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Note: This page contains sample records for the topic "national thermal power" 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
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1

Karnataka Power Corporation Limited and National Thermal Power...  

Open Energy Info (EERE)

Limited and National Thermal Power Corporation JV Jump to: navigation, search Name: Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place: India...

2

Karnataka Power Corporation Limited and National Thermal Power Corporation  

Open Energy Info (EERE)

Karnataka Power Corporation Limited and National Thermal Power Corporation Karnataka Power Corporation Limited and National Thermal Power Corporation JV Jump to: navigation, search Name Karnataka Power Corporation Limited and National Thermal Power Corporation JV Place India Sector Wind energy Product India-based wind power project developer. References Karnataka Power Corporation Limited and National Thermal Power Corporation JV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Karnataka Power Corporation Limited and National Thermal Power Corporation JV is a company located in India . References ↑ "Karnataka Power Corporation Limited and National Thermal Power Corporation JV" Retrieved from "http://en.openei.org/w/index.php?title=Karnataka_Power_Corporation_Limited_and_National_Thermal_Power_Corporation_JV&oldid=3479

3

National Thermal Power Corporation NTPC | Open Energy Information  

Open Energy Info (EERE)

NTPC NTPC Jump to: navigation, search Name National Thermal Power Corporation (NTPC) Place New Delhi, Delhi (NCT), India Zip 110003 Sector Biomass, Hydro, Solar, Wind energy Product Delhi-based, state owned largest thermal power generating company of India. The firm has also ventured into consultancy, power trading, ash utilisation and coal mining. The firm is also developing various wind, solar, small hydro and biomass project. References National Thermal Power Corporation (NTPC)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. National Thermal Power Corporation (NTPC) is a company located in New Delhi, Delhi (NCT), India . References ↑ "National Thermal Power Corporation (NTPC)"

4

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Visit to NSTTF On September 10, 2012, in Concentrating Solar Power, EC, National Solar Thermal Test Facility, Renewable Energy Dr. David Danielson visited Sandia National...

5

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Solar Power Technical Management Position On July 12, 2012, in Concentrating Solar Power, Energy, Facilities, Job Listing, National Solar Thermal Test Facility, News,...

6

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Better Sandia Capabilities to Support Power Industry On January 8, 2013, in Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar Thermal Test Facility,...

7

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

8

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Test Facility Air Force Research Laboratory Testing On August 17, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Renewable...

9

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Sandia Wins Three R&D100 Awards On July 24, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events, Photovoltaic,...

10

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar Thermal Test Facility,...

11

Sandia National Laboratories: solar thermal storage  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

12

Sandia National Laboratories: solar thermal energy storage  

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

thermal energy storage Sandia Solar Energy Test System Cited in National Engineering Competition On May 16, 2013, in Concentrating Solar Power, Energy, Energy Storage, Facilities,...

13

Sandia National Laboratories: Concentrating Solar Power  

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

Solar Power Technical Management Position On July 12, 2012, in Concentrating Solar Power, Energy, Facilities, Job Listing, National Solar Thermal Test Facility, News,...

14

Sandia National Laboratories: multiscale concentrated solar power  

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

concentrated solar power Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal...

15

Sandia National Laboratories: Concentrating Solar Power Systems  

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

Power Systems Air Force Research Laboratory Testing On November 2, 2012, in Concentrating Solar Power, Facilities, National Solar Thermal Test Facility, News, News & Events,...

16

Sandia National Laboratories: National Solar Thermal Test Facility  

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

ECISEnergyRenewable EnergySolar EnergyConcentrating Solar Power ECISEnergyRenewable EnergySolar EnergyConcentrating Solar Power (CSP)National Solar Thermal Test Facility National Solar Thermal Test Facility NSTTF Interactive Tour National Solar Thermal Test Facility (NSTTF) Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility of this type in the United States. The NSTTF's primary goal is to provide experimental engineering data for the design, construction, and operation of unique components and systems in proposed solar thermal electrical plants planned for large-scale power generation. In addition, the site was built and instrumented to provide test facilities for a variety of solar and nonsolar applications. The facility can provide

17

Sandia National Laboratories: Concentrating Solar Power  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

18

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

19

Sandia National Laboratories: Concentrating Solar Power  

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

Safety and Health Go Green Initiative On December 19, 2012, in Concentrating Solar Power, Energy, Events, Facilities, National Solar Thermal Test Facility, News, News...

20

Sandia National Laboratories: Concentrating Solar Power  

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

NASA's Solar Tower Test of the 1-Meter Aeroshell On August 23, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Partnership,...

Note: This page contains sample records for the topic "national thermal power" 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

National Laboratory Concentrating Solar Power Research and Development...  

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

& Publications National Laboratory Concentrating Solar Power Research and Development Particle Receiver Integrated with Fludized Bed Scattering Solar Thermal Concentrators...

22

Sandia National Laboratories: solar power  

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

Interactive Tour Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility...

23

SunShot Initiative: National Laboratory Concentrating Solar Power Research  

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

National Laboratory Concentrating National Laboratory Concentrating Solar Power Research to someone by E-mail Share SunShot Initiative: National Laboratory Concentrating Solar Power Research on Facebook Tweet about SunShot Initiative: National Laboratory Concentrating Solar Power Research on Twitter Bookmark SunShot Initiative: National Laboratory Concentrating Solar Power Research on Google Bookmark SunShot Initiative: National Laboratory Concentrating Solar Power Research on Delicious Rank SunShot Initiative: National Laboratory Concentrating Solar Power Research on Digg Find More places to share SunShot Initiative: National Laboratory Concentrating Solar Power Research on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage

24

Thermal Solar Power Plants Experience  

Science Journals Connector (OSTI)

In parallel with rising interest in solar power generation, several solar thermal facilities of different configuration and size were ... were designed as modest-size experimental or prototype solar power plants ...

W. Grasse; H. P. Hertlein; C.-J. Winter; G. W. Braun

1991-01-01T23:59:59.000Z

25

Sandia National Laboratories: solar power  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

26

Power Electronic Thermal System Performance and Integration ...  

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

More Documents & Publications Motor Thermal Control Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines Integrated Vehicle Thermal Management...

27

Power Electronic Thermal System Performance and Integration ...  

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

Power Electronic Thermal System Performance and Integration Power Electronic Thermal System Performance and Integration 2009 DOE Hydrogen Program and Vehicle Technologies Program...

28

Thermal effects testing at the National Solar Thermal Test Facility  

SciTech Connect (OSTI)

The National Solar Thermal Test Facility is operated by Sandia National Laboratories and located on Kirkland Air Force Base in Albuquerque, New Mexico. The permanent features of the facility include a heliostat field and associated receiver tower, two solar furnaces, two point-focus parabolic concentrators, and Engine Test Facility. The heliostat field contains 220 computer-controlled mirrors, which reflect concentrated solar energy to test stations on a 61-m tower. The field produces a peak flux density of 250 W/cm{sup 2} that is uniform over a 15-cm diameter with a total beam power of over 5 MW{sub t}. The solar beam has been used to simulate aerodynamic heating for several customers. Thermal nuclear blasts have also been simulated using a high-speed shutter in combination with heliostat control. The shutter can accommodate samples up to 1 m {times} 1 m and it has been used by several US and Canadian agencies. A glass-windowed wind tunnel is also available in the Solar Tower. It provides simultaneous exposure to the thermal flux and air flow. Each solar furnace at the facility includes a heliostat, an attenuator, and a parabolic concentrator. One solar furnace produces flux levels of 270 W/cm{sup 2} over and delivers a 6-mm diameter and total power of 16 kW{sub t}. A second furnace produces flux levels up to 1000 W/cm{sup 2} over a 4 cm diameter and total power of 60 kW{sub t}. Both furnaces include shutters and attenuators that can provide square or shaped pulses. The two 11 m diameter tracking parabolic point-focusing concentrators at the facility can each produce peak flux levels of 1500 W/cm{sup 2} over a 2.5 cm diameter and total power of 75 kW{sub t}. High-speed shutters have been used to produce square pulses.

Ralph, M.E.; Cameron, C.P. [Sandia National Labs., Albuquerque, NM (United States); Ghanbari, C.M. [Technadyne Engineering Consultants, Inc., Albuquerque, NM (United States)

1992-12-31T23:59:59.000Z

29

Thermal effects testing at the National Solar Thermal Test Facility  

SciTech Connect (OSTI)

The National Solar Thermal Test Facility is operated by Sandia National Laboratories and located on Kirkland Air Force Base in Albuquerque, New Mexico. The permanent features of the facility include a heliostat field and associated receiver tower, two solar furnaces, two point-focus parabolic concentrators, and Engine Test Facility. The heliostat field contains 220 computer-controlled mirrors, which reflect concentrated solar energy to test stations on a 61-m tower. The field produces a peak flux density of 250 W/cm[sup 2] that is uniform over a 15-cm diameter with a total beam power of over 5 MW[sub t]. The solar beam has been used to simulate aerodynamic heating for several customers. Thermal nuclear blasts have also been simulated using a high-speed shutter in combination with heliostat control. The shutter can accommodate samples up to 1 m [times] 1 m and it has been used by several US and Canadian agencies. A glass-windowed wind tunnel is also available in the Solar Tower. It provides simultaneous exposure to the thermal flux and air flow. Each solar furnace at the facility includes a heliostat, an attenuator, and a parabolic concentrator. One solar furnace produces flux levels of 270 W/cm[sup 2] over and delivers a 6-mm diameter and total power of 16 kW[sub t]. A second furnace produces flux levels up to 1000 W/cm[sup 2] over a 4 cm diameter and total power of 60 kW[sub t]. Both furnaces include shutters and attenuators that can provide square or shaped pulses. The two 11 m diameter tracking parabolic point-focusing concentrators at the facility can each produce peak flux levels of 1500 W/cm[sup 2] over a 2.5 cm diameter and total power of 75 kW[sub t]. High-speed shutters have been used to produce square pulses.

Ralph, M.E.; Cameron, C.P. (Sandia National Labs., Albuquerque, NM (United States)); Ghanbari, C.M. (Technadyne Engineering Consultants, Inc., Albuquerque, NM (United States))

1992-01-01T23:59:59.000Z

30

Concentrating solar thermal power  

Science Journals Connector (OSTI)

...formidable challenges for academic...science, energy economy and...electricity grid has the capacity...electricity from renewable sources will...regional integration, -energy feed-in via renewable energy...mechanisms across national and continental...supply of energy, the investment...based on renewable energies...

2013-01-01T23:59:59.000Z

31

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Test Facility (NSTTF) Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility...

32

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

ENERGY STORAGE FOR CONCENTRATING SOLAR POWER PLANTS,Thermal Energy Storage in Concentrated Solar Thermal PowerThermal Energy Storage in Concentrated Solar Thermal Power

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

33

Sandia National Laboratories: National Solar Thermal Testing...  

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

Beam Profiling On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar On Thursday, June 7, we began beam profiling the NSTTF field heliostat beam....

34

Sandia National Laboratories: National Solar Thermal Test Facility  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

35

Power Electronics and Thermal Management Breakout Sessions  

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

* More devices, larger wafers, reliabilityqualification, availability, packaging Power Electronics and Thermal Management July 24, 2012 Breakout Session 2 - Discussion of...

36

An Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario (Report Summary) (Presentation), NREL (National Renewable Energy Laboratory)  

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

An Analysis of Concentrating Solar Power An Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario (Report Summary) Paul Denholm, Yih-Huei Wan, Marissa Hummon, Mark Mehos March 2013 NREL/PR-6A20-58470 2 Motivation * Implement concentrating solar power (CSP) with thermal energy storage (TES) in a commercial production cost model o Develop approaches that can be used by utilities and system planners to incorporate CSP in standard planning tools * Evaluate the optimal dispatch of CSP with TES o How would a plant actually be used to minimize system production cost? * Quantify the value of adding storage to CSP in a high renewable energy (RE) scenario in California

37

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT Thomas F.CENTRAL RECEIVER SOLAR THERMAL POWER SYSTEM, PHASE progressCorporation, RECEIVER SOLAR THERMAL POWER SYSTEM, PHASE I,

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

38

Project Profile: National Solar Thermal Test Facility  

Broader source: Energy.gov [DOE]

The first solar receivers ever tested in the world were tested at the National Solar Thermal Test Facility (NSTTF). The receivers were each rated up to 5 megawatts thermal (MWt). Receivers with various working fluids have been tested here over the years, including air, water-steam, molten salt, liquid sodium, and solid particles. The NSTTF has also been used for a large variety of other tests, including materials tests, simulation of thermal nuclear pulses and aerodynamic heating, and ablator testing for NASA.

39

Power Electronics and Thermal Management Breakout Session  

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

POWER ELECTRONICS AND POWER ELECTRONICS AND THERMAL MANAGEMENT BREAKOUT SESSION July 24, 2012 EV Everywhere Grand Challenge Burak Ozpineci Oak Ridge National Laboratory Facilitator Vehicle Technologies Program - Advanced Power Electronics and Electric Motors eere.energy.gov Key DOE Technical Targets Power Electronics ($/kW) (kW/kg) (kW/l) 7.9 10.8 8.7 7 11.2 10 5 12 12 3.3 14.1 13.4 Electric Motors ($/kW) (kW/kg) (kW/l) 11.1 1.2 3.7 10 1.24 4 7 1.3 5 4.7 1.6 5.7 Traction Drive System Impacts  Reduce Cost Reduce Weight Reduce Volume Reduce Energy Storage Requirements Year Cost ($/kW) Specific Power (kW/kg) Power Density (kW/l) Efficiency 2010* 19 1.08 2.60 >90% 2012 17 1.12 2.86 >91% 2015 12 1.17 3.53 >93% 2020 8 1.44 4.00 >94%

40

Thermal Strategies for High Efficiency Thermoelectric Power Generation...  

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

Thermal Strategies for High Efficiency Thermoelectric Power Generation Thermal Strategies for High Efficiency Thermoelectric Power Generation Developing integrated TE system...

Note: This page contains sample records for the topic "national thermal power" 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

Thermal Stress and Reliability for Advanced Power Electronics...  

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

Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines Power Electronic Thermal System Performance and Integration Thermal Performance and...

42

Chapter 10 - Solar Thermal Power Systems  

Science Journals Connector (OSTI)

Abstract Chapter 10 deals with solar thermal power systems. Initially, the general design considerations are given followed by the presentation of the three basic technologies. These include the parabolic trough collector system, which includes a description of the PTC power plant and outlook of the technology; the power tower systems and the dish systems. This is followed by the thermal analysis of the basic cycles of solar thermal power plants. Subsequently, solar updraft tower systems are examined, which include the initial steps and first demonstration, and the thermal analysis. Finally, solar ponds are examined, which is a form of large solar collector and storage system that can be used for solar power generation and include practical design considerations, salty water transmission estimation, methods of heat extraction, description of two large experimental solar ponds, and applications of solar ponds.

Soteris A. Kalogirou

2014-01-01T23:59:59.000Z

43

Green Power Network: Past National Green Power Marketing Conference  

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

Fifth National Green Power Marketing Conference: Fifth National Green Power Marketing Conference: Powering the New Millennium Held August 7-8, 2000 in Denver, Colorado Fifth National Green Power Marketing Conference Summary (PDF 95.1 MB) Download Adobe Reader As the preeminent conference addressing green power marketing in the United States, the fifth annual conference provided an update of domestic green power marketing activities and address such topics as evolving perceptions of green power, why businesses and government agencies are buying green power, how to build demand for green power, what is working well in utility green pricing programs, and international green power markets. The conference was co-sponsored by the U.S. Department of Energy, U.S. Environmental Protection Agency, Electric Power Research Institute, and Edison Electric Institute

44

Sandia National Laboratories: Concentrating Solar Power  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

45

Thermal Modelling of Powerful Traction Battery Charger  

Science Journals Connector (OSTI)

In this paper, the author presents survey of the modern approaches in the thermal analysis of power electronic systems. The improvement and the new methods are applied to the real engineering problem. The ther...

R. Vlach

2012-01-01T23:59:59.000Z

46

Sandia National Laboratories: solar power  

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

Features of Power Towers for Utilities Because of their practical energy storage, solar power towers have two features that are particularly desirable for utilities: flexible...

47

Pv-Thermal Solar Power Assembly  

DOE Patents [OSTI]

A flexible solar power assembly includes a flexible photovoltaic device attached to a flexible thermal solar collector. The solar power assembly can be rolled up for transport and then unrolled for installation on a surface, such as the roof or side wall of a building or other structure, by use of adhesive and/or other types of fasteners.

Ansley, Jeffrey H. (El Cerrito, CA); Botkin, Jonathan D. (El Cerrito, CA); Dinwoodie, Thomas L. (Piedmont, CA)

2001-10-02T23:59:59.000Z

48

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

COST REDUCTION STUDY FOR SOLAR THERMAL POWER PLANTS, Ottawa,Storage in Concentrated Solar Thermal Power Plants A ThesisStorage in Concentrated Solar Thermal Power Plants by Corey

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

49

Green Power Network: Past National Green Power Marketing Conference  

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

Third National Green Power Conference: Selling Green Power in Competitive Markets Third National Green Power Conference: Selling Green Power in Competitive Markets Prepared by Blair Swezey Ashley Houston National Renewable Energy Laboratory Terry Peterson Electric Power Research Institute December 1998 Proceedings (PDF 84 KB) Download Adobe Reader Overview Green power is a market-driven product developed to meet expressed customer preference for electricity derived from renewable sources such as solar, wind, biomass, and geothermal. Over the last several years, more than 30 electric utility companies have designed green power service options for their customers as differentiated from the standard utility service. And now, as state electricity markets start to open to competition, a new industry is emerging to sell competitively priced green power products and services to discriminating consumers.

50

Sandia National Laboratories: Water Power  

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

Sandia is also supporting work with Argonne National Laboratory in conventional hydropower optimization. Highlights: Sandia will receive more than 9 million over three years...

51

Thermal power plant efficiency enhancement with Ocean Thermal Energy Conversion  

Science Journals Connector (OSTI)

Abstract In addition to greenhouse gas emissions, coastal thermal power plants would gain further opposition due to their heat rejection distressing the local ecosystem. Therefore, these plants need to enhance their thermal efficiency while reducing their environmental offense. In this study, a hybrid plant based on the principle of Ocean Thermal Energy Conversion was coupled to a 740MW coal-fired power plant project located at latitude 28S where the surface to deepwater temperature difference would not suffice for regular OTEC plants. This paper presents the thermodynamical model to assess the overall efficiency gained by adopting an ammonia Rankine cycle plus a desalinating unit, heated by the power plant condenser discharge and refrigerated by cold deep seawater. The simulation allowed us to optimize a system that would finally enhance the plant power output by 2537MW, depending on the season, without added emissions while reducing dramatically the water temperature at discharge and also desalinating up to 5.8 million tons per year. The supplemental equipment was sized and the specific emissions reduction was estimated. We believe that this approach would improve the acceptability of thermal and nuclear power plant projects regardless of the plant location.

Rodrigo Soto; Julio Vergara

2014-01-01T23:59:59.000Z

52

Combined Thermal and Power Energy Management Optimization  

E-Print Network [OSTI]

, 'various types of prime movers (e.g. boilers, waste heat recovery, steam and gas turbines, etc.), and varying requirements for process heat and electrical power, particularly if bulk power is being dispatched to a utility grid. The ability...) maintaining the operating security of the energy supply system and equipment, and 3) optimization of energy use to meet given loads and constraints at the lowest costs. The thermal dispatch of power system boilers and turbines is the key function which...

Ahner, D. J.; Priestley, R. R.

53

Project Profile: High-Temperature Thermal Array for Next-Generation Solar Thermal Power Production  

Broader source: Energy.gov [DOE]

The Los Alamos National Laboratory (ORNL), under the National Laboratory R&D competitive funding opportunity, is developing a megawatt-scale heat pipebased technology designed to bridge the heliostat reflector field and the power cycle by replacing both the solar receiver and the heat transfer fluid (HTF) system used in concentrating solar power (CSP) systems. The technology, called the high-temperature thermal array, aims to achieve the SunShot Initiative's goals by addressing technical challenges, reducing capital and operating expenses, and increasing net photon-to-electricity conversion efficiency.

54

Green Power Network: Past National Green Power Marketing Conference  

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

Fourth National Green Power Marketing Conference Fourth National Green Power Marketing Conference Key Ingredients for Successful Markets Held May 10-11, 1999 in Philadelphia, Pennsylvania The Fourth National Green Power Marketing Conference was organized to examine the current state of green-power marketing and to explore opportunities to improve on the success of green-power sales in both regulated and deregulated markets. The conference was co-sponsored by the U.S. Department of Energy, Electric Power Research Institute, Renewable Energy Alliance, and Edison Electric Institute. View all of the Conference Presentations in Microsoft PowerPoint 95 (PPT) or Adobe Acrobat PDF format. Format is noted with file sizes. REPORT SUMMARY Today, in regulated monopoly markets, more than 50 utilities offer "green pricing" to their customers, but competitive green power marketing is still in early evolution. After a year of competitive market activity, it has become clear that the rules and mechanisms established for electric industry restructuring are critical to the success of green power marketing. The Fourth National Green Power Conference examined the current state of green power marketing, identified key market and policy needs under electric industry restructuring, and explored opportunities to improve on the success of green power sales in both regulated and deregulated markets.

55

Advanced Thermal Interface Materials (TIMs) for Power Electronics (Presentation)  

SciTech Connect (OSTI)

This presentation describes our progress in the area of thermal interface materials for power electronics applications.

Narumanchi, S.

2009-05-01T23:59:59.000Z

56

Sandia National Laboratories: Power Electronics  

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

Current switches have been inefficient and ... ECIS-Princeton Power Systems, Inc.: Demand Response Inverter On March 19, 2013, in DETL, Distribution Grid Integration,...

57

Sandia National Laboratories: Power Electronics  

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

aims to leapfrog the current industry trajectory by developing a new generation of power electronics based on Ultra-WBG (UWBG) semiconductors (those with bandgaps greater than...

58

Sandia National Laboratories: Water Power  

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

Engineering, Water Power Sandia researchers are investigating the seasonal effects of a wave-energy converter (WEC) array on nearshore wave propagation using SNL-SWAN. WECs were...

59

Sandia National Laboratories: Water Power  

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

Water Power Sandia-NREL Wave Energy Converter (WEC)-Sim Development Meeting On August 28, 2013, in Computational Modeling & Simulation, Energy, Partnership, Renewable Energy, Water...

60

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

for concentrating solar-thermal energy use a large number ofBoth solar power plants absorb thermal energy in high-of a solar power plant that converts thermal energy into

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: Concentrating Solar Power  

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

Molten Salt Test Loop Melted Salt On October 10, 2012, in Concentrating Solar Power, Energy, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL) team at Sandia National...

62

Sandia National Laboratories: solar power  

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

The dishes track the sun in two axes to provide very high concentrations (1500 Wcm of solar power over ... Central Receiver Test Facility On April 4, 2011, in Operated by...

63

Sandia National Laboratories: solar power  

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

Recent Solar Highlights On October 31, 2012, in View all Solar Energy News Molten Salt Test Loop Commissioning On October 10, 2012, in Concentrating Solar Power, EC, Energy, News,...

64

Green Power Network: Past National Green Power Marketing Conference  

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

Sixth National Green Power Marketing Conference Sixth National Green Power Marketing Conference Opportunity in the Midst of Uncertainty Held July 30 - August 1, 2001 in Portland, OR Please visit EPRI to download your copy of Sixth National Green Power Marketing Conference Summary (PDF 8.8 MB) Conference speakers reviewed the past year's green power highlights, analyzed utility green pricing programs, presented insights into how to target green power demand, examined green certificate trading and tracking mechanisms, and described the best ways to market and sell green power. In addition, First Annual Green Power Leadership Awards were presented to recognize those who are significantly advancing the development of renewable electricity sources in the marketplace. We thank the following conference sponsors: the Center for Resource Solutions, Enron Power Marketing, Inc., E Source, Green Mountain Energy Company, and PacifiCorp Power Marketing, Inc. Event sponsors included PG&E National Energy Group, Portland General Electric, Batdorf & Bronson Coffee Roasters, Fetzer Vineyards, and New Belgium Brewing Company

65

National CHP Roadmap: Doubling Combined Heat and Power Capacity...  

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

National CHP Roadmap: Doubling Combined Heat and Power Capacity in the United States by 2010, March 2001 National CHP Roadmap: Doubling Combined Heat and Power Capacity in the...

