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1

Advanced Conservation Systems | Open Energy Information  

Open Energy Info (EERE)

Conservation Systems Conservation Systems Jump to: navigation, search Logo: Advanced Conservation Systems Inc. Name Advanced Conservation Systems Inc. Address 42622 N. 7th Street East Place Lancaster, California Zip 93535 Product Solar power systems, products Year founded 1983 Phone number (661) 945-4545 Website http://www.avsolar.com/ Coordinates 34.657478°, -118.116149° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":34.657478,"lon":-118.116149,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

Advanced Systems  

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

Advanced Systems: Advanced Systems: high Performance fenestration systems Research areas: Research activities to improve the performance of windows and other fenestration products must address window systems issues as well as Glazing Materials research. LBNL activities in the area of Advanced Systems include research at both the product level and the building envelope and building systems levels. Highly insulating windows - using non structural center layers Lower cost solutions to more insulating three layer glazing systems, with the potential to turn windows in U.S. heating dominated residential applications into net-energy gainers. Highly Insulating Window Frames In collaboration with the Norwegian University of Science and Technology, we are researching the potentials for highly insulating window frames. Our initial work examines European frames with reported U-factors under 0.15 Btu/hr-ft2-F. Future research aims to analyze these designs, verify these performance levels and ensure that procedures used to calculate frame performance are accurate.

3

Supersymmetric non conservative systems  

E-Print Network [OSTI]

We give the generalization of a recent variational formulation for nonconservative classical mechanics, for fermionic and sypersymmetric systems. Both cases require slightly modified boundary conditions. The supersymmetric version is given in the superfield formalism. The corresponding Noether theorem is formulated. As expected, like the energy, the supersymmetric charges are not conserved. Examples are discussed.

Martnez-Prez, N E

2015-01-01T23:59:59.000Z

4

Advanced Systems  

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

Optimal gap width for double and triple glazing systems Optimal gap width for double and triple glazing systems Glazing systems in the US are commonly designed with a 1/2 " (12.7 mm) gap. The optimal gap width depends on many factors, such as gas fill (air, argon, krypton), the use of Low-e coatings, the environmental conditions (temperature difference across the window), and the calculation standard used. NFRC standard conditions are -18 C (-0.4 F) outside, and 21 C (69.8 F) inside. The calculation standard used in the US is based on the ISO 15099 standard. European standard conditions are 0 C (32 F) outside, and 20 C (68 F) inside. The calculation standard is based on the EN 673 standard. A number of common glazing configurations both with and without Low-e coatings, and with a variety of gas fills were evaluated using both the North American NFRC standard and the European EN 673 standard. All results were calculated using WINDOW 6.3 from LBNL. All IGU's (Insulated Glazing Units) have a standard height of 1 meter.

5

Advanced Systems  

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

Glazing Systems Glazing Systems Using Non-Structural Center Glazing Layers Windows in the United States use aproximately 2 quads a year in heating energy, approximately one third of all building space heating energy used and the largest single end use attributed to windows. Even if all existing windows were replaced with today’s ENERGY STAR low-e products (U values < 0.35 Btu/hr-ft2-F), windows related heating would still be over 1 Quad. Because heating loads are strongly tied to conductive losses, technologies which lead to lower window U-factors are the key to reducing heating energy. A 0.1 Btu/hr-ft2-F window is targeted as a product, which will meet the requirements of zero-energy homes. Dynamic control of solar gains will further reduce heating needs by allowing winter solar heat gains to be effectively utilized while limiting cooling season gains. Significant cooling load savings can also be expected from lower U-factor windows in certain climates and from dynamic windows in all climates.

6

Advancing Energy Systems through Integration  

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

Advancing Energy Systems Advancing Energy Systems through Integration Presented in partnership with the United States Department of Energy November 20, 2012 Webinar Community Renewable Energy Success Stories: District Heating with Renewable Energy Saint Paul's Community Energy System * Underground network of pipes aggregate heating and cooling needs * Aggregated thermal loads allows application of technologies and fuels not feasible for individual buildings * Increases fuel flexibility, rate stability, and reliability Community Scale Heating and Cooling 4 ever-greenenergy.com Ever-Green Energy Integrated Energy System flexible & renewable fuel sources reliable and effective production & storage hot & chilled water loops maximize energy conservation & reliability

7

Advanced Reciprocating Engine Systems  

Broader source: Energy.gov [DOE]

The Advanced Reciprocating Engine Systems (ARES) program is designed to promote separate but parallel engine development between the major stationary, gaseous fueled engine manufacturers in the...

8

The ARIES Advanced And Conservative Tokamak (ACT) Power Plant Study  

SciTech Connect (OSTI)

Tokamak power plants are studied with advanced and conservative design philosophies in order to identify the impacts on the resulting designs and to provide guidance to critical research needs. Incorporating updated physics understanding, and using more sophisticated engineering and physics analysis, the tokamak configurations have developed a more credible basis compared to older studies. The advanced configuration assumes a self-cooled lead lithium (SCLL) blanket concept with SiC composite structural material with 58% thermal conversion efficiency. This plasma has a major radius of 6.25 m, a toroidal field of 6.0 T, a q95 of 4.5, a {beta}N{sup total} of 5.75, H{sub 98} of 1.65, n/nGr of 1.0, and peak divertor heat flux of 13.7 MW/m{sup 2}. The conservative configuration assumes a dual coolant lead lithium (DCLL) blanket concept with ferritic steel structural material and helium coolant, achieving a thermal conversion efficiency of 45%. The plasma major radius is 9.75 m, a toroidal field of 8.75 T, a q95 of 8.0, a {beta}N{sup total} of 2.5, H{sub 98} of 1.25, n/n{sub Gr} of 1.3, and peak divertor heat flux of 10 MW/m{sup 2}. The divertor heat flux treatment with a narrow power scrape-off width has driven the plasmas to larger major radius. Edge and divertor plasma simulations are targeting a basis for high radiated power fraction in the divertor, which is necessary for solutions to keep the peak heat flux in the range of 10-15 MW/m{sup 2}. Combinations of the advanced and conservative approaches show intermediate sizes. A new systems code using a database approach has been used and shows that the operating point is really an operating zone with some range of plasma and engineering parameters and very similar costs of electricity. Papers in this issue provide more detailed discussion of the work summarized here.

Kessel, C. E.; Poli, F. M.; Ghantous, K.; Gorelenkov, N. [Princeton Plasma Physics Lab., Princeton, NJ (United States)] [Princeton Plasma Physics Lab., Princeton, NJ (United States); Tillack, M. S.; Najmabadi, F.; Wang, X. R.; Navaei, D.; Toudeshki, H. H. [Univ. of California, San Diego, CA (United States)] [Univ. of California, San Diego, CA (United States); Koehly, C. [Karlsruhe Inst. of Technology, Karlsruhe (Germany)] [Karlsruhe Inst. of Technology, Karlsruhe (Germany); El-Guebaly, L.; Blanchard, J. P.; Martin, C. J.; Mynsburge, L. [Univ. of Wisconsin, Madison, WI (United States)] [Univ. of Wisconsin, Madison, WI (United States); Humrickhouse, P. [Idaho National Lab., Idaho Falls, ID (United States)] [Idaho National Lab., Idaho Falls, ID (United States); Rensink, M. E.; Rognlien, T. D. [Lawrence Livermore National Lab., Livermore, CA (United States)] [Lawrence Livermore National Lab., Livermore, CA (United States); Yoda, M.; Abdel-Khalik, S. I.; Hageman, M. D.; Mills, B. H.; Radar, J. D.; Sadowski, D. L. [Georgia Inst. of Technology, Atlanta, GA (United States)] [Georgia Inst. of Technology, Atlanta, GA (United States); Snyder, P. B.; St. John, H.; Turnbull, A. D. [General Atomics, La Jolla, CA (United States)] [General Atomics, La Jolla, CA (United States); Waganer, L. M.; Malang, S.; Rowcliffe, A. F.

2014-03-05T23:59:59.000Z

9

Advanced Microturbine Systems  

SciTech Connect (OSTI)

Dept. of Energy (DOE) Cooperative Agreement DE-FC02-00-CH11061 was originally awarded to Honeywell International, Inc. ?? Honeywell Power Systems Inc. (HPSI) division located in Albuquerque, NM in October 2000 to conduct a program titled Advanced Microturbine Systems (AMS). The DOE Advanced Microturbines Systems Program was originally proposed as a five-year program to design and develop a high efficiency, low emissions, durable microturbine system. The period of performance was to be October 2000 through September 2005. Program efforts were underway, when one year into the program Honeywell sold the intellectual property of Honeywell Power Systems Inc. and HPSI ceased business operations. Honeywell made an internal decision to restructure the existing program due to the HPSI shutdown and submitted a formal request to DOE on September 24, 2001 to transfer the Cooperative Agreement to Honeywell Engines, Systems and Services (HES&S) in Phoenix, AZ in order to continue to offer support for DOE's Advanced Microturbine Program. Work continued on the descoped program under Cooperative Agreement No. DE-FC26-00-CH11061 and has been completed.

None

2005-12-31T23:59:59.000Z

10

ADVANCED TURBINE SYSTEMS PROGRAM  

SciTech Connect (OSTI)

Natural gas combustion turbines are rapidly becoming the primary technology of choice for generating electricity. At least half of the new generating capacity added in the US over the next twenty years will be combustion turbine systems. The Department of Energy has cosponsored with Siemens Westinghouse, a program to maintain the technology lead in gas turbine systems. The very ambitious eight year program was designed to demonstrate a highly efficient and commercially acceptable power plant, with the ability to fire a wide range of fuels. The main goal of the Advanced Turbine Systems (ATS) Program was to develop ultra-high efficiency, environmentally superior and cost effective competitive gas turbine systems for base load application in utility, independent power producer and industrial markets. Performance targets were focused on natural gas as a fuel and included: System efficiency that exceeds 60% (lower heating value basis); Less than 10 ppmv NO{sub x} emissions without the use of post combustion controls; Busbar electricity that are less than 10% of state of the art systems; Reliability-Availability-Maintainability (RAM) equivalent to current systems; Water consumption minimized to levels consistent with cost and efficiency goals; and Commercial systems by the year 2000. In a parallel effort, the program was to focus on adapting the ATS engine to coal-derived or biomass fuels. In Phase 1 of the ATS Program, preliminary investigators on different gas turbine cycles demonstrated that net plant LHV based efficiency greater than 60% was achievable. In Phase 2 the more promising cycles were evaluated in greater detail and the closed-loop steam-cooled combined cycle was selected for development because it offered the best solution with least risk for achieving the ATS Program goals for plant efficiency, emissions, cost of electricity and RAM. Phase 2 also involved conceptual ATS engine and plant design and technology developments in aerodynamics, sealing, combustion, cooling, materials, coatings and casting development. The market potential for the ATS gas turbine in the 2000-2014 timeframe was assessed for combined cycle, simple cycle and integrated gasification combined cycle, for three engine sizes. The total ATS market potential was forecasted to exceed 93 GW. Phase 3 and Phase 3 Extension involved further technology development, component testing and W501ATS engine detail design. The technology development efforts consisted of ultra low NO{sub x} combustion, catalytic combustion, sealing, heat transfer, advanced coating systems, advanced alloys, single crystal casting development and determining the effect of steam on turbine alloys. Included in this phase was full-load testing of the W501G engine at the McIntosh No. 5 site in Lakeland, Florida.

Gregory Gaul

2004-04-21T23:59:59.000Z

11

Advanced drilling systems study.  

SciTech Connect (OSTI)

This report documents the results of a study of advanced drilling concepts conducted jointly for the Natural Gas Technology Branch and the Geothermal Division of the U.S. Department of Energy. A number of alternative rock cutting concepts and drilling systems are examined. The systems cover the range from current technology, through ongoing efforts in drilling research, to highly speculative concepts. Cutting mechanisms that induce stress mechanically, hydraulically, and thermally are included. All functions necessary to drill and case a well are considered. Capital and operating costs are estimated and performance requirements, based on comparisons of the costs for alternative systems to conventional drilling technology, are developed. A number of problems common to several alternatives and to current technology are identified and discussed.

Pierce, Kenneth G.; Livesay, Billy Joe; Finger, John Travis (Livesay Consultants, Encintas, CA)

1996-05-01T23:59:59.000Z

12

Advanced Manufacturing Office: Motor Systems  

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

Motor Systems to Motor Systems to someone by E-mail Share Advanced Manufacturing Office: Motor Systems on Facebook Tweet about Advanced Manufacturing Office: Motor Systems on Twitter Bookmark Advanced Manufacturing Office: Motor Systems on Google Bookmark Advanced Manufacturing Office: Motor Systems on Delicious Rank Advanced Manufacturing Office: Motor Systems on Digg Find More places to share Advanced Manufacturing Office: Motor Systems on AddThis.com... Quick Links Energy Resource Center Technical Publications by Energy System Energy-Efficient Technologies Incentives & Resources by Zip Code Better Plants Superior Energy Performance Contacts Motor Systems Photo of Man Checking Motor Performance Motor-driven equipment accounts for 54% of manufacturing electricity use. Dramatic energy and cost savings can be achieved in motor systems by

13

Measuring Advances in HVAC Distribution System Design  

E-Print Network [OSTI]

Advances in HV AC Distribution System Design Ellen FranconiAdvances in HVAC Distribution System Design Ellen Franconisavings result from distribution system design improvements,

Franconi, E.

2011-01-01T23:59:59.000Z

14

Advanced Supply System Validation Workshop  

Broader source: Energy.gov [DOE]

The Bioenergy Technologies Office (BETO) is hosting the Advanced Supply System Validation Workshop on February 3-4, 2015, in Golden, Colorado. The purpose of the workshop is to bring together a...

15

Sandia National Laboratories: Advanced Electric Systems  

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

InfrastructureAdvanced Electric Systems Advanced Electric Systems grid-slide1 grid-slide2 grid-slide3 grid-slide4 Advanced Electric Systems Integrating Renewable Energy into the...

16

Particulate Emissions Control by Advanced Filtration Systems...  

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

Particulate Emissions Control by Advanced Filtration Systems or GDI Engines Particulate Emissions Control by Advanced Filtration Systems or GDI Engines 2013 DOE Hydrogen and Fuel...

17

Advancing Energy Systems through Integration | Department of...  

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

Advancing Energy Systems through Integration Advancing Energy Systems through Integration This presentation was given by Ever-Green Energy's Ken Smith as part of the November 20,...

18

Advanced CSP Systems Analysis  

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

and sensitivity analyses for assessing system performance and economics of a solar thermal power plant * Acquired tools and methods to develop integrated models to...

19

Session: CSP Advanced Systems -- Advanced Overview (Presentation)  

SciTech Connect (OSTI)

The project description is: (1) it supports crosscutting activities, e.g. advanced optical materials, that aren't tied to a single CSP technology and (2) it supports the 'incubation' of new concepts in preliminary stages of investigation.

Mehos, M.

2008-04-01T23:59:59.000Z

20

Power Systems Advanced Research  

SciTech Connect (OSTI)

In the 17 quarters of the project, we have accomplished the following milestones - first, construction of the three multiwavelength laser scattering machines for different light scattering study purposes; second, build up of simulation software package for simulation of field and laboratory particulates matters data; third, carried out field online test on exhaust from combustion engines with our laser scatter system. This report gives a summary of the results and achievements during the project's 16 quarters period. During the 16 quarters of this project, we constructed three multiwavelength scattering instruments for PM2.5 particulates. We build up a simulation software package that could automate the simulation of light scattering for different combinations of particulate matters. At the field test site with our partner, Alturdyne, Inc., we collected light scattering data for a small gas turbine engine. We also included the experimental data feedback function to the simulation software to match simulation with real field data. The PM scattering instruments developed in this project involve the development of some core hardware technologies, including fast gated CCD system, accurately triggered Passively Q-Switched diode pumped lasers, and multiwavelength beam combination system. To calibrate the scattering results for liquid samples, we also developed the calibration system which includes liquid PM generator and size sorting instrument, i.e. MOUDI. In this report, we give the concise summary report on each of these subsystems development results.

California Institute of Technology

2007-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Systems Architecture Advances & Challenges  

E-Print Network [OSTI]

/ implementation) Economy (e.g., optimizing the frequent case, end-to-end principle) ... 3 #12;© 2011, S of concerns (e.g., separation between policy / mechanisms, interface / implementation) Economy (e;© 2011, S. Krakowiak Systems Architecture The two faces of virtualization ! Descending (refinement

Pous, Damien

22

Industrial Advanced Turbine Systems Program overview  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE), in partnership with industry, has set new performance standards for industrial gas turbines through the creation of the Industrial Advanced Turbine System Program. Their leadership will lead to the development of an optimized, energy efficient, and environmentally friendly gas turbine power systems in this size class (3-to-20 MW). The DOE has already created a positive effect by encouraging gas turbine system manufacturers to reassess their product and technology plans using the new higher standards as the benchmark. Solar Turbines has been a leader in the industrial gas turbine business, and is delighted to have joined with the DOE in developing the goals and vision for this program. We welcome the opportunity to help the national goals of energy conservation and environmental enhancement. The results of this program should lead to the U.S. based gas turbine industry maintaining its international leadership and the creation of highly paid domestic jobs.

Esbeck, D.W. [Solar Turbines Inc., San Diego, CA (United States)

1995-10-01T23:59:59.000Z

23

Energy Programs | Advanced Storage Systems  

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

Advanced Storage Systems Advanced Storage Systems Tapping Into Fuel Cells and Batteries Page 1 of 2 Imagine being able to drive a forty-mile round-trip commute every day without ever going near a gas pump. As the United States moves towards an energy economy with reduced dependence on foreign oil and fewer carbon emissions, development of alternative fuel sources and transmission of the energy they provide is only part of the equation. An increase in energy generated from intermittent renewable sources and the growing need for mobile energy will require new, efficient means of storing it, and technological advancements will be necessary to support the nation's future energy storage needs. A change toward alternative transportation - hydrogen fuel-cell vehicles, hybrid electric vehicles, plug-in hybrid-electric vehicles and electric

24

Advanced Dewatering Systems Development  

SciTech Connect (OSTI)

A new fine coal dewatering technology has been developed and tested in the present work. The work was funded by the Solid Fuels and Feedstocks Grand Challenge PRDA. The objective of this program was to 'develop innovative technical approaches to ensure a continued supply of environmentally sound solid fuels for existing and future combustion systems with minimal incremental fuel cost.' Specifically, this solicitation is aimed at developing technologies that can (i) improve the efficiency or economics of the recovery of carbon when beneficiating fine coal from both current production and existing coal slurry impoundments and (ii) assist in the greater utilization of coal fines by improving the handling characteristics of fine coal via dewatering and/or reconstitution. The results of the test work conducted during Phase I of the current project demonstrated that the new dewatering technologies can substantially reduce the moisture from fine coal, while the test work conducted during Phase II successfully demonstrated the commercial viability of this technology. It is believed that availability of such efficient and affordable dewatering technology is essential to meeting the DOE's objectives.

R.H. Yoon; G.H. Luttrell

2008-07-31T23:59:59.000Z

25

Gas fired Advanced Turbine System  

SciTech Connect (OSTI)

The primary objective of the first phase of the Advanced Gas Turbine System (ATS) program was the concept definition of an advanced engine system that meets efficiency and emission goals far exceeding those that can be provided with today`s equipment. The thermal efficiency goal for such an advanced industrial engine was set at 50% some 15 percentage points higher than current equipment levels. Exhaust emissions goals for oxides of nitrogen (NO{sub x}), carbon monoxide (CO), and unburned hydrocarbons (UH) were fixed at 8 parts per million by volume (ppmv), 20 ppmv, and 20 ppmv respectively, corrected to 15% oxygen (O{sub 2}) levels. Other goals had to be addressed; these involved reducing the cost of power produced by 10 percent and improving or maintaining the reliability, availability, and maintainability (RAM) at current levels. This advanced gas turbine was to be fueled with natural gas, and it had to embody features that would allow it bum coal or coal derived fuels.

LeCren, R.T.; White, D.J.

1993-01-01T23:59:59.000Z

26

Advanced Supply System Validation Workshop  

Broader source: Energy.gov [DOE]

The Bioenergy Technologies Office (BETO) is hosting the Advanced Supply System Validation Workshop on February 3-4, 2015, in Golden, Colorado. The purpose of the workshop is to bring together a diverse group of stakeholders to examine, discuss, and validate analysis assumptions used to move beyond current feedstock supply systems designed to support the agriculture and forestry industries. Participants will discuss assumptions relating to volume and transportation logistics, biomass quality, and operational risks. The outcome of the workshop will include a report summarizing the expert opinions shared during the workshop.

27

VISCOSITY AND RELAXATION APPROXIMATIONS FOR HYPERBOLIC SYSTEMS OF CONSERVATION LAWS  

E-Print Network [OSTI]

VISCOSITY AND RELAXATION APPROXIMATIONS FOR HYPERBOLIC SYSTEMS OF CONSERVATION LAWS Athanasios E. Tzavaras Abstract. These lecture notes deal with the approximation of conservation laws via viscosity or relaxation. The following topics are covered: The general structure of viscosity and relaxation

Tzavaras, Athanasios E.

28

Conserve Energy by Optimizing Air Compressor System  

E-Print Network [OSTI]

, the plant would have to substantially increase the product shipments. This is not always possible; however, conserving energy is nearly always possible. How should one begin an energy conservation program within a major Industrial Plant? The same as any...

Williams, V. A.

29

Advanced HVAC Systems | Department of Energy  

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

HVAC Systems Advanced HVAC Systems Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN Partners: -- Indian Institute of Technology Bombay - Maharashtra, India -- Malviya...

30

Advanced Lighting Systems | Open Energy Information  

Open Energy Info (EERE)

Minnesota Zip: 56378 Product: Advanced Lighting Systems (ALS) provides a number of LED and fiber optic lighting solutions. It was acquired by Nexxus Lighting in September...

31

Particulate Emissions Control by Advanced Filtration Systems...  

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

Advanced Filtration Systems for GDI Engines (ANLCorningHyundai CRADA) June 19, 2014 DOE Annual Merit Review & Peer Evaluation Meeting PI: Kyeong Lee Co-investigators: Seung Choi,...

32

Advanced Combustion Concepts - Enabling Systems and Solutions...  

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

Fuel efficiency as key market driver Stringent emission requirements System cost of advanced combustion Targets 30% fuel efficiency improvement SULEV emissions...

33

Advanced Integrated Electric Traction System | Department of...  

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

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ape09smith.pdf More Documents & Publications Advanced Integrated Electric Traction System...

34

Advanced Integrated Electric Traction System | Department of...  

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

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ape014smith2011o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

35

Advanced Integrated Systems Technology Development  

E-Print Network [OSTI]

conditioning in buildings featuring integrated design withconditioning in buildings featuring integrated design withof a building with advanced integrated design involving one

2013-01-01T23:59:59.000Z

36

Energy Conservation in the Bell System  

E-Print Network [OSTI]

, and correlating factors, and to provide rapid determination of energy performance. Immediate steps, primarily in building and motor vehicle operations, resulted in approximately 10% energy conservation in 1974 compared with 1973. These, plus intermediate range...

Del Grande, M. R.

1979-01-01T23:59:59.000Z

37

Viscosity and Relaxation Approximation for Hyperbolic Systems of Conservation Laws  

E-Print Network [OSTI]

Viscosity and Relaxation Approximation for Hyperbolic Systems of Conservation Laws Athanasios E with the approximation of conservation laws via viscosity or relaxation. The following topics are covered: The general structure of viscosity and relaxation approximations is discussed, as suggested by the second law

Tzavaras, Athanasios E.

38

Advanced Vehicles Group: Center for Transportation Technologies and Systems  

SciTech Connect (OSTI)

Describes R&D in advanced vehicle systems and components (e.g., batteries) by NREL's Advanced Vehicles Group.

Not Available

2008-08-01T23:59:59.000Z

39

Conservation laws for a system of particles, strings, and membranes  

Science Journals Connector (OSTI)

The conservation laws associated with Poincar invariance for a system of particles, a system of strings, and a system of membranes as well as for a mixed system of particles, strings, and membranes are studied for the gauge-invariant theory of direct interactions between such systems.

Patricio S. Letelier

1978-07-15T23:59:59.000Z

40

Solar Energy Grid Integration Systems-Advanced Concepts | Department...  

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

Systems Integration Solar Energy Grid Integration Systems-Advanced Concepts Solar Energy Grid Integration Systems-Advanced Concepts On September 1, 2011, DOE announced 25.9...

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

VISCOSITY AND RELAXATION APPROXIMATIONS FOR HYPERBOLIC SYSTEMS OF CONSERVATION LAWS  

E-Print Network [OSTI]

VISCOSITY AND RELAXATION APPROXIMATIONS FOR HYPERBOLIC SYSTEMS deal with the approximation of conservation * *laws via viscosity or relaxation. The following topics are covered: The general structure of viscosity and relaxation approximations is discu

Tzavaras, Athanasios E.

42

Advanced Integrated Electric Traction System | Department of...  

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

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ape014smith2010o.pdf More Documents & Publications Advanced Integrated Electric Traction System...

43

Advanced Reciprocating Engine System (ARES)  

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

natural gas power generation systems will offer a comparative advantage in dispersed power generation, combined heat and power applications, and total energy systems to...

44

NREL: Learning - Advanced Vehicle Systems and Components  

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

Advanced Vehicle Systems and Components Advanced Vehicle Systems and Components Photo of a man checking out an advanced battery using testing equipment that includes a long metal tube on a table top. NREL's researchers test new batteries developed for hybrid electric vehicles. Credit: Warren Gretz Researchers and engineers at the NREL work closely with those in the automotive industry to develop new technologies, such as advanced batteries, for storing energy in cars, trucks, and buses. They also help to develop and test new technologies for using that energy more efficiently. And they work on finding new, energy-efficient ways to reduce the amount of fuel needed to heat and cool the interiors, or cabins, of vehicles. To help develop these new technologies, NREL's researchers are improving the efficiency of vehicle systems and components like these:

45

Advances in Energy Systems Engineering  

Science Journals Connector (OSTI)

Controlled nuclear fusion, cellulosic biofuels, and natural gas hydrate belong to this category. ... Polygeneration energy systems are multi-input and multioutput energy systems that coproduce electricity and synthetic liquid fuels. ...

Pei Liu; Michael C. Georgiadis; Efstratios N. Pistikopoulos

2010-09-17T23:59:59.000Z

46

Advanced, Energy-Efficient Hybrid Membrane System for Industrial...  

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

Advanced, Energy-Efficient Hybrid Membrane System for Industrial Water Reuse Advanced, Energy-Efficient Hybrid Membrane System for Industrial Water Reuse hybridmembranesystemsfa...

47

Injection System and Engine Strategies for Advanced Emission...  

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

Injection System and Engine Strategies for Advanced Emission Standards Injection System and Engine Strategies for Advanced Emission Standards Presentation given at DEER 2006,...

48

Development of an Advanced Combined Heat and Power (CHP) System...  

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

an Advanced Combined Heat and Power (CHP) System Utilizing Off-Gas from Coke Calcination - Fact Sheet, 2011 Development of an Advanced Combined Heat and Power (CHP) System...

49

Advances in cryptographic voting systems  

E-Print Network [OSTI]

Democracy depends on the proper administration of popular elections. Voters should receive assurance that their intent was correctly captured and that all eligible votes were correctly tallied. The election system as a ...

Adida, Benjamin (Benjamin Michael), 1977-

2006-01-01T23:59:59.000Z

50

Energy Conservation in Process Chilled Water Systems  

E-Print Network [OSTI]

The energy consumption of the chiller and cooling tower in a process cooling application was analyzed using the TRNSYS computer code. The basic system included a constant speed centrifugal chiller and an induced-draft, counterflow cooling tower...

Ambs, L. L.; DiBella, R. A.

51

Advanced Turbine Systems Program. Topical report  

SciTech Connect (OSTI)

The Allison Gas Turbine Division (Allison) of General Motors Corporation conducted the Advanced Turbine Systems (ATS) program feasibility study (Phase I) in accordance with the Morgantown Energy Technology Center`s (METC`s) contract DE-AC21-86MC23165 A028. This feasibility study was to define and describe a natural gas-fired reference system which would meet the objective of {ge}60% overall efficiency, produce nitrogen oxides (NO{sub x}) emissions 10% less than the state-of-the-art without post combustion controls, and cost of electricity of the N{sup th} system to be approximately 10% below that of the current systems. In addition, the selected natural gas-fired reference system was expected to be adaptable to coal. The Allison proposed reference system feasibility study incorporated Allison`s long-term experience from advanced aerospace and military technology programs. This experience base is pertinent and crucial to the success of the ATS program. The existing aeroderivative technology base includes high temperature hot section design capability, single crystal technology, advanced cooling techniques, high temperature ceramics, ultrahigh turbomachinery components design, advanced cycles, and sophisticated computer codes.

NONE

1993-03-01T23:59:59.000Z

52

Advanced Energy Efficient Roof System  

SciTech Connect (OSTI)

Energy consumption in buildings represents 40 percent of primary U.S. energy consumption, split almost equally between residential (22%) and commercial (18%) buildings.1 Space heating (31%) and cooling (12%) account for approximately 9 quadrillion Btu. Improvements in the building envelope can have a significant impact on reducing energy consumption. Thermal losses (or gains) from the roof make up 14 percent of the building component energy load. Infiltration through the building envelope, including the roof, accounts for an additional 28 percent of the heating loads and 16 percent of the cooling loads. These figures provide a strong incentive to develop and implement more energy efficient roof systems. The roof is perhaps the most challenging component of the building envelope to change for many reasons. The engineered roof truss, which has been around since 1956, is relatively low cost and is the industry standard. The roof has multiple functions. A typical wood frame home lasts a long time. Building codes vary across the country. Customer and trade acceptance of new building products and materials may impede market penetration. The energy savings of a new roof system must be balanced with other requirements such as first and life-cycle costs, durability, appearance, and ease of construction. Conventional residential roof construction utilizes closely spaced roof trusses supporting a layer of sheathing and roofing materials. Gypsum board is typically attached to the lower chord of the trusses forming the finished ceiling for the occupied space. Often in warmer climates, the HVAC system and ducts are placed in the unconditioned and otherwise unusable attic. High temperature differentials and leaky ducts result in thermal losses. Penetrations through the ceilings are notoriously difficult to seal and lead to moisture and air infiltration. These issues all contribute to greater energy use and have led builders to consider construction of a conditioned attic. The options considered to date are not ideal. One approach is to insulate between the trusses at the roof plane. The construction process is time consuming and costs more than conventional attic construction. Moreover, the problems of air infiltration and thermal bridges across the insulation remain. Another approach is to use structurally insulated panels (SIPs), but conventional SIPs are unlikely to be the ultimate solution because an additional underlying support structure is required except for short spans. In addition, wood spline and metal locking joints can result in thermal bridges and gaps in the foam. This study undertook a more innovative approach to roof construction. The goal was to design and evaluate a modular energy efficient panelized roof system with the following attributes: (1) a conditioned and clear attic space for HVAC equipment and additional finished area in the attic; (2) manufactured panels that provide structure, insulation, and accommodate a variety of roofing materials; (3) panels that require support only at the ends; (4) optimal energy performance by minimizing thermal bridging and air infiltration; (5) minimal risk of moisture problems; (6) minimum 50-year life; (7) applicable to a range of house styles, climates and conditions; (8) easy erection in the field; (9) the option to incorporate factory-installed solar systems into the panel; and (10) lowest possible cost. A nationwide market study shows there is a defined market opportunity for such a panelized roof system with production and semi-custom builders in the United States. Senior personnel at top builders expressed interest in the performance attributes and indicate long-term opportunity exists if the system can deliver a clear value proposition. Specifically, builders are interested in (1) reducing construction cycle time (cost) and (2) offering increased energy efficiency to the homebuyer. Additional living space under the roof panels is another low-cost asset identified as part of the study. The market potential is enhanced through construction activity levels in target marke

Jane Davidson

2008-09-30T23:59:59.000Z

53

Energy Conservation Studies of Existing HVAC Systems  

E-Print Network [OSTI]

start and stop of air handling unit~ consists of controlling uni t operation based on the time of day and day of the week. This can be accomplished by time clock control at the air ' handler or central control from an automatic I system. This scheme... start and stop of air handling unit~ consists of controlling uni t operation based on the time of day and day of the week. This can be accomplished by time clock control at the air ' handler or central control from an automatic I system. This scheme...

Patterson, C. L.; Phelan, T. R.

54

Industrial Conservation Technology Energy Savings Monitoring System  

E-Print Network [OSTI]

steps using t~o i i ! The pape!r concludes with a summary of the system benefits to government and industry. BACKGROUND AND PURPOSE OF THE IMPACT SCOREBOARD SYSTEM FIGURE 1 During the past four years, Argonne National TECHNOLOGY PROCESS FLOW...* *Regions where teetu,ology i.pact is significant Reference 1 The most recent work was sponsored by Argonne National Laboratory and the Department of Energy under contract ANL 39-109-38-5079. I I I I , I I I I I I 819 ESL-IE-80...

Crowell, J. J.; Phipps, H. R., Jr.

1980-01-01T23:59:59.000Z

55

Energy Conservation in the Bell System  

E-Print Network [OSTI]

and handles in excess of 850 million calls a day. In providing telecommunications services, the System employs more than one million people, utilizes 32,000 buildings, and operates more than 190,000 motor vehicles (the world's largest owned and operated...

Draper, W. C.

1983-01-01T23:59:59.000Z

56

Energy Conservation in the Bell System  

E-Print Network [OSTI]

and handles in excess of 815 million calls a day. In providing telecommunications services, the System employs more than one million people, utilizes almost 30,000 buildings, and operates more than 195,000 motor vehicles (the world's largest owned and operated...

Williamson, J. W.

1982-01-01T23:59:59.000Z

57

New Advanced System Utilizes Industrial Waste Heat to Power Water...  

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

Water Reuse ADVANCED MANUFACTURING OFFICE New Advanced System Utilizes Industrial Waste Heat to Power Water Purification Introduction As population growth and associated factors...

58

Experience with the Development of Advanced Materials for Geothermal Systems  

SciTech Connect (OSTI)

This chapter contains the following sections: Introduction, Advanced Cements, Materials Research and Development in Enhanced Geothermal Systems (EGS), Advanced Coatings, and Conclusions.

Sugama, T.; Butcher, T.; Ecker, L.

2011-01-01T23:59:59.000Z

59

Merchant vessel advanced power systems. Final report  

SciTech Connect (OSTI)

This study identifies and evaluates potential highly advanced propulsion power plants which may have marine applications beyond the year 2000. Various promising current technologies were screened and an evaluation of each plant concept and its suitability for use as a merchant ship propulsion system is contained in this report.

Baham, G.J.; Swensson, G.

1982-01-01T23:59:59.000Z

60

Modeling Energy Conservation in a Completely Integrable Boussinesq system  

E-Print Network [OSTI]

Modeling Energy Conservation in a Completely Integrable Boussinesq system Alfatih Ali and Henrik Kalisch Department of Mathematics, University of Bergen Postbox 7800, 5020 Bergen, Norway March 23, 2013 Abstract This work presents a derivation of the energy density and energy flux of surface waves modeled

Kalisch, Henrik

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Advanced Seismic While Drilling System  

SciTech Connect (OSTI)

A breakthrough has been discovered for controlling seismic sources to generate selectable low frequencies. Conventional seismic sources, including sparkers, rotary mechanical, hydraulic, air guns, and explosives, by their very nature produce high-frequencies. This is counter to the need for long signal transmission through rock. The patent pending SeismicPULSER{trademark} methodology has been developed for controlling otherwise high-frequency seismic sources to generate selectable low-frequency peak spectra applicable to many seismic applications. Specifically, we have demonstrated the application of a low-frequency sparker source which can be incorporated into a drill bit for Drill Bit Seismic While Drilling (SWD). To create the methodology of a controllable low-frequency sparker seismic source, it was necessary to learn how to maximize sparker efficiencies to couple to, and transmit through, rock with the study of sparker designs and mechanisms for (a) coupling the sparker-generated gas bubble expansion and contraction to the rock, (b) the effects of fluid properties and dynamics, (c) linear and non-linear acoustics, and (d) imparted force directionality. After extensive seismic modeling, the design of high-efficiency sparkers, laboratory high frequency sparker testing, and field tests were performed at the University of Texas Devine seismic test site. The conclusion of the field test was that extremely high power levels would be required to have the range required for deep, 15,000+ ft, high-temperature, high-pressure (HTHP) wells. Thereafter, more modeling and laboratory testing led to the discovery of a method to control a sparker that could generate low frequencies required for deep wells. The low frequency sparker was successfully tested at the Department of Energy Rocky Mountain Oilfield Test Center (DOE RMOTC) field test site in Casper, Wyoming. An 8-in diameter by 26-ft long SeismicPULSER{trademark} drill string tool was designed and manufactured by TII. An APS Turbine Alternator powered the SeismicPULSER{trademark} to produce two Hz frequency peak signals repeated every 20 seconds. Since the ION Geophysical, Inc. (ION) seismic survey surface recording system was designed to detect a minimum downhole signal of three Hz, successful performance was confirmed with a 5.3 Hz recording with the pumps running. The two Hz signal generated by the sparker was modulated with the 3.3 Hz signal produced by the mud pumps to create an intense 5.3 Hz peak frequency signal. The low frequency sparker source is ultimately capable of generating selectable peak frequencies of 1 to 40 Hz with high-frequency spectra content to 10 kHz. The lower frequencies and, perhaps, low-frequency sweeps, are needed to achieve sufficient range and resolution for realtime imaging in deep (15,000 ft+), high-temperature (150 C) wells for (a) geosteering, (b) accurate seismic hole depth, (c) accurate pore pressure determinations ahead of the bit, (d) near wellbore diagnostics with a downhole receiver and wired drill pipe, and (e) reservoir model verification. Furthermore, the pressure of the sparker bubble will disintegrate rock resulting in an increased overall rates of penetration. Other applications for the SeismicPULSER{trademark} technology are to deploy a low-frequency source for greater range on a wireline for Reverse Vertical Seismic Profiling (RVSP) and Cross-Well Tomography. Commercialization of the technology is being undertaken by first contacting stakeholders to define the value proposition for rig site services utilizing SeismicPULSER{trademark} technologies. Stakeholders include national oil companies, independent oil companies, independents, service companies, and commercial investors. Service companies will introduce a new Drill Bit SWD service for deep HTHP wells. Collaboration will be encouraged between stakeholders in the form of joint industry projects to develop prototype tools and initial field trials. No barriers have been identified for developing, utilizing, and exploiting the low-frequency SeismicPULSER{trademark} source in a

Robert Radtke; John Fontenot; David Glowka; Robert Stokes; Jeffery Sutherland; Ron Evans; Jim Musser

2008-06-30T23:59:59.000Z

62

Advanced Materials for Ultra Supercritical Boiler Systems  

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

Road Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4721 robert.romanosky@netl.doe.gov Patricia a. Rawls Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-5882 patricia.rawls@netl.doe.gov Robert M. Purgert Prime Contractor and Administrator Energy Industries of Ohio 6100 Oak Tree Boulevard, Suite 200 Independence, OH 44131-6914 216-643-2952 purgert@msn.com AdvAnced MAteriAls for UltrA sUpercriticAl Boiler systeMs Description A consortium led by the U.S. Department of Energy (DOE) Office of Fossil Energy (FE) has conducted the first phase of a multiyear program to develop materials technology for use in advanced ultra supercritical (USC) coal-fired power plants. The advanced materials developed in this project are essential for construction of

63

E-Print Network 3.0 - advanced turbine systems Sample Search...  

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

systems Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced turbine systems...

64

E-Print Network 3.0 - advanced turbine system Sample Search Results  

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

system Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced turbine system...

65

E-Print Network 3.0 - advanced power system Sample Search Results  

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

system Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced power system...

66

Modal testing of advanced wind turbine systems  

SciTech Connect (OSTI)

The US Department of Energy (DOE), in conjunction with the US wind industry, is supporting the development of technology for advanced, higher efficiency wind energy conversion systems. Under the Advanced Wind Turbine (AAWT) Program, the DOE, through the National Renewable Energy Laboratory (NREL), will assist US industry in incorporating advanced wind turbine technology into utility-grade wind turbines. As part of the AWT Program, NREL is conducting a range of activities aimed at assisting the wind industry with system design analysis and testing. One major activity is NREL`s Full System Model Testing (FSMT) task. In 1993 and 1994, NREL`s FSMT team conducted model surveys on several wind turbine systems developed by industry, including Atlantic Orient Corporation`s AOC 15/50, R. Lynette and Associates` AWT-26 P1, and Carter Wind Turbines Incorporated`s CWT-300. This paper describes how these model surveys were carried out and how industry and NREL wind researchers used the experimental results to validate their analytical models.

Osgood, R.M. [National Renewable Energy Laboratory, Golden, CO (United States). National Wind Technology Center

1995-09-01T23:59:59.000Z

67

CS 550: Advanced Operating Systems This course covers general issues of design and implementation of advanced modern operating systems.  

E-Print Network [OSTI]

CS 550: Advanced Operating Systems Objectives This course covers general issues of design and implementation of advanced modern operating systems. The focus is on issues that are critical to the applications Operating Systems - CS Dept, Illinois ... 1 of 1 #12;

Heller, Barbara

68

ADVANCED GAS TURBINE SYSTEMS RESEARCH PROGRAM  

SciTech Connect (OSTI)

The quarterly activities of the Advanced Gas Turbine Systems Research (AGTSR) program are described in this quarterly report. As this program administers research, we have included all program activity herein within the past quarter as dated. More specific research progress reports are provided weekly at the request of the AGTSR COR and are being sent to NETL As for the administration of this program, items worthy of note are presented in extended bullet format following the appropriate heading.

Lawrence P. Golan

2002-07-01T23:59:59.000Z

69

Advanced thermionic reactor systems design code  

SciTech Connect (OSTI)

An overall systems design code is under development to model an advanced in-core thermionic nuclear reactor system for space applications at power levels of 10 to 50 kWe. The design code is written in an object-oriented programming environment that allows the use of a series of design modules, each of which is responsible for the determination of specific system parameters. The code modules include a neutronics and core criticality module, a core thermal hydraulics module, a thermionic fuel element performance module, a radiation shielding module, a module for waste heat transfer and rejection, and modules for power conditioning and control. The neutronics and core criticality module determines critical core size, core lifetime, and shutdown margins using the criticality calculation capability of the Monte Carlo Neutron and Photon Transport Code System (MCNP). The remaining modules utilize results of the MCNP analysis along with FORTRAN programming to predict the overall system performance.

Lewis, B.R.; Pawlowski, R.A.; Greek, K.J.; Klein, A.C. (Department of Nuclear Engineering, Radiation Center, C116, Oregon State University, Corvallis, Oregon 97331-5902 (US))

1991-01-01T23:59:59.000Z

70

Advanced Nuclear Reactor Systems An Indian Perspective  

Science Journals Connector (OSTI)

The Indian nuclear power programme envisages use of closed nuclear fuel cycle and thorium utilisation as its mainstay for its sustainable growth. The current levels of deployment of nuclear energy in India need to be multiplied nearly hundred fold to reach levels of electricity generation that would facilitate the country to achieve energy independence as well as a developed status. The Indian thorium based nuclear energy systems are being developed to achieve sustainability in respect of fuel resource along with enhanced safety and reduced waste generation. Advanced Heavy Water Reactor and its variants have been designed to meet these objectives. The Indian High Temperature Reactor programme also envisages use of thorium-based fuel with advanced levels of passive safety features.

Ratan Kumar Sinha

2011-01-01T23:59:59.000Z

71

Hyperbolic Conservation Laws and Hydrodynamic Limit for Particle Systems  

E-Print Network [OSTI]

We study the following class of scalar hyperbolic conservation laws with discontinuous fluxes: \\partial_t\\rho+\\partial_xF(x,\\rho)=0. The main feature of such a conservation law is the discontinuity of the flux function in the space variable x. Kruzkov's approach for the L1-contraction does not apply since it requires the Lipschitz continuity of the flux function; and entropy solutions even for the Riemann problem are not unique under the classical entropy conditions. On the other hand, it is known that, in statistical mechanics, some microscopic interacting particle systems with discontinuous speed parameter lambda(x), in the hydrodynamic limit, formally lead to scalar hyperbolic conservation laws with discontinuous fluxes of the form: \\partial_t\\rho+\\partial_x(\\lambda(x)h(\\rho))=0. The natural question arises which entropy solutions the hydrodynamic limit selects, thereby leading to a suitable, physical relevant notion of entropy solutions of this class of conservation laws. This paper is a first step and provides an answer to this question for a family of discontinuous flux functions. In particular, we identify the entropy condition for our PDE and proceed to show the well-posedness by combining our existence result with a uniqueness result of Audusse-Perthame (2005) for the family of flux functions; we establish a compactness framework for the hydrodynamic limit of large particle systems and the convergence of other approximate solutions to our PDE, which is based on the notion and reduction of measure-valued entropy solutions; and we finally establish the hydrodynamic limit for a ZRP with discontinuous speed-parameter governed by an entropy solution to our PDE.

