-

    2004-01-01T23:59:59.000Z

    In the past twenty years, companies in the aerospace industry experienced major transitions: mergers and acquisitions, and lean transformation initiatives. This thesis presents research about the relation of lean efforts ...

  11. Enterprise transformation & lean implementation in a globally dispersed organization

    E-Print Network [OSTI]

    Katyal, Abhishek

    2010-01-01T23:59:59.000Z

    In July 2007, the Supply Planning Organization (SPO) decided to begin its Lean journey. Through some analysis the decision was made to take a culture first approach and then follow with the use of Lean tools. The time had ...

  12. Cost-Effective Reciprocating Engine Emissions Control and Monitoring for E&P Field and Gathering Engines

    SciTech Connect (OSTI)

    Greg Beshouri; Kirby S. Chapman; Jim McCarthy; Sarah R. Nuss-Warren; Mike Whelan

    2006-03-01T23:59:59.000Z

    This quarterly report re-evaluates current market objectives in the exploration and production industry, discusses continuing progress in testing that evaluates emission control technologies applied to a two-stroke cycle natural gas-fueled engine, and presents a scheme for enacting remote monitoring and control of engines during upcoming field tests. The examination of current market objectives takes into account technological developments and changing expectations for environmental permitting which may have occurred over the last year. This demonstrates that the continuing work in controlled testing and toward field testing is on track Market pressures currently affecting the gas exploration and production industry are shown to include a push for increased production, as well as an increasing cost for environmental compliance. This cost includes the direct cost of adding control technologies to field engines as well as the indirect cost of difficulty obtaining permits. Environmental regulations continue to require lower emissions targets, and some groups of engines which had not previously been regulated will be required to obtain permits in the future. While the focus remains on NOx and CO, some permits require reporting of additional emissions chemicals. Continuing work in controlled testing uses a one cylinder Ajax DP-115 (a 13.25 in bore x 16 in stroke, 360 rpm engine) to assess a sequential analysis and evaluation of a series of engine upgrades. As with most of the engines used in the natural gas industry, the Ajax engine is a mature engine with widespread usage throughout the gas gathering industry. The end point is an assessment of these technologies that assigns a cost per unit reduction in NOx emissions. Technologies including one pre-combustion chamber, in-cylinder sensors, the means to adjust the air-to-fuel ratio, and modification of the air filter housing have been evaluated in previous reports. Current work focuses on final preparations for testing pre-combustion chambers with different characteristics and using mid-to-high-pressure fuel valves. By using the Ajax DP-115 these tests are completed in a low-cost and efficient manner. The various technologies can be quickly exchanged with different hardware, and it is inexpensive to run the engine. Progress in moving toward field testing is discussed, and a sketch of the first planned field test is presented. While early field tests will be completed using 4-stroke cycle rich-burn engines, later tests will be conducted on 2- and 4-stroke cycle lean-burn engines. The advantages of beginning with the rich-burn engine are summarized.

  13. Versatile, fuel-powered active gas mask or room air purifier Paul D. Ronney, Department of Aerospace and Mechanical Engineering

    E-Print Network [OSTI]

    mixtures much leaner than the conventional lean flammability limit. The most effective configuration, Weinberg demonstrated steady burning with mixtures 5 times less fuel than the lean limit of conventional. · Shelf life. Hydrocarbons have virtually unlimited shelf life compared to batteries. · Integrated

  14. Effects of radiation and compression on propagating spherical flames of methane/air mixtures near the lean flammability limit

    SciTech Connect (OSTI)

    Chen, Zheng [State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 (China)

    2010-12-15T23:59:59.000Z

    Large discrepancies between the laminar flame speeds and Markstein lengths measured in experiments and those predicted by simulations for ultra-lean methane/air mixtures bring a great concern for kinetic mechanism validation. In order to quantitatively explain these discrepancies, a computational study is performed for propagating spherical flames of lean methane/air mixtures in different spherical chambers using different radiation models. The emphasis is focused on the effects of radiation and compression. It is found that the spherical flame propagation speed is greatly reduced by the coupling between thermal effect (change of flame temperature or unburned gas temperature) and flow effect (inward flow of burned gas) induced by radiation and/or compression. As a result, for methane/air mixtures near the lean flammability limit, the radiation and compression cause large amounts of under-prediction of the laminar flame speeds and Markstein lengths extracted from propagating spherical flames. Since radiation and compression both exist in the experiments on ultra-lean methane/air mixtures reported in the literature, the measured laminar flame speeds and Markstein lengths are much lower than results from simulation and thus cannot be used for kinetic mechanism validation. (author)

  15. Pollution Prevention and Lean Manufacturing Paper # 360

    E-Print Network [OSTI]

    Pollution Prevention and Lean Manufacturing Paper # 360 Harry W. Edwards and Jason M. Jonkman, the CSU IAC promotes energy conservation, pollution prevention, and productivity improvement. During that generated a total of 467 assessment recommendations (ARs) with pollution prevention benefits. Such benefits

  16. Ripple burn control

    SciTech Connect (OSTI)

    Bhadra, D.K.; Petrie, T.W.; Peuron, U.A.; Rawls, J.M.

    1980-05-01T23:59:59.000Z

    The ripple contribution to the ion thermal conductivity is ideally suited in magnitude, temperature dependence, and spatial dependence to serve as a burn control mechanism. Furthermore, a considerable measure of automatic burn control results because of the radial shift of the plasma to a region of higher ripple. Unfortunately, the window in ripple values consistent with both ignition and a burn equilibrium is uncomfortably narrow, given the current lack of contact between the theoretical models of ripple transport and experimental observations. A survey is made of the techniques to vary the ripple and thus broaden the design window. One new technique is discussed in some detail: the use of ferromagnetic materials in the shield with magnetic properties which are sensitive functions of the operating temperature.

  17. 7, 1733917366, 2007 Biomass burning

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA wet season experiment C. H. Mari a Creative Commons License. Atmospheric Chemistry and Physics Discussions Tracing biomass burning plumes from. Mari (marc@aero.obs-mip.fr) 17339 #12;ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA

  18. 13, 3226932289, 2013 Biomass burning

    E-Print Network [OSTI]

    Dong, Xiquan

    ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern Great Plains T (ACP). Please refer to the corresponding final paper in ACP if available. Biomass burning aerosol Geosciences Union. 32269 #12;ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern

  19. Integrating Energy Management and Lean Manufacturing

    E-Print Network [OSTI]

    Stocki, M.

    Reduced Building Energy through Lean Case Study Facility floor space typically must be heated, ventilated, and illuminated. When space runs outs, a facility usually looks to expand by adding floor space. A farm equipment manufacturer was facing just... Procedures to optimize operational and production tasks ? Encouraging energy efficiency through the use of Visual Dashboards (sample in Figure 3). ? Root cause analysis to determine the underlying causes (and possible solutions) of energy wastes in a...

  20. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Kwok, Doris; Boucher, Cheryl

    2009-09-30T23:59:59.000Z

    Energy independence and fuel savings are hallmarks of the nation’s energy strategy. The advancement of natural gas reciprocating engine power generation technology is critical to the nation’s future. A new engine platform that meets the efficiency, emissions, fuel flexibility, cost and reliability/maintainability targets will enable American manufacturers to have highly competitive products that provide substantial environmental and economic benefits in the US and in international markets. Along with Cummins and Waukesha, Caterpillar participated in a multiyear cooperative agreement with the Department of Energy to create a 50% efficiency natural gas powered reciprocating engine system with a 95% reduction in NOx emissions by the year 2013. This platform developed under this agreement will be a significant contributor to the US energy strategy and will enable gas engine technology to remain a highly competitive choice, meeting customer cost of electricity targets, and regulatory environmental standard. Engine development under the Advanced Reciprocating Engine System (ARES) program was divided into phases, with the ultimate goal being approached in a series of incremental steps. This incremental approach would promote the commercialization of ARES technologies as soon as they emerged from development and would provide a technical and commercial foundation of later-developing technologies. Demonstrations of the Phase I and Phase II technology were completed in 2004 and 2008, respectively. Program tasks in Phase III included component and system development and testing from 2009-2012. Two advanced ignition technology evaluations were investigated under the ARES program: laser ignition and distributed ignition (DIGN). In collaboration with Colorado State University (CSU), a laser ignition system was developed to provide ignition at lean burn and high boost conditions. Much work has been performed in Caterpillar’s DIGN program under the ARES program. This work has consisted of both modeling and single cylinder engine experiments to quantify DIGN performance. The air handling systems of natural gas engines dissipate a percentage of available energy as a result of both flow losses and turbomachinery inefficiencies. An analytical study was initiated to increase compressor efficiency by employing a 2-stage inter-cooled compressor. Caterpillar also studied a turbo-compound system that employs a power turbine to recover energy from the exhaust gases for improved engine efficiency. Several other component and system investigations were undertaken during the final phase of the program to reach the ultimate ARES goals. An intake valve actuation system was developed and tested to improve engine efficiency, durability and load acceptance. Analytical modeling and materials testing were performed to evaluate the performance of steel pistons and compacted graphite iron cylinder head. Effort was made to improve the detonation sensing system by studying and comparing the performance of different pressure sensors. To reduce unburned hydrocarbon emissions, different camshafts were designed and built to investigate the effect of exhaust valve opening timing and value overlap. 1-D & 3-D coupled simulation was used to study intake and exhaust manifold dynamics with the goal of reducing load in-balance between cylinders. Selective catalytic reduction with on-board reductant generation to reduce NOx emissions was also engine tested. An effective mean to successfully deploy ARES technologies into the energy markets is to deploy demonstration projects in the field. In 2010, NETL and Caterpillar agreed to include a new “opportunity fuel” deliverable and two field demonstrations in the ARES program. An Organic Rankine Cycle system was designed with production intent incorporating lessons learned from the Phase II demonstration. Unfortunately, business conditions caused Caterpillar to cancel this demonstration in 2011. Nonetheless, Caterpillar partnered with a local dealer to deploy an ARES class engine using syngas from a biomass gasifier as

  1. Improving the Understanding of Intake and Charge Effects for Increasing RCCI Engine Efficiency

    SciTech Connect (OSTI)

    Splitter, Derek A [ORNL; Reitz, Rolf [University of Wisconsin; Wissink, martin [University of Wisconsin; DelVescovo, Dan [University of Wisconsin

    2014-01-01T23:59:59.000Z

    The present experimental engine efficiency study explores the effects of intake pressure and temperature, and premixed and global equivalence ratios on gross thermal efficiency (GTE) using the reactivity controlled compression ignition (RCCI) combustion strategy. Experiments were conducted in a heavy-duty single-cylinder engine at constant net load (IMEPn) of 8.45 bar, 1300 rev/min engine speed, with 0% EGR, and a 50% mass fraction burned combustion phasing (CA50) of 0.5 CA ATDC. The engine was port fueled with E85 for the low reactivity fuel and direct injected with 3.5% 2-ethylhexyl nitrate (EHN) doped into 91 anti-knock index (AKI) gasoline for the high-reactivity fuel. The resulting reactivity of the enhanced fuel corresponds to an AKI of approximately 56 and a cetane number of approximately 28. The engine was operated with a wide range of intake pressures and temperatures, and the ratio of low- to high-reactivity fuel was adjusted to maintain a fixed speed-phasing-load condition. This allowed for the investigation of several combinations of intake temperature, intake pressure, and charge stratification at otherwise constant thermodynamic conditions. The results show that sources of engine inefficiency compete as functions of premixed and global equivalence ratios. Losses are minimized through proper balancing of intake pressure and temperature, such that the global equivalence ratio ( global) is as lean as possible without overly lean regions of the stratified charge causing an increase in incomplete combustion. The explored speed-load-phasing combination shows that losses are minimized at conditions where approximately 2/3 of the fuel is fully premixed. The results exhibit a pathway for achieving simultaneous increases in combustion and fuel efficiency through proper fuel reactivity and initial condition management.

  2. Radial lean direct injection burner

    DOE Patents [OSTI]

    Khan, Abdul Rafey; Kraemer, Gilbert Otto; Stevenson, Christian Xavier

    2012-09-04T23:59:59.000Z

    A burner for use in a gas turbine engine includes a burner tube having an inlet end and an outlet end; a plurality of air passages extending axially in the burner tube configured to convey air flows from the inlet end to the outlet end; a plurality of fuel passages extending axially along the burner tube and spaced around the plurality of air passage configured to convey fuel from the inlet end to the outlet end; and a radial air swirler provided at the outlet end configured to direct the air flows radially toward the outlet end and impart swirl to the air flows. The radial air swirler includes a plurality of vanes to direct and swirl the air flows and an end plate. The end plate includes a plurality of fuel injection holes to inject the fuel radially into the swirling air flows. A method of mixing air and fuel in a burner of a gas turbine is also provided. The burner includes a burner tube including an inlet end, an outlet end, a plurality of axial air passages, and a plurality of axial fuel passages. The method includes introducing an air flow into the air passages at the inlet end; introducing a fuel into fuel passages; swirling the air flow at the outlet end; and radially injecting the fuel into the swirling air flow.

  3. Quantifying Energy Savings from Lean Manufacturing Productivity Increases

    E-Print Network [OSTI]

    Seryak, J.; Epstein, G.; D'Antonio, M.

    2006-01-01T23:59:59.000Z

    from existing use due to additional equipment or operating hours. Alternately, in the post-event scenario, Lean Manufacturing techniques enable production gains without increasing operating hours or adding manufacturing equipment. Hence.... The Lean Manufacturing techniques listed above improve productivity in several ways, which may or may not have impacts on energy use. Additionally, Lean Manufacturing techniques can also improve energy use in ways that have no relation to productivity...

  4. Lean Six Sigma iSO 9001:2000

    E-Print Network [OSTI]

    Asaithambi, Asai

    Six Sigma Lean Six Sigma iSO 9001:2000 Lean buSineSS prOceSSeS imprOvement tOOLS StatiSticaL meth ·ISO/TS16949 ·ISO14001EMS ·MalcolmBaldrigeNational Quality Award Statistical Methods ·Statistical program implementation as wellasafullrangeofLeanSixSigma andSixSigmaservices. Our prOFeSSiOnaL StaFF can iSO

  5. Design of a viable homogeneous-charge compression-ignition (HCCI) engine : a computational study with detailed chemical kinetics

    E-Print Network [OSTI]

    Yelvington, Paul E., 1977-

    2005-01-01T23:59:59.000Z

    The homogeneous-charge compression-ignition (HCCI) engine is a novel engine technology with the potential to substantially lower emissions from automotive sources. HCCI engines use lean-premixed combustion to achieve good ...

  6. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    Emission Control Catalysts Three-Dimensional Composite Nanostructures for Lean NOx Emission Control Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic Catalysts...

  7. Three-Dimensional Composite Nanostructures for Lean NOx Emission...

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

    Documents & Publications Monolithic Metal Oxide based Composite Nanowire Lean NOx Emission Control Catalysts Ultra-efficient, Robust and Well-defined Nano-Array based Monolithic...

  8. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace063smith2011o.pdf More Documents & Publications Lean Gasoline System Development for Fuel...

  9. Lean Gasoline System Development for Fuel Efficient Small Car...

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

    and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ace063smith2013o.pdf More Documents & Publications Lean Gasoline System Development for Fuel...

  10. Transitioning to a Lean Enterprise: A Guide for Leaders, Volume III, Roadmap Explorations

    E-Print Network [OSTI]

    Bozdogan, Kirk

    2000-01-01T23:59:59.000Z

    Volume III of this guide may be used as an in-depth reference source for acquiring deep knowledge about many of the aspects of transitioning to lean. Lean change agents and lean implementation leaders should find this ...

  11. Lean Implementation Considerations in Factory Operations of Low Volume/High Complexity Production Systems

    E-Print Network [OSTI]

    Shields, Thomas J.

    The researchers of the Lean Aircraft Initiative developed a hypothesized lean implementation model seeking to provide its members guidance on implementing lean transitions in factory operations of low volume/high complexity ...

  12. UTC for Computational Engineering Moresh Wankhede, Neil Bressloff and Andy Keane, CEDG, School of Engineering Sciences

    E-Print Network [OSTI]

    Sóbester, András

    -Kriging based design optimisation methodology for a lean burn combustor Introduction Combustor model and reactive flow-field Figure 1. Computational domain of the combustor (All dimensions in mm) Figure 1 shows the computational domain of the combustor with cooling holes near the outlet. The combustor consists of a profiled

  13. Systematic evaluation of monometallic catalytic materials for lean-burn NOx reduction using combinatorial methods

    E-Print Network [OSTI]

    Senkan, Selim M.

    of the major reasons for this lack of progress has been the absence of a systematic and organized data base, Box 951592, Los Angeles, CA 90095, USA Available online 2 November 2004 Abstract A library of about of the lack of progress in this approach, efforts were directed towards developing SCR-based technologies

  14. Vehicle Technologies Office Merit Review 2015: Next-generation Ultra-Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

    Presentation given by MAHLE Powertrain LLC at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next-generation ultra...

  15. Vehicle Technologies Office Merit Review 2014: Next-Generation Ultra Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

    Presentation given by MAHLE Powertrain, LLC at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next-generation ultra...

  16. Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI

    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: Theof Energy Change RequestFirstchampions,Department of Energy

  17. Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions | Department

    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:RevisedAdvisoryStandardGeneration |10 DOEGoals DuringMarkets - EAC 2011Valveof

  18. A University Consortium on Efficient and Clean High-Pressure, Lean Burn

    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: The Future of1 A Strategic Framework for SMR DeploymentCommunities (FactA

  19. A University Consortium on Efficient and Clean High-Pressure, Lean Burn

    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: The Future of1 A Strategic Framework for SMR DeploymentCommunities (FactA(HPLB)

  20. A University Consortium on Efficient and Clean High-Pressure, Lean Burn

    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: The Future of1 A Strategic Framework for SMR DeploymentCommunities

  1. Advanced Lean-Burn DI Spark Ignition Fuels Research | 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: The Future of1 AAcceleratedDepartment of Energy LWR Nuclear Fuel2 DOE Hydrogen

  2. Advanced Lean-Burn DI Spark Ignition Fuels Research | 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: The Future of1 AAcceleratedDepartment of Energy LWR Nuclear Fuel2 DOE

  3. Advanced Lean-Burn DI Spark Ignition Fuels Research | 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: The Future of1 AAcceleratedDepartment of Energy LWR Nuclear Fuel2 DOE10 DOE

  4. Advanced Lean-Burn DI Spark Ignition Fuels Research | 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: The Future of1 AAcceleratedDepartment of Energy LWR Nuclear Fuel2 DOE10 DOE09

  5. Synergies of High-Efficiency Clean Combustion and Lean NOx Trap...

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

    Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts Synergies of High-Efficiency Clean Combustion and Lean NOx Trap Catalysts investigation of potential...

  6. The role of lean manufacturing principles and strategic alternatives in achieving business goals

    E-Print Network [OSTI]

    Ramaswamy, Dhananjay

    2006-01-01T23:59:59.000Z

    Lean Manufacturing is widely accepted as a proven method to achieve operational excellence. Many manufacturers undertake lean manufacturing implementations as a strategy to improve competitiveness and realize business ...

  7. PDF Modeling of Turbulent Lean Premixed Combustion

    SciTech Connect (OSTI)

    Yilmaz, S.L.; •Givi, P.; Strakey, P.A.

    2007-10-01T23:59:59.000Z

    The joint velocity-scalar-frequency probability density function (PDF) methodology is employed for prediction of a bluff-body stabilized lean premixed methane-air flame. A reduced mechanism with CO and NO chemistry is used to describe fuel oxidation. The predicted mean and rms values of the velocity, temperature and concentrations of major and minor species are compared with laboratory measurements. This technical effort was performed in support of the National Energy Technology Laboratory’s on-going research in “Assessment of Turbo-Chemistry Models for Gas Turbine Combustion Emissions” under the RDS contract DE-AC26-04NT41817.

  8. Lean Flame Stabilization Ring - Energy Innovation Portal

    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 PowerCherries 82981-1cnHigh SchoolIn12electron 9 5 -of EnergyLeadership Leadership|Lean Flame

  9. Argonne National Laboratory's Omnivorous Engine

    ScienceCinema (OSTI)

    Thomas Wallner

    2010-01-08T23:59:59.000Z

    Why can't an engine run on any fuel? Argonne is designing an omnivorous engine that can run on any blend of gasoline, ethanol or butanol?and calibrate itself to burn that fuel most efficiently.

  10. Environmental impact of offshore operation reduced using innovative engineering solutions

    SciTech Connect (OSTI)

    Ritchie, C.J.; Wensel, E.A.; Edelblum, L.S.; Beal, D.

    1994-12-31T23:59:59.000Z

    The North Dauphin Island Tract 73 platform is located in eleven feet (3.4 m) of water and one mile (1.6 km) from shore in Mobile Bay, Alabama. The platform is designed to dehydrate and compress up to 70 MMSCFD (1.98 x 10{sup 6} SM{sup 3}) from five remote gas production wells. Located near the city of Mobile, Alabama, the surrounding metropolitan and coastal areas has multiple uses including manufacturing, tourism, commercial and sport fishing, and wetlands and wildlife conservation. The multiple and interdependent economic uses of the area required that the platform be designed to minimize any adverse environmental impact. A cost-effective environmental engineering solution was desired at the design phase of the project. A water catchment, containment and disposal system was designed to meet the zero discharge requirement. Pollution from air emissions was reduced by the installation of lean burning engines. A floatover installation process was used to prevent dredging of the bay, thus protecting the bay water quality. An aesthetically concealing paint and lighting scheme was chosen and applied to the entire structure. These cost-effective engineering solutions during the design phase of the project saved time and money over the life of the project. All regulatory permits were obtained in a timely manner, with little or no opposition. The operator of the North Dauphin Island Development won several environmental awards due to the implementation of innovative solutions and their commitment to conservation of the natural environment.

  11. Assessment of an Industrial Wet Oxidation System for Burning Waste and Low-Grade Fuels 

    E-Print Network [OSTI]

    Bettinger, J.; Koppel, P.; Margulies, A.

    1988-01-01T23:59:59.000Z

    "Stone & Webster Engineering Corporation, under Department of Energy sponsorship, is developing a wet oxidation system to generate steam for industrial processes by burning industrial waste materials and low-grade fuels. The program involves...

  12. Advanced engine management of individual cylinders for control of exhaust species

    DOE Patents [OSTI]

    Graves, Ronald L [Knoxville, TN; West, Brian H [Knoxville, TN; Huff, Shean P [Knoxville, TN; Parks, II, James E

    2008-12-30T23:59:59.000Z

    A method and system controls engine-out exhaust species of a combustion engine having a plurality of cylinders. The method typically includes various combinations of steps such as controlling combustion parameters in individual cylinders, grouping the individual cylinders into a lean set and a rich set of one or more cylinders, combusting the lean set in a lean combustion parameter condition having a lean air:fuel equivalence ratio, combusting the rich set in a rich combustion parameter condition having a rich air:fuel equivalence ratio, and adjusting the lean set and the rich set of one or more cylinders to generate net-lean combustion. The exhaust species may have elevated concentrations of hydrogen and oxygen.

  13. Why Lean ?y ( QC TQC 5-7 KPI Competency HA-SHA KM

    E-Print Network [OSTI]

    Laksanacharoen, Sathaporn

    ­ Jidoka) 4. (Kaizen ­ Continuous Improvement) etc. #12;Why lean Thinking in Healthcare ? 1. 80 : 80

  14. Retour d'exprience sur la mise en place du Lean dans un centre de Radiothrapie

    E-Print Network [OSTI]

    Boyer, Edmond

    Lean management ont été utilisés et adoptés par un centre de radiothérapie français pour améliorer son déploiement du Lean en santé. Mots clés : Lean Management, efficience des soins, radiothérapie, chantier classiques : le Lean management, au-delà de l'amélioration de l'efficience opérationnelle, doit contribuer à

  15. The use of reduced-moderation light water reactors for transuranic isotope burning in thorium fuel

    E-Print Network [OSTI]

    Lindley, Benjamin A.

    2015-02-03T23:59:59.000Z

    THE USE OF REDUCED-MODERATION LIGHT WATER REACTORS FOR TRANSURANIC ISOTOPE BURNING IN THORIUM FUEL Benjamin Andrew Lindley St Catharine?s College Department of Engineering University of Cambridge A thesis... of Engineering as stated in the Memorandum to Graduate Students. Benjamin Andrew Lindley The Use of Reduced-moderation Light Water Reactors for Transuranic Isotope Burning in Thorium Fuel B. A. Lindley Light water reactors (LWRs) are the world...