66

Yongsheng National Energy Wind Power Co | Open Energy Information  

Open Energy Info (EERE)

Yongsheng National Energy Wind Power Co Jump to: navigation, search Name: Yongsheng National Energy Wind Power Co Place: Inner Mongolia Autonomous Region, China Sector: Wind energy...

67

Thermal-Mechanical Technologies | Argonne National Laboratory  

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

Thermal-Mechanical Technologies Thermal-Mechanical Technologies Heat management plays a critical role in almost all energy-related applications. Research topics in this area...

68

Power Electronics and Thermal Management Breakout Sessions  

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

POWER ELECTRONICS AND THERMAL POWER ELECTRONICS AND THERMAL MANAGEMENT EV Everywhere Workshop July 24, 2012 Breakout Session #1 - Discussion of Performance Targets and Barriers Comments on the Achievability of the Targets * Performance: Is achievable with these assumptions * Production Cost: $8/KW is achievable for PHEV40 and BEV300, $14/KW is okay for BEV100 * Production Efficiency: 95% system efficiency might be achievable * It is easier to achieve performance than cost targets * Integration of the different functionalities can help with achieving the targets * What is efficiency worth? What price do we place on it? Barriers Interfering with Reaching the Targets * Capacitors and magnetics (materials, performance, temperature, size, frequency, packaging) * Material cost, capacitors and magnetics are the priority

69

Powerful Partnership | Y-12 National Security Complex  

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

Powerful Partnership Powerful Partnership Powerful Partnership Posted: February 7, 2013 - 6:58pm | Y-12 Report | Volume 9, Issue 2 | 2013 Y-12 processes the feedstock to power the nation's submarines and aircraft carriers. These vessels can travel the world for years without refueling. When the U.S. Navy's Capt. Hyman Rickover and a small group of naval officers began to study nuclear power in 1946, Oak Ridge, Tenn., was the go-to place. This large, bustling but undisclosed city, born just four years earlier, was credited with developing the highly enriched uranium for the world's first atomic bomb. It held the secret knowledge that set Rickover on course to cultivate the thought of using nuclear reactors to power submarines. His curiosity more than 65 years ago initiated the Navy's

70

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants.  

E-Print Network [OSTI]

??Experimental studies are presented that aim to utilize phase change materials (PCM's) to enhance thermal energy storage systems for concentrated solar thermal power (CSP) systems. (more)

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

71

Low thermal resistance power module assembly  

DOE Patents [OSTI]

A power module assembly with low thermal resistance and enhanced heat dissipation to a cooling medium. The assembly includes a heat sink or spreader plate with passageways or openings for coolant that extend through the plate from a lower surface to an upper surface. A circuit substrate is provided and positioned on the spreader plate to cover the coolant passageways. The circuit substrate includes a bonding layer configured to extend about the periphery of each of the coolant passageways and is made up of a substantially nonporous material. The bonding layer may be solder material which bonds to the upper surface of the plate to provide a continuous seal around the upper edge of each opening in the plate. The assembly includes power modules mounted on the circuit substrate on a surface opposite the bonding layer. The power modules are positioned over or proximal to the coolant passageways.

Hassani, Vahab (Denver, CO); Vlahinos, Andreas (Castle Rock, CO); Bharathan, Desikan (Arvada, CO)

2007-03-13T23:59:59.000Z

72

National Laboratory Concentrating Solar Power Research and Development  

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

and performance improvements across all major concentrating solar power (CSP) subsystems-solar fields, power plants, receivers, and thermal storage-are necessary to achieve the...

73

Solar thermal electric power information user study  

SciTech Connect (OSTI)

The results of a series of telephone interviews with groups of users of information on solar thermal electric power are described. These results, part of a larger study on many different solar technologies, identify types of information each group needed and the best ways to get information to each group. The report is 1 of 10 discussing study results. The overall study provides baseline data about information needs in the solar community. An earlier study identified the information user groups in the solar community and the priority (to accelerate solar energy commercialization) of getting information to each group. In the current study only high-priority groups were examined. Results from five solar thermal electric power groups of respondents are analyzed: DOE-Funded Researchers, Non-DOE-Funded Researchers, Representatives of Utilities, Electric Power Engineers, and Educators. The data will be used as input to the determination of information products and services the Solar Energy Research Institute, the Solar Energy Information Data Bank Network, and the entire information outreach community should be preparing and disseminating.

Belew, W.W.; Wood, B.L.; Marle, T.L.; Reinhardt, C.L.

1981-02-01T23:59:59.000Z

74

Thermal Storage Materials Laboratory (Fact Sheet), NREL (National Renewable Energy Laboratory), Energy Systems Integration Facility (ESIF)  

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

Storage Materials Storage Materials Laboratory may include: * CSP technology developers * Utilities * Certification laboratories * Government agencies * Universities * Other National laboratories Contact Us If you are interested in working with NREL's Thermal Storage Materials Laboratory, please contact: ESIF Manager Carolyn Elam Carolyn.Elam@nrel.gov 303-275-4311 Thermal Storage Materials Laboratory The Thermal Storage Materials Laboratory at NREL's Energy Systems Integration Facility (ESIF) investigates materials that can be used as high-temperature heat transfer fluids or thermal energy storage media in concentrating solar power (CSP) plants. Research objectives include the discovery and evaluation of

75

Sandia National Laboratories: Z Pulsed Power Facility  

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

Z-Machine Z-Machine About Z Z Research Z News Contact Us Facebook Twitter YouTube Flickr RSS Z-Machine Z Pulsed Power Facility Science serving the nation Created to validate nuclear weapons models, the Z machine is also in the race for viable fusion energy. Z-Machine From Earth's Core to Black Holes Contributing to discovery science by studying matter at conditions found nowhere else on Earth Center of Z About Z Sandia's Z machine is the world's most powerful and efficient laboratory radiation source. It uses high magnetic fields associated with high electrical currents to produce high temperatures, high pressures, and powerful X-rays for research in high energy density science. The Z machine creates conditions found nowhere else on Earth. Z is part of Sandia's Pulsed Power program, which began in the 1960s.

76

Compact thermal modeling for package design with practical power maps  

E-Print Network [OSTI]

the VLSI journal 47 (2014) 7185 Power grids Comparison ofsystem identi?ed with one highly correlated power inputs.P(t) [Watts] t [sec] Power P 1 P 2 P p Temperature Thermal

Liu, Zao; Tan, Sheldon; Hua, Yingbo; Wang, Hai; Gupta, Ashish

2014-01-01T23:59:59.000Z

77

Pulsed Power Technology at Sandia National Laboratories  

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

Z-Machine Time-exposure photograph of electrical flashover arcs produced over the surface of the water in the accelerator tank as a byproduct of Z operation. These flashovers are much like strokes of lightning Related links Electromagnetic Technology at Sandia National Laboratories Pulsed Power Technology Published Papers Inertial Fusion Energy C. L. Olson, "Inertial Fusion Energy with Pulsed Power," 2000 Codes: ALEGRA K. C. Cochrane, "Aluminum Equation of State Validation and Verification for the ALEGRA HEDP Simulation Code," 2006 T. Trucano, "ALEGRA-HEDP Validation Strategy," 2005 C. Garasi , "Multi-dimensional high energy density physics modeling and simulation of wire array z-pinch physics," 2003 Equation of State (EOS)

78

Sandia National Laboratories Distributive Power Initiative (DPI)  

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

Benjamin L. Schenkman Benjamin L. Schenkman (505) 284-5883 BLSCHEN@SANDIA.GOV September 2008 ABMAS Battery Management System for USCG National Distress System Applications Annual DOE Peer Review National Distress System (NDS) Problem National Distress System (NDS) Problem  Supplying Fuel to the propane generators is expensive especially when the fuel has to be chartered by helicopter. NDS Background NDS Background  365/7/24 distress communication coverage  Remote Locations (Majority in Alaska)  VHF-FM system powered by Battery, PV and USCG owned propane generators  Fuel for the Generator is delivered by helicopter or car if possible Fuel/Battery Tradeoff Fuel/Battery Tradeoff Good charge acceptance Efficient generator operation Good charge acceptance Efficient generator

79

Low-cost distributed solar-thermal-electric power generation  

E-Print Network [OSTI]

Low-cost distributed solar-thermal-electric power generation A. Der Minassians, K. H. Aschenbach and feasibility study of a low-cost solar thermal electricity generation technology, suitable for distributed: Solar Thermal Collectors, Solar Thermal Electricity, Stirling Engine 1. INTRODUCTION In this paper, we

Sanders, Seth

80

Sandia National Laboratories: National Solar Thermal Test Facility...  

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

Plant Reliability Workshop Sandia Wind Energy in the News Wind & Water Power Newsletter Solar Energy Solar Newsletter Photovoltaics Advanced Research & Development Microsystems...

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: National Solar Thermal Test Facility  

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

Salt Initial Flow Testing is a Tremendous Success On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL ) system at...

82

Low thermal resistance power module assembly  

DOE Patents [OSTI]

A power module assembly (400) with low thermal resistance and enhanced heat dissipation to a cooling medium. The assembly includes a heat sink or spreader plate (410) with passageways or openings (414) for coolant that extend through the plate from a lower surface (411) to an upper surface (412). A circuit substrate (420) is provided and positioned on the spreader plate (410) to cover the coolant passageways. The circuit substrate (420) includes a bonding layer (422) configured to extend about the periphery of each of the coolant passageways and is made up of a substantially nonporous material. The bonding layer (422) may be solder material which bonds to the upper surface (412) of the plate to provide a continuous seal around the upper edge of each opening (414) in the plate. The assembly includes power modules (430) mounted on the circuit substrate (420) on a surface opposite the bonding layer (422). The power modules (430) are positioned over or proximal to the coolant passageways.

Hassani, Vahab (Denver, CO); Vlahinos, Andreas (Castle Rock, CO); Bharathan, Desikan (Arvada, CO)

2010-12-28T23:59:59.000Z

83

Sandia National Laboratories: National Solar Thermal Test Facility  

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

CSP Images & Videos On September 26, 2012, in Image Gallery Videos Concentrating Solar Power Image Gallery A picture says a thousand words, especially on the World Wide Web. Both...

84

Sandia National Laboratories Distributive Power Initiative (DPI)  

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

Peer Review This work was funded by the DOE Energy Storage Program November 2-3, 2006 Washington, DC Presented by: Tom Hund, Nancy Clark, David Johnson, and Wes Baca Sandia National Laboratories Albuquerque, NM (505) 844-8627 tdhund@sandia.gov *Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. 2 Introduction (Previous Work)  Sandia's Power Sources Component Development Dept. provides unbiased energy storage testing support to the DOE Energy Storage Program.  Previous work has included supercap testing on ESMA, Maxwell, and Okamura Labs devices, and battery testing on EEI Bipolar NiMH, Cyclon VRLA,

85

Rapid Modeling of Power Electronics Thermal Management Technologies: Preprint  

SciTech Connect (OSTI)

Describes a method of rapidly evaluating trade-offs associated with alternative packaging configurations and thermal management technologies for power electronics packaging.

Bennion, K.; Kelly, K.

2009-08-01T23:59:59.000Z

86

Thermal Stress and Reliability for Advanced Power Electronics...  

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

Performance and Reliability of Bonded Interfaces Physics of Failure of Electrical Interconnects Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines...

87

Parabolic Trough Solar Thermal Electric Power Plants (Fact Sheet)  

SciTech Connect (OSTI)

This fact sheet provides an overview of the potential for parabolic trough solar thermal electric power plants, especially in the Southwestern U.S.

Not Available

2006-07-01T23:59:59.000Z

88

Power Electronic Thermal System Performance and Integration (Presentation)  

SciTech Connect (OSTI)

This presentation gives an overview of the status and FY09 accomplishments for the NREL Power Electronic Thermal System Performance and Integration Project.

Bennion, K.

2009-05-01T23:59:59.000Z

89

Nuclear power pros and cons: A comparative analysis of radioactive emissions from nuclear power plants and thermal power plants  

Science Journals Connector (OSTI)

On the basis of the public data statistics of recent years on pollution and emissions from nuclear power plants (NPPs) and thermal power plants...

V. A. Gordienko; S. N. Brykin; R. E. Kuzin

2012-02-01T23:59:59.000Z

90

Device for thermal transfer and power generation  

DOE Patents [OSTI]

A system is provided. The system includes a device that includes top and bottom thermally conductive substrates positioned opposite to one another, wherein a top surface of the bottom thermally conductive substrate is substantially atomically flat and a thermal blocking layer disposed between the top and bottom thermally conductive substrates. The device also includes top and bottom electrodes separated from one another between the top and bottom thermally conductive substrates to define a tunneling path, wherein the top electrode is disposed on the thermal blocking layer and the bottom electrode is disposed on the bottom thermally conductive substrate.

Weaver, Stanton Earl (Northville, NY); Arik, Mehmet (Niskayuna, NY)

2011-04-19T23:59:59.000Z

91

Gulf Power - Solar Thermal Water Heating Program | Department of Energy  

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

Gulf Power - Solar Thermal Water Heating Program Gulf Power - Solar Thermal Water Heating Program Gulf Power - Solar Thermal Water Heating Program < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $1,000 Program Info State Florida Program Type Utility Rebate Program Provider Energy Efficiency '''''This program reopened on October 3, 2011 for 2012 applications. Funding is limited and must be reserved through online application before the installation of qualifying solar water heating systems. See Gulf Power's [http://www.gulfpower.com/renewable/solarThermal.asp Solar Water Heating] web site for more information.''''' Gulf Power offers a Solar Thermal Water Heating rebate to customers who install water heaters. This program started after the original pilot

92

Green Power Network: Past National Green Power Marketing Conference  

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

First DOE/EPRI Green Pricing Workshop First DOE/EPRI Green Pricing Workshop April 11-12, 1996 Golden, Colorado Prepared by Blair G. Swezey, National Renewable Energy Laboratory Terry M. Peterson, Electric Power Research Institute I. Overview Green pricing is an evolving utility service that responds to utility customers' preferences for electricity derived from renewable energy sources such as solar, wind, or biomass. Under green pricing, utilities offer customers a voluntary program or service to support electricity generated from renewable energy systems. Customers are asked to pay a rate premium, which is meant to cover the costs that the utility incurs above those paid today for electricity from conventional fuels. Utilities are considering green pricing as a way to build customer loyalty, deploy popular renewable technologies, expand business lines and expertise, and improve understanding of customer response to unbundled pricing and services.

93

Sandia National Laboratories: photovoltaic  

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

Infrastructure Infrastructure Security National Solar Thermal Test Facility NSTTF photovoltaic Photovoltaics PV Renewable Energy solar Solar Energy solar power Solar...

94

Sandia National Laboratories: Water Power Personnel  

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

PowerWater Power Personnel Water Power Personnel Photo of Diana Bull Diana Bull Engineering Sciences R&D 06122Water Power Technologies Diana Bull is a technical staff member in the...

95

Thermal Sciences The thermal sciences area involves the study of energy conversion and transmission, power  

E-Print Network [OSTI]

Thermal Sciences The thermal sciences area involves the study of energy conversion and transmission in virtually all energy conversion devices and systems. One may think of the jet engine as a mechanical device, power generation, the flow of liquids and gases, and the transfer of thermal energy (heat) by means

New Hampshire, University of

96

RADIOISOTOPE POWER SYSTEM CAPABILITIES AT THE IDAHO NATIONAL LABORATORY (INL)  

SciTech Connect (OSTI)

--Idaho National Laboratorys, Space Nuclear Systems and Technology Division established the resources, equipment and facilities required to provide nuclear-fueled, Radioisotope Power Systems (RPS) to Department of Energy (DOE) Customers. RPSs are designed to convert the heat generated by decay of iridium clad, 238PuO2 fuel pellets into electricity that is used to power missions in remote, harsh environments. Utilization of nuclear fuel requires adherence to governing regulations and the INL provides unique capabilities to safely fuel, test, store, transport and integrate RPSs to supply powersupporting mission needs. Nuclear capabilities encompass RPS fueling, testing, handling, storing, transporting RPS nationally, and space vehicle integration. Activities are performed at the INL and in remote locations such as John F. Kennedy Space Center and Cape Canaveral Air Station to support space missions. This paper will focus on the facility and equipment capabilities primarily offered at the INL, Material and Fuel Complex located in a security-protected, federally owned, industrial area on the remote desert site west of Idaho Falls, ID. Nuclear and non-nuclear facilities house equipment needed to perform required activities such as general purpose heat source (GPHS) module pre-assembly and module assembly using nuclear fuel; RPS receipt and baseline electrical testing, fueling, vibration testing to simulate the launch environment, mass properties testing to measure the mass and compute the moment of inertia, electro-magnetic characterizing to determine potential consequences to the operation of vehicle or scientific instrumentation, and thermal vacuum testing to verify RPS power performance in the vacuum and cold temperatures of space.

Kelly Lively; Stephen Johnson; Eric Clarke

2014-07-01T23:59:59.000Z

97

NEPA Process for Geothermal Power Plants in the Deschutes National...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home NEPA Document Collection for: NEPA Process for Geothermal Power Plants in the Deschutes National Forest EIS at Newberry...

98

Electric Power Produced from Nuclear Reactor | National Nuclear...  

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

Electric Power Produced from Nuclear Reactor | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

99

National Laboratory Concentrating Solar Power Research and Development  

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

Concentrating Solar Power Research and Development Motivation The U.S. Department of Energy (DOE) launched the SunShot Initiative as a collaborative national endeavor to make...

100

Bettis and Knolls Atomic Power Laboratories | National Nuclear...  

National Nuclear Security Administration (NNSA)

Bettis and Knolls Atomic Power Laboratories | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing...

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: convert wave power into electricity  

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

wave power into electricity WEC-Sim Code Development Meeting at the National Renewable Energy Laboratory On April 29, 2014, in Computational Modeling & Simulation, Energy, News,...

102

Minnesota Power - Solar-Thermal Water Heating Rebate Program | Department  

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

Minnesota Power - Solar-Thermal Water Heating Rebate Program Minnesota Power - Solar-Thermal Water Heating Rebate Program Minnesota Power - Solar-Thermal Water Heating Rebate Program < Back Eligibility Commercial Industrial Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate Single-family unit: $2,000 Two- to three-family units: $4,000 Multi-family units (four or more): $10,000 Businesses: $25,000 Program Info Start Date 03/2010 Expiration Date 12/31/2013 State Minnesota Program Type Utility Rebate Program Rebate Amount 25% of costs Provider Minnesota Power Minnesota Power offers a 25% rebate for qualifying solar thermal water heating systems. The maximum award for single-family customers is $2,000 per customer; $4,000 for 2-3 family unit buildings; $10,000 for buildings

103

Power Modeling and Thermal Management Techniques for Manycores  

E-Print Network [OSTI]

Power Modeling and Thermal Management Techniques for Manycores Rajib Nath Computer Science number of cores in manycore archi- tectures, along with technology scaling, results in high power in such processors, we need an accurate online estimate of the power consumption. In this paper, we present the first

Simunic, Tajana

104

Concentrating Solar Power Thermal Storage System Basics | Department of  

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

Thermal Storage System Basics Thermal Storage System Basics Concentrating Solar Power Thermal Storage System Basics August 21, 2013 - 10:33am Addthis One challenge facing the widespread use of solar energy is reduced or curtailed energy production when the sun sets or is blocked by clouds. Thermal energy storage provides a workable solution to this challenge. In a concentrating solar power (CSP) system, the sun's rays are reflected onto a receiver, which creates heat that is used to generate electricity. If the receiver contains oil or molten salt as the heat-transfer medium, then the thermal energy can be stored for later use. This enables CSP systems to be cost-competitive options for providing clean, renewable energy. Several thermal energy storage technologies have been tested and

105

Augmentation of thermal power stations with solar energy  

Science Journals Connector (OSTI)

A new concept of integration of a solar concentrator field with a modern thermal power station is proposed. Such a configuration ... and infrastructure as a base load facility and solar energy to reduce the fuel ...

BR Pai

1991-06-01T23:59:59.000Z

106

Sandia National Laboratories: Evaluating Powerful Batteries for...  

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

ClimateECEnergyEvaluating Powerful Batteries for Modular Electric Grid Energy Storage Evaluating Powerful Batteries for Modular Electric Grid Energy Storage Sandian Spoke at the...

107

Sandia National Laboratories: power flow control system  

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

power flow control system ECIS-Princeton Power Systems, Inc.: Demand Response Inverter On March 19, 2013, in DETL, Distribution Grid Integration, Energy, Energy Surety, Facilities,...

108

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power Solar Energy On February 3, 2011, in Solar Programs Photovoltaics Concentrating Solar Power Sunshine to Petrol Solar Publications Recent Solar Highlights...

109

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power (CSP) On April 13, 2011, in CSP R&D at Sandia Testing Facilities Software & Tools Resources Contacts News Concentrating Solar Power ANNOUNCEMENT: Sandia's...

110

Sandia National Laboratories: Concentrating Solar Power (CSP...  

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

to, (1) novel research, development, and demonstration in reflector systems for efficient solar energy collection; (2) large-scale metrology; (3) receivers for solar-to-thermal...

111

Solar thermal power plants for the Spanish electricity market  

Science Journals Connector (OSTI)

Solar thermal power plants are at present the cheapest technology for solar electricity production. At good sites Levelised Electricity Costs (LEC) of 11 Ct/kWh have been achieved in commercially operated power plants. Economy of scale and further technical improvements will reduce the LEC for future projects. On the 27th of March 2004 in Spain the existing feed-in-law has been modified in order to support the erection of solar thermal power plants and thus make use of the huge solar potential of Spain. A payment of approx. 21 Ct/kWh, guaranteed for the first 25 years of operation, makes the erection and operation of solar thermal power plants very profitable for possible investors on the Spanish peninsula. This paper will present the present situation in Spain and the planned power plant projects. For one specific project the set-up is presented in more detail.

M. Eck; F. Rueda; S. Kronshage; C. Schillings; F. Trieb; E. Zarza

2007-01-01T23:59:59.000Z

112

Thermal Systems Process and Components Laboratory (Fact Sheet), NREL (National Renewable Energy Laboratory), Energy Systems Integration Facility (ESIF)  

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

Systems Process and Systems Process and Components Laboratory may include: * CSP technology developers * Utilities * Certification laboratories * Government agencies * Universities * Other National laboratories Contact Us If you are interested in working with NREL's Thermal Systems Process and Components Laboratory, please contact: ESIF Manager Carolyn Elam Carolyn.Elam@nrel.gov 303-275-4311 Thermal Systems Process and Components Laboratory The focus of the Thermal Systems Process and Components Laboratory at NREL's Energy Systems Integration Facility (ESIF) is to research, develop, test, and evaluate new techniques for thermal energy storage systems that are relevant to utility-scale concentrating solar power plants. The laboratory holds

113

Rankline-Brayton engine powered solar thermal aircraft  

DOE Patents [OSTI]

A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2012-03-13T23:59:59.000Z

114

Rankine-Brayton engine powered solar thermal aircraft  

DOE Patents [OSTI]

A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2009-12-29T23:59:59.000Z

115

Sandia National Laboratories Distributive Power Initiative (DPI...  

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

System (NDS) Problem National Distress System (NDS) Problem Supplying Fuel to the propane generators is expensive especially when the fuel has to be chartered by helicopter....

116

Review Article Solar-Thermal Powered Desalination: Its Significant  

E-Print Network [OSTI]

1 Review Article Solar-Thermal Powered Desalination: Its Significant Challenges and Potential John@kau.edu.sa Abstract Solar-desalination systems are desalination systems that are powered by solar energy. With the goal of identifying the key technical challenges and potential opportunities solar-desalination, we

Reif, John H.

117

NETL: Gasification - National Carbon Capture Center at the Power Systems  

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

Gasification Gasification National Carbon Capture Center at the Power Systems Development Facility National Carbon Capture Center Participants The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy (DOE) and dedicated to the advancement of clean coal technology. The PSDF now houses the National Carbon Capture Center (NCCC) to address the nation's need for cost-effective, commercially viable CO2 capture options for flue gas from pulverized coal power plants and syngas from coal gasification power plants. The NCCC focuses national efforts on reducing greenhouse gas emissions through technological innovation, and serve as a neutral test center for emerging carbon capture technologies. PSDF-NCCC Background

118

Thermal and Power Challenges in High Performance Computing Systems  

Science Journals Connector (OSTI)

This paper provides an overview of the thermal and power challenges in emerging high performance computing platforms. The advent of new sophisticated applications in highly diverse areas such as health, education, finance, entertainment, etc. is driving the platform and device requirements for future systems. The key ingredients of future platforms are vertically integrated (3D) die-stacked devices which provide the required performance characteristics with the associated form factor advantages. Two of the major challenges to the design of through silicon via (TSV) based 3D stacked technologies are (i) effective thermal management and (ii) efficient power delivery mechanisms. Some of the key challenges that are articulated in this paper include hot-spot superposition and intensification in a 3D stack, design/optimization of thermal through silicon vias (TTSVs), non-uniform power loading of multi-die stacks, efficient on-chip power delivery, minimization of electrical hotspots etc.