Gui-Qiang Chen; Nadine Even; Christian Klingenberg

2007-10-01T23:59:59.000Z

72

Advanced Combustion Concepts - Enabling Systems and Solutions...  

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

engine installed and vehicle available for application, emission and fuel economy optimization with advanced combustion modes. 4 Advanced combustion control strategy, capable of...

73

Advanced Reciprocating Engine Systems (ARES) R&D - Presentation...  

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

Reciprocating Engine Systems (ARES) R&D - Presentation by Argonne National Laboratory, June 2011 Advanced Reciprocating Engine Systems (ARES) R&D - Presentation by Argonne National...

74

Advanced, Energy-Efficient Hybrid Membrane System for Industrial...  

Energy Savers [EERE]

MANUFACTURING OFFICE Advanced, Energy- Efficient Hybrid Membrane System for Industrial Water Reuse New Hybrid Membrane System Utilizes Industrial Waste Heat to Power Water...

75

Advanced PHEV Engine Systems and Emissions Control Modeling and...  

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

PHEV Engine Systems and Emissions Control Modeling and Analysis Advanced PHEV Engine Systems and Emissions Control Modeling and Analysis 2011 DOE Hydrogen and Fuel Cells Program,...

76

Advanced communication system in substation for integrated protection  

Science Journals Connector (OSTI)

This paper proposes an advanced substation integrated protection communication system based on the ... . The integrated protection communication system within a substation comprises a number of major components s...

Jinghan He ???; Yingli Ren ???; Zhiqian Bo ???

2008-04-01T23:59:59.000Z

77

Advanced Methods Approach to Hybrid Powertrain Systems Optimization...  

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

Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus...

78

Advanced Electric Traction System Technology Development  

SciTech Connect (OSTI)

As a subcontractor to General Motors (GM), Ames Laboratory provided the technical expertise and supplied experimental materials needed to assess the technology of high energy bonded permanent magnets that are injection or compression molded for use in the Advanced Electric Traction System motor. This support was a sustained (Phase 1: 6/07 to 3/08) engineering effort that builds on the research achievements of the primary FreedomCAR project at Ames Laboratory on development of high temperature magnet alloy particulate in both flake and spherical powder forms. Ames Lab also provide guidance and direction in selection of magnet materials and supported the fabrication of experimental magnet materials for development of injection molding and magnetization processes by Arnold Magnetics, another project partner. The work with Arnold Magnetics involved a close collaboration on particulate material design and processing to achieve enhanced particulate properties and magnetic performance in the resulting bonded magnets. The overall project direction was provided by GM Program Management and two design reviews were held at GM-ATC in Torrance, CA. Ames Lab utilized current expertise in magnet powder alloy design and processing, along with on-going research advances being achieved under the existing FreedomCAR Program project to help guide and direct work during Phase 1 for the Advanced Electric Traction System Technology Development Program. The technical tasks included review of previous GM and Arnold Magnets work and identification of improvements to the benchmark magnet material, Magnequench MQP-14-12. Other benchmark characteristics of the desired magnet material include 64% volumetric loading with PPS polymer and a recommended maximum use temperature of 200C. A collaborative relationship was maintained with Arnold Magnets on the specification and processing of the bonded magnet material required by GM-ATC.

Anderson, Iver

2011-01-14T23:59:59.000Z

79

Advanced coal-fueled gas turbine systems  

SciTech Connect (OSTI)

Several technology advances since the early coal-fueled turbine programs that address technical issues of coal as a turbine fuel have been developed in the early 1980s: Coal-water suspensions as fuel form, improved methods for removing ash and contaminants from coal, staged combustion for reducing NO{sub x} emissions from fuel-bound nitrogen, and greater understanding of deposition/erosion/corrosion and their control. Several Advanced Coal-Fueled Gas Turbine Systems programs were awarded to gas turbine manufacturers for for components development and proof of concept tests; one of these was Allison. Tests were conducted in a subscale coal combustion facility and a full-scale facility operating a coal combustor sized to the Allison Model 501-K industrial turbine. A rich-quench-lean (RQL), low nitrogen oxide combustor design incorporating hot gas cleanup was developed for coal fuels; this should also be applicable to biomass, etc. The combustor tests showed NO{sub x} and CO emissions {le} levels for turbines operating with natural gas. Water washing of vanes from the turbine removed the deposits. Systems and economic evaluations identified two possible applications for RQL turbines: Cogeneration plants based on Allison 501-K turbine (output 3.7 MW(e), 23,000 lbs/hr steam) and combined cycle power plants based on 50 MW or larger gas turbines. Coal-fueled cogeneration plant configurations were defined and evaluated for site specific factors. A coal-fueled turbine combined cycle plant design was identified which is simple, compact, and results in lower capital cost, with comparable efficiency and low emissions relative to other coal technologies (gasification, advanced PFBC).

Wenglarz, R.A.

1994-08-01T23:59:59.000Z

80

conservation laws  

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

Conservation Laws Conservation Laws Conservation Laws - Data Analysis Using Graphs - Histograms - Units or Vectors in Particle Physics In all of physics there are only six conservation laws. Each describes a quantity that is conserved, that is, the total amount is the same before and after something occurs. These laws have the restriction that the system is closed, that is, the system is not affected by anything outside it. Conservation of charge Conservation of momentum Conservation of mass/energy Conservation of angular momentum Conservation of baryons Conservation of leptons Let's review the conservation laws that you know from classical physics. Then, we will describe two particle physics conservation laws. Conservation of Charge This is used all the time in chemistry. The total charge in the system is

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Alternative Fuel and Alternative Fuel and Advanced Vehicle System Manufacturing Incentive to someone by E-mail Share Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Facebook Tweet about Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Twitter Bookmark Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Google Bookmark Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Delicious Rank Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Digg Find More places to share Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on AddThis.com...

82

Distributed Sensor Coordination for Advanced Energy Systems  

SciTech Connect (OSTI)

The ability to collect key system level information is critical to the safe, efficient and reli- able operation of advanced energy systems. With recent advances in sensor development, it is now possible to push some level of decision making directly to computationally sophisticated sensors, rather than wait for data to arrive to a massive centralized location before a decision is made. This type of approach relies on networked sensors (called agents from here on) to actively collect and process data, and provide key control deci- sions to significantly improve both the quality/relevance of the collected data and the as- sociating decision making. The technological bottlenecks for such sensor networks stem from a lack of mathematics and algorithms to manage the systems, rather than difficulties associated with building and deploying them. Indeed, traditional sensor coordination strategies do not provide adequate solutions for this problem. Passive data collection methods (e.g., large sensor webs) can scale to large systems, but are generally not suited to highly dynamic environments, such as ad- vanced energy systems, where crucial decisions may need to be reached quickly and lo- cally. Approaches based on local decisions on the other hand cannot guarantee that each agent performing its task (maximize an agent objective) will lead to good network wide solution (maximize a network objective) without invoking cumbersome coordination rou- tines. There is currently a lack of algorithms that will enable self-organization and blend the efficiency of local decision making with the system level guarantees of global decision making, particularly when the systems operate in dynamic and stochastic environments. In this work we addressed this critical gap and provided a comprehensive solution to the problem of sensor coordination to ensure the safe, reliable, and robust operation of advanced energy systems. The differentiating aspect of the proposed work is in shift- ing the focus towards what to observe rather than how to observe in large sensor networks, allowing the agents to actively determine both the structure of the network and the relevance of the information they are seeking to collect. In addition to providing an implicit coordination mechanism, this approach allows the system to be reconfigured in response to changing needs (e.g., sudden external events requiring new responses) or changing sensor network characteristics (e.g., sudden changes to plant condition). Outcome Summary: All milestones associated with this project have been completed. In particular, private sensor objective functions were developed which are aligned with the global objective function, sensor effectiveness has been improved by using sensor teams, system efficiency has been improved by 30% using difference evaluation func- tions, we have demonstrated system reconfigurability for 20% changes in system con- ditions, we have demonstrated extreme scalability of our proposed algorithm, we have demonstrated that sensor networks can overcome disruptions of up to 20% in network conditions, and have demonstrated system reconfigurability to 20% changes in system conditions in hardware-based simulations. This final report summarizes how each of these milestones was achieved, and gives insight into future research possibilities past the work which has been completed. The following publications support these milestones [6, 8, 9, 10, 16, 18, 19].

Tumer, Kagan

2013-07-31T23:59:59.000Z

83

Advanced turbine systems: Studies and conceptual design  

SciTech Connect (OSTI)

The ABB selection for the Advanced Turbine System (ATS) includes advanced developments especially in the hot gas path of the combustion turbine and new state-of-the-art units such as the steam turbine and the HRSG. The increase in efficiency by more than 10% multiplicative compared to current designs will be based on: (1) Turbine Inlet Temperature Increase; (2) New Cooling Techniques for Stationary and Rotating Parts; and New Materials. Present, projected component improvements that will be introduced with the above mentioned issues will yield improved CCSC turbine performance, which will drive the ATS selected gas-fired reference CC power plant to 6 % LHV or better. The decrease in emission levels requires a careful optimization of the cycle design, where cooling air consumption has to be minimized. All interfaces of the individual systems in the complete CC Plant need careful checks, especially to avoid unnecessary margins in the individual designs. This study is an important step pointing out the feasibility of the ATS program with realistic goals set by DOE, which, however, will present challenges for Phase II time schedule of 18 months. With the approach outlined in this study and close cooperation with DOE, ATS program success can be achieved to deliver low emissions and low cost of electricity by the year 2002. The ABB conceptual design and step approach will lead to early component demonstration which will help accelerate the overall program objectives.

van der Linden, S.; Gnaedig, G.; Kreitmeier, F.

1993-11-01T23:59:59.000Z

84

Advanced Energy Systems Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd Ltd Jump to: navigation, search Name Advanced Energy Systems Ltd Place Welshpool, Western Australia, Australia Zip 6016 Sector Solar, Wind energy Product Manufacturer and distributor of micro wind turbines, solar systems, gas generators and balance of plant. Currently undergoing restructuring. Coordinates 38.211449°, -85.574524° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.211449,"lon":-85.574524,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

85

Gills Onions Advanced Energy Recovery System  

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

Gills Onions Gills Onions Advanced Energy Recovery System Turning a Waste Liability into a Renewable Resource Waste to Energy Using Fuel Cells Workshop Washington, DC J 13 2011 January 13, 2011 Dave Reardon, , PE National Director - Water Sustainability HDR Engineering, Inc., Folsom, CA t Gills Onions Backg ground ● 3 rd largest onion p producer in the nation ● 100,000 square-foot processing facility in Oxnard, CA ● 800,000 lbs of onions processed every day ● Prepackaged diced, sliced, whole, pureed, and ring product line P i l 6 ● Process is operati ional 6 days a week - - The Problem... ● 250,000 lbs/day waste onion hauled off site - H l Hauled b d by t tract tor and d wagon t to l local fi l field ld s t to incorporate into soil - Disrupted traffic

86

Advanced Wind Energy Systems AWES | Open Energy Information  

Open Energy Info (EERE)

AWES AWES Jump to: navigation, search Name Advanced Wind Energy Systems (AWES) Place Toms River, New Jersey Sector Wind energy Product Advanced Wind Energy Systems (AWES) was formed in 2006 to commercialize the novel wind turbine energy capture technologies invented by Frank McClintic, AWES founder and Chief Designer. References Advanced Wind Energy Systems (AWES)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Advanced Wind Energy Systems (AWES) is a company located in Toms River, New Jersey . References ↑ "Advanced Wind Energy Systems (AWES)" Retrieved from "http://en.openei.org/w/index.php?title=Advanced_Wind_Energy_Systems_AWES&oldid=341809

87

Advanced Boost System Development for Diesel HCCI/LTC Application...  

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

Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation ace037sun2011o.pdf More Documents & Publications Advanced Boost System Development for Diesel...

88

Advanced Systems of Efficient Use of Electrical Energy SURE ...  

Open Energy Info (EERE)

of Efficient Use of Electrical Energy SURE (Smart Grid Project) Jump to: navigation, search Project Name Advanced Systems of Efficient Use of Electrical Energy SURE Country...

89

Advanced Boost System Development for Diesel HCCI/LTC Application...  

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

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ace037sun2012o.pdf More Documents & Publications Advanced Boost System Development for Diesel...

90

The advanced flame quality indicator system  

SciTech Connect (OSTI)

By combining oil tank monitoring, systems diagnostics and flame quality monitoring in an affordable system that communicates directly with dealers by telephone modem, Insight Technologies offers new revenue opportunities and the capability for a new order of customer relations to oil dealers. With co-sponsorship from New York State Energy Research and Development Authority, we have incorporated several valuable functions to a new product based on the original Flame Quality Indicator concept licensed from the US DOE`s Brookhaven National Laboratory. The new system is the Advanced Flame Quality Indicator, or AFQI. As before, the AFQI monitors and reports the intensity of the burner flame relative to a calibration established when the burner is set up at AFQI installation. Repairs or adjustments are summoned by late-night outgoing telephone calls when limits are exceeded in either direction, indicating an impending contamination or other malfunction. A independently, a pressure transducer for monitoring oil tank level and filter condition, safety lockout alarms and a temperature monitor; all reporting automatically at instructed intervals via an on-board modem to a central station PC computer (CSC). Firmware on each AFQI unit and Insight-supplied software on the CSC automatically interact to maintain a customer database for an oil dealer, an OEM, or a regional service contractor. In addition to ensuring continuously clean and efficient operation, the AFQI offers the oil industry a new set of immediate payoffs, among which are reduced outages and emergency service calls, shorter service calls from cleaner operation, larger oil delivery drops, the opportunity to stretch service intervals to as along as three years in some cases, new selling features to keep and attract customers, and greatly enhanced customer contact, quality and reliability.

Oman, R.; Rossi, M.J.; Calia, V.S.; Davis, F.L.; Rudin, A. [Insight Technologies, Inc., Bohemia, NY (United States)

1997-09-01T23:59:59.000Z

91

Projects To Develop Novel Monitoring Networks for Advanced Power Systems  

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

To Develop Novel Monitoring Networks for Advanced Power To Develop Novel Monitoring Networks for Advanced Power Systems Selected Projects To Develop Novel Monitoring Networks for Advanced Power Systems Selected September 1, 2010 - 1:00pm Addthis Washington, DC - Five projects that will develop technologically sophisticated monitoring networks for advanced fossil energy power systems have been selected for continued research by the U.S. Department of Energy (DOE). The projects will support efforts by the Office of Fossil Energy's (FE) Advanced Research--Coal Utilization Science (CUS) Program to study novel approaches in model development and validation; monitoring refractory health; and wireless, self-powered sensors for advanced, next-generation power systems. They will monitor the status of equipment, materials

92

National Aeronautics and Space Administration Advanced Exploration Systems  

E-Print Network [OSTI]

National Aeronautics and Space Administration Advanced Exploration Systems NASA Advisory Council · Exploration Committee December 10, 2013 Jason Crusan, Director, Advanced Exploration Systems Human Exploration and Operations Mission Directorate · NASA Headquarters #12;2 Topics · HEOMD Investment Prioritization Process

Waliser, Duane E.

93

Advanced Process and Chemical Complex Analysis Systems Derya Ozyurtb  

E-Print Network [OSTI]

157g Advanced Process and Chemical Complex Analysis Systems Derya Ozyurtb , Aimin Xub , Thomas for statements or opinions contained in papers or printed in its publications. #12;Abstract: The Advanced Process Analysis System is used to perform economic and environmental evaluations of a plant. The main components

Pike, Ralph W.

94

ADVANCED POWER SYSTEMS ASH BEHAVIOR IN POWER SYSTEMS  

SciTech Connect (OSTI)

The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: ? Determine the current status of the fundamental ash interactions and deposition formation mechanisms as already reported through previous or ongoing projects at the EERC or in the literature. ? Determine sintering mechanisms for temperatures and particle compositions that are less well known and remain for the most part undetermined. ? Identify the relationship between the temperature of critical viscosity (Tcv ) as measured in a viscometer and the crystallization occurring in the melt. ? Perform a literature search on the use of heated-stage microscopy (HSM) for examining in situ ash-sintering phenomena and then validate the use of HSM in the determination of viscosity in spherical ash particles. ? Ascertain the formation and stability of specific mineral or amorphous phases in deposits typical of advanced power systems. ? Evaluate corrosion for alloys being used in supercritical combustion systems.

CHRISTOPHER J. ZYGARLICKE; DONALD P. MCCOLLOR; JOHN P. KAY; MICHAEL L. SWANSON

1998-09-01T23:59:59.000Z

95

Advanced HD Engine Systems and Emissions Control Modeling and...  

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

Meeting vss089daw2012p.pdf More Documents & Publications Evaluation of 2010 Urea-SCR Technology for Hybrid Vehicles using PSAT System Simulations Advanced LD Engine Systems...

96

Energy Department Awards $7 Million to Advance Hydrogen Storage Systems  

Office of Energy Efficiency and Renewable Energy (EERE)

The Energy Department today announced $7 million for six projects to develop lightweight, compact, and inexpensive advanced hydrogen storage systems that will enable longer driving ranges and help make fuel cell systems competitive for different platforms and sizes of vehicles.

97

Advanced turbine systems study system scoping and feasibility study  

SciTech Connect (OSTI)

United Technologies Research Center, Pratt Whitney Commercial Engine Business, And Pratt Whitney Government Engine and Space Propulsion has performed a preliminary analysis of an Advanced Turbine System (ATS) under Contract DE-AC21-92MC29247 with the Morgantown Energy Technology Center. The natural gas-fired reference system identified by the UTC team is the Humid Air Turbine (HAT) Cycle in which the gas turbine exhaust heat and heat rejected from the intercooler is used in a saturator to humidify the high pressure compressor discharge air. This results in a significant increase in flow through the turbine at no increase in compressor power. Using technology based on the PW FT4000, the industrial engine derivative of the PW4000, currently under development by PW, the system would have an output of approximately 209 MW and an efficiency of 55.3%. Through use of advanced cooling and materials technologies similar to those currently in the newest generation military aircraft engines, a growth version of this engine could attain approximately 295 MW output at an efficiency of 61.5%. There is the potential for even higher performance in the future as technology from aerospace R D programs is adapted to aero-derivative industrial engines.

Not Available

1993-04-01T23:59:59.000Z

98

E-Print Network 3.0 - advanced traveler information systems Sample...  

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

by Explorit Topic List Advanced Search Sample search results for: advanced traveler information systems Page: << < 1 2 3 4 5 > >> 1 Page 1 of 2 Travel Advance Requirements...

99

Advanced Non-Distributed Operating Systems Course Yair Wiseman  

E-Print Network [OSTI]

1 Advanced Non-Distributed Operating Systems Course Yair Wiseman Computer Science Department Bar://www.cs.biu.ac.il/~wiseman wiseman@cs.huji.ac.il Keywords: Operating Systems, Graduate Course, Operating System Kernel, Non-Distributed Operating Systems. Abstract The use of Non-Distributed Operating Systems is very common and old. Many

Wiseman, Yair

100

Rethinking Biodiversity Conservation Effectiveness and Evaluation in the National Protected Areas Systems of Tropical Islands: The Case of Jamaica and the Dominican Republic.  

E-Print Network [OSTI]

??Island conservation theory and practice with regard to conservation of tropical terrestrial biodiversity in protected areas systems has yet to be adequately addressed in conservation (more)

Davis, Suzanne Mae Camille

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Rethinking energy conservation via an evaluation of the heating system: A  

E-Print Network [OSTI]

Rethinking energy conservation via an evaluation of the heating system: A Case Study of Zilverling Intan Permatasari The purpose of this research is to study the heating system in Zilverling building and find some possibilities to conserve the energy. The first step of this research investigates the static

Vellekoop, Michel

102

NETL: Gasification Systems - Advanced Virtual Energy Simulation Training  

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

Advanced Virtual Energy Simulation Training And Research (AVESTAR(tm)) Facility Advanced Virtual Energy Simulation Training And Research (AVESTAR(tm)) Facility Project No: Adv Gas-FY131415 Task 6 Developed as a part of NETL's initiative to advance new clean coal technology, the Advanced Virtual Energy Simulation Training And Research (AVESTARTM) Center is focused on training engineers and energy plant operators in the efficient, productive, and safe operation of highly efficient power generation systems that also protect the environment. Comprehensive dynamic simulator-based instruction better prepares operators and engineers to manage advanced energy plants according to economic constraints while minimizing or avoiding the impact of any potentially harmful, wasteful, or inefficient events. Advanced Virtual Energy Simulation Training and Research Center - AVESTAR

103

Advanced lubrication systems and materials. Final report  

SciTech Connect (OSTI)

This report described the work conducted at the National Institute of Standards and Technology under an interagency agreement signed in September 1992 between DOE and NIST for 5 years. The interagency agreement envisions continual funding from DOE to support the development of fuel efficient, low emission engine technologies in terms of lubrication, friction, and wear control encountered in the development of advanced transportation technologies. However, in 1994, the DOE office of transportation technologies was reorganized and the tribology program was dissolved. The work at NIST therefore continued at a low level without further funding from DOE. The work continued to support transportation technologies in the development of fuel efficient, low emission engine development. Under this program, significant progress has been made in advancing the state of the art of lubrication technology for advanced engine research and development. Some of the highlights are: (1) developed an advanced high temperature liquid lubricant capable of sustaining high temperatures in a prototype heat engine; (2) developed a novel liquid lubricant which potentially could lower the emission of heavy duty diesel engines; (3) developed lubricant chemistries for ceramics used in the heat engines; (4) developed application maps for ceramic lubricant chemistry combinations for design purpose; and (5) developed novel test methods to screen lubricant chemistries for automotive air-conditioning compressors lubricated by R-134a (Freon substitute). Most of these findings have been reported to the DOE program office through Argonne National Laboratory who manages the overall program. A list of those reports and a copy of the report submitted to the Argonne National Laboratory is attached in Appendix A. Additional reports have also been submitted separately to DOE program managers. These are attached in Appendix B.

Hsu, S.

1998-05-07T23:59:59.000Z

104

Webinar: Systems Performance Advancement II Funding Opportunity Announcement  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy is hosting a webinar on Thursday, January 22, 2015 on the Systems Performance Advancement II: Component Metric Validation Funding Opportunity Announcement (FOA)....

105

Advanced Water Treatment System: Technological and Economic Evaluations  

Science Journals Connector (OSTI)

The supply of potable water from polluted rivers, lakes, unsafe wells, ... most effective methods to obtain low cost drinking water is desalination. In this chapter, an advanced water treatment system, based on electrodialysis

Artak Barseghyan

2011-01-01T23:59:59.000Z

106

Vortex Hydro Energy (TRL 5 6 System) - Advanced Integration of...  

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

- PB500, 500 kW Utility-Scale PowerBuoy Project WaveBob (TRL 5 6 System) - Advanced Wave Energy Conversion Project Water Power Program About the Program Research &...

107

Initial Results of Advanced Glass Slumping for Commercial CSP Systems  

Science Journals Connector (OSTI)

We present the initial results of advanced glass slumping for commercial CSP systems. It is shown that the fast-slumping process is repeatable and accurate using a furnace and curved...

Stalcup, Thomas; Hammer, Kimberly; Lesser, David; Olbert, Blain; Warner, Steve; Wheelwright, Brian; Angel, Roger P; Villanueva, Jordi

108

Advanced Boost System Development for Diesel HCCI/LTC Application...  

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

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. ace037sun2010o.pdf More Documents & Publications Advanced Boost System Development for Diesel...

109

Advanced boost system development for diesel HCCI/LTC applications...  

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

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ace36sun.pdf More Documents & Publications Advanced boost system development for diesel HCCILTC...

110

Thermal Simulation of Advanced Powertrain Systems  

Broader source: Energy.gov [DOE]

Under this project, the Volvo complete vehicle model was modified to include engine and exhaust system thermal outputs and cooling system to enable WHR simulations from a system perspective.

111

Advanced turbine systems phase II - conceptual design and product development. Final report, August 1993--July 1996  

SciTech Connect (OSTI)

The National Energy Strategy (NES) calls for a balanced program of greater energy efficiency, use of alternative fuels, and the environmentally responsible development of all U.S. energy resources. Consistent with the NES, a Department of Energy (DOE) program has been created to develop Advanced Turbine Systems (ATS). The technical ATS requirements are based upon two workshops held in Greenville, SC that were sponsored by DOE and hosted by Clemson University. The objective of this 8-year program, managed jointly by DOE`s Office of Fossil Energy, and, Office of Conservation and Renewable Energy, is to develop natural-gas-fired base load power plants that will have cycle efficiencies greater than 60%, lower heating value (LHV), be environmentally superior to current technology, and also be cost competitive. The program will include work to transfer advanced technology to the coal- and biomass-fueled systems being developed in other DOE programs.

NONE

1996-10-01T23:59:59.000Z

112

WaveBob (TRL 5 6 System) - Advanced Wave Energy Conversion Project...  

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

WaveBob (TRL 5 6 System) - Advanced Wave Energy Conversion Project WaveBob (TRL 5 6 System) - Advanced Wave Energy Conversion Project WaveBob (TRL 5 6 System) - Advanced Wave...

113

Advanced fenestration systems for improved daylight performance  

E-Print Network [OSTI]

daylighting designs is a lack of systems perspective that accounts for, and provides an integrated solution

Selkowitz, S.; Lee, E.S.

1998-01-01T23:59:59.000Z

114

DOE Announces Webinars on Energy Systems Advances, Hydrogen Safety Events  

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

Webinars on Energy Systems Advances, Hydrogen Safety Webinars on Energy Systems Advances, Hydrogen Safety Events Databases, and More DOE Announces Webinars on Energy Systems Advances, Hydrogen Safety Events Databases, and More September 9, 2013 - 12:00pm Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce. Webinars are free; however, advanced registration is typically required. You can also watch archived webinars and browse previously aired videos, slides, and transcripts. Upcoming Webinars September 10: Live Webinar on the Hydrogen Safety Events Database Webinar Sponsor: Fuel Cell Technologies Office The Energy Department will present a live webcast titled "What We Can Learn

115

Advanced Materials for Energy Systems | Global and Regional Solutions  

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

Advanced Materials for Energy Systems Advanced Materials for Energy Systems The Advanced Materials Group's mission is to conduct research on materials in extreme environments for advanced energy systems. As part of that mission, the group utilizes synchrotron characterization techniques such as diffraction, spectroscopy, and imaging and is developing sample chambers for the in situ study of materials at the National Synchrotron Light Source (NSLS). The 200 MeV proton beam of the BNL Linac and the target facility of the Brookhaven Linear Isotope Producer (BLIP) is being extensively used for irradiation damage studies on materials for fast !ssion and fusion reactors as well as high particle accelerator elements such as pion production targets for neutrino experiments. The irradiation facility is augmented with post-irradiation hot labs where analysis and

116

-type contraction for systems of conservation laws Denis Serre  

E-Print Network [OSTI]

(u), rj(u), j(u) the jth eigen-(value, vector, form) of the differential df(u). In particular, we have j, 2013 Abstract. The semi-group associated with the Cauchy problem for a scalar conservation law is known · rk 0 for k = j. When n = 1 (the scalar case), it is known that the semi-group associated

Vasseur, Alexis

117

Advanced Management of Compressed Air Systems  

Broader source: Energy.gov [DOE]

Find out how a compressed air system works and the benefits of optimal compressed air system performance. This training is designed to help end users as well as industry solution providers learn...

118

Fact Sheet: Advanced Natural Gas Systems Manufacturing R&D Initiative...  

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

Advanced Natural Gas Systems Manufacturing R&D Initiative Fact Sheet: Advanced Natural Gas Systems Manufacturing R&D Initiative The following fact sheet outlines one of the...

119

Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioner...  

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

Thin Film Thermoelectric Systems forEfficient Air-Conditioners Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioners Presents recent advances in thermoelectric...

120

E-Print Network 3.0 - advanced information systems Sample Search...  

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

systems Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced information systems Page: << < 1 2 3 4 5 > >> 1 Minor revision--posted 71608...

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

E-Print Network 3.0 - advanced noxtech system Sample Search Results  

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

noxtech system Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced noxtech system Page: << < 1 2 3 4 5 > >> 1 TATE OF CALIFORNI ENERGY...

122

Audit of Funding for Advanced Radioisotope Power Systems, IG-0413  

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

October 17, 1997 October 17, 1997 MEMORANDUM FOR THE SECRETARY FROM: John C. Layton Inspector General SUBJECT: INFORMATION: "Audit of Funding for Advanced Radioisotope Power Systems" BACKGROUND: The Department of Energy's (Department) Advanced Radioisotope Power Systems Program maintains the sole national capability and facilities to produce radioisotope power systems for the National Aeronautics and Space Administration (NASA), the Department of Defense, and other Federal agencies. For the past seven years the program emphasis has been on providing power systems for NASA's Cassini mission to Saturn, which was launched earlier this month. We initiated this audit to determine whether the

123

Requirements For An Advanced Fueling System  

E-Print Network [OSTI]

supported by DOE grant No. DE-FG03-02ER54686 Supported by 1 #12;Reactor Fueling Requirements Not Adequately for current drive, a fueling system is all that a burning plasma system may be able to rely on to alter core density peaking via. core fuelling provides more flexibility to reach ignition 3Raman/FESAC/7Aug07 #12

Princeton Plasma Physics Laboratory

124

VFD Technology's Energy Conservation Application at Metro Ventilation Air-conditioning System  

E-Print Network [OSTI]

Shenzhen metro has been applied the VFD control technique and close loop negative control logic to adjust and control the temperature and humidity of public area and conserve the energy on HVAC system of children palace station and Fumin station...

Li, G.

2006-01-01T23:59:59.000Z

125

Advanced Energy Systems Inc AESI also Advanced Energy Inc | Open Energy  

Open Energy Info (EERE)

AESI also Advanced Energy Inc AESI also Advanced Energy Inc Jump to: navigation, search Name Advanced Energy Systems Inc (AESI) (also Advanced Energy Inc) Place Tempe, Arizona Zip 85283-4315 Sector Renewable Energy Product Advanced Energy Systems specialises in the engineering design and development of power conditioning and control electronics for renewable energy generation. Coordinates 33.42551°, -111.937419° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.42551,"lon":-111.937419,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

126

Advanced thermal barrier coating system development: Technical progress report  

SciTech Connect (OSTI)

Objectives are to provide an improved TBC system with increased temperature capability and improved reliability, for the Advanced Turbine Systems program (gas turbine). The base program consists of three phases: Phase I, program planning (complete); Phase II, development; and Phase III (selected specimen-bench test). Work is currently being performed in Phase II.

NONE

1996-08-07T23:59:59.000Z

127

Summary Review of Advanced Inverter Technologies for Residential PV Systems  

E-Print Network [OSTI]

Summary Review of Advanced Inverter Technologies for Residential PV Systems This report summarizes current and emerging standards for residential PV systems and identifies the status of emerging inverter of Hawai`i at Manoa #12;Summary of Inverter Technologies Prepared for the U.S. Department of Energy Office

128

Advanced Open-Cycle Desiccant Cooling System  

E-Print Network [OSTI]

The concept of staged regeneration as means of improving the desiccant cooling system performance is the subject of investigation in this study. In the staged regeneration, the regeneration section of desiccant dehumidifier is divided into two parts...

Ko, Y. J.; Charoensupaya, D.; Lavan, Z.

1989-01-01T23:59:59.000Z

129

Advanced Technology Light Duty Diesel Aftertreatment System  

Broader source: Energy.gov [DOE]

Light duty diesel aftertreatment system consisting of a DOC and selective catalytic reduction catalyst on filter (SCRF), close coupled to the engine with direct gaseous ammonia delivery is designed to reduce cold start NOx and HC emissions

130

Advanced Facades, Daylighting, and Complex Fenestration Systems  

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

Facades, Daylighting, and Facades, Daylighting, and Complex Fenestration Systems Eleanor Lee Lawrence Berkeley National Laboratory eslee@lbl.gov 510-486-4997 April 5, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: In order to reach BTO's aggressive 50% energy savings goal by 2030, innovative façade systems must minimize both lighting and HVAC energy end use consumption more optimally while addressing occupant comfort and amenity requirements.

131

Advanced Fuel Cell Systems | Open Energy Information  

Open Energy Info (EERE)

Fuel Cell Systems Fuel Cell Systems Place Amherst, New York Zip 14228 Product Collaboration of three companies (ATSI Engineering, ENrg, BioEconomy Development Corp) active in the development and application of fuel cell systems. Coordinates 44.450509°, -89.281675° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.450509,"lon":-89.281675,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

132

Advanced Power Systems and Controls Laboratory  

E-Print Network [OSTI]

photovoltaic generation facility. Solar panel output is in white, and the response of the XP DPR is in red Solar Power Generation Introduction The rapid growth of wind and solar power is a key driver of the development of grid-scale Battery Energy Storage Systems (BESS). A well implemented BESS co-located with solar

Ben-Yakar, Adela

133

Northwest Energy Innovations (TRL 5 6 System)- WETNZ MtiMode Wave Energy Converter Advancement Project  

Broader source: Energy.gov [DOE]

Northwest Energy Innovations (TRL 5 6 System) - WETNZ MtiMode Wave Energy Converter Advancement Project

134

Corrosion performance of materials for advanced combustion systems  

SciTech Connect (OSTI)

Conceptual designs of advanced combustion systems that utilize coal as a feedstock require high-temperature furnaces and heat transfer surfaces capable of operating at much higher temperatures than those in current coal-fired power plants. The combination of elevated temperatures and hostile combustion environments requires development and application of advanced ceramic materials for heat exchangers in these designs. This paper characterizes the chemistry of coal-fired combustion environments over the wide temperature range of interest in these systems and discusses some of the experimental results for several materials obtained from laboratory tests and from exposures in a pilot-scale facility.

Natesan, K. [Argonne National Lab., IL (United States); Freeman, M.; Mathur, M. [Pittsburgh Energy Technology Center, PA (United States)

1995-05-01T23:59:59.000Z

135

System and method for advanced power management  

DOE Patents [OSTI]

A power management system is provided that includes a power supply means comprising a plurality of power supply strings, a testing means operably connected to said plurality of power supply strings for evaluating performance characteristics of said plurality of power supply strings, and a control means for monitoring power requirements and comprising a switching means for controlling switching of said plurality of power supply strings to said testing means.

Atcitty, Stanley (Albuquerque, NM); Symons, Philip C. (Surprise, AZ); Butler, Paul C. (Albuquerque, NM); Corey, Garth P. (Albuquerque, NM)

2009-07-28T23:59:59.000Z

136

IAdvanced Integrated Hypersonic Entry SystemsAdvanced Integrated Hypersonic Entry Systems 2009 Phase II  

E-Print Network [OSTI]

SBIR SBIR 66 67 IAdvanced Integrated Hypersonic Entry SystemsAdvanced Integrated Hypersonic Entry of materials in providing tailored stiffness and rigidity for hypersonic entry vehicles. The proposed

137

Cotton Insect Pests and Natural Enemies in Conventional and Conservation Tillage Systems at AG-CARES, Lamesa, TX, 2003.  

E-Print Network [OSTI]

TITLE: Cotton Insect Pests and Natural Enemies in Conventional and Conservation Tillage Systems Research Scientist, Research Associate, Graduate Research Assistants (TAES). INTRODUCTION: Cotton aided to sustainable cotton production in Texas. Adoption of the minimum tillage (conservation tillage

Mukhtar, Saqib

138

Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living Space in Summer  

E-Print Network [OSTI]

Energy Conservation and Comfort of Heat Pump Desiccant Air Conditioning System in Actual Living and total heat exchanger in terms of both energy conservation and thermal comfort in summer. 1. COP

Miyashita, Yasushi

139

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of chilled water pumps  

E-Print Network [OSTI]

Procedures to identify Energy Conservation Opportunities applied to HVAC system: example of VSD of HVAC equipment using variable speed drive (VSD) is an Energy Conservation Opportunity (ECO) which can

Paris-Sud XI, Université de

140

Advanced Burners and Combustion Controls for Industrial Heat Recovery Systems  

E-Print Network [OSTI]

ADVANCED BURNERS AND COMBUSTION CONTROLS FOR INDUSTRIAL HEAT RECOVERY SYSTEMS J.L.FERRI GTE PRODUCTS CORPORATION TOWANDA, PA ABSTRACT When recuperators are installed on indus trial furnaces, burners and ratio control systems must... recuperators by demonstrating their technical and economi cal feasibility in well monitored field installations (1). During the contract, it became evident to GTE that a systems approach (recuperator, burner, and con troIs) is necessary to be accepted...

Ferri, J. L.

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Further Study on the Conservation Laws of Energy-momentum Tensor Density for a Gravitational System  

E-Print Network [OSTI]

The various methods to derive Einstein conservation laws and the relevant definitions of energy-momentum tensor density for gravitational fields are studied in greater detail. It is shown that these methods are all equivalent. The study on the identical and different characteristics between Lorentz and Levi-Civita conservation laws and Einstein conservation laws is thoroughly explored. Whether gravitational waves carry the energy-momentum is discussed and some new interpretations for the energy exchanges in the gravitational systems are given. The viewpoint that PSR1913 does not verify the gravitational radiation is confirmed.

Chen Fang-Pei

2008-05-21T23:59:59.000Z

142

NETL: Gasification Systems - Evaluation of the Benefits of Advanced Dry  

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

Feed Systems Feed Systems Evaluation of the Benefits of Advanced Dry Feed System for Low Rank Coal Project Number: DE-FE0007902 General Electric Company (GE) is evaluating and demonstrating the benefits of novel dry feed technologies to effectively, reliably, and economically provide feeding of low-cost, low-rank coals into commercial Integrated Gasification Combined Cycle (IGCC) systems. GE is completing comparative techno-economic studies of two IGCC power plant cases, one without and one with advanced dry feed technologies. A common basis of design is being developed so that overall assumptions and methodologies are common in the two cases for both technical and economic areas. The baseline case, without advanced dry feed technologies, will use operational data from the Eastman Chemical Company Kingsport gasification facility in combination with DOE/NETL's Cost and Performance Baseline Low-Rank Coal to Electricity IGCC study for both cost and performance comparisons. Advanced dry feed technologies, based upon the Posimetric® pump currently under development by GE, will be developed to match the proposed plant conditions and configuration, and will be analyzed to provide comparative performance and cost information to the baseline plant case. The scope of this analysis will cover the feed system from the raw coal silo up to, and including, the gasifier injector. Test data from previous and current testing will be summarized in a report to support the assumptions used to evaluate the advanced technologies and the potential value for future applications. This study focuses primarily on IGCC systems with 90 percent carbon capture, utilization, and storage (CCUS), but the dry feed system will be applicable to all IGCC power generating plants, as well as other industries requiring pressurized syngas.

143

MARKET-BASED ADVANCED COAL POWER SYSTEMS FINAL REPORT  

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

MARKET-BASED ADVANCED MARKET-BASED ADVANCED COAL POWER SYSTEMS FINAL REPORT MAY 1999 DOE/FE-0400 U.S. Department of Energy Office of Fossil Energy Washington, DC 20585 Market-Based Advanced Coal Power Systems 1-1 December 1998 1. INTRODUCTION As deregulation unfolds and privatization of the utility market takes shape, priorities for power plant economics have shifted toward those of a "bottom-line" business and away from a regulated industry. Competition in utility generation and the exposure risks of large capital investments have led to a preference to minimize capital costs and fixed and variable operation and maintenance costs. With global competition from independent power producers (IPPs), non- utility generators, and utilities, the present trend of investments is with conventional pulverized

144

Siemens Westinghouse Advanced Turbine Systems Program Final Summary  

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

SIEMENS WESTINGHOUSE ADVANCED TURBINE SIEMENS WESTINGHOUSE ADVANCED TURBINE SYSTEMS PROGRAM FINAL SUMMARY Ihor S. Diakunchak Greg R. Gaul Gerry McQuiggan Leslie R. Southall Siemens Westinghouse Power Corporation 4400 Alafaya Trail Orlando, Florida 32826-2399 ABSTRACT This paper summarises achievements in the Siemens Westinghouse Advanced Turbine Systems (ATS) Program. The ATS Program, co-funded by the U.S. Department of Energy, Office of Fossil Energy, was a very successful multi-year (from 1992 to 2001) collaborative effort between government, industry and participating universities. The program goals were to develop technologies necessary for achieving significant gains in natural gas-fired power generation plant efficiency, a reduction in emissions, and a decrease in cost of electricity, while maintaining current

145

E-Print Network 3.0 - advanced-cycle systems final Sample Search...  

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

instruction; eventqueue.advance(cyclesconsumed); eventqueue.advance(cycles... goal of simulation is to enable rapid exploration and validation of system designs before...

146

Analysis of advanced solar hybrid desiccant cooling systems for buildings  

SciTech Connect (OSTI)

This report describes an assessment of the energy savings possible from developing hybrid desiccant/vapor-compression air conditioning systems. Recent advances in dehumidifier design for solar desiccant cooling systems have resulted in a dehumidifier with a low pressure drop and high efficiency in heat and mass transfer. A recent study on hybrid desiccant/vapor compression systems showed a 30%-80% savings in resource energy when compared with the best conventional systems with vapor compression. A system consisting of a dehumidifier with vapor compression subsystems in series was found to be the simplest and best overall performer.

Schlepp, D.; Schultz, K.

1984-10-01T23:59:59.000Z

147

MIT - Center for Advanced Nuclear Energy Systems | Open Energy Information  

Open Energy Info (EERE)

MIT - Center for Advanced Nuclear Energy Systems MIT - Center for Advanced Nuclear Energy Systems Jump to: navigation, search Logo: MIT - Center for Advanced Nuclear Energy Systems Name MIT - Center for Advanced Nuclear Energy Systems Address 77 Massachusetts Avenue, 24-215 Place Cambridge, Massachusetts Zip 02139-4307 Phone number (617) 452-2660 Coordinates 42.3613041°, -71.0967653° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.3613041,"lon":-71.0967653,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

148

Energy Conservation Aspect of Energy Systems Technology Education Program  

E-Print Network [OSTI]

The primary purpose of this paper is to present a brief explanation of the Energy Systems Technology Education Program (ESTEP). This program is a system of continuing education that has been devised for the technical and supervisory personnel...

McBride, R. B.

1982-01-01T23:59:59.000Z

149

Energy Conservation of Air Conditioning Systems in Large Public Buildings  

E-Print Network [OSTI]

with the heating characteristics of the exterior -protected construction, the set value of the temperature of the air-conditioning, the lectotype of the Central air-conditioning system, the regulation and the modification of the transmission and distribution system...

Liu, P.; Li, D.

2006-01-01T23:59:59.000Z

150

Hot Water Heating System Operation and Energy Conservation  

E-Print Network [OSTI]

Based on an example of the reconstruction of a hot water heating system, this paper provides an analysis and comparison of the operations of hot water heating systems, including supply water temperature adjustment, flow adjustment during each...

Shao, Z.; Chen, H.; Wei, P.

2006-01-01T23:59:59.000Z

151

Advanced Controls and Sustainable Systems for Residential Ventilation  

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

Advanced Controls and Sustainable Systems for Residential Ventilation Advanced Controls and Sustainable Systems for Residential Ventilation Title Advanced Controls and Sustainable Systems for Residential Ventilation Publication Type Report LBNL Report Number LBNL-5968E Year of Publication 2012 Authors Turner, William J. N., and Iain S. Walker Date Published 12/2012 Keywords ashrae standard 62,2, california title 24, passive ventilation, residential ventilation, ventilation controller Abstract Whole-house ventilation systems are becoming commonplace in new construction, remodeling/renovation, and weatherization projects, driven by combinations of specific requirements for indoor air quality (IAQ), health, and compliance with standards, such as ASHRAE 62.2. At the same time we wish to reduce the energy use in homes and therefore minimize the energy used to provide ventilation. This study examined several approaches to reducing the energy requirements of providing acceptable IAQ in residential buildings. Two approaches were taken. The first used RIVEC - the Residential Integrated VEntilation Controller - a prototype ventilation controller that aims to deliver whole-house ventilation rates that comply with ventilation standards, for the minimum use of energy. The second used passive and hybrid ventilation systems, rather than mechanical systems, to provide whole-house ventilation.