  16. ENGINEERING

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

    ENGINEERING the Future of ENERGY Regional University Alliance National Energy Technology Laboratory Office of Research and Development The Future of Energy The time to redraw...

  17. Molecular Characterization of Biomass Burning Aerosols Using...

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

    Biomass Burning Aerosols Using High Resolution Mass Spectrometry. Molecular Characterization of Biomass Burning Aerosols Using High Resolution Mass Spectrometry. Abstract: Chemical...

  18. Lean-NOx Catalyst Development for Diesel Engine Applications

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

    NO, C 3 H 6 , O 2 , H 2 O In 2 O 3 SiO 2 Alumina GCMS Acetaldehyde (CH 3 CHO) Acrolein (CH 2 CH-CHO) No N 2 produced In 2 O 3 SiO 2 Alumina GCMS Feed Gas NO, C 3 H 6...

  19. Efficient Emissions Control for Multi-Mode Lean DI Engines

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

    for more info on RCCI concept Gasoline Tank Air Exhaust Air HXN Exhaust HXN EGR HXN Turbo Fuel Rail Fuel Pump Fuel Pressure Regulator DRIVVEN Control Conventional Diesel RCCI...

  20. Lean-NOx Catalyst Development for Diesel Engine Applications | Department

    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 YourTransport(FactDepartment ofLetter Report:40PMDepartment ofs o u t h e a s t| Department ofof

  1. Emissions Control for Lean Gasoline Engines | 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:RevisedAdvisoryStandard | Department ofEmily Knouse About Us Emily2 DOE Hydrogen

  2. Emissions Control for Lean Gasoline Engines | 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:RevisedAdvisoryStandard | Department ofEmily Knouse About Us Emily2 DOE Hydrogen1

  3. Emissions Control for Lean Gasoline Engines | 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:RevisedAdvisoryStandard | Department ofEmily Knouse About Us Emily2 DOE Hydrogen10

  4. Reductant Chemistry during LNT Regeneration for a Lean Gasoline Engine |

    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 ContaminationHubs+18, 2012Energy ReliabilityNewsEnergy Vehicle EmissionsDepartment

  5. A. Burns, A. Kusiak, and T. Letsche, Mining Transformed Data Sets, Proceedings of the 8th International Conference on Knowledge-Based Intelligent Information and Engineering Systems, M.Gh. Negoita, R.J.

    E-Print Network [OSTI]

    Kusiak, Andrew

    - fully applied to optimize efficiency of a circulating fluidized bed boiler at a lo- cal power plant for transforming data, for example: Arithmetic operators: (+, -, *, /) This method may involve arithmetic operatorsA. Burns, A. Kusiak, and T. Letsche, Mining Transformed Data Sets, Proceedings of the 8th

  6. Completion of the INEEL's WERF Incinerator Trial Burn

    SciTech Connect (OSTI)

    C. K. Branter; D. A. Conley; D. R. Moser; S. J. Corrigan

    1999-05-01T23:59:59.000Z

    This paper describes the successes and challenges associated with Resource Conservation and Recovery Act (RCRA) permitting of the Idaho National Engineering and Environmental Laboratory's (INEEL) Waste Experimental Reduction Facility (WERF) hazardous and mixed waste incinerator. Topics to be discussed include facility modifications and problems, trial burn results and lessons learned in each of these areas. In addition, a number of challenges remain including completion and final issue of the RCRA Permit and implementation of all the permit requirements. Results from the trial burn demonstrated that the operating conditions and procedures will result in emissions that are satisfactorily protective of human health, the environment, and are in compliance with Federal and State regulations.

  7. Completion of the INEEL's WERF Incinerator Trial Burn

    SciTech Connect (OSTI)

    Branter, Curtis Keith; Conley, Dennis Allen; Corrigan, Shannon James; Moser, David Roy

    1999-05-01T23:59:59.000Z

    This paper describes the successes and challenges associated with Resource Conservation and Recovery Act (RCRA) permitting of the Idaho National Engineering and Environmental Laboratory's (INEEL) Waste Experimental Reduction Facility (WERF) hazardous and mixed waste incinerator. Topics to be discussed include facility modifications and problems, trial burn results and lessons learned in each of these areas. In addition, a number of challenges remain including completion and final issue of RCRA Permit and implementation of all the permit requirements. Results from the trial burn demonstrated that the operating conditions and procedures will result in emissions that are satisfactorily protective of human health, the environment, and are in compliance with Federal and State regulations.

  8. Application of Lean Management Principles to Election Systems

    E-Print Network [OSTI]

    Posner, Tomer

    Lean was first adopted as a management technique for improving results in manufacturing environments. It is based on the 5 principles of identifying the Value to be created, mapping the Value-Stream (incremental addition ...

  9. Application of lean management principles to election systems

    E-Print Network [OSTI]

    Posner, Tomer

    2006-01-01T23:59:59.000Z

    Lean was first adopted as a management technique for improving results in manufacturing environments. It is based on the 5 principles of identifying the Value to be created, mapping the Value-Stream (incremental addition ...

  10. Lean implementation across value stream in main rotor blade area

    E-Print Network [OSTI]

    Phoenix, Casey J. (Casey John)

    2007-01-01T23:59:59.000Z

    The primary goal for this project was to help expand the existing capability of Sikorsky's main rotor blade business from raw material (titanium) through final assembly. The project helped to facilitate the ongoing lean ...

  11. Summary Report: Systematic IPT Integration in Lean Development Programs

    E-Print Network [OSTI]

    Browning, Tyson R.

    This document provides a summary report of the M.I.T. Masters Thesis, "Systematic IPT Integration in Lean Development Programs" by Tyson R. Browning. These studies argue for the inclusion of program integration principles ...

  12. LEAN ENERGY ANALYSIS: IDENTIFYING, DISCOVERING AND TRACKING ENERGY SAVINGS POTENTIAL

    E-Print Network [OSTI]

    Kissock, Kelly

    and Fuel Cell Technologies Conference, Livonia, MI, Oct 11-13, 2004. 1 #12;For example, the anomaly, and for diagnostic purposes. Case study examples demonstrate the lean energy analysis method and its application

  13. Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities...

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

    Regeneration Selectivity Towards N2O -- Similarities and Differences Between H2, CO and C3H6 Reductants Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities and...

  14. Lean and agile software development : a case study

    E-Print Network [OSTI]

    Murray, Collin (Collin J.)

    2008-01-01T23:59:59.000Z

    This paper looks at agile and lean development transitions for organizations that formerly used the waterfall style of development. There has been lots written about the positive aspects of agile software development and ...

  15. Stakeholder analysis in the context of the lean enterprise

    E-Print Network [OSTI]

    Grossi, Ignacio, 1964-

    2003-01-01T23:59:59.000Z

    This thesis combines three different areas of study that are very active nowadays: Lean Enterprises, Stakeholder Theory, and Social Networks. Elements from these three research areas have been articulated to produce a ...

  16. Prioritization and integration of lean initiatives with theory of constraints

    E-Print Network [OSTI]

    Schwain, Kevin D. (Kevin Douglas), 1974-

    2004-01-01T23:59:59.000Z

    The principles of lean manufacturing have taken hold in a number of manufacturing firms as a means of achieving operational excellence through continuous improvement. Womack and Jones have suggested a generalized process ...

  17. Business expansion and lean transformation for helicopter blade shop

    E-Print Network [OSTI]

    Bar, S. Neil (Saumen Neil)

    2006-01-01T23:59:59.000Z

    Sikorsky Aircraft is undergoing a lean transformation as its helicopter blade line is relocated from Stratford to Site B. Value Stream Mapping is a vital tool to eliminate sources of waste in the existing blade shop and ...

  18. Implementing lean material management in an extended value stream

    E-Print Network [OSTI]

    Harper, Justin A., 1975-

    2007-01-01T23:59:59.000Z

    American Axle & Manufacturing, Inc. (AAM) is still in the process of transitioning to a culture of "lean manufacturing" as opposed to the current culture of "mass production". This thesis involved working with AAM employees ...

  19. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E.; Anderson, Brian L.; O'Brien, Kevin C.

    2011-11-01T23:59:59.000Z

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  20. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O'Brien, Kevin C. (San Ramon, CA)

    2006-05-09T23:59:59.000Z

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  1. Regimes Of Helium Burning

    E-Print Network [OSTI]

    F. X. Timmes; J. C. Niemeyer

    2000-05-16T23:59:59.000Z

    The burning regimes encountered by laminar deflagrations and ZND detonations propagating through helium-rich compositions in the presence of buoyancy-driven turbulence are analyzed. Particular attention is given to models of X-ray bursts which start with a thermonuclear runaway on the surface of a neutron star, and the thin shell helium instability of intermediate-mass stars. In the X-ray burst case, turbulent deflagrations propagating in the lateral or radial directions encounter a transition from the distributed regime to the flamlet regime at a density of 10^8 g cm^{-3}. In the radial direction, the purely laminar deflagration width is larger than the pressure scale height for densities smaller than 10^6 g cm^{-3}. Self-sustained laminar deflagrations travelling in the radial direction cannot exist below this density. Similarily, the planar ZND detonation width becomes larger than the pressure scale height at 10^7 g cm^{-3}, suggesting that a steady-state, self-sustained detonations cannot come into existance in the radial direction. In the thin helium shell case, turbulent deflagrations travelling in the lateral or radial directions encounter the distributed regime at densities below 10^7 g cm^{-3}, and the flamelet regime at larger densities. In the radial direction, the purely laminar deflagration width is larger than the pressure scale height for densities smaller than 10^4 g cm^{-3}, indicating that steady-state laminar deflagrations cannot form below this density. The planar ZND detonation width becomes larger than the pressure scale height at 5 10^4 g cm^{-3}, suggesting that steady-state, self-sustained detonations cannot come into existance in the radial direction.

  2. U.S. Department of Energy FreedomCar & Vehicle Technologies Program CARB Executive Order Exemption Process for a Hydrogen-fueled Internal Combustion engine Vehicle -- Status Report

    SciTech Connect (OSTI)

    Not Available

    2008-04-01T23:59:59.000Z

    The CARB Executive Order Exemption Process for a Hydrogen-fueled Internal Combustion Engine Vehicle was undertaken to define the requirements to achieve a California Air Resource Board Executive Order for a hydrogenfueled vehicle retrofit kit. A 2005 to 2006 General Motors Company Sierra/Chevrolet Silverado 1500HD pickup was assumed to be the build-from vehicle for the retrofit kit. The emissions demonstration was determined not to pose a significant hurdle due to the non-hydrocarbon-based fuel and lean-burn operation. However, significant work was determined to be necessary for Onboard Diagnostics Level II compliance. Therefore, it is recommended that an Experimental Permit be obtained from the California Air Resource Board to license and operate the vehicles for the durability of the demonstration in support of preparing a fully compliant and certifiable package that can be submitted.

  3. A University Consortium on Low Temperature Combustion (LTC) for...

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

    Consortium on Efficient and Clean High-Pressure, Lean Burn (HPLB) Engines A University Consortium on Low Temperature Combustion (LTC) for High Efficiency, Ultra-Low Emission...

  4. Effect of reductive treatments on Pt behavior and NOx storage...

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

    represent a promising approach to meet increasingly stringent NOx emission regulations on diesel and other lean-burn engines. Pt material properties, including dispersion and...

  5. Engines

    SciTech Connect (OSTI)

    Enga, B.E.

    1981-08-25T23:59:59.000Z

    This invention relates to Stirling engines and to improved methods of operation whereby catalytic oxidation of a major proportion of the fuel takes place in the external combustor. An external combustion unit of a Stirling engine comprises a catalytic combustor having a thermally stable and oxidation resistant monolith made from and/or carrying a catalytic material and including a multiplicity of flow paths for catalytic combustion of combustible gases and injected fuel. The use of a catalytic combustor in accordance with this invention enables a Stirling or other engine fitted therewith to be used in areas such as mines and underwater installations where conventional flame combustion is impracticable or is controlled by stringent regulations.

  6. Development and application of management tools within a high-mix, low-volume lean aerospace manufacturing environment

    E-Print Network [OSTI]

    McKenney, Kevin (Kevin Bryan), 1977-

    2005-01-01T23:59:59.000Z

    The design and implementation of a lean production system is a complex task requiring an intimate understanding of the fundamental lean principles. Much of the published lean literature is written at a high level of ...

  7. Hydrogen Burning on Magnetar Surfaces

    E-Print Network [OSTI]

    P. Chang; P. Arras; L. Bildsten

    2004-10-18T23:59:59.000Z

    We compute the rate of diffusive nuclear burning for hydrogen on the surface of a "magnetar" (Soft Gamma-Ray Repeater or Anomalous X-Ray Pulsar). We find that hydrogen at the photosphere will be burned on an extremely rapid timescale of hours to years, depending on composition of the underlying material. Improving on our previous studies, we explore the effect of a maximally thick "inert" helium layer, previously thought to slow down the burning rate. Since hydrogen diffuses faster in helium than through heavier elements, we find this helium buffer actually increases the burning rate for magnetars. We compute simple analytic scalings of the burning rate with temperature and magnetic field for a range of core temperature. We conclude that magnetar photospheres are very unlikely to contain hydrogen. This motivates theoretical work on heavy element atmospheres that are needed to measure effective temperature from the observed thermal emission and constrains models of AXPs that rely on magnetar cooling through thick light element envelopes.

  8. IGNITION IMPROVEMENT OF LEAN NATURAL GAS MIXTURES

    SciTech Connect (OSTI)

    Jason M. Keith

    2005-02-01T23:59:59.000Z

    This report describes work performed during a thirty month project which involves the production of dimethyl ether (DME) on-site for use as an ignition-improving additive in a compression-ignition natural gas engine. A single cylinder spark ignition engine was converted to compression ignition operation. The engine was then fully instrumented with a cylinder pressure transducer, crank shaft position sensor, airflow meter, natural gas mass flow sensor, and an exhaust temperature sensor. Finally, the engine was interfaced with a control system for pilot injection of DME. The engine testing is currently in progress. In addition, a one-pass process to form DME from natural gas was simulated with chemical processing software. Natural gas is reformed to synthesis gas (a mixture of hydrogen and carbon monoxide), converted into methanol, and finally to DME in three steps. Of additional benefit to the internal combustion engine, the offgas from the pilot process can be mixed with the main natural gas charge and is expected to improve engine performance. Furthermore, a one-pass pilot facility was constructed to produce 3.7 liters/hour (0.98 gallons/hour) DME from methanol in order to characterize the effluent DME solution and determine suitability for engine use. Successful production of DME led to an economic estimate of completing a full natural gas-to-DME pilot process. Additional experimental work in constructing a synthesis gas to methanol reactor is in progress. The overall recommendation from this work is that natural gas to DME is not a suitable pathway to improved natural gas engine performance. The major reasons are difficulties in handling DME for pilot injection and the large capital costs associated with DME production from natural gas.

  9. 16.660 / 16.853 / ESD.62J Introduction to Lean Six Sigma Methods, January IAP 2008

    E-Print Network [OSTI]

    Murman, Earll

    2008-01-01T23:59:59.000Z

    This course introduces the fundamental Lean Six Sigma principles that underlay modern continuous improvement approaches for industry, government and other organizations. Lean emerged from the Japanese automotive industry, ...

  10. Combining Low-Temperature Combustion with Lean-NOx Trap Yields...

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

    Low-Temperature Combustion with Lean-NOx Trap Yields Progress Toward Targets of Efficient NOx Control for Diesels Combining Low-Temperature Combustion with Lean-NOx Trap Yields...

  11. 16.852J / ESD.61J Integrating The Lean Enterprise, Fall 2002

    E-Print Network [OSTI]

    Nightingale, Deborah J.

    Addresses some of the important issues involved with the planning, development, and implementation of lean enterprises. People, technology, process, and management dimensions of an effective lean manufacturing company are ...

  12. Transitioning to a Lean Enterprise: A Guide for Leaders, Volume I, Executive Overview

    E-Print Network [OSTI]

    Mize, Joe

    2000-01-01T23:59:59.000Z

    This Transition-To-Lean Guide is intended to help your enterprise leadership navigate your enterprise’s challenging journey into the promising world of “lean.” You have opened this guide because, in some fashion, you have ...

  13. Lean Enterprise Self Assessment Tool Version 1.0, Facilitator's Guide

    E-Print Network [OSTI]

    Lean Advancement Initiative

    This manual is intended for product development (PD) personnel working on improving their own processes, and the lean change agents working with them. Its aim is to provide practical guidance for applying lean concepts to ...

  14. Lean effectiveness model for products and services : servicing existing systems in aerospace and technology

    E-Print Network [OSTI]

    Srivastava, Tina Prabha

    2012-01-01T23:59:59.000Z

    Enterprises undergo transformation for more efficient and effective performance and growth. The Lean Enterprise Self Assessment Tool (LESAT) is a product of the Lean Advancement Initiative (LAI) and the Massachusetts ...

  15. Approaches To Crisis Prevention In Lean Product Development By High Performance Teams And Through Risk Management

    E-Print Network [OSTI]

    Oehmen, Josef

    This thesis investigates crisis prevention in lean product development, focusing on high performance teams and risk management methods.

  16. Engineering

    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 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeeches Energy Speeches RSS June 25,Engineering

  17. Engineering

    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, 2000Consumption SurveyEnergyphysicist Dave JohnsonEngineering

  18. Characteristics of Pt-K/MgAl2O4 lean NOx trap catalysts. | EMSL

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

    Pt-KMgAl2O4 lean NOx trap catalysts. Characteristics of Pt-KMgAl2O4 lean NOx trap catalysts. Abstract: We report the various characteristics of Pt-KMgAl2O4 lean NOx trap (LNT)...

  19. Lean Blow-Out Prediction in Gas Turbine Combustors Using Symbolic Time Series Analysis

    E-Print Network [OSTI]

    Ray, Asok

    Lean Blow-Out Prediction in Gas Turbine Combustors Using Symbolic Time Series Analysis Achintya of lean blowout in gas turbine combustors based on symbolic analysis of time series data from optical. For the purpose of detecting lean blowout in gas turbine combustors, the state probability vector obtained

  20. Sun Life Financial announces McLean Budden will become a subsidiary of MFS Investment Management

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Sun Life Financial announces McLean Budden will become a subsidiary of MFS Investment Management Earlier today, Sun Life Financial announced that McLean Budden will become a subsidiary of MFS InvestmentLean Budden funds offered through Sun Life Financial's Core Investment Selection. There are no immediate

  1. FROM YEARNING TO BURNING Marshall Rosenbluth

    E-Print Network [OSTI]

    experiment. It is there that we confront the unresolved issues of transport scaling, self-heating, burn

  2. Proceedings of ASME 2012 Internal Combustion Engine Division Spring Technical Conference May 69, 2012, Torino, Piemonte, Italy

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    - CYLINDER HCCI ENGINE WITH HIGH RESIDUALS Erik Hellstr¨om, Jacob Larimore, and Anna Stefanopoulou University ABSTRACT Cyclic variability (CV) in lean HCCI combustion at the lim- its of operation is a known phenomenon of lean HCCI operation with negative valve overlap (nvo). A com- bustion analysis method that estimates

  3. Systems and methods for controlling diesel engine emissions

    DOE Patents [OSTI]

    Webb, Cynthia Chaffin; Weber, Phillip Anthony; Khair, Magdi K.

    2004-06-01T23:59:59.000Z

    Systems and methods for controlling diesel engine emissions, including, for example, oxides of nitrogen emissions, particulate matter emissions, and the like. The emission control system according to this invention is provided in the exhaust passageway of a diesel engine and includes a catalyst-based particulate filter; and first and second lean NO.sub.x trap systems coupled to the catalyst-based particulate filter. The first and second lean NO.sub.x trap systems are arranged in a parallel flow configuration with each other. Each of the first and second lean NO.sub.x trap systems include a carbon monoxide generating catalyst device, a sulfur trap device, a lean NO.sub.x device, a supplemental fuel injector device, and a plurality of flow diverter devices.

  4. Chair: Christian M. Lastoskie Associate Professor, Civil & Environmental Engineering

    E-Print Network [OSTI]

    Kamat, Vineet R.

    electricity generated from natural gas combined cycle (NGCC) power plants; compressed natural gas vehicles (CNGVs), which are internal combustion engine vehicles (ICEVs) modified to burn compressed natural gas

  5. The Leaning Tower illusion: a new illusion of perspectiveThe Leaning Tower illusion: a new illusion of perspective We would like to describe a new illusion of perspective that to our knowledge has

    E-Print Network [OSTI]

    Kingdom, Frederick A. A.

    The Leaning Tower illusion: a new illusion of perspectiveThe Leaning Tower illusion: a new illusion reported before. Figure 1 shows two images of the Leaning Tower of Pisa placed next to one another. One obtains a strong impression that the tower on the right leans more, as if photographed from a different

  6. Mineral Scavenger Hunt 1. CONTRIBUTOR'S NAME: Johnny MacLean

    E-Print Network [OSTI]

    Brewer, Carol

    Mineral Scavenger Hunt 1. CONTRIBUTOR'S NAME: Johnny MacLean 2. NAME OF INQUIRY: Mineral Scavenger from minerals? What are some objects in the classroom that come from minerals? What minerals did these objects come from? b. Ecological Theme(s): Minerals are the building blocks of rocks. Rocks

  7. Lean Supply Chain Management Value Stream Mapping & Logistics Costs Tracking

    E-Print Network [OSTI]

    Dalang, Robert C.

    Lean Supply Chain Management Value Stream Mapping & Logistics Costs Tracking Supply Chain (physical, informational, financial) in order to have better insight on the logistics costs and the transit Stream Mapping method. The analysis is mainly focused on the global logistics and the production planning

  8. LES of a Hydrogen-Enriched Lean Turbulent Premixed Flame

    E-Print Network [OSTI]

    Groth, Clinton P. T.

    LES of a Hydrogen-Enriched Lean Turbulent Premixed Flame Francisco E. Hern´andez-P´erez , Clinton the observed behaviour is examined. Hydrogen-hydrocarbon fuel blends appear to be a promising option to synergistically pave the way toward pure hydrogen-based combustion systems while alleviating green-house gas

  9. Towards an Integration of the Lean Enterprise System, Total Quality Management, Six Sigma and Related Enterprise Process Improvement Methods

    E-Print Network [OSTI]

    Bozdogan, Kirkor

    2010-08-05T23:59:59.000Z

    The lean enterprise system, total quality management, six sigma, theory of constraints, agile manufacturing,

  10. Engineering Engineering

    E-Print Network [OSTI]

    Maroncelli, Mark

    T A C T i N f O r M A T i O N #12;4 engineering is the profession in which a knowledge of advancedEngineering Engineering Technology & A T P E N N S T A T E 2 0 1 0 ­ 2 0 1 1 #12;2 Join us at penn state! Since 1896, Penn State has been a leader in engineering and engineering technology education

  11. Simultaneous measurement of the surface temperature and the release of atomic sodium from a burning black liquor droplet

    SciTech Connect (OSTI)

    Saw, Woei L.; Nathan, Graham J. [Centre for Energy Technology, The University of Adelaide, SA 5006 (Australia); School of Mechanical Engineering, The University of Adelaide (Australia); Ashman, Peter J.; Alwahabi, Zeyad T. [Centre for Energy Technology, The University of Adelaide, SA 5006 (Australia); School of Chemical Engineering, The University of Adelaide (Australia); Hupa, Mikko [Process Chemistry Centre, Aabo Akademi, Biskopsgatan 8 FI-20500 Aabo (Finland)

    2010-04-15T23:59:59.000Z

    Simultaneous measurement of the concentration of released atomic sodium, swelling, surface and internal temperature of a burning black liquor droplet under a fuel lean and rich condition has been demonstrated. Two-dimensional two-colour optical pyrometry was employed to determine the distribution of surface temperature and swelling of a burning black liquor droplet while planar laser-induced fluorescence (PLIF) was used to assess the temporal release of atomic sodium. The key findings of these studies are: (i) the concentration of atomic sodium released during the drying and devolatilisation stages was found to be correlated with the external surface area; and (ii) the insignificant presence of atomic sodium during the char consumption stage shows that sodium release is suppressed by the lower temperature and by the high CO{sub 2} content in and around the particle. (author)

  12. Burn

    E-Print Network [OSTI]

    Johnson, Vivian Kathleen

    2008-01-01T23:59:59.000Z

    goes, why do we yearn to hold on? Color is its own language and my only fluency. Light filters through trees, each ruby leaf holy, illuminated. Hummingbirds hover between fading lantana blossoms. A heron flies in mist over the pond. Bees buzz... settles in the room. After slides and scholarly descriptions of sarcophagi, ash chests, bodies placed in shrines and under slabs, cremations, inhumations, and urns, thin whispers speak of bridge and canasta, how many tables there were, will be...