Venkat Natarajan; Anand Deshpande; Sudarshan Solanki; Arun Chandrasekhar

2009-01-01T23:59:59.000Z

119

Modeling The Potential For Thermal Concentrating Solar Power Technologies  

SciTech Connect (OSTI)

In this paper we explore the tradeoffs between thermal storage capacity, cost, and other system parameters in order to examine possible evolutionary pathways for thermal Concen-trating Solar Power (CSP) technologies. A representation of CSP performance that is suit-able for incorporation into economic modeling tools is developed. We find that, as the fraction of electricity supplied by CSP technologies grows, the application of thermal CSP technologies might progress from current hybrid plants, to plants with a modest amount of thermal storage, and potentially even to plants with sufficient thermal storage to provide base load generation capacity. The representation of CSP cost and performance developed here was implemented in the ObjECTS MiniCAM long-term integrated assessment model. Datasets for global solar resource characteristics as applied to CSP technology were also developed. The regional and global potential of thermal CSP technologies is examined.

Zhang, Yabei; Smith, Steven J.; Kyle, G. Page; Stackhouse, Jr., Paul W.

2010-10-25T23:59:59.000Z

120

Wind power for the Creek Nation. Final report  

SciTech Connect (OSTI)

An Enertech 1800 horizontal-axis wind powered electric generator was purchased and interphased with the electric utility system provided to the Creek Nation by the Public Service Company of Oklahoma. Objectives of the work include: to determine the economic feasibility of wind power for the Creek Nation region; to educate the Creek Nation and other Indian tribes about the potential use of wind power; and to accumulate valuable climatic data through an on-site wind survey at a height of 60' over a long period of time. (LEW)

Not Available

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: power-grid analysis  

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

power-grid analysis New Jersey Transit FutureGrid MOU Signing On October 4, 2013, in Analysis, Energy Surety, Infrastructure Security, Microgrid, Modeling, Modeling & Analysis,...

122

Sandia National Laboratories: Concentrating Solar Power  

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

InstituteSandia Photovoltaic Systems Symposium On April 15, 2014, in Concentrating Solar Power, Distribution Grid Integration, Energy, Facilities, Grid Integration, News,...

123

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia and EMCORE: Solar Photovoltaics, Fiber Optics, MODE, and Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable...

124

Sandia National Laboratories: Electric Power Research Institute  

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

Systems Evaluation Laboratory (PSEL), Renewable Energy, Solar, Solar Newsletter, SunShot, Systems Analysis Sandia and Electric Power Research Institute (EPRI) are delighted...

125

Sandia National Laboratories: Concentrating Solar Power  

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

Salt Initial Flow Testing is a Tremendous Success On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL ) system at...

126

Next Generation Power Electronics National Manufacturing Innovation...  

Energy Savers [EERE]

components of modern data center systems. WBG chips will eliminate up to 90% of the energy losses in today's rectifiers that perform these conversions. WBG-based power...

127

Sandia National Laboratories: Concentrating Solar Power  

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

and Transportation R&D Activities View all EC Publications Related Topics Concentrating Solar Power CSP EFRC Energy Energy Efficiency Energy Security Infrastructure...

128

Sandia National Laboratories: Power Towers for Utilities  

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

Engine Test Facility Central Receiver Test Facility Power Towers for Utilities Solar Furnace Dish Test Facility Optics Lab Parabolic Dishes Work For Others (WFO) User...

129

Energy Department Recognizes Nation's Top Green Power Programs |  

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

Recognizes Nation's Top Green Power Programs Recognizes Nation's Top Green Power Programs Energy Department Recognizes Nation's Top Green Power Programs November 16, 2011 - 1:08pm Addthis WASHINGTON, D.C. - The U.S. Department of Energy (DOE) today recognized four leading organizations for expanding the market for electricity produced from renewable energy sources during the 11th annual Green Power Leadership Awards in San Francisco, Calif. These organizations' innovative "green power" programs provide consumers with the opportunity to purchase clean energy from environmentally-preferred sources, such as wind and solar energy. Organizations that offer and promote green power programs support an industry that creates thousands of jobs each year, making clean, renewable energy accessible and affordable to the homeowners and businesses they

130

Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario  

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

Analysis of Concentrating Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario Paul Denholm, Yih-Huei Wan, Marissa Hummon, and Mark Mehos Technical Report NREL/TP-6A20-58186 March 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 An Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario Paul Denholm, Yih-Huei Wan, Marissa Hummon, and Mark Mehos Prepared under Task No. CP08.8301

131

Waverly Light and Power - Residential Solar Thermal Rebates | Department of  

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

Solar Thermal Rebates Solar Thermal Rebates Waverly Light and Power - Residential Solar Thermal Rebates < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $3,500 Program Info Start Date 07/01/2009 State Iowa Program Type Utility Rebate Program Rebate Amount 30/sq. foot of collector area Provider Waverly Light and Power Waverly Light and Power (WL&P) offers rebates for solar hot water heating systems to its residential customers. All purchases must be pre-approved through WL&P's solar water heater application process. In addition, residential customers must obtain a county-issued permit prior to installing a solar water heating system. There is a limit of one rebate per address. Funding is available until the rebate fund is exhausted.

132

Power Electronics Thermal Management R&D (Presentation)  

SciTech Connect (OSTI)

This project will investigate and develop thermal-management strategies for wide bandgap (WBG)-based power electronics systems. Research will be carried out to deal with thermal aspects at the module- and system-level. Module-level research will focus on die- and substrate-integrated cooling strategies and heat-transfer enhancement technologies. System-level research will focus on thermal-management strategies for the entire power electronics system to enable smart packaging solutions. One challenge with WBG device-based power electronics is that although losses in the form of heat may be lower, the footprint of the components is also likely to be reduced to reduce cost, weight, and volume. Combined with higher operational temperatures, this creates higher heat fluxes which much be removed from a smaller footprint, requiring advanced cooling strategies.

Waye, S.

2014-11-01T23:59:59.000Z

133

Anyang Lingrui Thermal Power Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Anyang Lingrui Thermal Power Co Ltd Anyang Lingrui Thermal Power Co Ltd Jump to: navigation, search Name Anyang Lingrui Thermal Power Co., Ltd Place Anyang, Henan Province, China Zip 455000 Sector Biomass Product China-based biomass project developer. Coordinates 37.396309°, 126.930939° 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":37.396309,"lon":126.930939,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

134

FPD's Perspective Photos - Los Alamos National Labratory - NISA...  

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

National Labratory - NISA Enforcement Letter, Los Alamos National Security, LLC - May 15, 2008 High Temperature Thermal Array for Next Generation Solar Thermal Power Production...

135

Sandia National Laboratories Distributive Power Initiative (DPI)  

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

Large Format Carbon Enhanced Large Format Carbon Enhanced VRLA Battery Test Results EESAT 2009 Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL) October 4 - 7, 2009 Seattle, Washington Presented by: Tom Hund Sandia National Laboratories Albuquerque, NM (505) 844-8627 tdhund@sandia.gov *Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. 2 Objective  Test Advanced Lead-Acid Battery Consortium (ALABC) technology for utility partial state of charge (PSOC) cycling applications. Utility applications may include: Wind farm energy smoothing Photovoltaic energy smoothing

136

Sandia National Laboratories Distributive Power Initiative (DPI)  

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

Devices Devices Testing and Evaluation of Energy Storage Devices DOE Energy Storage Systems Research Program Annual Peer Review Funded by the Energy Storage Systems Program of the U.S. Department Of Energy (DOE/ESS) through Sandia National Laboratories (SNL) September 29 - 30, 2008 Washington, DC Presented by: Tom Hund, Nancy Clark and Wes Baca Sandia National Laboratories Albuquerque, NM (505) 844-8627 tdhund@sandia.gov Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. 2 Objective (FY-08 Work) Objective (FY-08 Work)  Identify and test advanced battery technology including Valve Regulated Lead-Acid, (VRLA) and Li-ion (Li-

137

Sandia National Laboratories: Concentrating Solar Power  

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

CSP Resources On September 26, 2012, in CSP Images & Videos On September 26, 2012, in Image Gallery Videos Concentrating Solar Power Image Gallery A picture says a thousand words,...

138

Sandia National Laboratories: DC power optimizers  

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

DC power optimizers Sandia R&D Funded under New DOE SunShot Program On November 27, 2013, in Energy, News, News & Events, Partnership, Photovoltaic, Renewable Energy, Solar,...

139

Sandia National Laboratories: Concentrating Solar Power (CSP...  

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

of three 459-ft-tall power towers and over 170,000 reflective heliostats with a rated capacity of 390 MW. The California Energy Commission (CEC) has received numerous pilot and air...

140

Sandia National Laboratories: Wind & Water Power Newsletter  

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

of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Wind and Water Power Program. Events Register by August 11th to receive discounted rate for...

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: Wind & Water Power Newsletter  

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

on marine current turbine behaviour and on its wake properties, IET Renewable Power Generation November 2010, Volume 4, Issue 6, P.498-509 Chris Chartrand, (505) 845-8750....

142

Sandia National Laboratories: Concentrating Solar Power  

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

Dishes Chuck Andraka | Phone: 505-844-8573 Dr. Julius Yellowhair | Phone: 505-844-3029 Power Tower Component DesignModeling Josh Christian | Phone: 505-284-5190 Dr. Ryan ......

143

Novel power system demonstrated for space travel | National Nuclear  

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

Novel power system demonstrated for space travel | National Nuclear Novel power system demonstrated for space travel | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Novel power system demonstrated for space travel Novel power system demonstrated for space travel Posted By Office of Public Affairs John Bounds, Los Alamos National Laboratory

144

Novel power system demonstrated for space travel | National Nuclear  

National Nuclear Security Administration (NNSA)

Novel power system demonstrated for space travel | National Nuclear Novel power system demonstrated for space travel | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Novel power system demonstrated for space travel Novel power system demonstrated for space travel Posted By Office of Public Affairs John Bounds, Los Alamos National Laboratory

145

Thermal evaluation and performance of high-power Lithium-ion cells  

SciTech Connect (OSTI)

Under the sponsorship of the US Advanced Battery Consortium (USABC) and the Partnership for a New Generation of Vehicles (PNGV), Saft has developed high-power lithium-ion (Li-Ion) batteries for hybrid electric vehicles (HEVs). These high-power Li-Ion batteries are being evaluated for the US Department of Energy's (DOE) Hybrid Vehicle Propulsion Program. As part of this program, the National Renewable Energy Laboratory (NREL) characterized the thermal performance of the Saft (6-Ah) Li-Ion cells. The characterization included (1) obtaining thermal images of cells under a specified cycle, (2) measuring heat generation from the cells at various temperatures and under various charge/discharge profiles, and (3) determining the cells' capabilities for following a simulated power profile (driving cycle) at various initial states of charge and temperatures.

Keyser, M.; Pesaran, A.; Oweis, S.; Chagnon, G.; Ashtiani, C.

2000-01-25T23:59:59.000Z

146

Sandia National Laboratories Distributive Power Initiative (DPI)  

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

Testing and Evaluation of Testing and Evaluation of Energy Storage Devices DOE Energy Storage Systems Research Program Annual Peer Review This work was funded by the DOE Energy Storage Program September 23 - 26, 2007 San Francisco, CA Presented by: Tom Hund, Nancy Clark, David Johnson, and Wes Baca Sandia National Laboratories Albuquerque, NM (505) 844-8627 tdhund@sandia.gov *Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. 2 Introduction (FY-07 Work) Introduction (FY-07 Work) Sandia/MeadWestvaco/NorthStar Supercap and Carbon Enhanced Lead-Acid Battery Work Prepared second generation of MWV carbon for testing in NorthStar and Battery Energy batteries

147

Electric Power Produced from Nuclear Reactor | National Nuclear Security  

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

Electric Power Produced from Nuclear Reactor | National Nuclear Security Electric Power Produced from Nuclear Reactor | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Electric Power Produced from Nuclear Reactor Electric Power Produced from Nuclear Reactor December 20, 1951 Arco, ID Electric Power Produced from Nuclear Reactor

148

Thermal energy conversion to motive power  

SciTech Connect (OSTI)

Performance evaluations of both ideal and actual organic Rankine cycle (ORC) and steam Rankine cycles (SRC) are presented for systems that may be candidates for Solar Total Energy Systems (STES). Many organic fluids and heat engines (turbines or expanders) are being developed; therefore, performance of a few representative ORCs are evaluated. The electrical power outputs range from several kW to <10 MW with maximum cycle temperatures of 482/sup 0/C (900 F). Conclusions from basic Rankine cycle analyses are that the Carnot cycle concept should not be used as a standard of comparison for different cycle fluids, even when they are operating at the same inlet and exhaust temperatures. The ideal Rankine cycle with the maximum conversion efficiency, when based on exact physical properties of fluids, should provide a better standard for actual cycles. Three sets of maximum (ideal) Rankine cycle efficiency (n/sub r/) curves are estimated for steam and several organic fluids for exhaust temperatures of 38/sup 0/C, 100/sup 0/C, and 149/sup 0/C (100 F, 212 F, and 300F). These curves of n/sub r/ versus peak temperature at the expander inlet are referred to as Criterion Curves for basic Rankine cycles, in which corresponding inlet pressures are selected such that n/sub r/ will be a maximum. Basic cycle efficiencies indicate some fluids preferred for solar total energy applications.

Meador, J.T.

1980-01-01T23:59:59.000Z

149

Pulsed Power Technology at Sandia National Laboratories  

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

News and Reviews News and Reviews Pulsed Power in the News Nuclear fusion simulation shows high-gain energy output (March 2012) Rapid-fire pulse brings Sandia Z method closer to goal of high-yield fusion reactor (April 2007) Ice created in nanoseconds by Sandia's Z machine (March 2007) Z-Machine Shockwaves Melt Diamond (November 2006) Phase diagram of water revised by Sandia researchers (October 2006) Z fires objects faster than Earth moves through space (June 6, 2005) Sandia imagists view imploding wire arrays on Z (November 10, 2004) Z's $61.7 million refurbishment to advance capabilities (October 21, 2004) Z produces fusion neutrons (April 7, 2003) Former shock physics manager (Asay) elected to NAE (February 20, 2003) Z-Beamlet image shows Z evenly compresses pellet (August 30, 2001)

150

Sandia National Laboratories: Sandia-AREVA Commission Solar Thermal...  

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

ClimateECResearch & CapabilitiesCapabilitiesSandia-AREVA Commission Solar ThermalMolten Salt Energy-Storage Demonstration Sandia-AREVA Commission Solar ThermalMolten Salt...

151

First results from operation of the Adler thermal power station equipped with two PGU-180 combined-cycle power units  

Science Journals Connector (OSTI)

We present technical characteristics of the equipment used in the PGU-180 power units of the Adler thermal power station (a branch of OGK-2) commissioned in November 2012 after the entire power plant had succe...

Yu. A. Radin; S. N. Lenev; O. N. Nikandrov; D. V. Rudenko

2013-09-01T23:59:59.000Z

152

Mobile-mirror concentrators for solar thermal power plants  

SciTech Connect (OSTI)

Seven central-receiver, solar-thermal power plants with heliostat concentrators have been built around the world in the last two decades. This technology has proven to be much too expensive for commercial power plants and efforts to reduce the cost have reached an impasse. It is the nature of the solar concentrators which makes it so expensive. There are two types of concentrators: those, called heliostats, with mirrors on stationary supports, and those with mirrors on mobile supports. Mobile mirrors are potentially much cheaper than heliostats.

Ratliff, G. [Ratliff (George), Pittsburgh, PA (United States)

1999-11-01T23:59:59.000Z

153

Thermal Analysis of the Z-Pinch Power Plant Concept  

SciTech Connect (OSTI)

In this work, a preliminary thermal model for the Z-Pinch Power Plant is presented. This power plant utilizes fusion energy to generate electric energy in the GW range. The Z-Pinch Technology consists of compressing high-density plasma to produce X-rays to indirectly heat to ignition a deuterium/tritium fusion capsule. This ignition releases a minimum of 3 GJ every 10 seconds. The thermal energy generated is absorbed by the primary cycle fluid, and it is later used to power a Brayton or Rankine cycle. An advanced heat exchanger is used as the interface between the two cycles. This heat exchanger plays an important role in power plant performance. Three fluids (Flibe, Pb-17Li, and Li) were used for the plant performance analysis. The thermodynamic properties of the selected fluids determine the maximum operating temperature of the power cycles. Model results show that high temperatures (over 1000 deg. C) are developed in the primary cycle as needed to efficiently run the secondary cycle. The results of the performance parametric study demonstrated that the Brayton cycle exhibits better performance characteristics than the Rankine cycle for this type of application.

Modesto, M.A.; Lindgren, E.R.; Morrow, C.W. [Sandia National Laboratories (United States)

2005-04-15T23:59:59.000Z

154

Three-dimensional thermal analysis of wirelessly powered light-emitting systems  

Science Journals Connector (OSTI)

...geometrical parameters and thermal conductivities of the...bio-implanted applications. thermal analysis|wireless...wireless power, instead of batteries, could bring additional...battery replacement and battery biocompatibility. Recently...bio-integrated applications. The thermal behaviour of such systems...

2012-01-01T23:59:59.000Z

155

A description of the thermal power system analyser structure and commands  

E-Print Network [OSTI]

This report describes a system comprised of a set of interactive commands and a data base which aids in the modeling of thermal power systems with the aid of a computer. This system, named TPSA (Thermal Power System ...

Margulies, B. I.

1980-01-01T23:59:59.000Z

156

High-Temperature Air-Cooled Power Electronics Thermal Design (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the status of research at NREL on high temperature air-cooled power electronics thermal design.

Waye, S.

2014-06-01T23:59:59.000Z

157

Method and system to provide thermal power for a power plant  

SciTech Connect (OSTI)

A method for providing thermal power to generate electricity in a power plant is described comprising: delivering substantially uncut and untrimmed whole trees into a combustion chamber; burning the substantially whole trees in the combustion chamber to generate heat; and absorbing the heat of combustion of the trees in a device for providing power to an electrical power generator. A system for providing power to an electrical generating power plant is described comprising: means for defining a combustion chamber within which substantially uncut and untrimmed whole trees are received for burning; conveyor means for delivering the substantially whole trees for combustion into the combustion chamber; and heat absorbing means for absorbing the heat of combustion of the substantially whole trees, the heat absorbing means being adapted to be operatively connected to means for converting the absorbed heat into electrical power.

Ostlie, L.D.

1987-11-17T23:59:59.000Z

158

Stirling Engines for Low-Temperature Solar-Thermal-Electric Power Generation  

E-Print Network [OSTI]

Stirling Engines for Low-Temperature Solar-Thermal- Electric Power Generation Artin Der Minassians-Temperature Solar-Thermal-Electric Power Generation by Artin Der Minassians Karshenasi (Amirkabir University-Temperature Solar-Thermal-Electric Power Generation Copyright c 2007 by Artin Der Minassians #12;1 Abstract Stirling

Sanders, Seth

159

Technical and economical evaluation of solar thermal power generation  

Science Journals Connector (OSTI)

This article presents a feasibilty on a solar power system based on the Stirling dish (SD) technology, reviews and compares the available Stirling engines in the perspective of a solar Stirling system. The system is evaluated, as a parameter to alleviate the energy system of the Cretan island while taking care of the CO2 emissions. In the results a sensitivity analysis was implemented, as well as a comparison with conventional power systems. In the long-term, solar thermal power stations based on a SD can become a competitive option on the electricity market, if a concerted programme capable of building the forces of industry, finance, insurance and other decision makers will support the market extension for this promising technology.

Theocharis Tsoutsos; Vasilis Gekas; Katerina Marketaki

2003-01-01T23:59:59.000Z

160

Sandia National Laboratories: Solar  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: PWR  

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

PWR Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events,...

162

Sandia National Laboratories: Partnership  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

163

Sandia National Laboratories: Facilities  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

164

Next Generation Power Electronics National Manufacturing Innovation Institute  

Broader source: Energy.gov [DOE]

The Next Generation Power Electronics National Manufacturing Innovation Institute will focus on wide bandgap (WBG) semiconductors - the same materials used in LED light fixtures and many flat screen TVs. The Institute will use $70 million provided by the U.S. Department of Energy's Advanced Manufacturing Office to support and manage its programs over the next five years. This Institute is one of three new innovation hubs announced by President Obama in his 2013 State of the Union address and part of the National Network for Manufacturing Innovation (NNMI).

165

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

CHANGE THERMAL ENERGY STORAGE FOR CONCENTRATING SOLAR POWERfor Thermal Energy Storage in Concentrated Solar Thermalfor Thermal Energy Storage in Concentrated Solar Thermal

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

166

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

and Background Solar thermal energy collection is anCHANGE THERMAL ENERGY STORAGE FOR CONCENTRATING SOLAR POWERfor Thermal Energy Storage in Concentrated Solar Thermal

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

167

Performance of a Thermally Stable Polyaromatic Hydrocarbon in a Simulated Concentrating Solar Power Loop  

SciTech Connect (OSTI)

Polyaromatic hydrocarbon thermal fluids showing thermally stability to 600 C have been tested for solar thermal-power applications. Although static thermal tests showed promising results for 1-phenylnaphthalene, loop testing at temperatures to 450 C indicated that the fluid isomerized and degraded at a slow rate. In a loop with a temperature high enough to drive the isomerization, the higher melting point byproducts tended to condense onto cooler surfaces. So, as experienced in loop operation, eventually the internal channels of cooler components in trough solar electric generating systems, such as the waste heat rejection exchanger, may become coated or clogged affecting loop performance. Thus, pure 1-phenylnaphthalene, without addition of stabilizers, does not appear to be a fluid that would have a sufficiently long lifetime (years to decades) to be used in a loop at the temperatures greater than 500 C. The performance of a concentrating solar loop using high temperature fluids was modeled based on the National Renewable Laboratory Solar Advisory Model. It was determined that a solar-to-electricity efficiency of up to 30% and a capacity factor of near 60% could be achieved using a high efficiency collector and 12 h thermal energy storage.

McFarlane, Joanna [ORNL] [ORNL; Bell, Jason R [ORNL] [ORNL; Felde, David K [ORNL] [ORNL; Joseph III, Robert Anthony [ORNL] [ORNL; Qualls, A L [ORNL] [ORNL; Weaver, Samuel P [ORNL] [ORNL

2014-01-01T23:59:59.000Z

168

21 - Thermal energy storage systems for concentrating solar power (CSP) technology  

Science Journals Connector (OSTI)

Abstract The option to supply electricity on demand is a key advantage of solar thermal power plants with integrated thermal storage. Diurnal storage systems providing thermal power in the multi-MW range for several hours are required here, the temperature range being between 250C and 700C. This chapter describes the state of the art in commercial storage systems used in solar thermal power generation. An overview of alternative and innovative storage concepts for this application area is given.

W.-D. Steinmann

2015-01-01T23:59:59.000Z

169

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

ADVANCED THERMAL ENERGY STORAGE CONCEPT DEFINITION STUDY FORSchilling. F. E. , Thermal Energy Storage Using PrestressedNo ~cumulate thermal energy storage. Estimate ESTrof2(

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

170

Smart Grid Update: Delivering More Reliable and Efficient Power to the Nations Capital  

Broader source: Energy.gov [DOE]

Smart grid investments are transforming power delivery in the nation's Capital and nearby states. Ryan Egidi saw this first-hand when he visited Pepco Holdings Inc. (PHI) last month to mark the recent completion of three Recovery Act-funded Smart Grid Investment Grant (SGIG) projects.