152

Integrated intelligent systems in advanced reactor control rooms  

SciTech Connect (OSTI)

An intelligent, reactor control room, information system is designed to be an integral part of an advanced control room and will assist the reactor operator's decision making process by continuously monitoring the current plant state and providing recommended operator actions to improve that state. This intelligent system is an integral part of, as well as an extension to, the plant protection and control systems. This paper describes the interaction of several functional components (intelligent information data display, technical specifications monitoring, and dynamic procedures) of the overall system and the artificial intelligence laboratory environment assembled for testing the prototype. 10 refs., 5 figs.

Beckmeyer, R.R.

1989-01-01T23:59:59.000Z

153

High-temperature corrosion in advanced combustion systems  

SciTech Connect (OSTI)

Conceptual designs of advanced combustion systems that utilize coal as a feedstock require high temperature furnaces and heat transfer surfaces capable of operation at much elevated temperatures than those prevalent in current coal-fired power plants. The combination of elevated temperatures and hostile combustion environments necessitate development/application of advanced ceramic materials in these designs. The present paper characterizes the chemistry of coal-fired combustion environments over a wide temperature range of interest in these systems and discusses preliminary experimental results on several materials with potential for application in these systems. An experimental program has been initiated to evaluate materials for advanced combustion systems. Several candidate materials have been identified for evaluation. The candidates included advanced metallic alloys, monolithic ceramics, ceramic particulate/ceramic matrix composites, ceramic fiber/ceramic matrix composites, and ceramic whisker/ceramic matrix composites. The materials examined so far included nickel-base superalloys, alumina, stabilized zirconia, different types of silicon carbide, and silicon nitride. Coupon specimens of several of the materials have been tested in an air environment at 1000, 1200, and 1400{degree}C for 168 h. In addition, specimens were exposed to sodium-sulfate-containing salts at temperatures of 1000 and 1200{degree}C for 168 h. Extensive microstructural analyses were conducted on the exposed specimens to evaluate the corrosion performance of the materials for service in air and fireside environments of advanced coal-fired boilers. Additional tests are underway with several of the materials to evaluate their corrosion performance as a function of salt chemistry, alkali vapor concentration, gas chemistry, exposure temperature, and exposure time.

Natesan, K.; Yanez-Herrero, M.; Fornasieri, C.

1993-11-01T23:59:59.000Z

154

Corrosion performance of materials for advanced combustion systems  

SciTech Connect (OSTI)

Conceptual designs of advanced combustion systems that utilize coal as a feedstock require high-temperature furnaces and heat transfer surfaces capable of operating at more elevated temperatures than those prevalent in current coal-fired power plants. The combination of elevated temperatures and hostile combustion environments necessitates development/application of advanced ceramic materials in these designs. This report characterizes the chemistry of coal-fired combustion environments over the wide temperature range that is of interest in these systems and discusses preliminary experimental results on several materials (alumina, Hexoloy, SiC/SiC, SiC/Si{sub 3}N{sub 4}/Si{sub 3}N{sub 4}, ZIRCONIA, INCONEL 677 and 617) with potential for application in these systems.

Natesan, K.; Yanez-Herrero, M.; Fornasieri, C.

1993-12-01T23:59:59.000Z

155

Energy Conservation Through Utility Systems Transient Response Analysis  

E-Print Network [OSTI]

was undertaken during a major expansion program at the Shell Oil Company Deer Park Manufacturing Complex in order to improve the overall operating stability. This paper describes the use of the computational model s for system design and the development...

Sorotzkin, J.

1981-01-01T23:59:59.000Z

156

Materials and Component Development for Advanced Turbine Systems  

SciTech Connect (OSTI)

In order to meet the 2010-2020 DOE Fossil Energy goals for Advanced Power Systems, future oxy-fuel and hydrogen-fired turbines will need to be operated at higher temperatures for extended periods of time, in environments that contain substantially higher moisture concentrations in comparison to current commercial natural gas-fired turbines. Development of modified or advanced material systems, combined with aerothermal concepts are currently being addressed in order to achieve successful operation of these land-based engines. To support the advanced turbine technology development, the National Energy Technology Laboratory (NETL) has initiated a research program effort in collaboration with the University of Pittsburgh (UPitt), and West Virginia University (WVU), working in conjunction with commercial material and coating suppliers as Howmet International and Coatings for Industry (CFI), and test facilities as Westinghouse Plasma Corporation (WPC) and Praxair, to develop advanced material and aerothermal technologies for use in future oxy-fuel and hydrogen-fired turbine applications. Our program efforts and recent results are presented.

Alvin, M.A.; Pettit, F.; Meier, G.; Yanar, N.; Chyu, M.; Mazzotta, D.; Slaughter, W.; Karaivanov, V.; Kang, B.; Feng, C.; Chen, R.; Fu, T-C.

2008-10-01T23:59:59.000Z

157

Cooperative Research and Development for Advanced Microturbines Program on Advanced Integrated Microturbine System  

SciTech Connect (OSTI)

The Advanced Integrated Microturbine Systems (AIMS) project was kicked off in October of 2000 to develop the next generation microturbine system. The overall objective of the project was to develop a design for a 40% electrical efficiency microturbine system and demonstrate many of the enabling technologies. The project was initiated as a collaborative effort between several units of GE, Elliott Energy Systems, Turbo Genset, Oak Ridge National Lab and Kyocera. Since the inception of the project the partners have changed but the overall direction of the project has stayed consistent. The project began as a systems study to identify design options to achieve the ultimate goal of 40% electrical efficiency. Once the optimized analytical design was identified for the 40% system, it was determined that a 35% efficient machine would be capable of demonstrating many of the advanced technologies within the given budget and timeframe. The items that would not be experimentally demonstrated were fully produced ceramic parts. However, to understand the requirements of these ceramics, an effort was included in the project to experimentally evaluate candidate materials in representative conditions. The results from this effort would clearly identify the challenges and improvement required of these materials for the full design. Following the analytical effort, the project was dedicated to component development and testing. Each component and subsystem was designed with the overall system requirements in mind and each tested to the fullest extent possible prior to being integrated together. This method of component development and evaluation helps to minimize the technical risk of the project. Once all of the components were completed, they were assembled into the full system and experimentally evaluated.

Michael J. Bowman

2007-05-30T23:59:59.000Z

158

Advanced Mud System for Microhole Coiled Tubing Drilling  

SciTech Connect (OSTI)

An advanced mud system was designed and key components were built that augment a coiled tubing drilling (CTD) rig that is designed specifically to drill microholes (less than 4-inch diameter) with advanced drilling techniques. The mud system was tailored to the hydraulics of the hole geometries and rig characteristics required for microholes and is capable of mixing and circulating mud and removing solids while being self contained and having zero discharge capability. Key components of this system are two modified triplex mud pumps (High Pressure Slurry Pumps) for advanced Abrasive Slurry Jetting (ASJ) and a modified Gas-Liquid-Solid (GLS) Separator for well control, flow return and initial processing. The system developed also includes an additional component of an advanced version of ASJ which allows cutting through most all materials encountered in oil and gas wells including steel, cement, and all rock types. It includes new fluids and new ASJ nozzles. The jetting mechanism does not require rotation of the bottom hole assembly or drill string, which is essential for use with Coiled Tubing (CT). It also has low reactive forces acting on the CT and generates cuttings small enough to be easily cleaned from the well bore, which is important in horizontal drilling. These cutting and mud processing components and capabilities compliment the concepts put forth by DOE for microhole coiled tubing drilling (MHTCTD) and should help insure the reality of drilling small diameter holes quickly and inexpensively with a minimal environmental footprint and that is efficient, compact and portable. Other components (site liners, sump and transfer pumps, stacked shakers, filter membranes, etc.. ) of the overall mud system were identified as readily available in industry and will not be purchased until we are ready to drill a specific well.

Kenneth Oglesby

2008-12-01T23:59:59.000Z

159

2003-01-2546 Simulating Advanced Life Support Systems for Integrated  

E-Print Network [OSTI]

, the simulation is a replacement for the Advanced Life Support (ALS) hardware and crew, allowing for testing2003-01-2546 Simulating Advanced Life Support Systems for Integrated Controls Research David of an integrated advanced life support system. It contains models of the major components of an Advanced Life

Kortenkamp, David

160

Anheuser-Busch: A System-Wide Resource Conservation Program  

E-Print Network [OSTI]

Wh St. Louis 26,000 115.193,000 (52% of total electricity) Jacksonville 8,650 61,789,000 (55% of total electricity) Newark 13,000 96,847,000 (75% of total electricity) Bio-Energy Recoverv System (BERS) technology was piloted by Anheuser...

Share, H. M.; Martin, K.

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Lawrence Livermore to build advanced laser system in Czech Republic  

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

9-06 9-06 For immediate release: 09/17/2013 | NR-13-09-06 High Resolution Image The High Repetition-Rate Advanced Petawatt Laser System, or HAPLS, will be designed, developed, assembled and tested at Lawrence Livermore. It will be transferred to the ELI Beamlines facility in 2016, where it will be commissioned for use by the international scientific community. Lawrence Livermore to build advanced laser system in Czech Republic Breanna Bishop, LLNL, (925) 423-9802, bishop33@llnl.gov High Resolution Image Artist renderings of the ELI Beamlines facility, currently under construction in the Czech Republic. High Resolution Image A CAD image of the ELI-HAPLS laser. LIVERMORE, Calif. - Lawrence Livermore National Laboratory (LLNL), through Lawrence Livermore National Security LLC (LLNS), has been awarded more than

162

Hybrid approach to failure prediction for advanced computing systems |  

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

Hybrid approach to failure prediction for advanced computing systems Hybrid approach to failure prediction for advanced computing systems January 8, 2014 Tweet EmailPrint "Fault tolerance is no longer an option but a necessity," states Franck Cappello, project manager of research on resilience at the extreme scale at Argonne National Laboratory. "And the ability to reliably predict failures can significantly reduce the overhead of fault-tolerance strategies and the recovery cost." In a special issue article in the International Journal of High Performance Computing Applications, Cappello and his colleagues at Argonne and the University of Illinois at Urbana-Champaign (UIUC) discuss issues in failure prediction and present a new hybrid approach to overcome the limitations of current models. One popular way of building prediction models is to analyze log files,

163

REQUEST BY MERIDIAN AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF  

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

Statement of Considerations Statement of Considerations REQUEST BY MERIDIAN AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER A SUBTIER CONTRACT UNDER UT-BATTELLE, LLC SUBCONTRACT NO. 4000010928, UNDER DOE PRIME CONTRACT DE-AC05- 00OR22725; DOE WAIVER DOCKET W(A)-2003-037; [ORO-780] Meridian Automotive Systems, Inc. (Meridian) has made a request for an advance waiver to worldwide rights in Subject Inventions made in the course of or under a subtier contract under UT-Battelle, LLC Subcontract No. 4000010928 with Volvo Trucks North America under Department of Energy (DOE) Contract DE-AC05-00OR22725. The scope of work of this project is for the utilization of Carbon Fiber Sheet Molding Compound (SMC) Materials for

164

Advanced Boost System Developing for High EGR Applications  

SciTech Connect (OSTI)

To support industry efforts of clean and efficient internal combustion engine development for passenger and commercial applications This program focuses on turbocharger improvement for medium and light duty diesel applications, from complete system optimization percepective to enable commercialization of advanced diesel combustion technologies, such as HCCI/LTC. Improve combined turbocharger efficiency up to 10% or fuel economy by 3% on FTP cycle at Tier II Bin 5 emission level.

Sun, Harold

2012-09-30T23:59:59.000Z

165

On the conservation of fundamental optical quantities in non-paraxial imaging systems  

E-Print Network [OSTI]

in applications such as optical traps, frequency conversion, high-resolution microscopy and optical data storage system, it is shown that the response in the image space can be expressed in terms of a limited set of the non-paraxial Gauss­Laguerre eigenmodes. Conservation of energy, linear momentum and angular momentum

166

Process Systems Engineering R&D for Advanced Fossil Energy Systems  

SciTech Connect (OSTI)

This presentation will examine process systems engineering R&D needs for application to advanced fossil energy (FE) systems and highlight ongoing research activities at the National Energy Technology Laboratory (NETL) under the auspices of a recently launched Collaboratory for Process & Dynamic Systems Research. The three current technology focus areas include: 1) High-fidelity systems with NETL's award-winning Advanced Process Engineering Co-Simulator (APECS) technology for integrating process simulation with computational fluid dynamics (CFD) and virtual engineering concepts, 2) Dynamic systems with R&D on plant-wide IGCC dynamic simulation, control, and real-time training applications, and 3) Systems optimization including large-scale process optimization, stochastic simulation for risk/uncertainty analysis, and cost estimation. Continued R&D aimed at these and other key process systems engineering models, methods, and tools will accelerate the development of advanced gasification-based FE systems and produce increasingly valuable outcomes for DOE and the Nation.

Zitney, S.E.

2007-09-11T23:59:59.000Z

167

Advanced Resin Cleaning System (ARCS) at Grand Gulf Nuclear Station  

SciTech Connect (OSTI)

Steam generation system in-core components can undergo serious material degradation by a variety of corrosion-related phenomena. These phenomena are largely controlled by boiler water (i.e. reactor water) chemistry which is strongly impacted by the performance of the condensate system mixed bed ion exchange units. In Boiling Water Reactors (BWR), the mixed bed ion exchange units not only provide protection from ionic contaminants, but also remove insoluble corrosion products by filtration/adsorption. These insoluble corrosion products removed by the ion exchange units must then be periodically cleaned from the resin bed by some process external to the BWR primary water loop. A unique resin cleaning process called the {open_quotes}Advanced Resin Cleaning System{close_quotes} (ARCS) was developed in the late 1980`s by members of CENTEC-XXI, located in Santa Clara, CA. This system, which has been successfully operated for several years at a Pressurized Water Reactor is highly efficient for removal of both insoluble corrosion products and anion/cation resin fines, and generates significantly less waste water than other cleaning methods. The ARCS was considered the most attractive method for meeting the demanding and costly resin cleaning needs of a BWR. A {open_quotes}Tailored Collaboration{close_quotes} project was initiated between EPRI, Entergy Operations (Grand Gulf Station), and CENTEC-XXI to demonstrate the {open_quotes}Advanced Resin Cleaning System{close_quotes} in a BWR.

Asay, R.H.; Earls, J.E.; Naughton, M.D. [Centec 21, Inc., Santa Clara, CA (United States)

1996-10-01T23:59:59.000Z

168

Conventional and advanced exergoeconomic analyses of geothermal district heating systems  

Science Journals Connector (OSTI)

Abstract The present study deals with analyzing, assessing and comparing conventional and advanced exergoeconomic analyses to identify the direction and potential for energy savings of a geothermal district heating system in future conditions/projections. As a real case study, the Afyon geothermal district heating system in Afyonkarahisar, Turkey, is considered while its actual operational thermal data on 8 February 2011 are utilized in the analysis, which is based on the specific exergy costing method. In this study for the first time, based on the concepts of avoidable/unavoidable and endogenous/exogenous parts, cost rates associated with both exergy destruction and capital investment of the geothermal district heating system are determined first, and the obtained results are then evaluated. The results indicate that the internal design changes play a more essential role in determining the cost of each component. The cost rate of unavoidable part within the components of the system is lower than that of the avoidable one. For the overall system, the value for the conventional exergoeconomic factor is determined to be 5.53% while that for the modified one is calculated to be 9.49%. As a result, the advanced exergoeconomic analysis makes more sense given the additional information in splitting process of the components.

Ali Keeba?; Arif Hepbasli

2014-01-01T23:59:59.000Z

169

Advanced Commercial Buildings Research; Electricity, Resources, & Building Systems Integration (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet describing the Advanced Commercial Buildings Research group within NREL's Electricity, Resources, and Buildings Systems Integration Center.

Not Available

2009-09-01T23:59:59.000Z

170

UTILITY ADVANCED TURBINE SYSTEMS(ATS) TECHNOLOGY READINESS TESTING  

SciTech Connect (OSTI)

The following paper provides an overview of GE's H System{trademark} technology, and specifically, the design, development, and test activities associated with the DOE Advanced Turbine Systems (ATS) program. There was intensive effort expended in bringing this revolutionary advanced technology program to commercial reality. In addition to describing the magnitude of performance improvement possible through use of H System{trademark} technology, this paper discusses the technological milestones during the development of the first 9H (50Hz) and 7H (60 Hz) gas turbines. To illustrate the methodical product development strategy used by GE, this paper discusses several technologies that were essential to the introduction of the H System{trademark}. Also included are analyses of the series of comprehensive tests of materials, components and subsystems that necessarily preceded full scale field testing of the H System{trademark}. This paper validates one of the basic premises with which GE started the H System{trademark} development program: exhaustive and elaborate testing programs minimized risk at every step of this process, and increase the probability of success when the H System{trademark} is introduced into commercial service. In 1995, GE, the world leader in gas turbine technology for over half a century, in conjunction with the DOE National Energy Technology Laboratory's ATS program, introduced its new generation of gas turbines. This H System{trademark} technology is the first gas turbine ever to achieve the milestone of 60% fuel efficiency. Because fuel represents the largest individual expense of running a power plant, an efficiency increase of even a single percentage point can substantially reduce operating costs over the life of a typical gas-fired, combined-cycle plant in the 400 to 500 megawatt range. The H System{trademark} is not simply a state-of-the-art gas turbine. It is an advanced, integrated, combined-cycle system in which every component is optimized for the highest level of performance. The unique feature of an H-technology combined-cycle system is the integrated heat transfer system, which combines both the steam plant reheat process and gas turbine bucket and nozzle cooling. This feature allows the power generator to operate at a higher firing temperature than current technology units, thereby resulting in dramatic improvements in fuel-efficiency. The end result is the generation of electricity at the lowest, most competitive price possible. Also, despite the higher firing temperature of the H System{trademark}, the combustion temperature is kept at levels that minimize emission production. GE has more than 3.6 million fired hours of experience in operating advanced technology gas turbines, more than three times the fired hours of competitors' units combined. The H System{trademark} design incorporates lessons learned from this experience with knowledge gleaned from operating GE aircraft engines. In addition, the 9H gas turbine is the first ever designed using ''Design for Six Sigma'' methodology, which maximizes reliability and availability throughout the entire design process. Both the 7H and 9H gas turbines will achieve the reliability levels of our F-class technology machines. GE has tested its H System{trademark} gas turbine more thoroughly than any previously introduced into commercial service. The H System{trademark} gas turbine has undergone extensive design validation and component testing. Full-speed, no-load testing of the 9H was achieved in May 1998 and pre-shipment testing was completed in November 1999. The 9H will also undergo approximately a half-year of extensive demonstration and characterization testing at the launch site. Testing of the 7H began in December 1999, and full speed, no-load testing was completed in February 2000. The 7H gas turbine will also be subjected to extensive demonstration and characterization testing at the launch site.

Kenneth A. Yackly

2001-06-01T23:59:59.000Z

171

Advanced energy system program. Final report, June 1986-April 1990  

SciTech Connect (OSTI)

The objectives of this program are to design, develop and demonstrate a natural-gas-fueled, highly recuperated, 50 kW Brayton-cycle cogeneration system for commercial, institutional, and multifamily residential applications. Marketing studies have shown that this Advanced Energy System (AES), with its many unique and cost-effective features, has the potential to offer significant reductions in annual electrical and thermal energy costs to the consumer. Specific advantages of the system that result in low cost of ownership are high electrical efficiency (30%, HHV), low maintenance, high reliability and long life (20 years). Significant technical features include: (1) an integral turbogenerator with shaft-speed permanent magnet generator; (2) a rotating assembly supported by compliant foil air bearings; (3) a formed-tubesheet plate/fin recuperator with 91% effectiveness; and (4) a bi-directional power conditioner to utilize the generator for system startup. The planned introduction of catalytic combustion will further enhance the economic and ecological attractiveness.

Trester, K.

1990-12-01T23:59:59.000Z

172

Advanced Materials for Mercury 50 Gas Turbine Combustion System  

SciTech Connect (OSTI)

Solar Turbines Incorporated (Solar), under cooperative agreement number DE-FC26-0CH11049, has conducted development activities to improve the durability of the Mercury 50 combustion system to 30,000 hours life and reduced life cycle costs. This project is part of Advanced Materials in the Advanced Industrial Gas Turbines program in DOE's Office of Distributed Energy. The targeted development engine was the Mercury{trademark} 50 gas turbine, which was developed by Solar under the DOE Advanced Turbine Systems program (DOE contract number DE-FC21-95MC31173). As a generator set, the Mercury 50 is used for distributed power and combined heat and power generation and is designed to achieve 38.5% electrical efficiency, reduced cost of electricity, and single digit emissions. The original program goal was 20,000 hours life, however, this goal was increased to be consistent with Solar's standard 30,000 hour time before overhaul for production engines. Through changes to the combustor design to incorporate effusion cooling in the Generation 3 Mercury 50 engine, which resulted in a drop in the combustor wall temperature, the current standard thermal barrier coated liner was predicted to have 18,000 hours life. With the addition of the advanced materials technology being evaluated under this program, the combustor life is predicted to be over 30,000 hours. The ultimate goal of the program was to demonstrate a fully integrated Mercury 50 combustion system, modified with advanced materials technologies, at a host site for a minimum of 4,000 hours. Solar was the Prime Contractor on the program team, which includes participation of other gas turbine manufacturers, various advanced material and coating suppliers, nationally recognized test laboratories, and multiple industrial end-user field demonstration sites. The program focused on a dual path development route to define an optimum mix of technologies for the Mercury 50 and future gas turbine products. For liner and injector development, multiple concepts including high thermal resistance thermal barrier coatings (TBC), oxide dispersion strengthened (ODS) alloys, continuous fiber ceramic composites (CFCC), and monolithic ceramics were evaluated before down-selection to the most promising candidate materials for field evaluation. Preliminary, component and sub-scale testing was conducted to determine material properties and demonstrate proof-of-concept. Full-scale rig and engine testing was used to validated engine performance prior to field evaluation at a Qualcomm Inc. cogeneration site located in San Diego, California. To ensure that the CFCC liners with the EBC proposed under this program would meet the target life, field evaluations of ceramic matrix composite liners in Centaur{reg_sign} 50 gas turbine engines, which had previously been conducted under the DOE sponsored Ceramic Stationary Gas Turbine program (DE-AC02-92CE40960), was continued under this program at commercial end-user sites under Program Subtask 1A - Extended CFCC Materials Durability Testing. The goal of these field demonstrations was to demonstrate significant component life, with milestones of 20,000 and 30,000 hours. Solar personnel monitor the condition of the liners at the field demonstration sites through periodic borescope inspections and emissions measurements. This program was highly successful at evaluating advanced materials and down-selecting promising solutions for use in gas turbine combustions systems. The addition of the advanced materials technology has enabled the predicted life of the Mercury 50 combustion system to reach 30,000 hours, which is Solar's typical time before overhaul for production engines. In particular, a 40 mil thick advanced Thermal Barrier Coating (TBC) system was selected over various other TBC systems, ODS liners and CFCC liners for the 4,000-hour field evaluation under the program. This advanced TBC is now production bill-of-material at various thicknesses up to 40 mils for all of Solar's advanced backside-cooled combustor liners (Centaur 50, Taurus 60, Mars 100, Taurus 70,

Price, Jeffrey

2008-09-30T23:59:59.000Z

173

Advanced coal technologies in Czech heat and power systems  

SciTech Connect (OSTI)

Coal is the only domestic source of fossil fuel in the Czech Republic. The coal reserves are substantial and their share in total energy use is about 60%. Presently necessary steps in making coal utilisation more friendly towards the environment have been taken and fairly well established, and an interest to develop and build advanced coal units has been observed. One IGCC system has been put into operation, and circa 10 AFBC units are in operation or under construction. Preparatory steps have been taken in building an advanced combustion unit fuelled by pulverised coal and retrofit action is taking place in many heating plants. An actual experience has shown two basic problems: (1) Different characteristic of domestic lignite, especially high content of ash, cause problems applying well-tried foreign technologies and apparently a more focused attention shall have to be paid to the quality of coal combusted. (2) Low prices of lignite (regarding energy, lignite is four times cheaper then coal) do not oblige to increase efficiency of the standing equipment applying advanced technologies. It will be of high interest to observe the effect of the effort of the European Union to establish a kind of carbon tax. It could dramatically change the existing scene in clean coal power generation by the logical pressure to increase the efficiency of energy transformation. In like manner the gradual liberalisation of energy prices might have similar consequences and it is a warranted expectation that, up to now not the best, energy balance will improve in near future.

Noskievic, P.; Ochodek, T. [VSB-Technical Univ., Ostrava (Czechoslovakia)

1998-04-01T23:59:59.000Z

174

Advanced Initiation Systems Manufacturing Level 2 Milestone Completion Summary  

SciTech Connect (OSTI)

Milestone Description - Advanced Initiation Systems Detonator Design and Prototype. Milestone Grading Criteria - Design new generation chip slapper detonator and manufacture a prototype using advanced manufacturing processes, such as all-dry chip metallization and solvent-less flyer coatings. The advanced processes have been developed for manufacturing detonators with high material compatibility and reliability to support future LEPs, e.g. the B61, and new weapons systems. Perform velocimetry measurements to determine slapper velocity as a function of flight distance. A prototype detonator assembly and stripline was designed for low-energy chip slappers. Pictures of the prototype detonator and stripline are shown. All-dry manufacturing processes were used to address compatibility issues. KCP metallized the chips in a physical vapor deposition system through precision-aligned shadow masks. LLNL deposited a solvent-less polyimide flyer with a processes called SLIP, which stands for solvent-less vapor deposition followed by in-situ polymerization. LANL manufactured the high-surface-area (HSA) high explosive (HE) pellets. Test fires of two chip slapper designs, radius and bowtie, were performed at LLNL in the High Explosives Application Facility (HEAF). Test fires with HE were conducted to establish the threshold firing voltages. pictures of the chip slappers before and after test fires are shown. Velocimetry tests were then performed to obtain slapper velocities at or above the threshold firing voltages. Figure 5 shows the slapper velocity as a function of distance and time at the threshold voltage, for both radius and bowtie bridge designs. Both designs were successful at initiating the HE at low energy levels. Summary of Accomplishments are: (1) All-dry process for chip manufacture developed; (2) Solventless process for slapper materials developed; (3) High-surface area explosive pellets developed; (4) High performance chip slappers developed; (5) Low-energy chip slapper detonator designs; and (6) Low-voltage threshold chip slapper detonator demonstrated.

Chow, R; Schmidt, M

2009-10-01T23:59:59.000Z

175

Development of a system model for advanced small modular reactors.  

SciTech Connect (OSTI)

This report describes a system model that can be used to analyze three advance small modular reactor (SMR) designs through their lifetime. Neutronics of these reactor designs were evaluated using Monte Carlo N-Particle eXtended (MCNPX/6). The system models were developed in Matlab and Simulink. A major thrust of this research was the initial scoping analysis of Sandia's concept of a long-life fast reactor (LLFR). The inherent characteristic of this conceptual design is to minimize the change in reactivity over the lifetime of the reactor. This allows the reactor to operate substantially longer at full power than traditional light water reactors (LWRs) or other SMR designs (e.g. high temperature gas reactor (HTGR)). The system model has subroutines for lifetime reactor feedback and operation calculations, thermal hydraulic effects, load demand changes and a simplified SCO2 Brayton cycle for power conversion.

Lewis, Tom Goslee,; Holschuh, Thomas Vernon,

2014-01-01T23:59:59.000Z

176

Utility advanced turbine systems (ATS) technology readiness testing  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of a highly efficient, environmentally superior, and cost-competitive utility ATS for base-load utility-scale power generation, the GE 7H (60 Hz) combined cycle power system, and related 9H (50 Hz) common technology. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown.

NONE

2000-09-15T23:59:59.000Z

177

Utility Advanced Turbine Systems (ATS) technology readiness testing  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted horn DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include fill speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown.

NONE

1999-05-01T23:59:59.000Z

178

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between Ge and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially be GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown. This report summarizes work accomplished from 4Q97 through 3Q98.

Unknown

1998-10-01T23:59:59.000Z

179

Utility Advanced Turbine Systems (ATS) Technology Readiness Testing  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown in Figure 1-1. This report summarizes work accomplished in 2Q98. The most significant accomplishments are listed in the report.

NONE

1998-10-29T23:59:59.000Z

180

Materials/manufacturing element of the Advanced Turbine System Program  

SciTech Connect (OSTI)

One of the supporting elements of the Advanced Turbine Systems (ATS) Program is the materials/manufacturing technologies task. The objective of this element is to address critical materials issues for both industrial and utility gas turbines. DOE Oak Ridge Operations Office (ORO) will manage this element of the program, and a team from DOE-ORO and Oak Ridge National Laboratory is coordinating the planning for the materials/manufacturing effort. This paper describes that planning activity which is in the early stages.

Karnitz, M.A.; Devan, J.H.; Holcomb, R.S.; Ferber, M.K.; Harrison, R.W.

1994-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Customer system efficiency improvement assessment: Supply curves for transmission and distribution conservation options  

SciTech Connect (OSTI)

This report documents the results of Task 6 in the Customer System Efficiency Improvement (CSEI) Assessment Project. A principal objective of this project is to assess the potential for energy conservation in the transmission and distribution (TandD) systems of electric utilities in the BPA service area. The scope of this assessment covers BPA customers in the Pacific Northwest region and all non-federal TandD systems, including those that currently place no load on the BPA system. Supply curves were developed to describe the conservation resource potentially available from TandD-system efficiency improvements. These supply curves relate the levelized cost of upgrading existing equipment to the estimated amount of energy saved. Stated in this form, the resource represented by TandD loss reductions can be compared with other conservation options and regional electrical generation resources to determine the most cost-effective method of supplying power to the Pacific Northwest. The development of the supply curves required data acquisition and methodology development that are also described in this report. 11 refs., 11 figs., 16 tabs.

Tepel, R.C.; Callaway, J.W.; De Steese, J.G.

1987-11-01T23:59:59.000Z

182

E-Print Network 3.0 - advanced vehicle control systems Sample...  

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

a resolution of major vehicle components for advanced class vehicles and systems. The Cost Model ASCM estimates... Automotive System Cost Modeling Tool (ASCM) T he affordability...

183

New conservation laws of some third-order systems of pdes arising from higher-order multipliers  

Science Journals Connector (OSTI)

In this paper, we study conservation laws for some third-order systems of pdes, viz., some versions of the Boussinesq equations and the BBM equation. It is shown that new and interesting conserved quantities arise from multipliers that are of order greater than one in derivatives of the dependent variables. Furthermore, the invariance properties of the conserved flows with respect to the Lie point symmetry generators are investigated via the symmetry action on the multipliers.

R. Morris; A.H. Kara

2010-01-01T23:59:59.000Z

184

Asola Advanced and Automotive Solar Systems GmbH | Open Energy Information  

Open Energy Info (EERE)

Asola Advanced and Automotive Solar Systems GmbH Asola Advanced and Automotive Solar Systems GmbH Jump to: navigation, search Name Asola Advanced and Automotive Solar Systems GmbH Place Erfurt, Germany Zip D-99428 Sector Solar Product German manufacturer of PV modules and spherical solar sun roofs for the automotive industry. References Asola Advanced and Automotive Solar Systems GmbH[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Asola Advanced and Automotive Solar Systems GmbH is a company located in Erfurt, Germany . References ↑ "Asola Advanced and Automotive Solar Systems GmbH" Retrieved from "http://en.openei.org/w/index.php?title=Asola_Advanced_and_Automotive_Solar_Systems_GmbH&oldid=34237

185

PDE Estimation Techniques for Advanced Battery Management Systems -Part I: SOC Estimation  

E-Print Network [OSTI]

- cles and renewable energy resources is battery energy storage. Advanced battery systems representPDE Estimation Techniques for Advanced Battery Management Systems - Part I: SOC Estimation S. J and renewable energy research, including advanced batteries, under the American Recovery and Rein- vestment Act

Krstic, Miroslav

186

PDE Estimation Techniques for Advanced Battery Management Systems -Part II: SOH Identification  

E-Print Network [OSTI]

vehi- cles and renewable energy resources is battery energy storage. Advanced battery systems representPDE Estimation Techniques for Advanced Battery Management Systems - Part II: SOH Identification S examines identification algorithms for state- of-health (SOH) related parameters in advanced batteries

Krstic, Miroslav

187

NETL: Gasification Systems - Advanced Acid Gas Separation Technology for  

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

Feed Systems Feed Systems Advanced Acid Gas Separation Technology for the Utilization of Low-Rank Coals Project Number: DE-FE0007759 Refinery offgas PSA at Air Products' facility in Baytown, TX Refinery offgas PSA at Air Products' facility in Baytown, TX. Air Products, in collaboration with the University of North Dakota Energy and Environmental Research Center (EERC), is testing its Sour Pressure Swing Adsorption (Sour PSA) process that separates syngas into an hydrogen-rich stream and second stream comprising of sulfur compounds(primarily hydrogen sulfide)carbon dioxide (CO2), and other impurities. The adsorbent technology testing that has been performed to date utilized syngas streams derived from higher rank coals and petcoke. Using data from experiments based on petcoke-derived syngas, replacing the

188

Proceedings of the Advanced Turbine Systems annual program review meeting  

SciTech Connect (OSTI)

Goals of the 8-year program are to develop cleaner, more efficient, and less expensive gas turbine systems for utility and industrial electric power generation, cogeneration, and mechanical drive units. During this Nov. 9-11, 1994, meeting, presentations on energy policy issues were delivered by representatives of regulatory, industry, and research institutions; program overviews and technical reviews were given by contractors; and ongoing and proposed future projects sponsored by university and industry were presented and displayed at the poster session. Panel discussions on distributed power and Advanced Gas Systems Research education provided a forum for interactive dialog and exchange of ideas. Exhibitors included US DOE, Solar Turbines, Westinghouse, Allison Engine Co., and GE.

NONE

1994-12-31T23:59:59.000Z

189

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer conflation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. The objective of this task is to design 7H and 9H compressor rotor and stator structures with the goal of achieving high efficiency at lower cost and greater durability by applying proven GE Power Systems (GEPS) heavy-duty use design practices. The designs will be based on the GE Aircraft Engines (GEAE) CF6-80C2 compressor. Transient and steady-state thermo-mechanical stress analyses will be run to ensure compliance with GEPS life standards. Drawings will be prepared for forgings, castings, machining, and instrumentation for full speed, no load (FSNL) tests of the first unit on both 9H and 7H applications.

Unknown

1999-04-01T23:59:59.000Z

190

Indicator system for advanced nuclear plant control complex  

DOE Patents [OSTI]

An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

1993-01-01T23:59:59.000Z

191

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of a highly efficient, environmentally superior, and cost-competitive utility ATS for base-load utility-scale power generation, the GE 7H (60 Hz) combined cycle power system, and related 9H (50 Hz) common technology. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown in Figure 1-1. Information specifically related to 9H production is presented for continuity in H program reporting, but lies outside the ATS program. This report summarizes work accomplished from 4Q98 through 3Q99. The most significant accomplishments are listed.

Unknown

1999-10-01T23:59:59.000Z

192

Advanced Fusion Reactors for Space Propulsion and Power Systems  

SciTech Connect (OSTI)

In recent years the methodology proposed for conversion of light elements into energy via fusion has made steady progress. Scientific studies and engineering efforts in advanced fusion systems designs have introduced some new concepts with unique aspects including consideration of Aneutronic fuels. The plant parameters for harnessing aneutronic fusion appear more exigent than those required for the conventional fusion fuel cycle. However aneutronic fusion propulsion plants for Space deployment will ultimately offer the possibility of enhanced performance from nuclear gain as compared to existing ionic engines as well as providing a clean solution to Planetary Protection considerations and requirements. Proton triggered 11Boron fuel (p- 11B) will produce abundant ion kinetic energy for In-Space vectored thrust. Thus energetic alpha particles' exhaust momentum can be used directly to produce high Isp thrust and also offer possibility of power conversion into electricity. p-11B is an advanced fusion plant fuel with well understood reaction kinematics but will require some new conceptual thinking as to the most effective implementation.

Chapman, John J.

2011-06-15T23:59:59.000Z

193

Human-System Safety Methods for Development of Advanced Air Traffic Management Systems  

SciTech Connect (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL) is supporting the National Aeronautics and Space Administration in the development of advanced air traffic management (ATM) systems as part of the Advanced Air Transportation Technologies program. As part of this program INEEL conducted a survey of human-system safety methods that have been applied to complex technical systems, to identify lessons learned from these applications and provide recommendations for the development of advanced ATM systems. The domains that were surveyed included offshore oil and gas, commercial nuclear power, commercial aviation, and military. The survey showed that widely different approaches are used in these industries, and that the methods used range from very high-level, qualitative approaches to very detailed quantitative methods such as human reliability analysis (HRA) and probabilistic safety assessment (PSA). In addition, the industries varied widely in how effectively they incorporate human-system safety assessment in the design, development, and testing of complex technical systems. In spite of the lack of uniformity in the approaches and methods used, it was found that methods are available that can be combined and adapted to support the development of advanced air traffic management systems.

Nelson, W.R.

1999-05-24T23:59:59.000Z

194

A review of ash in conventional and advanced coal-based power systems  

SciTech Connect (OSTI)

Process conditions are briefly described for conventional and advanced power systems. The advanced systems include both combustion and gasification processes. We discuss problems in coal-based power generation systems, including deposition, agglomeration and sintering of bed materials, and ash attack are discussed. We also discuss methods of mitigating ash problems and anticipated changes anticipated in ash use by converting from conventional to advanced systems.

Holcombe, N.T.

1995-12-31T23:59:59.000Z

195

An advanced geothermal drilling system: Component options and limitations  

SciTech Connect (OSTI)

The historical developments of drilling technology for geothermal resources have followed traditional incremental trends. The local expertise and rigs were adapted from existing drill rigs used for mining, civil, and water well projects. In areas with hydrocarbon resources, petroleum drilling hardware has been adapted; and in other countries, these units were imported as depth requirements increased and more robust derricks and downhole tools were needed. This ad hoc approach has provided adequate exploration and production wells. In contrast to the incremental improvements in petroleum rotary drilling system components this paper reviews a new, purpose-developed system that would solve the known major problems by design. Performance goals of 4 km (12,000 ft.) depth, 400 C, (750 F) and penetration rates greater than 8 m/h (25 ft/h) were selected. This advanced system was reviewed extensively and estimates of perhaps 30 to 60% cost savings were projected, depending on the assumed effectiveness and performance improvements provided. This paper continues the design and feasibility study and presents some of the component and sub-system details developed thus far.

Rowley, J. [Pajarito Enterprises, Los Alamos, NM (United States); Saito, Seiji [JMC Geothermal Division, Tokyo (Japan); Long, R.C. [Department of Energy, Las Vegas, NV (United States). Yucca Mountain Site Characterization Project

1995-12-31T23:59:59.000Z

196

Advanced tangential low NOx systems - development and results  

SciTech Connect (OSTI)

The development of low NO{sub x} combustion systems has identified the near burner flame conditions as critical in determining the eventual NO{sub x} emission levels. In this paper the development of this criterion, in respect of tangentially coal ({open_quote}T{close_quote}) fired power generation boilers, is discussed together with their commercial application. The potential ultra low NO{sub x} performance of these techniques requires a deeper understanding of coal characteristics in addition to the standard properties involving volatile release rates, the behaviour of particulate clouds and their burning velocities. Aerodynamic properties including fuel air mixing, velocity and particulate distribution are all of fundamental importance and can be studied by means of isothermal physical modelling and computational fluid dynamics (CFD). Amalgamation of these various aspects into burner and combustion system design can be considered as NO{sub x} control by flame management and can be applied to conventional systems as well as to the development of advanced low NO{sub x} burner technology. Low NO{sub x} equipment based on this technology is known as the EnviroNO{sub x}{trademark} system.

Allen, J.W.; Beal, P.R. [Rolls-Royce Industrial Power Group, Derby (United Kingdom)

1996-01-01T23:59:59.000Z

197

Hydrodynamic Limit for an Hamiltonian System with Boundary Conditions and Conservative Noise  

E-Print Network [OSTI]

We study the hyperbolic scaling limit for a chain of N coupled anharmonic oscillators. The chain is attached to a point on the left and there is a force (tension) $\\tau$ acting on the right. In order to provide good ergodic properties to the system, we perturb the Hamiltonian dynamics with random local exchanges of velocities between the particles, so that momentum and energy are locally conserved. We prove that in the macroscopic limit the distributions of the elongation, momentum and energy, converge to the solution of the Euler system of equations, in the smooth regime.

Nadine Even; Stefano Olla

2013-10-25T23:59:59.000Z

198

An unconstrained Lagrangian formulation and conservation laws for the Schrdinger map system  

SciTech Connect (OSTI)

We consider energy-critical Schrdinger maps from R{sup 2} into S{sup 2} and H{sup 2}. Viewing such maps with respect to orthonormal frames on the pullback bundle provides a gauge field formulation of the evolution. We show that this gauge field system is the set of Euler-Lagrange equations corresponding to an action that includes a Chern-Simons term. We also introduce the stress-energy tensor and derive conservation laws. In conclusion we offer comparisons between Schrdinger maps and the closely related Chern-Simons-Schrdinger system.

Smith, Paul, E-mail: smith@math.berkeley.edu [Department of Mathematics, University of California, Berkeley, California 94720 (United States)] [Department of Mathematics, University of California, Berkeley, California 94720 (United States)

2014-05-15T23:59:59.000Z

199

An unconstrained Lagrangian formulation and conservation laws for the Schrdinger map system  

E-Print Network [OSTI]

We consider energy-critical Schr\\"odinger maps from R^2 into the sphere and hyperbolic plane. Viewing such maps with respect to orthonormal frames on the pullback bundle provides a gauge field formulation of the evolution. We show that this gauge field system is the set of Euler-Lagrange equations corresponding to an action that includes a Chern-Simons term. We also introduce the stress-energy tensor and derive conservation laws. In conclusion we offer comparisons between Schr\\"odinger maps and the closely related Chern-Simons-Schr\\"odinger system.

Paul Smith

2014-04-14T23:59:59.000Z

200

System definition and analysis gas-fired industrial advanced turbine systems  

SciTech Connect (OSTI)

The objective is to define and analyze an engine system based on the gas fuel Advanced Turbine from Task 3. Using the cycle results of Task 3, a technical effort was started for Task 6 which would establish the definition of the engine flowpath and the key engine component systems. The key engine systems are: gas turbine engine overall flowpath; booster (low pressure compressor); intercooler; high pressure compressor; combustor; high pressure turbine; low pressure turbine and materials; engine system packaging; and power plant configurations. The design objective is to use the GE90 engine as the platform for the GE Industrial Advanced Turbine System. This objective sets the bounds for the engine flowpath and component systems.

Holloway, G.M.

1997-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Experimental and CFD Analysis of Advanced Convective Cooling Systems  

SciTech Connect (OSTI)

The objective of this project is to study the fundamental physical phenomena in the reactor cavity cooling system (RCCS) of very high-temperature reactors (VHTRs). One of the primary design objectives is to assure that RCCS acts as an ultimate heat sink capable of maintaining thermal integrity of the fuel, vessel, and equipment within the reactor cavity for the entire spectrum of postulated accident scenarios. Since construction of full-scale experimental test facilities to study these phenomena is impractical, it is logical to expect that computational fluid dynamics (CFD) simulations will play a key role in the RCCS design process. An important question then arises: To what extent are conventional CFD codes able to accurately capture the most important flow phenomena, and how can they be modified to improve their quantitative predictions? Researchers are working to tackle this problem in two ways. First, in the experimental phase, the research team plans to design and construct an innovative platform that will provide a standard test setting for validating CFD codes proposed for the RCCS design. This capability will significantly advance the state of knowledge in both liquid-cooled and gas-cooled (e.g., sodium fast reactor) reactor technology. This work will also extend flow measurements to micro-scale levels not obtainable in large-scale test facilities, thereby revealing previously undetectable phenomena that will complement the existing infrastructure. Second, in the computational phase of this work, numerical simulation of the flow and temperature profiles will be performed using advanced turbulence models to simulate the complex conditions of flows in critical zones of the cavity. These models will be validated and verified so that they can be implemented into commercially available CFD codes. Ultimately, the results of these validation studies can then be used to enable a more accurate design and safety evaluation of systems in actual nuclear power applications (both during normal operation and accident scenarios).