  13. Cost-Effective Reciprocating Engine Emissions Control and Monitoring for E&P Field and Gathering Engines

    SciTech Connect (OSTI)

    Keith Hohn; Sarah R. Nuss-Warren

    2011-08-31T23:59:59.000Z

    This final report describes a project intended to identify, develop, test, and commercialize emissions control and monitoring technologies that can be implemented by E&P operators to significantly lower their cost of environmental compliance and expedite project permitting. Technologies were installed and tested in controlled laboratory situations and then installed and tested on field engines based on the recommendations of an industry-based steering committee, analysis of installed horsepower, analysis of available emissions control and monitoring technologies, and review of technology and market gaps. The industry-recognized solution for lean-burn engines, a low-emissions-retrofit including increased airflow and pre-combustion chambers, was found to successfully control engine emissions of oxides of nitrogen (NO{sub X}) and carbon monoxide (CO). However, the standard non-selective catalytic reduction (NSCR) system recognized by the industry was found to be unable to consistently control both NO{sub X} and CO emissions. The standard NSCR system was observed to produce emissions levels that changed dramatically on a day-to-day or even hour-to-hour basis. Because difficulties with this system seemed to be the result of exhaust gas oxygen (EGO) sensors that produced identical output for very different exhaust gas conditions, models were developed to describe the behavior of the EGO sensor and an alternative, the universal exhaust gas oxygen (UEGO) sensor. Meanwhile, an integrated NSCR system using an advanced, signal-conditioned UEGO sensor was tested and found to control both NO{sub X} and CO emissions. In conjunction with this project, advanced monitoring technologies, such as Ion Sense, and improved sensors for emissions control, such as the AFM1000+ have been developed and commercialized.

  14. SUBCHAPTER D. OUTDOOR BURNING Sec. 352.081. REGULATION OF OUTDOOR BURNING. (a) In this

    E-Print Network [OSTI]

    SUBCHAPTER D. OUTDOOR BURNING Sec. 352.081. REGULATION OF OUTDOOR BURNING. (a) In this section: (A) firefighter training; (B) public utility, natural gas pipeline, or mining operations; or (C

  15. Burn site groundwater interim measures work plan.

    SciTech Connect (OSTI)

    Witt, Jonathan L. (North Wind, Inc., Idaho Falls, ID); Hall, Kevin A. (North Wind, Inc., Idaho Falls, ID)

    2005-05-01T23:59:59.000Z

    This Work Plan identifies and outlines interim measures to address nitrate contamination in groundwater at the Burn Site, Sandia National Laboratories/New Mexico. The New Mexico Environment Department has required implementation of interim measures for nitrate-contaminated groundwater at the Burn Site. The purpose of interim measures is to prevent human or environmental exposure to nitrate-contaminated groundwater originating from the Burn Site. This Work Plan details a summary of current information about the Burn Site, interim measures activities for stabilization, and project management responsibilities to accomplish this purpose.

  16. Lean and ultralean stretched propane-air counterflow flames

    SciTech Connect (OSTI)

    Cheng, Zhongxian; Pitz, Robert W. [Mechanical Engineering Department, Vanderbilt University, Box 1592, Station B, Nashville, TN 37235 (United States); Wehrmeyer, Joseph A. [Aerospace Testing Alliance, Building 1099, Avenue C, Arnold Air Force Base, TN 37389 (United States)

    2006-06-15T23:59:59.000Z

    Stretched laminar flame structures for a wide range of C{sub 3}H{sub 8}-air mixtures vs hot products are investigated by laser-based diagnostics and numerical simulation. The hot products are produced by a lean H{sub 2}-air premixed flame. The effect of stretch rate and equivalence ratio on four groups of C{sub 3}H{sub 8}-air flame structures is studied in detail by Raman scattering measurements and by numerical calculations of the major species concentration and temperature profiles. The equivalence ratio, f, is varied from a near-stoichiometric condition (f=0.86) to the sublean limit (f=0.44) and the stretch rate varies from 90 s{sup -1} to near extinction. For most of these C{sub 3}H{sub 8}-air lean mixtures, hot products are needed to maintain the flame. The significant feature of these flames is the relatively low flame temperatures (1200-1800 K). For this temperature range, the predicted C{sub 3}H{sub 8}-air flame structure is sensitive to the specific chemical kinetic mechanism. Two types of flame structures (a lean self-propagating flame and a lean diffusion-controlled flame) are obtained based on the combined effect of stretch and equivalence ratio. Three different mechanisms, the M5 mechanism, the Optimized mechanism, and the San Diego mechanism, are chosen for the numerical simulations. None of the propane chemical mechanisms give good agreement with the data over the entire range of flame conditions. (author)

  17. Lean Enterprise Transformation in a Job Shop Environment

    E-Print Network [OSTI]

    McCarthy, Brian P.

    2006-12-15T23:59:59.000Z

    Provider project deliverables for the assessment phase were the following documents: (a) Business System Assessment, (b) Network/Hardware Assessment, and (c) Lean Enterprise Assessment. The Partner personnel provided the primary project manager... Plan Findings and Recommendations. 9 (3) The LET Project SOW assumptions and triple constraints that could potentially impact the overall project (a) scope, (b) time schedule, and (c) overall costs have been summarized. (4) The LET Leadership...

  18. Applying Lean Concepts to Waste Site Closure - 13137

    SciTech Connect (OSTI)

    Proctor, M.L. [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)

    2013-07-01T23:59:59.000Z

    Washington Closure Hanford (WCH) was selected by the U.S. Department of Energy, Richland Operations Office to manage the River Corridor Closure Project, a 10-year contract in which WCH will clean up 220 mi{sup 2} of contaminated land at the Hanford Site in Richland, Washington. In the summer of 2011, with Tri-Party (DOE-RL, Environmental Protection Agency and Washington State Department of Ecology) Agreement Milestones due at the end of the calendar year, standard work practices were challenged in regards to closure documentation development. The Lean process, a concept that maximizes customer value while minimizing waste, was introduced to WCH's Sample Design and Cleanup Verification organization with the intention of eliminating waste and maximizing efficiencies. The outcome of implementing Lean processes and concepts was impressive. It was determined that the number of non-value added steps far outnumbered the value added steps. Internal processing time, document size, and review times were all reduced significantly; relationships with the customer and the regulators were also improved; and collaborative working relationships with the Tri Parties have been strengthened by working together on Lean initiatives. (authors)

  19. Achieving Consistent Maximum Brake Torque with Varied Injection Timing in a DI Diesel Engine 

    E-Print Network [OSTI]

    Kroeger, Timothy H

    2013-09-19T23:59:59.000Z

    , revealing the premixed and diffusion burn fractions as well as important engine and exhaust design criteria such as maximum in-cylinder pressure and exhaust composition. These results are significant in diesel engine design because cheaper, lighter engines...

  20. Fuel effects in homogeneous charge compression ignition (HCCI) engines

    E-Print Network [OSTI]

    Angelos, John P. (John Phillip)

    2009-01-01T23:59:59.000Z

    Homogenous-charge, compression-ignition (HCCI) combustion is a new method of burning fuel in internal combustion (IC) engines. In an HCCI engine, the fuel and air are premixed prior to combustion, like in a spark-ignition ...

  1. High load limits of the controlled autoignition engine

    E-Print Network [OSTI]

    Wildman, Craig B. E. (Craig Bradley Edward), 1987-

    2009-01-01T23:59:59.000Z

    The controlled autoignition (CAI) engine is an engine concept that features very low soot and NOx emissions while achieving diesel-like efficiency. The CAI combustion process is characterized by a fast, volumetric burn of ...

  2. SYNCHRONIZATION OF COMBUSTION VARIATIONS IN A MULTI-CYLINDER SPARK IGNITION ENGINE

    E-Print Network [OSTI]

    Tennessee, University of

    and Engineering Science University of Tennessee Knoxville, TN 37996-2210 Francis T. Connolly Ford Motor Company may have significant implications for engine diagnostics and control. INTRODUCTION Fuel-lean operation of model is expected to be most useful for understanding general trends (e.g., for engine diag- nostics

  3. Lean Gasoline System Development for Fuel Efficient Small Car

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

    Powertrain Advanced Engineering This presentation does not contain any proprietary, confidential, or otherwise restricted information GM Powertrain Advanced Engineering This...

  4. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions...

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

    2002deeraardahl.pdf More Documents & Publications Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated Lean NOx Catalysis Selective reduction of NOx in...

  5. Lean Transformation in the U.S. Aerospace Industry: Appreciating Interdependent Social and Technical Systems

    E-Print Network [OSTI]

    CUTCHER-GERSHENFELD, JOEL

    2003-05-02T23:59:59.000Z

    Lean practices and principles build on a half-century of successive initiatives aimed at transforming social and technical systems in organizations. While they are send as ...

  6. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions...

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

    Lean NOx Catalysis l Chemistry l Reducing Agent Effects l Collaboration with LEP CRADA l Aging Studies Plasma Initiation - + Electron Avalanche e - e - e - e - e - e - e -...

  7. Robotics Science & Technology for Burning Plasma Experiments

    E-Print Network [OSTI]

    Robotics Science & Technology for Burning Plasma Experiments J. N. Herndon, T. W. Burgess, M. M, General Atomics, San Diego, California. #12;Robotics Challenges in Burning Plasma Experiments · Control x x x x x x earthmoving equipment electric robots Conventional Machines DMHP Machines x x x x

  8. Visualizing Buoyant Burning Bubbles in Type Ia Supernovae at...

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

    Burning in Supernovae Buoyant Burning Bubbles in Type Ia Supernovae bubble-s.jpeg Flame ignition in type Ia supernovae leads to isolated bubbles of burning buoyant fluid. As a...

  9. Reduction in biomass burning aerosol light absorption upon humidificat...

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

    in biomass burning aerosol light absorption upon humidification: Roles of inorganically-induced hygroscopicity, Reduction in biomass burning aerosol light absorption upon...

  10. actinide burning lead: Topics by E-print Network

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

    on the ignition and burn of ICF targets Mathematics Websites Summary: and burn of the thermonuclear fuel in inertial confinement fusion pellets at the ion kinetic level to...

  11. The Benefit of Lean Techniques Interfaced with Modular Construction

    E-Print Network [OSTI]

    Douthit, Colin

    2013-12-20T23:59:59.000Z

    to interview Marc Butler. He is the Owner of J.R. Butler, Inc., a glass and glazing contractor located in Denver, Colorado. J.R. Butler manufactures and installs unitized curtain wall. Marc is a valuable resource because he uses Lean principles in his... provides relief from the elements, wind, and dust. Also, the work is being done in an ergonomic position. When putting together glass curtain wall in the field the glazier is frequently in awkward positions that may lead to imperfect seals around...

  12. Be a Lean, Mean, Green Eating Machine | 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: The FutureComments fromofBatteries from Brine Batteries fromThermalBe a Lean,

  13. Fusion Ignition Research Experiment Engineering Status Report

    E-Print Network [OSTI]

    of the world. The FIRE web site has been chosen as a selection for the Scout Report for Science and EngineeringFusion Ignition Research Experiment -FIRE- Engineering Status Report For Fiscal Year 2000 Issued on the Fusion Ignition Research Experiment (FIRE), a tokamak designed for burning plasma research. Engineering

  14. Engineering Engineering

    E-Print Network [OSTI]

    Keinan, Alon

    of global poverty and sustainability". An ESW course, offered by Civil & Environmental Engineering, teaches as an alternative to diesel fuel, storm-water management in the Virgin Islands, and construction of a bridge here

  15. Physics Basis and Simulation of Burning Plasma Physics for the Fusion Ignition Research Experiment (FIRE)

    SciTech Connect (OSTI)

    C.E. Kessel; D. Meade; S.C. Jardin

    2002-01-18T23:59:59.000Z

    The FIRE [Fusion Ignition Research Experiment] design for a burning plasma experiment is described in terms of its physics basis and engineering features. Systems analysis indicates that the device has a wide operating space to accomplish its mission, both for the ELMing H-mode reference and the high bootstrap current/high beta advanced tokamak regimes. Simulations with 1.5D transport codes reported here both confirm and constrain the systems projections. Experimental and theoretical results are used to establish the basis for successful burning plasma experiments in FIRE.

  16. Design and Production Interface in Lean Production: A Performance Improvement Criteria Proposition Proceedings IGLC `98

    E-Print Network [OSTI]

    Tommelein, Iris D.

    Design and Production Interface in Lean Production: A Performance Improvement Criteria Proposition Proceedings IGLC `98 DESIGN AND PRODUCTION INTERFACE IN LEAN PRODUCTION: A PERFORMANCE IMPROVEMENT CRITERIA PROPOSITION Eduardo L. Isatto1 and Carlos T. Formoso2 ABSTRACT Failures on transferring Japanese production

  17. Applicability of Logistics Management in Lean Construction: a Case Study Approach in Brazilian Building Companies

    E-Print Network [OSTI]

    Tommelein, Iris D.

    Applicability of Logistics Management in Lean Construction: a Case Study Approach in Brazilian Building Companies Proceedings IGLC-7 147 APPLICABILITY OF LOGISTICS MANAGEMENT IN LEAN CONSTRUCTION Cardoso2 ABSTRACT Logistics management concepts and tools currently have a great value for several

  18. The U.S. Burning Plasma Program C.M. Greenfield

    E-Print Network [OSTI]

    for burning plasma research ­ US Burning Plasma Organization (created 2005): currently 283 registered members

  19. Interactive simulation of fire, burn and decomposition

    E-Print Network [OSTI]

    Melek, Zeki

    2009-05-15T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . 86 35 Simulation control in action. . . . . . . . . . . . . . . . . . . . . . . . 89 36 Burning a log and a Siggraph logo. . . . . . . . . . . . . . . . . . . . 95 37 Two sets of quadrilateral stacks are used for different camera angles. 97 38...

  20. Interactive simulation of fire, burn and decomposition

    E-Print Network [OSTI]

    Melek, Zeki

    2008-10-10T23:59:59.000Z

    . . . . . . . . . . . . . . . . . . . . . . 86 35 Simulation control in action. . . . . . . . . . . . . . . . . . . . . . . . 89 36 Burning a log and a Siggraph logo. . . . . . . . . . . . . . . . . . . . 95 37 Two sets of quadrilateral stacks are used for different camera angles. 97 38...

  1. Industrial Gas Turbine Engine Catalytic Pilot Combustor-Prototype Testing

    SciTech Connect (OSTI)

    Shahrokh Etemad; Benjamin Baird; Sandeep Alavandi; William Pfefferle

    2009-09-30T23:59:59.000Z

    PCI has developed and demonstrated its Rich Catalytic Lean-burn (RCL®) technology for industrial and utility gas turbines to meet DOEâ??s goals of low single digit emissions. The technology offers stable combustion with extended turndown allowing ultra-low emissions without the cost of exhaust after-treatment and further increasing overall efficiency (avoidance of after-treatment losses). The objective of the work was to develop and demonstrate emission benefits of the catalytic technology to meet strict emissions regulations. Two different applications of the RCL® concept were demonstrated: RCL® catalytic pilot and Full RCL®. The RCL® catalytic pilot was designed to replace the existing pilot (a typical source of high NOx production) in the existing Dry Low NOx (DLN) injector, providing benefit of catalytic combustion while minimizing engine modification. This report discusses the development and single injector and engine testing of a set of T70 injectors equipped with RCL® pilots for natural gas applications. The overall (catalytic pilot plus main injector) program NOx target of less than 5 ppm (corrected to 15% oxygen) was achieved in the T70 engine for the complete set of conditions with engine CO emissions less than 10 ppm. Combustor acoustics were low (at or below 0.1 psi RMS) during testing. The RCL® catalytic pilot supported engine startup and shutdown process without major modification of existing engine controls. During high pressure testing, the catalytic pilot showed no incidence of flashback or autoignition while operating over a wide range of flame temperatures. In applications where lower NOx production is required (i.e. less than 3 ppm), in parallel, a Full RCL® combustor was developed that replaces the existing DLN injector providing potential for maximum emissions reduction. This concept was tested at industrial gas turbine conditions in a Solar Turbines, Incorporated high-pressure (17 atm.) combustion rig and in a modified Solar Turbines, Incorporated Saturn engine rig. High pressure single-injector rig and modified engine rig tests demonstrated NOx less than 2 ppm and CO less than 10 ppm over a wide flame temperature operating regime with low combustion noise (<0.15% peak-to-peak). Minimum NOx for the optimized engine retrofit Full RCL® designs was less than 1 ppm with CO emissions less than 10 ppm. Durability testing of the substrate and catalyst material was successfully demonstrated at pressure and temperature showing long term stable performance of the catalytic reactor element. Stable performance of the reactor element was achieved when subjected to durability tests (>5000 hours) at simulated engine conditions (P=15 atm, Tin=400C/750F.). Cyclic tests simulating engine trips was also demonstrated for catalyst reliability. In addition to catalyst tests, substrate oxidation testing was also performed for downselected substrate candidates for over 25,000 hours. At the end of the program, an RCL® catalytic pilot system has been developed and demonstrated to produce NOx emissions of less than 3 ppm (corrected to 15% O2) for 100% and 50% load operation in a production engine operating on natural gas. In addition, a Full RCL® combustor has been designed and demonstrated less than 2 ppm NOx (with potential to achieve 1 ppm) in single injector and modified engine testing. The catalyst/substrate combination has been shown to be stable up to 5500 hrs in simulated engine conditions.

  2. ELMs and the Performance of Burning Plasma Experiments

    E-Print Network [OSTI]

    International Institute of Tech., Pathumthani 12121, Thailand 3SAIC, San Diego, CA 92121, USA IEA Workshop on Burning Plasma Physics and Simulation 4-5 July 2005 #12;Predictive Modeling of Burning Plasmas IEA of burning plasma experiments using static and dynamic pedestal models IEA Workshop on Burning Plasma Physics

  3. How the Lean Management System is Working on a Closure Project - 13242

    SciTech Connect (OSTI)

    Mowery, Carol [Washington Closure Hanford, 2620 Fermi, Richland, Washington, 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington, 99354 (United States)

    2013-07-01T23:59:59.000Z

    Washington Closure Hanford, LLC (WCH) manages the River Corridor Closure Project (RCCP), a 10-year contract, in which WCH will clean up 220 mi{sup 2} of contaminated land at the Hanford Site in Richland, Washington. Strategic planning sessions in 2009 identified key performance areas that were essential to closure and in which focused change could result in dramatic performance improvement. Lean Management Systems (Lean) was selected as the methodology to achieve the desired results. The Lean Process is built upon the fundamentals of the power of respect for people and the practice of continuous process improvement. Lean uses week-long, focused sessions that teach a selected team the techniques to recognize waste within their own work processes, propose potential solutions, and then conduct experiments during the week to test their solutions. In 2011, the Lean process was implemented in the Waste Operations organization. From there it was expanded to closure documents, field remediation, and decommissioning and demolition. WCH identified the following Lean focus areas: 1) closure document processes that required extensive internal preparation, and lengthy external review and approval cycles; 2) allocation of limited transportation and waste disposal resources to meet aggressive remediation schedules; 3) effective start-of-the-day routines in field operations; 4) improved excavation and load-out processes; and 5) approaches to strengthen safety culture and support disciplined operations. Since the introduction of Lean, RCCP has realized many successes and also gained some unexpected benefits. (authors)

  4. On the quantum analogue of Galileo's leaning tower experiment

    E-Print Network [OSTI]

    Md. Manirul Ali; A. S. Majumdar; Dipankar Home; Alok Kumar Pan

    2006-10-14T23:59:59.000Z

    The quantum analogue of Galileo's leaning tower experiment is revisited using wave packets evolving under the gravitational potential. We first calculate the position detection probabilities for particles projected upwards against gravity around the classical turning point and also around the point of initial projection, which exhibit mass dependence at both these points. We then compute the mean arrival time of freely falling particles using the quantum probability current, which also turns out to be mass dependent. The mass dependence of both the position detection probabilities and the mean arrival time vanish in the limit of large mass. Thus, compatibility between the weak equivalence principle and quantum mechanics is recovered in the macroscopic limit of the latter.

  5. Flashback detection sensor for lean premix fuel nozzles

    DOE Patents [OSTI]

    Thornton, Jimmy Dean (Morgantown, WV); Richards, George Alan (Morgantown, WV); Straub, Douglas L. (Morgantown, WV); Liese, Eric Arnold (Morgantown, WV); Trader, Jr., John Lee (Morgantown, WV); Fasching, George Edward (Morgantown, WV)

    2002-08-06T23:59:59.000Z

    A sensor for detecting the flame occurring during a flashback condition in the fuel nozzle of a lean premix combustion system is presented. The sensor comprises an electrically isolated flashback detection electrode and a guard electrode, both of which generate electrical fields extending to the walls of the combustion chamber and to the walls of the fuel nozzle. The sensor is positioned on the fuel nozzle center body at a location proximate the entrance to the combustion chamber of the gas turbine combustion system. The sensor provides 360.degree. detection of a flashback inside the fuel nozzle, by detecting the current conducted by the flame within a time frame that will prevent damage to the gas turbine combustion system caused by the flashback condition.

  6. Three-Dimensional Composite Nanostructures for Lean NOx Emission Control

    SciTech Connect (OSTI)

    Gao, Pu-Xian

    2013-07-31T23:59:59.000Z

    This final report to the Department of Energy (DOE) and National Energy Technology Laboratory (NETL) for DE-EE0000210 covers the period from October 1, 2009 to July 31, 2013. Under this project, DOE awarded UConn about $1,248,242 to conduct the research and development on a new class of 3D composite nanostructure based catalysts for lean NOx emission control. Much of the material presented here has already been submitted to DOE/NETL in quarterly technical reports. In this project, through a scalable solution process, we have successfully fabricated a new class of catalytic reactors, i.e., the composite nanostructure array (nano-array) based catalytic converters. These nanocatalysts, distinct from traditional powder washcoat based catalytic converters, directly integrate monolithic substrates together with nanostructures with well-defined size and shape during the scalable hydrothermal process. The new monolithic nanocatalysts are demonstrated to be able to save raw materials including Pt-group metals and support metal oxides by an order of magnitude, while perform well at various oxidation (e.g., CO oxidation and NO oxidation) and reduction reactions (H{sub 2} reduction of NOx) involved in the lean NOx emissions. The size, shape and arrangement of the composite nanostructures within the monolithic substrates are found to be the key in enabling the drastically reduced materials usage while maintaining the good catalytic reactivity in the enabled devices. The further understanding of the reaction kinetics associated with the unique mass transport and surface chemistry behind is needed for further optimizing the design and fabrication of good nanostructure array based catalytic converters. On the other hand, the high temperature stability, hydrothermal aging stability, as well as S-poisoning resistance have been investigated in this project on the nanocatalysts, which revealed promising results toward good chemical and mechanical robustness, as well as S-poisoning resistance. Further investigation is needed for unraveling the understanding, design and selection principles of this new class of nanostructure based monolithic catalysts.

  7. Waste-to-Energy Facilities in Taiwan by Shang-Hsiu Lee, WTERT/Earth Engineering Center

    E-Print Network [OSTI]

    Columbia University

    stage Operator 1 Neihwu, Taipei City 900 144 Mass Burn Fixed bed (Takuma) Sinotech Engineering 2 Muja, Taipei City 1,500 324 Mass Burn Fixed bed (Takuma) SEC Takuma Co. Ltd completed July, 1994 EPB of Taipei City 3 Beitou, Taipei City 1,800 1,080 Mass Burn Fixed bed (Von Roll) SEC Marubeni Co

  8. A University Consortium on High Pressure, Lean Combustion for...

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

    Combustion for Efficient and Clean IC Engines (UM - lead, MIT, UCB) 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference Detroit, Michigan September 27-30,...

  9. Engineering Technician

    Broader source: Energy.gov [DOE]

    Alternate Title(s):Civil Engineering Technician; Electrical Engineering Technician; Mechanical Engineering Technician; Environmental Engineering Technician

  10. Extension of the high load limit in the Homogeneous Charge Compression Ignition engine

    E-Print Network [OSTI]

    Scaringe, Robert J. (Robert Joseph)

    2009-01-01T23:59:59.000Z

    The Homogeneous Charge Compression Ignition (HCCI) engine offers diesel-like efficiency with very low soot and NOx emissions. In a HCCI engine, a premixed charge of air, fuel and burned gas is compressed to achieve ...

  11. Letterkenny Army Depot: The Army Teaches Business a Lesson in Lean Six Sigma

    E-Print Network [OSTI]

    Harvey, Roger K.