171

Standard Guide for Specifying Thermal Performance of Geothermal Power Systems  

E-Print Network [OSTI]

1.1 This guide covers power plant performance terms and criteria for use in evaluation and comparison of geothermal energy conversion and power generation systems. The special nature of these geothermal systems makes performance criteria commonly used to evaluate conventional fossil fuel-fired systems of limited value. This guide identifies the limitations of the less useful criteria and defines an equitable basis for measuring the quality of differing thermal cycles and plant equipment for geothermal resources. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

2000-01-01T23:59:59.000Z

172

Hydrogen Crack Growth Resistance of Thermal Power Plant Material Collector  

Science Journals Connector (OSTI)

Abstract The influence of electrolytical hydrogenation on fracture toughness, corrosion crack-growth resistance and fracture micromechanisms of operated 12Cr1MoV steel of thermal power plant superheater collector has been studied. Compact tension specimens were cut from perforated surface of thermal power plant superheater collector dismounted after 178,500hours of operation. Corrosion crack-growth resistance under tension of previously hydrogenated compact specimens with fatigue cracks was studied. Due to the increased concentration of hydrogen in solution an additional buffer was being created that prevents hydrogen leakage from the specimen through the fracture surface during the experiment. The hydrogenation causes the significant decrease of critical stress intensity factor Kc, during the experiment in 0.1N NaOH solution as compared with critical stress intensity factor K of non-hydrogenation 12Cr1MoV steel obtained by the 5% secant line method and in comparison with critical stress intensity factor Kc, determined through the J-integral. The areas of ductile crack growth in hydrogenated and non-hydrogenated specimens were found to have similar material fracture micromechanisms with dimples creation of different shape and size. But on the ductile crack growth area in hydrogenated specimens material intergranular fracture mechanisms were found caused by the hydrogen embrittlement which are similar to areas without ridges with the products corrosion traces.

V. Iasnii; P. Maruschak; O. Yasniy; Y. Lapusta

2014-01-01T23:59:59.000Z

173

THERMAL FATIGUE AND FAILURE OF ELECTRONIC POWER DEVICE SUBSTRATES. S. Pietranico1&2  

E-Print Network [OSTI]

. For large thermal amplitudes, the failure occurs in DBC substrates, which are copper/ceramic in power modules, because of their good thermal conductivity. They are composed (Fig. 1) of a ceramic layer- 1 - THERMAL FATIGUE AND FAILURE OF ELECTRONIC POWER DEVICE SUBSTRATES. S. Pietranico1&2 , S

174

THERMAL FATIGUE AND FAILURE OF ELECTRONIC POWER DEVICE SUBSTRATES. S. Pietranico1&2  

E-Print Network [OSTI]

. For large thermal amplitudes, the failure occurs in DBC substrates, which are copper/ceramic- 1 - THERMAL FATIGUE AND FAILURE OF ELECTRONIC POWER DEVICE SUBSTRATES. S. Pietranico1&2 , S their thermal fatigue and failure. For example, for power modules mounted on the engine of an aircraft

Paris-Sud XI, Université de

175

NETL: Gasification - National Carbon Capture Center at the Power Systems  

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

Gasifier Optimization Main Area Gasifier Optimization Main Area National Carbon Capture Center at the Power Systems Development Facility Southern Company Services, Inc. Project Number: FE0000749 Project Description The objective of this project is to develop technologies under realistic conditions that will reduce the cost of advanced coal-fueled power plants with CO2 capture. This technology development will include the design, procurement, construction, installation, and operation of a flexible facility for the testing of processes for pre-combustion CO2 capture, post-combustion CO2 capture and oxy-combustion. Components and systems that are appropriate for inclusion in the detailed test plan will be identified in collaboration with NETL. In addition to evaluating DOE sponsored projects; projects from industry, universities, and Electric Power Research Institute (EPRI) will be evaluated to assist in accomplishing the project objectives.

176

EA-1857: Wind Turbine Power Generation Complex at Idaho National Laboratory  

Broader source: Energy.gov [DOE]

This EA would evaluate the environmental impacts of the proposed wind turbine power generation complex at Idaho National Laboratory, Idaho.

177

Independent Scientific Advisory Board Northwest Power Planning Council National Marine Fisheries Service  

E-Print Network [OSTI]

Independent Scientific Advisory Board Northwest Power Planning Council National Marine Fisheries and wildlife programs, and the National Marine Fisheries Service Recovery Program for Columbia River Basin. 3) Evaluate National Marine Fisheries Service recovery activities for Columbia River Basin stocks

178

Organic Rankine power conversion subsystem development for the small community solar thermal power system  

SciTech Connect (OSTI)

The development and preliminary test results for an air-cooled, hermetically sealed 20 kW sub E organic Rankine cycle engine/alternator unit for use with point focussing distributed receiver solar thermal power system. A 750 F toluene is the working fluid and the system features a high speed, single-stage axial flow turbine direct-coupled to a permanent magnet alternator. Good performance was achieved with the unit in preliminary tests.

Barber, R.E.; Boda, F.P.

1982-07-01T23:59:59.000Z

179

Energy management in solar thermal power plants with double thermal storage system and subdivided solar field  

Science Journals Connector (OSTI)

In the paper, two systems for solar thermal power plants (STPPs) are devised for improving the overall performance of the plant. Each one attempts to reduce losses coming from two respective sources. The systems are simulated and compared to a reference STPP. They consists on: (a) a double thermal energy storage (DTS) with different functionalities for each storage and (b) the subdivision of the solar collector field (SSF) into specialised sectors, so that each sector is designed to meet a thermal requirement, usually through an intermediate heat exchanger. This subdivision reduces the losses in the solar field by means of a decrease of the temperature of the heat transfer fluid (HTF). Double thermal energy storage is intended for keeping the plant working at nominal level for many hours a day, including post-sunset hours. One of the storages gathers a fluid which is heated up to temperatures above the nominal one. In order to make it work, the solar field must be able to overheat the fluid at peak hours. The second storage is the classical one. The combination of both allows the manager of the plant to keep the nominal of the plant for longer periods than in the case of classical thermal energy storage. To the authors knowledge, it is the first time that both configurations are presented and simulated for the case of parabolic through STPP with HTF technology. The results show that, if compared to the reference STPP, both configurations may raise the annual electricity generation (up to 1.7% for the DTS case and 3.9% for the SSF case).

Antonio Rovira; Mara Jos Montes; Manuel Valdes; Jos Mara Martnez-Val

2011-01-01T23:59:59.000Z

180

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

OF CALIFORNIA RIVERSIDE Phase Change Materials for ThermalOF THE THESIS Phase Change Materials for Thermal Energyto utilize phase change materials (PCMs) to enhance thermal

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

PHASE CHANGE THERMAL ENERGY STORAGE FOR CONCENTRATING SOLARChange Materials for Thermal Energy Storage in ConcentratedChange Materials for Thermal Energy Storage in Concentrated

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

182

Solar thermal power generation: a bibliography with abstracts. Quarterly update, January-March 1980  

SciTech Connect (OSTI)

This annotated bibliography contains the following: energy overviews, solar overviews, energy conservation, economics and law, total energy systems, solar thermal power, thermionic and thermoelectric, ocean thermal energy conversion, wind power, biomass and photochemical energy, satellite power stations, and large-scale photovoltaics. (MHR)

Not Available

1980-06-01T23:59:59.000Z

183

Belgirate, Italy, 28-30 September 2005 A COMPREHENSIVE THERMAL-AWARE POWER MANAGEMENT SYSTEM WITH  

E-Print Network [OSTI]

control mechanism more flexible. Besides battery life, thermal impact is another major reason to utilizeBelgirate, Italy, 28-30 September 2005 A COMPREHENSIVE THERMAL-AWARE POWER MANAGEMENT SYSTEM power techniques due to shortage of battery life. Conventional power management designs focused

Paris-Sud XI, Université de

184

Solar thermal power generation: a bibliography with abstracts. Quarterly update, October-December 1979  

SciTech Connect (OSTI)

This annotated bibliography contains the following subjects: energy overviews, solar overviews, energy conservation, economics and law, solar thermal power, thermionic and thermoelectric, ocean thermal energy conversion, biomass and photochemical energy, and large-scale photovoltaics. (MHR)

Not Available

1980-04-01T23:59:59.000Z

185

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

Power Plant Solar Power Ideal Gas Turbine Topping Braytonwill require higher parasitic power for gas circulation. Theefficiency of a solar power plant with gas-turbine topping

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

186

Impact of wind power on generation economy and emission from coal based thermal power plant  

Science Journals Connector (OSTI)

The major chunk of power generation is based on coal fueled thermal power plant. Due to increasing demand of power there will be future crises of coal reservoirs and its costing. Apart from this, coal based thermal power plant is the main source of environmental emissions like carbon dioxides (CO2), sulfur dioxides (SO2) and oxides of nitrogen (NOx) which not only degrades the air quality but also is responsible for global warming, acid rain etc. This paper proposes a combined working of Doubly Fed Induction Generator (DFIG) with coal based Synchronous Generator (SG) in the MATLAB environment. STATCOM is suggested at common coupling point to maintain voltage stability and also maintain the system in synchronism. Analysis have been made for environmental emissions, coal requirement and system economy for both the cases, when the total load supplied by only SG and with the combination. Emission analysis have been also made with the application of washed coal in SG. With the impact of DFIG energy generation from SG have been reduces which proportionally affects on coal requirement, generation cost and environmental emissions. Application of washed coal improves the performance of SG and also reduces the environmental emissions.

K.B. Porate; K.L. Thakre; G.L. Bodhe

2013-01-01T23:59:59.000Z

187

International Space Station power module thermal control system hydraulic performance  

SciTech Connect (OSTI)

The International Space Station (ISS) uses four photovoltaic power modules (PVMs) to provide electric power for the US On-Orbit Segment. The PVMs consist of photovoltaic arrays (PVAs), orbit replaceable units (ORUs), photovoltaic radiators (PVRs), and a thermal control system (TCS). The PVM TCS function is to maintain selected PVM components within their specified operating ranges. The TCS consists of the pump flow control subassembly (PFCS), piping system, including serpentine tubing for individual component heat exchangers, headers/manifolds, fluid disconnect couplings (FQDCs), and radiator (PVR). This paper describes the major design requirements for the TCS and the results of the system hydraulic performance predictions in regard to these requirements and system component sizing. The system performance assessments were conducted using the PVM TCS fluid network hydraulic model developed for predicting system/component pressure losses and flow distribution. Hardy-Cross method of iteration was used to model the fluid network configuration. Assessments of the system hydraulic performance were conducted based on an evaluation of uncertainties associated with the manufacturing and design tolerances. Based on results of the analysis, it was concluded that all design requirements regarding system performance could be met. The hydraulic performance range, enveloping possible system operating parameter variations was determined.

Goldberg, V. [Boeing North American, Inc., Canoga Park, CA (United States). Rocketdyne Div.

1997-12-31T23:59:59.000Z

188

Thermal Management of Power Electronics and Electric Motors for Electric-Drive Vehicles (Presentation)  

SciTech Connect (OSTI)

This presentation is an overview of the power electronics and electric motor thermal management and reliability activities at NREL. The focus is on activities funded by the Department of Energy Vehicle Technologies Office Advanced Power Electronics and Electric Motors Program.

Narumanchi, S.

2014-09-01T23:59:59.000Z

189

Sandia National Laboratories: Energy Security  

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

is collaborating with Sandia National Laboratories on a new concentrated solar power (CSP) installation with thermal energy storage. The CSP storage project combines Areva's...

190

Sandia National Laboratories: Solar Newsletter  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

191

Sandia National Laboratories: Renewable Energy  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

192

Sandia National Laboratories: Energy Storage  

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

Molten Salt Energy-Storage Demonstration On May 21, 2014, in Capabilities, Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar Thermal Test Facility,...

193

Sandia National Laboratories: Systems Analysis  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

194

Sandia National Laboratories: Solar Energy  

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

Air Force Research Laboratory Testing On August 17, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Renewable Energy, Solar...

195

Sandia National Laboratories: Solar Tower  

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

Power, EC, Energy, National Solar Thermal Test Facility, News, Partnership, Renewable Energy, Solar On June 26 and 27, a series of exposures were made to multiple Boeing test...

196

Sandia National Laboratories: Solar Research  

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

Research Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events,...

197

Sandia National Laboratories: Solar Two  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

198

Sandia National Laboratories: sustainable photovoltaics  

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

photovoltaics Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal Test...

199

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

Power Plant Solar Power Ideal Gas Turbine Topping Braytonefficiency of a solar power plant with gas-turbine toppingfor a solar power plant with Brayton-cycle gas turbine

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

200

Competitiveness of Wind Power with the Conventional Thermal Power Plants Using Oil and Natural Gas as Fuel in Pakistan  

Science Journals Connector (OSTI)

Abstract The fossil fuels mainly imported oil and natural gas are major sources of electricity generation in Pakistan. The combustion of fossil fuels in thermal power plants has greater environmental impacts like air pollution and global warming. Additionally, the import of oil is a heavy burden on the poor economy of the country. Pakistan is a country with huge renewable sources; wind energy being the major one. This paper elucidate the cost-competitiveness of wind power with the conventional thermal power plants. In this regard, Levelized estimated cost of a 15MW wind power plant is compared with three types of conventional thermal power plants, namely (i) Oil-fired thermal power plant (ii) Natural gas-fire combine cycle power plant (iii) Diesel oil- fired gas turbine cycle 100MW each. The results show that the cost of wind energy is lowest with Rs. 3/kWh. It is concluded that the wind power is cost-competitive to the conventional thermal power plants in Pakistan. The cost estimation for wind energy is lowest of all others with Rs. 3/kWh.

A. Mengal; M.A. Uqaili; K. Harijan; Abdul Ghafoor Memon

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Solar thermal power generation: a bibliography with abstracts. Quarterly update, July-September 1979  

SciTech Connect (OSTI)

This annotated bibliography covers the following subjects: energy overviews, solar overviews, energy conservation, economics and law, solar thermal power, thermionic and thermoelectric, ocean thermal energy conversion, wind power, biomass and photochemical energy, and large scale photovoltaics. An author index and a keyword index are included. (MHR)

Not Available

1980-02-01T23:59:59.000Z

202

Solar thermal power generation: a bibliography with abstracts. Quarterly update, April-June 1980  

SciTech Connect (OSTI)

This annotated bibliography covers the following subjects: energy overviews; solar overviews; energy conservation; environment, law, and policy; total energy systems; solar thermal power and energy storage; thermoelectric, thermionic, and thermolysis; Ocean Thermal Energy Conversion; wind energy; biomass; bioconversion, and photochemical; satellite power systems; and photovoltaic applications. (MHR)

Sparkman, T.; Bozman, W.R. (eds.)

1980-08-01T23:59:59.000Z

203

Co-Simulation of Functional SystemC TLM Models with Power/Thermal Solvers  

E-Print Network [OSTI]

Co-Simulation of Functional SystemC TLM Models with Power/Thermal Solvers Tayeb Bouhadiba CNRS at the system-level need to be developed. Existing approaches for system-level power and thermal analysis several problems: most obvious are battery life for portable devices as well as heating of devices

Boyer, Edmond

204

Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters  

E-Print Network [OSTI]

Thermal Effects on Inverted Pendulum Thrust Stands for Steady-state High-power Plasma Thrusters A and Aerospace Engineering Department Princeton University, Princeton, New Jersey 08544 AIAA-2003-4842§ July 22, 2003 Abstract Thermal effects on direct measurements of the thrust produced by steady-state, high-power

Choueiri, Edgar

205

Sustainable solar thermal power generation (STPG) technologies in Indian context  

SciTech Connect (OSTI)

India is a fast developing country. Some of the factors like population growth, industrialization, liberalization in economic policies, green revolution and awareness toward the environment, are increasing the electricity demand rapidly. As per the 14th Power Survey Report, an energy deficit of (+) 9% and peak demand deficit of (+) 18% have been estimated. Keeping in view the liberalization in economic policies, this deficit may be higher by the year 2000 AD. An estimation indicates that India is blessed with solar energy to the tune of 5 x 10{sup 15} kWh/yr. Being clean and inexhaustible source of energy, it can be used for large-scale power generation in the country. Keeping in view the present state-of-art technologies for STPG in MW range, best possible efforts are required to be made by all the concerned, to develop sustainable STPG technology of the future, specially for tropical regions. Standardization of vital equipment is an important aspect. There are a few required criteria like simple and robust technology, its transfer and adaptation in tropical climate conditions; high plant load factor without fossil-fired backup; availability of plant during evening peak and night hours; least use of fragile components, and capacity optimization for MW plants as per solar irradiance and environmental factors. In this paper, efforts have been made to compare the different STPG technologies. On the basis, of literature surveyed and studies carried out by the author, it may be stated that Central Receiver System technologies using molten salt and volumetric air receiver, along with molten salt and ceramic thermal storage respectively seems to be suitable and comparable in Indian context. Performance of SOLAR-TWO and PHOEBUS plants may be decisive.

Sharma, R.S. [Ministry of Non-Conventional Energy Sources, New Delhi (India). Solar Energy Centre

1996-12-31T23:59:59.000Z

206

High-power TSP bits. [Thermally Stable Polycrystalline diamond  

SciTech Connect (OSTI)

This paper reviews a three-year R D project to develop advanced thermally stable polycrystalline diamond (TSP) bits that can operate at power levels 5 to 10 times greater than those typically delivered by rotary rigs. These bits are designed to operate on advanced drilling motors that drill 3 to 6 times faster than rotary rigs. TSP bit design parameters that were varied during these tests include cutter size, shape, density, and orientation. Drilling tests conducted in limestone, sandstone, marble, and granite blocks showed that these optimized bits drilled many of these rocks at 500 to 1,000 ft/hr (150 to 300 m/h), compared to 50 to 100 ft/hr (15 to 30 m/h) for roller bits. These tests demonstrated that TSP bits are capable of operating at the high speeds and high torques delivered by advanced drilling motors now being developed. These advanced bits and motors are designed for use in slim-hole and horizontal drilling applications.

Cohen, J.H.; Maurer, W.C. (Maurer Engineering Inc., Houston, TX (United States)); Westcott, P.A. (Gas Research Inst., Chicago, IL (United States))

1994-03-01T23:59:59.000Z

207

The Solar Power Tower Jlich A Solar Thermal Power Plant for Test and Demonstration of Air Receiver Technology  

Science Journals Connector (OSTI)

The open volumetric receiver technology allows the use of air as heat transfer medium at high temperatures in solar thermal power tower plants. It combines porous ceramic ... a strictly modular receiver design. H...

K. Hennecke; P. Schwarzbzl; G. Koll

2009-01-01T23:59:59.000Z

208

Sandia National Laboratories: Z Pulsed Power Facility: Publications  

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

Z-Machine Z-Machine About Z Z Research Z News Contact Us Facebook Twitter YouTube Flickr RSS Top Z News Publications Z-Machine Publications Archive Inertial Confinement Fusion Dynamic Hohlraums Thomas W. L. Sanford, "Overview of the Dynamic-Hohlraum X-ray Source at Sandia National Laboratories," April 2007 (1.5 MB PDF) T.W.L. Sanford, "Comparative properties of the Interior and Blowoff Plasmas in a dynamic Hohlraum," April 2007 (1.39 KB PDF) Tom Nash, "Current Scaling of Axially Radiated Power in dynamic Hohlraums and Dynamic Hohlraum Load Design for ZR," March 2007 (2.15 PDF) R. A. Vesey, "Target Design for High Fusion Yield with the Double Z-pinch driven Hohlraums," March 2007 (1.65 PDF) T.W.L. Sanford, "Wire Initiation Critical for Radiation symmetry

209

High-Temperature Thermal Array for Next Generation Solar Thermal...  

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

3 Q1 High-Temperature Thermal Array for Next Generation Solar Thermal Power Production - FY13 Q1 This document summarizes the progress of this Los Alamos National Laboratory...

210

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet), Thermal Test Facility (TTF), NREL (National Renewable Energy Laboratory)  

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

Maximizing Thermal Efficiency and Maximizing Thermal Efficiency and Optimizing Energy Management Scientists at this living laboratory develop optimal solutions for managing energy flows within buildings and transportation systems. The built environment is stressing the utility grid to a greater degree than ever before. Growing demand for electric vehicles, space conditioning, and plug loads presents a critical opportunity for more effective energy management and development of efficiency technologies. Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing this opportunity. Through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems,

211

Determination of Thermal-Degradation Rates of Some Candidate Rankine-Cycle Organic Working Fluids for Conversion of Industrial Waste Heat Into Power  

E-Print Network [OSTI]

DETERMINATION OF THERMAL-DEGRADATION RATES OF SOME CANDIDATE RANKINE-CYCLE ORGANIC WORKING FLUIDS FOR CONVERSION OF INDUSTRIAL WASTE HEAT INTO POWER Mohan L. Jain, Jack Demirgian, John L. Krazinski, and H. Bushby Argonne National Laboratory..., Argonne, Illinois Howard Mattes and John Purcell U.S. Department of Energy ABSTRACT Serious concerns over the long-term thermal In a previous study [1] based on systems stability of organic working fluids and its effect analysis and covering...

Jain, M. L.; Demirgian, J.; Krazinski, J. L.; Bushby, H.; Mattes, H.; Purcell, J.

1984-01-01T23:59:59.000Z

212

Transient Non-linear Thermal FEM Simulation of Smart Power Switches and Verification by Measurements  

E-Print Network [OSTI]

Thermal FEM (Finite Element Method) simulations can be used to predict the thermal behavior of power semiconductors in application. Most power semiconductors are made of silicon. Silicon thermal material properties are significantly temperature dependent. In this paper, validity of a common non-linear silicon material model is verified by transient non-linear thermal FEM simulations of Smart Power Switches and measurements. For verification, over-temperature protection behavior of Smart Power Switches is employed. This protection turns off the switch at a pre-defined temperature which is used as a temperature reference in the investigation. Power dissipation generated during a thermal overload event of two Smart Power devices is measured and used as an input stimulus to transient thermal FEM simulations. The duration time of the event together with the temperature reference is confronted with simulation results and thus the validity of the silicon model is proved. In addition, the impact of non-linear thermal properties of silicon on the thermal impedance of power semiconductors is shown.

V. Kosel; R. Sleik; M. Glavanovics

2008-01-07T23:59:59.000Z

213

An Evaluation of Our National Policy to Manage Nuclear Waste from Power Plants  

Science Journals Connector (OSTI)

The current national policy to manage nuclear waste from power plants is to dispose ... of the analysis strongly suggest that our national policy to manage nuclear waste should be changed.

Ralph L. Keeney; Detlof von Winterfeldt

1997-01-01T23:59:59.000Z

214

Compact thermal modeling for package design with practical power maps  

E-Print Network [OSTI]

47 (2014) 7185 Power grids Comparison of TemperatureWe can abstract this power grid model into a discrete multi-is partitioned into p n m power grids as shown in Fig. 1,

Liu, Zao; Tan, Sheldon; Hua, Yingbo; Wang, Hai; Gupta, Ashish

2014-01-01T23:59:59.000Z

215

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

with Sensible- Heat Storage Solar Power Plant with Sulfurof the Solar Power Plant Storage-Vessel Design, . . . . .System for Chemical Storage of Solar Energy. UC Berkeley,

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

216

Thermal energy storage technologies and systems for concentrating solar power plants  

Science Journals Connector (OSTI)

This paper presents a review of thermal energy storage system design methodologies and the factors to be considered at different hierarchical levels for concentrating solar power (CSP) plants. Thermal energy storage forms a key component of a power plant for improvement of its dispatchability. Though there have been many reviews of storage media, there are not many that focus on storage system design along with its integration into the power plant. This paper discusses the thermal energy storage system designs presented in the literature along with thermal and exergy efficiency analyses of various thermal energy storage systems integrated into the power plant. Economic aspects of these systems and the relevant publications in literature are also summarized in this effort.

Sarada Kuravi; Jamie Trahan; D. Yogi Goswami; Muhammad M. Rahman; Elias K. Stefanakos

2013-01-01T23:59:59.000Z

217

How the National Labs Help Us Understand the Inner Workings of Power Plants  

Broader source: Energy.gov [DOE]

Learn more about research at the National Energy Technology Lab that's helping us understand more about what happens inside power plants.

218

HeatProbe: a Thermal-based Power Meter System for Tracking Per-user Power Consumption  

E-Print Network [OSTI]

HeatProbe: a Thermal-based Power Meter System for Tracking Per-user Power Consumption Nan-Chen Chen Technology Innovation, Academic Sinica2 {b97006, b96118, b95701241}@csie.ntu.edu.tw, cwyou@citi.sinica.edu.tw, hchu@csie.ntu.edu.tw, mschen@citi.sinica.edu.tw Abstract. This paper proposes HeatProbe, a per

Chu, Hao-hua

219

Modeling and Simulation of Solar Chimney Power Plant with and without the Effect of Thermal Energy Storage Systems.  