Yassin A. Hassan; Victor M. Ugaz

2012-06-27T23:59:59.000Z

202

Advanced Techniques for Power System Identification from Measured Data  

SciTech Connect (OSTI)

Time-synchronized measurements provide rich information for estimating a power-system's electromechanical modal properties via advanced signal processing. This information is becoming critical for the improved operational reliability of interconnected grids. A given mode's properties are described by its frequency, damping, and shape. Modal frequencies and damping are useful indicators of power-system stress, usually declining with increased load or reduced grid capacity. Mode shape provides critical information for operational control actions. This project investigated many advanced techniques for power system identification from measured data focusing on mode frequency and damping ratio estimation. Investigators from the three universities coordinated their effort with Pacific Northwest National Laboratory (PNNL). Significant progress was made on developing appropriate techniques for system identification with confidence intervals and testing those techniques on field measured data and through simulation. Experimental data from the western area power system was provided by PNNL and Bonneville Power Administration (BPA) for both ambient conditions and for signal injection tests. Three large-scale tests were conducted for the western area in 2005 and 2006. Measured field PMU (Phasor Measurement Unit) data was provided to the three universities. A 19-machine simulation model was enhanced for testing the system identification algorithms. Extensive simulations were run with this model to test the performance of the algorithms. University of Wyoming researchers participated in four primary activities: (1) Block and adaptive processing techniques for mode estimation from ambient signals and probing signals, (2) confidence interval estimation, (3) probing signal design and injection method analysis, and (4) performance assessment and validation from simulated and field measured data. Subspace based methods have been use to improve previous results from block processing techniques. Bootstrap techniques have been developed to estimate confidence intervals for the electromechanical modes from field measured data. Results were obtained using injected signal data provided by BPA. A new probing signal was designed that puts more strength into the signal for a given maximum peak to peak swing. Further simulations were conducted on a model based on measured data and with the modifications of the 19-machine simulation model. Montana Tech researchers participated in two primary activities: (1) continued development of the 19-machine simulation test system to include a DC line; and (2) extensive simulation analysis of the various system identification algorithms and bootstrap techniques using the 19 machine model. Researchers at the University of Alaska-Fairbanks focused on the development and testing of adaptive filter algorithms for mode estimation using data generated from simulation models and on data provided in collaboration with BPA and PNNL. There efforts consist of pre-processing field data, testing and refining adaptive filter techniques (specifically the Least Mean Squares (LMS), the Adaptive Step-size LMS (ASLMS), and Error Tracking (ET) algorithms). They also improved convergence of the adaptive algorithms by using an initial estimate from block processing AR method to initialize the weight vector for LMS. Extensive testing was performed on simulated data from the 19 machine model. This project was also extensively involved in the WECC (Western Electricity Coordinating Council) system wide tests carried out in 2005 and 2006. These tests involved injecting known probing signals into the western power grid. One of the primary goals of these tests was the reliable estimation of electromechanical mode properties from measured PMU data. Applied to the system were three types of probing inputs: (1) activation of the Chief Joseph Dynamic Brake, (2) mid-level probing at the Pacific DC Intertie (PDCI), and (3) low-level probing on the PDCI. The Chief Joseph Dynamic Brake is a 1400 MW disturbance to the system and is injected for a ha

Pierre, John W.; Wies, Richard; Trudnowski, Daniel

2008-11-25T23:59:59.000Z

203

Integration of carbonate fuel cells with advanced coal gasification systems  

SciTech Connect (OSTI)

Carbonate fuel cells have attributes which make them ideally suited to operate on coal-derived fuel gas; they can convert the methane, hydrogen, and carbon monoxide present in coal derived fuel gas directly to electricity, are not subject to thermodynamic cycle limits as are heat engines, and operate at temperatures compatible with coal gasifiers. Some new opportunities for improved efficiency have been identified in integrated coal gasification/carbonate fuel cells which take advantage of low temperature catalytic coal gasification producing a methane-rich fuel gas, and the internal methane reforming capabilities of Energy Research Corporation`s carbonate fuel cells. By selecting the appropriate operating conditions and catalyst in the gasifier, methane formation is maximized to improve gasification efficiency and to take advantage of the heat management aspects of the internal reforming carbonate fuel cell. These advanced integrated gasification/carbonate fuel cell systems are projected to have better efficiencies than gasification/carbonate fuel cell systems employing conventional gasification, and also competing non-fuel cell systems. These improved efficiencies would be accompanied by a corresponding reduction in impact on the environment as well.

Steinfeld, G. [Energy Research Corp., Danbury, CT (United States); Meyers, S.J. [Fluor Daniel, Inc., Irvine, CA (United States); Hauserman, W.B. [North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center

1992-12-01T23:59:59.000Z

204

Integration of carbonate fuel cells with advanced coal gasification systems  

SciTech Connect (OSTI)

Carbonate fuel cells have attributes which make them ideally suited to operate on coal-derived fuel gas; they can convert the methane, hydrogen, and carbon monoxide present in coal derived fuel gas directly to electricity, are not subject to thermodynamic cycle limits as are heat engines, and operate at temperatures compatible with coal gasifiers. Some new opportunities for improved efficiency have been identified in integrated coal gasification/carbonate fuel cells which take advantage of low temperature catalytic coal gasification producing a methane-rich fuel gas, and the internal methane reforming capabilities of Energy Research Corporation's carbonate fuel cells. By selecting the appropriate operating conditions and catalyst in the gasifier, methane formation is maximized to improve gasification efficiency and to take advantage of the heat management aspects of the internal reforming carbonate fuel cell. These advanced integrated gasification/carbonate fuel cell systems are projected to have better efficiencies than gasification/carbonate fuel cell systems employing conventional gasification, and also competing non-fuel cell systems. These improved efficiencies would be accompanied by a corresponding reduction in impact on the environment as well.

Steinfeld, G. (Energy Research Corp., Danbury, CT (United States)); Meyers, S.J. (Fluor Daniel, Inc., Irvine, CA (United States)); Hauserman, W.B. (North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center)

1992-01-01T23:59:59.000Z

205

Overall requirements for an advanced underground coal extraction system  

SciTech Connect (OSTI)

This report presents overall requirements on underground mining systems suitable for coal seams exploitable in the year 2000, with particular relevance to the resources of Central Appalachia. These requirements may be summarized as follows: (1) Production Cost: demonstrate a return on incremental investment of 1.5 to 2.5 times the value required by a low-risk capital project. (2) Miner Safety: achieve at least a 50% reduction in deaths and disabling injuries per million man-hours. (3) Miner Health: meet the intent of all applicable regulations, with particular attention to coal dust, carcinogens, and mutagens; and with continued emphasis on acceptable levels of noise and vibration, lighting, humidity and temperature, and adequate work space. (4) Environmental Impact: maintain the value of mined and adjacent lands at the pre-mining value following reclamation; mitigation of off-site impacts should not cost more than the procedures used in contemporary mining. (5) Coal Conservation: the recovery of coal from the seam being mined should be at least as good as the best available contemporary technology operating in comparable conditions. No significant trade-offs between production cost and other performance indices were found.

Goldsmith, M.; Lavin, M.L.

1980-10-15T23:59:59.000Z

206

Industrial advanced turbine systems: Development and demonstration. Annual report, October 1, 1996--September 30, 1997  

SciTech Connect (OSTI)

The US DOE has initiated a program for advanced turbine systems (ATS) that will serve industrial power generation markets. The ATS will provide ultra-high efficiency, environmental superiority, and cost competitiveness. The ATS will foster (1) early market penetration that enhances the global competitiveness of US industry, (2) public health benefits resulting from reduced exhaust gas emissions of target pollutants, (3) reduced cost of power used in the energy-intensive industrial marketplace and (4) the retention and expansion of the skilled US technology base required for the design, development and maintenance of state-of-the-art advanced turbine products. The Industrial ATS Development and Demonstration program is a multi-phased effort. Solar Turbines Incorporated (Solar) has participated in Phases 1 and 2 of the program. On September 14, 1995 Solar was awarded a Cooperative Agreement for Phases 3 and 4 of the program. Phase 3 of the work is separated into two subphases: Phase 3A entails Component Design and Development Phase 3B will involve Integrated Subsystem Testing. Phase 4 will cover Host Site Testing. Forecasts call for completion of the program within budget as originally estimated. Scheduled completion is forecasted to be approximately 3 years late to original plan. This delay has been intentionally planned in order to better match program tasks to the anticipated availability of DOE funds. To ensure the timely realization of DOE/Solar program goals, the development schedule for the smaller system (Mercury 50) and enabling technologies has been maintained, and commissioning of the field test unit is scheduled for May of 2000. As of the end of the reporting period work on the program is 22.80% complete based upon milestones completed. This measurement is considered quite conservative as numerous drawings on the Mercury 50 are near release. Variance information is provided in Section 4.0-Program Management.

NONE

1997-12-31T23:59:59.000Z

207

A Virtual Engineering Framework for Simulating Advanced Power System  

SciTech Connect (OSTI)

In this report is described the work effort performed to provide NETL with VE-Suite based Virtual Engineering software and enhanced equipment models to support NETL's Advanced Process Engineering Co-simulation (APECS) framework for advanced power generation systems. Enhancements to the software framework facilitated an important link between APECS and the virtual engineering capabilities provided by VE-Suite (e.g., equipment and process visualization, information assimilation). Model enhancements focused on improving predictions for the performance of entrained flow coal gasifiers and important auxiliary equipment (e.g., Air Separation Units) used in coal gasification systems. In addition, a Reduced Order Model generation tool and software to provide a coupling between APECS/AspenPlus and the GE GateCycle simulation system were developed. CAPE-Open model interfaces were employed where needed. The improved simulation capability is demonstrated on selected test problems. As part of the project an Advisory Panel was formed to provide guidance on the issues on which to focus the work effort. The Advisory Panel included experts from industry and academics in gasification, CO2 capture issues, process simulation and representatives from technology developers and the electric utility industry. To optimize the benefit to NETL, REI coordinated its efforts with NETL and NETL funded projects at Iowa State University, Carnegie Mellon University and ANSYS/Fluent, Inc. The improved simulation capabilities incorporated into APECS will enable researchers and engineers to better understand the interactions of different equipment components, identify weaknesses and processes needing improvement and thereby allow more efficient, less expensive plants to be developed and brought on-line faster and in a more cost-effective manner. These enhancements to APECS represent an important step toward having a fully integrated environment for performing plant simulation and engineering. Furthermore, with little effort the modeling capabilities described in this report can be extended to support other DOE programs, such as ultra super critical boiler development, oxy-combustion boiler development or modifications to existing plants to include CO2 capture and sequestration.

Mike Bockelie; Dave Swensen; Martin Denison; Stanislav Borodai

2008-06-18T23:59:59.000Z

208

Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award...  

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

National Laboratory, the Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants...

209

Advanced, Energy-Efficient Hybrid Membrane System for Industrial Water Reuse  

Broader source: Energy.gov [DOE]

Demonstrate an advanced water treatment and reuse process in a single hybrid system that combines forward osmosis with membrane distillation to achieve greater efficiency and increased water reuse.

210

E-Print Network 3.0 - advanced code system Sample Search Results  

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

object code 4050. In the Description' field of the IB, the initiator is required to enter "Advance... the unique Document Number ("Doc Nbr") of the IB (financial system...

211

Systems and Controls Analysis and Testing; Harvesting More Wind Energy with Advanced Controls Technology (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet outlines the systems and controls analysis and testing that takes place at the NWTC on the Controls Advanced Research Turbines.

Not Available

2010-01-01T23:59:59.000Z

212

E-Print Network 3.0 - advanced weigh-in-motion system Sample...  

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

and advanced trailer suspension systems ... Source: Oak Ridge National Laboratory Fossil Energy Program Collection: Fossil Fuels 3 Detecting Semantic Anomalies in Truck...

213

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems  

Broader source: Energy.gov [DOE]

Development of Advanced Thermal-Hydrological-Mechanical-Chemical (THMC) Modeling Capabilities for Enhanced Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

214

Advanced Heat/Mass Exchanger Technology for Geothermal and solar Renewable Energy Systems  

Broader source: Energy.gov [DOE]

Advanced Heat/Mass Exchanger Technology for Geothermal and solar Renewable Energy Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

215

Advanced Microturbine System: Market Assessment, May 2003 | Department...  

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

for Advanced Thermally Activated BCHP in Five National Account Sectors, May 2003 CHP Assessment, California Energy Commission, October 2009 Cooling, Heating, and Power for...

216

Advanced boost system development for diesel HCCI/LTC applications...  

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

"Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08sun.pdf More Documents & Publications Numerical Investigation of Advanced Compressor...

217

Techniques for energy conservation in ac motor-driven systems. Final report  

SciTech Connect (OSTI)

Techniques for energy conservation of reducing losses in ac motor-driven systems proposed by the technical community in response to surging cost of energy are evaluated and compared. Report objectives are to provide better understanding of underlying principles and to evaluate technical and economic viability of these techniques for various applications. An important aspect considered is the impact on electric utility system in terms of harmonics, power factor of operation, and Electro-Magnetic Interference (EMI). The techniques evaluated are: NASA Power Factor Controller, a simple device for reducing power losses in lightly loaded ac motors; wanlass motor modification, a scheme of reconnecting motor windings with capacitors in series, with the intention of improving the motor efficiencies under all loading conditions; conventional variable frequency solid-state inverters which can control the speed of ac motors by producing adjustable frequency ac voltage, with a significant potential for energy conservation in pumps and air-handling systems; and other variable frequency drives and schemes including cycloconverters, slip-recovery scheme, Exxon Alternating Current Synthesizer, Venturini conversion technique, permanent magnet synchronous motors, and a device called the Phase-Liner. The impact of rapid growth in semiconductors and magnetic materials technologies is also considered.

Mohan, N.

1981-09-01T23:59:59.000Z

218

Overview of diagnostic system in the experimental advanced superconducting tokamak  

Science Journals Connector (OSTI)

The first plasma was achieved in the experimental advanced superconducting tokamak (EAST) on September 26, 2006....H ? radiation array, 20 triple probes for diverter plasma, a one-channel visible ...

X. Gao

2008-03-01T23:59:59.000Z

219

Vehicle Technologies Office: Advanced Battery Development, System Analysis, and Testing  

Broader source: Energy.gov [DOE]

To develop better lithium-ion (Li-ion) batteries for plug-in electric vehicles, researchers must integrate the advances made in exploratory battery materials and applied battery research into full...

220

A web-based GIS Decision Support System for managing and planning USDA's Conservation Reserve Program (CRP)  

E-Print Network [OSTI]

A web-based GIS Decision Support System for managing and planning USDA's Conservation Reserve of a prototype web-GIS Decision Support System (DSS), CRP-DSS, for use in resource management and assessment enrollments. The DSS is based on the emerging industry-standard ArcIMS GIS platform and integrates a mapping

Fan, Guoliang

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

MATERIALS AND COMPONENT DEVELOPMENT FOR ADVANCED TURBINE SYSTEMS  

SciTech Connect (OSTI)

Future hydrogen-fired or oxy-fuel turbines will likely experience an enormous level of thermal and mechanical loading, as turbine inlet temperatures (TIT) approach 1425-1760C with pressures of 300-625 psig, respectively. Maintaining the structural integrity of future turbine components under these extreme conditions will require durable thermal barrier coatings (TBCs), high temperature creep resistant metal substrates, and effective cooling techniques. While advances in substrate materials have been limited for the past decades, thermal protection of turbine airfoils in future hydrogen-fired and oxy-fuel turbines will rely primarily on collective advances in TBCs and aerothermal cooling. To support the advanced turbine technology development, the National Energy Technology Laboratory (NETL) at the Office of Research and Development (ORD) has initiated a research project effort in collaboration with the University of Pittsburgh (UPitt), and West Virginia University (WVU), working in conjunction with commercial material and coating suppliers, to develop advanced materials, aerothermal configurations, as well as non-destructive evaluation techniques for use in advanced land-based gas turbine applications. This paper reviews technical accomplishments recently achieved in each of these areas.

M. A. Alvin

2009-06-12T23:59:59.000Z

222

Technical review of Westinghouse`s Advanced Turbine Systems Program  

SciTech Connect (OSTI)

US DOE`s ATS program has the goals of increased efficiency of natural gas-fired power generation plants, decreased cost of electricity, and a decrease in harmful emissions. The Westinghouse ATS plant is based on an advanced gas turbine design combined with an advanced steam turbine and a high efficiency generator. Objectives of the ATS Program Phase 2 are to select the ATS cycle and to develop technologies required to achieve ATS Program goals: combustion, cooling, aerodynamics, leakage control, coatings, materials. This paper describes progress on each.

Diakunchak, I.S.; Bannister, R.L.

1995-12-31T23:59:59.000Z

223

[Advanced Gas Turbine Systems Research]. Technical Quarterly Progress Report  

SciTech Connect (OSTI)

Major Accomplishments by Advanced Gas Turbine Systems Research (AGTSR) during this reporting period are highlighted below and amplified in later sections of this report: AGTSR distributed 50 proposals from the 98RFP to the IRB for review, evaluation and rank-ordering during the summer; AGTSR conducted a detailed program review at DOE-FETC on July 24; AGTSR organized the 1998 IRB proposal review meeting at SCIES on September 15-16; AGTSR consolidated all the IRB proposal scores and rank-orderings to facilitate the 98RFP proposal deliberations; AGTSR submitted meeting minutes and proposal short-list recommendation to the IRB and DOE for the 98RFP solicitation; AGTSR reviewed two gas turbine related proposals as part of the CU RFP State Project for renovating the central energy facility; AGTSR reviewed and cleared research papers with the IRB from the University of Pittsburgh, Wisconsin, and Minnesota; AGTSR assisted GTA in obtaining university stakeholder support of the ATS program from California, Pennsylvania, and Colorado; AGTSR assisted GTA in distributing alert notices on potential ATS budget cuts to over 150 AGTSR performing university members; AGTSR submitted proceedings booklet and organizational information pertaining to the OAI hybrid gas turbine workshop to DOE-FETC; For DOE-FETC, AGTSR updated the university consortium poster to include new members and research highlights; For DOE-FETC, the general AGTSR Fact Sheet was updated to include new awards, workshops, educational activity and select accomplishments from the research projects; For DOE-FETC, AGTSR prepared three fact sheets highlighting university research supported in combustion, aero-heat transfer, and materials; For DOE-FETC, AGTSR submitted pictures on materials research for inclusion in the ATS technology brochure; For DOE-FETC, AGTSR submitted a post-2000 roadmap showing potential technology paths AGTSR could pursue in the next decade; AGTSR distributed the ninth newsletter UPDATE to DOE, the IRB: and two interested partners involved in ATS; AGTSR submitted information on its RFP's, workshops, and educational activities for the 1999 ASMWIGTI technology report for worldwide distribution; AGTSR coordinated university poster session titles and format with Conference Management Associates (CMA) for the 98 ATS Annual; and AGTSR submitted 2-page abstract to CMA for the 98 ATS Review titled: ''AGTSR: A Virtual National Lab''.

NONE

1998-09-30T23:59:59.000Z

224

SunShot Initiative: Solar Energy Grid Integration Systems-Advanced  

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

Grid Integration Systems-Advanced Concepts Grid Integration Systems-Advanced Concepts On September 1, 2011, DOE announced $25.9 million to fund eight solar projects that are targeting ways to develop power electronics and build smarter, more interactive systems and components so that solar energy can be integrated into the electric power distribution and transmission grid at higher levels. Part of the SunShot Systems Integration efforts, the Solar Energy Grid Integration Systems - Advanced Concepts (SEGIS-AC) projects will help advance a smart grid that will handle two-way flows of power and communication, in contrast to the one-way power flow and limited communication that exists today. More information about these projects is available on the SEGIS-AC Projects page at the High Penetration Solar Portal.

225

The zeroth law of thermodynamics and volume-preserving conservative system in equilibrium with stochastic damping  

Science Journals Connector (OSTI)

Abstract We propose a mathematical formulation of the zeroth law of thermodynamics and develop a stochastic dynamical theory, with a consistent irreversible thermodynamics, for systems possessing sustained conservative stationary current in phase space while in equilibrium with a heat bath. The theory generalizes underdamped mechanical equilibrium: d x = g d t + { ? D ? ? d t + 2 D d B ( t ) } , with ? ? g = 0 and { ? } respectively representing phase-volume preserving dynamics and stochastic damping. The zeroth law implies stationary distribution u s s ( x ) = e ? ? ( x ) . We find an orthogonality ? ? ? g = 0 as a hallmark of the system. Stochastic thermodynamics based on time reversal ( t , ? , g ) ? ( ? t , ? , ? g ) is formulated: entropy production e p # ( t ) = ? d F ( t ) / d t ; generalized heat h d # ( t ) = ? d U ( t ) / d t , U ( t ) = ? R n ? ( x ) u ( x , t ) d x being internal energy, and free energy F ( t ) = U ( t ) + ? R n u ( x , t ) ln u ( x , t ) d x never increases. Entropy follows d S d t = e p # ? h d # . Our formulation is shown to be consistent with an earlier theory of P. Ao. Its contradistinctions to other theories, potential-flux decomposition, stochastic Hamiltonian system with even and odd variables, KleinKramers equation, FreidlinWentzell?s theory, and GENERIC, are discussed.

Hong Qian

2014-01-01T23:59:59.000Z

226

Bayer Material Science (TRL 1 2 3 System)- River Devices to Recover Energy with Advanced Materials(River DREAM)  

Broader source: Energy.gov [DOE]

Bayer Material Science (TRL 1 2 3 System) - River Devices to Recover Energy with Advanced Materials(River DREAM)

227

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems  

Broader source: Energy.gov [DOE]

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems

228

Advanced Diesel Common Rail Injection System for Future Emission Legislation  

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Robert Bosch GMBH Common Rail System Engineering for PC Diesel Systems

229

Advanced Coal-Extraction-Systems Project: report of activities for fiscal year 1980-1981. [By coal field and basin  

SciTech Connect (OSTI)

The Advanced Coal Extraction Systems Project completed several major accomplishments in the definition of target resources, definition of conceptual design requirements for Central Appalachia coals, and initiation of the conceptual design effort. Geologically and economically significant resources were characterized, resulting in recommendations for additional target resources; conceptual design requirements for Central Appalachia coals in the areas of production cost, safety, health, environmental impact, and coal conservation were formulated; and strategies for internal and external design efforts were defined. In addition, an in-depth health and safety evaluation of a modified tunnel borer design for coal mining was completed. At the end of fiscal year 1980-1981, the project was prepared to begin evolution and evaluation of conceptual designs for advanced coal mining systems. The selection of Central Appalachia as the target region automatically imposes certain restrictions and constraints, pertinent to the geology, geography, and other aspects of the operating environment. Requirements imposed by the target resource are summarized. Figure 2-1 presents an overview of the relationship between the conceptual design requirements and the constraints imposed by the Central Appalachian target resource.

Dutzi, E.J.

1982-03-15T23:59:59.000Z

230

Using conservation to reduce energy system uncertainty in the US north-west electric system  

Science Journals Connector (OSTI)

The uncertainty of the US north-west electric system was the subject of a recent study for the Bonneville Power Administration. The study focused on the impact of efficiency standards that would reduce the electricity used in new buildings and appliances. The main question was whether the standards would also reduce the long-term uncertainty in the system. This paper summarises the case study findings which should be of interest to energy planners in Europe as well as in the USA.

Andrew Ford

1990-01-01T23:59:59.000Z

231

Materials and Component Development for Advanced Turbine Systems  

SciTech Connect (OSTI)

Hydrogen-fired and oxy-fueled land-based gas turbines currently target inlet operating temperatures of ?1425-1760C (?2600-3200F). In view of natural gas or syngas-fired engines, advancements in both materials, as well as aerothermal cooling configurations are anticipated prior to commercial operation. This paper reviews recent technical accomplishments resulting from NETLs collaborative research efforts with the University of Pittsburgh and West Virginia University for future land-based gas turbine applications.

Alvin, M.A.; Pettit, F.; Meier, G.H.; Yanar, M.; Helminiak, M.; Chyu, M.; Siw, S.; Slaughter, W.S.; Karaivanov, V.; Kang, B.S.; Feng, C.; Tannebaum, J.M.; Chen, R.; Zhang, B.; Fu, T.; Richards, G.A,; Sidwell, T.G.; Straub, D.; Casleton, K.H.; Dogan, O.M.

2008-07-01T23:59:59.000Z

232

Development of environmentally advanced hydropower turbine system design concepts  

SciTech Connect (OSTI)

A team worked together on the development of environmentally advanced hydro turbine design concepts to reduce hydropower`s impact on the environment, and to improve the understanding of the technical and environmental issues involved, in particular, with fish survival as a result of their passage through hydro power sites. This approach brought together a turbine design and manufacturing company, biologists, a utility, a consulting engineering firm and a university research facility, in order to benefit from the synergy of diverse disciplines. Through a combination of advanced technology and engineering analyses, innovative design concepts adaptable to both new and existing hydro facilities were developed and are presented. The project was divided into 4 tasks. Task 1 investigated a broad range of environmental issues and how the issues differed throughout the country. Task 2 addressed fish physiology and turbine physics. Task 3 investigated individual design elements needed for the refinement of the three concept families defined in Task 1. Advanced numerical tools for flow simulation in turbines are used to quantify characteristics of flow and pressure fields within turbine water passageways. The issues associated with dissolved oxygen enhancement using turbine aeration are presented. The state of the art and recent advancements of this technology are reviewed. Key elements for applying turbine aeration to improve aquatic habitat are discussed and a review of the procedures for testing of aerating turbines is presented. In Task 4, the results of the Tasks were assembled into three families of design concepts to address the most significant issues defined in Task 1. The results of the work conclude that significant improvements in fish passage survival are achievable.

Franke, G.F.; Webb, D.R.; Fisher, R.K. Jr. [Voith Hydro, Inc. (United States)] [and others

1997-08-01T23:59:59.000Z

233

REQUEST BY OCEANEERING SPACE SYSTEMS FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT  

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

OCEANEERING SPACE SYSTEMS FOR AN ADVANCE OCEANEERING SPACE SYSTEMS FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER DEPARTMENT OF ENERGY CONTRACT NO. DE-AC21-93MC30178; DOE WAIVER DOCKET W(A)-95-040 [ORO-613] Oceaneering Space Systems (OSS) has made a timely request for an advance waiver to worldwide rights in Subject Inventions made in the course of or under Phase II of Department of Energy (DOE) Contract No. DE-AC21-93MC30178. The scope of the work calls for the development of a full scale, certified, pre-production Advanced Worker Protection System (AWPS) and a site demonstration. The work is sponsored by the Office of the Deputy Assistant Secretary for Science and Technology. The negotiated value of Phase II of the contract is $1,971,649, with OSS cost sharing $502,276

234

Advanced thermal barrier coating system development. Technical progress report, August 1, 1996--September 30, 1996  

SciTech Connect (OSTI)

Objectives of this program are to provide an advanced thermal barrier coating system with improved reliability and temperature capability. This report describes the coating/deposition process, repair, and manufacturing.

NONE

1996-10-04T23:59:59.000Z

235

Survey of advances in guidance, navigation, and control of unmanned rotorcraft systems  

Science Journals Connector (OSTI)

Recently, there has been growing interest in developing unmanned aircraft systems (UAS) with advanced onboard autonomous capabilities. This paper describes the current state of the art in autonomous rotorcraft UAS (RUAS) and provides a detailed literature ...

Farid Kendoul

2012-03-01T23:59:59.000Z

236

Fact Sheet: Advanced Natural Gas Systems Manufacturing R&D initiative  

Energy Savers [EERE]

Fact Sheet: Advanced Natural Gas Systems Manufacturing R&D initiative 1 of 1 Summary: DOE will launch a collaborative effort with industry to evaluate and scope high- impact...

237

Vehicle Technologies Office Merit Review 2014: Advanced Climate Systems for EV Extended Range  

Broader source: Energy.gov [DOE]

Presentation given by Halla Visteon at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced climate systems for EV...

238

Applied Materials Develops an Advanced Epitaxial Growth System to Bring Down LED Costs  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Applied Materials has developed an advanced epitaxial growth system for gallium nitride (GaN) LED devices that decreases operating costs, increases internal quantum efficiency, and improves binning yields.

239

Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award  

Office of Energy Efficiency and Renewable Energy (EERE)

Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants can burn to make electricity.

240

Advanced Reciprocating Engine Systems (ARES) R&D- Presentation by Argonne National Laboratory, June 2011  

Broader source: Energy.gov [DOE]

Presentation on Technologies for Gaseous Fueled Advanced Reciprocating Engine Systems (ARES), given by Sreenath Gupta at the U.S. DOE Industrial Distributed Energy Portfolio Review Meeting in Washington, D.C. on June 1-2, 2011.

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hydrothermal spallation drilling and advanced energy conversion technologies for Engineered Geothermal Systems  

E-Print Network [OSTI]

The purpose of this research was to study the various factors affecting the economic and technical feasibility of Engineered Geothermal Systems, with a special emphasis on advanced drilling technologies. The first part of ...

Augustine, Chad R

2009-01-01T23:59:59.000Z

242

Tomorrow`s energy today for cities and counties -- Alternative wastewater treatment: Advanced Integrated Pond systems  

SciTech Connect (OSTI)

This report provides a discussion of the design, construction, operation, and maintenance of the Advanced Integrated Pond System as an alternative for other more costly municipal waste water treatment plants.

Not Available

1993-10-01T23:59:59.000Z

243

Advanced turbine systems study system scoping and feasibility study. Final report  

SciTech Connect (OSTI)

United Technologies Research Center, Pratt & Whitney Commercial Engine Business, And Pratt & Whitney Government Engine and Space Propulsion has performed a preliminary analysis of an Advanced Turbine System (ATS) under Contract DE-AC21-92MC29247 with the Morgantown Energy Technology Center. The natural gas-fired reference system identified by the UTC team is the Humid Air Turbine (HAT) Cycle in which the gas turbine exhaust heat and heat rejected from the intercooler is used in a saturator to humidify the high pressure compressor discharge air. This results in a significant increase in flow through the turbine at no increase in compressor power. Using technology based on the PW FT4000, the industrial engine derivative of the PW4000, currently under development by PW, the system would have an output of approximately 209 MW and an efficiency of 55.3%. Through use of advanced cooling and materials technologies similar to those currently in the newest generation military aircraft engines, a growth version of this engine could attain approximately 295 MW output at an efficiency of 61.5%. There is the potential for even higher performance in the future as technology from aerospace R&D programs is adapted to aero-derivative industrial engines.

Not Available

1993-04-01T23:59:59.000Z

244

Advanced Thermal Storage System with Novel Molten Salt: December 8, 2011 - April 30, 2013  

SciTech Connect (OSTI)

Final technical progress report of Halotechnics Subcontract No. NEU-2-11979-01. Halotechnics has demonstrated an advanced thermal energy storage system with a novel molten salt operating at 700 degrees C. The molten salt and storage system will enable the use of advanced power cycles such as supercritical steam and supercritical carbon dioxide in next generation CSP plants. The salt consists of low cost, earth abundant materials.

Jonemann, M.

2013-05-01T23:59:59.000Z

245

Method and system for advancement of a borehole using a high power laser  

DOE Patents [OSTI]

There is provided a system, apparatus and methods for the laser drilling of a borehole in the earth. There is further provided with in the systems a means for delivering high power laser energy down a deep borehole, while maintaining the high power to advance such boreholes deep into the earth and at highly efficient advancement rates, a laser bottom hole assembly, and fluid directing techniques and assemblies for removing the displaced material from the borehole.

Moxley, Joel F.; Land, Mark S.; Rinzler, Charles C.; Faircloth, Brian O.; Zediker, Mark S.

2014-09-09T23:59:59.000Z

246

Advancing State-of-the-Art Concentrating Solar Power Systems  

Office of Energy Efficiency and Renewable Energy (EERE)

New solar receiver for CSP system leads to higher efficiency, increased durability, and reduced cost.

247

STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF  

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

DELPHI AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF DELPHI AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF PATENT RIGHTS TO INVENTIONS MADE UNDER SUBCONTRACT QZ001 UNDER COOPERATIVE AGREEMENT DE-NT0003894; W(A)-09-061 ; CH1525 Delphi Automotive Systems LLC (Delphi), requests an advance waiver of domestic and foreign patent rights for all subject inventions made under the above subcontract. Delphi is a subcontractor to United Technologies under the referenced cooperative agreement. The purpose of the cooperative agreement is the development of solid oxide fuel (SOFC) cell and stack technology suitable for use in highly-efficient, economically-competitive central generation power plant facilities fueled by coal synthesis gas, (syngas). According to its response to question 2 of the petition, Delphi states that development of this technology will significantly advance the nation's

248

Building America Top Innovations Hall of Fame Profile … Advanced Framing Systems and Packages  

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

studies involving studies involving thousands of homes have documented significant material, labor, and energy savings when production builders implement advanced framing techniques. Advanced framing can reduce the number of studs in the walls by up to one-third, reducing the cost of materials. and reducing the cost of labor in terms of the time it takes to handle, cut, install, drill, and attach to studs. Actual savings have exceeded $1,000 per home. Studies show the resulting improvement in thermal performance can yield 13% energy savings. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions Advanced Framing Systems and Packages Building America has developed best practices for advanced framing

249

Analysis and Evaluation about Advanced Humid Air Turbine System  

Science Journals Connector (OSTI)

It is required for the power generation system that the generation efficiency is higher and operation characteristics are better. Many gas turbine systems which increased power, improved generation efficiency and...

Toru Takahashi; Yoshinobu Nakao; Eiichi Koda

2007-01-01T23:59:59.000Z

250

REQUEST BY INGERSOLL-RAND ENERGY SYSTEMS, INC., FOR AN ADVANCE  

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

INGERSOLL-RAND ENERGY SYSTEMS, INC., FOR AN ADVANCE INGERSOLL-RAND ENERGY SYSTEMS, INC., FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER SUBCONTRACT NO. 4000009528 UNDER DOE PRIME CONTRACT NO. DE-AC05-00OR22725; DOE WAIVER DOCKET W(A)-01- 034 IORO-768] Petitioner, Ingersoll-Rand Energy Systems Corporation, has made a timely request for an advance waiver to worldwide rights in Subject Inventions made in the course of or under Subcontract No. 4000009528 under DOE Prime Contract No. DE-ACO5-00OR22725 with UT- Battelle, Inc., M&O Contractor of Oak Ridge National Laboratory. The scope of this work is for the development of a packaged/modular building cooling heating and power (BCHP) system, combining the commercial-ready Ingersoll-Rand Energy Systems' PowerWorksTM 70 kW

251

Comparing advanced exergetic assessments of two geothermal district heating systems for residential buildings  

Science Journals Connector (OSTI)

Abstract Advanced exergy analysis method has been increasingly utilized in analyzing and assessing the performance of energy-related systems in recent years due to more deeply investigating the exergy destructions. In this study, two various geothermal district heating systems (GDHSs), the Afyon and Bigadi GDHSs, which have been operated in Turkey, were considered to perform their advanced exergy analyses and assessments. The \\{GDHSs\\} studied were also compared with each other for the first time in terms of advanced exergetic aspects. In the analyses and calculations of the GDHS, the actual operational data obtained from the measurements and technical staff were utilized. The overall conventional and advanced exergetic efficiency values for the Afyon GDHS are determined to be 27.53% and 34.72% while those for the Bigadi GDHS are obtained to be 21.03% and 32.52%, respectively. Considering both the interactions among components and the potential for improving components, more effective and efficient improvement priorities were proposed.

Ali Keeba?; Can Coskun; Zuhal Oktay; Arif Hepbasli

2014-01-01T23:59:59.000Z

252

Advanced turbine systems program conceptual design and product development. Quarterly report, August--October 1995  

SciTech Connect (OSTI)

This report describes the tasks completed for the advanced turbine systems program. The topics of the report include last row turbine blade development, single crystal blade casting development, ceramic materials development, combustion cylinder flow mapping, shroud film cooling, directional solidified valve development, shrouded blade cooling, closed-loop steam cooling, active tip clearance control, flow visualization tests, combustion noise investigation, TBC field testing, catalytic combustion development, optical diagnostics probe development, serpentine channel cooling tests, brush seal development, high efficiency compressor design, advanced air sealing development, advanced coating development, single crystal blade development, Ni-based disc forging development, and steam cooling effects on materials.

NONE

1996-01-01T23:59:59.000Z

253

Field Testing of the Advanced Worker Protection System  

Office of Scientific and Technical Information (OSTI)

Information Oceaneering Space Systems would also like to acknowledge our Contracting Officer Represen- tative Mr. Steven Bossart with Morgantown Energy Technology...

254

Development of Advanced Diesel Particulate Filtration (DPF) Systems  

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

ILJIN Electric Co., Korea IBIDEN, Japan Relevance and Objectives Existing DPF systems still need to improve filtrationregeneration efficiencies and pressure drops. ...

255

Development of Advanced Diesel Particulate Filtration (DPF) Systems  

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

Foster) - Honda Motor in Japan Complimentary Part Supply - Iljin Electric Co. (DPF heating systems for regeneration) 18 - - Summary Experimental setup for DPF filtration...

256

Development of Advanced Diesel Particulate Filtration (DPF) Systems  

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

efficient regeneration strategies, which can control thermal run-away. Accurate measurement of heat release is needed. A real-time DPF controlmanagement system is...

257

NREL - Advanced Vehicles and Fuels Basics - Center for Transportation Technologies and Systems 2010  

ScienceCinema (OSTI)

We can improve the fuel economy of our cars, trucks, and buses by designing them to use the energy in fuels more efficiently. Researchers at the National Renewable Energy Laboratory (NREL) are helping the nation achieve these goals by developing transportation technologies like: advanced vehicle systems and components; alternative fuels; as well as fuel cells, hybrid electric, and plug-in hybrid vehicles. For a text version of this video visit http://www.nrel.gov/learning/advanced_vehicles_fuels.html

None

2013-05-29T23:59:59.000Z

258

NREL - Advanced Vehicles and Fuels Basics - Center for Transportation Technologies and Systems 2010  

SciTech Connect (OSTI)

We can improve the fuel economy of our cars, trucks, and buses by designing them to use the energy in fuels more efficiently. Researchers at the National Renewable Energy Laboratory (NREL) are helping the nation achieve these goals by developing transportation technologies like: advanced vehicle systems and components; alternative fuels; as well as fuel cells, hybrid electric, and plug-in hybrid vehicles. For a text version of this video visit http://www.nrel.gov/learning/advanced_vehicles_fuels.html

None

2010-01-01T23:59:59.000Z

259

Practical forensic analysis in advanced access content system  

Science Journals Connector (OSTI)

In this paper we focus on the use of a traitor tracing scheme for distribution models that are one-to-many. It can be a networked broadcast system; It can be based on prerecorded or recordable physical media. In this type of system, it is infeasible ...

Hongxia Jin; Jeffery Lotspiech

2006-04-01T23:59:59.000Z

260

Advanced 3D Sensing and Visualization System for Unattended Monitoring  

SciTech Connect (OSTI)

The purpose of this project was to create a reliable, 3D sensing and visualization system for unattended monitoring. The system provides benefits for several of Sandia's initiatives including nonproliferation, treaty verification, national security and critical infrastructure surety. The robust qualities of the system make it suitable for both interior and exterior monitoring applications. The 3D sensing system combines two existing sensor technologies in a new way to continuously maintain accurate 3D models of both static and dynamic components of monitored areas (e.g., portions of buildings, roads, and secured perimeters in addition to real-time estimates of the shape, location, and motion of humans and moving objects). A key strength of this system is the ability to monitor simultaneous activities on a continuous basis, such as several humans working independently within a controlled workspace, while also detecting unauthorized entry into the workspace. Data from the sensing system is used to identi~ activities or conditions that can signi~ potential surety (safety, security, and reliability) threats. The system could alert a security operator of potential threats or could be used to cue other detection, inspection or warning systems. An interactive, Web-based, 3D visualization capability was also developed using the Virtual Reality Modeling Language (VRML). The intex%ace allows remote, interactive inspection of a monitored area (via the Internet or Satellite Links) using a 3D computer model of the area that is rendered from actual sensor data.

Carlson, J.J.; Little, C.Q.; Nelson, C.L.

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Advanced islanding detection utilized in distribution systems with DFIG  

Science Journals Connector (OSTI)

Abstract The penetration of distributed generation (DG) in electrical power systems is rapidly increasing these days and more attention is drawn to maintain a healthy distribution system. Islanding operation of \\{DGs\\} is one of the biggest challenges to the distribution system stability. Fast and accurate islanding detection can avoid the possibility of damages to the \\{DGs\\} when they are un-intentionally reconnected to the grid and also provide useful information to the protection and automation design of the stand alone operated system. Rate of change of frequency (ROCOF) method is one of the most commonly employed anti-islanding protection techniques, it offers fast detection and easy implementation. However, it is often easily affected by the system disturbance and might not able to detect the islanding situation if the power imbalance between the DG and the load is small. This paper investigates an inter-lock method which can improve the performance of rate of change of frequency (ROCOF) by applying system impedance estimation. It was found that this new method can help in verifying the ROCOF relay islanding detection and avoiding false operations of ROCOF in a grid connected distribution system which has large load variations. The proposed method was verified using the experimental testing results derived from both an experimental testing model which includes an 8kW Double Feed Induction Generator (DFIG) and a 9MW DFIG simulation system.

Ke Jia; Tianshu Bi; Bohan Liu; David Thomas; Andrew Goodman

2014-01-01T23:59:59.000Z

262

Review of recent advances of radioisotope power systems  

Science Journals Connector (OSTI)

Radioisotope power systems have demonstrated numerous advantages over other types of power supplies for long-lived, unattended applications in space and in remote terrestrial locations. Many especially challenging power applications can be satisfied by proper selection, design, and integration of the radioisotope heat source and the power conversion technologies that are now available or that can be developed. This paper provides a brief review of the factors influencing selection of radioisotopes and design of power systems, and discusses the current state of practice and future programmatic and technical challenges to continued use of radioisotope power systems in space.

Robert G. Lange; Wade P. Carroll

2008-01-01T23:59:59.000Z

263

Advanced study techniques: tools for HVDC systems design  

SciTech Connect (OSTI)

High voltage direct current (HVDC) transmission systems, which offer functional as well as environmental and economic advantages, could see a 15% growth rate over the next decade. Design studies of HVDC system components are complicated by the need to cover 11 major elements: power system, insulation coordination, filter design, subsynchronous torsional interaction, circuit breaker requirements, power line carrier and radio interference, electric fields and audible noise, protective relaying, availability and reliability, efficiency, equipment specification, and HVDC simulator and Transient Network Analyzers. The author summarizes and illustrates each element. 6 figures, 1 table.

Degeneff, R.C.

1984-01-01T23:59:59.000Z

264

Basics of Advanced Software Systems Static cyclic scheduling on automotive Electronic Control Units (ECU)  

E-Print Network [OSTI]

Basics of Advanced Software Systems Static cyclic scheduling on automotive Electronic Control Units Systems ­ Coursework ­ March 9, 2012. lic scheduling on automotive Electronic Control Units (ECU) (nicolas - Name, - Execution time, - Period of execution, - First activation date, also cal period. The scheduling

Navet, Nicolas

265

CENPES/EB-AB-G&E/AEDC Corporativo Advanced Control System Industrial  

E-Print Network [OSTI]

the specification of products, Minimize energy consumption, Minimizes the process variability which increases safety in the propane refrigeration system Limitations due to low thermal exchange area were generating saturationCENPES/EB-AB-G&E/AEDC Corporativo Advanced Control System ­ Industrial Results and New Challenges

Grossmann, Ignacio E.

266

Advanced Robotics Journal, Vol. X, No. Y, 2002 (to appear) SCALED TELEOPERATION SYSTEM FOR NANO SCALE  

E-Print Network [OSTI]

Advanced Robotics Journal, Vol. X, No. Y, 2002 (to appear) SCALED TELEOPERATION SYSTEM FOR NANO for teleoperated nano scale object interaction and manipulation. Design specifications for a bilateral scaled system, initial experiments are realized for interacting with nano scale surfaces. It is shown that fine

Sitti, Metin

267

Advancing State-of-the-Art Concentrating Solar Power Systems...  

Office of Environmental Management (EM)

salt or steam, on which today's state-of-the-art CSP systems rely. The Brayton Energy design enables the use of low-cost materials and simplified manufacturing methods, leading to...

268

DOE/NETL ADVANCED COMBUSTION SYSTEMS: CHEMICAL LOOPING SUMMARY  

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

-OSU-Coal%20Direct%20Chem%20Looping.pdf. Fan, L.-S., "Chemical Looping Systems for Fossil Energy Conversions," John Wiley & Sons, Inc., Hoboken, NJ, USA, October 2010. http:...

269

Advanced Instrumentation, Information, and Control Systems Technologies Technical Program Plan  

SciTech Connect (OSTI)

Reliable instrumentation, information, and control (II&C) systems technologies are essential to ensuring safe and efficient operation of the U.S. light water reactor (LWR) fleet. These technologies affect every aspect of nuclear power plant (NPP) and balance-of-plant operations. In 1997, the National Research Council conducted a study concerning the challenges involved in modernization of digital instrumentation and control systems in NPPs. Their findings identified the need for new II&C technology integration.