    2006-05-23T23:59:59.000Z

    Letterkenny Army Depot: The Army Teaches Business a Lesson in Lean Six Sigma is a case study of Letterkenny Army Depot, one of five Army maintenance depots. Letterkenny recapitalizes missiles, HMMWV's, generators, and other ...

  12. United States Air Force Air Logistics Centers : lean enterprise transformation and associated capabilities

    E-Print Network [OSTI]

    Cohen, Jessica L. (Jessica Lauren)

    2005-01-01T23:59:59.000Z

    Lean enterprise transformation entails a complementary set of initiatives and efforts executed over a substantial period of time, in a consistent and coordinated manner, at all levels of the enterprise. It builds upon ...

  13. A design strategy applied to sulfur resistant lean NOx̳ automotive catalysts

    E-Print Network [OSTI]

    Tang, Hairong

    2005-01-01T23:59:59.000Z

    Catalyst poisoning due to sulfur compounds derived from fuel sulfur presents a major challenge, intractable thus far, to development of many advanced technologies for automotive catalysts such as the lean NOx, trap. Under ...

  14. Integrating lean principles in automotive product development : breaking down barriers in culture and process

    E-Print Network [OSTI]

    Garza, Laura A., 1970-

    2005-01-01T23:59:59.000Z

    Lean principles have been applied throughout the manufacturing industry with noted success although the process of integrating them into the entire enterprise has been complex and slow. Certain areas of the automotive ...

  15. Vehicle Technologies Office Merit Review 2015: Lean Miller Cycle System Development for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by General Motors at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about lean miller cycle system...

  16. Excellent Sulfur Resistance of Pt/BaO/CeO2 Lean NOx Trap Catalysts...

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

    and CHF Peden.2008."Excellent Sulfur Resistance of PtBaOCeO2 Lean NOx Trap Catalysts."Applied Catalysis. B, Environmental 84(3-4):545-551. doi:10.1016j.apcatb.2008.05.009...

  17. Leanness and Convenience Dimensions of Beef Products: an Exploratory Analysis Using Scanner Data.

    E-Print Network [OSTI]

    Capps, Oral Jr; Nayga, Rodolfo M. Jr.

    1991-01-01T23:59:59.000Z

    ) Stouffer Oriental Beef Lean Cuisine, (6) Budget Sirloin Beef, (7) Le Menu Pepper Steak, (8) Budget Gourmet Oriental Beef, (9) Classic Lite Steak Diane Mignonette, and (10) Le Menu Beef Stroganoff. Within the class of fresh beef products, by carcass...

  18. Inter-company collaboration within a large lean supply chain initiative

    E-Print Network [OSTI]

    Mentzer, Maria Ritums

    2009-01-01T23:59:59.000Z

    Cisco and its four contract manufacturing partners are collaborating to implement a lean replenishment methodology across their supply chain. The new system is expected to result in minimized inventory exposure, increased ...

  19. Lean manufacturing in a mass customization plant : improved efficiencies in raw material presentation

    E-Print Network [OSTI]

    Daneshmand, Moojan

    2011-01-01T23:59:59.000Z

    This thesis focuses on the application of the principles of lean manufacturing at Varian Semiconductor Equipment Associates (VSEA). The company faces the challenges of highly customized assembly as well as fluctuating ...

  20. The application of lean manufacturing principles in a high mix low volume environment

    E-Print Network [OSTI]

    Dudley, Amber Nicole

    2005-01-01T23:59:59.000Z

    This thesis studies the opportunities for the application of lean manufacturing tools in a high- mix, low-volume traditional manufacturing factory floor setting. Value stream mapping and associated analytical tools are ...

  1. Lean manufacturing in a mass customization plant : improvement of Kanban policy and implementation

    E-Print Network [OSTI]

    Chen, Wu, M. Eng. Massachusetts Institute of Technology

    2011-01-01T23:59:59.000Z

    This thesis documents the application of the principles of lean manufacturing and supply chain planning at Varian Semiconductor Equipment Associates. Varian is a manufacturer of ion implantation machines, and supplies and ...

  2. Lean manufacturing in a mass customization plant : inventory correction and shortage measurement

    E-Print Network [OSTI]

    Raykar, Sumant (Sumant Shreechandra)

    2011-01-01T23:59:59.000Z

    This thesis documents the application of the principles of lean manufacturing and supply chain planning at Varian Semiconductor Equipment Associates. The company's products are highly customizable, and the production ...

  3. Mature weights and lean maturing patterns of diverse breedtypes of cattle

    E-Print Network [OSTI]

    Rajab, Mohammad Hasan

    1983-01-01T23:59:59.000Z

    MATURE WEIGHTS AND LEAN MATURING PATTERNS OF DIVERSE BREEDTYPES OF CATTLE A Thesis by MOHAMMAD HASAN RAJAB Submitted to the Graduate College of Texas ABM University in partial fulfullment of the requirement for the degree of MASTER... OF SCIENCE May 1983 Major Subject: Animal Breeding MATURE WEIGHTS AND LEAN MATURING PATTERNS OF DIVERSE BREEDTYPES OF CATTLE A Thesis by MOHAMMAD HASAN RAJAB Approved as to style and content by: (Co-Chairman of Committee) Gerald M. Smith (Co...

  4. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    J. D. Crounse et al. : Biomass burning pollution overChemistry and Physics Biomass burning and urban airprimary anthropogenic and biomass burning organic aerosols

  5. Biomass burning contribution to black carbon in the Western United States Mountain Ranges

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    and the atmosphere from biomass burning, Climatic Change, 2,Chemistry and Physics Biomass burning contribution to black2011 Y. H. Mao et al. : Biomass burning contribution to

  6. Do biomass burning aerosols intensify drought in equatorial Asia during El Niño?

    E-Print Network [OSTI]

    Tosca, M. G; Randerson, J. T; Zender, C. S; Flanner, M. G; Rasch, P. J

    2010-01-01T23:59:59.000Z

    fication of drought-induced biomass burning in Indonesiavariability in global biomass burning emissions from 1997 toChemistry and Physics Do biomass burning aerosols intensify

  7. Evaluating greenhouse gas emissions inventories for agricultural burning using satellite observations of active fires

    E-Print Network [OSTI]

    Lin, Hsiao-Wen; Jin, Yufang; Giglio, Louis; Foley, Jonathan A; Randerson, James T

    2012-01-01T23:59:59.000Z

    2009). Regulation of agricultural waste burning occurs atuse and burning of agricultural waste in the developingStates, for example, agricultural waste burning is managed

  8. Proceedings of the Combustion Institute, Volume 28, 2000/pp. 17931800 MORPHOLOGY AND BURNING RATES OF EXPANDING SPHERICAL

    E-Print Network [OSTI]

    Tse, Stephen D.

    within internal combustion engines are substantially higher, a novel experimental apparatus- termined for pressures up to a few atmospheres. Since combustion processes within internal combus- tion1793 Proceedings of the Combustion Institute, Volume 28, 2000/pp. 1793­1800 MORPHOLOGY AND BURNING

  9. THE BURNING OF BIOMASS Economy, Environment, Health

    E-Print Network [OSTI]

    NOT GUARANTEED · PROFITS ARE NOT LOCAL #12;BAD FOR THE ENVIRONMENT · Increased CO2­ global warming, ocean #12;PT COGENERATION LLC A wood-burning cogeneration power plant - Generates electricity (for sale off FOR PAPER TURBINE/ GENERATOR 25 MW MORE ELECTRICITY (currently make about 13MW) HIGH PRESSURE STEAM ADDS 15

  10. ASSESSMENTOF BURNING-PLASMA PHENOMENA COMPACTIGNITION TOKAMAK

    E-Print Network [OSTI]

    Report+ on ASSESSMENTOF BURNING-PLASMA PHENOMENA . in a COMPACTIGNITION TOKAMAK presented-coil tokamak configurations that would achieve ignition under presently accepted scaling laws. Studies the extent to which these compact tokamak ignition experiments can resolve the technical issue of under

  11. Global observations of desert dust and biomass burning aerosols

    E-Print Network [OSTI]

    Graaf, Martin de

    Global observations of desert dust and biomass burning aerosols Martin de Graaf KNMI #12; Outline · Absorbing Aerosol Index - Theory · Absorbing Aerosol Index - Reality · Biomass burning and desert dust observations from GOME and SCIAMACHY · Conclusions and Outlook #12; · Absorbing Aerosol

  12. Clean-Burning Wood Stove Grant Program (Maryland)

    Broader source: Energy.gov [DOE]

    The Maryland Energy Administration (MEA) now offers the Clean Burning Wood Stove Grant program as part of its Residential Clean Energy Grant Program. The Clean Burning Wood Stove Grant program...

  13. U S Burning Plasma Organization:U.S. Burning Plasma Organization: Supporting US Scientific Contributions to

    E-Print Network [OSTI]

    Community (TTF,...) US Technology Community · USBPO mission is to coordinate US Burning Plasma related research to advance science USBPO Director, Jim Van Dam, also serves as US IPO Chief Scientist, assuring

  14. Discussion of Alpha Particle Physics Issues for AT Burning Plasmas

    E-Print Network [OSTI]

    machines » Projections to burning plasma #12;Alpha self-heating in AT regimes v Production and control

  15. The F/A-18 external burning flight test

    SciTech Connect (OSTI)

    Yungkurth, C.; Dawson, F.; Houck, S.; Corda, S.; Trefny, C. (Johns Hopkins University, Laurel, MD (United States) U.S. Navy, Naval Air Test Center, Patuxent River, MD (United States) NASA, Flight Research Center, Edwards, CA (United States) NASA, Lewis Research Center, Cleveland, OH (United States))

    1991-12-01T23:59:59.000Z

    A flight test program was undertaken to demonstrate the feasibility of obtaining external burning (EB) data in a flight environment, and to address the question of facility interference in ground test external burning data. Results showed that external burning was effective at reducing transonic base drag in a flight environment having dynamically changing conditions. The flight test program demonstrated that external burning is not just a laboratory phenomenon but is a viable technology for aerospace vehicles. 12 refs.

  16. Range Vegetation Response to Burning Thicketized Live Oak Savannah.

    E-Print Network [OSTI]

    Scifres, C.J.; Kelly, D.M.

    1979-01-01T23:59:59.000Z

    July Doc. Fob. April July Fob. Figure 1. Green grass standing crop (kglha) at various dates after burning thicketized savannah on the Aransas National WiWife Refuge near AushveH, Texas. Askdbd means fran burned areas are significantly different... burning thicketized savannah on the a 200 - \\r . Aransas National Wildlife Refuge near Austwell, )v 53 Texas. Askriked means within a date of evalua- '-\\ i tion are significantly different from that of the 0 8 lmg- burned area at the 95-percent...

  17. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2011 Eight Required Courses Chart: 120 points College

  18. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2012 Eight Required Courses Chart: 120 points College

  19. James W. Van Dam US Burning Plasma Organization

    E-Print Network [OSTI]

    focus: magnetically confined plasmas #12;Page 5 USBPO What is a "burning" plasma? · "Burning" plasmaJames W. Van Dam US Burning Plasma Organization US ITER Project Office Institute for Fusion Studies Plasmas -- A Tutorial -- Supported by Office of Science #12;Page 2 USBPO The next frontier · Understanding

  20. Burned Area Emergency Response Report July 8, 2010

    E-Print Network [OSTI]

    ;Executive Summary Burned Area Report Cost Benefit Analysis Soil Burn Severity Map Treatment Map Values-at-Risk The Schultz Fire was started from an abandoned campfire. The fire became a wind-driven event, burning in major. If the pipeline becomes unusable the city would have to drill wells to make up for the loss, at an estimated cost

  1. Method of preparing doped oxide catalysts for lean NOx exhaust

    DOE Patents [OSTI]

    Park, Paul W.

    2004-03-09T23:59:59.000Z

    The lean NOx catalyst includes a substrate, an oxide support material, preferably .gamma.-alumina deposited on the substrate and a metal or metal oxide promoter or dopant introduced into the oxide support material. The metal promoters or dopants are selected from the group consisting of indium, gallium, tin, silver, germanium, gold, nickel, cobalt, copper, iron, manganese, molybdenum, chromium cerium, and vanadium, and oxides thereof, and any combinations thereof. The .gamma.-alumina preferably has a pore volume of from about 0.5 to about 2.0 cc/g; a surface area of between 80 and 350 m.sup.2 /g; an average pore size diameter of between about 3 to 30 nm; and an impurity level of less than or equal to about 0.2 weight percent. In a preferred embodiment the .gamma.-alumina is prepared by a sol-gel method, with the metal doping of the .gamma.-alumina preferably accomplished using an incipient wetness impregnation technique.

  2. Between the Low Road and the High Road: Logics of Valorization and Regimes of Lean Production in US Manufacturing

    E-Print Network [OSTI]

    Vidal, Matt

    2012-01-01T23:59:59.000Z

    Lean-as-toolbox Plastic containers No Consultativebranch plant 4. Plastic Containers 5. Precision Metalfab 6.Metalfab X X X Plus 17. Plastic X Containers 18. Precision X

  3. Engineering Engineering Education

    E-Print Network [OSTI]

    Simaan, Nabil

    E School of Engineering Engineering Education in a University Setting 292 Degree Programs in Engineering 294 Special Programs 296 Honors 298 Academic Regulations 300 Courses of Study 305 Engineering of Engineering is the largest and oldest private engineering school in the South. Classes offering engineering

  4. 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..

  5. Systems Analysis of a Compact Next Step Burning Plasma Experiment

    SciTech Connect (OSTI)

    S.C. Jardin; C.E. Kessel; D. Meade; C. Neumeyer

    2002-02-06T23:59:59.000Z

    A new burning plasma systems code (BPSC) has been developed for analysis of a next step compact burning plasma experiment with copper-alloy magnet technology. We consider two classes of configurations: Type A, with the toroidal field (TF) coils and ohmic heating (OH) coils unlinked, and Type B, with the TF and OH coils linked. We obtain curves of the minimizing major radius as a function of aspect ratio R(A) for each configuration type for typical parameters. These curves represent, to first order, cost minimizing curves, assuming that device cost is a function of major radius. The Type B curves always lie below the Type A curves for the same physics parameters, indicating that they lead to a more compact design. This follows from that fact that a high fraction of the inner region, r < R-a, contains electrical conductor material. However, the fact that the Type A OH and TF magnets are not linked presents fewer engineering challenges and should lead to a more reliable design. Both the Type A and Type B curves have a minimum in major radius R at a minimizing aspect ratio A typically above 2.8 and at high values of magnetic field B above 10 T. The minimizing A occurs at larger values for longer pulse and higher performance devices. The larger A and higher B design points also have the feature that the ratio of the discharge time to the current redistribution time is largest so that steady-state operation can be more realistically prototyped. A sensitivity study is presented for the baseline Type A configuration showing the dependence of the results on the parameters held fixed for the minimization study.

  6. U.S. BURNING PLASMA ORGANIZATION ACTIVITIES

    SciTech Connect (OSTI)

    Raymond J. Fonck

    2009-08-11T23:59:59.000Z

    The national U.S. Burning Plasma Organization (USBPO) was formed to provide an umbrella structure in the U.S. fusion science research community. Its main purpose is the coordination of research activities in the U.S. program relevant to burning plasma science and preparations for participation in the international ITER experiment. This grant provided support for the continuing development and operations of the USBPO in its first years of existence. A central feature of the USBPO is the requirement for broad community participation in and governance of this effort. We concentrated on five central areas of activity of the USBPO during this grant period. These included: 1) activities of the Director and support staff in continuing management and development of the USBPO activity; 2) activation of the advisory Council; 3) formation and initial research activities of the research community Topical Groups; 4) formation of Task Groups to perform specific burning plasma related research and development activities; 5) integration of the USBPO community with the ITER Project Office as needed to support ITER development in the U.S.

  7. Thermonuclear Burning on Rapidly Accreting Neutron Stars

    E-Print Network [OSTI]

    Lars Bildsten

    1997-09-10T23:59:59.000Z

    Neutron stars in mass-transferring binaries are accreting the hydrogen and helium rich matter from the surfaces of their companions. This article simply explains the physics associated with how that material eventually fuses to form heavier nuclei and the observations of the time dependent phenomena (such as Type I X-ray bursts) associated with the thermally unstable thermonuclear reactions. We explain how the outcome depends on the composition of the accreting matter, the accretion rate and the mass, radius and thermal state of the neutron star. We also introduce many new analytic relations that are convenient for comparisons to both observations and computational results. After explaining nuclear burning for spherically symmetric accretion onto neutron stars, we discuss the possibility of asymmetric burning. In particular, we discuss some of the mysteries from EXOSAT observations of Type I X-Ray bursts and how the solution to these puzzles may lie in considering the lateral propagation of nuclear burning fronts around the star. Fully understanding this problem requires knowledge of parameters previously neglected such as the distribution of fresh fuel on the star, the magnetic field strength, and the stellar rotation. Recent RXTE observations of bursters may finally tell us some of these parameters.

  8. Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls

    SciTech Connect (OSTI)

    Gao, Zhiming [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

  9. Micro-Mixing Lean-Premix System for Ultra-Low Emission Hydrogen/Syngas Combustion

    SciTech Connect (OSTI)

    Erlendur Steinthorsson; Brian Hollon; Adel Mansour

    2010-06-30T23:59:59.000Z

    The focus of this project was to develop the next generation of fuel injection technologies for environmentally friendly, hydrogen syngas combustion in gas turbine engines that satisfy DOE's objectives of reducing NOx emissions to 3 ppm. Building on Parker Hannifin's proven Macrolamination technology for liquid fuels, Parker developed a scalable high-performing multi-point injector that utilizes multiple, small mixing cups in place of a single conventional large-scale premixer. Due to the small size, fuel and air mix rapidly within the cups, providing a well-premixed fuel-air mixture at the cup exit in a short time. Detailed studies and experimentation with single-cup micro-mixing injectors were conducted to elucidate the effects of various injector design attributes and operating conditions on combustion efficiency, lean stability and emissions and strategies were developed to mitigate the impact of flashback. In the final phase of the program, a full-scale 1.3-MWth multi-cup injector was built and tested at pressures from 6.9bar (100psi) to 12.4bar (180psi) and flame temperatures up to 2000K (3150 F) using mixtures of hydrogen and natural gas as fuel with nitrogen and carbon dioxide as diluents. The injector operated without flash back on fuel mixtures ranging from 100% natural gas to 100% hydrogen and emissions were shown to be insensitive to combustor pressure. NOx emissions of 3-ppm were achieved at a flame temperature of 1750K (2690 F) when operating on a fuel mixture containing 50% hydrogen and 50% natural gas by volume with 40% nitrogen dilution and 1.5-ppm NOx was achieved at a flame temperature of 1680K (2564 F) using only 10% nitrogen dilution. NOx emissions of 3.5-ppm were demonstrated at a flame temperature of 1730K (2650 F) with only 10% carbon dioxide dilution. Finally, 3.6-ppm NOx emissions were demonstrated at a flame temperature over 1600K (2420 F) when operating on 100% hydrogen fuel with 30% carbon dioxide dilution. Superior operability was demonstrated for the hydrogen-natural gas fuel. The micro-mixing fuel injectors show great promise for use in future gas turbine engines operating on hydrogen, syngas or other fuel mixtures of various compositions, supporting the Department of Energy goals related to increased energy diversity while reducing greenhouse gases.

  10. Renewable Combined Heat and Power Dairy Operations

    E-Print Network [OSTI]

    horsepower Guascor model SFGLD-560 biogas-fired lean burn internal combustion (IC) engine and generator set bacteria to remove hydrogen sulfide presented in the biogas. Source: Fiscalini Farms Term: March 2011

  11. act opportunity knocks: Topics by E-print Network

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

    suggested that there are no gross Lee, Hey-Kyoung 40 Knock behavior of a lean-burn hydrogen-enhanced engine concept MIT - DSpace Summary: Experiments to identify the knock...

  12. Diesel Engine Alternatives

    SciTech Connect (OSTI)

    Ryan, T

    2003-08-24T23:59:59.000Z

    There are basically three different modes of combustion possible for use in reciprocating engines. These include, diffusion burning, as occurs in current diesel engines, flame propagation combustion such as used in conventional SI engines, and homogeneous combustion such as is used in the SwRI HCCI engine. Diesel engines currently offer significant fuel consumption benefits relative to other powerplants for on and off road applications; however, costs and efficiency may become problems as the emissions standards become even more stringent. This presentation presents a discussion of the potentials of HCCI and flame propagation engines as alternatives to the diesel engines. It is suggested that as the emissions standards become more and more stringent, the advantages of the diesel may disappear. The potential for HCCI is limited by the availability of the appropriate fuel. The potential of flame propagation engines is limited by several factors including knock, EGR tolerance, high BMEP operation, and throttling. These limitations are discussed in the context of potential for improvement of the efficiency of the flame propagation engine.

  13. The Children’s Hospital X Project: A Case Study in Benefit and Cost Analysis of a Lean-IPD Project

    E-Print Network [OSTI]

    Ai, Di

    2014-04-24T23:59:59.000Z

    Lean processes have been utilized in healthcare design and construction, bringing both benefits and costs to the owners of healthcare projects. It is important to understand and detect the benefits and costs associated with lean processes, because...

  14. Plasma-wall interaction data needs critical to a Burning Core Experiment (BCX)

    SciTech Connect (OSTI)

    Not Available

    1985-11-01T23:59:59.000Z

    The Division of Development and Technology has sponsored a four day US-Japan workshop ''Plasma-Wall Interaction Data Needs Critical to a Burning Core Experiment (BCX)'', held at Sandia National Laboratories, Livermore, California on June 24 to 27, 1985. The workshop, which brought together fifty scientists and engineers from the United States, Japan, Germany, and Canada, considered the plasma-material interaction and high heat flux (PMI/HHF) issues for the next generation of magnetic fusion energy devices, the Burning Core Experiment (BCX). Materials options were ranked, and a strategy for future PMI/HHF research was formulated. The foundation for international collaboration and coordination of this research was also established. This volume contains the last three of the five technical sessions. The first of the three is on plasma materials interaction issues, the second is on research facilities and the third is from smaller working group meetings on graphite, beryllium, advanced materials and future collaborations.

  15. ENGINEERING TECHNOLOGY Engineering Technology

    E-Print Network [OSTI]

    ENGINEERING TECHNOLOGY Engineering Technology Program The Bachelor of Science in Engineering Technology (BSET) is a hands-on program based upon engineering technology fundamentals, engineering for employment or further education. The focus is on current engineering technology issues and applications used

  16. Interim Status Closure Plan Open Burning Treatment Unit Technical Area 16-399 Burn Tray

    SciTech Connect (OSTI)

    Vigil-Holterman, Luciana R. [Los Alamos National Laboratory

    2012-05-07T23:59:59.000Z

    This closure plan describes the activities necessary to close one of the interim status hazardous waste open burning treatment units at Technical Area (TA) 16 at the Los Alamos National Laboratory (LANL or the Facility), hereinafter referred to as the 'TA-16-399 Burn Tray' or 'the unit'. The information provided in this closure plan addresses the closure requirements specified in the Code of Federal Regulations (CFR), Title 40, Part 265, Subparts G and P for the thermal treatment units operated at the Facility under the Resource Conservation and Recovery Act (RCRA) and the New Mexico Hazardous Waste Act. Closure of the open burning treatment unit will be completed in accordance with Section 4.1 of this closure plan.

  17. Vehicle Technologies Office Merit Review 2014: Emissions Control for Lean Gasoline Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about emissions...

  18. Using Virtual Business Systems to drive lean behavior in engineering design and support

    E-Print Network [OSTI]

    Ho, Purdy P. (Purdy Pinpin), 1977-

    2008-01-01T23:59:59.000Z

    Virtual Business System (VBS) is a visual-based analytics and real-time information displaying system. It first started at Raytheon's Andover manufacturing facility in early 2000 with the strategic objectives of linking ...

  19. 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine...

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

    Reductant Utilization in a LNT + SCR System Spatiotemporal Distribution of NOx Storage: a Factor Controlling NH3 and N2O Selectivities over a Commercial LNT Catalyst...

  20. 5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles:

    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: The Future of BadTHEEnergyReliability2015 Peer Review.EPA2Quarterly Office

  1. Clean Burn Fuels LLC | 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, clickInformation SmyrnaNewClay Electric Cooperative,North Carolina:CleanBurn

  2. advanced burning phases: Topics by E-print Network

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

    Physics and Fusion Websites Summary: ons USBPO - Coordinates US burning plasma research, to advance scienfic understanding USBPO organizes the US Fusion Energy Science...