E-Print Network [OSTI]

??A solar updraft tower power plant sometimes also called 'solar chimney' or just solar tower is a solar thermal power plant utilizing a (more)

Daba, Robera

2011-01-01T23:59:59.000Z

220

Research and Development for Novel Thermal Energy Storage Systems (TES) for Concentrating Solar Power (CSP)  

SciTech Connect (OSTI)

The overall objective was to develop innovative heat transfer devices and methodologies for novel thermal energy storage systems for concentrating solar power generation involving phase change materials (PCMs). Specific objectives included embedding thermosyphons and/or heat pipes (TS/HPs) within appropriate phase change materials to significantly reduce thermal resistances within the thermal energy storage system of a large-scale concentrating solar power plant and, in turn, improve performance of the plant. Experimental, system level and detailed comprehensive modeling approaches were taken to investigate the effect of adding TS/HPs on the performance of latent heat thermal energy storage (LHTES) systems.

Faghri, Amir; Bergman, Theodore L; Pitchumani, Ranga

2013-09-26T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Topology, design, analysis and thermal management of power electronics for hybrid electric vehicle  

E-Print Network [OSTI]

Topology, design, analysis and thermal management of power electronics for hybrid electric vehicle an important role in the success of electric, hybrid and fuel cell vehicles. Typical power electronics circuits/DC converter; electric drives; electric vehicles; fuel cell; hybrid electric vehicles; power electronics, motor

Mi, Chunting "Chris"

222

Productivity change of coal-fired thermal power plants in India: a Malmquist index approach  

Science Journals Connector (OSTI)

......productivity. Keywords: coal-fired power plants...infrastructure for the socio- economic development of a...Manufacturing industry, Economic and Political Weekly...Performance analysis of coal fired power plants...PRODUCTIVITY CHANGE OF COAL-FIRED THERMAL POWER...Asia Pacific Annual Economic Association (APEA......

S. K. Behera; J. A. Farooquie; A. P. Dash

2011-10-01T23:59:59.000Z

223

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network [OSTI]

Solar thermal energy collection is an exciting technology for the replacement of non-renewable energy production.

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

224

The influence of condenser cooling seawater fouling on the thermal performance of a nuclear power plant  

Science Journals Connector (OSTI)

Abstract This study performs a thermodynamic analysis and energy balance to study the effect of fouling change on the thermal performance of the condenser and the thermal efficiency of a proposed nuclear power plant. The study is carried out on a pressurized water reactor nuclear power plant. The results of the study show that the increasing of fouling factor decreases the power output and the thermal efficiency of the nuclear power plant. The main results of this study is that the impact of an increase in the condenser cooling seawater fouling factor in the range 0.000150.00035m2K/W is led to a decrease in the plant output power and thermal efficiency of 1.36% and 0.448%, respectively. The present paper researches into a real practical factor that has significant negative effect on the thermal efficiency of the nuclear power plants, which is fouling of condenser cooling seawater. This is abundantly important since one of the top goals of new power stations are to increase their thermal efficiency, and to prevent or minimize the reasons that lead to loss of output power.

Said M.A. Ibrahim; Sami I. Attia

2015-01-01T23:59:59.000Z

225

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

provide solar power plant energy storage for a reasonablefor Chemical Storage of Solar Energy. UC Berkeley, M.S.for a solar power plant without energy storage for nighttime

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

226

High-density thermoelectric power generation and nanoscale thermal metrology  

E-Print Network [OSTI]

Thermoelectric power generation has been around for over 50 years but has seen very little large scale implementation due to the inherently low efficiencies and powers available from known materials. Recent material advances ...

Mayer, Peter (Peter Matthew), 1978-

2007-01-01T23:59:59.000Z

227

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

Design. Propofied Solar Cooling Tower Type Wet-Cooled Powerdry-cooling tower was used in the proposed solar power plantTower Power-Generation Subsystem Summary An Overall Summary of the Proposed Solar

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

228

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

Cecil. E. A. , Research on Dry-Type Cooling _T_o_w_e_r~s~f~oTower Type Wet-Cooled Power Plant Solar-Power Plant Dry-Cool

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

229

Sandia National Laboratories: wind turbines produce rated power  

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

turbines produce rated power Increasing the Scaled Wind Farm Technology Facility's Power Production On April 7, 2014, in Energy, Facilities, News, News & Events, Partnership,...

230

Project Profile: Innovative Phase Change Thermal Energy Storage Solution for Baseload Power  

Broader source: Energy.gov [DOE]

Infinia, under the Baseload CSP FOA, is developing and demonstrating a subscale system for baseload CSP power generation using thermal energy storage (TES) in a unique integration of innovative enhancements that improves performance and reduces cost.

231

Investigation into the Probable Cause of Failure of Economizer Tube of a Thermal Power Plant  

Science Journals Connector (OSTI)

In this investigation, we examined the probable cause of failure of a welded joint of a economizer tube of a 210MW thermal power ... scanning electron microscopic (SEM) examination of the economizer tube were ca...

Atanu Saha; H. Roy; A. K. Shukla

2010-06-01T23:59:59.000Z

232

Studies of the thermal circuit of an advanced integrated gasification combined-cycle power plant  

Science Journals Connector (OSTI)

The results obtained from a study of the thermal circuit of a combined-cycle plant with coal gasification are presented, and ... of producer gas and calculated values of the combined-cycle power plant efficiency ...

D. G. Grigoruk; A. V. Turkin

2010-02-01T23:59:59.000Z

233

Impact assessment of nuclear and thermal power plants on zooplankton in cooling ponds  

Science Journals Connector (OSTI)

The current state of assessment of nuclear and thermal power plant toxic effects on zooplankton entrained in ... particular emphasis is given to specific features of cooling reservoirs and their ecosystems. Compl...

N. V. Kartasheva; D. V. Fomin; A. V. Popov

2008-09-01T23:59:59.000Z

234

GRC Workshop: The Power of the National Geothermal Data System | Department  

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

GRC Workshop: The Power of the National Geothermal Data System GRC Workshop: The Power of the National Geothermal Data System GRC Workshop: The Power of the National Geothermal Data System October 2, 2013 (All day) Flyer for the National Geothermal Data System workshop at the Geothermal Resources Council Annual Meeting on October 2, 2013 in Las Vegas. Drilling Down: How Legacy and New Research Data Can Advance Geothermal Development-The Power of the National Geothermal Data System (NGDS) A workshop at the Geothermal Resources Council Annual Meeting in Las Vegas, Nevada Abstract: The National Geothermal Data System's (NGDS) launch in 2014 will provide open access to millions of datasets, sharing technical geothermal-relevant data across the geosciences to propel geothermal development and production forward. By aggregating findings from the Energy Department's RD&D projects

235

Spectroscopy of infrared emission characteristics of thermal power plant boiler coal ash deposits  

Science Journals Connector (OSTI)

Thermal radiation characteristics of ash deposits on a coal combustion boiler of an electric power plant are investigated. Normal emittance spectra in 2.5-25 m wavelength region and total normal emittance are measured on four kinds of ash at 600-1100K ... Keywords: ash deposit, emittance, pulverized coal combustion boiler furnace, spectroscopic measurement, thermal radiation

Aleksandar Saljnikov; Darko Goricanec; Danijela Dobersek; Dorde Kozic

2007-05-01T23:59:59.000Z

236

PRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM  

E-Print Network [OSTI]

comprising thermal and pumped-storage hydro units a large-scale mixed-integer optimization model is developed of big coal red blocks with several pumped storage plants of di ering e ciencies provides the mainPRIMAL AND DUAL METHODS FOR UNIT COMMITMENT IN A HYDRO-THERMAL POWER SYSTEM R. Gollmer1 , A. Moller

Römisch, Werner

237

Study on thermal performance of high power LED employing aluminum filled epoxy composite as thermal interface material  

Science Journals Connector (OSTI)

Abstract This paper elucidates the thermal behavior of an LED employing metal filled polymer matrix as thermal interface material (TIM) for an enhanced heat dissipation characteristic. Highly thermal conductive aluminum (Al) particles were incorporated in bisphenol A diglycidylether (DGEBA) epoxy matrix to study the effect of filler to polymer ratio on the thermal performance of high power LEDs. The curing behavior of DGEBA was studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The dispersion nature of the Al fillers in polymer matrix was verified with Field Emission Scanning Electron Microscope (FESEM). The thermal performance of synthesized Al filled polymer composite as TIM was tested with an LED employing thermal transient measurement technique. Comparing the filler to polymer ratio, the rise in junction temperature for 60wt% Al filled composite was higher by 11.1C than 50wt% Al filled composite at cured state. Observed also from the structure function analysis that the total thermal resistance was 10.96K/W higher for 60wt% Al filled composite compared to 50wt% Al filled composite. On the other hand, a significant rise of 9.5C in the junction temperature between cured and uncured samples of 50wt% Al filled polymer TIM was observed and hence the importance of curing process of metal filled polymer composite for effective heat dissipation is discussed extensively in this work.

P. Anithambigai; S. Shanmugan; D. Mutharasu; T. Zahner; D. Lacey

2014-01-01T23:59:59.000Z

238

Lignite-fired thermal power plants and SO2 pollution in Turkey  

Science Journals Connector (OSTI)

About 80% of the electric energy production in Turkey is provided by thermal power plants which use fossil fuels. Lignite, the most abundant domestic energy source, is consumed in most of these plants. Turkey has approximately 0.85% of the world's lignite reserves; however, the Turkish lignites have low calorific value and contain relatively higher amounts of ash, moisture, and sulfur. Nearly 80% of the lignite mined in Turkey is consumed in the thermal power plants since it is not appropriate for use in other types of industry and heating. In Turkey, 13 large-scale lignite-fired thermal power plants are responsible for a considerable amount of air pollution. Therefore, it is crucial to decide on the optimal place and technology for the future thermal power plants, and to equip the currently operating plants with newer technologies that will reduce amount of contaminants released into the air. In this study, the effects of the lignite-fired thermal power plants which have an important place in the energy politics in Turkey on the air pollution are investigated. We focused on SO2 pollution and the regions in which the SO2 emissions were concentrated and diffused. The pollutant diffusion areas were projected and mapped based on parameters such as wind data, isotherm curves, population density, and topographic features by using Geographical Information System (GIS) software, ArcView. The contribution of the thermal power plants to SO2 pollution was also examined.

Nuriye Peker Say

2006-01-01T23:59:59.000Z

239

Thermal Control of Power Electronics of Electric Vehicles with...  

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

RelevanceObjectives Objectives: * Explore the potential of nucleate boiling for vehicle power electronics cooling. * Conduct numerical heat transfer simulations. * Experimentally...

240

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network [OSTI]

ollection subsystem uses heliostats and a central receiverhr Installed Cost of the Heliostats* - Installed Cost of thein Chapter 4. Table 2-4. Heliostats Reference Solar Power

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Rock bed thermal storage for concentrating solar power plants.  

E-Print Network [OSTI]

??ENGLISH ABSTRACT: Concentrating solar power plants are a promising means of generating electricity. However, they are dependent on the sun as a source of energy, (more)

Allen, Kenneth Guy

2014-01-01T23:59:59.000Z

242

Power plants coordination for economic and environmental load dispatch of thermal power plants with wind generation systems  

Science Journals Connector (OSTI)

Economic load dispatch (ELD) and economic emission dispatch (EED) have been applied to obtain generation scheduling of thermal power plants at optimum fuel cost and emissions. Due to limited availability of quality coal, issue of environmental emissions and high prices of coal, installation of renewable energy systems are suggested in power grid. Renewable energy system preferably wind generators are used in co-working with thermal plant which reduces generation cost, coal requirement and environmental emissions. This paper presents Newton-Raphson method to obtain ELD and EED. System simulation and programming is carried out in MATLAB environment. Analysis has been made on generation cost and for nitrous oxides emissions only due to its harmful effects and its rising tendency with excess air. Price penalty factor is also calculated to determine emission cost. Doubly fed induction generator (DFIG) is suggested as wind energy systems in combination with coal-based thermal plant. Performance results related to generation scheduling, transmission line loading, bus voltages, total cost and environmental emissions are shown for coal-based thermal power plant and with co-generation. The investigation shows that with co-generation, coal-based thermal power plant runs at minimum emissions level which further reflects on the generation economy.

Kishor B. Porate; Krishna L. Thakre; Ghanashyam Bodhe

2013-01-01T23:59:59.000Z

243

Novel Thermal Storage Technologies for Concentrating Solar Power Generation  

SciTech Connect (OSTI)

The technologies that are to be developed in this work will enable storage of thermal energy in 100 MWe solar energy plants for 6-24 hours at temperatures around 300oC and 850oC using encapsulated phase change materials (EPCM). Several encapsulated phase change materials have been identified, fabricated and proven with calorimetry. Two of these materials have been tested in an airflow experiment. A cost analysis for these thermal energy storage systems has also been conducted that met the targets established at the initiation of the project.

Neti, Sudhakar; Oztekin, Alparslan; Chen, John; Tuzla, Kemal; Misiolek, Wojciech

2013-06-20T23:59:59.000Z

244

Sandia National Laboratories: Compact Linear Fesnel Reflector  

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

is collaborating with Sandia National Laboratories on a new concentrated solar power (CSP) installation with thermal energy storage. The CSP storage project combines Areva's...

245

Sandia National Laboratories: Advanced Materials Laboratory  

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

Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar Thermal Test Facility,...

246

Sandia National Laboratories: SunShot  

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

SunShot Solar Regional Test Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test...

247

Sandia National Laboratories: Solar Receiver Shroud  

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

Receiver Shroud Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

248

Sandia National Laboratories: Solar Regional Test Center  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

249

Sandia National Laboratories: innovative solar technologies  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

250

Sandia National Laboratories: Customer Interface Document for...  

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

Gill (6123, 844-1524). Tagged with: Central Receiver test facility * Concentrating Solar Power Systems * CRTF * CSP * molten salt test loop * MSTL * National Solar Thermal...

251

WIND AND WATER POWER TECHNOLOGIES OFFICE Pacific Northwest National...  

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

tethys.pnnl.gov and on Twitter @tethysenviro http:mhk.pnnl.govwikiindex.phpTethysHome http:maps.nrel.govmhkatlas National Renewable Energy Laboratory's MHK...

252

Sandia National Laboratories: green hy-drogen power  

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

hy-drogen power Portable Hydrogen Fuel-Cell Unit to Provide Green, Sustainable Power to Honolulu Port On March 13, 2014, in Center for Infrastructure Research and Innovation...

253

Sandia National Laboratories: Power Production Started on All...  

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

ClimateECEnergyPower Production Started on All Three SWiFT Turbines Power Production Started on All Three SWiFT Turbines Sandia Maps Multiple Paths to Cleaner, Low-Temp Diesels CRF...

254

Sandia National Laboratories: Fuel-Cell-Powered Mobile Lights...  

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

ClimateECAbout ECFacilitiesCenter for Infrastructure Research and Innovation (CIRI)Fuel-Cell-Powered Mobile Lights Tested, Proven, Ready for Commercial Use Fuel-Cell-Powered Mobile...

255

Sandia National Laboratories: sustainable hy-drogen power  

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

hy-drogen power Portable Hydrogen Fuel-Cell Unit to Provide Green, Sustainable Power to Honolulu Port On March 13, 2014, in Center for Infrastructure Research and Innovation...

256

High-Temperature Thermal Array for Next Generation Solar Thermal Power Production- FY13 Q1  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this Los Alamos National Laboratory project, funded by SunShot, for the first quarter of fiscal year 2013.

257

Seventh National Green Power Marketing Conference: Sept. 30-Oct. 2, 2002  

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

Overview for the Seventh National Green Power Conference Overview for the Seventh National Green Power Conference The Seventh National Green Power Marketing Conference was held in Washington D.C. on September 30 - October 2. Conference speakers reviewed the past year's green power highlights, analyzed utility green pricing programs, presented insights into how to target green power demand, examined green certificate trading and tracking mechanisms, and described the best ways to market and sell green power. In addition, Green Power Leadership Awards were presented to recognize those who are significantly advancing the development of renewable electricity sources in the marketplace. We thank the following conference sponsors: E Source, Green Mountain Energy Company, and Xenergy. Event sponsors included ComEd, Fetzer Vineyards, and Uinta Brewing Company.

258

Power and thermal effects of SRAM vs. Latch-Mux design styles and clock gating choices  

Science Journals Connector (OSTI)

This paper studies the impact on energy efficiency and thermal behavior of design style and clock-gating style in queue and array structures. These structures are major sources of power dissipation, and both design styles and various clock gating schemes ... Keywords: architecture, clock gating, power, temperature

Yingmin Li; Mark Hempstead; Patrick Mauro; David Brooks; Zhigang Hu; Kevin Skadron

2005-08-01T23:59:59.000Z

259

Thermal Decomposition of Dichlorosilane Investigated by Pulsed Laser Powered Homogeneous Pyrolysis  

E-Print Network [OSTI]

of vacuum flash pyrolysis of SiH 2Cl2. Ban and Gilbert6 observed SiCl2 by mass spectrometry under sili- conThermal Decomposition of Dichlorosilane Investigated by Pulsed Laser Powered Homogeneous Pyrolysis powered homogeneous pyrolysis of dichlorosilane are reported. Pyrolyses at temperatures of 1350 to 1700 K

Swihart, Mark T.

260

Flow and heat transfer in porous micro heat sink for thermal management of high power LEDs  

Science Journals Connector (OSTI)

A novel porous micro heat sink system is presented for thermal management of high power LEDs, which has high heat transport capability. The operational principle and heat transfer characteristics of porous micro heat sink are analyzed. Numerical model ... Keywords: Heat dissipation, High heat flux, High power LEDs, Porous media, Porous micro heat sink

Z. M. Wan; J. Liu; K. L. Su; X. H. Hu; S. S. M

2011-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Productivity change of coal-fired thermal power plants in India: a Malmquist index approach  

Science Journals Connector (OSTI)

......coal are taken into consideration and power plants which use lignite as primary fuel are excluded from the study. Power plants...REDDY, Y. V. (2006) Importance of productivity in India. Reserve Bank India Bulletin, 6572. REVIEW OF PERFORMANCE OF THERMAL......

S. K. Behera; J. A. Farooquie; A. P. Dash

2011-10-01T23:59:59.000Z

262

Analysis and Reduction of Power Grid Models under Uncertainty Sandia National Laboratories  

E-Print Network [OSTI]

1.30pm Analysis and Reduction of Power Grid Models under Uncertainty Habib Najm Sandia National Laboratories Abstract The increased utilization of alternative energy sources requires that evolving power grid Uncertainty Eigenproblem Closure Analysis and Reduction of Power Grid Models under Uncertainty H.N. Najm

Levi, Anthony F. J.

263

Vehicle Technologies Office Merit Review 2014: Thermal Control of Power Electronics of Electric Vehicles with Small Channel Coolant Boiling  

Broader source: Energy.gov [DOE]

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

264

Solar Thermal Power Generation and Industrial Process Heat  

Science Journals Connector (OSTI)

A solar chimney power plant consists of a transparent tubular chimney over 200m tall rising from a...2 covered with a transparent material (Haaf et al. 1983). At the base of the chimney is located a turbine driv...

Brian Norton

2014-01-01T23:59:59.000Z

265

Transient thermal analysis of a space reactor power system  

E-Print Network [OSTI]

Thermoelectric Power Conversion Module Heat Pipe Radiator Module . Auxiliary Modules . Flow of Calculation . Transient Test Cases Studied Summary . 10 10 CHAPTER II. ENERGY EQUATION FINITE DIFFERENCING . . 12 Energy Equation for a Solid Finite..., but this stud~ uses a generic liquid metal cooled fast reactor concept as the model to test the code. The space power svstem to be modeled consists of a liquid lithium cooled fast reactor, primarv and secondary loops svith a sell-induced thermoelectric...

Gaeta, Michael J.

1988-01-01T23:59:59.000Z

266

Monitoring the Thermal Power of Nuclear Reactors with a Prototype Cubic Meter Antineutrino Detector  

E-Print Network [OSTI]

In this paper, we estimate how quickly and how precisely a reactor's operational status and thermal power can be monitored over hour to month time scales, using the antineutrino rate as measured by a cubic meter scale detector. Our results are obtained from a detector we have deployed and operated at 25 meter standoff from a reactor core. This prototype can detect a prompt reactor shutdown within five hours, and monitor relative thermal power to three percent within seven days. Monitoring of short-term power changes in this way may be useful in the context of International Atomic Energy Agency's (IAEA) Reactor Safeguards Regime, or other cooperative monitoring regimes.

A. Bernstein; N. S. Bowden; A. Misner; T. Palmer

2008-04-30T23:59:59.000Z

267

Sandia National Laboratories: Z Pulsed Power Facility: About Z  

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

About Z About Z Picture of Z Machine Sandia's Z machine is Earth's most powerful pulsed-power facility and X-ray generator. Z compresses energy in time and space to achieve extreme powers and intensities, found nowhere else on Earth. In approximately 200 shots Z fires every year, the machine uses currents of about 26 million amps to reach peak X-ray emissions of 350 terawatts and an X-ray output of 2.7 megajoules. The Z machine is located in Albuquerque, N.M., and is part of Sandia's Pulsed Power Program, which began in the 1960s. Pulsed power is a technology that concentrates electrical energy and turns it into short pulses of enormous power, which are then used to generate X-rays and gamma rays. Produced in the laboratory, this controlled radiation creates conditions similar to those caused by the detonation of nuclear weapons,

268

Sandia National Laboratories: Sandia Funded to Model Power Pods...  

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

Collaboration for Sandia, UNM Sandia Funded to Model Power Pods for Utility-Scale Wave-Energy Converter On September 16, 2014, in Computational Modeling & Simulation, Energy,...

269

Sandia National Laboratories: PNM Distributed Energy Solar Power...  

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

PNM Distributed Energy Solar Power Program Mesa del Sol Project Is Finalist for International Smart Grid Action Network 2014 Award of Excellence On July 31, 2014, in Distribution...

270

Sandia National Laboratories: reduce the cost of solar power  

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

the cost of solar power Launch of Solar Testing Site in Vermont On November 27, 2013, in Energy, Facilities, News, News & Events, Partnership, Photovoltaic, Photovoltaic Regional...

271

Sandia National Laboratories: character-izing solar-power-plant...  

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

character-izing solar-power-plant output variability Sandia PV Team Publishes Book Chapter On January 21, 2014, in Computational Modeling & Simulation, Energy, Modeling & Analysis,...

272

Power in Collaboration: National Energy Literacy Virtual Meet-Up  

Broader source: Energy.gov [DOE]

The webinar will be a dynamic virtual conversation of ongoing efforts from across the country in utilizing the Department of Energy's Energy Literacy Framework to address one of our nation's...

273

High Temperature Thermal Array for Next Generation Solar Thermal Power Production  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

274

Powering the Nuclear Navy | National Nuclear Security Administration  

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

Powering the Nuclear Navy Powering the Nuclear Navy Home > About Us > Our Programs > Powering the Nuclear Navy Powering the Nuclear Navy The Naval Nuclear Propulsion Program provides militarily effective nuclear propulsion plants and ensures their safe, reliable and long-lived operation. This mission requires the combination of fully trained U.S. Navy men and women with ships that excel in endurance, stealth, speed, and independence from supply chains. NNSA's Navy Reactors Program provides the design, development and operational support required to provide militarily effective nuclear propulsion plants and ensure their safe, reliable and long-lived operation. This budget requests more than $1 billion to power a modern nuclear Navy: Continuation of design and development work for the OHIO-class

275

Nice, Cte d'Azur, France, 27-29 September 2006 THERMAL MODELING OF HIGH POWER LED MODULES  

E-Print Network [OSTI]

Nice, Côte d'Azur, France, 27-29 September 2006 THERMAL MODELING OF HIGH POWER LED MODULES D a study of accuracy issues in thermal modeling of high power LED modules on system level. Both physical dynamics (CFD) model of a high power LED module model at a reference application condition, and to validate

Paris-Sud XI, Université de

276

Numerical simulation of heat transfer performance of an air-cooled steam condenser in a thermal power plant  

Science Journals Connector (OSTI)

Numerical simulation of the thermal-flow characteristics and heat transfer performance is made of an air-cooled steam condenser (ACSC) in a thermal power plant by considering the effects of ambient wind speed and...

Xiufeng Gao; Chengwei Zhang; Jinjia Wei; Bo Yu

2009-09-01T23:59:59.000Z

277

A New Neuro-Based Method for Short Term Load Forecasting of Iran National Power System  

Science Journals Connector (OSTI)

This paper presents a new neuro-based method for short term load forecasting of Iran national power system (INPS). A MultiLayer Perceptron ( ... were selected through a peer investigation on historical data relea...