Bruce Hallbert

2012-09-01T23:59:59.000Z

270

ADVANCED WIRELESS CHARGING SYSTEM FOR PORTABLE ELECTRIC DEVICES  

E-Print Network [OSTI]

within a power network and microgrids. The formulation and im- plementation of the optimal surfaces are presented, in addition to experimental validation of the new power buffer control law. Index Terms?DC power systems, differential game, distributed... control, nonlinear systems, power buffers. I. INTRODUCTION INA LOCAL area electrical power networks, such as a mi-crogrids [1] or electric ships [2], all components of the sys- tem, including sources, loads, and distribution have multiple commitments...

Liu, Jianyang

2012-04-19T23:59:59.000Z

271

Systems integration and analysis of advanced life support technologies  

E-Print Network [OSTI]

................................................................................... 17 3.1. Methodical Analysis of ALS Technologies.............................................. 17 3.2. Computer-Aided Analysis ........................................................................ 18 4 METHODS OF ANALYSIS... requirement of the system [kWth] Ceq Mass equivalency factor for the cooling infrastructure [kg/kWth] CT Total crewtime requirement of the system [CM-h/y] D Duration of the mission segment of interest [y] CTeq Mass equivalency factor for the crewtime...

Nworie, Grace A.

2009-06-02T23:59:59.000Z

272

Weldability and joining techniques for advanced fossil energy system alloys  

SciTech Connect (OSTI)

The efforts represent the concerns for the basic understanding of the weldability and fabricability of the advanced high temperature alloys so necessary to affect increases in the efficiency of the next generation Fossil Energy Power Plants. The effort was divided into three tasks with the first effort dealing with the welding and fabrication behavior of 310HCbN (HR3C), the second task details the studies aimed at understanding the weldability of a newly developed 310TaN high temperature stainless (a modification of 310 stainless) and Task 3 addressed the cladding of austenitic tubing with Iron-Aluminide using the GTAW process. Task 1 consisted of microstructural studies on 310HCbN and the development of a Tube Weldability test which has applications to production welding techniques as well as laboratory weldability assessments. In addition, the evaluation of ex-service 310HCbN which showed fireside erosion and cracking at the attachment weld locations was conducted. Task 2 addressed the behavior of the newly developed 310 TaN modification of standard 310 stainless steel and showed that the weldability was excellent and that the sensitization potential was minimal for normal welding and fabrication conditions. The microstructural evolution during elevated temperature testing was characterized and the second phase particles evolved upon aging were identified. Task 3 details the investigation undertaken to clad 310HCbN tubing with Iron Aluminide and developed welding conditions necessary to provide a crack free cladding. The work showed that both a preheat and a post-heat was necessary for crack free deposits and the effect of a third element on the cracking potential was defined together with the effect of the aluminum level for optimum weldability.

Lundin, C.D.; Qiao, C.Y.P.; Liu, W.; Yang, D.; Zhou, G.; Morrison, M. [Univ. of Tennessee, Knoxville, TN (United States)

1998-05-01T23:59:59.000Z

273

Advanced thermal barrier coating system development. Technical progress report  

SciTech Connect (OSTI)

The objectives of the program are to provide an improved TBC system with increased temperature capability and improved reliability relative to current state of the art TBC systems. The development of such a coating system is essential to the ATS engine meeting its objectives. The base program consists of three phases: Phase 1: Program Planning--Complete; Phase 2: Development; Phase 3: Selected Specimen--Bench Test. Work is currently being performed in Phase 2 of the program. In Phase 2, process improvements will be married with new bond coat and ceramic materials systems to provide improvements over currently available TBC systems. Coating reliability will be further improved with the development of an improved lifing model and NDE techniques. This will be accomplished by conducting the following program tasks: II.1 Process Modeling; II.2 Bond Coat Development; II.3 Analytical Lifing Model; II.4 Process Development; II.5 NDE, Maintenance and Repair; II.6 New TBC Concepts. A brief summary is given of progress made in each of these 6 areas.

NONE

1996-06-10T23:59:59.000Z

274

Advanced thermal barrier coating system development. Technical progress report  

SciTech Connect (OSTI)

The objectives of the program are to provide an improved TBC system with increased temperature capability and improved reliability relative to current state of the art TBC systems. The development of such a coating system is essential to the ATS engine meeting its objectives. The base program consists of three phases: Phase 1: Program Planning--Complete; Phase 2: Development; Phase 3: Selected Specimen--Bench Test. Work is currently being performed in Phase 2 of the program. In Phase 2, process improvements will be married with new bond coat and ceramic materials systems to provide improvements over currently available TBC systems. Coating reliability will be further improved with the development of an improved lifing model and NDE techniques. This will be accomplished by conducting the following program tasks: II.1 Process Modeling; II.2 Bond Coat Development; II.3 Analytical Lifing Model; II.4 Process Development; II.5 NDE, Maintenance and Repair; II.6 New TBC Concepts. A brief summary of progress made in each of these 6 areas is given.

NONE

1996-10-04T23:59:59.000Z

275

Testing of an advanced thermochemical conversion reactor system  

SciTech Connect (OSTI)

This report presents the results of work conducted by MTCI to verify and confirm experimentally the ability of the MTCI gasification process to effectively generate a high-quality, medium-Btu gas from a wider variety of feedstock and waste than that attainable in air-blown, direct gasification systems. The system's overall simplicity, due to the compact nature of the pulse combustor, and the high heat transfer rates attainable within the pulsating flow resonance tubes, provide a decided and near-term potential economic advantage for the MTCI indirect gasification system. The primary objective of this project was the design, construction, and testing of a Process Design Verification System for an indirectly heated, thermochemical fluid-bed reactor and a pulse combustor an an integrated system that can process alternative renewable sources of energy such as biomass, black liquor, municipal solid waste and waste hydrocarbons, including heavy oils into a useful product gas. The test objectives for the biomass portion of this program were to establish definitive performance data on biomass feedstocks covering a wide range of feedstock qualities and characteristics. The test objectives for the black liquor portion of this program were to verify the operation of the indirect gasifier on commercial black liquor containing 65 percent solids at several temperature levels and to characterize the bed carbon content, bed solids particle size and sulfur distribution as a function of gasification conditions. 6 refs., 59 figs., 29 tabs.

Not Available

1990-01-01T23:59:59.000Z

276

Advanced Turbine Systems Program conceptual design and product development. Task 3.0, Selection of natural gas-fired Advanced Turbine System  

SciTech Connect (OSTI)

This report presents results of Task 3 of the Westinghouse ATS Phase II program. Objective of Task 3 was to analyze and evaluate different cycles for the natural gas-fired Advanced Turbine Systems in order to select one that would achieve all ATS program goals. About 50 cycles (5 main types) were evaluated on basis of plant efficiency, emissions, cost of electricity, reliability-availability-maintainability (RAM), and program schedule requirements. The advanced combined cycle was selected for the ATS plant; it will incorporate an advanced gas turbine engine as well as improvements in the bottoming cycle and generator. Cost and RAM analyses were carried out on 6 selected cycle configurations and compared to the baseline plant. Issues critical to the Advanced Combined Cycle are discussed; achievement of plant efficiency and cost of electricity goals will require higher firing temperatures and minimized cooling of hot end components, necessitating new aloys/materials/coatings. Studies will be required in combustion, aerodynamic design, cooling design, leakage control, etc.

NONE

1994-12-01T23:59:59.000Z

277

STATEMENT OF CONSIDERATIONS REQUEST BY SHELL SOLAR SYSTEMS, LP FOR AN ADVANCE WAIVER OF  

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

SYSTEMS, LP FOR AN ADVANCE WAIVER OF SYSTEMS, LP FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER NREL SUBCONTRACT NO. ZDO-2-30628-06 ENTITLED "PV MANUFACTURING R&D-INTEGRATED CIS THIN-FILM MANUFACTURING INFRASTRUCTURE" UNDER DOE CONTRACT NO. DE- AC36-83CH10093; W(A)-02-039; CH-1116 As set out ins the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Shell Solar Systems, LP (SSI) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified subcontract by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 98-517, as amended, and National Laboratories. Referring to item 2 of SSI's waiver petition, the purpose of this subcontract

278

REQUEST BY BALLARD POWER SYSTEMS CORPORATION FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN  

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

BALLARD POWER SYSTEMS CORPORATION FOR AN BALLARD POWER SYSTEMS CORPORATION FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER UT- BATTELLE, LLC SUBCONTRACT NO. 4000029752 UNDER PRIME CONTRACT NO. DE-AC05-00OR22725; DOE WAIVER DOCKET W(A)- 04-055 [ORO-790] Ballard Power Systems Corporation (Ballard) has made a timely request for an advance waiver of worldwide rights in Subject Inventions made in the course of or under UT- Battelle, LLC Subcontract No. 4000029752, entitled, "Research and Development of Fuel Cell & Advanced Vehicle Power Electronics and Machinery Applications" under UT-Battelle Prime Contract No. DE-AC05-00OR22725. The scope of work involves designing, developing, testing and delivering 4 prototype high voltage to 14V dc-to-dc

279

STATEMENT OF CONSIDERATIONS REQUEST BY ALSTOM ENVIRONMENTAL CONTROL SYSTEMS FOR AN ADVANCE  

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

ALSTOM ENVIRONMENTAL CONTROL SYSTEMS FOR AN ADVANCE ALSTOM ENVIRONMENTAL CONTROL SYSTEMS FOR AN ADVANCE WAIVER OF PATENT RIGHTS TO INVENTIONS MADE UNDER SUBCONTRACT QZ001 UNDER COOPERATIVE AGREEMENT DE-FC26-03NT41986; W(A) 05-004; CH-1268 As set out in the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Alstom Environmental Control Systems (Alstom) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above subject subcontract. The waiver will apply only to inventions made by Alstom employees under the subcontract. Alstom is a subcontractor to ADA Environmental Solutions (ADA-ES). under the subject cooperative agreement. ADA-ES is eligible to retain title to its inventions pursuant to P.L. 96- 517. Referring to item 2 of Alstom's petition, the purpose of the subcontract is to evaluate full-

280

STATEMENT OF CONSIDERATIONS 'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER  

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

'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER 'REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE. COOPERATIVE AGREEMENT NO. DE-FC26-03NT41448; W(A)-03-043, CH1164 The Petit;oner, General Electric Power Systems (GEPS), was awarded this cooperative agreement for the performance of work entitled, "Enabling and Information Technology to Increase RAM for Advanced Power Plants" The purpose of the cooperative agreement is to develop, validate and accelerate the commercial use of enabling technologies for coal/Integratec Gasification Combined Cycle (IGCC) powerplant condition assessment and condition based maintenance. The purpose of condition assessment is the real-time, automatic extraction of useful information from operating

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Advanced LWR Nuclear Fuel Cladding System Development Trade-off Study |  

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

LWR Nuclear Fuel Cladding System Development Trade-off LWR Nuclear Fuel Cladding System Development Trade-off Study Advanced LWR Nuclear Fuel Cladding System Development Trade-off Study The LWR Sustainability (LWRS) Program activities must support the timeline dictated by utility life extension decisions to demonstrate a lead test rod in a commercial reactor within 10 years. In order to maintain the demanding development schedule that must accompany this aggressive timeline, the LWRS Program focuses on advanced fuel cladding systems that retain standard UO2 fuel pellets for deployment in currently operating LWR power plants. The LWRS work scope focuses on fuel system components outside of the fuel pellet, allowing for alteration of the existing zirconium-based clad system through coatings, addition of ceramic sleeves, or complete replacement

282

Thermodynamic and economic evaluations of a geothermal district heating system using advanced exergy-based methods  

Science Journals Connector (OSTI)

Abstract In this paper, a geothermal district heating system (GDHS) is comparatively evaluated in terms of thermodynamic and economic aspects using advanced exergy-based methods to identify the potential for improvement, the interactions among system components, and the direction and potential for energy savings. The actual operational data are taken from the Sarayky GDHS, Turkey. In the advanced exergetic and exergoeconomic analyses, the exergy destruction and the total operating cost within each component of the system are split into endogenous/exogenous and unavoidable/avoidable parts. The advantages of these analyses over conventional ones are demonstrated. The results indicate that the advanced exergy-based method is a more meaningful and effective tool than the conventional one for system performance evaluation. The exergetic efficiency and the exergoeconomic factor of the overall system for the Sarayky GDHS were determined to be 43.72% and 5.25% according to the conventional tools and 45.06% and 12.98% according to the advanced tools. The improvement potential and the total cost-savings potential of the overall system were also determined to be 2.98% and 14.05%, respectively. All of the pumps have the highest improvement potential and total cost-savings potential because the pumps were selected to have high power during installation at the Sarayky GDHS.

Mehmet Tan; Ali Keeba?

2014-01-01T23:59:59.000Z

283

Immune System's Fat Problem Solved | Advanced Photon Source  

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

Getting to the Core of Luminescent Nanowires Getting to the Core of Luminescent Nanowires Giant Magnetocaloric Materials Could Have Large Impact on the Environment Tracking the Origins of Fossil Fuels Tailoring the Properties of Magnetic Nanostructures X-ray Holograms Expose Secret Magnetism Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Immune System's Fat Problem Solved JUNE 22, 2007 Bookmark and Share Footprint of the NKT TCR on the surface of human CD1d. © 2007 Nature Publishing Group Understanding how the human immune system functions helps science develop pharmaceuticals to combat disease. We now have new information on this process, thanks to scientists from Monash University and the University of

284

Testing of Passive Safety System Performance for Higher Power Advanced Reactors  

SciTech Connect (OSTI)

This report describes the results of NERI research on the testing of advanced passive safety performance for the Westinghouse AP1000 design. The objectives of this research were: (a) to assess the AP1000 passive safety system core cooling performance under high decay power conditions for a spectrum of breaks located at a variety of locations, (b) to compare advanced thermal hydraulic computer code predictions to the APEX high decay power test data and (c) to develop new passive safety system concepts that could be used for Generation IV higher power reactors.

brian G. Woods; Jose Reyes, Jr.; John Woods; John Groome; Richard Wright

2004-12-31T23:59:59.000Z

285

Advanced Controls for Residential Whole-House Ventilation Systems  

SciTech Connect (OSTI)

Whole-house ventilation systems are becoming commonplace in new construction, remodeling/renovation, and weatherization projects, driven by combinations of specific requirements for indoor air quality (IAQ), health and compliance with standards, such as ASHRAE 62.2. Ventilation systems incur an energy penalty on the home via fan power used to drive the airflow, and the additional space-conditioning load associated with heating or cooling the ventilation air. Finding a balance between IAQ and energy use is important if homes are to be adequately ventilated while not increasing the energy burden. This study used computer simulations to examine RIVEC the Residential Integrated Ventilation Controller - a prototype ventilation controller that aims to deliver whole-house ventilation rates that comply with ventilation standards, for the minimum use of energy. Four different whole-house ventilation systems were simulated, both with and without RIVEC, so that the energy and IAQ results could be compared. Simulations were conducted for 13 US climate zones, three house designs, and three envelope leakage values. The results showed that the RIVEC controller could typically return ventilation energy savings greater than 40percent without compromising long-term chronic or short-term acute exposures to relevant indoor contaminants. Critical and average peak power loads were also reduced as a consequence of using RIVEC.

Turner, William; Walker, Iain; Sherman, Max

2014-08-01T23:59:59.000Z

286

Final report on LDRD project : advanced optical trigger systems.  

SciTech Connect (OSTI)

Advanced optically-activated solid-state electrical switch development at Sandia has demonstrated multi-kA/kV switching and the path for scalability to even higher current/power. Realization of this potential requires development of new optical sources/switches based on key Sandia photonic device technologies: vertical-cavity surface-emitting lasers (VCSELs) and photoconductive semiconductor switch (PCSS) devices. The key to increasing the switching capacity of PCSS devices to 5kV/5kA and higher is to distribute the current in multiple parallel line filaments triggered by an array of high-brightness line-shaped illuminators. Commercial mechanically-stacked edge-emitting lasers have been used to trigger multiple filaments, but they are difficult to scale and manufacture with the required uniformity. In VCSEL arrays, adjacent lasers utilize identical semiconductor material and are lithographically patterned to the required dimensions. We have demonstrated multiple-line filament triggering using VCSEL arrays to approximate line generation. These arrays of uncoupled circular-aperture VCSELs have fill factors ranging from 2% to 30%. Using these arrays, we have developed a better understanding of the illumination requirements for stable triggering of multiple-filament PCSS devices. Photoconductive semiconductor switch (PCSS) devices offer advantages of high voltage operation (multi-kV), optical isolation, triggering with laser pulses that cannot occur accidentally in nature, low cost, high speed, small size, and radiation hardness. PCSS devices are candidates for an assortment of potential applications that require multi-kA switching of current. The key to increasing the switching capacity of PCSS devices to 5kV/5kA and higher is to distribute the current in multiple parallel line filaments triggered by an array of high-brightness line-shaped illuminators. Commercial mechanically-stacked edge-emitting lasers have been demonstrated to trigger multiple filaments, but they are difficult to scale and manufacture with the required uniformity. As a promising alternative to multiple discrete edge-emitting lasers, a single wafer of vertical-cavity surface-emitting lasers (VCSELs) can be lithographically patterned to achieve the desired layout of parallel line-shaped emitters, in which adjacent lasers utilize identical semiconductor material and thereby achieve a degree of intrinsic optical uniformity. Under this LDRD project, we have fabricated arrays of uncoupled circular-aperture VCSELs to approximate a line-shaped illumination pattern, achieving optical fill factors ranging from 2% to 30%. We have applied these VCSEL arrays to demonstrate single and dual parallel line-filament triggering of PCSS devices. Moreover, we have developed a better understanding of the illumination requirements for stable triggering of multiple-filament PCSS devices using VCSEL arrays. We have found that reliable triggering of multiple filaments requires matching of the turn-on time of adjacent VCSEL line-shaped-arrays to within approximately 1 ns. Additionally, we discovered that reliable triggering of PCSS devices at low voltages requires more optical power than we obtained with our first generation of VCSEL arrays. A second generation of higher-power VCSEL arrays was designed and fabricated at the end of this LDRD project, and testing with PCSS devices is currently underway (as of September 2008).

Roose, Lars D.; Hadley, G. Ronald; Mar, Alan; Serkland, Darwin Keith; Geib, Kent Martin; Sullivan, Charles Thomas; Keeler, Gordon Arthur; Bauer, Thomas M. (LMATA Government Services, LLC., Albuquerque, NM); Peake, Gregory Merwin; Loubriel, Guillermo Manuel; Montano, Victoria A. (LMATA Government Services, LLC., Albuquerque, NM)

2008-09-01T23:59:59.000Z

287

High resolution schemes for conservation laws in simulation of injection systems  

E-Print Network [OSTI]

structure consisting of several complicated subsystems [2]. A simpli#12;ed model of a gasoline injection of the conservation laws as an evolution equation for cell averages in the #12;nite volume discretization appears the injection process in order to save fuel, to optimize the combustion process and to replace unreasonable

Soatto, Stefano

288

Specializing Cache Structures for High Performance and Energy Conservation in Embedded Systems  

E-Print Network [OSTI]

. In applica- tions with small heap footprints, we save about 85% of the total cache energy. In the remaining data, achieving an energy savings of 80%. 1 Introduction Energy conservation continues to grow's usage char- acteristics provides many potential benefits: faster access times, lower energy con

McKee, Sally A.

289

Advanced coal-fueled gas turbine systems. Final report  

SciTech Connect (OSTI)

The configuration of the subscale combustor has evolved during the six years of this program from a system using only an impact separator to remove particulates to a system which also included a slagging cyclone separator before the lean-quench combustor. The system also now includes active slag tapping after the impact separator rather than a bucket to collect the slag. The subscale 12 MM Btu/hr (higher heating value, HHV) slagging combustor has demonstrated excellent coal-fired operation at 6 atm. The combustor has fired both coal-water mixtures (CWM) and pulverized coal (PC). Three Wyoming subbituminous coals and two bituminous coals have been successfully fired in the TVC. As a result of this active testing, the following conclusions may be drawn: (1) it was possible to achieve the full design thermal capacity of 12 MM Btu/hr with the subscale slagging combustor, while burning 100% pulverized coal and operating at the design pressure of 6 atm; (2) because of the separate-chamber, rich-lean design of the subscale slagging combustor, NO{sub x} emissions that easily meet the New Source Performance Standards (NSPS) limits were achieved; (3) carbon burnout efficiency was in excess of 99% when 100% coal-fired; (4) ninety percent of the ash can be separated as slag in the impact separator, and a total 98 to 99% removed with the addition of the slagging cyclone separator; (5) Objectives for third-stage exit temperature (1850{degrees}F), and exit temperature pattern factor (14%) were readily achieved; (6) overall pressure loss is currently an acceptable 5 to 6% without cyclone separator and 7 to 9% with the cyclone; and (7) feeding pulverized coal or sorbent into the combustor against 6 atm pressure is achievable.

Not Available

1993-08-01T23:59:59.000Z

290

Production process for advanced space satellite system cables/interconnects.  

SciTech Connect (OSTI)

This production process was generated for the satellite system program cables/interconnects group, which in essences had no well defined production process. The driver for the development of a formalized process was based on the set backs, problem areas, challenges, and need improvements faced from within the program at Sandia National Laboratories. In addition, the formal production process was developed from the Master's program of Engineering Management for New Mexico Institute of Mining and Technology in Socorro New Mexico and submitted as a thesis to meet the institute's graduating requirements.

Mendoza, Luis A.

2007-12-01T23:59:59.000Z

291

Fluidized-Bed Waste-Heat Recovery System Advances  

E-Print Network [OSTI]

ACCESS DOOR (TYPICAL) 1.. LEVEL . PUTFORII ?n'if~~??? FLUIDIZED L--lJ FLUE ';:S ! "'D I DUCT , PRQVISK>N FOR 14" I.P.S. : FLUE GAS . LFr UN! J-~DU~C~T~CL!:!:E~ANO~UT~? RE~':aL:"-~L_--WL:!:!J~~~=:IAIR 1." I.P.S. PREHEATED COMBUSTION AIR... of six months. Data gathered will be used to evaluate performance, energy savings. and economic attractiveness of the FBWHR system. ACKNOWLEDGEMENT This work was jointly funded by the Depart ment of Energy and Thermo Electron Corporation...

Patch, K. D.; Cole, W. E.

292

ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION  

SciTech Connect (OSTI)

The exploration of planetary surfaces and atmospheres may be enhanced by increasing the range and mobility of a science platform. Fundamentally, power production and availability of resources are limiting factors that must be considered for all science and exploration missions. A novel power and propulsion system is considered and discussed with reference to a long-range Mars surface exploration mission with in-situ resource utilization. Significance to applications such as sample return missions is also considered. Key material selections for radioisotope encapsulation techniques are presented.

R. C. O'Brien; S. D. Howe; J. E. Werner

2010-09-01T23:59:59.000Z

293

DOE/NETL ADVANCED COMBUSTION SYSTEMS: CHEMICAL LOOPING SUMMARY  

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

COMBUSTION SYSTEMS: CHEMICAL LOOPING SUMMARY JULY 2013 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal li- ability or responsibility for the accuracy, completeness, or useful- ness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommenda-

294

An experimental system for advanced heating, ventilating and air conditioning (HVAC) control  

Science Journals Connector (OSTI)

While having the potential to significantly improve heating, ventilating and air conditioning (HVAC) system performance, advanced (e.g., optimal, robust and various forms of adaptive) controllers have yet to be incorporated into commercial systems. Controllers consisting of distributed proportional-integral (PI) control loops continue to dominate commercial HVAC systems. Investigation into advanced HVAC controllers has largely been limited to proposals and simulations, with few controllers being tested on physical systems. While simulation can be insightful, the only true means for verifying the performance provided by HVAC controllers is by actually using them to control an HVAC system. The construction and modeling of an experimental system for testing advanced HVAC controllers, is the focus of this article. A simple HVAC system, intended for controlling the temperature and flow rate of the discharge air, was built using standard components. While only a portion of an overall HVAC system, it is representative of a typical hot water to air heating system. In this article, a single integrated environment is created that is used for data acquisition, controller design, simulation, and closed loop controller implementation and testing. This environment provides the power and flexibility needed for rapid prototyping of various controllers and control design methodologies.

Michael Anderson; Michael Buehner; Peter Young; Douglas Hittle; Charles Anderson; Jilin Tu; David Hodgson

2007-01-01T23:59:59.000Z

295

CS 525: Advanced Database Organization Study of relational, semantic, and object-oriented data models and interfaces. Database management system  

E-Print Network [OSTI]

History of database management. Goals of database system development. Relational systems Data modelsCS 525: Advanced Database Organization Objectives Study of relational, semantic, and object-oriented data models and interfaces. Database management system techniques for query optimization, concurrency

Heller, Barbara

296

Advanced LWR Nuclear Fuel Cladding System Development Trade-Off Study  

SciTech Connect (OSTI)

The Advanced Light Water Reactor (LWR) Nuclear Fuel Development Research and Development (R&D) Pathway encompasses strategic research focused on improving reactor core economics and safety margins through the development of an advanced fuel cladding system. To achieve significant operating improvements while remaining within safety boundaries, significant steps beyond incremental improvements in the current generation of nuclear fuel are required. Fundamental improvements are required in the areas of nuclear fuel composition, cladding integrity, and the fuel/cladding interaction to allow power uprates and increased fuel burn-up allowance while potentially improving safety margin through the adoption of an accident tolerant fuel system that would offer improved coping time under accident scenarios. With a development time of about 20 25 years, advanced fuel designs must be started today and proven in current reactors if future reactor designs are to be able to use them with confidence.

Kristine Barrett; Shannon Bragg-Sitton

2012-09-01T23:59:59.000Z

297

STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS, LLC (DELPHI) FOR AN ADVANCE  

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

SYSTEMS, LLC (DELPHI) FOR AN ADVANCE SYSTEMS, LLC (DELPHI) FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE AWARD NO. DE-EE0005342; W(A) 2011-064 DELPHI has requested a waiver of domestic and foreign patent rights of the United States of America in all subject inventions arising from its pm1icipation under the above referenced cooperative agreement entitled "Cascaded Micro Inverter System for Reduced Costs." ·1 he cooperative agreement was made under the Solar Energy Grid Integration Systems- Advsystem costs, allow high penetrations of solar

298

Plants' Rapid Response System Revealed | Advanced Photon Source  

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

Rewriting the Organofluorine Playbook Rewriting the Organofluorine Playbook Computer-Designed Proteins to Disarm a Variety of Flu Viruses Driving Membrane Curvature Unlocking the Nanoscale Secrets of Bird-Feather Colors An Unlikely Route to Ferroelectricity Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Plants' Rapid Response System Revealed JULY 6, 2012 Bookmark and Share Images of several related proteins made at synchrotrons in the U.S. and France have allowed scientists at Washington University in St. Louis and the European Molecular Biology Laboratory in Grenoble, France, to solve the structure of a key piece of the biochemical machinery that allows plants to control the concentrations of circulating hormones. WUSTL graduate student

299

Advanced Turbine System (ATS): Task 1, System scoping and feasibility study  

SciTech Connect (OSTI)

Present GT(Gas Turbine) Systems are available to achieve 52% (LHV) thermal efficiencies, plants in construction will be capable of 54%, and the goal of this study is to identify incentives, technical issues, and resource requirements to develop natural gas-and coal-compatible ATS which would have a goal of 60% or greater based on LHV. The prime objective of this project task is to select a natural gas-fired ATS (Advanced Turbine System) that could be manufactured and marketed should development costs not be at issue with the goals of: (1) Coal of electricity 10% below 1991 vintage power plants in same market class and size. (2) Expected performance 60% efficiency and higher, (3) Emission levels, NO[sub x] < 10 ppM (0.15 lb/MW-h), CO < 20 ppM (0.30 lb/MW-h), and UHC < 20 ppM (0.30 lb/MW-h). ABB screening studies have identified the gas-fueled combined cycle as the most promising full scale solution to achieve the set goals for 1988--2002. This conclusion is based on ABB's experience level, as well as the multi-step potential of the combined cycle process to improve in many component without introducing radical changes that might increase costs and lower RAM. The technical approach to achieve 60% or better thermal efficiency will include increased turbine inlet temperatures, compressor intercooling, as well a improvements in material, turbine cooling technology and the steam turbine. Use of improved component efficiencies will achieve gas-fired cycle performance of 61.78%. Conversion to coal-firing will result in system performance of 52.17%.

van der Linden, S.

1993-02-01T23:59:59.000Z

300

Advanced Turbine System (ATS): Task 1, System scoping and feasibility study. Final report  

SciTech Connect (OSTI)

Present GT(Gas Turbine) Systems are available to achieve 52% (LHV) thermal efficiencies, plants in construction will be capable of 54%, and the goal of this study is to identify incentives, technical issues, and resource requirements to develop natural gas-and coal-compatible ATS which would have a goal of 60% or greater based on LHV. The prime objective of this project task is to select a natural gas-fired ATS (Advanced Turbine System) that could be manufactured and marketed should development costs not be at issue with the goals of: (1) Coal of electricity 10% below 1991 vintage power plants in same market class and size. (2) Expected performance 60% efficiency and higher, (3) Emission levels, NO{sub x} < 10 ppM (0.15 lb/MW-h), CO < 20 ppM (0.30 lb/MW-h), and UHC < 20 ppM (0.30 lb/MW-h). ABB screening studies have identified the gas-fueled combined cycle as the most promising full scale solution to achieve the set goals for 1988--2002. This conclusion is based on ABB`s experience level, as well as the multi-step potential of the combined cycle process to improve in many component without introducing radical changes that might increase costs and lower RAM. The technical approach to achieve 60% or better thermal efficiency will include increased turbine inlet temperatures, compressor intercooling, as well a improvements in material, turbine cooling technology and the steam turbine. Use of improved component efficiencies will achieve gas-fired cycle performance of 61.78%. Conversion to coal-firing will result in system performance of 52.17%.

van der Linden, S.

1993-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Vacuum system for the LBL advanced light source (ALS)  

SciTech Connect (OSTI)

A 1.5 to 1.9 GeV synchrotron light source is being built at LBL. The vacuum system is designed to permit all synchrotron photons on the median plane to escape the electron channel and go into an antechamber through a 10 mm high slot. This slot offers effective RF isolation between the electron duct and the antechamber. All unused synchrotron photons within a few mrad of the median plane will be stopped by 96 nearly horizontal absorbers located in the antechamber. The gas, generated by the photons hitting the absorbers, will be directed down to reactive titanium surfaces. Twelve 10 meter long vessels constitute the vacuum chambers for all the lattice magnets. Each chamber will be machined from two thick plates of 5083-H321 aluminum and welded at the perimeter. The nominal wall thickness of the vacuum chamber is 40 mm, which makes it possible to machine a flange into the chamber without the use of welding. 5 refs., 5 figs.

Kennedy, K.

1988-05-01T23:59:59.000Z

302

A Planning, Scheduling and Control Architecture for Advanced Life Support Systems  

E-Print Network [OSTI]

A Planning, Scheduling and Control Architecture for Advanced Life Support Systems V. Jorge Leon 77058 Abstract This paper describes an integrated planning, schedul- ing and control architecture and the requirements for plan- ning, scheduling and control architectures are pre- sented. Next, the main components

Kortenkamp, David

303

Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck  

E-Print Network [OSTI]

diesel engine, an electric motor, a Lithium-Ion battery, and an Eaton automated manual transmission03TB-45 Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck and vehicle test results for a medium-duty hybrid electric truck are reported in this paper. The design

Grizzle, Jessy W.

304

Effectiveness of advanced coating systems for mitigating blast effects on steel components  

E-Print Network [OSTI]

Effectiveness of advanced coating systems for mitigating blast effects on steel components C. Chen1 tool for steel components. The response of polyurea coated steel components under blast loading of polyurea onto armor grade steel plates and an examination of resulting failure modes and governing design

305

BioSim: An Integrated Simulation of an Advanced Life Support System for Intelligent Control Research  

E-Print Network [OSTI]

waste heat. · Waste: collects and conditions waste material from anywhere in the vehicle revitalization, water recovery, food production, solid waste processing and the crew. The goal of autonomously acceptable food, and managing wastes. A typical advanced life support system consists of the following

Kortenkamp, David

306

Electric Arc Locator in Photovoltaic Power Systems Using Advanced Signal Processing Techniques  

E-Print Network [OSTI]

in detecting the partial discharges associated with the production of an electric arc in a high voltage power in fault detection and localization. In [1] we have shown that electric arc (or partial dischargeElectric Arc Locator in Photovoltaic Power Systems Using Advanced Signal Processing Techniques

Paris-Sud XI, Université de

307

Advanced High Energy and High Power Battery Systems for Automotive Applications Khalil Amine  

E-Print Network [OSTI]

Geothermal 2.5 Wind 0.22 Solar 0.02 Coal 110 Natural Gas 107 Residential 50 Vehicle 39 Freight 40 Air 129.30am Advanced High Energy and High Power Battery Systems for Automotive Applications Khalil Amine electric drive Plug in Hybrid Electric Vehicle (P-HEVs), long range electric vehi cle (EV) and sm art grid

Levi, Anthony F. J.

308

STATEMENT OF CONSIDERATIONS REQUEST BY HYBRID POWER GENERATION SYSTEMS, LLC, FOR AN ADVANCE  

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

AN ADVANCE AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC26-01NT40779; W(A)-03-015, CH-1142 The Petitioner, Hybrid Power Generation Systems, LLC, a wholly owned subsidiary of General Electric Company (GE HPGS), was awarded this cooperative agreement for the performance of work entitled, "Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation". The purpose of the cooperative agreement is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The proposed hybrid system is based on planar SOFC and turbogenerator power technologies. The focus of this work is to test a sub-scale SOFC and turbocharger hybrid

309

Advanced turbine systems program. Final report, August 3, 1993--August 31, 1996  

SciTech Connect (OSTI)

Six tasks were approved under the Advanced Turbine Systems (ATS) extension program. The six tasks include the following: Task 5.0 -- Market Study. The objective of the market study task is to focus on distributed generation prospects for an industrial ATS, using the Allison ATS family as the primary gas turbine systems. Task 6.0 -- Gas Fired Advanced Turbine System (GFATS) Definition and Analysis. Task 8.01 -- Castcool{reg_sign} Blades Fabrication Process Development. Task 8.04 -- ATS Low Emission Combustion System. Task 8.07 -- Ceramic Vane Design and Evaluation. Task 9.0 -- Program Management. Each of these tasks is described, progress is discussed, and results are given.

NONE

1996-12-31T23:59:59.000Z

310

ADVANCED SOLID STATE SENSORS FOR VISION 21 SYSTEMS  

SciTech Connect (OSTI)

Silicon carbide (SiC) is a high temperature semiconductor with the potential to meet the gas and temperature sensor needs in both present and future power generation systems. These devices have been and are currently being investigated for a variety of high temperature sensing applications. These include leak detection, fire detection, environmental control, and emissions monitoring. Electronically these sensors can be very simple Schottky diode structures that rely on gas-induced changes in electrical characteristics at the metal-semiconductor interface. In these devices, thermal stability of the interfaces has been shown to be an essential requirement for improving and maintaining sensor sensitivity and lifetime. In this report, we describe device fabrication and characterization studies relevant to the development of SiC based gas and temperature sensors. Specifically, we have investigated the use of periodically stepped surfaces to improve the thermal stability of the metal semiconductor interface for simple Pd-SiC Schottky diodes. These periodically stepped surfaces have atomically flat terraces on the order of 200 nm wide separated by steps of 1.5 nm height. It should be noted that 1.5 nm is the unit cell height for the 6H-SiC (0001) substrates used in these studies. These surfaces contrast markedly with the ''standard'' SiC surfaces normally used in device fabrication. Obvious scratches and pots as well as subsurface defects characterize these standard surfaces. This research involved ultrahigh vacuum deposition and characterization studies to investigate the thermal stability of Pd-SiC Schottky diodes on both the stepped and standard surfaces, high temperature electrical characterization of these device structures, and high temperature electrical characterization of diodes under wet and dry oxidizing conditions. To our knowledge, these studies have yielded the first electrical characterization of actual sensor device structures fabricated under ultrahigh vacuum conditions. The results demonstrate that the Pd-SiC interfaces formed on the stepped surface are remarkably stable at temperatures up to 670 C and that there is a definite improvement in the electrical characteristics. This temperature, though lower than DOE target temperatures is still 100 C higher than that used in reported field studies. The Pd films studied here ranged in thickness from the monolayer level ({approx}0.4 nm) to actual device dimensions ({approx}46.5 nm) and are deposited under ultrahigh vacuum conditions at {approx}50 C. The films were characterized in-situ using Auger electron spectroscopy both before and after annealing at 670 C. The Auger lineshapes were used to provide quantitative information on the chemistry of the reaction products. Ex-situ atomic force microscopy was used to characterize changes in surface morphology. Current-voltage (I-V) measurements were made as a function of temperature to further characterize the devices. Additional studies were performed to gain an understanding of the effects of wet and dry oxidizing environments on device performance. These measurements were performed for temperatures up to 325 C, the highest temperature attainable with our current apparatus. Our results clearly show a significant benefit in thermal stability and electrical characteristics associated with the stepped surface. These results are quite promising but much development and testing work remains to be done.

C.D. Stinespring

2005-04-28T23:59:59.000Z

311

Advanced Materials for PEM-Based Fuel Cell Systems  

SciTech Connect (OSTI)

Proton exchange membrane fuel cells (PEMFCs) are quickly becoming attractive alternative energy sources for transportation, stationary power, and small electronics due to the increasing cost and environmental hazards of traditional fossil fuels. Two main classes of PEMFCs include hydrogen/air or hydrogen/oxygen fuel cells and direct methanol fuel cells (DMFCs). The current benchmark membrane for both types of PEMFCs is Nafion, a perfluorinated sulfonated copolymer made by DuPont. Nafion copolymers exhibit good thermal and chemical stability, as well as very high proton conductivity under hydrated conditions at temperatures below 80 ???????????????????????????????°C. However, application of these membranes is limited due to their high methanol permeability and loss of conductivity at high temperatures and low relative humidities. These deficiencies have led to the search for improved materials for proton exchange membranes. Potential PEMs should have good thermal, hydrolytic, and oxidative stability, high proton conductivity, selective permeability, and mechanical durability over long periods of time. Poly(arylene ether)s, polyimides, polybenzimidazoles, and polyphenylenes are among the most widely investigated candidates for PEMs. Poly(arylene ether)s are a promising class of proton exchange membranes due to their excellent thermal and chemical stability and high glass transition temperatures. High proton conductivity can be achieved through post-sulfonation of poly(arylene ether) materials, but this most often results in very high water sorption or even water solubility. Our research has shown that directly polymerized poly(arylene ether) copolymers show important advantages over traditional post-sulfonated systems and also address the concerns with Nafion membranes. These properties were evaluated and correlated with morphology, structure-property relationships, and states of water in the membranes. Further improvements in properties were achieved through incorporation of inorganic fillers, such as phosphotungstic acid and zirconium hydrogen phosphate. Block copolymers were also studied due to the possibility to achieve a desired combination of homopolymer properties as well as the unique morphologies that are possible with block copolymers. Bezoyl substituted poly(p-phenylene) blocks were combined with poly(arylene ether) blocks to merge the structural rigidity of the poly(p-phenylene) with the ductility and high protonic conductivity of the poly(arylene ether)s. As evidenced by our many refereed publications and preprints, the research that we have conducted over the past several years has made a valuable and significant contribution to the literature and to the state of understanding of proton exchange membranes. Our early efforts at scale-up have suggested that the directly polymerized disulfonated poly(arylene ether sulfone) copolymers are commercially viable alternatives for proton exchange membranes. A new process for bipolar plates was developed and is described. An important single domain PEMFC model was developed and is documented in this final report.

James E. McGrath

2005-10-26T23:59:59.000Z

312

Advanced Materials for PEM-Based Fuel Cell Systems  

SciTech Connect (OSTI)

Proton exchange membrane fuel cells (PEMFCs) are quickly becoming attractive alternative energy sources for transportation, stationary power, and small electronics due to the increasing cost and environmental hazards of traditional fossil fuels. Two main classes of PEMFCs include hydrogen/air or hydrogen/oxygen fuel cells and direct methanol fuel cells (DMFCs). The current benchmark membrane for both types of PEMFCs is Nafion, a perfluorinated sulfonated copolymer made by DuPont. Nafion copolymers exhibit good thermal and chemical stability, as well as very high proton conductivity under hydrated conditions at temperatures below 80 degrees C. However, application of these membranes is limited due to their high methanol permeability and loss of conductivity at high temperatures and low relative humidities. These deficiencies have led to the search for improved materials for proton exchange membranes. Potential PEMs should have good thermal, hydrolytic, and oxidative stability, high proton conductivity, selective permeability, and mechanical durability over long periods of time. Poly(arylene ether)s, polyimides, polybenzimidazoles, and polyphenylenes are among the most widely investigated candidates for PEMs. Poly(arylene ether)s are a promising class of proton exchange membranes due to their excellent thermal and chemical stability and high glass transition temperatures. High proton conductivity can be achieved through post-sulfonation of poly(arylene ether) materials, but this most often results in very high water sorption or even water solubility. Our research has shown that directly polymerized poly(arylene ether) copolymers show important advantages over traditional post-sulfonated systems and also address the concerns with Nafion membranes. These properties were evaluated and correlated with morphology, structure-property relationships, and states of water in the membranes. Further improvements in properties were achieved through incorporation of inorganic fillers, such as phosphotungstic acid and zirconium hydrogen phosphate. Block copolymers were also studied due to the possibility to achieve a desired combination of homopolymer properties as well as the unique morphologies that are possible with block copolymers. Bezoyl substituted poly(p-phenylene) blocks were combined with poly(arylene ether) blocks to merge the structural rigidity of the poly(p-phenylene) with the ductility and high protonic conductivity of the poly(arylene ether)s. As evidenced by our many refereed publications and preprints, the research that we have conducted over the past several years has made a valuable and significant contribution to the literature and to the state of understanding of proton exchange membranes. Our early efforts at scale-up have suggested that the directly polymerized disulfonated poly(arylene ether sulfone) copolymers are commercially viable alternatives for proton exchange membranes. A new process for bipolar plates was developed and is described. An important single domain PEMFC model was developed and is documented in herein.

James E. McGrath; Donald G. Baird; Michael von Spakovsky

2005-10-26T23:59:59.000Z

313

Annual Report: Advanced Energy Systems Fuel Cells (30 September 2013)  

SciTech Connect (OSTI)

The comprehensive research plan for Fuel Cells focused on Solid State Energy Conversion Alliance (SECA) programmatic targets and included objectives in two primary and focused areas: (1) investigation of degradation modes exhibited by the anode/electrolyte/cathode (AEC), development of computational models describing the associated degradation rates, and generation of a modeling tool predicting long term AEC degradation response; and (2) generation of novel electrode materials and microstructures and implementation of the improved electrode technology to enhance performance. In these areas, the National Energy Technology Laboratory (NETL) Regional University Alliance (RUA) team has completed and reported research that is significant to the SECA program, and SECA continued to engage all SECA core and SECA industry teams. Examination of degradation in an operational solid oxide fuel cell (SOFC) requires a logical organization of research effort into activities such as fundamental data gathering, tool development, theoretical framework construction, computational modeling, and experimental data collection and validation. Discrete research activity in each of these categories was completed throughout the year and documented in quarterly reports, and researchers established a framework to assemble component research activities into a single operational modeling tool. The modeling framework describes a scheme for categorizing the component processes affecting the temporal evolution of cell performance, and provides a taxonomical structure of known degradation processes. The framework is an organizational tool that can be populated by existing studies, new research completed in conjunction with SECA, or independently obtained. The Fuel Cell Team also leveraged multiple tools to create cell performance and degradation predictions that illustrate the combined utility of the discrete modeling activity. Researchers first generated 800 continuous hours of SOFC experimental data capturing operational degradation. The data were matched by a 3D multi-physics simulation of SOFC operational performance assuming that the entire performance loss related to coarsening of the cathode triple phase boundary (3PB). The predicted 3PB coarsening was then used to tune the mobility parameters of a phase field model describing microstructural evolution of the lanthanum strontium manganate (LSM)/ yttria stabilized zirconia (YSZ) system. Once calibrated, the phase field model predicted continuous microstructural coarsening processes occurring over the operating period, which could be extrapolated to performance periods of longer duration and also used to produce 3D graphical representations. NETL researchers also completed significant electrode engineering research complimented by 3D multi-physics simulations. In one key activity researchers generated an illustration demonstrating that control of infiltrate deposition can provide cell manufacturers with significant additional operational and engineering control over the SOFC stack. Specifically, researchers demonstrated that by engineering the deposition of electrocatalyst inside the cathode, the distribution of overpotential across the cell could be controlled to either decrease the average cell overpotential value or minimize cross-cell overpotential gradient. Results imply that manufacturers can establish improved engineering control over stack operation by implementing infiltration technology in SOFC cathodes.