  3. acinetobacter baumannii burn: Topics by E-print Network

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

    Physics and Fusion Websites Summary: ons USBPO - Coordinates US burning plasma research, to advance scienfic understanding USBPO organizes the US Fusion Energy Science...

  4. apparent burning area: Topics by E-print Network

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

    Physics and Fusion Websites Summary: The Workshop will concentrate on burning plasma research in the areas of Plasma Transport and Confinement, MHD plasma research; ...

  5. adiabatic burning velocity: Topics by E-print Network

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

    Sciences Websites Summary: burning velocities under conditions for which the net heat loss of the flame is zero. Very similar values, France 2 IFP Energies nouvelles, 1 et...

  6. Global estimation of burned area using MODIS active fire observations

    E-Print Network [OSTI]

    Giglio, L.; van der Werf, G. R; Randerson, J. T; Collatz, G. J; Kasibhatla, P.

    2006-01-01T23:59:59.000Z

    Justice, C. O. : The quantity of biomass burned in southernestimates of the quantity of biomass consumed through com-consume prodigious quantities of biomass yet leave a very

  7. Facing the transition. [Retrofitting vessels for burning coal

    SciTech Connect (OSTI)

    Not Available

    1981-08-01T23:59:59.000Z

    Historically, environmental regulations prohibiting black smoke in port and marine disposal of ashes caused many coal-burning vessels in the Great Lakes shipping industry to convert to oil-burning systems. With a return to coal-burning plants on-board, these problems and others are being addressed. Improvements are being made in stack emission control. The need for monitoring devices is discussed. Mechanisms are described which will help control dust, heat, noise and ash. To reduce the need for excessive stockpiles of various grades of coal, equipment is being designed which will burn a range of coals available in many ports. (JMT)

  8. Science & Engineering Engineering Databases

    E-Print Network [OSTI]

    Hampton, Randy

    -present. Good for computers, electronics, biomedical, control, electrical and ocean engineering, physics9/09 DK,DS Science & Engineering Library Engineering Databases How to search the engineering initials Special features: Limit to peer-reviewed journals Compendex [Engineering Index] 1884-present

  9. PARTNERING, LEAN CONSTRUCTION AND HEALTH AND SAFETY WORK ON THE CONSTRUCTION SITE: CO-PLAYERS OR

    E-Print Network [OSTI]

    Hansen, René Rydhof

    PARTNERING, LEAN CONSTRUCTION AND HEALTH AND SAFETY WORK ON THE CONSTRUCTION SITE: CO Research Institute/Aalborg University, Hørsholm, Denmark (stg@sbi.dk) Each new construction project the construction process and the specific health and safety work on the construction site must therefore also

  10. Page 1 of 13 Understanding Industrial Energy Use Through Lean Energy Analysis

    E-Print Network [OSTI]

    Kissock, Kelly

    Page 1 of 13 11SDP-0048 Understanding Industrial Energy Use Through Lean Energy Analysis Abels, B of Dayton, Dayton, Ohio Copyright © 2011 SAE International ABSTRACT This paper describes a simple statistical method to statistically disaggregate industrial energy use into production-dependent, weather

  11. Applied Catalysis A: General 226 (2002) 183192 NO reduction by urea under lean conditions

    E-Print Network [OSTI]

    Gulari, Erdogan

    2002-01-01T23:59:59.000Z

    Applied Catalysis A: General 226 (2002) 183­192 NO reduction by urea under lean conditions over.V. All rights reserved. PII: S0926-860X(01)00901-2 #12;184 E. Seker et al. / Applied Catalysis A: General

  12. A LEAN METHANE PREMIXED LAMINAR FLAME DOPED WITH COMPONENTS OF DIESEL FUEL

    E-Print Network [OSTI]

    Boyer, Edmond

    A LEAN METHANE PREMIXED LAMINAR FLAME DOPED WITH COMPONENTS OF DIESEL FUEL PART I: N-BUTYLBENZENE E better understand the chemistry involved during the combustion of components of diesel fuel flow rate analyses. Keywords: Premixed laminar flame, methane, n-butylbenzene, modelling, diesel fuel

  13. The effect of hydrogen addition on flammability limit and NOx emission in ultra-lean counterflow

    E-Print Network [OSTI]

    Gülder, �mer L.

    . They indicated that the addition of hydrogen to natural gas or methane resulted in an increase in NOx for most increases, and then decreases with the increase in the fraction of hydrogen. Overall, hydrogen enrichment rights reserved. Keywords: Hydrogen enrichment; NOx; Extinction limit; Ultra-lean premixed flame. 1

  14. Free-piston engine

    DOE Patents [OSTI]

    Van Blarigan, Peter (Truckee, CA)

    2001-01-01T23:59:59.000Z

    A combustion system which can utilize high compression ratios, short burn durations, and homogeneous fuel/air mixtures in conjunction with low equivalence ratios. In particular, a free-piston, two-stroke autoignition internal combustion engine including an electrical generator having a linear alternator with a double-ended free piston that oscillates inside a closed cylinder is provided. Fuel and air are introduced in a two-stroke cycle fashion on each end, where the cylinder charge is compressed to the point of autoignition without spark plugs. The piston is driven in an oscillating motion as combustion occurs successively on each end. This leads to rapid combustion at almost constant volume for any fuel/air equivalence ratio mixture at very high compression ratios. The engine is characterized by high thermal efficiency and low NO.sub.x emissions. The engine is particularly suited for generating electrical current in a hybrid automobile.

  15. Solid fuel combustion system for gas turbine engine

    DOE Patents [OSTI]

    Wilkes, Colin (Lebanon, IN); Mongia, Hukam C. (Carmel, IN)

    1993-01-01T23:59:59.000Z

    A solid fuel, pressurized fluidized bed combustion system for a gas turbine engine includes a carbonizer outside of the engine for gasifying coal to a low Btu fuel gas in a first fraction of compressor discharge, a pressurized fluidized bed outside of the engine for combusting the char residue from the carbonizer in a second fraction of compressor discharge to produce low temperature vitiated air, and a fuel-rich, fuel-lean staged topping combustor inside the engine in a compressed air plenum thereof. Diversion of less than 100% of compressor discharge outside the engine minimizes the expense of fabricating and maintaining conduits for transferring high pressure and high temperature gas and incorporation of the topping combustor in the compressed air plenum of the engine minimizes the expense of modifying otherwise conventional gas turbine engines for solid fuel, pressurized fluidized bed combustion.

  16. 33engineering EnginEEring and

    E-Print Network [OSTI]

    Wagner, Stephan

    33engineering EnginEEring and ThE builT EnvironmEnT www.wits.ac.za/ebe #12;34 guide for applicants 2015 The study of Engineering Career opportunities for engineers are limitless and extend beyond the formal engineering sector. A career in engineering requires special talents ­ engineers need

  17. Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001â??2009 MISR imagery of Borneo

    E-Print Network [OSTI]

    Zender, C. S.; Krolewski, A. G.; Tosca, M. G.; Randerson, J. T.

    2012-01-01T23:59:59.000Z

    C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

  18. Identification of Dominant Mechanisms for Capacity Fade of Lithium-Ion Batteries Nancy A. Burns*, Ruthvik Basavaraj**, Venkatasailanathan Ramadesigan***, Folarin Latinwo**, Ravi N. Methekar***,

    E-Print Network [OSTI]

    Subramanian, Venkat

    Identification of Dominant Mechanisms for Capacity Fade of Lithium-Ion Batteries Nancy A. Burns- + 6C LixC6 Lithium-ion battery, chemistry and reactions Electric motor Engine Fuel tank Electric candidate for high-power/high-energy secondary batteries and commercial batteries of up to 75 Ah have been

  19. 340th Catalysis Research Center (CRC) Colloquium NOx Storage Mechanism on NSR Catalysts

    E-Print Network [OSTI]

    Ishii, Hitoshi

    brought about the lean-burn engine technology with high air/fuel ratio for motor vehicles. However of the leading strategies to tackle this issue. The catalyst works with alternatively lean and rich conditions 1996 to 2003. He was a visiting professor at Kyoto University, Japan, Ecole Normale Superieure de Lyon

  20. THE SCIENCE FRONTIER OF MFE BURNING PLASMA PHYSICS

    E-Print Network [OSTI]

    plasma and self-heating issues for magnetic fusion. #12;THERE ARE TWO TYPES OF BURNING PLASMA ISSUES PHENOMENA #12;MANY NEW AND EXCITING PHENOMENA TO STUDY IN A BP NEW ELEMENTS IN A BURNING PLASMAS: SELF-HEATED-ALFVéNIC ALPHAS · HIGHLY NON-LINEAR INTERACTION OF ALPHA SELF-HEATING WITH STRONGLY COUPLED ADVANCED TOKAMAK

  1. Study of composite cement containing burned oil shale

    E-Print Network [OSTI]

    Dalang, Robert C.

    Study of composite cement containing burned oil shale Julien Ston Supervisors : Prof. Karen properties. SCMs can be by-products from various industries or of natural origin, such as shale. Oil shale correctly, give a material with some cementitious properties known as burned oil shale (BOS). This study

  2. Stellar Burning Falk Herwig, Alexander Heger, and Frank

    E-Print Network [OSTI]

    Herwig, Falk

    ]. In these objects, a thermonuclear runaway of the helium shell on top of an electron-degenerate core (a young White implications for the production of neutron- rich elements. log Tlog Teffeff Figure 1-- A thermonuclear runaway stellar conditions. We will include a stellar equation of state as well as thermonuclear burning (TN burn

  3. High Pressure Burn Rate Measurements on an Ammonium Perchlorate Propellant

    SciTech Connect (OSTI)

    Glascoe, E A; Tan, N

    2010-04-21T23:59:59.000Z

    High pressure deflagration rate measurements of a unique ammonium perchlorate (AP) based propellant are required to design the base burn motor for a Raytheon weapon system. The results of these deflagration rate measurements will be key in assessing safety and performance of the system. In particular, the system may experience transient pressures on the order of 100's of MPa (10's kPSI). Previous studies on similar AP based materials demonstrate that low pressure (e.g. P < 10 MPa or 1500 PSI) burn rates can be quite different than the elevated pressure deflagration rate measurements (see References and HPP results discussed herein), hence elevated pressure measurements are necessary in order understand the deflagration behavior under relevant conditions. Previous work on explosives have shown that at 100's of MPa some explosives will transition from a laminar burn mechanism to a convective burn mechanism in a process termed deconsolidative burning. The resulting burn rates that are orders-of-magnitude faster than the laminar burn rates. Materials that transition to the deconsolidative-convective burn mechanism at elevated pressures have been shown to be considerably more violent in confined heating experiments (i.e. cook-off scenarios). The mechanisms of propellant and explosive deflagration are extremely complex and include both chemical, and mechanical processes, hence predicting the behavior and rate of a novel material or formulation is difficult if not impossible. In this work, the AP/HTPB based material, TAL-1503 (B-2049), was burned in a constant volume apparatus in argon up to 300 MPa (ca. 44 kPSI). The burn rate and pressure were measured in-situ and used to calculate a pressure dependent burn rate. In general, the material appears to burn in a laminar fashion at these elevated pressures. The experiment was reproduced multiple times and the burn rate law using the best data is B = (0.6 {+-} 0.1) x P{sup (1.05{+-}0.02)} where B is the burn rate in mm/s and P is the pressure in units of MPa. Details of the experimental method, results and data analysis are discussed herein and briefly compared to other AP based materials that have been measured in this apparatus.

  4. Method and apparatus to measure the depth of skin burns

    DOE Patents [OSTI]

    Dickey, Fred M. (Albuquerque, NM); Holswade, Scott C. (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one implementation, time-dependent surface temperature data is taken from subsequent frames of a video signal from an infrared-sensitive video camera. When a thermal transient is created, e.g., by turning off a heat lamp directed at the skin surface, the following time-dependent surface temperature data can be used to determine the skin burn depth. Imaging and non-imaging versions of this device can be implemented, thereby enabling laboratory-quality skin burn depth imagers for hospitals as well as hand-held skin burn depth sensors the size of a small pocket flashlight for field use and triage.

  5. Wood Burning Combined Cycle Power Plant

    E-Print Network [OSTI]

    Culley, J. W.; Bourgeois, H. S.

    1984-01-01T23:59:59.000Z

    . Portland General Electric ~f Portland, Oregon was sponsored to perform the design study with project management provided by F. W. Braun Engineers of Hillsboro, Oregon. rpe Fern Engineering Division of Thomassen U.S. of Bourne, Massachusetts provided... the gas turbin~, process evaluation and control support. Hauge International of Portland, Maine provided tre design input for the ceramic heat exchanger. 782 ESL-IE-84-04-136 Proceedings from the Sixth Annual Industrial Energy Technology Conference...

  6. Annual Report FY2014 Alternative Fuels DISI Engine Research.

    SciTech Connect (OSTI)

    Sjoberg, Carl-Magnus G. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-01-01T23:59:59.000Z

    Due to concerns about future petroleum supply and accelerating climate change, increased engine efficiency and alternative fuels are of interest. This project contributes to the science-base needed by industry to develop highly efficient DISI engines that also beneficially exploit the different properties of alternative fuels. Lean operation is studied since it can provide higher efficiencies than traditional non-dilute stoichiometric operation. Since lean operation can lead to issues with ignition stability, slow flame propagation and low combustion efficiency, focus is on techniques that can overcome these challenges. Specifically, fuel stratification can be used to ensure ignition and completeness of combustion, but may lead to soot and NOx emissions challenges. Advanced ignition system and intake air preheating both promote ignition stability. Controlled end-gas autoignition can be used maintain high combustion efficiency for ultra-lean well-mixed conditions. However, the response of both combustion and exhaust emission to these techniques depends on the fuel properties. Therefore, to achieve optimal fuel-economy gains, the combustion-control strategies of the engine must adopt to the fuel being utilized.

  7. Effects of different fuels on a turbocharged, direct injection, spark ignition engine

    E-Print Network [OSTI]

    Negrete, Justin E

    2010-01-01T23:59:59.000Z

    The following pages describe the experimentation and analysis of two different fuels in GM's high compression ratio, turbocharged direct injection (TDI) engine. The focus is on a burn rate analysis for the fuels - gasoline ...

  8. Intrapreneurship as a tool for lean transformation : case study of VBS, intrapreneurship in IT space by Oladapo E. Bakare.

    E-Print Network [OSTI]

    Bakare, Oladapo E. (Oladapo Ehigie)

    2010-01-01T23:59:59.000Z

    Lean is heralded as the driving methodology for successful organizations ranging from defense to consumer industries. Its approach to reduction of waste and continuous process improvement allows a company to reduce cost, ...

  9. Reducing Heavy-Haul Railcar Maintenance Costs and Improving Terminal Performance Using Technology: A Lean Production Approach

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    or Six Sigma)" [3,4]. The current research focuses on the concept of lean production, as applied in 1990 in a study that found Toyota production techniques to be superior to other automotive

  10. A New Type of Steady and Stable, Laminar, Premixed Flame in Ultra-Lean, Hydrogen-Air Combustion

    E-Print Network [OSTI]

    Grcar, Joseph F

    2008-01-01T23:59:59.000Z

    411–422. [9] I. Glassman, Combustion, 3rd Edition, AcademicB. Lewis, G. von Elbe, Combustion, Flames and Explosions ofin Ultra-Lean, Hydrogen-Air Combustion Joseph F. Grcar a a

  11. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    Biomass burning pollution over Central Mexico Edited by: S.Biomass burning pollution over Central Mexico spheric ozonebenefits from air pollution control in Mexico City, Environ.

  12. M. Bahrami ENSC 461 (S 11) IC Engines 1 Air Standard Assumptions

    E-Print Network [OSTI]

    Bahrami, Majid

    is provided by burning fuel within the system boundaries, i.e., internal combustion engines. The following. Internal Combustion Engines 1. spark ignition engines: a mixture of fuel and air is ignited by a spark in (ideal) power cycles are internally reversible. 3- Combustion process is modeled by a heat

  13. Achieving Consistent Maximum Brake Torque with Varied Injection Timing in a DI Diesel Engine

    E-Print Network [OSTI]

    Kroeger, Timothy H

    2013-09-19T23:59:59.000Z

    The brake torque of a direct-injection diesel engine is known to plateau over a range of injection timings. Injection timing affects the engine’s ignition delay and the fractions of fuel which burn in premixed and diffusion modes. Therefore...

  14. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, Carol T. (Orinda, CA); Bender, Donald A. (Dublin, CA); Bowman, Barry R. (Livermore, CA); Burnham, Alan K. (Livermore, CA); Chesnut, Dwayne A. (Pleasanton, CA); Comfort, III, William J. (Livermore, CA); Guymon, Lloyd G. (Livermore, CA); Henning, Carl D. (Livermore, CA); Pedersen, Knud B. (Livermore, CA); Sefcik, Joseph A. (Tracy, CA); Smith, Joseph A. (Livermore, CA); Strauch, Mark S. (Livermore, CA)

    1993-01-01T23:59:59.000Z

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  15. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, C.T.; Bender, D.A.; Bowman, B.R.; Burnham, A.K.; Chesnut, D.A.; Comfort, W.J. III; Guymon, L.G.; Henning, C.D.; Pedersen, K.B.; Sefcik, J.A.; Smith, J.A.; Strauch, M.S.

    1993-03-09T23:59:59.000Z

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  16. Optical probe for determining the fat/lean interface in cuts of meat

    DOE Patents [OSTI]

    Weber, Thomas M.; Callow, Diane S.; Jones, James F.; Kuehl, Michael A.; Spletzer, Barry L.

    2005-02-22T23:59:59.000Z

    An apparatus and method for locating the boundary surface between a layer of fatty tissue and lean tissue in a cut of meat, such as beef, such as slabs of meat undergoing trimming and cutting in commercial meet processing facilitates. The invention exploits the fact that fatty tissue and lean tissue have significantly different responses to incident light energy. By gauging the degree to which a generated beam of light is scattered and reflected by the tissues under evaluation, the invention permits the character of the tissue to be ascertained. An incident beam of light, such as green light, is generated and transmitted to a probe tip, which tip is inserted into the cut of meat under investigation. The light beam is emitted into the meat tissues from the probe tip, and then is scattered and reflected by the tissues, whereupon some fraction of the emitted light returns to the probe tip. The returning light energy is transmitted to a detector; relative changes in the returning light transmitted to the detector permit the operator to determine when the probe tip is approaching or penetrating the fat/lean tissue interface.

  17. The Energy Institute Live Green, Burn Clean

    E-Print Network [OSTI]

    Lee, Dongwon

    Institute Topics CoveredTopics Covered Biodiesel Introduction to Biodiesel Some observations of biodiesel combustion in a Cummins ISB 5.9L MY2000 turbodiesel engine Sources of the "Biodiesel NOx" effect Fuel quality none of the fuel quality concerns associated with biodiesel Ethanol Efficiency and performance issues

  18. General Engineer (Chief Engineer)

    Broader source: Energy.gov [DOE]

    This position is located in the Office of the Manager. If selected for this position you will serve as a General Engineer (Chief Engineer) in the Office of the Manager for the Department of Energy,...

  19. Internal combustion engine

    DOE Patents [OSTI]

    Baker, Quentin A. (P.O. Box 6477, San Antonio, TX 78209); Mecredy, Henry E. (1630-C W. 6th, Austin, TX 78703); O'Neal, Glenn B. (6503 Wagner Way, San Antonio, TX 78256)

    1991-01-01T23:59:59.000Z

    An improved engine is provided that more efficiently consumes difficult fuels such as coal slurries or powdered coal. The engine includes a precombustion chamber having a portion thereof formed by an ignition plug. The precombustion chamber is arranged so that when the piston is proximate the head, the precombustion chamber is sealed from the main cylinder or the main combustion chamber and when the piston is remote from the head, the precombustion chamber and main combustion chamber are in communication. The time for burning of fuel in the precombustion chamber can be regulated by the distance required to move the piston from the top dead center position to the position wherein the precombustion chamber and main combustion chamber are in communication.

  20. Isothermal model of ICF burn with finite alpha range treatment

    E-Print Network [OSTI]

    Galloway, Conner Daniel (Conner Daniel Cross)

    2009-01-01T23:59:59.000Z

    A simple model for simulating deuterium tritium burn in inertial confinement fusion capsules is developed. The model, called the Isothermal Rarefaction Model, is zero dimensional (represented as ordinary differential ...

  1. A Next Step Burning Plasma Experiment Dale M. Meade

    E-Print Network [OSTI]

    Capability (more advanced) Burning Plasma Self-heating (Self organization) External- heating (control) Wave be Competitive with other Future Energy Sources EPRI Electric Supply Roadmap (1/99): Business as usual Impact

  2. Engineering Careers: Software Engineering

    E-Print Network [OSTI]

    Fenster, Sam

    of others When you screw up, you can do it on a massive scale #12;Totally unlike other engineering electronic device #12;Software tools Software engineers build their own tools The OS on your laptop;Just like other engineering Established body of knowledge Established practices Build on the work

  3. Solid State Electrochemical Sensors for Nitrogen Oxide (NOx) Detection in Lean Exhaust Gases

    E-Print Network [OSTI]

    Rheaume, Jonathan Michael

    2010-01-01T23:59:59.000Z

    W. Ragland, Combustion Engineering, (McGraw Hill: Boston,and Kenneth W. Ragland, Combustion Engineering, McGraw-Hill:

  4. Simulation of a Burning Plasma C. Kessel, PPPL

    E-Print Network [OSTI]

    , December 11-13, 2000 #12;FIRE Burning Plasma Discharge Simulation with TSC ELMy H-mode, N2.0, Q=6 Bt=10 T, R=2.0 m, Ip=6.5 MA #12;Burning Plasma Experiment Simultaneously Needs · L-H mode transition · Non · Alpha heating remains peaked in plasma core · Divertor can pump with large heat flux and ELMs #12;FIRE

  5. College of Engineering Engineering in

    E-Print Network [OSTI]

    Lin, Zhiqun

    in engineering education · Fundamental knowledge ­ practical skills ­ leadership values · Creating · InspiringCollege of Engineering Engineering in Social Context Jonathan Wickert Dean of Engineering #12;College of Engineering Game changers of the 20th century ... · Electrification · Automobile · Airplane

  6. Introduction Systems Engineering Fundamentals ENGINEERING

    E-Print Network [OSTI]

    Rhoads, James

    Introduction Systems Engineering Fundamentals i SYSTEMS ENGINEERING FUNDAMENTALS January 2001;Systems Engineering Fundamentals Introduction ii #12;Introduction Systems Engineering Fundamentals iii ............................................................................................................................................. iv PART 1. INTRODUCTION Chapter 1. Introduction to Systems Engineering Management

  7. Seeing the light about burning offsite

    SciTech Connect (OSTI)

    Iwanicki, S.; Schaefer, P.

    1997-11-01T23:59:59.000Z

    During the past year, three environmental engineers undertook three very different remediation efforts that each posed unique challenges. In one case, an environmental manager for a consulting firm, representing a trust with a number of different potentially responsible parties (PRPs), was faced with cleaning up a complex brownfield industrial site. In another instance, the environmental manager for a manufacturing firm had to manage the clean out of a warehouse containing outdates and out-of-spec consumer products. And in the third case, a remediation contractor needed to dispose of 1,800 tons of contaminated soil in a nine-week time period; this project also had unique packaging and transportation requirements. While each of these environmental engineers faced different circumstances, they are linked by their decision to use off-site waste incineration for the treatment of the materials generated by their remediation activities.

  8. The Energy Services Provider as Corporate Engineer: A Partnership in Developing a Productive, Sustainable Energy Management Program

    E-Print Network [OSTI]

    Imel, M.; Gromacki, M.

    2007-01-01T23:59:59.000Z

    . Burns & McDonnell (BMcD) is a large, multi-disciplined engineering firm with design-build and energy services capabilities. The firms have worked in the past on process design, environmental, and construction projects....

  9. Electrical Engineer (Field Engineering)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Sierra Nevada Region Maintenance Engineering N5500 114 Parkshore Drive Folsom, CA...

  10. Plasma-wall interaction data needs critical to a Burning Core Experiment (BCX)

    SciTech Connect (OSTI)

    Not Available

    1985-11-01T23:59:59.000Z

    The Division of Development and Technology has sponsored a four day US-Japan workshop ''Plasma-Wall Interaction Data Needs Critical to a Burning Core Experiment (BCX)'', held at Sandia National Laboratories, Livermore, California on June 24 to 27, 1985. The workshop, which brought together fifty scientists and engineers from the United States, Japan, Germany, and Canada, considered the plasma-material interaction and high heat flux (PMI/HHF) issues for the next generation of magnetic fusion energy devices, the Burning Core Experiment (BCX). Materials options were ranked, and a strategy for future PMI/HHF research was formulated. The foundation for international collaboration and coordination of this research was also established. This volume contains the first two of the five technical sessions. The first one being the BCX overview, the second on the BCX candidate materials. The remaining three sessions in volume two are on the plasma materials interaction issues, research facilities and small working group meeting on graphite, beryllium, advanced materials and future collaborations.