R. Barzamini; M. B. Menhaj; Sh. Kamalvand

2005-01-01T23:59:59.000Z

278

EA-1247: Electrical Power System Upgrades at Los Alamos National Laboratory, Los Alamos, New Mexico  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts for the proposal to upgrade the electrical power supply system for the U.S. Department of Energy Los Alamos National Laboratory to increase the...

279

Cost and performance analysis of concentrating solar power systems with integrated latent thermal energy storage  

Science Journals Connector (OSTI)

Abstract Integrating TES (thermal energy storage) in a CSP (concentrating solar power) plant allows for continuous operation even during times when solar irradiation is not available, thus providing a reliable output to the grid. In the present study, the cost and performance models of an EPCM-TES (encapsulated phase change material thermal energy storage) system and HP-TES (latent thermal storage system with embedded heat pipes) are integrated with a CSP power tower system model utilizing Rankine and s-CO2 (supercritical carbon-dioxide) power conversion cycles, to investigate the dynamic TES-integrated plant performance. The influence of design parameters of the storage system on the performance of a 200MWe capacity power tower CSP plant is studied to establish design envelopes that satisfy the U.S. Department of Energy SunShot Initiative requirements, which include a round-trip annualized exergetic efficiency greater than 95%, storage cost less than $15/kWht and LCE (levelized cost of electricity) less than 6/kWh. From the design windows, optimum designs of the storage system based on minimum LCE, maximum exergetic efficiency, and maximum capacity factor are reported and compared with the results of two-tank molten salt storage system. Overall, the study presents the first effort to construct and analyze LTES (latent thermal energy storage) integrated CSP plant performance that can help assess the impact, cost and performance of LTES systems on power generation from molten salt power tower CSP plant.

K. Nithyanandam; R. Pitchumani

2014-01-01T23:59:59.000Z

280

Exergetic analysis and evaluation of coal-fired supercritical thermal power plant and natural gas-fired combined cycle power plant  

Science Journals Connector (OSTI)

The present work has been undertaken for energetic and exergetic analysis of coal-fired supercritical thermal power plant and natural gas-fired combined cycle power plant. Comparative analysis has been conducted ...

V. Siva Reddy; S. C. Kaushik; S. K. Tyagi

2014-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems  

Office of Scientific and Technical Information (OSTI)

Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems Final Report March 31, 2012 Michael Schuller, Frank Little, Darren Malik, Matt Betts, Qian Shao, Jun Luo, Wan Zhong, Sandhya Shankar, Ashwin Padmanaban The Space Engineering Research Center Texas Engineering Experiment Station Texas A&M University Abstract We demonstrated that adding nanoparticles to a molten salt would increase its utility as a thermal energy storage medium for a concentrating solar power system. Specifically, we demonstrated that we could increase the specific heat of nitrate and carbonate salts containing 1% or less of alumina nanoparticles. We fabricated the composite materials using both evaporative and air drying methods. We tested several thermophysical properties of the composite materials,

282

Parallel Transient Stability Simulation for National Power Grid of China  

Science Journals Connector (OSTI)

With the development of modern power system, real-time simulation and on-line control are becoming more and more critical. Transient stability analysis, where the most intensive computation locates, is the bottle...

Wei Xue; Jiwu Shu; Weimin Zheng

2005-01-01T23:59:59.000Z

283

Sandia National Laboratories: grid-tied wind-power inverters  

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

wind-power inverters Sandia, DOE Energy Storage Program, GeneSiC Semiconductor, U.S. Army ARDEC: Ultra-High-Voltage Silicon Carbide Thyristors On March 29, 2013, in Capabilities,...

284

Sandia National Laboratories: Module-level power electronics  

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

Module-level power electronics Sandia R&D Funded under New DOE SunShot Program On November 27, 2013, in Energy, News, News & Events, Partnership, Photovoltaic, Renewable Energy,...

285

Fifth parabolic dish solar thermal power program annual review: proceedings  

SciTech Connect (OSTI)

The primary objective of the Review was to present the results of activities within the Parabolic Dish Technology and Module/Systems Development element of the Department of Energy's Solar Thermal Energy Systems Program. The Review consisted of nine technical sessions covering overall Project and Program aspects, Stirling and Brayton module development, concentrator and engine/receiver development, and associated hardware and test results to date; distributed systems operating experience; international dish development activities; and non-DOE-sponsored domestic dish activities. A panel discussion concerning business views of solar electric generation was held. These Proceedings contain the texts of presentations made at the Review, as submitted by their authors at the beginning of the Review; therefore, they may vary slightly from the actual presentations in the technical sessions.

None

1984-03-01T23:59:59.000Z

286

Power Marketing Administrations Leading the Nation's Transition to a 21st  

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

Power Marketing Administrations Leading the Nation's Transition Power Marketing Administrations Leading the Nation's Transition to a 21st Century Electric Grid Power Marketing Administrations Leading the Nation's Transition to a 21st Century Electric Grid November 19, 2012 - 12:54pm Addthis The Joint Outreach Team, made up of experts from DOE and the Western Area Power Administration, is working to develop strategies to ensure the viability, sustainability, and resiliency of Western to continue to meet its core mission and respond to the energy challenges of the 21st century. The Joint Outreach Team, made up of experts from DOE and the Western Area Power Administration, is working to develop strategies to ensure the viability, sustainability, and resiliency of Western to continue to meet its core mission and respond to the energy challenges of the 21st century.

287

Oil market power and United States national security  

Science Journals Connector (OSTI)

...Organization of the Petroleum Exporting...occupation of China (8). Unlike...Moreover, U.S. exports were 80% of...protection from imports (ref. 1...Relationship of Oil Imports to the National...Force on Oil Import Control, Washington...History of Petroleum (I. B. Tauris...suspension of Iraqi exports to punish the...

Roger Stern

2006-01-01T23:59:59.000Z

288

Environment impact from ash disposal of the thermal power plant 'Kosova A'  

Science Journals Connector (OSTI)

Mining activities impact on environment is as old as these activities themselves. It is estimated that thermal power plants in Kosova produce about 1.6 million tons of ash per year, and all ash produced is disposed as waste material. The main problems for environment pollution are the ash dumps containing more than 40 million tons of ash cover about 150 ha of land. The ash dumps sites of the thermal power plant Kosovo 'A', which are situated among settlement, present one of the most serious problems in the environment and are one of the potential dangers for underground and surface water.

Sabri Avdullahi; Isalm Fejza; Raif Bytyqi

2010-01-01T23:59:59.000Z

289

Design and optimization of solid thermal energy storage modules for solar thermal power plant applications  

Science Journals Connector (OSTI)

Abstract Solid sensible heat storage is an attractive option for high-temperature storage applications in terms of investment and maintenance costs. Typical solid thermal energy storage systems use a heat transfer fluid to exchange heat as the fluid flows through a tubular heat exchanger embedded in the solid storage material. The modified lumped capacitance method is used with an effective heat transfer coefficient in a simplified analysis of the heat transfer in solid thermal energy storage systems for a solid cylindrical heat storage unit. The analytical solution was found using the Laplace transform method. The solution was then used to develop an optimization method for designing solid storage modules which uses the system requirements (released energy and fluid outlet temperature) as the constraint conditions and the storage module cost as the objective function for the optimization. Optimized results are then given for many kinds of system configurations.

Yongfang Jian; Quentin Falcoz; Pierre Neveu; Fengwu Bai; Yan Wang; Zhifeng Wang

2015-01-01T23:59:59.000Z

290

Metal Hydride Thermal Storage: Reversible Metal Hydride Thermal Storage for High-Temperature Power Generation Systems  

SciTech Connect (OSTI)

HEATS Project: PNNL is developing a thermal energy storage system based on a Reversible Metal Hydride Thermochemical (RMHT) system, which uses metal hydride as a heat storage material. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the sun is not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. PNNLs metal hydride material can reversibly store heat as hydrogen cycles in and out of the material. In a RHMT system, metal hydrides remain stable in high temperatures (600- 800C). A high-temperature tank in PNNLs storage system releases heat as hydrogen is absorbed, and a low-temperature tank stores the heat until it is needed. The low-cost material and simplicity of PNNLs thermal energy storage system is expected to keep costs down. The system has the potential to significantly increase energy density.

None

2011-12-05T23:59:59.000Z

291

Experience gained in a number of countries from using thermal power stations equipped with diesel and gas engines  

Science Journals Connector (OSTI)

Large-capacity thermal power stations and customers cogeneration stations equipped with diesel and gas engines, and their technical-economic and cost...

A. A. Salamov

2007-02-01T23:59:59.000Z

292

Working fluid selection for an increased efficiency hybridized geothermal-solar thermal power plant in Newcastle, Utah.  

E-Print Network [OSTI]

??Renewable sources of energy are of extreme importance to reduce greenhouse gas emissions from traditional power plants. Such renewable sources include geothermal and solar thermal (more)

Carnell, John Walter

2012-01-01T23:59:59.000Z

293

Management of National Nuclear Power Programs for assured safety  

SciTech Connect (OSTI)

Topics discussed in this report include: nuclear utility organization; before the Florida Public Service Commission in re: St. Lucie Unit No. 2 cost recovery; nuclear reliability improvement and safety operations; nuclear utility management; training of nuclear facility personnel; US experience in key areas of nuclear safety; the US Nuclear Regulatory Commission - function and process; regulatory considerations of the risk of nuclear power plants; overview of the processes of reliability and risk management; management significance of risk analysis; international and domestic institutional issues for peaceful nuclear uses; the role of the Institute of Nuclear Power Operations (INPO); and nuclear safety activities of the International Atomic Energy Agency (IAEA).

Connolly, T.J. (ed.)

1985-01-01T23:59:59.000Z

294

A review of studies on central receiver solar thermal power plants  

Science Journals Connector (OSTI)

The use of central receiver system (CRS) for electricity production promises to be one of the most viable options to replace fossil fuel power plants. Indeed, research and development activities on its basic subsystems have been booming rapidly since 1980s. This paper reviews the most important studies on the major components of central receiver solar thermal power plants including the heliostat field, the solar receiver and the power conversion system. After an overview of Concentrating Solar Power (CSP) technology, current status and applications of the \\{CRSs\\} are highlighted. Next, a detailed literature survey of existing design comprising optical, thermal and thermodynamic analysis, and techniques used to assess components have been arranged. This is followed by experimental investigations in which design concepts are established. The last section contains recent subsequent improvement of such key components as heliostat, receiver and hybrid solar gas turbine that are boosting in many R&D activities merging international collaboration during the past 30 years.

Omar Behar; Abdallah Khellaf; Kamal Mohammedi

2013-01-01T23:59:59.000Z

295

Oil market power and United States national security  

Science Journals Connector (OSTI)

...assuming cOPEC demand growth of 2% (2004 cOPEC demand is unavailable...that importer demand reduction might...power, not oil per se, creates...military spending per capita (38). Iran's...However, Iran's energy consumption equals...domestic product (GDP) (39...

Roger Stern

2006-01-01T23:59:59.000Z

296

The National Ignition Facility National Ignition Campaign Short Pulse Lasers High-Average-Power Laser  

E-Print Network [OSTI]

#12;The National Ignition Facility National Ignition Campaign Short Pulse Lasers High hole shields SSD, Polarization smoothing Improvements in ignition point designs have reduced laser Campaign NIF-0905-11310 09EIM/dj 1997 1.7 MJ ignition point design 0.5 0.4 0.3 0.2 0.1 0 0 0.5 1 1.5 Laser

297

Effects of thermocline on performance of underwater gliders power system propelled by ocean thermal energy  

Science Journals Connector (OSTI)

The thermal gliders changeable volume produces propelling force to power the gliders descending and ascending through ... affect the working processes of the gliders power system. Based on the enthalpy method,...

Hai Yang; Jie Ma

2009-12-01T23:59:59.000Z

298

Testing thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems used in parabolic trough solar power plants.  

SciTech Connect (OSTI)

Parabolic trough power systems that utilize concentrated solar energy to generate electricity are a proven technology. Industry and laboratory research efforts are now focusing on integration of thermal energy storage as a viable means to enhance dispatchability of concentrated solar energy. One option to significantly reduce costs is to use thermocline storage systems, low-cost filler materials as the primary thermal storage medium, and molten nitrate salts as the direct heat transfer fluid. Prior thermocline evaluations and thermal cycling tests at the Sandia National Laboratories' National Solar Thermal Test Facility identified quartzite rock and silica sand as potential filler materials. An expanded series of isothermal and thermal cycling experiments were planned and implemented to extend those studies in order to demonstrate the durability of these filler materials in molten nitrate salts over a range of operating temperatures for extended timeframes. Upon test completion, careful analyses of filler material samples, as well as the molten salt, were conducted to assess long-term durability and degradation mechanisms in these test conditions. Analysis results demonstrate that the quartzite rock and silica sand appear able to withstand the molten salt environment quite well. No significant deterioration that would impact the performance or operability of a thermocline thermal energy storage system was evident. Therefore, additional studies of the thermocline concept can continue armed with confidence that appropriate filler materials have been identified for the intended application.

Kelly, Michael James; Hlava, Paul Frank; Brosseau, Douglas A.

2004-07-01T23:59:59.000Z

299

National Lab Helping to Train Operators for Next Generation of Power Plants  

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

National Lab Helping to Train Operators for Next Generation of National Lab Helping to Train Operators for Next Generation of Power Plants National Lab Helping to Train Operators for Next Generation of Power Plants January 25, 2013 - 11:10am Addthis AVESTAR provides high-quality, hands-on, simulator-based workforce training delivered by an experienced team of power industry training professionals for West Virginia students. | Photo courtesy of the Office of Fossil Energy. AVESTAR provides high-quality, hands-on, simulator-based workforce training delivered by an experienced team of power industry training professionals for West Virginia students. | Photo courtesy of the Office of Fossil Energy. Gayland Barksdale Technical Writer, Office of Fossil Energy What Does AVESTAR Provide? Advanced dynamic simulation, control and virtual plant technologies

300

The impact of climate policies on the operation of a thermal power plant  

SciTech Connect (OSTI)

Climate policy measures aimed at power markets influence the cost structure of producers and price patterns, and are therefore likely to influence the production decision of power plants, even in the short run. When power plants have costs related to starting and stopping, decisions on short-term production are intertemporal, and the conventional 'price vs. marginal cost' rule is not sufficient to predict production in thermal power plants. This paper analyzes how the optimal production decision is influenced by climate policies: namely, CO{sub 2} trading mechanisms, the expansion of renewables and the interaction between these policies. The main result is that higher power price variation (as a result of increased wind power production) makes the thermal power producer less flexible, but the effect on emissions is ambiguous. A CO{sub 2} cost (as a result of an emission trading system) increases the flexibility of the producer and the operation decision resembles the conventional 'price vs. marginal cost' rule more. This implies lower emissions. However, when the CO{sub 2} price is coupled with higher power price variation, the positive effects may be reversed since the two policies have opposing effects.

Orvika Rosnes [Norwegian University of Life Sciences (Norway)

2008-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Power efficiency for very high temperature solar thermal cavity receivers  

DOE Patents [OSTI]

This invention is an improved solar energy cavity receiver for exposing materials and components to high temperatures. The receiver includes a housing having an internal reflective surface defining a cavity and having an inlet for admitting solar radiation thereto. A photothermal absorber is positioned in the cavity to receive radiation from the inlet. A reflective baffle is positioned between the absorber and the inlet to severely restrict the re-radiation of energy through the inlet. The front surface of the baffle defines a narrow annulus with the internal reflective surface of the housing. The front surface of the baffle is contoured to reflect incoming radiation onto the internal surface of the housing, from which it is reflected through the annulus and onto the front surface of the absorber. The back surface of the baffle intercepts infrared radiation from the front of the absorber. With this arrangement, a high percentage of the solar power input is retained in the cavity; thus, high internal temperatures are attained.

McDougal, Allan R. (LaCanada-Flintridge, CA); Hale, Robert R. (Upland, CA)

1984-01-01T23:59:59.000Z

302

Unique Challenges in the Design and Operation Philosophy of Solar Thermal Power Plants  

Science Journals Connector (OSTI)

Abstract Solar thermal power plant design and operation philosophy involves unique challenges as compared to design of conventional thermal power plants. The solar receiver operation should be able to absorb maximum solar load during transient events like daily start-up and shut-down. This requires aggressive ramp rates for transient operation of the power plant. However, the component and system level limitations must be considered in formulating these modes of operation and ramp rates. A solar receiver which usually receives heat from heliostats is designed to receive high heat flux to operate at high temperature and pressure during daytime. However, during night-time the receiver receives no heat flux and is losing heat to the environment. Day-night cyclic operation of a solar thermal power plant induces thermal cycles in the solar receiver pressure parts. Since solar receiver tubes are not insulated, the amplitude of thermal cycling is significant and needs to be addressed with proper tools and design approach. Besides, higher plant cycle efficiency requires higher operating temperature and pressure of a solar receiver, further increasing the amplitude of thermal cycling. The system level and component level response to these day-night cycles has a significant impact on modes of operation as well as on the life usage of various components. It also affects the design, specifications and operation of various plant level components. The solar thermal power plant design and operation process is optimized by having a system level thermal-hydraulics model for the solar receiver to simulate the transient start-up and shut-down events. Since all of the major components of the system are included in the model, it reflects the transient response of each of the components on each other and on the overall system. This simulation can be used to generate input conditions for component level life usage analysis. The component level life usage analysis is done using the finite-element method. The component level life usage analysis determines the permissible ramp rates. The thermal-hydraulics dynamic simulation outlines the operational philosophy of the system.

R. Terdalkar; H. Qian; G. Ye

2014-01-01T23:59:59.000Z

303

Sandia National Laboratories: Z Pulsed Power Facility: Z Research: Fusion  

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

Fusion Fusion Sun Plasma The ultimate energy source Fusion occurs when two atomic nuclei are joined together. To fuse the atoms, the force that repels them as they come together must be overcome. Accelerators accomplish this by forcing molecules to collide with one another at very high temperatures (high temperatures are simply molecules moving at high speeds). When light nuclei are involved, fusion can produce more energy than was required to start the reaction. This process is the force that powers the Sun, whose source of energy is an ongoing fusion chain reaction. As an unconfined event, fusion was first developed for use in nuclear weapons. Fusion's great potential as a new energy source depends on scientists' ability to harness its power in laboratory events. The Z

304

Sandia National Laboratories: Z Pulsed Power Facility: Z Research: Energy  

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

Energy Energy Picture of Z Machine Z machine contributes to clean-energy technologies The importance of Z in solving the world's energy challenges is directly connected to its fusion potential. Inertial confinement fusion for peaceful production of electricity has always been of interest to Sandia's pulsed power sciences. But today, in light of growing concern about the health of our planet and considering our escalating energy needs, the development of fusion technology is especially promising for several reasons First, the fuel needed for fusion is virtually limitless - deuterium, an isotope of hydrogen, is abundant in seawater; tritium is bred in the fusion power plant process. Half a bathtub full of seawater in a fusion reaction could produce as much energy as 40 train cars of coal.

305

Large-scale Wind Power integration in a Hydro-Thermal Power Market.  

E-Print Network [OSTI]

?? This master thesis describes a quadratic programming model used to calculate the spot prices in an efficient multi-area power market. The model has been (more)

Trtscher, Thomas

2007-01-01T23:59:59.000Z

306

Survey of thermal-hydraulic models of commercial nuclear power plants  

SciTech Connect (OSTI)

A survey of the thermal-hydraulic models of nuclear power plants has been performed to identify the NRC`s current analytical capabilities for critical event response. The survey also supports ongoing research for accident management. The results of the survey are presented here. The PC database which records detailed data on each model is described.

Determan, J.C.; Hendrix, C.E.

1992-12-01T23:59:59.000Z

307

Survey of thermal-hydraulic models of commercial nuclear power plants  

SciTech Connect (OSTI)

A survey of the thermal-hydraulic models of nuclear power plants has been performed to identify the NRC's current analytical capabilities for critical event response. The survey also supports ongoing research for accident management. The results of the survey are presented here. The PC database which records detailed data on each model is described.

Determan, J.C.; Hendrix, C.E.

1992-12-01T23:59:59.000Z

308

Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration  

E-Print Network [OSTI]

Electrical-Thermal Co-analysis for Power Delivery Networks in 3D System Integration Jianyong Xie1 Rubin3 1 School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332 2 IBM Package Design, Development, and Electrical Services Group, Poughkeepsie, N.Y. 12601 3 IBM T

Swaminathan, Madhavan

309

NATIONAL GEODATABASE OF TIDAL STREAM POWER RESOURCE IN USA  

SciTech Connect (OSTI)

A geodatabase of tidal constituents is developed to present the regional assessment of tidal stream power resource in the USA. Tidal currents are numerically modeled with the Regional Ocean Modeling System (ROMS) and calibrated with the available measurements of tidal current speeds and water level surfaces. The performance of the numerical model in predicting the tidal currents and water levels is assessed by an independent validation. The geodatabase is published on a public domain via a spatial database engine with interactive tools to select, query and download the data. Regions with the maximum average kinetic power density exceeding 500 W/m2 (corresponding to a current speed of ~1 m/s), total surface area larger than 0.5 km2 and depth greater than 5 m are defined as hotspots and documented. The regional assessment indicates that the state of Alaska (AK) has the largest number of locations with considerably high kinetic power density, followed by, Maine (ME), Washington (WA), Oregon (OR), California (CA), New Hampshire (NH), Massachusetts (MA), New York (NY), New Jersey (NJ), North and South Carolina (NC, SC), Georgia (GA), and Florida (FL).

Smith, Brennan T [ORNL; Neary, Vincent S [ORNL; Stewart, Kevin M [ORNL

2012-01-01T23:59:59.000Z

310

Power Surge: Uranium alloy fuel for TerraPower | Y-12 National Security  

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

Power Surge: Uranium alloy ... Power Surge: Uranium alloy ... Power Surge: Uranium alloy fuel for TerraPower Posted: July 18, 2012 - 9:45am | Y-12 Report | Volume 9, Issue 1 | 2012 Since 2010, Y-12 has provided TerraPower with technical support in the fabrication methods for uranium alloy fuel to be used in a new traveling wave nuclear reactor that can run for more than 30 years without refueling. Image of reactor power concept, used with permission of TerraPower, LLC. Y-12's nuclear expertise, expanding since the site's integral role in the Manhattan Project, is positioning the Y-12 Complex at the forefront of what Sen. Lamar Alexander repeatedly asserts is needed - "a new Manhattan Project for clean energy independence." TerraPower, a private company backed by Microsoft founder Bill Gates, is

311

Power enhancement of heat engines via correlated thermalization in multilevel systems  

E-Print Network [OSTI]

We analyze a heat machine based on a periodically-driven quantum system permanently coupled to hot and cold baths. It is shown that the maximal power output of a degenerate $V$-type three-level heat engine is that generated by two independent two-level systems. For $N$ levels, this maximal enhancement is $(N-1)$-fold. Hence, level degeneracy is a thermodynamic resource that may effectively boost the power output. The efficiency, however, is not affected. We find that coherence is not an essential asset in multilevel-based heat machines. The existence of multiple thermalization pathways sharing a common ground state suffices for power enhancement.

David Gelbwaser-Klimovsky; Wolfgang Niedenzu; Paul Brumer; Gershon Kurizki

2014-11-05T23:59:59.000Z

312

Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security  

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

Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Smart grid powers up on NNSA land ... Smart grid powers up on NNSA land in Los Alamos Posted By Office of Public Affairs A $53 million state-of-the-art, international smart grid project has been

313

Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security Smart grid powers up on NNSA land in Los Alamos | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Smart grid powers up on NNSA land ... Smart grid powers up on NNSA land in Los Alamos Posted By Office of Public Affairs A $53 million state-of-the-art, international smart grid project has been

314

Sandia National Laboratories: Z Pulsed Power Facility: Z News  

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

Z News Z News Dry-run experiments verify key aspect of Sandia nuclear fusion concept View All News Releases News Releases Fusion instabilities lessened by unexpected effect Jan. 9, 2014 Japanese city councilor journeys to end furor over Sandia Z tests May 23, 2013 Sandia physicist wins two national awards Nov. 29, 2012 Dry-run experiments verify key aspect of Sandia nuclear fusion concept Sept. 17, 2012 Nuclear fusion simulation shows high-gain energy output March 20, 2012 Z researcher Dan Sinars awarded $2.5 million DOE Early Career grant May 25, 2011 Second Z plutonium "shot" safely tests materials for NNSA May 11, 2011 Sandia effort images the sea monster of nuclear fusion: the Rayleigh-Taylor instability Nov. 11, 2010 Image Gallery Video Z In the News Triple-threat method sparks hope for fusion

315

Sandia National Laboratories: Molten Nitrate Salt Initial Flow...  