Gerdes, Kirk; Richards, George

2014-04-16T23:59:59.000Z

314

An advanced economizer controller for dual-duct air-handling systems -- with a case application  

SciTech Connect (OSTI)

A heating penalty is expected when economizers are applied to dual-duct air-handling systems. The heating penalty can be even higher than the cooling savings when the hot airflow is higher than the cold airflow. To avoid the excessive heating penalty, advanced economizers are developed in this paper. The application of the advanced economizer has resulted in savings of $7,000/yr in one 95,000-ft{sup 2} (8,800-m{sup 2}) school building since 1993. The impacts of cold and hot deck settings on the energy consumption are also discussed.

Liu, M.; Claridge, D.E. [Texas A and M Univ., College Station, TX (United States). Mechanical Engineering Dept.; Park, B.Y. [Engineering Education Inst., Inchon (Korea, Republic of). Dept. of Architectural Engineering

1997-12-31T23:59:59.000Z

315

MnDRIVE Minnesota Discovery Research and InnoVation Economy Funding Program MnDRIVE: Advancing industry, conserving our environment  

E-Print Network [OSTI]

industry, conserving our environment Goal Apply research-based new technology to solve environmental impact of upcoming mining projects in northern Minnesota · Microbial bioremediation renders wastes in fracking for recovery of natural gas from shale · Microbial remediation provides solutions for currently

Blanchette, Robert A.

316

Proceedings of the coal-fired power systems 94: Advances in IGCC and PFBC review meeting. Volume 1  

SciTech Connect (OSTI)

The Coal-Fired Power Systems 94 -- Advances in IGCC and PFBC Review Meeting was held June 21--23, 1994, at the Morgantown Energy Center (METC) in Morgantown, West Virginia. This Meeting was sponsored and hosted by METC, the Office of Fossil Energy, and the US Department of Energy (DOE). METC annually sponsors this conference for energy executives, engineers, scientists, and other interested parties to review the results of research and development projects; to discuss the status of advanced coal-fired power systems and future plans with the industrial contractors; and to discuss cooperative industrial-government research opportunities with METC`s in-house engineers and scientists. Presentations included industrial contractor and METC in-house technology developments related to the production of power via coal-fired Integrated Gasification Combined Cycle (IGCC) and Pressurized Fluidized Bed Combustion (PFBC) systems, the summary status of clean coal technologies, and developments and advancements in advanced technology subsystems, such as hot gas cleanup. A keynote speaker and other representatives from the electric power industry also gave their assessment of advanced power systems. This meeting contained 11 formal sessions and one poster session, and included 52 presentations and 24 poster presentations. Volume I contains papers presented at the following sessions: opening commentaries; changes in the market and technology drivers; advanced IGCC systems; advanced PFBC systems; advanced filter systems; desulfurization system; turbine systems; and poster session. Selected papers have been processed separately for inclusion in the Energy Science and Technology Database.

McDaniel, H.M.; Staubly, R.K.; Venkataraman, V.K. [eds.

1994-06-01T23:59:59.000Z

317

Trade-off between collector area, storage volume, and building conservation in annual-storage solar-heating systems  

SciTech Connect (OSTI)

Annual storage is used with active solar heating systems to permit storage of summertime solar heat for winter use. The results of a comprehensive computer simulation study of the performance of active solar heating systems with long-term hot water storage are presented. A unique feature of this study is the investigation of systems used to supply backup heat to passive solar and energy-conserving buildings, as well as to meet standard heating and hot water loads. Findings show that system output increases linearly as storage volume increases, up to the point where the storage tank is large enough to store all heat collected in summer. This point, the point of unconstrained operation, is the likely economic optimum. Unlike diurnal storage systems, annual storage systems show only slightly diminished efficiency as system size increases. Annual storage systems providing nearly 100% solar space heat may cost the same or less per unit heat delivered as a 50% diurnal solar system. Also in contrast to diurnal systems, annual storage systems perform efficiently in meeting the load of a passive or energy-efficient building.

Sillman, S.

1981-04-01T23:59:59.000Z

318

Energy Conservation  

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

Energy Energy Goal 1: Energy Conservation LANL strives to reduce greenhouse gas emissions to meet and surpass Department of Energy goals. The Lab's goal is to reduce emissions from energy use in our facilities and driving vehicles in our fleet by 28 percent. Energy Conservation» Efficient Water Use & Management» High Performance Sustainable Buildings» Greening Transportation» Green Purchasing & Green Technology» Pollution Prevention» Science Serving Sustainability» ENVIRONMENTAL SUSTAINABILITY GOALS at LANL Renewable energy goals: With the newly installed low flow turbine, LANL will be able to meet nearly half of its renewable energy goals for 2013. LANL was one of the original investors in renewable energy through the high flow turbines at Abiquiu Dam. Engineer Campbell of the Abiquiu Dam Facility demonstrates the use of the low flow turbine for electricity generation. The Abiquiu Dam power station's water flow and electrical output is controlled from monitors in Los Alamos. Inside the TA-03 Steam Plant: Replacement or reconfiguration of the 50 year old steam plant and piping system could provide significant energy savings for LANL.

319

Production System Planning for Natural Resource Conservation in a Micro-Watershed  

E-Print Network [OSTI]

Production System Planning for Natural Resource Conservationa case study watershed. Production Systems Planning (PSP) isWatershed Management, Production Systems Planning (PSP)

Ramakrishna, Nallathiga

2003-01-01T23:59:59.000Z

320

White paper for Developing an Advanced Fueling System and for supporting Disruption Mitigation studies for ITER on NSTX-U  

E-Print Network [OSTI]

White paper for Developing an Advanced Fueling System and for supporting 2012) 1/3 White Paper for Developing Advanced Fueling System-mails: raman@aa.washington.edu , Jarboe@aa.washington.edu , nelson@ee.washington.edu This white

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

REQUEST BY MONSANTO ENVIRO-CHEM SYSTEMS, INC., FOR AN ADVANCE WAIVER OF DOMESTIC AND  

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

MONSANTO ENVIRO-CHEM SYSTEMS, MONSANTO ENVIRO-CHEM SYSTEMS, INC., FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER DEPARTMENT OF ENERGY CONTRACT NO. DE-AC05-960R22459; DOE WAIVER DOCKET W(A)-96-007 [ORO-625] Monsanto Enviro-Chem Systems, Inc. (Enviro-Chem) has made a timely request for an advance waiver to worldwide rights in Subject Inventions made in the course of or under Department of Energy (DOE) Contract No. DE-AC05-960R22459. The request includes inventions made under subcontracts with the Monsanto Company (Monsanto), the General Electric Company (GE) and E.I. duPont de Nemours and Company (duPont). The scope of the work calls for the development and demonstration of the use of electroknetics for removing chlorinated hydrocarbons in low

322

STATEMENT OF CONSIDERATIONS REQUEST BY GENERAL ELECTRIC POWER SYSTEMS, FOR AN ADVANCE WAIVER  

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

POWER SYSTEMS, FOR AN ADVANCE WAIVER POWER SYSTEMS, FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVENTION RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC26-03NT41841; W(A)-03-050, CH-1171 The Petitioner, General Electric Power Systems (GEPS), was awarded this cooperative agreement for the performance of work entitled, "High Efficiency Steam Turbines with Ultra Long Buckets". The purpose of the cooperative agreement is to develop, demonstrate, and risk mitigate technology for full-speed, ultra-long steam turbine buckets that will set new industry standards in terms of bucket length, section efficiency, cost effectiveness, and turbine output that will result in improvement on LP Turbine Last Stage Bucket efficiency by as much as 2% to 3%, and Rankine cycle efficiency improvements of up to 0.5%. According to the Statement of Project Objectives,

323

Advanced turbine systems program conceptual design and product development. Annual report, August 1994--July 1995  

SciTech Connect (OSTI)

This report summarizes the tasks completed under this project during the period from August 1, 1994 through July 31, 1994. The objective of the study is to provide the conceptual design and product development plan for an ultra high efficiency, environmentally superior and cost-competitive industrial gas turbine system to be commercialized by the year 2000. The tasks completed include a market study for the advanced turbine system; definition of an optimized recuperated gas turbine as the prime mover meeting the requirements of the market study and whose characteristics were, in turn, used for forecasting the total advanced turbine system (ATS) future demand; development of a program plan for bringing the ATS to a state of readiness for field test; and demonstration of the primary surface recuperator ability to provide the high thermal effectiveness and low pressure loss required to support the proposed ATS cycle.

NONE

1995-11-01T23:59:59.000Z

324

Advanced Systems  

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

Highly Insulating Windows Windows in the United States use approximately 2 quads a year in heating energy, approximately one third of all building space heating energy used and approximately 2% of total US energy consumption. Heating is the largest single end use attributed to windows. Even if all existing windows were replaced with today’s ENERGY STAR low-e products (U values < 0.35 Btu/hr-ft2-F), windows related heating would still be over 1 Quad. Because heating loads are strongly tied to conductive losses, technologies which lead to lower window U-factors are the key to reducing heating energy. In the long term a 0.1 Btu/hr-ft2-F window is targeted as a product, which will meet the requirements of zero-energy homes. Dynamic control of solar gains will further reduce heating needs by allowing winter

325

2014-07-28 Issuance: Energy Conservation Standard for Computer and Battery Backup Systems; Extension of Public Comment Period  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register extension of the public comment period regarding Energy Conservation Standards for Computer and Battery Backup Systems, as issued by the Deputy Assistant Secretary for Energy Efficiency on July 28, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

326

Advanced photovoltaic/hydro hybrid renewable energy system for remote areas  

Science Journals Connector (OSTI)

This paper presents modeling and simulation of the advanced photovoltaic (PV)/hydro based Hybrid Renewable Energy System (HRES) to electrify such isolated/remote areas where grid accessibility is not possible. For 7.5?kW hydro generation system a Self Excited Induction Generator (SEIG) with improved technique is used to optimize the utilization of hydro power. To achieve this aim an uncontrolled bridge rectifier coupled with Hydro side Voltage Source Inverter is implemented for the SEIG based advanced hydro system. The PV system is configured by PV array battery DC/DC converter maximum power point tracking controller and PV side Voltage Source Inverter. A Constant Current Control scheme is developed in this paper to control active and reactive power flow and to synchronize hydro and PV systems. The proposed system uses fewer controlled switches hence complexity of control has been reduced and system has higher efficiency and lower switching losses. The performance analysis of the HRES has been done to authenticate the existence of the system using the MATLAB software and results demonstrate that power quality of the proposed system is better and HRES is able to put into services.

2014-01-01T23:59:59.000Z

327

The Adaptation of the Advanced Hospital Information System Help into the Environment of a German University Hospital  

Science Journals Connector (OSTI)

HELP is an advanced hospital information system, developed at the Latter-Day-Saints-Hospital in Salt Lake City. It is the ... support system in the communication process within the hospital.

J. Dudeck; P. Clayton

1985-01-01T23:59:59.000Z

328

Technical analysis of US Army Weapons Systems and related advanced technologies of military interest. Final report  

SciTech Connect (OSTI)

This report summarizes the activities and accomplishments of an US Army technology security project designed to identify and develop effective policy guidelines for militarily critical technologies in specific Army systems and in broad generic technology areas of military interest, Individual systems analyses are documented in separate Weapons Systems Technical Assessments (WSTAs) and the general generic technology areas are evaluated in the Advanced Technology Assessment Reports (ATARs), However, specific details of these assessments are not addressed here, only recommendations regarding aspects of the defined approach, methodology, and format are provided and discussed.

NONE

1991-06-14T23:59:59.000Z

329

Personnel Safety System for the beamlines at the Advanced Photon Source  

Science Journals Connector (OSTI)

The Personnel Safety System (PSS) at the Advanced Photon Source is a high reliability fail?safe redundant engineered safety system that provides personnel access control to prevent inadvertent entry into experimental stations when hazardous radiation conditions exist and warns personnel of changes in safe operating conditions inside these stations. Single fault tolerant access control is provided by two independent interlock chains implemented via programmable logic controllers (PLCs). Reduction of common mode failures is accomplished by different hardware and software platforms for the two chains. The system design is presented.

J. Hawkins; C. Seaver; J. Stein; J. Stoffel; N. Friedman

1996-01-01T23:59:59.000Z

330

STATEMENT OF CONSIDERATIONS REQUEST BY HYBRID POWER GENERATION SYSTEMS, LLC FOR AN ADVANCE  

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

JRN 19 2006 15:31 FR IPL DOE CH 630 252 2779 TO AGCP-HQ P.02/03 JRN 19 2006 15:31 FR IPL DOE CH 630 252 2779 TO AGCP-HQ P.02/03 * * STATEMENT OF CONSIDERATIONS REQUEST BY HYBRID POWER GENERATION SYSTEMS, LLC FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC36-04G014351 ENTITLED "HIGH PERFORMANCE FLEXIBLE REVERSIBLE SOLID OXIDE FUEL CELL"; W(A)-04-080; CH-1259 As set out in the attached waiver petition and in subsequent discussions with DOE patent counsel, Hybrid Power Generation Systems, LLC (Hybrid Power), a wholly owned subsidiary of General Electric Company (GE), has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified cooperative agreement by its employees and its subcontractors' employees, regardless of tier, except

331

STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS, LLC FOR AN ADVANCE WAIVER  

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

UGCP-HO P.04,-07 UGCP-HO P.04,-07 * * STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS, LLC FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC36- 04G014319 ENTITLED "SOLID OXIDE FUEL CELL DEVELOPMENT FOR AUXILLARY POWER IN HEAVY DUTY VEHICLE APPLICATIONS"; W(A)-04-082; CH-1261 As set out in the attached waiver petition and in subsequent discussions with DOE patent counsel, Delphi Automotive Systems, LLC (Delphi) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above-identified cooperative agreement by its employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L.

332

Design of an advanced electric power distribution systems using seeker optimization algorithm  

Science Journals Connector (OSTI)

Abstract The power distribution network design problem has a growing impact on secure and economical operation of distribution power system. This issue is well known as a non-linear, multi-modal and multi-objective optimization problem where global optimization techniques are required in order to avoid local minima. In this study, a new approach using seeker optimization algorithm (SOA) is proposed for distribution system planning problem with simultaneous placement of automatic reclosers (RAs), considering total system economic cost, overall system reliability, system power losses and voltage deviations as an objective functions. Normally, conventional power distribution systems (CPDS) are radial in nature and momentary fault in the system causes large area of the grid to be blacked out, which leads to huge load interruptions. Reliable distribution system minimize this effect by allowing faults to clear themselves by protection device operations such as automatic reclosers (RAs) and quickly restores the power through system reconfiguration by minimizing the loads affected. Thus, in order to prevent the system from momentary faults, simultaneous placement of \\{RAs\\} has been also done which leads to a design of an advanced power distribution system (APDS). Thus, the reliability issues are of major importance for effective planning of an APDS. For evaluation of reliability measure, the contingency-load-loss index (CLLI) is assessed in this paper, which is independent of the failure rate and fault repair duration of the feeder branches. The performance of the proposed algorithm is extensively assessed and comparisons are made with Particle Swarm Optimization (PSOs), Genetic Algorithm (GA) and graph theoretical approach (GTA) applied on the 54 and 100-bus primary power distribution systems. The simulation results show that the proposed approach performed better than the other listed algorithms and can be efficiently used for the optimal design of an advanced power distribution system.

Deepak Kumar; S.R. Samantaray

2014-01-01T23:59:59.000Z

333

Conservation Laws and Stress-energy-momentum Tensors for Systems with Background Fields  

E-Print Network [OSTI]

This article attempts to delineate the roles played by non-dynamical background structures and Killing symmetries in the construction of stress-energy-momentum tensors generated from a diffeomorphism invariant action density. An intrinsic coordinate independent approach puts into perspective a number of spurious arguments that have historically lead to the main contenders, viz the Belinfante-Rosenfeld stress-energy-momentum tensor derived from a Noether current and the Einstein-Hilbert stress-energy-momentum tensor derived in the context of Einstein's theory of general relativity. Emphasis is placed on the role played by non-dynamical background (phenomenological) structures that discriminate between properties of these tensors particularly in the context of electrodynamics in media. These tensors are used to construct conservation laws in the presence of Killing Lie-symmetric background fields.

Jonathan Gratus; Yuri N. Obukhov; Robin W. Tucker

2012-06-28T23:59:59.000Z

334

Development of Computation Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems  

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

Computation Capabilities Computation Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems Background Staged combustion is a method of reducing nitrogen oxide (NO x ) emissions in boilers by controlling the combustion mixture of air and fuel. Its process conditions are particularly corrosive to lower furnace walls. Superheaters and/or reheaters are often employed in the upper furnace to reuse hot combustion gasses to further raise the

335

Active load management with advanced window wall systems: Research and industry perspectives  

SciTech Connect (OSTI)

Advanced window wall systems have the potential to provide demand response by reducing peak electric loads by 20-30% in many commercial buildings through the active control of motorized shading systems, switchable window coatings, operable windows, and ventilated double-skin facade systems. These window strategies involve balancing daylighting and solar heat gains, heat rejection through ventilation, and night-time natural ventilation to achieve space-conditioning and lighting energy use reductions without the negative impacts on occupants associated with other demand responsive (DR) strategies. This paper explores conceptually how advanced window systems fit into the context of active load management programs, which cause customers to directly experience the time-varying costs of their consumption decisions. Technological options are suggested. We present pragmatic criteria that building owners use to determine whether to deploy such strategies. A utility's perspective is given. Industry also provides their perspectives on where the technology is today and what needs to happen to implement such strategies more broadly in the US. While there is significant potential for these advanced window concepts, widespread deployment is unlikely to occur with business-as-usual practice. Technologically, integrated window-lighting-HVAC products are underdeveloped. Implementation is hindered by fragmented labor practices, non-standard communication protocols, and lack of technical expertise. Design tools and information products that quantify energy performance, occupant impacts, reliability, and other pragmatic concerns are not available. Interest within the building industry in sustainability, energy-efficiency, and increased occupant amenity, comfort, and productivity will be the driving factors for these advanced facades in the near term--at least until the dust settles on the deregulated electricity market.

Lee, Eleanor S.; Selkowitz, Stephen E.; Levi, Mark S.; Blanc, Steven L.; McConahey, Erin; McClintock, Maurya; Hakkarainen, Pekka; Sbar, Neil L.; Myser, Michael P.

2002-06-01T23:59:59.000Z

336

Advanced turbine systems program conceptual design and product development: Quarterly report, November 1993--January 1994  

SciTech Connect (OSTI)

This report describes progress made in the advanced turbine systems program conceptual design and product development. The topics of the report include selection of the Allison GFATS, castcool technology development for industrial engines test plan and schedule, code development and background gathering phase for the ultra low NOx combustion technology task, active turbine clearance task, and water vapor/air mixture cooling of turbine vanes task.

NONE

1995-01-01T23:59:59.000Z

337

Advanced turbine systems program -- Conceptual design and product development. Final report  

SciTech Connect (OSTI)

This Final Technical Report presents the accomplishments on Phase 2 of the Advanced Turbine Systems (ATS). The ATS is an advanced, natural gas fired gas turbine system that will represent a major advance on currently available industrial gas turbines in the size range of 1--20 MW. This report covers a market-driven development. The Market Survey reported in Section 5 identified the customer`s performance needs. This market survey used analyses performed by Solar turbine Incorporated backed up by the analyses done by two consultants, Research Decision Consultants (RDC) and Onsite Energy Corporation (Onsite). This back-up was important because it is the belief of all parties that growth of the ATS will depend both on continued participation in Solar`s traditional oil and gas market but to a major extent on a new market. This new market is distributed electrical power generation. Difficult decisions have had to be made to meet the different demands of the two markets. Available resources, reasonable development schedules, avoidance of schedule or technology failures, probable acceptance by the marketplace, plus product cost, performance and environmental friendliness are a few of the complex factors influencing the selection of the Gas Fired Advanced Turbine System described in Section 3. Section 4 entitled ``Conversion to Coal`` was a task which addresses the possibility of a future interruption to an economic supply of natural gas. System definition and analysis is covered in Section 6. Two major objectives were met by this work. The first was identification of those critical technologies that can support overall attainment of the program goals. Separate technology or component programs were begun to identify and parameterize these technologies and are described in Section 7. The second objective was to prepare parametric analyses to assess performance sensitivity to operating variables and to select design approaches to meet the overall program goals.

NONE

1996-07-26T23:59:59.000Z

338

DEVELOPMENT OF OPERATIONAL CONCEPTS FOR ADVANCED SMRs: THE ROLE OF COGNITIVE SYSTEMS ENGINEERING  

SciTech Connect (OSTI)

Advanced small modular reactors (AdvSMRs) will use advanced digital instrumentation and control systems, and make greater use of automation. These advances not only pose technical and operational challenges, but will inevitably have an effect on the operating and maintenance (O&M) cost of new plants. However, there is much uncertainty about the impact of AdvSMR designs on operational and human factors considerations, such as workload, situation awareness, human reliability, staffing levels, and the appropriate allocation of functions between the crew and various automated plant systems. Existing human factors and systems engineering design standards and methodologies are not current in terms of human interaction requirements for dynamic automated systems and are no longer suitable for the analysis of evolving operational concepts. New models and guidance for operational concepts for complex socio-technical systems need to adopt a state-of-the-art approach such as Cognitive Systems Engineering (CSE) that gives due consideration to the role of personnel. This approach we report on helps to identify and evaluate human challenges related to non-traditional concepts of operations. A framework - defining operational strategies was developed based on the operational analysis of Argonne National Laboratorys Experimental Breeder Reactor-II (EBR-II), a small (20MWe) sodium-cooled reactor that was successfully operated for thirty years. Insights from the application of the systematic application of the methodology and its utility are reviewed and arguments for the formal adoption of CSE as a value-added part of the Systems Engineering process are presented.

Jacques Hugo; David Gertman

2014-04-01T23:59:59.000Z

339

The U.S. Department of Energy`s advanced turbine systems program  

SciTech Connect (OSTI)

Advanced Turbine Systems (ATS) are poised to capture the majority of new electric power generation capacity well into the next century. US Department of Energy (DOE) programs supporting the development of ATS technology will enable gas turbine manufacturers to provide ATS systems to the commercial marketplace at the turn of the next century. A progress report on the ATS Program will he presented in this paper. The technical challenges, advanced critical technology requirements, and system configurations meeting the goals of the program will be discussed. Progress has been made in the are as of materials, heat transfer, aerodynamics, and combustion. Applied research conducted by universities, industry, and Government has resulted in advanced designs and power cycle configurations to develop an ATS which operates on natural gas, coal, and biomass fuels. Details on the ATS Program research, development, and technology validation and readiness activities will be presented. The future direction of the program and relationship to other Government programs will be discussed in this paper.

Layne, A.W. [Dept. of Energy, Morgantown, WV (United States). Federal Energy Technology Center; Layne, P.W. [Dept. of Energy, Washington, DC (United States)

1998-06-01T23:59:59.000Z

340

Advanced turbine systems sensors and controls needs assessment study. Final report  

SciTech Connect (OSTI)

The Instrumentation and Controls Division of the Oak Ridge National Laboratory performed an assessment of the sensors and controls needs for land-based advanced gas turbines being designed as a part of the Department of Energy`s (DOE`s) Advanced Turbine Systems (ATS) Program for both utility and industrial applications. The assessment included visits to five turbine manufacturers. During these visits, in-depth discussions were held with design and manufacturing staff to obtain their views regarding the need for new sensors and controls for their advanced turbine designs. The Unsteady Combustion Facilities at the Morgantown Energy Technology Center was visited to assess the need for new sensors for gas turbine combustion research. Finally, a workshop was conducted at the South Carolina Energy Research and Development Center which provided a forum for industry, laboratory, and university engineers to discuss and prioritize sensor and control needs. The assessment identified more than 50 different measurement, control, and monitoring needs for advanced turbines that cannot currently be met from commercial sources. While all the identified needs are important, some are absolutely critical to the success of the ATS Program.

Anderson, R.L.; Fry, D.N.; McEvers, J.A.

1997-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

A guidebook for insulated low-slope roof systems. IEA Annex 19, Low-slope roof systems: International Energy Agency Energy Conservation in Buildings and Community Systems Programme  

SciTech Connect (OSTI)

Low-slope roof systems are common on commercial and industrial buildings and, to a lesser extent, on residential buildings. Although insulating materials have nearly always been a component of low-slope roofs, the amount of insulation used has increased in the past two decades because of escalation of heating and cooling costs and increased awareness of the need for energy conservation. As the amount of insulation has increased, the demand has intensified for design, installation, and maintenance information specifically for well-insulated roofs. Existing practices for design, installation, and maintenance of insulated roofs have evolved from experience. Typically, these practices feature compromises due to the different properties of materials making up a given roof system. Therefore, they should be examined from time to time to ensure that they are appropriate as new materials continue to enter the market and as the data base on existing systems expands. A primary purpose of this International Energy Agency (IEA) study is to assess current roofing insulation practices in the context of an accumulating data base on performance.

Not Available

1994-02-01T23:59:59.000Z

342

Reliability assessment of Passive Containment Cooling System of an Advanced Reactor using APSRA methodology  

Science Journals Connector (OSTI)

Abstract Passive Systems are increasingly playing a prominent role in the advanced nuclear reactor systems and are being utilised in normal operations as well as safety systems of the reactors following an accident. The Passive Containment Cooling System (PCCS) is one of the several passive safety features in an Advanced Reactor (AHWR). In this paper, the APSRA methodology has been employed for reliability evaluation of the PCCS of AHWR. Performance assessment of the PCCS is initially performed during a postulated design basis LOCA using the best-estimate code RELAP5/Mod 3.2. The parameters affecting the system performance are then identified and considered for further analysis. Based on some pre-determined failure criterion, the failure surface for the system is predicted using the best-estimate code taking into account the deviations of the identified parameters from their nominal states as well as the model uncertainties inherent to the best estimate code. Root diagnosis is then carried out to determine the various failure causes, which occurs mainly due to malfunctioning of mechanical components. The failure probabilities of the various components are assessed through a classical PSA treatment using generic data. The reliability of the PCCS is then evaluated from the probability of availability of these components.

Mukesh Kumar; Aranyak Chakravarty; A.K. Nayak; Hari Prasad; V. Gopika

2014-01-01T23:59:59.000Z

343

Technical analysis of advanced wastewater-treatment systems for coal-gasification plants  

SciTech Connect (OSTI)

This analysis of advanced wastewater treatment systems for coal gasification plants highlights the three coal gasification demonstration plants proposed by the US Department of Energy: The Memphis Light, Gas and Water Division Industrial Fuel Gas Demonstration Plant, the Illinois Coal Gasification Group Pipeline Gas Demonstration Plant, and the CONOCO Pipeline Gas Demonstration Plant. Technical risks exist for coal gasification wastewater treatment systems, in general, and for the three DOE demonstration plants (as designed), in particular, because of key data gaps. The quantities and compositions of coal gasification wastewaters are not well known; the treatability of coal gasification wastewaters by various technologies has not been adequately studied; the dynamic interactions of sequential wastewater treatment processes and upstream wastewater sources has not been tested at demonstration scale. This report identifies key data gaps and recommends that demonstration-size and commercial-size plants be used for coal gasification wastewater treatment data base development. While certain advanced treatment technologies can benefit from additional bench-scale studies, bench-scale and pilot plant scale operations are not representative of commercial-size facility operation. It is recommended that coal gasification demonstration plants, and other commercial-size facilities that generate similar wastewaters, be used to test advanced wastewater treatment technologies during operation by using sidestreams or collected wastewater samples in addition to the plant's own primary treatment system. Advanced wastewater treatment processes are needed to degrade refractory organics and to concentrate and remove dissolved solids to allow for wastewater reuse. Further study of reverse osmosis, evaporation, electrodialysis, ozonation, activated carbon, and ultrafiltration should take place at bench-scale.

Not Available

1981-03-31T23:59:59.000Z

344

Conservation of Energy Through The Use of a Predictive Performance Simulator of Operating Cooling Water Systems  

E-Print Network [OSTI]

chemical treatment program for the prevention of corrosion, scale and deposit accumulations. Calgon has made available a computerized performance simulator of operating cooling water systems which reliably predicts system corrosion rates, percent scale...

Schell, C. J.

1981-01-01T23:59:59.000Z

345

Animal conservation, carbon and sustainability  

Science Journals Connector (OSTI)

...different routes by which conservation can be achieved. Phil...systems are available for conservation? (a) Protected areas...inter- est in common pool resources. Somewhat...A (2002) Animal conservation 1797 Towns have difficulty supplying potable water, treatment for human...

2002-01-01T23:59:59.000Z

346

Advanced Turbine Systems (ATS) program conceptual design and product development. Quarterly progress report, December 1, 1995--February 29, 1996  

SciTech Connect (OSTI)

This report describes the overall program status of the General Electric Advanced Gas Turbine Development program, and reports progress on three main task areas. The program is focused on two specific products: (1) a 70-MW class industrial gas turbine based on the GE90 core technology, utilizing a new air cooling methodology; and (2) a 200-MW class utility gas turbine based on an advanced GE heavy-duty machine, utilizing advanced cooling and enhancement in component efficiency. The emphasis for the industrial system is placed on cycle design and low emission combustion. For the utility system, the focus is on developing a technology base for advanced turbine cooling while achieving low emission combustion. The three tasks included in this progress report are on: conversion to a coal-fueled advanced turbine system, integrated program plan, and design and test of critical components. 13 figs., 1 tab.

NONE

1997-06-01T23:59:59.000Z

347

Advances and challenges in ORC systems modeling for low grade thermal energy recovery  

Science Journals Connector (OSTI)

Abstract Low-grade thermal energy recovery has attained a renewed relevance, driven by the desire to improve system efficiency and reduce the carbon footprint of power generation. Various technologies have been suggested to exploit low-temperature thermal energy sources, otherwise difficult to access using conventional power generation systems. In this paper, the authors review the most recent advances and challenges for the exploitation of low grade thermal energy resources, with particular emphasis on ORC systems, based on information gathered from the technical literature. An outline of the issues related to ORC system modeling is also presented, and some guidelines drawn to develop an effective and powerful simulation tool. As a summary conclusion of the revised models, a simulation tool of an ORC system suitable for the exploitation of low grade thermal energy is introduced.

Davide Ziviani; Asfaw Beyene; Mauro Venturini

2014-01-01T23:59:59.000Z

348

Watts nickel and rinse water recovery via an advanced reverse osmosis system  

SciTech Connect (OSTI)

The report summarizes the results of an eight month test program conducted at the Hewlett Packard Printed Circuit Board Production Plant, Sunnyvale, CA (H.P.) to assess the effectiveness of an advanced reverse osmosis system (AROS). The AROS unit, manufactured by Water Technologies, Inc. (WTI) of Minneapolis, MN, incorporates membrane materials and system components designed to treat metal plating rinse water and produce two product streams; (1) a concentrated metal solution suitable for the plating bath, and (2) rinse water suitable for reuse as final rinse. Waste water discharge can be virtually eliminated and significant reductions realized in the need for new plating bath solution and rinse water.

Schmidt, C.; White, I.E.; Ludwig, R.

1993-08-01T23:59:59.000Z

349

System modeling for the advanced thermionic initiative single cell thermionic space nuclear reactor  

SciTech Connect (OSTI)

Incore thermionic space reactor design concepts which operate in a nominal power output range of 20 to 40 kWe are described. Details of the neutronics, thermionic, shielding, and heat rejection performance are presented. Two different designs, ATI-Driven and ATI-Driverless, are considered. Comparison of the core overall performance of these two configurations are described. The comparison of these two cores includes the overall conversion efficiency, reactor mass, shield mass, and heat rejection mass. An overall system design has been developed to model the advanced incore thermionic energy conversion based nuclear reactor systems for space applications in this power range.

Lee, H.H.; Lewis, B.R.; Klein, A.C. (Department of Nuclear Engineering, Oregon State University, Radiation Center, C116, Corvallis, Oregon 97331-5902 (United States)); Pawlowski, R.A. (Battelle Pacific Northwest Laboratories, Richland, Washington 99352 (United States))

1993-01-15T23:59:59.000Z

350

Advanced polymer PV system: PVMaT 4A1 annual report, September 1995--September 1996  

SciTech Connect (OSTI)

Purpose of this subcontract was to produce lower module and systems costs through the innovative use of polymeric materials. The Innovative Mounting System (IMS) was developed and testing begun during the first year of this contract. IMS reduces the cost of installed PV systems by reducing labor and materials costs both in the factory and in field installation. It incorporates several advances in polymers, processing methods and product design. An advanced backskin material permits elimination of the conventional Al perimeter frame by protecting and sealing the edge and by direct bonding of multifunctional mounting bars. Electrical interconnection is easier and more reliable with a new junction box. Feasibility of a non-vacuum, high-throughput lamination method was also demonstrated, involving a novel transparent encapsulant with UV stabilization package that can be laminated in air and which should lead to longer field life than conventional designs. The first-year program culminated in the fielding of prototype products with the new encapsulant, backskin, junction box, frameless edge seal, and IMS. Feedback and marketing information from potential customers were solicited. Result promises a $0.50/watt manufacturing and system cost reductions as well as increased system lifetime. The second year will complete refinement and test of the encapsulant and backskin, complete the new lamination method, and refine product designs.

Hanoka, J.; Chleboski, R.; Farber, M.; Fava, J.; Kane, P.; Martz, J. [Evergreen Solar, Inc., Waltham, MA (United States)] [Evergreen Solar, Inc., Waltham, MA (United States)

1997-06-01T23:59:59.000Z

351

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORP. FOR AN ADVANCE WAIVER  

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

CORP. FOR AN ADVANCE WAIVER CORP. FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE PRIME CONTRACT NO. DE-AC36-83CH10093; SUBCONTRACT NREL-ZAK-8-17619- 09; W(A)-99-014; CH-1007 The Petitioner, United Solar Systems Corp. (hereinafter "United Solar"), has requested a waiver of domestic and foreign patent rights for all subject inventions arising from its participation under the above referenced subcontract entitled "High-Efficiency Triple-Junction Amorphous Silicon Alloy Photovoltaic Technology". This subcontract is directed to research, development, and manufacturing of amorphous thin film solar cell products. In Particular, this subcontract is directed to the research and development of high performance two-terminal multi gap, multi junction amorphous silicon alloy modules, and to

352

Advanced Kalman Filter for Real-Time Responsiveness in Complex Systems  

SciTech Connect (OSTI)

Complex engineering systems pose fundamental challenges in real-time operations and control because they are highly dynamic systems consisting of a large number of elements with severe nonlinearities and discontinuities. Todays tools for real-time complex system operations are mostly based on steady state models, unable to capture the dynamic nature and too slow to prevent system failures. We developed advanced Kalman filtering techniques and the formulation of dynamic state estimation using Kalman filtering techniques to capture complex system dynamics in aiding real-time operations and control. In this work, we looked at complex system issues including severe nonlinearity of system equations, discontinuities caused by system controls and network switches, sparse measurements in space and time, and real-time requirements of power grid operations. We sought to bridge the disciplinary boundaries between Computer Science and Power Systems Engineering, by introducing methods that leverage both existing and new techniques. While our methods were developed in the context of electrical power systems, they should generalize to other large-scale scientific and engineering applications.

Welch, Gregory Francis [UNC-Chapel Hill/University of Central Florida] [UNC-Chapel Hill/University of Central Florida; Zhang, Jinghe [UNC-Chapel Hill/Virginia Tech] [UNC-Chapel Hill/Virginia Tech

2014-06-10T23:59:59.000Z

353

Advanced Hydrogen Storage: A System's Perspective and Some Thoughts on Fundamentals  

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

90246.00 90246.00 Advanced Hydrogen Storage: A System's Perspective and Some Thoughts on Fundamentals Presentation for DOE Workshop on Hydrogen Storage August 14-15, 2002 1/16 WPT MR 90246.00 In the development of attractive hydrogen storage options, fundamental materials properties and their impact on system design are both critical. * Compact, light, and efficient hydrogen storage technology is a key enabling technology for fuel cell vehicles and the use of renewable energy in vehicles * Due to system-level limitations current hydrogen storage systems meet some of the requirements but none meet all of the requirements - Current storage materials do not offer clear advantages over compressed or liquid hydrogen storage - Improving storage capacity will require improvement in material performance such

354

Process/equipment co-simulation for designe and analysis of advanced energy systems  

SciTech Connect (OSTI)

b s t r a c t The grand challenge facing the power and energy industries is the development of efficient, environmentally friendly, and affordable technologies for next-generation energy systems. To provide solutions for energy and the environment, the U.S. Department of Energys (DOE) National Energy Technology Laboratory (NETL) and its research partners in industry and academia are relying increasingly on the use of sophisticated computer-aided process design and optimization tools. In this paper, we describe recent progress toward developing an Advanced Process Engineering Co-Simulator (APECS) for the high-fidelity design, analysis, and optimization of energy plants. The APECS software system combines steady-state process simulation with multiphysics-based equipment simulations, such as those based on computational fluid dynamics (CFD). These co-simulation capabilities enable design engineers to optimize overall process performance with respect to complex thermal and fluid flow phenomena arising in key plant equipment items, such as combustors, gasifiers, turbines, and carbon capture devices. In this paper we review several applications of the APECS co-simulation technology to advanced energy systems, including coal-fired energy plants with carbon capture. This paper also discusses ongoing co-simulation R&D activities and challenges in areas such as CFD-based reduced-order modeling, knowledge management, advanced analysis and optimization, and virtual plant co-simulation. Continued progress in co-simulation technology through improved integration, solution, and deployment will have profound positive impacts on the design and optimization of high-efficiency, near-zero emission fossil energy systems.

Zitney, S.

2010-01-01T23:59:59.000Z

355

NETL: Gasification Systems - Advanced CO2 Capture Technology for Low-Rank  

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

Advanced CO2 Capture Technology for Low-Rank Coal IGCC Systems Advanced CO2 Capture Technology for Low-Rank Coal IGCC Systems Project Number: DE-FE0007966 TDA Research, Inc. (TDA) is demonstrating the technical and economic viability of a new Integrated Gasification Combined Cycle (IGCC) power plant designed to efficiently process low-rank coals. The plant uses an integrated carbon dioxide (CO2) scrubber/water gas shift (WGS) catalyst to capture more than 90 percent of the CO2 emissions, while increasing the cost of electricity by less than 10 percent compared to a plant with no carbon capture. TDA is optimizing the sorbent/catalyst and process design, and assessing the efficacy of the integrated WGS catalyst/CO2 capture system, first in bench-scale experiments and then in a slipstream field demonstration using actual coal-derived synthesis gas. The results will feed into a techno-economic analysis to estimate the impact of the WGS catalyst/CO2 capture system on the thermal efficiency of the plant and the cost of electricity.

356

An economic comparison and evaluation of two geothermal district heating systems for advanced exergoeconomic analysis  

Science Journals Connector (OSTI)

Abstract This paper refers to an economic comparison and evaluation of two geothermal district heating systems (GDHSs) under same reference state condition and mechanic/economic parameters by using an advanced exergoeconomic analysis. In this analysis, costs of investment and exergy destruction of each component for the thermal systems such as the Afyon and Sarayky \\{GDHSs\\} were split into endogenous/exogenous and unavoidable/avoidable parts, and were also compared with each other for the first time. The results obtained show that the advanced exergoeconomic analysis makes the information more accurate and useful, and supplies additional information that cannot be provided by the conversional analysis. Furthermore, the Afyon GDHS can be made more cost effectiveness, removing the system components irreversibilities, technical-economic limitations, and poorly chosen manufacturing methods, according to the Sarayky GDHS. The majority of the components in the Sarayky GDHS are to operate more economically than those in the Afyon GDHS. As a result, the usefulness of this method was clearly demonstrated comparing both the systems.

P?nar Keeba?; Harun Gkgedik; Mehmet Ali Alkan; Ali Keeba?

2014-01-01T23:59:59.000Z

357

Synchronisation of the LHC Betatron Coupling and Phase Advance Measurement System  

E-Print Network [OSTI]

The new LHC Diode ORbit and OScillation (DOROS) system will provide beam position readings with submicrometre resolution and at the same time will be able to perform measurements of local betatron coupling and beam phase advance with micrometre beam excitation. The oscillation sub-system employs gain-controlled RF amplifiers, shared with the orbit system, and followed by dedicated diode detectors to demodulate the beam oscillation signals into the kHz frequency range, subsequently digitized by multi-channel 24-bit ADCs. The digital signals are processed in each front-end with an FPGA and the results of reduced throughput are sent using an Ethernet protocol to a common concentrator, together with the orbit data. The phase advance calculation between multiple Beam Position Monitors (BPMs) requires that all DOROS front-ends have a common phase reference. This paper presents methods used to generate such a reference and to maintain a stable synchronous sampling on all system front-ends. The performance of the DOR...

Gasior, M

2014-01-01T23:59:59.000Z

358

ZnO nanorefrigerant in R152a refrigeration system for energy conservation and green environment  

Science Journals Connector (OSTI)

In this paper the reliability and performance of a vapour compression refrigeration system with ZnO nanoparticles in the working fluid was investigated experimentally. Nanorefrigerant was synthesized on the basis...

D. Sendil Kumar; R. Elansezhian

2014-03-01T23:59:59.000Z

359

Fermilab Central Computing Facility: Energy conservation report and mechanical systems design optimization and cost analysis study  

SciTech Connect (OSTI)

This report is developed as part of the Fermilab Central Computing Facility Project Title II Design Documentation Update under the provisions of DOE Document 6430.1, Chapter XIII-21, Section 14, paragraph a. As such, it concentrates primarily on HVAC mechanical systems design optimization and cost analysis and should be considered as a supplement to the Title I Design Report date March 1986 wherein energy related issues are discussed pertaining to building envelope and orientation as well as electrical systems design.

Krstulovich, S.F.

1986-11-12T23:59:59.000Z

360

Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems  

SciTech Connect (OSTI)

The Advanced Fuel Cycle Economic Analysis of Symbiotic Light-Water Reactor and Fast Burner Reactor Systems, prepared to support the U.S. Advanced Fuel Cycle Initiative (AFCI) systems analysis, provides a technology-oriented baseline system cost comparison between the open fuel cycle and closed fuel cycle systems. The intent is to understand their overall cost trends, cost sensitivities, and trade-offs. This analysis also improves the AFCI Programs understanding of the cost drivers that will determine nuclear powers cost competitiveness vis-a-vis other baseload generation systems. The common reactor-related costs consist of capital, operating, and decontamination and decommissioning costs. Fuel cycle costs include front-end (pre-irradiation) and back-end (post-iradiation) costs, as well as costs specifically associated with fuel recycling. This analysis reveals that there are large cost uncertainties associated with all the fuel cycle strategies, and that overall systems (reactor plus fuel cycle) using a closed fuel cycle are about 10% more expensive in terms of electricity generation cost than open cycle systems. The study concludes that further U.S. and joint international-based design studies are needed to reduce the cost uncertainties with respect to fast reactor, fuel separation and fabrication, and waste disposition. The results of this work can help provide insight to the cost-related factors and conditions needed to keep nuclear energy (including closed fuel cycles) economically competitive in the U.S. and worldwide. These results may be updated over time based on new cost information, revised assumptions, and feedback received from additional reviews.

D. E. Shropshire

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Corrosion and its effect on mechanical properties of materials for advanced combustion systems  

SciTech Connect (OSTI)

Conceptual designs of advanced combustion systems that utilize coal as a feedstock require high-temperature furnaces and heat transfer surfaces that can operate at temperatures much higher than those prevalent in current coal-fired power plants. The combination of elevated temperatures and hostile combustion environments necessitates development and application of advanced ceramic materials in these designs. The objectives of the present program are to evaluate (a) the chemistry of gaseous and condensed products that arise during combustion of coal; (b) the corrosion behavior of candidate materials in air, slag and salt environments for application in the combustion environments; and (c) the residual mechanical properties of the materials after corrosion. The program emphasizes temperatures in the range of 1000-1400{degrees}C for ceramic materials and 600-1000{degrees}C for metallic alloys. Coal/ash chemistries developed on the basis of thermodynamic/kinetic calculations, together with slags from actual combustors, are used in the program. The materials being evaluated include monolithic silicon carbide from several sources: silicon, nitride, silicon carbide in alumina composites, silicon carbide fibers in a silicon carbide- matrix composite, and some advanced nickel-base alloys. The paper presents results from an ongoing program on corrosion performance of candidate ceramic materials exposed to air, salt and slag environments and their affect on flexural strength and energy absorbed during fracture of these materials.