  11. Environmental Engineering

    E-Print Network [OSTI]

    Wang, Hai

    CEECivil & Environmental Engineering THE SONNY ASTANI DEPARTMENT OF CIVIL & ENVIRONMENTAL ENGINEERING #12;Civil and Environmental engineers are critical in addressing the needs of civilization and human origins. Civil and Environmental Engineers create, con- struct, and manage the infrastructure

  12. & Mechanical Engineering

    E-Print Network [OSTI]

    Zhou, Chongwu

    , robotics, and the development of new tools for integrated approaches to concurrent engineeringAME Aerospace & Mechanical Engineering #12;Aerospace and Mechanical Engineers design complex Engineering (AME) students conduct basic and applied research within and across the usual disciplinary

  13. Engineering Prestigious

    E-Print Network [OSTI]

    Saskatchewan, University of

    Engineering Studious Prestigious Adventurous Curious Ambitious Ingenious #12;TheCollegeof Engineering We are committed to innovation in all aspects of engineering education and research. We deliver an accredited professional education program that effectively prepares our students to become engineering

  14. College of Engineering ENGINEERING

    E-Print Network [OSTI]

    Mayfield, John

    and Treatment 10 Advancing Production in Large-Scale Industries 12 A New Kind of Solar Cell 14 News Bites #12College of Engineering CYCLONE ENGINEERING RESEARCH `SENSING SKIN' MAKES WIND ENERGY MORE COST. CONTENTS4 A Smarter Power Grid 6 Reducing the Cost of Wind Energy 8 Revolutionizing Disease Prevention

  15. SystemBurn: Principles of Design and Operation, Release 2.0

    SciTech Connect (OSTI)

    Kuehn, Jeffery A [ORNL; Poole, Stephen W [ORNL; Hodson, Stephen W [ORNL; Lothian, Josh [ORNL; Dobson, Jonathan D [ORNL; Reister, David B [ORNL; Lewkow, Nicholas R [ORNL; Glandon, Steven R [ORNL; Peek, Jacob T [ORNL

    2012-01-01T23:59:59.000Z

    As high performance computing technology progresses toward the progressively more extreme scales required to address critical computational problems of both national and global interest, power and cooling for these extreme scale systems is becoming a growing concern. A standardized methodology for testing system requirements under maximal system load and validating system environmental capability to meet those requirements is critical to maintaining system stability and minimizing power and cooling risks for high end data centers. Moreover, accurate testing permits the high end data center to avoid issues of under- or over-provisioning power and cooling capacity saving resources and mitigating hazards. Previous approaches to such testing have employed an ad hoc collection of tools, which have been anecdotally perceived to produce a heavy system load. In this report, we present SystemBurn, a software tool engineered to allow a system user to methodically create a maximal system load on large scale systems for the purposes of testing and validation.

  16. SystemBurn: Principles of Design and Operation Release 3.0

    SciTech Connect (OSTI)

    Dobson, Jonathan D [ORNL; Kuehn, Jeffery A [ORNL; Poole, Stephen W [ORNL; Hodson, Stephen W [ORNL; Glandon, Steven R [ORNL; Reister, David B [ORNL; Lewkow, Nicholas R [ORNL; Peek, Jacob T [ORNL

    2012-09-01T23:59:59.000Z

    As high performance computing technology progresses toward the progressively more extreme scales required to address critical computational problems of both national and global interest, power and cooling for these extreme scale systems is becoming a growing concern. A standardized methodology for testing system requirements under maximal system load and validating system environmental capability to meet those requirements is critical to maintaining system stability and minimizing power and cooling risks for high end data centers. Moreover, accurate testing permits the high end data center to avoid issues of under- or over-provisioning power and cooling capacity saving resources and mitigating hazards. Previous approaches to such testing have employed an ad hoc collection of tools, which have been anecdotally perceived to produce a heavy system load. In this report, we present SystemBurn, a software tool engineered to allow a system user to methodically create a maximal system load on large scale systems for the purposes of testing and validation.

  17. Experiments related to the resuspension of aerosols during hydrogen burns

    SciTech Connect (OSTI)

    Nelson, L.S.; Guay, K.P.

    1987-01-01T23:59:59.000Z

    We have performed seven ''add-on'' experiments in two large combustion facilities to investigate the capability of hydrogen burns to remove simulated structural and fission product aerosols previously deposited on small metal discs that have surfaces prototypical of those found in nuclear reactor containments. Our results suggest that hydrogen combustion provides an especially effective mechanism for removal (and, presumably, resuspension) of sedimented aerosols produced in a hypothetical nuclear reactor core-degradation or core-melting accident. The presence of condensing steam does not seem to assure adhesion of sedimented aerosols during hydrogen burns. Differences are exhibited between different surfaces as well as between types of aerosol. In-depth studies will be required to assess the impact exposure of sedimented aerosols to hydrogen burns might have on the radiological source term.

  18. Terry Fuller Engineering

    E-Print Network [OSTI]

    Gelfond, Michael

    Terry Fuller Petroleum Engineering Research Building Terry Fuller Petroleum Engineering Research Building Construction Engineering and Engineering Technology Construction Engineering and Engineering Technology Industrial Engineering Industrial Engineering Engineering Center Engineering Center Computer

  19. Maniatis suggests that the Leaning Tower illusion (figure 1a) is not an illusion of perspective, as proposed by us (Kingdom et al 2007a, 2007b), but a variant of the

    E-Print Network [OSTI]

    Kingdom, Frederick A. A.

    Maniatis suggests that the Leaning Tower illusion (figure 1a) is not an illusion of perspective that the Jastrow illusion is an example of simulta- neous size contrast, and that the Leaning Tower illusion is the orientation analog of the Jastrow. In other words the Leaning Tower illusion is an example of simultaneous

  20. Mechanical engineering COLLEGE of ENGINEERING

    E-Print Network [OSTI]

    Berdichevsky, Victor

    . Mechanical engineering is a broad, versatile and creative discipline concerned with conversion of energyMechanical engineering COLLEGE of ENGINEERING DepartmentofMechanicalEngineering CollegeofEngineering t Home to nation's first electric-drive vehicle engineering program and alternative energy technology

  1. What engineering courses are there? Automotive Engineering

    E-Print Network [OSTI]

    Sussex, University of

    Electrical and Electronic Engineering Electronic Engineering Mechanical Engineering BEng Automotive Engineering Computer Engineering Electrical and Electronic Engineering Electronic Engineering Mechanical's student perspective `I chose to study Electrical and Electronic Engineering at Sussex because

  2. College of Engineering and Science ENGINEERING

    E-Print Network [OSTI]

    Stuart, Steven J.

    College of Engineering and Science COLLEGE OF ENGINEERING AND SCIENCE The College of Engineering and Science offers advanced degrees in Automotive Engineering, Bioengineering, Biosystems Engineering, Chemi- cal Engineering, Chemistry, Civil Engineering, Computer Engineering, Computer Science, Digital

  3. College of Engineering and Science ENGINEERING

    E-Print Network [OSTI]

    Stuart, Steven J.

    58 College of Engineering and Science 58 COLLEGE OF ENGINEERING AND SCIENCE The College of Engineering and Science offers advanced degrees in Automotive Engineering, Bioengineering, Biosystems Engineering, Chemi- cal Engineering, Chemistry, Civil Engineering, Computer Engineering, Computer Science

  4. College of Engineering and Science ENGINEERING

    E-Print Network [OSTI]

    Stuart, Steven J.

    35 College of Engineering and Science COLLEGE OF ENGINEERING AND SCIENCE The College of Engineering and Science offers advanced degrees in Automotive Engineering, Bioengineering, Biosystems Engineering, Chemi- cal Engineering, Chemistry, Civil Engineering, Computer Engineering, Computer Science, Digital

  5. Mechanical and Manufacturing Engineering Petroleum Engineering Minor

    E-Print Network [OSTI]

    Calgary, University of

    of Chemical and Petroleum Engineering for their petroleum engineering minor. As well, mechanical engineeringMechanical and Manufacturing Engineering Petroleum Engineering Minor The Department of Mechanical and Manufacturing Engineering offers a minor in petroleum engineering within the mechanical engineering major

  6. Diesel fuel burner for diesel emissions control system

    DOE Patents [OSTI]

    Webb, Cynthia C.; Mathis, Jeffrey A.

    2006-04-25T23:59:59.000Z

    A burner for use in the emissions system of a lean burn internal combustion engine. The burner has a special burner head that enhances atomization of the burner fuel. Its combustion chamber is designed to be submersed in the engine exhaust line so that engine exhaust flows over the outer surface of the combustion chamber, thereby providing efficient heat transfer.

  7. Communication Support for the U. S. Burning Plasma Organization

    SciTech Connect (OSTI)

    Hegna, Chris [University of Wisconsin] [University of Wisconsin

    2014-02-05T23:59:59.000Z

    The role of this DOE grant was to provide administrative and software support for the U. S. Burning Plasma Organization (USBPO). The USBPO is a grassroots organization of fusion plasma scientists that concentrates broadly on issues of interest in burning plasma physics in general with a particular emphasis on the needs of the ITER program. The particular role of this grant was to provide support of the communication needs of the USBPO primarily through the administration and maintenance of the USBPO server, the public USBPO website, e-mail lists and numerous members-only discussion forums and mail lists.

  8. A neural network approach to burn-in

    E-Print Network [OSTI]

    Clifford, Nancy Lynn

    1995-01-01T23:59:59.000Z

    A NEURAL NETWORK APPROACH TO BURN-IN A Thesis by NANCY LYNN CLIFFORD Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1995 Major... Subject: Industrial Enginccring A NEURAL NETWORK APPROACH TO BURN-IN A Thesis NANCY LYNN CLIFFORD Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style and content by...

  9. Response of selected vertebrate populations to burning of Gulf cordgrass

    E-Print Network [OSTI]

    Tewes, Michael Edward

    1982-01-01T23:59:59.000Z

    sites were established at Rob 8 Bessie Welder Wildlife Refuge and Aransas National Wildlife Refuge to monitor responses of various wildlife populations to the prescribed burning of gulf cordgrass (~S~art'L~a ~st~e) ~ Research design utilized a... site was established at the Rob and Bessie Welder Wildlife Refuge (80 km north of Corpus Christi) and a 2nd at the Aransas National Wildlife Refuge (NWR) (120 km northeast of Corpus Christi) ~ Also, I attended a prescribed burn at San Bernard NWR...

  10. Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels

    E-Print Network [OSTI]

    Hayes, A C; Nieto, Michael Martin; WIlson, W B

    2011-01-01T23:59:59.000Z

    This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

  11. Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels

    E-Print Network [OSTI]

    A. C. Hayes; H. R. Trellue; Michael Martin Nieto; W. B. WIlson

    2011-10-03T23:59:59.000Z

    This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

  12. Variable valve timing in a homogenous charge compression ignition engine

    DOE Patents [OSTI]

    Lawrence, Keith E.; Faletti, James J.; Funke, Steven J.; Maloney, Ronald P.

    2004-08-03T23:59:59.000Z

    The present invention relates generally to the field of homogenous charge compression ignition engines, in which fuel is injected when the cylinder piston is relatively close to the bottom dead center position for its compression stroke. The fuel mixes with air in the cylinder during the compression stroke to create a relatively lean homogeneous mixture that preferably ignites when the piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. The present invention utilizes internal exhaust gas recirculation and/or compression ratio control to control the timing of ignition events and combustion duration in homogeneous charge compression ignition engines. Thus, at least one electro-hydraulic assist actuator is provided that is capable of mechanically engaging at least one cam actuated intake and/or exhaust valve.

  13. Examination of the Entry to Burn and Burn Control for the ITER 15 MA Baseline and Other Scenarios

    SciTech Connect (OSTI)

    Kesse, Charles E. [PPPL; Kim, S-H. [ITER; Koechl, F. [EURATOM-OAW/ATI

    2014-09-01T23:59:59.000Z

    The entry to burn and flattop burn control in ITER will be a critical need from the first DT experiments. Simulations are used to address time-dependent behavior under a range of possible conditions that include injected power level, impurity content (W, Ar, Be), density evolution, H-mode regimes, controlled parameter (Wth, Pnet, Pfusion), and actuator (Paux, fueling, fAr), with a range of transport models. A number of physics issues at the L-H transition require better understanding to project to ITER, however, simulations indicate viable control with sufficient auxiliary power (up to 73 MW), while lower powers become marginal (as low as 43 MW).

  14. Analysis of combustion in a small homogeneous charge compression assisted ignition engine

    E-Print Network [OSTI]

    237 Analysis of combustion in a small homogeneous charge compression assisted ignition engine H Ma1 characteristics to homogeneous charge compression ignition (HCCI) engines. Difficulties such as unknown ignition timing and the polytropic index have been addressed by combining both heat release and mass fraction burn

  15. Analysis of Tracer Dispersion During a Prescribed Forest Burn

    E-Print Network [OSTI]

    Collins, Gary S.

    . Additionally, a sulfur hexafluoride (SF6) tracer dispersion test was conducted by releasing SF6 from a line source within the burn and measuring SF6 concentrations at the supertower. Supertower Instrumentation (TGAPS) connected to a CO2 closed path Licor LI-6262 and a SF6 detector (7 inlet locations) ·Cambell CSAT

  16. More than words : a biography of Daniel Francis Burns

    E-Print Network [OSTI]

    Burns, Matthew R. (Matthew Robert)

    2005-01-01T23:59:59.000Z

    Daniel Francis Burns was born in Ireland in 1888 and immigrated to the United States in 1912. He married Mary O'Neill in 1923 and had a family of seven children. He worked as a police officer in the Boston Police Department ...

  17. Potential Materials Science Benefits from a Burning Plasma

    E-Print Network [OSTI]

    Potential Materials Science Benefits from a Burning Plasma Science Experiment S.J. Zinkle Oak Ridge;Introduction · The main materials science advances from a BPSX would occur during the R&D phase prior to construction ­e.g., CIT/BPX, ITER · Materials science opportunities during operation of a BPSX would likely

  18. BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY

    E-Print Network [OSTI]

    Dukes, Jeffrey

    BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY JEFFREY S. DUKES Department of as a vast store of solar energy from which society meets >80% of its current energy needs. Here, using of ancient solar energy decline, humans are likely to use an increasing share of modern solar resources. I

  19. Atmospheric dispersion index for prescribed burning. Forest Service research paper

    SciTech Connect (OSTI)

    Lavdas, L.G.

    1986-10-01T23:59:59.000Z

    A numerical index that estimates the atmosphere's capacity to disperse smoke from prescribed burning is described. The physical assumptions and mathematical development of the index are given in detail. A preliminary interpretation of dispersion index values is offered. A FORTRAN subroutine package for computing the index is included.

  20. Sodium and sulfur release and recapture during black liquor burning

    SciTech Connect (OSTI)

    Frederick, W.J.; Iisa, K.; Wag, K.; Reis, V.V.; Boonsongsup, L.; Forssen, M.; Hupa, M.

    1995-08-01T23:59:59.000Z

    The objective of this study was to provide data on sulfur and sodium volatilization during black liquor burning, and on SO2 capture by solid sodium carbonate and sodium chloride. This data was interpreted and modeled into rate equations suitable for use in computational models for recovery boilers.

  1. LAMINAR BURNING VELOCITY OF GASOLINES WITH ADDITION OF ETHANOL

    E-Print Network [OSTI]

    Boyer, Edmond

    1 LAMINAR BURNING VELOCITY OF GASOLINES WITH ADDITION OF ETHANOL P. Dirrenberger1 , P.A. Glaude*1 WITH ADDITION OF ETHANOL P. Dirrenberger1 , P.A. Glaude*1 , R. Bounaceur1 , H. Le Gall1 , A. Pires da Cruz2 , A. The influence of ethanol as an oxygenated additive has been investigated for these two fuels and has been found

  2. Introduction Engineering

    E-Print Network [OSTI]

    Banbara, Mutsunori

    Environmental Engineering A study to create a social living space rich in amenity, convenience, and harmony with environment. Civil Engineering Engineering of Human Safety Engineering of Environmental Symbiosis A study34 Introduction Guide Entrance Life Career Inquiries Engineering Graduate School/ Faculty

  3. Recovery Boiler Modeling: An Improved Char Burning Model Including Sulfate Reduction and Carbon Removal

    E-Print Network [OSTI]

    Grace, T. M.; Wag, K. J.; Horton, R. R.; Frederick, W. J.

    gasification, reactions between oxygen and combustibles in the boundary layer, and integration of sulfate reduction and sulfide reoxidation into the char burning process. Simulations using the model show that for typical recovery boiler conditions, char burning...

  4. Activities of the US Burning Plasma Organization Vice-Chair of Council,

    E-Print Network [OSTI]

    is the principal coordinating body for MFE burning plasma research · It exists to advance the scientific to advance burning plasma research · Began with the 2006-7 ITER Design Review ­ US MFE community contributed

  5. Ac#vi#es of the US Burning Plasma Organiza#on

    E-Print Network [OSTI]

    =ons · USBPO ­ Coordinates US burning plasma research, to advance scien=fic understanding USBPO organizes the US Fusion Energy Science community to support burning plasma research 5 Charles Greenfield (Director) Amanda Hubbard (Deputy Director) Nermin

  6. Developing shrub fire behaviour models in an oceanic climate: Burning in the British Uplands 

    E-Print Network [OSTI]

    Davies, Gwilym Matthew; Legg, Colin; Smith, Adam; MacDonald, Angus

    2006-01-01T23:59:59.000Z

    Prescribed burning of moorland vegetation in the UK is used to provide habitat for red grouse, a game bird, and to improve grazing for sheep and deer. The peak time of fire risk corresponds to the normal legal burning ...

  7. Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning

    E-Print Network [OSTI]

    Hosseini, Seyedehsan

    2012-01-01T23:59:59.000Z

    during the open combustion of biomass in the laboratory, J.J. R. , and Veres, P. : Biomass burning in Siberia andOpen burning of agricultural biomass: Physical and chemical

  8. SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG

    E-Print Network [OSTI]

    Gong, Xianghong

    SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG Abstract. We #12;24 DANIEL BURNS AND XIANGHONG GONG Let M be a real analytic hypersurface defined by r = 0

  9. Sexual reproduction of European aspen (Populus tremula L.) at prescribed burned site: the effects

    E-Print Network [OSTI]

    Helsinki, University of

    -1 Sexual reproduction of European aspen (Populus tremula L.) at prescribed burned site September 2005 Key words: Boreal forest, European aspen, Prescribed burning, Seed ecology, Seedbed conditions, Seedling emergence and survival Abstract. Aspen (Populus tremula) is capable of reproducing both

  10. A numerical investigation into the anomalous slight NOx increase when burning biodiesel; A new (old) theory

    E-Print Network [OSTI]

    Ban-Weiss, George A.; Chen, J.Y.; Buchholz, Bruce A.; Dibble, Robert W.

    2007-01-01T23:59:59.000Z

    G. et al, 2005. The Biodiesel Handbook. AOCS Publishing,x Increase When Burning Biodiesel; A New (Old) Theory GeorgeIncrease When Burning Biodiesel; A New (Old) Theory. Fuel

  11. A New Type of Steady and Stable, Laminar, Premixed Flame in Ultra-Lean, Hydrogen-Air Combustion

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    A New Type of Steady and Stable, Laminar, Premixed Flame in Ultra-Lean, Hydrogen-Air Combustion in the development of combustion science. Several aspects of these two-dimensional flame cells are identified for premixed combustion when the other types of idealized flames are inapplicable. 1 #12;Nomenclature fuel

  12. Study of Reasons for the Adoption of Lean Production in the Automobile Industry: Questions for the AEC Industries

    E-Print Network [OSTI]

    Tommelein, Iris D.

    Study of Reasons for the Adoption of Lean Production in the Automobile Industry: Questions IN THE AUTOMOBILE INDUSTRY: QUESTIONS FOR THE AEC INDUSTRIES Scott Featherston1 ABSTRACT The primary intent in opting for an alternative? Were there pressures that gave automobile producers no option but to alter

  13. Terry Fuller Engineering

    E-Print Network [OSTI]

    Gelfond, Michael

    Terry Fuller Petroleum Engineering Research Building Terry Fuller Petroleum Engineering Research Marsha Sharp Center for Student Athletics Construction Engineering and Engineering Technology Construction Engineering and Engineering Technology Industrial Engineering Industrial Engineering Engineering

  14. college of engineering Undergraduate

    E-Print Network [OSTI]

    and computer engineering » environmental engineering » industrial engineering » Manufacturing engineering » electrical and computer engineering » engineering Management* » environmental engineering » industrial engineering (ce) and construction engineering management (ceM). industry placement for ceM graduates regularly

  15. Effect of inactive impurities on the burning of ICF targets

    SciTech Connect (OSTI)

    Gus'kov, S. Yu. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Il'in, D. V.; Sherman, V. E. [St. Petersburg State Engineering Institute (Russian Federation)

    2011-12-15T23:59:59.000Z

    The efficiency of thermonuclear burning of the spherical deuterium-tritium (DT) plasma of inertial confinement fusion (ICF) targets in the presence of low-Z impurities (such as lithium, carbon, or beryllium) with arbitrary concentrations is investigated. The effect of impurities produced due to the mixing of the thermonuclear fuel with the material of the structural elements of the target during its compression on the process of target burning is studied, and the possibility of using solid noncryogenic thermonuclear fuels in ICF targets is analyzed. Analytical dependences of the ignition energy and target thermonuclear gain on the impurity concentration are obtained. The models are constructed for homogeneous and inhomogeneous plasmas for the case in which the burning is initiated in the central heated region of the target and then propagates into the surrounding relatively cold fuel. Two possible configurations of an inhomogeneous plasma, namely, an isobaric configuration formed in the case of spark ignition of the target and an isochoric configuration formed in the case of fast ignition, are considered. The results of numerical simulations of the burning of the DT plasma of ICF targets in a wide range of impurity concentrations are presented. The simulations were performed using the TEPA one-dimensional code, in which the thermonuclear burning kinetics is calculated by the Monte Carlo method. It is shown that the strongest negative effect related to the presence of impurities is an increase in the energy of target ignition. It is substantiated that the most promising solid noncryogenic fuel is DT hydride of beryllium (BeDT). The requirements to the plasma parameters at which BeDT can be used as a fuel in noncryogenic ICF targets are determined. Variants of using noncryogenic targets with a solid thermonuclear fuel are proposed.

  16. Major Conclusions of the MFE Study 1. Why a burning plasma Navratil

    E-Print Network [OSTI]

    of scientific maturity that we are ready to undertake the essential step of burning plasma research. · Present

  17. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    example, coal burning and petrochemical industries are alsofuel-oil fired) and petrochemical complex in Tula, north of

  18. ENGINEERING UNDERGRADUATE

    E-Print Network [OSTI]

    Walter, M.Todd

    ENGINEERING UNDERGRADUATE HANDBOOK Fall 2013 #12;Name: ____________________________________________________ E-mail: ____________________________________________________ College of Engineering Cornell University ABET Accredited Programs for 2013­14 ABET (Accreditation Board for Engineering and Technology

  19. Engineering Why engineering at Sussex?

    E-Print Network [OSTI]

    Sussex, University of

    (Hons) in Automotive Engineering (with an industrial placement year) BEng (Hons) in Automotive Engineering BEng (Hons) in Automotive Engineering (with an industrial placement year) MEng (Hons) in Computer Engineering MEng (Hons) in Computer Engineering (with an industrial placement year) BEng (Hons) in Computer

  20. Prescribed Burning Costs: Trends and Influences in the National Forest System1

    E-Print Network [OSTI]

    Standiford, Richard B.