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

David Gill, ddgill@sandia.gov, (505)-844-1524. Tagged with: Concentrating Solar Power * CSP * Molten Salt * molten salt test loop * National Solar Thermal Test Facility * NSTTF *...

316

Sandia National Laboratories: Molten-Salt Storage System  

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

is collaborating with Sandia National Laboratories on a new concentrated solar power (CSP) installation with thermal energy storage. The CSP storage project combines Areva's...

317

Sandia National Laboratories: SAND2012-10734W  

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

734W Pratt Whitney Rocketdyne Testing On December 19, 2012, in Concentrating Solar Power, EC, Energy, Facilities, National Solar Thermal Test Facility, News, News & Events,...

318

Sandia National Laboratories: Solar Regional Test Center in Vermont...  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

319

Sandia National Laboratories: concentrates sunlight onto a fall...  

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

Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar Thermal Test Facility,...

320

Sandia National Laboratories: reducing start-up risks for solar...  

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

start-up risks for solar thermal generation Sandia Solar Energy Test System Cited in National Engineering Competition On May 16, 2013, in Concentrating Solar Power, Energy, Energy...

Note: This page contains sample records for the topic "national thermal power" 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

Sandia National Laboratories: Improved Method to Measure Glare...  

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

to Measure Glare and Reflected Solar Irradiance On February 27, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

322

Modeling of the rock bed thermal energy storage system of a combined cycle solar thermal power plant in South Africa  

Science Journals Connector (OSTI)

Abstract A thermocline-based rock bed thermal energy storage system potentially offers a cheap and simple way of achieving dispatchability in an air-cooled central receiver CSP plant. In order to efficiently match heliostat field size, storage dimensions, back-up fuel consumption and turbine sizes for non-stop power generation and economic feasibility, year-long power plant simulations have to be run. This paper focuses on the storage as the center of in- and outgoing thermal energy. The derived storage model has one spatial dimension which is justified by the high tube-to-particle diameter ratio and because yearly aggregated and not momentary values are of interest. A validation of the correlations with data from the literature shows acceptable agreement. Sensitivity analyses indicate that, due to low costs of the storage system, above certain minimum storage dimensions, the influence on energetic and monetary performance indicators is marginal. The calculated LCOE is in the range of 0.110.18EUR/kWh and in agreement with other studies on combined cycle CSP plants.

Lukas Heller; Paul Gauch

2013-01-01T23:59:59.000Z

323

Advances in the integration of solar thermal energy with conventional and non-conventional power plants  

Science Journals Connector (OSTI)

Pollution and increasing fuel prices are the main focus for governments today. The main cause of pollution is existing electricity power plants that use huge quantities of fossil fuel. A new strategy should be applied in the coming decades based on the integration of existing power plants with renewable energy sources, such as solar and wind energy. Hybridization of existing power plants with solar energy is one proven option to overcome the problems of pollution and increasing fuel prices. In this paper, a review of the previous studies and papers for integrating solar thermal energy with conventional and non-conventional power plants was carried out. The focus on hybrid solar conventional power plants includes: the review of studies of hybrid solarsteam cycle power plants, integrated solar combined-cycle systems (ISCCS) and hybrid solargas turbine power plants, while for hybrid solar non-conventional power plants the focus of study is hybrid solargeothermal power plants. The most successful option is ISCCS due to their advantages and the plans for implementation at various power plants in the world like in Tunisia, Egypt, Spain, and Iran.

M.S. Jamel; A. Abd Rahman; A.H. Shamsuddin

2013-01-01T23:59:59.000Z

324

An Evolutionary Path for Concentrating Thermal Solar Power Technologies: A New Approach for Modeling CSP Power Costs and Potential  

SciTech Connect (OSTI)

Concentrating thermal solar power (CSP) technology is a potentially competitive power generation option, particularly in arid regions where direct sunlight is abundant. We examine the potential role of CSP power plants and their contribution to carbon emissions reduction. The answers to these questions depend on the cost of electricity generated by CSP plants. Although a few studies have projected future CSP costs based on assumptions for technology advancement and the effect of economies of scale and learning curves, few studies have considered the combined effects of intermittency, solar irradiance changes by season, and diurnal and seasonal system load changes. Because the generation of a solar plant varies over a day and by season, the interactions between CSP generators and other generators in the electric system can play an important role in determining costs. In effect, CSP electricity generation cost will depend on the CSP market penetration. This paper examines this relationship and explores possible evolutionary paths for CSP technologies with and without thermal storage.

Zhang, Yabei; Smith, Steven J.

2008-05-08T23:59:59.000Z

325

Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux  

DOE Patents [OSTI]

Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux. High thermal neutron fluxes generated from the action of a high power proton accelerator on a spallation target allows the efficient burn-up of higher actinide nuclear waste by a two-step process. Additionally, rapid burn-up of fission product waste for nuclides having small thermal neutron cross sections, and the practicality of small material inventories while achieving significant throughput derive from employment of such high fluxes. Several nuclear technology problems are addressed including 1. nuclear energy production without a waste stream requiring storage on a geological timescale, 2. the burn-up of defense and commercial nuclear waste, and 3. the production of defense nuclear material. The apparatus includes an accelerator, a target for neutron production surrounded by a blanket region for transmutation, a turbine for electric power production, and a chemical processing facility. In all applications, the accelerator power may be generated internally from fission and the waste produced thereby is transmuted internally so that waste management might not be required beyond the human lifespan.

Bowman, C.D.

1992-11-03T23:59:59.000Z

326

Sandia National Laboratories` high power electromagnetic impulse sources  

SciTech Connect (OSTI)

Three impulse sources have been developed to cover a wide range of peak power, bandwidth and center frequency requirements. Each of the sources can operate in single shot, rep-rate, or burst modes. These devices are of rugged construction and are suitable for field use. This paper will describe the specifications and principals of operation for each source. The sources to be described are: SNIPER (Sub-Nanosecond ImPulsE Radiator), a coaxial Blumlein pulser with an in-line (series) peaking switch; EMBL (EnantioMorphic BLurfflein), a bipolar parallel plate Blumlein with a crowbar type (parallel) peaking switch; and the LCO (L-C Oscillator) a spark-switched L-C oscillator with damped sinusoidal output. SNIPER and EMBL are ultra-wideband (UWB) sources which produce a very fast high voltage transition. When differentiated by the antenna, an impulse whose width corresponds to the transition time is radiated. The LCO operates with a center frequency up to 800 MHz and up to 100 MHz bandwidth. Because the LCO output is relatively narrow band, high gain antennas may be employed to produce very high radiated field strengths.

Rinehart, L.F.; Buttram, M.T.; Denison, G.J.; Lundstrom, J.M.; Crowe, W.R.; Aurand, J.F.; Patterson, P.E.

1994-10-01T23:59:59.000Z

327

Application of quantum-inspired binary gravitational search algorithm for thermal unit commitment with wind power integration  

Science Journals Connector (OSTI)

Abstract As the application of wind power energy is rapidly developing, it is very important to analyze the effects of wind power fluctuation on power system operation. In this paper, a model of thermal unit commitment problem with wind power integration is established and chance constrained programming is applied to simulate the effects of wind power fluctuation. Meanwhile, a combination of quantum-inspired binary gravitational search algorithm and chance constrained programming is proposed to solve the thermal unit commitment problem with wind power integration. In order to reduce the searching time and avoid the premature convergence, a priority list of thermal units and a local mutation adjustment strategy are utilized during the optimization process. The priority list of thermal units is based on the weight between average full-load cost and maximal power output. Then, a stochastic simulation technique is used to deal with the probabilistic constraints. In addition, heuristic search strategies are used to handle deterministic constraints of thermal units. Furthermore, the impacts of different confidence levels and different prediction errors of wind fluctuation on system operation are analyzed respectively. The feasibility and effectiveness of the proposed method are verified by the test system with wind power integration, and the results are compared with those using binary gravitational search algorithm and binary particle swarm optimization. The simulation results demonstrate that the proposed quantum-inspired binary gravitational search algorithm has a higher efficiency in solving thermal unit commitment problem with wind power integration.

Bin Ji; Xiaohui Yuan; Xianshan Li; Yuehua Huang; Wenwu Li

2014-01-01T23:59:59.000Z

328

Cooling, Heating and Power in the Nation's Colleges and Universities- Census, Survey, and Lessons Learned, February 2002  

Broader source: Energy.gov [DOE]

Presentation on the results of a survey of the nation's colleges and university to identify cooling, heating, and power installations on college campuses

329

Impact of a 1,000-foot thermal mixing zone on the steam electric power industry  

SciTech Connect (OSTI)

Thermal discharge requirements for power plants using once-through cooling systems are based on state water quality standards for temperatures that must be met outside of designated mixing zones. This study evaluates the impact of limiting the extent of thermal mixing zones. This study evaluates the impact of limiting the extent of thermal mixing zones to no more than 1,000 feet from the discharge point. Data were collected from 79 steam electric plants. Of the plants currently using once-through cooling systems, 74% could not meet current thermal standards at the edge of a 1,000-foot mixing zone. Of this total, 68% would retrofit cooling towers, and 6% would retrofit diffusers. The estimated nationwide capital cost for retrofitting plants that could not meet current thermal standards at the edge of a 1,000-foot mixing zone is $21.4 billion. Conversion of a plant from once-through cooling to cooling towers or addition of diffusers would result in a lower energy output from that plant. For the affected plants, the total estimated replacement cost would be $370 to $590 million per year. Some power companies would have to construct new generating capacity to meet the increased energy demand. The estimated nationwide cost of this additional capacity would be $1.2 to $4.8 billion. In addition to the direct costs associated with compliance with a 1,000-foot mixing zone limit, other secondary environmental impacts would also occur. Generation of the additional power needed would increase carbon dioxide emissions by an estimated 8.3 million tons per year. In addition, conversion from once-through cooling systems to cooling towers at affected plants would result in increased evaporation of about 2.7 million gallons of water per minute nationwide.

Veil, J.A.

1994-04-01T23:59:59.000Z

330

An integrated solar thermal power system using intercooled gas turbine and Kalina cycle  

Science Journals Connector (OSTI)

A new solar tower thermal power system integrating the intercooled gas turbine top cycle and the Kalina bottoming cycle is proposed in the present paper. The thermodynamic performance of the proposed system is investigated, and the irreversibility of energy conversion is disclosed using the energyutilization diagram method. On the top cycle of the proposed system, the compressed air after being intercooled is heated at 1000C or higher at the solar tower receiver and is used to drive the gas turbine to generate power. The ammoniawater mixture as the working substance of the bottom cycle recovers the waste heat from the gas turbine to generate power. A concise analytical formula of solar-to-electric efficiency of the proposed system is developed. As a result, the peak solar-to-electric efficiency of the proposed system is 27.5% at a gas turbine inlet temperature of 1000C under the designed solar direct normal irradiance of 800W/m2. Compared with a conventional solar power tower plant, the proposed integrated system conserves approximately 69% of consumed water. The results obtained in the current study provide an approach to improve solar-to-electric efficiency and offer a potential to conserve water for solar thermal power plants in arid area.

Shuo Peng; Hui Hong; Hongguang Jin; Zhifeng Wang

2012-01-01T23:59:59.000Z

331

In-Situ Preparation and thermal shock resistance of mullite-cordierite heat tube material for solar thermal power  

Science Journals Connector (OSTI)

In order to improve the thermal shock resistance of solar thermal heat transfer tube material, the mullite-cordierite composite ceramic as solar thermal heat transfer tube material were fabricated by...?-Al2O3......

Xiaohong Xu ???; Xionghua Ma; Jianfeng Wu

2013-06-01T23:59:59.000Z

332

Development of encapsulated lithium hydride thermal energy storage for space power systems  

SciTech Connect (OSTI)

Inclusion of thermal energy storage in a pulsed space power supply will reduce the mass of the heat rejection system. In this mode, waste heat generated during the brief high-power burst operation is placed in the thermal store; later, the heat in the store is dissipated to space via the radiator over the much longer nonoperational period of the orbit. Thus, the radiator required is of significantly smaller capacity. Scoping analysis indicates that use of lithium hydride as the thermal storage medium results in system mass reduction benefits for burst periods as long as 800 s. A candidate design for the thermal energy storage component utilizes lithium hydride encapsulated in either 304L stainless steel or molybdenum in a packed-bed configuration with a lithium or sodium-potassium (NaK) heat transport fluid. Key issues associated with the system design include phase-change induced stresses in the shell, lithium hydride and shell compatibility, lithium hydride dissociation and hydrogen loss from the system, void presence and movement associated with the melt-freeze process, and heat transfer limitations on obtaining the desired energy storage density. 58 refs., 40 figs., 11 tabs.

Morris, D.G.; Foote, J.P.; Olszewski, M.

1987-12-01T23:59:59.000Z

333

Tax Revenue and Job Benefits from Solar Thermal Power Plants in Nye County  

SciTech Connect (OSTI)

The objective of this report is to establish a common understanding of the financial benefits that the County will receive as solar thermal power plants are developed in Amargosa Valley. Portions of the tax data and job estimates in the report were provided by developers Solar Millennium and Abengoa Solar in support of the effort. It is hoped that the resulting presented data will be accepted as factual reference points for the ensuing debates and financial decisions concerning these development projects.

Kuver, Walt

2009-11-10T23:59:59.000Z

334

National Renewable Energy Laboratory Report Identifies Research Needed to Address Power Market Design Challenges  

Broader source: Energy.gov [DOE]

A new report by DOE's National Renewable Energy Laboratory identifies research opportunities to improve the ways in which wholesale electricity markets are designed, with a focus on how the characteristics of variable generation from wind and solar power can affect those markets.

335

Pathway from the National Ignition Facility to an operational LIFE power plant  

E-Print Network [OSTI]

Lawrence Livermore National Laboratory #12;#12;Or, less than a gram of fuel per person per year next step, after NIF, is construction of a full-scale power plant NIF-1111-23807.ppt 4 #12 delivery #12;7NIF-1111-23807.ppt #12;Principle of LIFE plant operation Heat transfer DT fuel cycle

336

Development of Solid Particle Thermal Energy Storage for Concentrating Solar Power Plants that Use Fluidized Bed Technology  

Science Journals Connector (OSTI)

Abstract The National Renewable Energy Laboratory is developing a thermal energy storage (TES) system that uses solid particles as the storage medium for a concentrating solar power plant. This paper focuses on the particle-TES performance in terms of three efficiency metrics: first-law efficiency, second-law efficiency, and storage effectiveness. The paper presents the derivation of the efficiency expression and their application in assessing the particle-TES performance and design. The particle-TES system uses low-cost stable materials that withstand high temperature at a fraction of the cost of the salt and metal containment vessels for high-temperature TES. Cost analysis indicates that particle TES costs less than $10/kWhth, which is less than half the cost of the current molten-salt-based TES and just a fraction of liquid heat transfer fluid storage at a similar high temperature of >700C, due to its low cost of storage medium and containment. The fluidized-bed TES can hold hot particles of > 800C with >95% exergetic efficiency, storage effectiveness, and thermal efficiency.

Z. Ma; G.C. Glatzmaier; M. Mehos

2014-01-01T23:59:59.000Z

337

Thermal Analysis of Step 2 GPHS for Next Generation Radioisotope Power Source Missions  

Science Journals Connector (OSTI)

The Step 2 General Purpose Heat Source (GPHS) is a slightly larger and more robust version of the heritage GPHS modules flown on previous Radioisotope Thermoelectric Generator (RTG) missions like Galileo Ulysses and Cassini. The Step 2 GPHS is to be used in future small radioisotope power sources such as the Stirling Radioisotope Generator (SRG110) and the Multi?Mission Radioisotope Thermoelectric Generator (MMRTG). New features include an additional central web of Fine Weave Pierced Fabric (FWPF) graphite in the aeroshell between the two Graphite Impact Shells (GIS) to improve accidental reentry and impact survivability and an additional 0.1?inch of thickness to the aeroshell broad faces to improve ablation protection. This paper details the creation of the thermal model using Thermal Desktop and AutoCAD interfaces and provides comparisons of the model to results of previous thermal analysis models of the heritage GPHS. The results of the analysis show an anticipated decrease in total thermal gradient from the aeroshell to the iridium clads compared to the heritage results. In addition the Step 2 thermal model is investigated under typical SRG110 boundary conditions with cover gas and gravity environments included where applicable to provide preliminary guidance for design of the generator. Results show that the temperatures of the components inside the GPHS remain within accepted design limits during all envisioned mission phases.

David R. Pantano; Dennis H. Hill

2005-01-01T23:59:59.000Z

338

Preliminary Thermal Modeling of HI-STORM 100 Storage Modules at Diablo Canyon Power Plant ISFSI  

SciTech Connect (OSTI)

Thermal analysis is being undertaken at Pacific Northwest National Laboratory (PNNL) in support of inspections of selected storage modules at various locations around the United States, as part of the Used Fuel Disposition Campaign of the U.S. Department of Energy, Office of Nuclear Energy (DOE-NE) Fuel Cycle Research and Development. This report documents pre-inspection predictions of temperatures for two modules at the Diablo Canyon Power Plant ISFSI identified as candidates for inspection. These are HI-STORM 100 modules of a site-specific design for storing PWR 17x17 fuel in MPC-32 canisters. The temperature predictions reported in this document were obtained with detailed COBRA-SFS models of these storage systems, with the following boundary conditions and assumptions. storage module overpack configuration based on FSAR documentation of HI-STORM100S-218, Version B; due to unavailability of site-specific design data for Diablo Canyon ISFSI modules Individual assembly and total decay heat loadings for each canister, based on at-loading values provided by PG&E, aged to time of inspection using ORIGEN modeling o Special Note: there is an inherent conservatism of unquantified magnitude informally estimated as up to approximately 20% -- in the utility-supplied values for at-loading assembly decay heat values Axial decay heat distributions based on a bounding generic profile for PWR fuel. Axial location of beginning of fuel assumed same as WE 17x17 OFA fuel, due to unavailability of specific data for WE17x17 STD and WE 17x17 Vantage 5 fuel designs Ambient conditions of still air at 50F (10C) assumed for base-case evaluations o Wind conditions at the Diablo Canyon site are unquantified, due to unavailability of site meteorological data o additional still-air evaluations performed at 70F (21C), 60F (16C), and 40F (4C), to cover a range of possible conditions at the time of the inspection. (Calculations were also performed at 80F (27C), for comparison with design basis assumptions.) All calculations are for steady-state conditions, on the assumption that the surfaces of the module that are accessible for temperature measurements during the inspection will tend to follow ambient temperature changes relatively closely. Comparisons to the results of the inspections, and post-inspection evaluations of temperature measurements obtained in the specific modules, will be documented in a separate follow-on report, to be issued in a timely manner after the inspection has been performed.

Cuta, Judith M.; Adkins, Harold E.

2014-04-17T23:59:59.000Z

339

Maximum wind energy contribution in autonomous electrical grids based on thermal power stations  

Science Journals Connector (OSTI)

Greek islands cover their continuously increasing electricity demand on the basis of small autonomous thermal power stations. This electrification solution is related with increased operational cost and power insufficiency, especially during summer. On the other hand, the stochastic behaviour of the wind and the important fluctuations of daily and seasonal electricity load in almost all Greek islands pose a substantial penetration limit for the exploitation of the high wind potential of the area. In this context, the present study is concentrated on developing an integrated methodology which can estimate the maximum wind energy contribution to the existing autonomous electrical grids, using the appropriate stochastic analysis. For this purpose one takes into account the electrical demand probability density profile of every island under investigation as well as the operational characteristics of the corresponding thermal power stations. Special attention is paid in order to protect the existing internal combustion engines from unsafe operation below their technical minima as well as to preserve the local system active power reserve and the corresponding dynamic stability. In order to increase the reliability of the results obtained, one may use extensive information for several years. Finally, the proposed study is integrated with an appropriate parametrical analysis, investigating the impact of the main parameters variation on the expected maximum wind energy contribution.

J.K. Kaldellis

2007-01-01T23:59:59.000Z

340

Evaluation of distributed building thermal energy storage in conjunction with wind and solar electric power generation  

Science Journals Connector (OSTI)

Abstract Energy storage is often seen as necessary for the electric utility systems with large amounts of solar or wind power generation to compensate for the inability to schedule these facilities to match power demand. This study looks at the potential to use building thermal energy storage as a load shifting technology rather than traditional electric energy storage. Analyses are conducted using hourly electric load, temperature, wind speed, and solar radiation data for a 5-state central U.S. region in conjunction with simple computer simulations and economic models to evaluate the economic benefit of distributed building thermal energy storage (TES). The value of the TES is investigated as wind and solar power generation penetration increases. In addition, building side and smart grid enabled utility side storage management strategies are explored and compared. For a relative point of comparison, batteries are simulated and compared to TES. It is found that cooling TES value remains approximately constant as wind penetration increases, but generally decreases with increasing solar penetration. It is also clearly shown that the storage management strategy is vitally important to the economic value of TES; utility side operating methods perform with at least 75% greater value as compared to building side management strategies. In addition, TES compares fairly well against batteries, obtaining nearly 90% of the battery value in the base case; this result is significant considering TES can only impact building thermal loads, whereas batteries can impact any electrical load. Surprisingly, the value of energy storage does not increase substantially with increased wind and solar penetration and in some cases it decreases. This result is true for both TES and batteries and suggests that the tie between load shifting energy storage and renewable electric power generation may not be nearly as strong as typically thought.

Byron W. Jones; Robert Powell

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" from the National Library of EnergyBeta (NLEBeta).
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341

Numerical simulation of the thermal conditions in a sea bay water area used for water supply to nuclear power plants  

SciTech Connect (OSTI)

Consideration is given to the numerical simulation of the thermal conditions in sea water areas used for both water supply to and dissipation of low-grade heat from a nuclear power plant on the shore of a sea bay.

Sokolov, A. S. [JSC 'B. E. Vedeneev All-Russia Research Institute of Hydraulic Engineering (VNIIG)' (Russian Federation)] [JSC 'B. E. Vedeneev All-Russia Research Institute of Hydraulic Engineering (VNIIG)' (Russian Federation)

2013-07-15T23:59:59.000Z

342

Environmental assessment of coal ash ponds of thermal power plants in the south of the Russian Far East  

Science Journals Connector (OSTI)

The results of environmental assessment of ash ponds of thermal power plants in Vladivostok and Khabarovsk are given. High radioactivity of coal in the Russian Far East is responsible ... accumulation of radionuc...

V. P. Zvereva; L. T. Krupskaya

2013-12-01T23:59:59.000Z

343

Performances of a thermal-storage module in a solar-energy power production perspective: A numerical assessment  

Science Journals Connector (OSTI)

A theoretical model has been developed to describe the cyclic behaviour of a latent-heat thermal-storage module. Attention has been focused on power production applications, where stability of the heat supply ...

C. Bellecci; M. Conti

344

Dense, low-power sensor network for three-dimensional thermal characterization of large-scale atria spaces  

E-Print Network [OSTI]

We describe the design and implementation of a dense, low-power wireless sensor network for fine-grained three-dimensional thermal characterization of a large open indoor space. To better understand the airflow dynamics ...

Gong, Nan-Wei

345

Monitoring Thermal Fatigue Damage In Nuclear Power Plant Materials Using Acoustic Emission  

SciTech Connect (OSTI)

Proactive aging management of nuclear power plant passive components requires technologies to enable monitoring and accurate quantification of material condition at early stages of degradation (i.e., pre-macrocrack). Acoustic emission (AE) is well-suited to continuous monitoring of component degradation and is proposed as a method to monitor degradation during accelerated thermal fatigue tests. A key consideration is the ability to separate degradation responses from external sources such as water spray induced during thermal fatigue testing. Water spray provides a significant background of acoustic signals, which can overwhelm AE signals caused by degradation. Analysis of AE signal frequency and energy is proposed in this work as a means for separating degradation signals from background sources. Encouraging results were obtained by applying both frequency and energy filters to preliminary data. The analysis of signals filtered using frequency and energy provides signatures exhibiting several characteristics that are consistent with degradation accumulation in materials. Future work is planned to enable verification of the efficacy of AE for thermal fatigue crack initiation detection. While the emphasis has been placed on the use of AE for crack initiation detection during accelerated aging tests, this work also has implications with respect to the use of AE as a primary tool for early degradation monitoring in nuclear power plant materials. The development of NDE tools for characterization of aging in materials can also benefit from the use of a technology such as AE which can continuously monitor and detect crack initiation during accelerated aging tests.