Natesan, K. [Argonne National Lab., IL (United States); Freeman, M.; Mathur, M. [Pittsburgh Energy Technology Center, Pittsburgh, PA (United States)

1996-05-01T23:59:59.000Z

362

UTILITY ADVANCED TURBINE SYSTEMS (ATS) TECHNOLOGY READINESS TESTING: PHASE 3R  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed, including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which was to have been sited and operated in Phase 4 but will now be sited and operated commercially by GE. This change has resulted from DOE's request to GE for deletion of Phase 4 in favor of a restructured Phase 3 (as Phase 3R) to include full speed, no load (FSNL) testing of the 7H gas turbine. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown. This report summarizes work accomplished in 2Q99.

None

1999-09-01T23:59:59.000Z

363

Advanced model-based FDIR techniques for aerospace systems: Today challenges and opportunities  

Science Journals Connector (OSTI)

This paper discusses some trends and recent advances in model-based Fault Detection, Isolation and Recovery (FDIR) for aerospace systems. The FDIR challenges range from pre-design and design stages for upcoming and new programs, to improvement of the performance of in-service flying systems. For space missions, optimization of flight conditions and safe operation is intrinsically related to GNC (Guidance, Navigation & Control) system of the spacecraft and includes sensors and actuators monitoring. Many future space missions will require autonomous proximity operations including fault diagnosis and the subsequent control and guidance recovery actions. For upcoming and future aircraft, one of the main issues is how early and robust diagnosis of some small and subtle faults could contribute to the overall optimization of aircraft design. This issue would be an important factor for anticipating the more and more stringent requirements which would come in force for future environmentally-friendlier programs. The paper underlines the reasons for a widening gap between the advanced scientific FDIR methods being developed by the academic community and technological solutions demanded by the aerospace industry.

Ali Zolghadri

2012-01-01T23:59:59.000Z

364

Advanced Recyclable Media System{reg_sign}. Innovative technology summary report  

SciTech Connect (OSTI)

The objective of the Large-Scale Demonstration Project (LSDP) is to select and demonstrate potentially beneficial technologies at the Argonne National Laboratory East`s (ANL) Chicago Pile-5 (CP-5) Research Reactor. The purpose of the LSDP is to demonstrate that using innovative and improved deactivation and decommissioning (D and D) technologies from various sources can result in significant benefits, such as decreased cost and increased health and safety, as compared with baseline D and D technologies. This report describes a demonstration of the Advanced Recyclable Media System{reg_sign} technology which was employed by Surface Technology Systems, Inc. to remove coatings from a concrete floor. This demonstration is part of the CP-5 LSDP sponsored by the US Department of Energy (DOE) Office of Science and Technology Deactivation and Decommissioning Focus Area (DDFA). The Advanced Recyclable Media System{reg_sign} (ARMS) technology is an open blast technology which uses a soft recyclable media. The patented ARMS Engineered Blast Media consists of a fiber-reinforced polymer matrix which can be manufactured in various grades of abrasiveness. The fiber media can be remade and/or reused up to 20 times and can clean almost any surface (e.g., metal, wood, concrete, lead) and geometry including corners and the inside of air ducts.

NONE

1998-12-01T23:59:59.000Z

365

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System  

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

Suite of Projects Suite of Projects RTU Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates that packaged air conditioners

366

Rooftop Unit Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System  

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

Suite of Projects Suite of Projects RTU Suite: RTU Challenge, RTU Advanced Controls and RTU Smart Monitoring and Diagnostic System Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 4, 2013 2 | Building Technologies Office eere.energy.gov * Packaged air conditioners and heat pumps (RTUs) are used in about 58% of all cooled commercial buildings, serving about 69% of the cooled commercial building floor space (EIA 2003) - Navigant estimates that packaged air conditioners

367

Development plan for an advanced drilling system with real-time diagnostics (Diagnostics-While-Drilling)  

SciTech Connect (OSTI)

This proposal provides the rationale for an advanced system called Diagnostics-while-drilling (DWD) and describes its benefits, preliminary configuration, and essential characteristics. The central concept is a closed data circuit in which downhole sensors collect information and send it to the surface via a high-speed data link, where it is combined with surface measurements and processed through drilling advisory software. The driller then uses this information to adjust the drilling process, sending control signals back downhole with real-time knowledge of their effects on performance. The report presents background of related previous work, and defines a Program Plan for US Department of Energy (DOE), university, and industry cooperation.

FINGER,JOHN T.; MANSURE,ARTHUR J.; PRAIRIE,MICHAEL R.; GLOWKA,D.A.

2000-02-01T23:59:59.000Z

368

Probability-Based Software for Grid Optimization: Improved Power System Operations Using Advanced Stochastic Optimization  

SciTech Connect (OSTI)

GENI Project: Sandia National Laboratories is working with several commercial and university partners to develop software for market management systems (MMSs) that enable greater use of renewable energy sources throughout the grid. MMSs are used to securely and optimally determine which energy resources should be used to service energy demand across the country. Contributions of electricity to the grid from renewable energy sources such as wind and solar are intermittent, introducing complications for MMSs, which have trouble accommodating the multiple sources of price and supply uncertainties associated with bringing these new types of energy into the grid. Sandias software will bring a new, probability-based formulation to account for these uncertainties. By factoring in various probability scenarios for electricity production from renewable energy sources in real time, Sandias formula can reduce the risk of inefficient electricity transmission, save ratepayers money, conserve power, and support the future use of renewable energy.

None

2012-02-24T23:59:59.000Z

369

Basic Parameter Estimation of Binary Neutron Star Systems by the Advanced LIGO/Virgo Network  

Science Journals Connector (OSTI)

Within the next five years, it is expected that the Advanced LIGO/Virgo network will have reached a sensitivity sufficient to enable the routine detection of gravitational waves. Beyond the initial detection, the scientific promise of these instruments relies on the effectiveness of our physical parameter estimation capabilities. A major part of this effort has been toward the detection and characterization of gravitational waves from compact binary coalescence, e.g., the coalescence of binary neutron stars. While several previous studies have investigated the accuracy of parameter estimation with advanced detectors, the majority have relied on approximation techniques such as the Fisher Matrix which are insensitive to the non-Gaussian nature of the gravitational wave posterior distribution function. Here we report average statistical uncertainties that will be achievable for strong detection candidates (S/N = 20) over a comprehensive sample of source parameters. We use the Markov Chain Monte Carlo based parameter estimation software developed by the LIGO/Virgo Collaboration with the goal of updating the previously quoted Fisher Matrix bounds. We find the recovery of the individual masses to be fractionally within 9% (15%) at the 68% (95%) credible intervals for equal-mass systems, and within 1.9% (3.7%) for unequal-mass systems. We also find that the Advanced LIGO/Virgo network will constrain the locations of binary neutron star mergers to a median uncertainty of 5.1 deg2 (13.5 deg2) on the sky. This region is improved to 2.3 deg2 (6 deg2) with the addition of the proposed LIGO India detector to the network. We also report the average uncertainties on the luminosity distances and orbital inclinations of strong detections that can be achieved by different network configurations.

Carl L. Rodriguez; Benjamin Farr; Vivien Raymond; Will M. Farr; Tyson B. Littenberg; Diego Fazi; Vicky Kalogera

2014-01-01T23:59:59.000Z

370

High power-saving and fidelity-conserving object-based local dimming for LCD systems with LED-based backlight units  

Science Journals Connector (OSTI)

A local dimming technique which is enabled on LED-based LCD systems is expected to give more power saving than a global one. However, prior local dimming techniques have not considered human visual system-awareness much as done in an advanced global ... Keywords: Backlight dimming, Complexity, Fidelity, Human visual system, LED BLU-based LCD, Object-based local dimming, Power

Aldhino Anggorosesar, Young-Jin Kim

2014-09-01T23:59:59.000Z

371

STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF  

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

2NT41246; W(A) 03-021 ; CH-1147 2NT41246; W(A) 03-021 ; CH-1147 As set out in the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Delphi Automotive Systems, L.L.C (Delphi) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above subject cooperative agreement. The waiver will apply to inventions made by Delphi employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories. Referring to item 2 of Delphi's petition, the purpose of this agreement is to develop 5 kW Solid Oxide Fuel Cell (SOFC) power systems for a range of fuels and applications. These

372

STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS FOR AN ADVANCE WAIVER OF  

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

1NT41022; W(A)-03-022; CH-1146 1NT41022; W(A)-03-022; CH-1146 As set out in the attached waiver petition and in subsequent discussions with DOE Patent Counsel, Delphi Automotive Systems, L.L.C (Delphi) has requested an advance waiver of domestic and foreign patent rights for all subject inventions made under the above subject cooperative agreement. The waiver will apply to inventions made by Delphi employees and its subcontractors' employees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories. Referring to item 2 of Delphi's petition, the purpose of this agreement is the development of interconnects for solid oxide fuel cell systems. Delphi will investigate materials for the metal

373

The Advanced Candu reactor annunciation system - Compliance with IEC standard and US NRC guidelines  

SciTech Connect (OSTI)

Annunciation is a key plant information system that alerts Operations staff to important changes in plant processes and systems. Operational experience at nuclear stations worldwide has shown that many annunciation implementations do not provide the support needed by Operations staff in all plant situations. To address utility needs for annunciation improvement in Candu plants, AECL in partnership with Canadian Candu utilities, undertook an annunciation improvement program in the early nineties. The outcome of the research and engineering development program was the development and simulator validation of alarm processing, display, and information presentation techniques that provide practical and effective solutions to key operational deficiencies with earlier annunciation implementations. The improved annunciation capabilities consist of a series of detection, information processing and presentation functions called the Candu Annunciation Message List System (CAMLS). The CAMLS concepts embody alarm processing, presentation and interaction techniques, and strategies and methods for annunciation system configuration to ensure improved annunciation support for all plant situations, especially in upset situations where the alarm generation rate is high. The Advanced Candu Reactor (ACR) project will employ the CAMLS annunciation concepts as the basis for primary annunciation implementations. The primary annunciation systems will be implemented from CAMLS applications hosted on AECL Advanced Control Centre Information System (ACCIS) computing technology. The ACR project has also chosen to implement main control room annunciation aspects in conformance with the following international standard and regulatory review guide for control room annunciation practice: International Electrotechnical Commission (IEC) 62241 - Main Control Room, Alarm Function and Presentation (International standard) US NRC NUREG-0700 - Human-System Interface Design Review Guidelines, Section 4 - Alarm System (Regulatory review guide) In order for the ACR annunciation system to comply with IEC-62241 and NUREG-0700, the CAMLS concepts must satisfy their respective requirements and guidelines. This paper will provide a summary of how CAMLS complies with IEC-62241 and NUREG-0700. Overall, the CAMLS-based annunciation requirements conform to the intent of the recommended annunciation practices included in both these documents. However, there are minor differences in requirements interpretation and annunciation practice between CAMLS implementation concepts and the recommended practice in each document. Generally the differences with IEC-62241 revolve around definitions, the display properties of new alarms, and video display unit (VDU) alarm display organization. The differences with NUREG-0700 revolve around segregation of status alarms, the use of spatially dedicated, continuously visible displays, simultaneous display of high-priority alarms, audible signals for alarm states and reminder signals, blank lines in alarm message lists and manual silencing. These minor differences are discussed and rationales for the CAMLS implementation concepts are provided. (authors)

Leger, R.; Malcolm, S. [Atomic Energy of Canada Limited, 2251 Speakman Drive, Mississauga, Ont. L5K 1B2 (Canada); Davey, E. [Crew Systems Solutions, Deep River, Ont. K0J 1P0 (Canada)

2006-07-01T23:59:59.000Z

374

Task 3.0 -- Advanced power systems: Subtask 3.18 -- Ash behavior in power systems. Semi-annual report, June 1--December 31, 1997  

SciTech Connect (OSTI)

Advanced power systems such as integrated gasifier combined cycle systems and fluidized bed systems are at the forefront of power industry research because of the need for increased efficiency and the reduction of greenhouse gases. Ash behavior in power systems can have a significant impact on the design and performance of these systems. The Energy and Environmental Research Center (EERC) has developed a focused research initiative aimed at filling gaps in the understanding of fundamental mechanisms of ash behavior, which has relevance to commercial application and marketable products associated with advanced power systems. This program develops methods and means to better understand and mitigate adverse coal ash behavior in advanced power systems and can act to relieve the US reliance on diminishing recoverable oil resources and other greenhouse-producing fossil fuels. Subtask 3.18 is structured as three tasks. Task 1 pertains to summarizing the critical issues in ash behavior, especially for advanced power systems. Task 2 focuses on fundamental ash sintering and viscosity-ash composition relationships that are critical for developing a better mechanistic understanding of ash deposit formation and for predicting ash behavior. Task 3 is aimed primarily at determining the role of the ash chemistry and phase relationships for specific ash interactions in advanced power systems. The role of sulfides in the formation of ash deposits in gasification systems and the factors that influence alloy corrosion in supercritical boilers will be specifically analyzed. Task results to date are presented.

Zygarlicke, C.J.; McCollor, D.P.; Folkedahl, B.C.; Swanson, M.L.; Musich, M.A.

1998-10-01T23:59:59.000Z

375

Global search tool for the Advanced Photon Source Integrated Relational Model of Installed Systems (IRMIS) database.  

SciTech Connect (OSTI)

The Integrated Relational Model of Installed Systems (IRMIS) is a relational database tool that has been implemented at the Advanced Photon Source to maintain an updated account of approximately 600 control system software applications, 400,000 process variables, and 30,000 control system hardware components. To effectively display this large amount of control system information to operators and engineers, IRMIS was initially built with nine Web-based viewers: Applications Organizing Index, IOC, PLC, Component Type, Installed Components, Network, Controls Spares, Process Variables, and Cables. However, since each viewer is designed to provide details from only one major category of the control system, the necessity for a one-stop global search tool for the entire database became apparent. The user requirements for extremely fast database search time and ease of navigation through search results led to the choice of Asynchronous JavaScript and XML (AJAX) technology in the implementation of the IRMIS global search tool. Unique features of the global search tool include a two-tier level of displayed search results, and a database data integrity validation and reporting mechanism.

Quock, D. E. R.; Cianciarulo, M. B.; APS Engineering Support Division; Purdue Univ.

2007-01-01T23:59:59.000Z

376

Requirements for the conceptual design of advanced underground coal-extraction systems  

SciTech Connect (OSTI)

This document presents conceptual design requirements for underground coal mining systems having substantially improved performance in the areas of production cost and miner safety. Mandatory performance levels are also set for miner health, environmental impact, and coal recovery. In addition to mandatory design goals and constraints, the document identifies a number of desirable system characteristics which must be assessed in terms of their impact on production cost and their compatibility with other system elements. Although developed for the flat-lying, moderately thick seams of Central Appalachia, these requirements are designed to be easily adaptable to other coals. This document results from the initial phase of a program to define, develop, and demonstrate advanced equipment suitable for the resources remaining beyond the year 2000. The requirements developed are meant to implement the broad systems performance goals formulated by Goldsmith and Lavin (1980) by providing a rational point of departure for the design of underground mining systems with emphasis on Central Appalachian coals. Because no one has yet attempted to design to these requirements, they may contain some inconsistencies and need clarification in some areas. Accordingly, the authors would very much appreciate commments and suggestions from those who have used or critically reviewed these requirements.

Gangal, M.D.; Lavin, M.L.

1981-12-15T23:59:59.000Z

377

Advanced coal-fueled gas turbine systems: Subscale combustion testing. Topical report, Task 3.1  

SciTech Connect (OSTI)

This is the final report on the Subscale Combustor Testing performed at Textron Defense Systems` (TDS) Haverhill Combustion Laboratories for the Advanced Coal-Fueled Gas Turbine System Program of the Westinghouse Electric Corp. This program was initiated by the Department of Energy in 1986 as an R&D effort to establish the technology base for the commercial application of direct coal-fired gas turbines. The combustion system under consideration incorporates a modular staged, rich-lean-quench, Toroidal Vortex Slogging Combustor (TVC) concept. Fuel-rich conditions in the first stage inhibit NO{sub x} formation from fuel-bound nitrogen; molten coal ash and sulfated sorbent are removed, tapped and quenched from the combustion gases by inertial separation in the second stage. Final oxidation of the fuel-rich gases, and dilution to achieve the desired turbine inlet conditions are accomplished in the third stage, which is maintained sufficiently lean so that here, too, NO{sub x} formation is inhibited. The primary objective of this work was to verify the feasibility of a direct coal-fueled combustion system for combustion turbine applications. This has been accomplished by the design, fabrication, testing and operation of a subscale development-type coal-fired combustor. Because this was a complete departure from present-day turbine combustors and fuels, it was considered necessary to make a thorough evaluation of this design, and its operation in subscale, before applying it in commercial combustion turbine power systems.

Not Available

1993-05-01T23:59:59.000Z

378

Design, fabrication, and certification of advanced modular PV power systems. Final technical progress report  

SciTech Connect (OSTI)

Solar Electric Specialties Company (SES) has completed a two and a half year effort under the auspices of the US Department of Energy (DOE) PVMaT (Photovoltaic Manufacturing Technology) project. Under Phase 4A1 of the project for Product Driven System and Component Technology, the SES contract ``Design, Fabrication and Certification of Advanced Modular PV Power Systems`` had the goal to reduce installed system life cycle costs through development of certified (Underwriters Laboratories or other listing) and standardized prototype products for two of the product lines, MAPPS{trademark} (Modular Autonomous PV Power Supply) and Photogensets{trademark}. MAPPS are small DC systems consisting of Photovoltaic modules, batteries and a charge controller and producing up to about a thousand watt-hours per day. Photogensets are stand-alone AC systems incorporating a generator as backup for the PV in addition to a DC-AC inverter and battery charger. The program tasks for the two-year contract consisted of designing and fabricating prototypes of both a MAPPS and a Photogenset to meet agency listing requirements using modular concepts that would support development of families of products, submitting the prototypes for listing, and performing functionality testing at Sandia and NREL. Both prototypes were candidates for UL (Underwriters Laboratories) listing. The MAPPS was also a candidate for FM (Factory Mutual) approval for hazardous (incendiary gases) locations.

Lambarski, T.; Minyard, G. [Solar Electric Specialties Co., Willits, CA (United States)

1998-10-01T23:59:59.000Z

379

Advanced turbine systems program conceptual design and product development. Quarterly report, February 1995--April 1995  

SciTech Connect (OSTI)

This Quarterly Technical Progress Report covers the period February 1, 1995, through April 30, 1995, for Phase II of the Advanced Turbine Systems (ATS) Program by Solar Turbines Incorporated under DOE contract No. DE-AC21-93MC30246. The objective of Phase II of the ATS Program is to provide the conceptual design and product development plan for an ultra high efficiency, environmentally superior and cost competitive industrial gas turbine system to be commercialized by the year 2000. A secondary objective is to begin early development of technologies critical to the success of ATS. Tasks 1, 2, 3, 5, 6 and 7 of Phase II have been completed in prior quarters. Their results have been discussed in the applicable quarterly reports and in their respective topical reports. With the exception of Task 7, final editions of these topical reports have been submitted to the DOE. This quarterly report, then, addresses only Task 4 and the nine subtasks included in Task 8, {open_quotes}Design and Test of Critical Components.{close_quotes} These nine subtasks address six ATS technologies as follows: (1) Catalytic Combustion - Subtasks 8.2 and 8.5, (2) Recuperator - Subtasks 8.1 and 8.7, (3) Autothermal Fuel Reformer - Subtask 8.3, (4) High Temperature Turbine Disc - Subtask 8.4, (5) Advanced Control System (MMI) - Subtask 8.6, and (6) Ceramic Materials - Subtasks 8.8 and 8.9. Major technological achievements from Task 8 efforts during the quarter are as follows: (1) The subscale catalytic combustion rig in Subtask 8.2 is operating consistently at 3 ppmv of NO{sub x} over a range of ATS operating conditions. (2) The spray cast process used to produce the rim section of the high temperature turbine disc of Subtask 8.4 offers additional and unplanned spin-off opportunities for low cost manufacture of certain gas turbine parts.

Karstensen, K.W.

1995-07-01T23:59:59.000Z

380

Effectiveness of AOC removal by advanced water treatment systems: a case study  

Science Journals Connector (OSTI)

Recently, the appearance of assimilable organic carbon (AOC) in the water treatment system and effluent of the treatment plant has brought more attention to the environmental engineers. In this study, AOC removal efficiency at the Cheng-Ching Lake water treatment plant (CCLWTP) was evaluated. The main objectives of this study were to: (1) evaluate the treatability of AOC by the advanced treatment system at the CCLWTP, (2) assess the relativity of AOC and the variations of other water quality indicators, (3) evaluate the effects of sodium thiosulfate on AOC analysis, and (4) evaluate the efficiency of biofiltration process using granular activated carbon (GAC) and anthracite as the fillers. Results show that the averaged influent and final effluent AOC concentrations at the CCLWTP were approximately 124 and 30 ?g acetate-C/L, respectively. Thus, the treatment plant had an AOC removal efficiency of about 76%, and the AOC concentrations in the final effluent met the criteria established by the CCLWTP (50 ?g acetate-C/L). Results indicate that the biofiltration process might contribute to the removal of the trace AOC in the GAC filtration process. Moreover, the removal of AOC had a correlation with the decrease in concentrations of other drinking water indicators. Results from a column test show that GAC was a more appropriate material than anthracite for the AOC removal. Results from this study provide us insight into the mechanisms of AOC removal by advanced water treatment processes. These findings would be helpful in designing a modified water treatment system for AOC removal and water quality improvement.

C.C. Chien; C.M. Kao; C.D. Dong; T.Y. Chen; J.Y. Chen

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

System modeling and reactor design studies of the Advanced Thermionic Initiative space nuclear reactor  

SciTech Connect (OSTI)

In-core thermionic space reactor design concepts that operate at a nominal power output range of 20 to 50 kW(electric) are described. Details of the neutronic, thermionic, thermal hydraulics, and shielding performance are presented. Because of the strong absorption of thermal neutrons by natural tungsten and the large amount of natural tungsten within the reactor core, two designs are considered. An overall system design code has been developed at Oregon State University to model advanced in-core thermionic energy conversion-based nuclear reactor systems for space applications. The results show that the driverless single-cell Advanced Thermionic Initiative (ATI) configuration, which does not have driver fuel rods, proved to be more efficient than the driven core, which has driver rods. The results also show that the inclusion of the true axial and radial power distribution decrease the overall conversion efficiency. The flattening of the radial power distribution by three different methods would lead to a higher efficiency. The results show that only one TFE works at the optimum emitter temperature; all other TFEs are off the optimum performance and result in a 40% decrease of the efficiency of the overall system. The true axial profile is significantly different as there is a considerable amount of neutron leakage out of the top and bottom of the reactor. The analysis reveals that the axial power profile actually has a chopped cosine shape. For this axial profile, the reactor core overall efficiency for the driverless ATI reactor version is found to be 5.84% with a total electrical power of 21.92 kW(electric). By considering the true axial power profile instead of the uniform power profile, each TFE loses {approximately}80 W(electric).

Lee, H.H.; Abdul-Hamid, S.; Klein, A.C. [Oregon State Univ., Corvallis, OR (United States). Dept. of Nuclear Engineering Radiation Center] [Oregon State Univ., Corvallis, OR (United States). Dept. of Nuclear Engineering Radiation Center

1996-07-01T23:59:59.000Z

382

E-Print Network 3.0 - advanced fuel systems Sample Search Results  

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

States Summary: advanced vehicle and fuel technologies, helps to move them from R&D to markets - Collaborate on R... ethanol) - 50% for advanced biofuels (e.g., sugar ethanol)...

383

Achieve Continuous Injection of Solid Fuels into Advanced Combustion System Pressures  

SciTech Connect (OSTI)

The overall objective of this project is the development of a mechanical rotary-disk feeder, known as the Stamet Posimetric High Pressure Solids Feeder System, to feed dry granular coal continuously and controllably into pressurized environments of up to 35 kg/cm{sup 2} (500 psi). This was to be accomplished in two phases. The first task was to review materials handling experience in pressurized operations as it related to the target pressures for this project, and review existing coal preparation processes and specifications currently used in advanced combustion systems. Samples of existing fuel materials were obtained and tested to evaluate flow, sealing and friction properties. This provided input data for use in the design of the Stamet Feeders for the project, and ensured that the material specification used met the requirements of advanced combustion & gasification systems. Ultimately, Powder River Basin coal provided by the PSDF facility in Wilsonville, AL was used as the basis for the feeder design and test program. Based on the material property information, a Phase 1 feeder system was designed and built to accomplish feeding the coal to an intermediate pressure up to 21 kg/cm{sup 2} (300 psi) at feed rates of approximately 100 kilograms (220lbs) per hour. The pump & motor system was installed in a custom built test rig comprising an inlet vessel containing an active live-wall hopper mounted in a support frame, transition into the pump inlet, transition from pump outlet and a receiver vessel containing a receiver drum supported on weigh cells. All pressure containment on the rig was rated for the final pressure requirement of 35 kg/cm{sup 2} (500psi). A program of testing and modification was carried out in Stamet's facility in CA, culminating in successful feeding of coal into the Phase 1 target of 21 kg/cm{sup 2} (300psi) gas pressure in December 2003. Further testing was carried out at CQ Inc's facility in PA, providing longer run times and experience of handling and feeding the coal in winter conditions. Based on the data developed through the testing of the Phase I unit, a Phase II system was designed for feeding coal into pressures of up to 35 kg/cm{sup 2} (500 psi). A further program of testing and modification was then carried out in Stamet's facility, with the target pressure being achieved in January 2005. Repeated runs at pressure were achieved, and optimization of the machine resulted in power reductions of 60% from the first successful pressure runs. General design layout of a commercial-scale unit was conducted, and preliminary cost estimates for a commercial unit obtained.

Derek L. Aldred; Timothy Saunders

2005-07-01T23:59:59.000Z

384

Active load management with advanced window wall systems: Research and industry perspectives  

E-Print Network [OSTI]

sustainability, energy- efficiency, and increased occupant amenity, comfort, and productivity will be the driving factors for these advanced facades

2002-01-01T23:59:59.000Z

385

Compare Activities by Energy Conservation  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Conservation Energy Conservation Compare Activities by ... Energy Conservation Inpatient health care buildings had the highest incidence of conservation features among all building types. For almost all building types, at least half of the buildings reported having a regularly scheduled maintenance program for the heating and/or cooling equipment. Reference: Definitions of Conservation Features Number of Buildings With Conservation Features by Building Type Number of Buildings (thousand) All Buildings Variable Air-Volume System Economizer Cycle HVAC Maintenance Energy Management and Control System (EMCS) Specular Reflector Electronic Ballasts All Buildings 4,657 550 567 2,786 460 843 2,167 Principal Building Activity Education 327 53 76 262 112 75 208 Food Sales 174

386

ESS 2012 Peer Review - Advanced Sodium Battery - Joonho Koh, Materials & Systems Research  

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

Sodium Battery Sodium Battery Joonho Koh (jkoh@msrihome.com), Greg Tao (gtao@msrihome.com), Neill Weber, and Anil V. Virkar Materials & Systems Research, Inc., 5395 W 700 S, Salt Lake City, UT 84104 Company Introduction History  Founded in 1990 by Dr. Dinesh K. Shetty and Dr. Anil V. Virkar  Currently 11 employees including 5 PhDs  10,000 ft² research facility in Salt Lake City, Utah MSRI's Experience of Na Batteries Status of the Na Batteries Overall Project Description Goal Develop advanced Na battery technology for enhanced safety, reduced fabrication cost, and high-power performance Approach  Innovative cell design using stronger structural materials  Reduction of the fabrication cost using a simple and reliable processing technique

387

Current Building Energy Codes: Using the Process to Advance Energy Efficient Systems  

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

12 12 NREL / Build America Stakeholders Meeting Presented by David Karmol, VP, Federal & External Affairs  The purpose of this presentation is to provide information on ICC model codes that impact the design and construction of buildings, and tactics to allow Building America advances to be incorporated into the model code and/or recognized by building code officials  The expected outcome is an ability to expand the reach of Build America innovations, by using available resources to mainstream new energy efficiency systems into building practices nationwide 2 3  Will apply to traditional commercial and high-performance buildings.  Consistent and coordinated with the ICC family of Codes & Standards.  Applicable to the construction of

388

Advanced Systems of Efficient Use of Electrical Energy SURE (Smart Grid  

Open Energy Info (EERE)

Efficient Use of Electrical Energy SURE (Smart Grid Efficient Use of Electrical Energy SURE (Smart Grid Project) Jump to: navigation, search Project Name Advanced Systems of Efficient Use of Electrical Energy SURE Country Slovenia Coordinates 46.151241°, 14.995463° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":46.151241,"lon":14.995463,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

389

Advances in InGaAs/InP single-photon detector systems for quantum communication  

E-Print Network [OSTI]

Single-photon detectors (SPDs) are the most sensitive instruments for light detection. In the near-infrared range, SPDs based on III-V compound semiconductor avalanche photodiodes have been extensively used during the past two decades for diverse applications due to their advantages in practicality including small size, low cost and easy operation. In the past decade, the rapid developments and increasing demands in quantum information science have served as key drivers to improve the device performance of single-photon avalanche diodes and to invent new avalanche quenching techniques. This Review aims to introduce the technology advances of InGaAs/InP single-photon detector systems in the telecom wavelengths and the relevant quantum communication applications, and particularly to highlight recent emerging techniques such as high-frequency gating at GHz rates and free-running operation using negative-feedback avalanche diodes. Future perspectives of both the devices and quenching techniques are summarized.

Zhang, Jun; Zbinden, Hugo; Pan, Jian-Wei

2015-01-01T23:59:59.000Z

390

STATEMENT OF CONSIDERATIONS REQUEST BY A123 SYSTEMS, INC. FOR AN ADVANCE WAIVER OF DOMESTIC AND  

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

1187, W(A)-2011-038, CH-1616 1187, W(A)-2011-038, CH-1616 The Petitioner, A123 Systems, Inc (A123) was awarded this cooperative agreement for the performance of work entitled, "High Throughput Fabrication of 10-Year PHEV Battery Electrodes". The purpose of the agreement is to develop advanced manufacturing technology for high-energy lithium ion batteries suitable for PHEV applications. This effort focuses speCifically on several unit operations used in electrode fabrication. By increasing the solids loading and stability of electrode slurry of the fabrication process, the electrode cost will be reduced through the decrease of drying time and the elimination of solvent emissions. Controlling the moisture content will primarily benefit electrode cycle life. Increasing the throughput of the coating/drying operation, this objective will

391

Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks  

SciTech Connect (OSTI)

The Advanced Electric Systems and Aerodynamics for Efficiency Improvements in Heavy Duty Trucks program (DE-FC26-04NT42189), commonly referred to as the AES program, focused on areas that will primarily benefit fuel economy and improve heat rejection while driving over the road. The AES program objectives were to: (1) Analyze, design, build, and test a cooling system that provided a minimum of 10 percent greater heat rejection in the same frontal area with no increase in parasitic fan load. (2) Realize fuel savings with advanced power management and acceleration assist by utilizing an integrated starter/generator (ISG) and energy storage devices. (3) Quantify the effect of aerodynamic drag due to the frontal shape mandated by the area required for the cooling system. The program effort consisted of modeling and designing components for optimum fuel efficiency, completing fabrication of necessary components, integrating these components into the chassis test bed, completing controls programming, and performance testing the system both on a chassis dynamometer and on the road. Emission control measures for heavy-duty engines have resulted in increased engine heat loads, thus introducing added parasitic engine cooling loads. Truck electrification, in the form of thermal management, offers technological solutions to mitigate or even neutralize the effects of this trend. Thermal control offers opportunities to avoid increases in cooling system frontal area and forestall reduced fuel economy brought about by additional aerodynamic vehicle drag. This project explored such thermal concepts by installing a 2007 engine that is compliant with current regulations and bears additional heat rejection associated with meeting these regulations. This newer engine replaced the 2002 engine from a previous project that generated less heat rejection. Advanced power management, utilizing a continuously optimized and controlled power flow between electric components, can offer additional fuel economy benefits to the heavy-duty trucking industry. Control software for power management brings added value to the power distribution and energy storage architecture on board a truck with electric accessories and an ISG. The research team has built upon a previous truck electrification project, formally, 'Parasitic Energy Loss Reduction and Enabling Technologies for Class 7/8 Trucks', DE-FC04-2000AL6701, where the fundamental concept of electrically-driven accessories replacing belt/gear-driven accessories was demonstrated on a Kenworth T2000 truck chassis. The electrical accessories, shown in Figure 1, were controlled to provide 'flow on demand' variable-speed operation and reduced parasitic engine loads for increased fuel economy. These accessories also provided solutions for main engine idle reduction in long haul trucks. The components and systems of the current project have been integrated into the same Kenworth T2000 truck platform. Reducing parasitic engine loading by decoupling accessory loads from the engine and driving them electrically has been a central concept of this project. Belt or gear-driven engine accessories, such as water pump, air conditioning compressor, or air compressor, are necessarily tied to the engine speed dictated by the current vehicle operating conditions. These conventional accessory pumps are sized to provide adequate flow or pressure at low idle or peak torque speeds, resulting in excess flow or pressure at cruising or rated speeds. The excess flow is diverted through a pressure-minimizing device such as a relief valve thereby expending energy to drive unnecessary and inefficient pump operation. This inefficiency causes an increased parasitic load to the engine, which leads to a loss of usable output power and decreased fuel economy. Controlling variable-speed electric motors to provide only the required flow or pressure of a particular accessory system can yield significant increases in fuel economy for a commercial vehicle. Motor loads at relatively high power levels (1-5 kW, or higher) can be efficiently provided

Larry Slone; Jeffrey Birkel

2007-10-31T23:59:59.000Z

392

Advanced Thomson scattering system for high-flux linear plasma generator  

SciTech Connect (OSTI)

An advanced Thomson scattering system has been built for a linear plasma generator for plasma surface interaction studies. The Thomson scattering system is based on a Nd:YAG laser operating at the second harmonic and a detection branch featuring a high etendue (f /3) transmission grating spectrometer equipped with an intensified charged coupled device camera. The system is able to measure electron density (n{sub e}) and temperature (T{sub e}) profiles close to the output of the plasma source and, at a distance of 1.25 m, just in front of a target. The detection system enables to measure 50 spatial channels of about 2 mm each, along a laser chord of 95 mm. By summing a total of 30 laser pulses (0.6 J, 10 Hz), an observational error of 3% in n{sub e} and 6% in T{sub e} (at n{sub e}= 9.4 Multiplication-Sign 10{sup 18} m{sup -3}) can be obtained. Single pulse Thomson scattering measurements can be performed with the same accuracy for n{sub e} > 2.8 Multiplication-Sign 10{sup 20} m{sup -3}. The minimum measurable density and temperature are n{sub e} < 1 Multiplication-Sign 10{sup 17} m{sup -3} and T{sub e} < 0.07 eV, respectively. In addition, using the Rayleigh peak, superimposed on the Thomson scattered spectrum, the neutral density (n{sub 0}) of the plasma can be measured with an accuracy of 25% (at n{sub 0}= 1 Multiplication-Sign 10{sup 20} m{sup -3}). In this report, the performance of the Thomson scattering system will be shown along with unprecedented accurate Thomson-Rayleigh scattering measurements on a low-temperature argon plasma expansion into a low-pressure background.

Meiden, H. J. van der; Lof, A. R.; Berg, M. A. van den; Brons, S.; Eck, H. J. N. van; Koelman, P. M. J.; Koppers, W. R.; Kruijt, O. G.; Oyevaar, T.; Prins, P. R.; Rapp, J.; Scholten, J.; Smeets, P. H. M.; Star, G. van der; Zeijlmans van Emmichoven, P. A. [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Donne, A. J. H.; Schram, D. C. [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Eindhoven University of Technology, Eindhoven (Netherlands); Naumenko, N. N. [IPh NASB, Minsk (Belarus); Tugarinov, S. N. [SRC TRINITI, Troitsk, Moscow Reg. (Russian Federation)

2012-12-15T23:59:59.000Z

393

The Advanced Gamma-ray Imaging System (AGIS) Telescope Optical System Designs  

SciTech Connect (OSTI)

AGIS is a conceptual design for a future ground-based gamma-ray observatory operating in the energy range 25 GeV-100 TeV, which is based on an array of {approx}20-100 imaging atmospheric Cherenkov telescopes (IACTs). The desired improvement in sensitivity, angular resolution, and reliability of operation of AGIS imposes demanding technological and cost requirements on the design of the IACTs. We are considering several options for the optical system (OS) of the AGIS telescopes, which include the traditional Davies-Cotton design as well as novel two-mirror design. Emerging mirror production technologies based on replication processes such as cold and hot glass slumping, cured carbon fiber reinforced plastic (CFRP), and electroforming provide new opportunities for cost-effective solutions for the design of the OS.

Bugaev, V.; Buckley, J.; Krawczynski, H. [Washington University (United States); Diegel, S.; Romani, R. [Stanford University (United States); Falcone, A. [Penn State University (United States); Fegan, S.; Vassiliev, V. [UCLA (United States); Finley, J. [Purdue University (United States); Guarino, V. [ANL (United States); Hanna, D. [McGill University (Canada); Kaaret, P. [University of Iowa (United States); Konopelko, A. [Pittsburg State University (United States); Ramsey, B. [MSFC (United States); Weekes, T. [CfA (United States)

2008-12-24T23:59:59.000Z

394

Advance View Proofs Thermodynamic Description of the Mg-Mn, Al-Mn and Mg-Al-Mn Systems  

E-Print Network [OSTI]

Advance View Proofs Thermodynamic Description of the Mg-Mn, Al-Mn and Mg-Al-Mn Systems Using-consistent thermodynamic model of the Mg-Mn, Al-Mn and Mg-Al-Mn systems has been developed. The major difference between work on the Al-Mn system that uses the same model for the liquid phase reveals that better agreement

Medraj, Mamoun

395

Development of Computational Capabilities to Predict the Corrosion Wastage of Boiler Tubes in Advanced Combustion Systems  

SciTech Connect (OSTI)

A comprehensive corrosion research project consisting of pilot-scale combustion testing and long-term laboratory corrosion study has been successfully performed. A pilot-scale combustion facility available at Brigham Young University was selected and modified to enable burning of pulverized coals under the operating conditions typical for advanced coal-fired utility boilers. Eight United States (U.S.) coals were selected for this investigation, with the test conditions for all coals set to have the same heat input to the combustor. In addition, the air/fuel stoichiometric ratio was controlled so that staged combustion was established, with the stoichiometric ratio maintained at 0.85 in the burner zone and 1.15 in the burnout zone. The burner zone represented the lower furnace of utility boilers, while the burnout zone mimicked the upper furnace areas adjacent to the superheaters and reheaters. From this staged combustion, approximately 3% excess oxygen was attained in the combustion gas at the furnace outlet. During each of the pilot-scale combustion tests, extensive online measurements of the flue gas compositions were performed. In addition, deposit samples were collected at the same location for chemical analyses. Such extensive gas and deposit analyses enabled detailed characterization of the actual combustion environments existing at the lower furnace walls under reducing conditions and those adjacent to the superheaters and reheaters under oxidizing conditions in advanced U.S. coal-fired utility boilers. The gas and deposit compositions were then carefully simulated in a series of 1000-hour laboratory corrosion tests, in which the corrosion performances of different commercial candidate alloys and weld overlays were evaluated at various temperatures for advanced boiler systems. Results of this laboratory study led to significant improvement in understanding of the corrosion mechanisms operating on the furnace walls as well as superheaters and reheaters in coal-fired boilers resulting from the coexistence of sulfur and chlorine in the fuel. A new corrosion mechanism, i.e., Active Sulfidation Corrosion Mechanism, has been proposed to account for the accelerated corrosion wastage observed on the furnace walls of utility boilers burning coals containing sulfur and chlorine. In addition, a second corrosion mechanism, i.e., Active Sulfide-to-Oxide Corrosion Mechanism, has been identified to account for the rapid corrosion attack on superheaters and reheaters. Both of the newly discovered corrosion mechanisms involve the formation of iron chloride (FeCl2) vapor from iron sulfide (FeS) and HCl, followed by the decomposition of FeCl2 via self-sustaining cycling reactions. For higher alloys containing sufficient chromium, the attack on superheaters and reheaters is dominated by Hot Corrosion in the presence of a fused salt. Furthermore, two stages of the hot corrosion mechanism have been identified and characterized in detail. The initiation of hot corrosion attack induced by molten sulfate leads to Stage 1 acidic fluxing and re-precipitation of the protective scale formed initially on the deposit-covered alloy surfaces. Once the protective scale is penetrated, Stage 2 Hot Corrosion is initiated, which is dominated by basic fluxing and re-precipitation of the scale in the fused salt. Based on the extensive corrosion information generated from this project, corrosion modeling was performed using non-linear regression analysis. As a result of the modeling efforts, two predictive equations have been formulated, one for furnace walls and the other for superheaters and reheaters. These first-of-the-kind equations can be used to estimate the corrosion rates of boiler tubes based on coal chemistry, alloy compositions, and boiler operating conditions for advanced boiler systems.

Kung, Steven; Rapp, Robert

2014-08-31T23:59:59.000Z

396

The California Advanced Lighting Controls Training Program (CALCTP)  

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

The California Advanced Lighting Controls Training Program (CALCTP) The California Advanced Lighting Controls Training Program (CALCTP) Speaker(s): Bernie Kotlier Date: March 2, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Sila Kiliccote CALCTP is a broad based partnership that is dedicated to advancing the California State policy of energy conservation as the first priority for serving the state's future energy needs. CALCTP is supported, operated and directed by representatives of the California Lighting Technology Center, the California Energy Commission, the California Community College system, investor owned utilities, municipal utilities, electrical contractors, electrical workers, and manufacturers of advanced, high efficiency lighting and lighting control systems. The mission of the California Advanced Lighting Controls Training Program (CALCTP) is to make

397

Industrial advanced turbine systems: Development and demonstration. Quarterly report, January 1--March 31, 1998  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has initiated a program for advanced turbine systems (ATS) that will serve industrial power generation markets. The objective of the cooperative agreements granted under the program is to join the DOE with industry in research and development that will lead to commercial offerings in the private sector. The ATS will provide ultra-high efficiency, environmental superiority, and cost competitiveness. The ATS will foster (1) early market penetration that enhances the global competitiveness of US industry, (2) public health benefits resulting from reduced exhaust gas emissions of target pollutants, (3) reduced cost of power used in the energy-intensive industrial marketplace, and (4) the retention and expansion of the skilled US technology base required for the design, development and maintenance of state-of-the-art advanced turbine products. The Industrial ATS Development and Demonstration program is a multi-phased effort. Solar Turbines Incorporated (Solar) has participated in Phases 1 and 2 of the program. On September 14, 1995 Solar was awarded a Cooperative Agreement for Phases 3 and 4 of the program. Phase 3 of the work is separated into two subphases: Phase 3A entails Component Design and Development; Phase 3B will involve Integrated Subsystem Testing. Phase 4 will cover Host Site Testing. As of the end of the reporting period work on the program is 29.1% complete (24.7% last quarter). Work on the Mercury 50 development and ATS technology development portions of the program (WBS 10000 et seq) is 48.9% complete (41.6% last quarter). Estimates of percent complete are based upon milestones completed. In order to maintain objectivity in assessing schedule progress, Solar uses a 0/100 percent complete assumption for milestones rather than subjectively estimating progress toward completion of milestones. Cost and schedule variance information is provided in Section 4.0 Program Management.