    Prescribed Burning Costs: Trends and Influences in the National Forest System1 David A. Cleaves,2 Service's National Forest System prescribed burning activity and costs are examined. Fuels management officers from 95 National Forests reported costs and acreage burned for 4 types of prescribed fire

  1. Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow

    E-Print Network [OSTI]

    Palmer, Paul

    Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

  2. Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa

    E-Print Network [OSTI]

    Highwood, Ellie

    Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa Steven Met Office C-130 within a distinct biomass burning plume during the Southern AFricAn Regional science, and P. R. Buseck, Evolution of biomass burning aerosol properties from an agricultural fire in southern

  3. Experimental investigation of burning velocities of ultra-wet methane-air-steam mixtures

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , steam, burning velocity, chemiluminescence, OH Introduction In ultra-wet gas turbines, the heatExperimental investigation of burning velocities of ultra-wet methane-air-steam mixtures Eric Abstract Global burning velocities of methane-air-steam mixtures are measured on prismatic laminar Bunsen

  4. Spatial and temporal scale issues in determining biomass burning regimes in Bolivia and Peru

    E-Print Network [OSTI]

    Spatial and temporal scale issues in determining biomass burning regimes in Bolivia and Peru A. V and Bolivia to analyse the spatial distribution of burning and its intra- and inter-annual variability Santa Cruz, Bolivia and in north-west Peru). Particular attention was paid to biomass burning in high

  5. Faculty of Engineering & Design Civil Engineering

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    the requirements of engineers in an aeronautical field. Technical knowledge from university gave me a goodFaculty of Engineering & Design Civil Engineering Chemical Engineering Electronic & Electrical Engineering Integrated Mechanical & Electrical Engineering Mechanical Engineering Industrial Placements #12

  6. Interdisciplinary Engineer

    Broader source: Energy.gov [DOE]

    This position is located in the Transmission Engineering (TEL) organization of Engineering and Technical Services (TE), Transmission Services (T), Bonneville Power Administration (BPA). In this...

  7. Chief Engineer

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will provide engineering expertise and guidance to multidiscipline engineering and scientific elements throughout the Office of River Protection and is a...

  8. Catalytic combustion of very lean mixtures in a reverse flow reactor using an internal electrical heater

    SciTech Connect (OSTI)

    Cunill, F.; Beld, L. van de; Westerterp, K.R. [Univ. of Twente, Enschede (Netherlands)] [Univ. of Twente, Enschede (Netherlands)

    1997-10-01T23:59:59.000Z

    An experimental study of the reverse flow reactor, equipped with an internal electrical heater, for the autothermal combustion of very dilute organic compounds, in particular ethene, propane, and their mixtures, has been carried out. The influence of several operating parameters like electrical heater power, cycle period, chemical character, and concentration of the pollutants on the maximum temperature and on the shape of temperature profiles in the stationary state is discussed. Experimental results show that an internal electrical heater can be successfully used to oxidize completely very lean mixtures which would not be able to maintain an autothermal process only by themselves. The predictions with a heterogeneous one-dimensional model without using fit parameters show a good agreement with experiments except for critical situations.

  9. Catalytic igniters and their use to ignite lean hydrogen-air mixtures

    DOE Patents [OSTI]

    McLean, William J. (Oakland, CA); Thorne, Lawrence R. (Livermore, CA); Volponi, Joanne V. (Livermore, CA)

    1988-01-01T23:59:59.000Z

    A catalytic igniter which can ignite a hydrogen-air mixture as lean as 5.5% hydrogen with induction times ranging from 20 s to 400 s, under conditions which may be present during a loss-of-liquid-coolant accident at a light water nuclear reactor comprises (a) a perforate catalytically active substrate, such as a platinum coated ceramic honeycomb or wire mesh screen, through which heated gases produced by oxidation of the mixture can freely flow and (b) a plurality of thin platinum wires mounted in a thermally conductive manner on the substrate and positioned thereon so as to be able to receive heat from the substrate and the heated gases while also in contact with unoxidized gases.

  10. Regression equations that predict the yield of pork four lean cuts and primals as influenced by cutting method and trim level

    E-Print Network [OSTI]

    Grams, David Wayne

    1993-01-01T23:59:59.000Z

    levels of 1. 27 and . 64 cm of external fat including a partially skinned ham and picnic shoulder, along with separable lean from the four lean cuts. Grisdale et al. (1984a) reported fat-standardized lean as a percentage of the carcass weight..., a bootjack is formed in the belly at a 20 degree angle. The foot was removed perpendicular to the length of the shank 1. 27 cm below the proximal end of the tuber calcis. Pelvic fat, flank musde, and lymph glands and associated fat were removed...

  11. Measurements of ultrafine particles from a gas-turbine burning biofuels

    SciTech Connect (OSTI)

    Allouis, C.; Beretta, F.; Minutolo, P.; Pagliara, R. [Istituto di Ricerche sulla Combustione, CNR, Piazzale V. Tecchio, 80, 80125 Napoli (Italy); Sirignano, M.; Sgro, L.A.; D'Anna, A. [Dipartimento di Ingegneria Chimica, Universita di Napoli Federico II, Piazzale V. Tecchio, 80, 80125 Napoli (Italy)

    2010-04-15T23:59:59.000Z

    Measurements of ultrafine particles have been performed at the exhaust of a low emission microturbine for power generation. This device has been fuelled with liquid fuels, including a commercial diesel oil, a mixture of the diesel oil with a biodiesel and kerosene, and tested under different loads. Primarily attention has been focused on the measurements of the size distribution functions of the particles emitted from the system by using particle differential mobility analysis. A bimodal size distribution function of the particle emitted has been found in all the examined conditions. Burning diesel oil, the first mode of the size distribution function of the combustion-formed particles is centered at around 2-3 nm, whereas the second mode is centered at about 20-30 nm. The increase of the turbine load and the addition of 50% of biodiesel has not caused changes in the shape of size distribution of the particles. A slightly decrease of the amount of particle formed has been found. By using kerosene the amount of emitted particles increases of more than one order of magnitude. Also the shape of the size distribution function changes with the first mode shifted towards larger particles of the order of 8-10 nm but with a lower emission of larger 20-30 nm particles. Overall, in this conditions, the mass concentration of particles is increased respect to the diesel oil operation. Particle sizes measured with the diesel oil have been compared with the results on a diesel engine operated in the same power conditions and with the same fuel. Measurements have showed that the mean sizes of the formed particles do not change in the two combustion systems. However, diesel engine emits a number concentration of particles more than two orders of magnitude higher in the same conditions of power and with the same fuel. By running the engine in more premixed-like conditions, the size distribution function of the particles approaches that measured by burning kerosene in the microturbine indicating that the distribution function of the sizes of the emitted particles can be strongly affected by combustion conditions. (author)

  12. Staged direct injection diesel engine

    DOE Patents [OSTI]

    Baker, Quentin A. (San Antonio, TX)

    1985-01-01T23:59:59.000Z

    A diesel engine having staged injection for using lower cetane number fuels than No. 2 diesel fuel. The engine includes a main fuel injector and a pilot fuel injector. Pilot and main fuel may be the same fuel. The pilot injector injects from five to fifteen percent of the total fuel at timings from 20.degree. to 180.degree. BTDC depending upon the quantity of pilot fuel injected, the fuel cetane number and speed and load. The pilot fuel injector is directed toward the centerline of the diesel cylinder and at an angle toward the top of the piston, avoiding the walls of the cylinder. Stratification of the early injected pilot fuel is needed to reduce the fuel-air mixing rate, prevent loss of pilot fuel to quench zones, and keep the fuel-air mixture from becoming too fuel lean to become effective. In one embodiment, the pilot fuel injector includes a single hole for injection of the fuel and is directed at approximately 48.degree. below the head of the cylinder.

  13. ENGINEERING SYSTEMS SUSTAINABILITY AS AN ORGANIZING DESIGN PRINCIPLE FOR

    E-Print Network [OSTI]

    Entekhabi, Dara

    in Automotive Aluminum d. Lean Sustainment Initiative (LSI) for the US Air Force: Tracing the Repair

  14. SUPPLY CHAIN ENGINEER (DISTRIBUTION OPERATIONS) Description

    E-Print Network [OSTI]

    Heller, Barbara

    frameworks i.e., HPT (High Performance Teams), Lean, Six Sigma). Partner with and coach team members in the use of structured improvement system techniques like HPT, Lean, Six Sigma and other techniques Sigma, Lean Manufacturing, Statistical Process Control, TQM, ISO 9000, process mapping etc. Strong

  15. Towards high performing hospital enterprise architectures : elevating hospitals to lean enterprise thinking

    E-Print Network [OSTI]

    Fradinho, Jorge Miguel dos Santos

    2011-01-01T23:59:59.000Z

    This research is motivated by the National Academy of Engineering and the Institute of Medicine's joint call for research in healthcare, promoting the application of principles, tools, and research from engineering ...

  16. USC Viterbi School of Engineering

    E-Print Network [OSTI]

    Southern California, University of

    ); Chemical Engineering (Nanotechnology); Chemical Engineering (Petroleum Engineer- ing); Chemical Engineering (Biochemical Engineering); Biomedical (Electrical Engineer- ing); Biomedical (Mechanical Engineering); Chemical Engineering; Chemical Engineer- ing (Biochemical Engineering); Chemical Engineering (Environmental Engineering

  17. FACULTY OF ENGINEERING Engineering

    E-Print Network [OSTI]

    Barthelat, Francois

    and research to mitigate climate change. Star scientists Another interesting feature of the new facility is its and research facility on the fifth floor of the Macdonald Engineering Building is significantly advancing our practical applications inspired by recent advances in nanotechnology, molecular biology and green chemistry

  18. Civil Engineering Environmental Engineering

    E-Print Network [OSTI]

    Anderson, Jim

    ) : Southampton University #12;5 Canada Wharf Station, London Underground · An underground chamber in clay- building · Communication #12;12 THE CONSTRCUTIONARIUM First Year Student Field Class The students design. Renovation of old canals and tunnels Design of new storage reservoirs #12;17 Civil Engineering

  19. HERMES: A Model to Describe Deformation, Burning, Explosion, and Detonation

    SciTech Connect (OSTI)

    Reaugh, J E

    2011-11-22T23:59:59.000Z

    HERMES (High Explosive Response to MEchanical Stimulus) was developed to fill the need for a model to describe an explosive response of the type described as BVR (Burn to Violent Response) or HEVR (High Explosive Violent Response). Characteristically this response leaves a substantial amount of explosive unconsumed, the time to reaction is long, and the peak pressure developed is low. In contrast, detonations characteristically consume all explosive present, the time to reaction is short, and peak pressures are high. However, most of the previous models to describe explosive response were models for detonation. The earliest models to describe the response of explosives to mechanical stimulus in computer simulations were applied to intentional detonation (performance) of nearly ideal explosives. In this case, an ideal explosive is one with a vanishingly small reaction zone. A detonation is supersonic with respect to the undetonated explosive (reactant). The reactant cannot respond to the pressure of the detonation before the detonation front arrives, so the precise compressibility of the reactant does not matter. Further, the mesh sizes that were practical for the computer resources then available were large with respect to the reaction zone. As a result, methods then used to model detonations, known as {beta}-burn or program burn, were not intended to resolve the structure of the reaction zone. Instead, these methods spread the detonation front over a few finite-difference zones, in the same spirit that artificial viscosity is used to spread the shock front in inert materials over a few finite-difference zones. These methods are still widely used when the structure of the reaction zone and the build-up to detonation are unimportant. Later detonation models resolved the reaction zone. These models were applied both to performance, particularly as it is affected by the size of the charge, and to situations in which the stimulus was less than that needed for reliable performance, whether as a result of accident, hazard, or a fault in the detonation train. These models describe the build-up of detonation from a shock stimulus. They are generally consistent with the mesoscale picture of ignition at many small defects in the plane of the shock front and the growth of the resulting hot-spots, leading to detonation in heterogeneous explosives such as plastic-bonded explosives (PBX). The models included terms for ignition, and also for the growth of reaction as tracked by the local mass fraction of product gas, {lambda}. The growth of reaction in such models incorporates a form factor that describes the change of surface area per unit volume (specific surface area) as the reaction progresses. For unimolecular crystalline-based explosives, the form factor is consistent with the mesoscale picture of a galaxy of hot spots burning outward and eventually interacting with each other. For composite explosives and propellants, where the fuel and oxidizer are segregated, the diffusion flame at the fuel-oxidizer interface can be interpreted with a different form factor that corresponds to grains burning inward from their surfaces. The form factor influences the energy release rate, and the amount of energy released in the reaction zone. Since the 19th century, gun and cannon propellants have used perforated geometric shapes that produce an increasing surface area as the propellant burns. This helps maintain the pressure as burning continues while the projectile travels down the barrel, which thereby increases the volume of the hot gas. Interior ballistics calculations use a geometric form factor to describe the changing surface area precisely. As a result, with a suitably modified form factor, detonation models can represent burning and explosion in damaged and broken reactant. The disadvantage of such models in application to accidents is that the ignition term does not distinguish between a value of pressure that results from a shock, and the same pressure that results from a more gradual increase. This disagrees with experiments, where

  20. ENVIRONMENTAL ENGINEERING

    E-Print Network [OSTI]

    Walter, M.Todd

    knowledge in environmental engineering; · Share cutting edge research and new information and ideas throughENVIRONMENTAL ENGINEERING UNDERGRADUATE HANDBOOK Cornell University Department of Biological and Environmental Engineering School of Civil and Environmental Engineering enve.cornell.edu 2013-2014 #12

  1. Biomedical Engineering

    E-Print Network [OSTI]

    engineering is a discipline that advances knowledge in engineering, biology and medicine, and improves human#12;Biomedical Engineering Dr. Kevin Lear, Director, Undergraduate Program Ms. Brett Eppich Beal, Adviser 5280 CSU Engineering Showcase January 29, 2011 #12;SBME ­ Who are We? Director ­ Stuart Tobet

  2. ENVIRONMENTAL ENGINEERING

    E-Print Network [OSTI]

    ENVIRONMENTAL ENGINEERING www.cee.pdx.edu What do environmental engineers do? Civil and Environmental Engineering (CEE) is an exciting, challenging, and dynamic field that is critical to our quality of life. Environmental engineers help manage and protect natural resources like water supplies as well

  3. Shockwave Engine: Wave Disk Engine

    SciTech Connect (OSTI)

    None

    2010-01-14T23:59:59.000Z

    Broad Funding Opportunity Announcement Project: MSU is developing a new engine for use in hybrid automobiles that could significantly reduce fuel waste and improve engine efficiency. In a traditional internal combustion engine, air and fuel are ignited, creating high-temperature and high-pressure gases which expand rapidly. This expansion of gases forces the engine’s pistons to pump and powers the car. MSU’s engine has no pistons. It uses the combustion of air and fuel to build up pressure within the engine, generating a shockwave that blasts hot gas exhaust into the blades of the engine’s rotors causing them to turn, which generates electricity. MSU’s redesigned engine would be the size of a cooking pot and contain fewer moving parts—reducing the weight of the engine by 30%. It would also enable a vehicle that could use 60% of its fuel for propulsion.

  4. FACULTYOF ENGINEERING GRADUATE SCHOOLOFENGINEERING

    E-Print Network [OSTI]

    Banbara, Mutsunori

    ENGINEERING ELECTRICAL AND ELECTRONIC ENGINEERING MECHANICAL ENGINEERING CHEMICAL SCIENCE AND ENGINEERING of Architecture and Civil Engineering, Department of Electric and Electronic Engineering, Department of Mechanical six departments: Architecture, Civil Engineering, Electrical and Electronic Engineering, Mechanical

  5. Development of Optimal Catalyst Designs and Operating Strategies for Lean NOx Reduction in Coupled LNT-SCR Systems

    SciTech Connect (OSTI)

    Harold, Michael; Crocker, Mark; Balakotaiah, Vemuri; Luss, Dan; Choi, Jae-Soon; Dearth, Mark; McCabe, Bob; Theis, Joe

    2013-09-30T23:59:59.000Z

    Oxides of nitrogen in the form of nitric oxide (NO) and nitrogen dioxide (NO{sub 2}) commonly referred to as NO{sub x}, is one of the two chemical precursors that lead to ground-level ozone, a ubiquitous air pollutant in urban areas. A major source of NO{sub x} is generated by equipment and vehicles powered by diesel engines, which have a combustion exhaust that contains NO{sub x} in the presence of excess O{sub 2}. Catalytic abatement measures that are effective for gasoline-fueled engines such as the precious metal containing three-way catalytic converter (TWC) cannot be used to treat O2-laden exhaust containing NO{sub x}. Two catalytic technologies that have emerged as effective for NO{sub x} abatement are NO{sub x} storage and reduction (NSR) and selective catalytic reduction (SCR). NSR is similar to TWC but requires much larger quantities of expensive precious metals and sophisticated periodic switching operation, while SCR requires an on-board source of ammonia which serves as the chemical reductant of the NO{sub x}. The fact that NSR produces ammonia as a byproduct while SCR requires ammonia to work has led to interest in combining the two together to avoid the need for the cumbersome ammonia generation system. In this project a comprehensive study was carried out of the fundamental aspects and application feasibility of combined NSR/SCR. The project team, which included university, industry, and national lab researchers, investigated the kinetics and mechanistic features of the underlying chemistry in the lean NOx trap (LNT) wherein NSR was carried out, with particular focus on identifying the operating conditions such as temperature and catalytic properties which lead to the production of ammonia in the LNT. The performance features of SCR on both model and commercial catalysts focused on the synergy between the LNT and SCR converters in terms of utilizing the upstream-generated ammonia and alternative reductants such as propylene, representing the hydrocarbon component of diesel exhaust. First-principle models of the LNT and SCR converters, which utilized the mechanistic-based kinetics and realistic treatments of the flow and transport processes, in combination with bench-scale reactor experiments helped to identify the best designs for combining the NSR and SCR catalysts over a range of operating conditions encountered in practice. This included catalysts having multiple zones and layers and additives with the focus on determining the minimal precious metal component needed to meet emission abatement targets over a wide range of operating conditions. The findings from this study provide diesel vehicle and catalyst companies valuable information to develop more cost effective diesel emissions catalysts which helps to expand the use of more fuel efficient diesel power. The fundamental modeling and experimental tools and findings from this project can be applied to catalyst technologies used in the energy and chemical industries. Finally, the project also led to training of several doctoral students who were placed in research jobs in industry and academia.

  6. Gulf Cordgrass Production, Utilization, and Nutritional Value Following Burning.

    E-Print Network [OSTI]

    Oefinger, R.D.; Scifres, F.J.

    1977-01-01T23:59:59.000Z

    compared to the same criteria on the unburned areas. Soils on each site were characterized relative to selected chemical and physical characteristics . The study areas were evaluated, based on the selected variables, approximately at monthly intervals... and species of Acacia) on the uplands to the west. Soil Characteristics Physical and Chemical Components The loamy sand sites, burned in fall 1974 were characterized by a near neutral soil surface, becoming more basic to 30 centimeters deep (Table 1...

  7. Data Summary Report D-Area Burning/Rubble Pits

    SciTech Connect (OSTI)

    Palmer, E.R. [Westinghouse Savannah River Company, AIKEN, SC (United States)

    1994-10-01T23:59:59.000Z

    The purpose of this report is to verify that all analytical data collected at the D-Area Burning/Rubble Pits at the Savannah River Site for use in developing risk assessment and potential remediation procedures have been validated at the appropriate level. Any discrepancies or reasons why the data should be rejected for this purpose will be addressed. This report documents the data validation procedures used by Environmental Monitoring Section, Exploration Resources, and RUST Environment {ampersand} Infrastructure for Assigning qualifiers.

  8. Early cavity growth during forward burn. [Hoe Creek III problems

    SciTech Connect (OSTI)

    Shannon, M.J.; Thorsness, C.B.; Hill, R.W.

    1980-07-03T23:59:59.000Z

    During the early portion of the forward burn phase of the Hoe Creek III field experiment, the cavity progagated rapidly down the deviated borehole and to the top of the coal seam. As a first step to understanding this phenomena we have conducted small scale coal block experiments. Drying as well as combustion tests were performed. This paper describes the test hardware and the experimental results.

  9. PULSATIONS IN HYDROGEN BURNING LOW-MASS HELIUM WHITE DWARFS

    SciTech Connect (OSTI)

    Steinfadt, Justin D. R. [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93106 (United States); Bildsten, Lars [Kavli Institute for Theoretical Physics and Department of Physics, Kohn Hall, University of California, Santa Barbara, CA 93106 (United States); Arras, Phil, E-mail: jdrs@physics.ucsb.ed, E-mail: bildsten@kitp.ucsb.ed, E-mail: arras@virginia.ed [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904 (United States)

    2010-07-20T23:59:59.000Z

    Helium core white dwarfs (WDs) with mass M {approx}< 0.20 M {sub sun} undergo several Gyr of stable hydrogen burning as they evolve. We show that in a certain range of WD and hydrogen envelope masses, these WDs may exhibit g-mode pulsations similar to their passively cooling, more massive carbon/oxygen core counterparts, the ZZ Cetis. Our models with stably burning hydrogen envelopes on helium cores yield g-mode periods and period spacings longer than the canonical ZZ Cetis by nearly a factor of 2. We show that core composition and structure can be probed using seismology since the g-mode eigenfunctions predominantly reside in the helium core. Though we have not carried out a fully nonadiabatic stability analysis, the scaling of the thermal time in the convective zone with surface gravity highlights several low-mass helium WDs that should be observed in search of pulsations: NLTT 11748, SDSS J0822+2753, and the companion to PSR J1012+5307. Seismological studies of these He core WDs may prove especially fruitful, as their luminosity is related (via stable hydrogen burning) to the hydrogen envelope mass, which eliminates one model parameter.

  10. Models of neutron star atmospheres enriched with nuclear burning ashes

    E-Print Network [OSTI]

    Nättilä, Joonas; Kajava, Jari J E; Poutanen, Juri

    2015-01-01T23:59:59.000Z

    Low-mass X-ray binaries hosting neutron stars (NS) exhibit thermonuclear (type-I) X-ray bursts, which are powered by unstable nuclear burning of helium and/or hydrogen into heavier elements deep in the NS "ocean". In some cases the burning ashes may rise from the burning depths up to the NS photosphere by convection, leading to the appearance of the metal absorption edges in the spectra, which then force the emergent X-ray burst spectra to shift toward lower energies. These effects may have a substantial impact on the color correction factor $f_c$ and the dilution factor $w$, the parameters of the diluted blackbody model $F_E \\approx w B_E(f_c T_{eff})$ that is commonly used to describe the emergent spectra from NSs. The aim of this paper is to quantify how much the metal enrichment can change these factors. We have developed a new NS atmosphere modeling code, which has a few important improvements compared to our previous code required by inclusion of the metals. The opacities and the internal partition func...

  11. Burning tires for fuel and tire pyrolysis: air implications

    SciTech Connect (OSTI)

    Clark, C.; Meardon, K.; Russell, D.

    1991-12-01T23:59:59.000Z

    The document was developed in response to increasing inquiries into the environmental impacts of burning waste tires in process equipment. The document provides information on the use of whole, scrap tires and tire-derived-fuel (TDF) as combustion fuel and on the pyrolysis of scrap tires. The use of whole tires and TDF as a primary fuel is discussed for dedicated tire-to-energy facilities. The use of whole tires and TDF as a supplemental fuel is discussed for cement manufacturing plants, electric utilities, pulp and paper mills, and other industrial processes. The focus of the document is on the impact of burning whole tires and TDF on air emissions. Test data are presented and, in most instances, compared with emissions under baseline conditions (no tires or TDF in the fuel). The control devices used in these industries are discussed and, where possible, their effectiveness in controlling emissions from the burning of whole tires or TDF is described. In addition, the report provides information on the processes themselves that use whole tires or TDF, the modifications to the processes that allowed the use of whole tires or TDF, and the operational experiences of several facilities using whole tires or TDF. The economic feasibility of using whole tires and TDF for the surveyed industries is discussed. Finally, contacts for State waste tire programs are presented.

  12. Nuclear fusion in dense matter: Reaction rate and carbon burning

    E-Print Network [OSTI]

    L. R. Gasques; A. V. Afanasjev; E. F. Aguilera; M. Beard; L. C. Chamon; P. Ring; M. Wiescher; D. G. Yakovlev

    2005-06-16T23:59:59.000Z

    In this paper we analyze the nuclear fusion rate between equal nuclei for all five different nuclear burning regimes in dense matter (two thermonuclear regimes, two pycnonuclear ones, and the intermediate regime). The rate is determined by Coulomb barrier penetration in dense environments and by the astrophysical S-factor at low energies. We evaluate previous studies of the Coulomb barrier problem and propose a simple phenomenological formula for the reaction rate which covers all cases. The parameters of this formula can be varied, taking into account current theoretical uncertainties in the reaction rate. The results are illustrated for the example of the ^{12}C+^{12}C fusion reaction. This reaction is very important for the understanding of nuclear burning in evolved stars, in exploding white dwarfs producing type Ia supernovae, and in accreting neutron stars. The S-factor at stellar energies depends on a reliable fit and extrapolation of the experimental data. We calculate the energy dependence of the S-factor using a recently developed parameter-free model for the nuclear interaction, taking into account the effects of the Pauli nonlocality. For illustration, we analyze the efficiency of carbon burning in a wide range of densities and temperatures of stellar matter with the emphasis on carbon ignition at densities rho > 10^9 g/cc.

  13. High frequency electromagnetic burn monitoring for underground coal gasification

    SciTech Connect (OSTI)

    Deadrick, F.J.; Hill, R.W.; Laine, E.F.

    1981-06-17T23:59:59.000Z

    This paper describes the use of high frequency electromagnetic waves to monitor an in-situ coal gasification burn process, and presents some recent results obtained with the method. Both the technique, called HFEM (high frequency electromagnetic) probing, the HFEM hardware used are described, and some of the data obtained from the LLNL Hoe Creek No. 3 underground coal gasification experiment conducted near Gillette, Wyoming are presented. HFEM was found to be very useful for monitoring the burn activity found in underground coal gasification. The technique, being a remote sensing method which does not require direct physical contact, does not suffer from burnout problems as found with thermocouples, and can continue to function even as the burn progresses on through the region of interest. While HFEM does not replace more conventional instrumentation such as thermocouples, the method does serve to provide data which is unobtainable by other means, and in so doing it complements the other data to help form a picture of what cannot be seen underground.

  14. Engineering Instutute Seminar Series

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

    Engineering Institute Engineering Instutute Seminar Series Engineering Instutute Seminar Series Calendar Contact Professional Staff Assistant Jutta Kayser Engineering Institute...

  15. An Assessment of the Degree of Implementation of the Lean Aerospace Initiative Principles and Practices within the US Aerospace and Defense Industry

    E-Print Network [OSTI]

    Shaw, Thomas E.

    This report is a formal documentation of the results of an assessment of the degree to which Lean Principles and Practices have been implemented in the US Aerospace and Defense Industry. An Industry Association team prepared ...

  16. The implementation dynamics of continuous improvement throughout the corporate hierarchy based on lean six sigma at DTE energy by Timothy David Quinn.

    E-Print Network [OSTI]

    Quinn, Timothy David

    2011-01-01T23:59:59.000Z

    This dissertation comprises a case study and formal simulation model of DTE Energy's Lean Six Sigma continuous-improvement (CI) program from its inception in 1998 through the end of 2009. The case history is based on ...

  17. Faculty of Engineering Aerospace Engineering

    E-Print Network [OSTI]

    Faculty of Engineering Aerospace Engineering Canada's aerospace industry is one of the largest. One of the key factors that will continue this success is a steady stream of engineering talent.uwindsor.ca/mame Rigorous, Enriching Programs Our new Aerospace Engineering program at Windsor is an optional stream within

  18. College of Engineering EGR Engineering

    E-Print Network [OSTI]

    MacAdam, Keith

    College of Engineering EGR Engineering KEY: # = new course * = course changed = course dropped University of Kentucky 2013-2014 Undergraduate Bulletin 1 EGR 101 INTRODUCTION TO ENGINEERING. (4) This course introduces the engineering profession and the skills and expectations required for success

  19. D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona, July 2005 INTEGRATED REAL-TIME CONTROL

    E-Print Network [OSTI]

    D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona, July 2005 INTEGRATED REAL. Sartori, and many other JET-EFDA Contributors D. Moreau #12;D. Moreau IEA W60 Burning Plasma Physics AT burning plasma integrated control #12;D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona

  20. BIOMEDICAL ENGINEERING CHEMICAL AND BIOLOGICAL ENGINEERING

    E-Print Network [OSTI]

    Heller, Barbara

    BIOMEDICAL ENGINEERING CHEMICAL AND BIOLOGICAL ENGINEERING CIVIL, ARCHITECTURAL, AND ENVIRONMENTAL ENGINEERING ELECTRICAL AND COMPUTER ENGINEERING MECHANICAL, MATERIALS, AND AEROSPACE ENGINEERING COLLEGE OF ENGINEERING IIT ARMOUR #12;WHY ENGINEERINGAT IIT ARMOUR? Five Departments. One Distinctive Educational

  1. SCHOOL OF ENGINEERING TECHNOLOGY Surveying Engineering

    E-Print Network [OSTI]

    Thomas, Andrew

    SCHOOL OF ENGINEERING TECHNOLOGY Surveying Engineering Technology practice FOCUSED WHY SURVEYING ENGINEERING TECHNOLOGY? Surveying engineering technology is a practice- focused program that provides students ENGINEERING TECHNOLOGY DEGREE? A graduate with a surveying engineering technology degree can work as a party

  2. Special Issue Article Proc IMechE Part D

    E-Print Network [OSTI]

    Papalambros, Panos

    : 6 June 2012 Introduction Homogeneous charge compression ignition (HCCI) engines have shown much ignition (CI) engines, HCCI offers increased efficiency owing to very-lean-burn combustion, but without. The shortcomings of HCCI combustion are that its operating area is limited in both the load range and the speed

  3. NO{sub x} and CO emissions from a pulse combustor operating in a lean premixed mode

    SciTech Connect (OSTI)

    Keller, J.O.; Bramlette, T.T.; Barr, P.K.; Alvarez, J.

    1993-04-01T23:59:59.000Z

    Emission levels below 5.0 ppM NO{sub x}, with corresponding levels of 75 ppM CO (corrected to 3% O{sub 2}), were achieved in a pulse combustor operating in a lean premixed mode. Both NO{sub x} and CO concentrations were invariant with the total mass flow rate, but NO{sub x} and CO concentrations did vary with the rate of microscopic mixing.

  4. College of Engineering MNG Mining Engineering

    E-Print Network [OSTI]

    MacAdam, Keith

    (Concurrent), PHY 232, engineering standing. MNG 302 MINERALS PROCESSING LABORATORY. (1) ApplicationCollege of Engineering MNG Mining Engineering KEY: # = new course * = course changed = course ENGINEERING. (1) Orientationtotheminingengineeringprofession

  5. 112 COLLEGE OF ENGINEERING AND ENGINEERING TECHNOLOGY College of Engineering and Engineering

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    112 COLLEGE OF ENGINEERING AND ENGINEERING TECHNOLOGY College of Engineering and Engineering requirements in interdisciplinary studies, engineering majors need only one interdisciplinary studies course of Engineering and Engineering Technology offer baccalaureate programs leading to the degree Bachelor of Science

  6. Synergies of High-Efficiency Clean Combustion and Lean NOx Trap...

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

    for the Department of Energy * Engine: - 1.7-liter, 4-cylinder - Variable Geometry Turbo - Upgraded Exhaust Header - Model-Based Full-Pass Control System - Advanced Fuel...

  7. Carbonaceous aerosols from prescribed burning of a boreal forest ecosystem

    SciTech Connect (OSTI)

    Mazurek, M.A. (Brookhaven National Lab., Upton, NY (United States)); Cofer, W.R. III; Levine, J.S. (National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center)

    1990-10-01T23:59:59.000Z

    The identity and ambient mass concentrations of radiatively important carbonaceous aerosols were measured for a boreal forest prescribed burn conducted in northern Ontario, CAN in August 1989. Nonsize-segregated airborne particles were collected for smoldering-fire and full-fire conditions using a helicopter sampling platform. Total carbon (TC), organic carbon (OC) and elemental carbon (EC) were measured. Smoke plume mass concentrations of the OC and EC particles were greatest for full-fire conditions and had ranges of 1.560 to 2.160 mg/m{sup {minus}1} (OC) and 0.120 to 0.160 mg/m{sup {minus}3} (EC) with OC:EC ratios of 10 to 18, respectively. Smoldering fire conditions showed smoke plume OC and EC levels of 0.570--1.030 mg/m{sup {minus}3} (OC) and 0.006--0.050 mg/m{sup {minus}3} (EC) and much higher ratios of OC:EC (21 to 95). These aerosol data indicate the formation of EC particles is greatest during full-fire combustion of boreal forest material relative to smoldering combustion. However, EC particles comprise a minor fraction of the particulate carbon smoke aerosols for both full-fire and smoldering conditions; the major component of carbonaceous smoke aerosols emitted during the prescribed burn is OC. Overall, the OC and EC in-plume smoke aerosol data show nonuniform production of these particles during various stages of the prescribed burn, and major differences in the type of carbonaceous aerosol that is generated (OC versus EC).

  8. Value Engineering

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2002-12-30T23:59:59.000Z

    To establish Department of Energy (DOE) value engineering policy that establishs and maintains cost-effective value procedures and processes.

  9. Impact of prescribed burning on Gulf Coast tick populations

    E-Print Network [OSTI]

    Oldham, Thomas Walter

    1983-01-01T23:59:59.000Z

    of Advisory Committee; Or. C. J. Scffres Th GlfC*stt1k (~Abl 0 tt K h) i pst f g animals along the Gul f Coast and as far inland as Oklahoma and Kansas. Prescribed burns during winter, fall or spring on four plant communities at the Rob and Bessie Welder... encouragement and expertise with the ticks; J. W. Stuth and D. N. Ueckert for their patience during this study and to each for their comments on this thesis. I thank the Rob and Bessie Welder Wildlife Foundation for their generous financial support...

  10. On the burning of his library, and On medical travel

    E-Print Network [OSTI]

    Bartholin, Thomas

    1961-01-01T23:59:59.000Z

    lections of an old man, and what he has to say of physicians, hospitals, sugar-refining, viticulture, his own investigations of Aetna, somnolent Salerno and pious therapy are all of interest and some historical value. His advice to his sons and nephew... to Theodoras from bk. 11, ep. 94. Flames carried off the Pierian Penates of the poet Bar tholin. Does this please the Muses and you Phoebus? Thanks to the favor of the god, this great crime did not burn both domicile and dominus. A sacrifice was made of my...

  11. Height Replacement of Selected Woody Plants Following Burning or Shredding.

    E-Print Network [OSTI]

    Hamilton, W.T.; Kitchen, L.M.; Scifres, C.J.

    1981-01-01T23:59:59.000Z

    periods. %e e ' riment was designed as a rm=trd cmnplete+bloCL deskgn with t a o repticatbms. T h g S i g h empioped 9 h e - 'hie -wewin bo:*iriny of the l&a ' dfded o P - the plots (Scifps 1ss81. i?w ~rmeYIt l~p-m~tr lLed ltjeIt'trcwMs, 3.T by...- tions accounted for 87 pecmt of the variation in height change of blackbrush acacia. Burning did -@t affect height increase based on comparison with unburned blackbrush acacia. Blackbrush acacia height replacement was slower than that of honey mes...

  12. Lab scientists Burns, Hay named new AAAS Fellows

    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 PowerCherries 82981-1cnHigh SchoolIn12electron 9 5 - -/e),,s -Labgrants DecisionLab schoolBurns,

  13. Simulation of lean NOx trap performance with microkinetic chemistry and without mass transfer.

    SciTech Connect (OSTI)

    Larson, Rich; Daw, C. Stuart (Oak Ridge National Laboratory, Knoxville, TN); Pihl, Josh A. (Oak Ridge National Laboratory, Knoxville, TN); Chakravarthy, V. Kalyana (Oak Ridge National Laboratory, Knoxville, TN)

    2011-08-01T23:59:59.000Z

    A microkinetic chemical reaction mechanism capable of describing both the storage and regeneration processes in a fully formulated lean NO{sub x} trap (LNT) is presented. The mechanism includes steps occurring on the precious metal, barium oxide (NO{sub x} storage), and cerium oxide (oxygen storage) sites of the catalyst. The complete reaction set is used in conjunction with a transient plug flow reactor code to simulate not only conventional storage/regeneration cycles with a CO/H{sub 2} reductant, but also steady flow temperature sweep experiments that were previously analyzed with just a precious metal mechanism and a steady state code. The results show that NO{sub x} storage is not negligible during some of the temperature ramps, necessitating a re-evaluation of the precious metal kinetic parameters. The parameters for the entire mechanism are inferred by finding the best overall fit to the complete set of experiments. Rigorous thermodynamic consistency is enforced for parallel reaction pathways and with respect to known data for all of the gas phase species involved. It is found that, with a few minor exceptions, all of the basic experimental observations can be reproduced with these purely kinetic simulations, i.e., without including mass-transfer limitations. In addition to accounting for normal cycling behavior, the final mechanism should provide a starting point for the description of further LNT phenomena such as desulfation and the role of alternative reductants.

  14. ENGINEERING INTERNATIONAL

    E-Print Network [OSTI]

    University of Technology, Sydney

    COURSE GUIDE 2013 UTS: ENGINEERING INTERNATIONAL UNDERGRADUATE w w w.eng.uts.edu.au #12;2 / ENGINEERING IN AUSTRALIA Internationally, Australian universities have a reputation for high quality research developed close links with many international institutions, particularly in Asia. ENGINEERING IN SYDNEY

  15. University , Engineering

    E-Print Network [OSTI]

    Zakharov, Leonid E.

    , Princeton Plasma Physics Laboratory Presented at Seminar of Department of Nuclear Engineering Massachusetts{AC020{76{CHO{3073. Leonid E. Zakharov, Department of Nuclear Engineering, MIT , Feb.26, 2001, Cambridge acting on the guide wall. This design concept opens opportunities for nuclear engineers and technologists

  16. Design and development of Stirling engines for stationary power generation applications in the 500 to 3000 horsepower range

    SciTech Connect (OSTI)

    None

    1980-02-01T23:59:59.000Z

    Initial work in a project on the design and development of Stirling engines for stationary integrated energy systems is reported. Information is included on a market assessment, design methodology, evaluation of engine thermodynamic performance, and preliminary system design. It is concluded that Stirling engines employing clean fossil fuels cannot compete with diesel engines. However, combustion technology exists for the successful burning of coal-derived fuels in a large stationary stirling engine. High thermal efficiency is predicted for such an engine and further development work is recommended. (LCL)

  17. Engineering and Physics Optimization of Breed and Burn Fast Reactor Systems

    SciTech Connect (OSTI)

    Michael J. Driscoll; Pavel Hejzlar; Peter Yarsky; Dan Wachs; Kevan Weaver; Ken Czerwinski; Michael Pope; Cliff Davis; Theron Marshall; James Parry

    2005-12-09T23:59:59.000Z

    This project is organized under four major tasks (each of which has two or more subtasks) with contributions among the three collaborating organizations (MIT, INEEL and ANL-West): Task A: Core Physics and Fuel Cycle; Task B: Core Thermal Hydraulics; Task C: Plant Design Task; and D: Fuel Design.

  18. Department of Industrial and Manufacturing Engineering Fall 2012 Automation of Test Sample Burning

    E-Print Network [OSTI]

    Demirel, Melik C.

    with Meadoweld RS-100 Abrasive Rail Saw In-house fabricated aluminium workstation ramp with industrial matting Motion-Sensor LED Battery Powered Spotlights #12;

  19. The wrong kind of general: the resignation of union brigadier general William W. Burns

    E-Print Network [OSTI]

    Ward, David Earl

    2005-08-29T23:59:59.000Z

    . 8 Brian K. Burton, Extraordinary Circumstances: The Seven Days Battles (Bloomington: Indiana University Press, 2001), 223. 9 William Wallace Burns Papers, Cushing Memorial Library, Texas A&M University, College Station, Texas (hereafter Burns... in his massive history of the California regiment, but he cannot provide any clues as to why the general sank into obscurity instead of going on to greater things.7 Other historians who mention Burns at all, such as Brian K. Burton in Extraordinary...

  20. affordable near-term burning-plasma: Topics by E-print Network

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

    Physics and Fusion Websites Summary: ons USBPO - Coordinates US burning plasma research, to advance scienfic understanding USBPO organizes the US Fusion Energy Science...

  1. Observations of nonmethane organic compounds during ARCTAS - Part 1: Biomass burning emissions and plume enhancements

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    burning in Siberia and Kazakhstan as an important source forgrassland fires in Kazakhstan (Warneke et al. , 2009) duringfires from East Asia/Kazakhstan. Likewise there was no sta-

  2. Plasma Proteome Response to Severe Burn Injury Revealed by 18O...

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

    worldwide. Here, we present the first quantitative proteomics investigation of the blood plasma proteome response to severe burn injury by comparing the plasma protein...

  3. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    al. : Biomass burning pollution over Central Mexico Editedburning and urban air pollution over the Central MexicanJ. : The characterisation of pollution aerosol in a changing

  4. Intra-catalyst Reductant Chemistry in Lean NOx Traps: A Study...

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

    Engine DOC LNT Engine Out Bench (SS1) UEGO1 UEGO2 UEGO3 SS2 NOx Sensor 1 NOx Sensor 2 Turbo 14 LNT 12 LNT 34 LNT FTIR GCMS bag (dilute) Air Bench 2 SpaciMS Tailpipe Bench...

  5. FACULTY OF ENGINEERING FALL Engineering

    E-Print Network [OSTI]

    Barthelat, Francois

    -Engineering Scholar Mathieu Brochu uses the Spark Plasma Sintering Press in his lab to research improved methods

  6. College of Engineering College of Engineering

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    of the undergraduate engineering programs will be able to: · Apply knowledge of mathematics, science, and engineeringCollege of Engineering College of Engineering Office in Engineering Building, Room 202 (970) 491 UNDERGRADUATE MAJORS Biomedical Engineering Chemical and Biological Engineering Civil Engineering Computer

  7. Results of the PDF{trademark} test burn at Clifty Creek Station

    SciTech Connect (OSTI)

    Johnson, S.A.; Knottnerus, B.

    1996-10-01T23:59:59.000Z

    Process Derived Fuel (PDF{sup TM}) from the ENCOAL process is different from other coals used to generate steam for the power industry. Although PDF{sup TM} is currently produced from Powder River Basin (PRB) subbituminous coal, the coal structure changes during processing. Compared to the parent coal, PDF{sup TM} contains much less moisture and slightly lower volatile matter resulting in a higher heating value and higher ash per million Btu. These coal properties can potentially benefit utility boiler performance. Combining the high combustion reactivity typical of PRB coals with significantly reduced moisture should produce higher flame zone temperatures and shorter flames. As a result, some boilers may experience increased steam production, better burnout, or lower excess air. The objective of the work contracted to Quinapoxet Engineering was to quantify the impacts of burning PDF{sup TM} on boiler performance at Clifty Creek Unit 3. A unique optical temperature monitor called SpectraTemp was used to measure changes in furnace exit gas temperature (FEGT) with time and boiler operating parameters for both PDF{sup TM} blends as well as a baseline coal blend consisting of 60% PRB coal, 20% Ohio coal, and 20% low-volatile eastern bituminous coal from Virginia. FEGT was then related to net plant heat rate, NO{sub x} emissions, and electrostatic precipitator performance.

  8. Chemical and Petroleum Engineering Petroleum Engineering Minor

    E-Print Network [OSTI]

    Calgary, University of

    electives in Petroleum Reservoir Engineering and Petroleum Production Engineering Chemical and Petroleum Engineering Petroleum Engineering Minor Students their skills by taking a minor in petroleum engineering. Energy is the largest

  9. College of Engineering ME Mechanical Engineering

    E-Print Network [OSTI]

    MacAdam, Keith

    College of Engineering ME Mechanical Engineering KEY: # = new course * = course changed = course ENGINEERING. (3) This course introduces the Mechanical Engineering profession including the skills and expectations required for success. Engineering applications of calculus are also presented. Prereq or concur

  10. Whitacre College of Engineering Industrial Engineering Department

    E-Print Network [OSTI]

    Gelfond, Michael

    Whitacre College of Engineering Industrial Engineering Department Department Chair and Professor of Industrial Engineering. The Industrial Engineering Department at Texas Tech University has a distinguished industrial engineering education and provide appropriate service to the department, university

  11. civil engineering College of Engineering and Mines

    E-Print Network [OSTI]

    Hartman, Chris

    civil engineering College of Engineering and Mines Department of Civil and Environmental's degree program can include courses in environmental engineering, engineering management and other areas. An advanced degree in environmental engineering administered within the civil en- gineering department

  12. Homogenous charge compression ignition engine having a cylinder including a high compression space

    DOE Patents [OSTI]

    Agama, Jorge R.; Fiveland, Scott B.; Maloney, Ronald P.; Faletti, James J.; Clarke, John M.

    2003-12-30T23:59:59.000Z

    The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fuel mixes with air in the cylinder as the power piston advances to create a relatively lean homogeneous mixture that preferably ignites when the power piston is relatively close to the top dead center position. However, if the ignition event occurs either earlier or later than desired, lowered performance, engine misfire, or even engine damage, can result. Thus, the present invention divides the homogeneous charge between a controlled volume higher compression space and a lower compression space to better control the start of ignition.

  13. college of engineering Undergraduate

    E-Print Network [OSTI]

    Tullos, Desiree

    . Civil & Construction Engineering Dedicated to advancing knowledge in the built environment to bettercollege of engineering FACT SHEET Undergraduate » Bioengineering » chemical engineering » civil engineering » computer Science » construction engineering Management » ecological engineering » electrical

  14. Applied Catalysis B: Environmental 38 (2002) 243248 Discovery of new fuel-lean NO reduction catalyst

    E-Print Network [OSTI]

    Senkan, Selim M.

    2002-01-01T23:59:59.000Z

    the production of more fuel effi- cient up to 25%--gasoline engines that operate under excess air conditions [1 laboratories which impeded the de- termination of useful insights regarding the reactivity trends of materials

  15. The Caw Burn SUDS: performance of a settlement pond/wetland SUDS retrofit Kate Heal1*

    E-Print Network [OSTI]

    Heal, Kate

    ) to remediate pollution of the Caw Burn by runoff from the Houston Industrial Estate, Livingston, Scotland-study of a retrofit SUDS constructed in 1996 to remediate pollution in the Caw Burn originating in runoff from runoff from the Houston Industrial Estate, where construction commenced in the 1960s, and two residential

  16. Microstructural Characterization of High Burn-up Mixed Oxide Fast Reactor Fuel

    SciTech Connect (OSTI)

    Melissa C. Teague; Brian P. Gorman; Steven L. Hayes; Douglas L. Porter; Jeffrey King

    2013-10-01T23:59:59.000Z

    High burn-up mixed oxide fuel with local burn-ups of 3.4–23.7% FIMA (fissions per initial metal atom) were destructively examined as part of a research project to understand the performance of oxide fuel at extreme burn-ups. Optical metallography of fuel cross-sections measured the fuel-to-cladding gap, clad thickness, and central void evolution in the samples. The fuel-to-cladding gap closed significantly in samples with burn-ups below 7–9% FIMA. Samples with burn-ups in excess of 7–9% FIMA had a reopening of the fuel-to-cladding gap and evidence of joint oxide-gain (JOG) formation. Signs of axial fuel migration to the top of the fuel column were observed in the fuel pin with a peak burn-up of 23.7% FIMA. Additionally, high burn-up structure (HBS) was observed in the two highest burn-up samples (23.7% and 21.3% FIMA). The HBS layers were found to be 3–5 times thicker than the layers found in typical LWR fuel. The results of the study indicate that formation of JOG and or HBS prevents any significant fuel-cladding mechanical interaction from occurring, thereby extending the potential life of the fuel elements.

  17. Butterfly species richness and community composition in forests affected by ENSO-induced burning and habitat

    E-Print Network [OSTI]

    Mooers, Arne

    shown to be sensitive to global climate change (Dennis 1993); non-migrat@hotmail.com. Department of Biological Sciences, Simon Fraser University, Burnaby, B.C. Canada V5A 1S6. 1 To whom surrounded by the burned forest this indicates that the habitat (burned or unburned) overrides geographical

  18. Reducing burn-in voltage loss in polymer solar cells by increasing the polymer crystallinity

    E-Print Network [OSTI]

    McGehee, Michael

    period. This burn-in degradation is a severe limita- tion for the efficiency of organic photovoltaic of organic photovoltaics. Several different degradation mechanisms of organic solar cells can to be managed. This burn-in degradation is caused by light-induced traps and its characteristics depend on which

  19. Issues in "Burning Plasma Science" S. J. Zweben, D. S. Darrow

    E-Print Network [OSTI]

    development issues => big issue: local burn control in an AT · Our conclusions · Alternate path #12;Burning, not fusion energy development (i.e. reactor-relevance) General issues: What are the interesting plasma a viable fusion reactor (or, should it be)? #12;What are Fusion Energy Development Issues Which Could

  20. On the Galois cohomology of ideal class groups David Burns and Soogil Seo

    E-Print Network [OSTI]

    Bushnell, Colin J.

    1 On the Galois cohomology of ideal class groups David Burns and Soogil Seo Abstract. We use â??etale # . For each such M we also #12; 2 David Burns and Soogil Seo write M [0] for the complex C · which has C 0 = M