NONE

1998-08-01T23:59:59.000Z

398

Qualification issues associated with the use of advanced instrumentation and control systems hardware in nuclear power plants  

SciTech Connect (OSTI)

The instrumentation and control (I&C) systems in advanced reactors will make extensive use of digital controls, microprocessors, multiplexing, and Tiber-optic transmission. Elements of these advances in I&C have been implemented on some current operating plants. However, the widespread use of the above technologies, as well as the use of artificial intelligence with minimum reliance on human operator control of reactors, highlights the need to develop standards for qualifying I&C used in the next generation of nuclear power plants. As a first step in this direction, the protection system I&C for present-day plants was compared to that proposed for advanced light water reactors (ALWRs). An evaluation template was developed by assembling a configuration of a safety channel instrument string for a generic ALWR, then comparing the impact of environmental stressors on that string to their effect on an equivalent instrument string from an existing light water reactor. The template was then used to address reliability issues for microprocessor-based protection systems. Standards (or lack thereof) for the qualification of microprocessor-based safety I&C systems were also identified. This approach addresses in part issues raised in Nuclear Regulatory Commission policy document SECY-91-292. which recognizes that advanced I&C systems for the nuclear industry are ``being developed without consensus standards, as the technology available for design is ahead of the technology that is well understood through experience and supported by application standards.``

Korsah, K. [Oak Ridge National Lab., TN (United States); Antonescu, C. [Nuclear Regulatory Commission, Rockville, MD (United States). Office of Nuclear Regulatory Research

1993-10-01T23:59:59.000Z

399

TOPIC TIME LOCATION CATEGORY TITLE AUTHORS INSTITUTION Advanced Energy Systems 10:15 to 10:35 AM BA1180 CSME  

E-Print Network [OSTI]

microorganisms P. Graham, D.Sinton University of Toronto Advanced Energy Systems 2:35 to 2:55 PM BA1180 CSME

400

Advanced turbine systems (ATS) program conceptual design and product development. Quarterly report, September 1 - November 30, 1994  

SciTech Connect (OSTI)

Achieving the advanced turbine system goals of 60% efficiency, 8 ppmvd NOx, and 10% electric power cost reduction imposes competing characteristics on the gas turbine system: the turbine inlet temperature must increase, although this will lead to increased NOx emission. Improved coating and materials along with creative combustor design can result in solutions. The program is focused on two specific products: a 70 MW class industrial gas turbine based on GE90 core technology utilizing an innovative air cooling methodology, and a 200 MW class utility gas turbine based on an advanced GE heavy duty machines utilizing advanced cooling and enhancement in component efficiency. This report reports on tasks 3-8 for the industrial ATS and the utility ATS. Some impingement heat transfer results are given.

NONE

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Hydride-dehydride module within ARIES (Advanced Recovery and Integrated Extraction System)  

SciTech Connect (OSTI)

One of the many requirements placed on the DOE is the reduction of the nuclear stockpile through dismantlement programs. The DOE Office of Fissile Materials Disposition (OFMD) has been tasked with the disposition of excess plutonium and other fissile materials. On the list of items containing excess fissile materials are nuclear weapon cores, pits. The Advanced Recovery and integrated Extraction System (ARIES) at Los Alamos National Laboratory is the pit disassembly and conversion demonstration line that is being used to gather data to support the design of the full scale pit disassembly and conversion facility. The Hydride Dehydride recycle system is an important element to this program, because it provides these dismantlement programs with a technology for removing plutonium from nuclear weapons without producing large amounts of waste compared to historical processes used in the DOE complex. The Hydride Dehydride recycle process can separate plutonium from other weapons components resulting in an unclassified plutonium metal button. After separation, this button can be stored in long term storage containers or processed to produce plutonium oxide, which will be used by either of the plutonium disposition options, mixed oxide fuel burning in a nuclear reactor or immobilization. Once placed into long term storage containers, either the plutonium metal or plutonium oxide can be inspected by bilateral or international agencies to invoke transparency of the plutonium.

Flamm, B.F.; Isom, G.M.; Nelson, T.O.

1998-12-31T23:59:59.000Z

402

Design And Development Of Small Wind Energy Systems Is A Soft Path For Power Generation And Environment Conservation For Off Grid Applications In India.  

E-Print Network [OSTI]

ABSTRACT: This paper describes the design a new evolving electrical power generation system with small wind turbine. Which offer solutions to meet local energy requirements of a specific location. Energy conservation decreases energy requirements, promotes energy efficiency and facilitates development of renewable. Wind energy dominates as an immediate viable cost effective option which promotes energy conservation and avoids equivalent utilization of fossil fuels and avoids million ton of green house gas emission causing ozone depletion and other environmental impacts like global warming. This paper gives an over view about the current status and a possible development for small wind turbines for off grid applications in India. KEY WORDS: wind energy, wind power generation system, wind sensor, Energy resources, and wind

unknown authors

403

Advanced Turbine Systems (ATS) program conceptual design and product development. Quarterly report, December 1, 1994--February 28, 1995  

SciTech Connect (OSTI)

Achieving the advanced turbine system goals of 60% efficiency, 8 ppmvd NOx and 10% electric power cost reduction imposes competing characteristics on the gas turbine system. Two basic technical issues arise from this. The turbine inlet temperature of the gas turbine must increase to achieve both efficiency and cost goals. However, higher temperatures move in the direction of increased NOx emission. Improved costing and materials technologies along with creative combustor design can result in solutions to achieve the ultimate goal. The GE Advanced Gas Turbine Development program is focused on two specific products: (1) a 70 MW class industrial gas turbine based on the GE90 core technology utilizing an innovative air cooling methodology; (2) a 200 MW class utility gas turbine based on an advanced GE heavy duty machines utilizing advanced cooling and enhancement in component efficiency. Both of these activities require the identification and resolution of technical issues critical to achieving Advanced Turbine System (ATS) goals. The emphasis for the industrial ATS will be placed upon innovative cycle design and low emission combustion. The emphasis for the utility ATS will be placed upon innovative cycle design and low emission combustion. The emphasis for the utility ATS will be placed on developing a technology base for advanced turbine cooling while utilizing demonstrated and planned improvements in low emissions combustion. Significant overlap in the development programs will allow common technologies to be applied to both products. GE`s Industrial and Power Systems is solely responsible for offering Ge products for the industrial and utility markets. The GE ATS program will be managed fully by this organization with core engine technology being supplied by GE Aircraft Engines (GEAE) and fundamental studies supporting both product developments being conducted by GE Corporate Research and Development (CRD).

NONE

1995-12-31T23:59:59.000Z

404

Noise and Hearing Conservation  

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

Hearing Conservation Hearing Conservation Mary L. Doyle NOISE & HEARING CONSERVATION Mary L. Doyle, MPH, RN, COHN-S/CM DOE Headquarters January 16, 2002 1.0.1.~ CAUSES OF HEARING LOSS * Congenital * Environmental Exposures * Hereditary * Illness *Injury * Noise * Occupational * Non-Occupational * Sociacusis S.O.S. eon.ua.nt. OTOTOXIC DRUGS Can Affect Cochlea or Vestibular System * Aminoglycoside Antibiotics * Diuretics * Cancer Chemotherapy * Aspirin * Quinines * Usually Permanent * Consider Benefit-Risk Ratio S.O.S. eon.ua.nts HEARING * Modification of Acoustic Wave by Outer Ear * Conversion of Modified Acoustic Wave to Vibration of Eardrum * Middle Ear * Inner Ear * Transformation of Mechanical Movement to Nerve Impulses S.O.S. CoMubRis OTOTOXIC INDUSTRIAL

405

Energy Conservation  

Science Journals Connector (OSTI)

...planning for the total life cycle in the use of resources, to...Smoothing the daily demand cycle in order to reduce heavy peak...problems at both applied and fundamental levels. The more promising...power include advanced power cycles, mag-netohydrodynamics...

G. A. Lincoln

1973-04-13T23:59:59.000Z

406

E-Print Network 3.0 - advanced turbine systems-research Sample...  

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

models and advanced control strategies... .139) Track: Technical VARIABLE SPEED WIND TURBINES - FAULT RIDE-THROUGH AND GRID SUPPORT CAPABILITIES... is on the fault ride through...

407

E-Print Network 3.0 - advanced technology systems Sample Search...  

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

of Manitoba Collection: Engineering ; Biology and Medicine 66 Kompetenzzentrum fr Automobil-und Industrieelektronik Summary: of materials for these advanced semiconductor...

408

Advanced Thin Film Thermoelectric Systems forEfficient Air-Conditioners  

Broader source: Energy.gov [DOE]

Presents recent advances in thermoelectric device fabrication and the design of novel cooling/heating engines exploiting thermal storage for efficient air-conditioners in automobiles

409

Energy Department Announces Projects to Advance Cost-Effective Concentrating Solar Power Systems  

Broader source: Energy.gov [DOE]

The Energy Department today announced $10 million for six new research and development projects that will advance innovative concentrating solar power (CSP) technologies. The projects will develop...

410

Energy Department Announces Projects to Advance Cost-Effective Concentrating Solar Power Systems  

Office of Energy Efficiency and Renewable Energy (EERE)

The Energy Department today announced $10 million for six new research and development projects that will advance innovative concentrating solar power (CSP) technologies.

411

Field Equations and Conservation Laws Derived from the Generalized Einstein Lagrangian Density for A Gravitational System and Their Implications to Cosmology  

E-Print Network [OSTI]

Based on investigations of the fundamental properties of the generalized Einstein Lagrangian density for a gravitational system, the theoretical foundations of the modified Einstein field equations and the Lorentz and Levi-Civita conservation laws are systematically studied. The theory of cosmology developed on the basis of these equations and laws is analyzed in detail. Some new properties and new effects of the cosmos are deduced; these new properties and new effects could be tested via future experiments and observations.

Fang-Pei Chen

2007-03-10T23:59:59.000Z

412

Farm-level simulation of alternative resource-conserving production systems for representative crop farms in the Northern Texas High Plains  

E-Print Network [OSTI]

irrigated and dryland conditions, and sprinkler irrigation with and without a low energy precision application (LEPA) system. With dryland conditions, participation in the Conservation Reserve Program was evaluated. Farm situations werc. simulated over a... farm program provisions. This latter assumption was adopted in order to assess potential of alternative crop rotations. ACKNOWLEDGEMENTS I express my sincere appreciation to Dr. James W. Richardson, my advisor and chairman of the committee...

De Brey, Cristobal J.

1991-01-01T23:59:59.000Z

413

AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo, Manager, Heat Exchange Systems Research  

E-Print Network [OSTI]

#12;AN OPTIMIZED TWO-CAPACITY ADVANCED ELECTRIC HEAT PUMP S. E. Veyo S. E. Veyo, Manager, Heat Exchange Systems Research Westinghouse Electric Corporation, R&D Center 1310 Beulah Road Pittsburgh, PA 15235 KEYWORDS: heat pump, air conditioner, electric, residential, energy, compressor, fan, blower, heat

Oak Ridge National Laboratory

414

DOE`s high performance power systems program: Development of advanced coal-fired combined-cycle systems  

SciTech Connect (OSTI)

Coal currently provides more than one third of the world`s electricity and more than one half of the US`s electricity. However, for coal to be the fuel of choice in the future, highly efficient, environmentally acceptable, and economically competitive, coal-fired power plants are needed. The US Department of Energy, Federal Energy Technology Center, under its High Performance Power Systems (HIPPS) Program, has two contracts in place, one with Foster Wheeler Development Corporation and one with United Technologies Research Center, to develop advanced power generation systems. Based on an indirectly fired cycle, HIPPS uses a combined cycle for power generation at efficiencies of 47--50% (HHV) with superior environmental performance (1/10 of New Source Performance Standards) and a lower cost-of-electricity (10% reduction relative to current coal-fired plants). HIPPS, scheduled to be ready for commercialization by the year 2005, could provide a solution to the anticipated worldwide demand for clean, efficient electricity generation. In this paper, the two HIPPS designs are reviewed and on-going research is discussed.

Ruth, L.; Plasynski, S.; Shaffer, F. [Dept. of Energy, Pittsburgh, PA (United States). Federal Energy Technology Center; Ramezan, M. [Burns and Roe Services Corp., Pittsburgh, PA (United States)

1997-09-01T23:59:59.000Z

415

Scoping Studies to Evaluate the Benefits of an Advanced Dry Feed System on the Use of Low-Rank Coal  

SciTech Connect (OSTI)

The purpose of this project was to evaluate the ability of advanced low rank coal gasification technology to cause a significant reduction in the COE for IGCC power plants with 90% carbon capture and sequestration compared with the COE for similarly configured IGCC plants using conventional low rank coal gasification technology. GEs advanced low rank coal gasification technology uses the Posimetric Feed System, a new dry coal feed system based on GEs proprietary Posimetric Feeder. In order to demonstrate the performance and economic benefits of the Posimetric Feeder in lowering the cost of low rank coal-fired IGCC power with carbon capture, two case studies were completed. In the Base Case, the gasifier was fed a dilute slurry of Montana Rosebud PRB coal using GEs conventional slurry feed system. In the Advanced Technology Case, the slurry feed system was replaced with the Posimetric Feed system. The process configurations of both cases were kept the same, to the extent possible, in order to highlight the benefit of substituting the Posimetric Feed System for the slurry feed system.

Rader, Jeff; Aguilar, Kelly; Aldred, Derek; Chadwick, Ronald; Conchieri, John; Dara, Satyadileep; Henson, Victor; Leininger, Tom; Liber, Pawel; Liber, Pawel; Lopez-Nakazono, Benito; Pan, Edward; Ramirez, Jennifer; Stevenson, John; Venkatraman, Vignesh

2012-03-30T23:59:59.000Z

416

Steam Conservation and Boiler Plant Efficiency Advancements  

E-Print Network [OSTI]

leakage is controlled by daily monitoring of make-up water volume. All recent heating water distribution projects have utilized above-ground, fiberglass insulated piping on elevated pipe support structures in order to avoid the potential corrosion...-insulated piping on elevated pipe support structures in order to avoid the potential corrosion and leakage issues associated with underground steam distribution. STEAM COST The remaining challenge was to minimize annual steam costs in order to enhance...

Fiorino, D. P.

417

A consistent and conservative scheme for MHD flows with complex boundaries on an unstructured Cartesian adaptive system  

SciTech Connect (OSTI)

The numerical simulation of Magnetohydrodynamics (MHD) flows with complex boundaries has been a topic of great interest in the development of a fusion reactor blanket for the difficulty to accurately simulate the Hartmann layers and side layers along arbitrary geometries. An adaptive version of a consistent and conservative scheme has been developed for simulating the MHD flows. Besides, the present study forms the first attempt to apply the cut-cell approach for irregular wall-bounded MHD flows, which is more flexible and conveniently implemented under adaptive mesh refinement (AMR) technique. It employs a Volume-of-Fluid (VOF) approach to represent the fluidconducting wall interface that makes it possible to solve the fluidsolid coupling magnetic problems, emphasizing at how electric field solver is implemented when conductivity is discontinuous in cut-cell. For the irregular cut-cells, the conservative interpolation technique is applied to calculate the Lorentz force at cell-center. On the other hand, it will be shown how consistent and conservative scheme is implemented on fine/coarse mesh boundaries when using AMR technique. Then, the applied numerical schemes are validated by five test simulations and excellent agreement was obtained for all the cases considered, simultaneously showed good consistency and conservative properties.

Zhang, Jie; Ni, Ming-Jiu, E-mail: mjni@ucas.ac.cn

2014-01-01T23:59:59.000Z

418

Advanced Power Electronic Interfaces for Distributed Energy Systems, Part 2: Modeling, Development, and Experimental Evaluation of Advanced Control Functions for Single-Phase Utility-Connected Inverter  

SciTech Connect (OSTI)

Integrating renewable energy and distributed generations into the Smart Grid architecture requires power electronic (PE) for energy conversion. The key to reaching successful Smart Grid implementation is to develop interoperable, intelligent, and advanced PE technology that improves and accelerates the use of distributed energy resource systems. This report describes the simulation, design, and testing of a single-phase DC-to-AC inverter developed to operate in both islanded and utility-connected mode. It provides results on both the simulations and the experiments conducted, demonstrating the ability of the inverter to provide advanced control functions such as power flow and VAR/voltage regulation. This report also analyzes two different techniques used for digital signal processor (DSP) code generation. Initially, the DSP code was written in C programming language using Texas Instrument's Code Composer Studio. In a later stage of the research, the Simulink DSP toolbox was used to self-generate code for the DSP. The successful tests using Simulink self-generated DSP codes show promise for fast prototyping of PE controls.

Chakraborty, S.; Kroposki, B.; Kramer, W.

2008-11-01T23:59:59.000Z

419

Advanced furnace air staging and burner modifications for ultra-low NOx firing systems  

SciTech Connect (OSTI)

Overfire air is an effective means to reduce NOx emissions from coal fired furnaces. The current range of overfire air usage on wall-fired boilers in the US is in the range of 10 to 20%. In most cases this is enough to achieve current Title IV NOx reduction requirements. Future applications are likely to go beyond 20% Overfire Air to reduce NOx further for lower investment and operating costs of SCR retrofits. Summer ozone reduction requires NOx emissions of 0.15 lb/MBtu. Currently, industry is exploring the conditions under which this goal is attainable. The paper discussed the approach to achieve ultra-low NOx emissions by using advanced furnace air staging. It describes the unique approach of redesigning the burner to maintain low NOx burner performance when the overfire air system is added or increased in capacity. The impact on furnace corrosion and unburned carbon losses are presented. A case study is used to show the effects of overfire air both on emissions and unburned carbon.

McCarthy, K.; Laux, S.; Grusha, J.

1999-07-01T23:59:59.000Z

420

Safety Design Strategy for the Advanced Test Reactor Emergency Firewater Injection System Replacement Project  

SciTech Connect (OSTI)

In accordance with the requirements of U.S. Department of Energy (DOE) Order 413.3B, Program and Project Management for the Acquisition of Capital Assets, safety must be integrated into the design process for new or major modifications to DOE Hazard Category 1, 2, and 3 nuclear facilities. The intended purpose of this requirement involves the handling of hazardous materials, both radiological and chemical, in a way that provides adequate protection to the public, workers, and the environment. Requirements provided in DOE Order 413.3B and DOE Order 420.1B, Facility Safety, and the expectations of DOE-STD-1189-2008, Integration of Safety into the Design Process, provide for identification of hazards early in the project and use of an integrated team approach to design safety into the facility. This safety design strategy provides the basic safety-in-design principles and concepts that will be used for the Advanced Test Reactor Reliability Sustainment Project. While this project does not introduce new hazards to the ATR, it has the potential for significant impacts to safety-related systems, structures, and components that are credited in the ATR safety basis and are being replaced. Thus the project has been determined to meet the definition of a major modification and is being managed accordingly.

Noel Duckwitz

2011-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "advanced conservation systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Energy Efficiency and Conservation Block Grant Program  

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

FL-City-Cape Coral FL-City-Cape Coral Location: City Cape Coral FL American Recovery and Reinvestment Act: Proposed Action or Project Description 1) Energy efficiency and conservation strategy program management and associated engineering work; 2) energy and greenhouse gas baseline study and reporting system; 3-6) conduct various energy productivity studies to accomplish energy program management; 7) implement wastewater infiltration reduction measures; 8) HVAC efficiency improvements at City Hall (controls, variable frequency drives, direct digital controls, direct exchange air conditioning system, electrical engineering monitoring, etc.); 9) HVAC efficiency improvements at the Emergency Operations Center (install direct digital controls, reduce design of exhaust and ventilation air flow rates, install demand control ventilation, etc.); and 10) install advanced

422

Advanced Heat Exchanger Development for Molten Salts in Nuclear and Non Nuclear Systems  

SciTech Connect (OSTI)

This study addresses present work concerned with advanced heat exchanger development for molten salt in nuclear and non nuclear thermal systems. The molten salt systems discussed herein use alloys, such as Hastelloy N and 242, which show corrosion resistance to molten salt at nominal operating temperatures up to 700C. These alloys were diffusion welded, and the corresponding information is presented. Test specimens were prepared for exposing diffusion welds to molten salt environments. Hastelloy N and 242 were found to be weldable by diffusion welding, with ultimate tensile strengths about 90% of base metal values. Both diffusion welds and sheet material in Hastelloy N were corrosion tested in?58 mol% KF and 42 mol% ZrF4 at 650, 700, and 850C for 200, 500, and 1,000 hours. Corrosion rates found were similar between welded and nonwelded materials, typically <10 mils per year. For materials of construction, nickel and alloys with dense nickel coatings are effectively inert to corrosion in fluorides, but not so in chlorides. Hence, additional testing of selected alloys for resistance to intergranular corrosion is needed, as is a determination of corrosion rate as a function of contaminant type and alloy composition with respect to chromium and carbon to better define the optimal chromium and carbon composition, independent of galvanic or differential solubility effects. Also presented is the division of the nuclear reactor and high temperature components per ASME standards, along with design requirements for a subcritical Rankine power cycle heat exchanger that has to overcome pressure difference of about 17 MPa.

Piyush Sabharwall; Denis Clark; Kumar Sridharan; Guiqiu Zheng; Mark Anderson

2014-10-01T23:59:59.000Z

423

Upgrading of low-rank coals for conventional and advanced combustion systems  

SciTech Connect (OSTI)

Low-rank coals, subbituminous, lignitic, and brown coals, have a ubiquitous presence in the world, being found in all continents. Close to half of the world`s estimated coal resources are low- rank coals. Many countries have no alternative economic source of energy. In the lower 48 states of the United States, there are 220 billion tons of economically recoverable reserves of lignite and subbituminous coal. Add to this quantity 5 trillion tons of predominantly subbituminous coal in Alaska, and the combined amount represents the largest supply of the lowest-cost fuels available for generating electric power in the United States. However, to use these coals cost-effectively and in an environmentally acceptable way, it is imperative that their properties and combustion/gasification behavior be well understood. The Energy and Environmental Research Center (EERC) takes a cradle-to-grave approach (i.e., mining, precleaning, combustion/gasification, postcleaning, and reuse and disposal of residues) for all aspects of coal processing and utilization. The environmental impact of these activities must be matched with the appropriate technologies. Experience over many years has shown that variations in coal and ash properties have a critical impact on design, reliability and efficiency of operation, and environmental compliance when low-rank coals are burned in conventional systems. This chapter reviews the significant technical issues of beneficiation, which includes reduction in moisture as well as ash (including sulfur), in relation to low-rank coal properties and their impact on conventional and advanced power systems. Finally, the development and utilization of low-rank coal resources are briefly discussed in view of policy, economic, and strategic issues.

Young, B.C.; Musich, M.A.; Jones, M.L.

1993-12-31T23:59:59.000Z

424

FY-2011 Status Report for Thermodynamics and Kinetics of Advanced Separations Systems  

SciTech Connect (OSTI)

This report presents a summary of the work performed in the area of thermodynamics and kinetics of advanced separations systems under the Fuel Cycle Research and Development (FCR&D) program during FY 2011 at the INL. On the thermodynamic front, investigations of liquid-liquid distribution of lanthanides at TALSPEAK-related conditions continued in FY11. It has been determined that a classical ion-exchanging phase transfer mechanism, where three HDEHP dimers solvate the metal ion in the organic phase, dominates metal extraction for systems that contain up to 0.1 M free lactate in solution. The correct graphical interpretation of the observed data in those regions relied on incorporating corrections for non-ideal behavior of HDEHP dimer in aliphatic diluents as well as sodium extraction equilibria. When aqueous conditions enter the complex regions of high lactate concentrations, slope analysis is no longer possible. When normalized metal distribution ratios were studied along the increasing concentration of free lactate, a slope of -1 was apparent. Such dependency either indicates aqueous complexing competition from lactate, or, a more likely scenario, a participation of lactate in the extracted metal complex. This finding agrees with our initial assessment of postulated changes in the extraction mechanism as a source of the lactate-mediated loss of extraction efficiency. The observed shape in the lanthanide distribution curve in our studies of TALSPEAK systems was the same for solutions containing no lactate or 2.3 M lactate. As such we may conclude that the mechanism of phase transfer is not altered dramatically and remains similarly sensitive to effective charge density of the metal ion. In addition to these thermodynamics studies, this report also summarizes the first calorimetric determination of heat of extraction of 248Cm in a bi-phasic system. The heat of extraction measured by isothermal titration calorimetry is compared to that determined using van't Hoff calculations. Further investigations on the kinetics of extraction in TALSPEAK with macro quantities of lanthanides present in the initial aqueous phase composition have been performed. These results have been summarized and compared to previous work performed for FCR&D. In addition, the effects of HDEHP concentration in the organic phase on europium extraction have been studied.

Leigh R. Martin; Peter R. Zalupski; Travis S. Grimes

2011-09-01T23:59:59.000Z

425

Commutation Relations and Conservation Laws  

Science Journals Connector (OSTI)

The response of a physical system to external electromagnetic and gravitational fields, as embodied in the electric current and stress tensor conservation laws, is used to derive the equal-time commutation relations for charge density and energy density.

Julian Schwinger

1963-04-01T23:59:59.000Z

426

Utility advanced turbine systems (ATS) technology readiness testing and pre-commercial demonstration. Quarterly report, April 1--June 30, 1997  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which will be sited and operated in Phase 4. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown. This report summarizes work accomplished in 2Q97.

NONE

1997-12-31T23:59:59.000Z

427

Utility advanced turbine systems (ATS) technology readiness testing and pre-commercial demonstration. Quarterly report, January 1--March 31, 1997  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which will be sited and operated in Phase 4. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown. This report summarizes work accomplished in 1Q97.

NONE

1997-12-31T23:59:59.000Z

428

Utility Advanced Turbine Systems (ATS) technology readiness testing and pre-commercialization demonstration. Quarterly report, October 1--December 31, 1996  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the U.S. Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system, which will be sited and operated in Phase 4. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue.

NONE

1997-06-01T23:59:59.000Z

429

Utility advanced turbine systems (ATS) technology readiness testing -- Phase 3. Annual report, October 1, 1996--September 30, 1997  

SciTech Connect (OSTI)

The overall objective of the Advanced Turbine System (ATS) Phase 3 Cooperative Agreement between GE and the US Department of Energy (DOE) is the development of the GE 7H and 9H combined cycle power systems. The major effort will be expended on detail design. Validation of critical components and technologies will be performed including: hot gas path component testing, sub-scale compressor testing, steam purity test trials, and rotational heat transfer confirmation testing. Processes will be developed to support the manufacture of the first system. Technology enhancements that are not required for the first machine design but will be critical for future ATS advances in performance, reliability, and costs will be initiated. Long-term tests of materials to confirm design life predictions will continue. A schematic of the GE H machine is shown.

NONE

1997-12-31T23:59:59.000Z

430

Variation and removal efficiency of assimilable organic carbon (AOC) in an advanced water treatment system  

Science Journals Connector (OSTI)

This study investigates the microorganism growth indicator and determines the assimilable organic carbon (AOC) content at the Cheng-Ching Lake Advanced ... (CCLAWTP) in Kaohsiung, Taiwan. Notably, AOC is associat...

Jie-Chung Lou; Bi-Hsiang Chen; Ting-Wei Chang

2011-07-01T23:59:59.000Z

431

Task 2: Materials for Advanced Boiler and Oxy-combustion Systems  

SciTech Connect (OSTI)

Characterize advanced boiler (oxy-fuel combustion, biomass cofired) gas compositions and ash deposits Generate critical data on the effects of environmental conditions; develop a unified test method with a view to future standardisation

G. R. Holcomb and B. McGhee

2009-05-01T23:59:59.000Z

432

REQUEST BY INGERSOLL-RAND ENERGY SYSTEMS, INC., FOR AN ADVANCE  

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

FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN SUBJECT INVENTIONS MADE IN THE COURSE OF OR UNDER SUBCONTRACT NO. 4000009528 UNDER DOE PRIME CONTRACT NO. DE-AC05-00OR22725;...

433

LABORATORY I: CONSERVATION OF ENERGY AND HEAT  

E-Print Network [OSTI]

Lab I - 1 LABORATORY I: CONSERVATION OF ENERGY AND HEAT In 1101 labs, you used conservation are in thermal equilibrium · Use the latent heat to determine the internal energy change of a system during conservation of energy, you can then determine the metal's specific heat. However, you know that some energy

Minnesota, University of

434

Advanced Hybrid Propulsion and Energy Management System for High Efficiency, Off Highway, 240 Ton Class, Diesel Electric Haul Trucks  

SciTech Connect (OSTI)

The objective of this project is to reduce the fuel consumption of off-highway vehicles, specifically large tonnage mine haul trucks. A hybrid energy storage and management system will be added to a conventional diesel-electric truck that will allow capture of braking energy normally dissipated in grid resistors as heat. The captured energy will be used during acceleration and motoring, reducing the diesel engine load, thus conserving fuel. The project will work towards a system validation of the hybrid system by first selecting an energy storage subsystem and energy management subsystem. Laboratory testing at a subscale level will evaluate these selections and then a full-scale laboratory test will be performed. After the subsystems have been proven at the full-scale lab, equipment will be mounted on a mine haul truck and integrated with the vehicle systems. The integrated hybrid components will be exercised to show functionality, capability, and fuel economy impacts in a mine setting.

Richter, Tim; Slezak, Lee; Johnson, Chris; Young, Henry; Funcannon, Dan

2008-12-31T23:59:59.000Z

435

Conserving Energy | Department of Energy  

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

Energy Assurance » Emergency Preparedness » Community Energy Assurance » Emergency Preparedness » Community Guidelines » Conserving Energy Conserving Energy Conserving Energy During an energy emergency, customers can reduce stress on infrastructure by conserving energy. This will help you and your community recover more quickly. Officials can ask the public to conserve energy, including: Cutting back on driving, using public transportation, and telecommuting when possible; Refraining from using non-essential lights and appliances, especially during peak hours (typically around 4:00-6:00 p.m.); and Lowering thermostat and water heating settings. Officials can ask transmission operators to activate demand-response programs in regions where those programs have been established. Under these programs, end-users are compensated to reduce their demand on the system

436

Scoping Studies to Evaluate the Benefits of an Advanced Dry Feed System on the Use of Low-Rank Coal  

SciTech Connect (OSTI)

This report describes the development of the design of an advanced dry feed system that was carried out under Task 4.0 of Cooperative Agreement DE-FE0007902 with the US DOE, Scoping Studies to Evaluate the Benefits of an Advanced Dry Feed System on the use of Low- Rank Coal. The resulting design will be used for the advanced technology IGCC case with 90% carbon capture for sequestration to be developed under Task 5.0 of the same agreement. The scope of work covered coal preparation and feeding up through the gasifier injector. Subcomponents have been broken down into feed preparation (including grinding and drying), low pressure conveyance, pressurization, high pressure conveyance, and injection. Pressurization of the coal feed is done using Posimetric1 Feeders sized for the application. In addition, a secondary feed system is described for preparing and feeding slag additive and recycle fines to the gasifier injector. This report includes information on the basis for the design, requirements for down selection of the key technologies used, the down selection methodology and the final, down selected design for the Posimetric Feed System, or PFS.

Rader, Jeff; Aguilar, Kelly; Aldred, Derek; Chadwick, Ronald; Conchieri,; Dara, Satyadileep; Henson, Victor; Leininger, Tom; Liber, Pawel; Nakazono, Benito; Pan, Edward; Ramirez, Jennifer; Stevenson, John; Venkatraman, Vignesh

2012-11-30T23:59:59.000Z

437

Technology in water conservation  

E-Print Network [OSTI]

through water conservation, introduction of new technology does not automati- cally result in water savings. #27;e new evapotrans- piration-based irrigation controllers illustrate the point. A lawn?s need for water is dependent on the weather... conditions. #27;e new controllers link operation of the sprinkler system to weather conditions collected on site or through an ongoing feed from radio- or web-based data. If businesses and homeowners are over-watering lawns, the technology could result...

Finch, Dr. Calvin

2013-01-01T23:59:59.000Z

438

Advanced Photovoltaic Inverter Functionality using 500 kW Power Hardware-in-Loop Complete System Laboratory Testing: Preprint  

SciTech Connect (OSTI)

With the increasing penetration of distribution connected photovoltaic (PV) systems, more and more PV developers and utilities are interested in easing future PV interconnection concerns by mitigating some of the impacts of PV integration using advanced PV inverter controls and functions. This paper describes the testing of a 500 kW PV inverter using Power Hardware-in-Loop (PHIL) testing techniques. The test setup is described and the results from testing the inverter in advanced functionality modes, not commonly used in currently interconnected PV systems, are presented. PV inverter operation under PHIL evaluation that emulated both the DC PV array connection and the AC distribution level grid connection are shown for constant power factor (PF) and constant reactive power (VAr) control modes. The evaluation of these modes was completed under varying degrees of modeled PV variability.

Mather, B. A.; Kromer, M. A.; Casey, L.

2013-01-01T23:59:59.000Z

439

Advanced Gas Turbine Systems Research, Technical Quarterly Progress Report. October 1, 1998--December 31, 1998  

SciTech Connect (OSTI)

Major accomplishments during this reporting period by the Advanced Gas Turbine Systems Research (AGTSR) are: AGTSR submitted FY99 program continuation request to DOE-FETC for $4M; AGTSR submitted program and workshop Formation to the Collaborative Advanced Gas Turbine (CAGT) initiative; AGTSR distributed research accomplishment summaries to DOE-FETC in the areas of combustion, aero-heat transfer, and materials; AGTSR reviewed and cleared research papers with the IRB from Arizona State, Cornell, Wisconsin, Minnesota, Pittsburgh, Clemson, Texas and Georgia Tech; AGTSR prepared background material for DOE-FETC on three technology workshops for distribution at the DOE-ATS conference in Washington, DC; AGTSR coordinated two recommendations for reputable firms to conduct an economic impact analysis in support of new DOE gas turbine initiatives; AGTSR released letters announcing the short-list winners/non-winners from the 98RFP solicitation AGTSR updated fact sheet for 1999 and announced four upcoming workshops via the SCIES web page AGTSR distributed formation to EPRI on research successes, active university projects, and workshop offerings in 1999 AGTSR continued to conduct telephone debriefings to non-winning PI's born the 98RFP solicitation AGTSR distributed completed quarterly progress report assessments to the IRB experts in the various technology areas AGTSR provided Formation to GE-Evandale on the active combustion control research at Georgia Tech AGTSR provided information to AlliedSignal and Wright-Pat Air Force Base on Connecticut's latest short-listed proposal pertaining to NDE of thermal barrier coatings AGTSR submitted final technical reports from Georgia Tech - one on coatings and the other on active combustion control - to the HU3 for review and evaluation AGTSR coordinated the format, presentation and review of 28 university research posters for the ATS Annual Review Meeting in November, 1998 AGTSR published a research summary paper at the ATS Annual Review pertaining to the university consortium's activities AGTSR published and presented a paper on the status of ATS catalytic combustion R&D at the RTA/NATO Gas Turbine Combustion Symposium, October 12-16,1998 in Lisbon, Portugal IRE approved a 12-month add-on request from Penn State University to conduct an added research task in their multistage unsteady aerodynamics project AGTSR reviewed a research extension white paper from Clemson University with the IRB to conduct an added task pertaining to their mist/steam cooling research project AGTSR coordinated new research topics with the IR.Band select universities to facilitate R&D roadmapping needs at the Aero-Heat Transfer III workshop in Austin, TX AGTSR distributed FY97 research progress reports to DOE and the XRB; and AGTSR solicited new R&D topics from the IRB experts for the 1999 RFP.

NONE

1999-01-19T23:59:59.000Z

440

Development of an Integrated Multicontaminant Removal Process Applied to Warm Syngas Cleanup for Coal-Based Advanced Gasification Systems  

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

an Integrated an Integrated Multicontaminant Removal Process Applied to Warm Syngas Cleanup for Coal-Based Advanced Gasification Systems Background The U.S. has more coal than any other country, and it can be converted through gasification into electricity, liquid fuels, chemicals, or hydrogen. However, for coal gasification to become sufficiently competitive to benefit the U.S. economy and help reduce our dependence on foreign fuels, gasification costs must be reduced

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441

REQUEST BY VARIAN MEDICAL SYSTEMS FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN AN IDENTIFIED INVENTION (S-  

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

VARIAN MEDICAL SYSTEMS FOR AN ADVANCE WAIVER OF VARIAN MEDICAL SYSTEMS FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN RIGHTS IN AN IDENTIFIED INVENTION (S- 105,965) MADE IN THE COURSE OF OR UNDER BWXT Y-12, LLC SUBCONTRACT NO. 4300039024 UNDER PRIME CONTRACT NO. DE-AC05- 00OR22800; DOE WAIVER DOCKET W(A)2004-075 [ORO-791] Varian Medical Systems (Varian) has made a timely request for an advance waiver to worldwide rights in an identified invention made in the course of or under BWXT Y-12, LLC Subcontract No. 4300039024 entitled, "Prototype Megavoltage X-ray Sensor Array with High Spatial Resolution" under BWXT Y-12, LLC Prime Contract No. DE-AC05-000R22800. This invention relates to a prototype megavoltage X-ray sensor array with high spatial resolution (67 micron pixels) with an active area of 21x28cm for use in cone beam CT imaging for non-destructive

442

A comparative study on conventional and advanced exergetic analyses of geothermal district heating systems based on actual operational data  

Science Journals Connector (OSTI)

This paper comparatively evaluates exergy destructions of a geothermal district heating system (GDHS) using both conventional and advanced exergetic analysis methods to identify the potential for improvement and the interactions among the components. As a real case study, the Afyon GDHS in Afyonkarahisar, Turkey, is considered based on actual operational data. For the first time, advanced exergetic analysis is applied to the GDHSs, in which the exergy destruction rate within each component is split into unavoidable/avoidable and endogenous/exogenous parts. The results indicate that the interconnections among all the components are not very strong. Thus, one should focus on how to reduce the internal inefficiency (destruction) rates of the components. The highest priority for improvement in the advanced exergetic analysis is in the re-injection pump (PM-IX), while it is the heat exchanger (HEX-III) in the conventional analysis. In addition, there is a substantial influence on the overall system as the total avoidable exergy destruction rate of the heat exchanger (HEX-V) has the highest value. On the overall system basis, the value for the conventional exergetic efficiency is determined to be 29.29% while that for the modified exergetic efficiency is calculated to be 34.46% through improving the overall components.

Arif Hepbasli; Ali Keeba?

2013-01-01T23:59:59.000Z

443

Energy Conservation  

Science Journals Connector (OSTI)

...systems, such as a system conibining a gas turbine with electricity, could significantly...needed traffic flows, upheavals in life styles, damage to industries de-pendent...combination of coal gasification with a gas turbine-steam turbine power plant, is...

G. A. Lincoln

1973-04-13T23:59:59.000Z

444

Unexpected coherence and conservation  

Science Journals Connector (OSTI)

...December 2001 research-article Unexpected coherence and conservation Bernard Cazelles 1...out-of-phase synchrony| Unexpected coherence and conservation. | The effects of migration...Behavior Stochastic Processes Unexpected coherence and conservation Bernard Cazelles1...

2001-01-01T23:59:59.000Z

445

5-1 Chapter 5--Processor Design--Advanced Topics Computer Systems Design and Architecture by V. Heuring and H. Jordan 1997 V. Heuring and H. Jordan  

E-Print Network [OSTI]

by V. Heuring and H. Jordan © 1997 V. Heuring and H. Jordan Chapter 5: Processor Design-- Advanced. Heuring and H. Jordan © 1997 V. Heuring and H. Jordan Microprogramming: Basic Idea Control unit job--Advanced Topics Computer Systems Design and Architecture by V. Heuring and H. Jordan © 1997 V. Heuring and H

446

Advanced Research  

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

Ductility EnhancEmEnt of molybDEnum Ductility EnhancEmEnt of molybDEnum PhasE by nano-sizED oxiDE DisPErsions Description Using computational modeling techniques, this research aims to develop predictive capabilities to facilitate the design and optimization of molybdenum (Mo), chromium (Cr), and other high-temperature structural materials to enable these materials to withstand the harsh environments of advanced power generation systems, such as gasification-based systems. These types of materials are essential to the development of highly efficient, clean energy technologies such as low-emission power systems that use coal or other fossil fuels.

447

Conservation Districts (Montana) | Department of Energy  

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

Conservation Districts (Montana) Conservation Districts (Montana) Conservation Districts (Montana) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Montana Program Type Siting and Permitting Provider Montana Department of Natural Resources and Conservation Local Conservation Districts in the state of Montana may be formed by

448

Land Conservation (Virginia) | Department of Energy  

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

Land Conservation (Virginia) Land Conservation (Virginia) Land Conservation (Virginia) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Virginia Program Type Siting and Permitting Provider Virginia Department of Conservation and Recreation The Virginia Department of Conservation and Recreation has developed the

449

Basic Parameter Estimation of Binary Neutron Star Systems by the Advanced LIGO/Virgo Network  

E-Print Network [OSTI]

Within the next five years, it is expected that the Advanced LIGO/Virgo network will have reached a sensitivity sufficient to enable the routine detection of gravitational waves. Beyond the initial detection, the scientific promise of these instruments relies on the effectiveness of our physical parameter estimation capabilities. The majority of this effort has been towards the detection and characterization of gravitational waves from compact binary coalescence, e.g. the coalescence of binary neutron stars. While several previous studies have investigated the accuracy of parameter estimation with advanced detectors, the majority have relied on approximation techniques such as the Fisher Matrix. Here we report the statistical uncertainties that will be achievable for optimal detection candidates (SNR = 20) using the full parameter estimation machinery developed by the LIGO/Virgo Collaboration via Markov-Chain Monte Carlo methods. We find the recovery of the individual masses to be fractionally within 9% (15%)...

Rodriguez, Carl L; Raymond, Vivien; Farr, Will M; Littenberg, Tyson; Fazi, Diego; Kalogera, Vicky

2013-01-01T23:59:59.000Z

450

Advanced Combustion  

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

Systems Systems Advanced Combustion Background Conventional coal-fired power plants utilize steam turbines to generate electricity, which operate at efficiencies of 35-37 percent. Operation at higher temperatures and pressures can lead to higher efficiencies, resulting in reduced fuel consumption and lower greenhouse gas emissions. Higher efficiency also reduces CO2 production for the same amount of energy produced, thereby facilitating a reduction in greenhouse gas emissions. When combined, oxy-combustion comes with an efficiency hit, so it will actually increase the amount of CO2 to be captured. But without so much N2 in the flue gas, it will be easier and perhaps more efficient to capture, utilize and sequester. NETL's Advanced Combustion Project and members of the NETL-Regional University

451

Understanding the differences in the development and use of advanced traveler information systems for vehicles (ATIS/V) in the U.S., Germany, and Japan  

E-Print Network [OSTI]

Traffic congestion is becoming a serious problem. As a solution, advanced traveler information systems (ATIS) mitigate traffic congestion by providing real-time traffic information to travelers. ATIS includes various ...

Sugawara, Yoshihiko

2007-01-01T23:59:59.000Z

452

Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems  

E-Print Network [OSTI]

reclamation and solar thermal energy," Energy [accepted]. [and M Dennis, "Solar thermal energy systems in Australia,"and M Dennis, "Solar thermal energy systems in Australia,"

Ho, Tony

2012-01-01T23:59:59.000Z

453

E-Print Network 3.0 - advanced launch system Sample Search Results  

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

Microwave Sounder CERES Clouds and the Earth's Radiant Energy System CrIS Crosstrack... Weather Satellite System FY Fiscal Year GAO Government Accountability Office GOES...

454

Flight Testing of an Advanced Airborne Natural Gas Leak Detection System  

SciTech Connect (OSTI)

ITT Industries Space Systems Division (Space Systems) has developed an airborne natural gas leak detection system designed to detect, image, quantify, and precisely locate leaks from natural gas transmission pipelines. This system is called the Airborne Natural Gas Emission Lidar (ANGEL) system. The ANGEL system uses a highly sensitive differential absorption Lidar technology to remotely detect pipeline leaks. The ANGEL System is operated from a fixed wing aircraft and includes automatic scanning, pointing system, and pilot guidance systems. During a pipeline inspection, the ANGEL system aircraft flies at an elevation of 1000 feet above the ground at speeds of between 100 and 150 mph. Under this contract with DOE/NETL, Space Systems was funded to integrate the ANGEL sensor into a test aircraft and conduct a series of flight tests over a variety of test targets including simulated natural gas pipeline leaks. Following early tests in upstate New York in the summer of 2004, the ANGEL system was deployed to Casper, Wyoming to participate in a set of DOE-sponsored field tests at the Rocky Mountain Oilfield Testing Center (RMOTC). At RMOTC the Space Systems team completed integration of the system and flew an operational system for the first time. The ANGEL system flew 2 missions/day for the duration for the 5-day test. Over the course of the week the ANGEL System detected leaks ranging from 100 to 5,000 scfh.

Dawn Lenz; Raymond T. Lines; Darryl Murdock; Jeffrey Owen; Steven Stearns; Michael Stoogenke

2005-10-01T23:59:59.000Z

455

Design and Development of a Robot-Based Automation System for Cryogenic Crystal Sample Mounting at the Advanced Photon Source  

SciTech Connect (OSTI)

X-ray crystallography is the primary method to determine the 3D structures of complex macromolecules at high resolution. In the years to come, the Advanced Photon Source (APS) and similar 3rd-generation synchrotron sources elsewhere will become the most powerful tools for studying atomic structures of biological molecules. One of the major bottlenecks in the x-ray data collection process is the constant need to change and realign the crystal sampl