Meyer, Ryan M.; Ramuhalli, Pradeep; Watson, Bruce E.; Pitman, Stan G.; Roosendaal, Timothy J.; Bond, Leonard J.

2012-04-26T23:59:59.000Z

346

Thermal model design and analysis of the high-power LED automotive headlight cooling device  

Science Journals Connector (OSTI)

Abstract A study of the thermal performance of conventional plate-fin heat sinks and novel cooling device integrated with heat conductive plates (HCPS) for the application in high-power LED headlight was presented. The thermal resistance network model was built to analyze the factors which have impacts on the junction temperature. The analyses were based on the experiment combined with computations using the CFD software FloEFD. The prediction results were validated with the experimental one. Details of the heat transfer performance, particularly the temperature distribution of the LED module and lampshell, as well as the effect of HCPS length on the system thermal resistance and the average heat transfer coefficient were obtained. Since it could make some distance between the heat sink and the lampshell, the average surface convective heat transfer coefficient had been improved and the overall external thermal resistance was reduced effectively. The effects of the simulated ambient temperature, chip package depth, inclination angles and fan rotate speeds on the junction temperature were also examined. Results indicated that the airflow was weakened as the chip package depth increased. In addition, with the presence of the enforced velocity airflow, the junction temperature decreased gradually from 116.61C to 78.05C.

Xin-Jie Zhao; Yi-Xi Cai; Jing Wang; Xiao-Hua Li; Chun Zhang

2015-01-01T23:59:59.000Z

347

Performance analysis of an absorption power cycle for ocean thermal energy conversion  

Science Journals Connector (OSTI)

Abstract An absorption power cycle with two ejectors is proposed for ocean thermal energy conversion. The ammoniawater is used as the working fluid. The ejectors are driven by vapor and solution from the sub-generator. Based on the first and second law, the mathematical model for this cycle is developed and theoretical analysis is conducted to evaluate the effects of thermodynamic parameters on the performance of this cycle. Results show that the absorption temperature is increased by 2.06.5C by employing the two-stage ejector sub-cycle, which indicates that this proposed cycle can be driven with a lower temperature difference. Further, the thermal efficiency, net thermal efficiency and exergy efficiency of this cycle can reach to 4.17%, 3.10% and 39.92% respectively. Besides, the generation pressure, the heating source temperature, the solution concentration, and the expansion ratio, as well as the entrainment ratio of the first stage ejector have significant effects on the absorption temperature, the thermal efficiency, the exergy efficiency and the exergy loss of this cycle. In addition, 49.80% of exergy loss in this proposed cycle occurs in the generators and reheater, followed by the ejectors of 36.12%.

Han Yuan; Ning Mei; Peilin Zhou

2014-01-01T23:59:59.000Z

348

Analysis of combined cooling, heating, and power systems under a compromised electricthermal load strategy  

Science Journals Connector (OSTI)

Abstract Following the electric load (FE) and following the thermal load (FT) strategies both have advantages and disadvantages for combined cooling, heating and power (CCHP) systems. In this paper, the performance of different strategies is evaluated under operation cost (OC), carbon dioxide emission (CDE) and exergy efficiency (EE). Analysis of different loads in one hour is conducted under the assumption that the additional electricity is not allowed to be sold back to the grid. The results show that FE produces less OC, less CDE, and FT produces higher EE when the electric load is larger. However, FE produces less OC, less CDE and higher EE when the thermal load is larger. Based on a hybrid electricthermal load (HET) strategy, compromised electricthermal (CET) strategies are innovatively proposed using the efficacy coefficient method. Additional, the CCHP system of a hotel in Tianjin is analyzed for all of the strategies. The results for an entire year indicate the first CET strategy is the optimal one when dealing with OC, CDE and EE. And the second CET is the optimal one when dealing with OC and EE. Moreover, the laws are strictly correct for different buildings in qualitative terms.

Gang Han; Shijun You; Tianzhen Ye; Peng Sun; Huan Zhang

2014-01-01T23:59:59.000Z

349

National Lab Helping to Train Operators for Next Generation of Power Plants  

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

Lab Helping to Train Operators for Next Generation of Lab Helping to Train Operators for Next Generation of Power Plants National Lab Helping to Train Operators for Next Generation of Power Plants January 25, 2013 - 11:10am Addthis AVESTAR provides high-quality, hands-on, simulator-based workforce training delivered by an experienced team of power industry training professionals for West Virginia students. | Photo courtesy of the Office of Fossil Energy. AVESTAR provides high-quality, hands-on, simulator-based workforce training delivered by an experienced team of power industry training professionals for West Virginia students. | Photo courtesy of the Office of Fossil Energy. Gayland Barksdale Technical Writer, Office of Fossil Energy What Does AVESTAR Provide? Advanced dynamic simulation, control and virtual plant technologies

350

National Bio Energy Co Ltd formerly Guoneng Biomass Power Ltd | Open Energy  

Open Energy Info (EERE)

Bio Energy Co Ltd formerly Guoneng Biomass Power Ltd Bio Energy Co Ltd formerly Guoneng Biomass Power Ltd Jump to: navigation, search Name National Bio Energy Co Ltd (formerly Guoneng Biomass Power Ltd.) Place Beijing, Beijing Municipality, China Zip 100005 Sector Biomass Product Invest in, build and run biomass power plants. Coordinates 39.90601°, 116.387909° 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":39.90601,"lon":116.387909,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

351

Unique Solar Thermal Laboratory Gets an Upgrade | Department of Energy  

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

Unique Solar Thermal Laboratory Gets an Upgrade Unique Solar Thermal Laboratory Gets an Upgrade Unique Solar Thermal Laboratory Gets an Upgrade September 10, 2010 - 2:54pm Addthis This “power tower” is part of the National Solar Thermal Test Facility in Albuquerque, which is getting upgrades through Recovery Act funding. | Photo Courtesy of Sandia National Laboratories This "power tower" is part of the National Solar Thermal Test Facility in Albuquerque, which is getting upgrades through Recovery Act funding. | Photo Courtesy of Sandia National Laboratories Lorelei Laird Writer, Energy Empowers The National Solar Thermal Test Facility at Sandia National Laboratories is unique - and in demand. The Facility has been instrumental in NASA tests, national defense programs and concentrated solar technology development.

352

Multi-Criteria Decision Analysis of Concentrated Solar Power with Thermal Energy Storage and Dry Cooling  

Science Journals Connector (OSTI)

For comparison, the ratio of life cycle GHG emissions to LCOE for pulverized coal (PC), integrated gasification combined cycle (IGCC), natural gas combined cycle (NGCC), PC with carbon capture and storage (CCS), IGCC with CCS, and NGCC with CCS are 31, 19, 12, 3, 2, and 2 kgCO2eq/$, respectively (Supporting Information Table S4, p S10). ... Poullikkas, A.Economic analysis of power generation from parabolic trough solar thermal plants for the Mediterranean regionA case study for the island of Cyprus Renewable Sustainable Energy Rev. 2009, 13 ( 9) 2474 2484 ...

Sharon J. W. Klein

2013-11-18T23:59:59.000Z

353

Simulating the Value of Concentrating Solar Power with Thermal Energy Storage in a Production Cost Model  

SciTech Connect (OSTI)

Concentrating solar power (CSP) deployed with thermal energy storage (TES) provides a dispatchable source of renewable energy. The value of CSP with TES, as with other potential generation resources, needs to be established using traditional utility planning tools. Production cost models, which simulate the operation of grid, are often used to estimate the operational value of different generation mixes. CSP with TES has historically had limited analysis in commercial production simulations. This document describes the implementation of CSP with TES in a commercial production cost model. It also describes the simulation of grid operations with CSP in a test system consisting of two balancing areas located primarily in Colorado.

Denholm, P.; Hummon, M.

2012-11-01T23:59:59.000Z

354

Kinematic Stirling engine as an energy conversion subsystem for paraboloidal dish solar thermal power plants  

SciTech Connect (OSTI)

The potential of a suitably designed and economically manufactured Stirling engine as the energy conversion subsystem of a paraboloidal dish-Stirling solar thermal power module has been estimated. Results obtained by elementary cycle analyses have been shown to match quite well the performance characteristics of an advanced kinematic Stirling engine, the United Stirling P-40, as established by current prototypes of the engine and by a more sophisticated analytic model of its advanced derivative. In addition to performance, brief consideration has been given to other Stirling engine criteria such as durability, reliability, and serviceability. Production costs have not been considered here.

Bowyer, J.M.

1984-04-15T23:59:59.000Z

355

Thermal Conductivity Enhancement of High Temperature Phase Change Materials for Concentrating Solar Power Plant Applications  

E-Print Network [OSTI]

Proceedings on thermal energy storage and energy conversion;polymer microcomposites for thermal energy storage. SAE SocLow temperature thermal energy storage: a state of the art

Roshandell, Melina

2013-01-01T23:59:59.000Z

356

Security constrained generation scheduling for grids incorporating wind, photovoltaic and thermal power  

Science Journals Connector (OSTI)

Abstract In this paper, security constrained generation scheduling (SCGS) problem for a grid incorporating thermal, wind and photovoltaic (PV) units is formulated. The formulation takes into account the stochastic nature of both wind and PV power output and imbalance charges due to mismatch between the actual and scheduled wind and PV power outputs. A hybrid technique in which the basic elements are a genetic algorithm (GA) with artificial neural network (ANN) and a priority list (PL) is used to minimize the total operating costs while satisfying all operational constraints considering both conventional and renewable energy generators. Numerical results are reported and discussed based on the simulation performed on the IEEE 24-bus reliability test system. The results demonstrate the efficiency of the proposed approach to reduce the total production cost for real time operation. Moreover, the results verified that the proposed approach can be applied to different problem dimensions and can score more favorably compared with analytical techniques.

Azza A. ElDesouky

2014-01-01T23:59:59.000Z

357

An In-Core Power Deposition and Fuel Thermal Environmental Monitor for Long-Lived Reactor Cores  

SciTech Connect (OSTI)

The primary objective of this program is to develop the Constant Temperature Power Sensor (CTPS) as in-core instrumentation that will provide a detailed map of local nuclear power deposition and coolant thermal-hydraulic conditions during the entire life of the core.

Don W. Miller

2004-09-28T23:59:59.000Z

358

Investigation of power battery thermal management by using mini-channel cold plate  

Science Journals Connector (OSTI)

Abstract In order to guarantee the safety and extend the cycle life of Li-ion power batteries within electric vehicles, a mini-channel cold plate-based battery thermal management system is designed to cool a rectangular Li-ion battery. A three-dimensional thermal model of the cooling system was established and the effects of number of channels, flow direction, inlet mass flow rate and ambient temperature on temperature rise and distribution of the battery during the discharge process were investigated. The results suggest that the maximum temperature of the battery decreases with increases in the number of channels and inlet mass flow rate. The effect of flow direction on cooling performance was smaller after mass flow rate increased. The cooling performance improved with the increase of inlet mass flow rate but the increasing trend became smaller, and the mass flow rate as 5נ10?4kgs?1 was optimal. The simulation results will be useful for the design of mini-channel cold plate-based battery thermal management system.

Yutao Huo; Zhonghao Rao; Xinjian Liu; Jiateng Zhao

2015-01-01T23:59:59.000Z

359

Effect of nano-ZrO2 on microstructure and thermal shock behaviour of Al2O3/SiC composite ceramics used in solar thermal power  

Science Journals Connector (OSTI)

The Al2O3-ZrO2(3Y)-SiC composite ceramics used in solar thermal power were prepared by micrometric Al2O3, nano-ZrO2 and SiC powders under the condition of pressureless sintering. The bulk density and bending stre...

Xiaohong Xu ???; Guohao Jiao; Jianfeng Wu

2011-04-01T23:59:59.000Z

360

INTRODUCTION With the Jawaharlal Nehru National Solar Mission, there is a thrust  

E-Print Network [OSTI]

of the overall system. The solar thermal power plant simulator will enable one to simulate different scenarios is setting up a National Solar Thermal Power Testing, Simulation and Research Facility with the financial thermal power plant, with a gross capacity of 1 MWe, has been designed, built and is being commissioned

Narayanan, H.

Note: This page contains sample records for the topic "national thermal power" 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

Survey of strong motion earthquake effects on thermal power plants in California with emphasis on piping systems. Volume 2, Appendices  

SciTech Connect (OSTI)

Volume 2 of the ``Survey of Strong Motion Earthquake Effects on Thermal Power Plants in California with Emphasis on Piping Systems`` contains Appendices which detail the detail design and seismic response of several power plants subjected to strong motion earthquakes. The particular plants considered include the Ormond Beach, Long Beach and Seal Beach, Burbank, El Centro, Glendale, Humboldt Bay, Kem Valley, Pasadena and Valley power plants. Included is a typical power plant piping specification and photographs of typical power plant piping specification and photographs of typical piping and support installations for the plants surveyed. Detailed piping support spacing data are also included.

Stevenson, J.D. [Stevenson and Associates, Cleveland, OH (United States)

1995-11-01T23:59:59.000Z

362

Liquid Metal as a Heat Transport Fluid for Thermal Solar Power Applications  

Science Journals Connector (OSTI)

Abstract In order to increase the thermal efficiency and produce process heat for hydrogen production, the operating temperature of the heat transfer fluid in thermal solar plants needs to increase. In addition reaching 900C would also increase the heat storage density and the efficiency of the thermodynamic cycle by using a combined cycle for electricity production. The benefits of hydrogen (e.g., for fuel cells) and a more efficient thermodynamic cycle would allow a plant to have a higher energy output per square acre of land use, thereby increasing its economic competiveness. Today, solar thermal plants do not operate at these high temperatures due to the fact that conventional heat transport fluids begin to disintegrate around 600C [1,2]. For non-solar applications, low melting-temperature metals, such as wood's metal and lead- bismuth eutectic alloy, have been examined as heat-transport media, because of the large temperature ranges over which they remain liquid. Lead-bismuth eutectic alloy (LBE; 45% Pb, 55% Bi) melts at 125C and does not boil until 1670C, making it an ideal heat-transfer medium for application in thermal solar power [3]. The main obstacle to using LBE is finding structural materials that can withstand the harsh corrosion environments at high temperatures. In this work the key issues of materials exposed to liquid metal are described while initial data on carious steels tested in liquid metal are provided. While corrosion is a significant issue in this environment, mechanical failure of steels in liquid metal are discussed as well.

D. Frazer; E. Stergar; C. Cionea; P. Hosemann

2014-01-01T23:59:59.000Z

363

Technical and economical system comparison of photovoltaic and concentrating solar thermal power systems depending on annual global irradiation  

Science Journals Connector (OSTI)

Concentrating solar thermal power and photovoltaics are two major technologies for converting sunlight to electricity. Variations of the annual solar irradiation depending on the site influence their annual efficiency, specific output and electricity generation cost. Detailed technical and economical analyses performed with computer simulations point out differences of solar thermal parabolic trough power plants, non-tracked and two-axis-tracked PV systems. Therefore, 61 sites in Europe and North Africa covering a global annual irradiation range from 923 to 2438 kWh/m2a have been examined. Simulation results are usable irradiation by the systems, specific annual system output and levelled electricity cost. Cost assumptions are made for today's cost and expected cost in 10 years considering different progress ratios. This will lead to a cost reduction by 50% for PV systems and by 40% for solar thermal power plants. The simulation results show where are optimal regions for installing solar thermal trough and tracked PV systems in comparison to non-tracked PV. For low irradiation values the annual output of solar thermal systems is much lower than of PV systems. On the other hand, for high irradiations solar thermal systems provide the best-cost solution even when considering higher cost reduction factors for PV in the next decade. Electricity generation cost much below 10 Eurocents per kWh for solar thermal systems and about 12 Eurocents/kWh for PV can be expected in 10 years in North Africa.

Volker Quaschning

2004-01-01T23:59:59.000Z

364

Evaluation of annual efficiencies of high temperature central receiver concentrated solar power plants with thermal energy storage.  

SciTech Connect (OSTI)

The current study has examined four cases of a central receiver concentrated solar power plant with thermal energy storage using the DELSOL and SOLERGY computer codes. The current state-of-the-art base case was compared with a theoretical high temperature case which was based on the scaling of some input parameters and the estimation of other parameters based on performance targets from the Department of Energy SunShot Initiative. This comparison was done for both current and high temperature cases in two configurations: a surround field with an external cylindrical receiver and a north field with a single cavity receiver. There is a fairly dramatic difference between the design point and annual average performance, especially in the solar field and receiver subsystems, and also in energy losses due to the thermal energy storage being full to capacity. Additionally, there are relatively small differences (<2%) in annual average efficiencies between the Base and High Temperature cases, despite an increase in thermal to electric conversion efficiency of over 8%. This is due the increased thermal losses at higher temperature and operational losses due to subsystem start-up and shut-down. Thermal energy storage can mitigate some of these losses by utilizing larger thermal energy storage to ensure that the electric power production system does not need to stop and re-start as often, but solar energy is inherently transient. Economic and cost considerations were not considered here, but will have a significant impact on solar thermal electric power production strategy and sizing.

Ehrhart, Brian David; Gill, David Dennis

2013-07-01T23:59:59.000Z

365

Constraining the intra-cluster pressure profile from the thermal SZ power spectrum  

E-Print Network [OSTI]

The angular power spectrum of the thermal Sunyaev-Zel'dovich (tSZ) effect is highly sensitive to cosmological parameters such as sigma8 and OmegaM, but its use as a precision cosmological probe is hindered by the astrophysical uncertainties in modeling the gas pressure profile in galaxy groups and clusters. In this paper we assume that the relevant cosmological parameters are accurately known, and explore the ability of current and future tSZ power spectrum measurements to constrain the intra-cluster gas pressure or the evolution of the gas mass fraction, f_gas. We use the CMB bandpower measurements from the South Pole Telescope and a Bayesian MCMC method to quantify deviations from the standard, universal gas pressure model. We explore analytical model extensions that bring the predictions for the tSZ power in agreement with experimental data. We find that a steeper pressure profile in the cluster outskirts or an evolving f_gas have mild to severe conflicts with experimental data or simulations. Varying more...

Ramos-Ceja, M E; Pacaud, F; Bertoldi, F

2014-01-01T23:59:59.000Z

366

CATEGORICAL EXCLUSION TO INSTALL EMSL SUPER-COMPUTER POWER INFRASTRUCTURE, PACIFIC NORTHWEST NATIONAL  

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

TO INSTALL EMSL SUPER-COMPUTER TO INSTALL EMSL SUPER-COMPUTER POWER INFRASTRUCTURE, PACIFIC NORTHWEST NATIONAL LABORATORY, RICHLAND, WASHINGTON Proposed Action: The U.S. Department of Energy (DOE) Pacific Northwest Site Office (PNSO) proposes to provide enhanced electrical service to the Environmental Molecular Sciences Laboratory (EMSL) to provide an increased power capacity for future facility computational developments. Location of Action: The electrical service would be installed underground via excavation in the lawn and gravel area between EMSL, room 1145, west toward the northeast comer of the Biological Sciences Facility (BSF), in Richland, Washington. The excavation would also extend north-south for about 450 feet along the property line between EMSL and BSF. Please refer to Figure 1.

367

Molten Salt Nanomaterials for Thermal Energy Storage and Concentrated Solar Power Applications  

E-Print Network [OSTI]

thermal efficiency from 54 percent to 63 percent. However, very few thermal storage materials are compatible for these high temperatures. Molten salts are thermally stable up to 600 degrees C and beyond. Using the molten salts as the TES materials...

Shin, Donghyun

2012-10-19T23:59:59.000Z

368

Physical Properties of Solid Particle Thermal Energy Storage Media for Concentrating Solar Power Applications  

Science Journals Connector (OSTI)

Abstract Solid ceramic particles have proven to be an effective heat transfer and thermal storage media for central receiver power production for a heat input temperature up to 1000C. In the directly illuminated solid particle receiver, a cascade of ?0.1-1mm diameter particles is directly heated within a receiver cavity by concentrated solar energy. The efficiency of this approach, with respect to the energy balance on the receiver itself, is dependent on the physical properties of the particles. In this work, the radiative properties, solar weighted absorptance and thermal emittance, have been measured for several commercially available particle candidates both in the as-received state and after thermal exposure to simulate extended operation at elevated temperature in air between 700?C-1000?C. Heating the particles is shown to significantly reduce the solar weighted absorptance of as-received particles within 24hours of exposure to air at 1000C, while heating at 700C in air has relatively little effect. In the as-received state, solar weighted absorptance can be as high as 93%, dropping to 84% after 192hours at 1000?C. Particle stability is better at 700?C, and the solar absorptance remains above 92% after 192hours of exposure. Analysis using x-ray diffraction (XRD) shows evidence of multiple chemical transformations in the sintered bauxite particle materials, which contain oxides of aluminum, silicon, titanium, and iron, following heating in air. However, the XRD spectra show only small differences between as-received and heat treated particles leaving open the possibility that the observed change in radiative properties results from a change in oxidation state without a concomitant phase change. Regardless of the specific degradation mechanism, t he solar weighted absorptance of the particles can be increased beyond the as-received condition by chemically reducing the particles in forming gas (5%H2 in N2 or Ar) above 700C, providing a possible means of periodically rejuvenating degraded particles in situ.

N. Siegel; M. Gross; C. Ho; T. Phan; J. Yuan

2014-01-01T23:59:59.000Z

369

Latent Heat Based High Temperature Solar Thermal Energy Storage for Power Generation  

Science Journals Connector (OSTI)

Abstract The design of a phase change material based high temperature solar thermal energy storage device is presented. Said unit will be used as an energy reserve for a 1 kWe domestic CCHP system using a Stirling engine to produce electric power. The thermal energy storage is conducted by means of the exploitation of the latent heat of fusion of the material contained inside the tank. This method was chosen because a great energy density is obtained and, at the same time, it is possible to extract the stored energy with very small variations on the temperature, which is a favorable feature for its intended purpose. The selection of the phase change material is discussed and the design of the different components of the proposed storage model is described. It is analyzed, as well, the insulating solution applied that minimizes heat losses. Finally, a comparison between experimental results of the tests performed on the first built to scale prototype and the data obtained from computer simulations is shown.

Bruno Crdenas; Noel Len

2014-01-01T23:59:59.000Z

370

Contamination of Cluster Radio Sources in the Measurement of the Thermal Sunyaev-Zel'dovich Angular Power Spectrum  

E-Print Network [OSTI]

We present a quantitative estimate of the confusion of cluster radio halos and galaxies in the measurement of the angular power spectrum of the thermal Sunyaev-Zel'dovich (SZ) effect. To achieve the goal, we use a purely analytic approach to both radio sources and dark matter of clusters by incorporating empirical models and observational facts together with some theoretical considerations. It is shown that the correction of cluster radio halos and galaxies to the measurement of the thermal SZ angular power spectrum is no more than 20% at $l>2000$ for observing frequencies $\

Wei Zhou; Xiang-Ping Wu

2003-09-26T23:59:59.000Z

371

Two-tank indirect thermal storage designs for solar parabolic trough power plants.  

E-Print Network [OSTI]

??The performance of a solar thermal parabolic trough plant with thermal storage is dependent upon the arrangement of the heat exchangers that ultimately transfer energy (more)

Kopp, Joseph E.

2009-01-01T23:59:59.000Z

372

Control of thermal emittance of stainless steel using sputtered tungsten thin films for solar thermal power applications  

Science Journals Connector (OSTI)

Abstract Low thermal emittance is the key factor of a solar collector. For high temperature solar thermal applications, low emittance is an important parameter, because the thermal radiative losses of the absorbers increase proportionally by T4. Our primary motivation for carrying out this work has been to lower the thermal emittance of stainless steel substrate (intrinsic emittance=0.120.13) by coating a thin film of high infrared (IR) reflecting tungsten (W). Tungsten thin films were deposited on stainless steel substrates using a glow discharge direct current magnetron sputtering system. Emittance as low as 0.03 was obtained by varying the thickness of W coating on stainless steel substrate. The influences of structural, morphological and electrical properties of the W coating on its emittance values are studied. The effect of substrate roughness on the emittance of W coating is also examined. Thermal stability of the W coatings is studied in both vacuum and air. In order to demonstrate the effect of W interlayer, solar selective coating of AlTiN/AlTiON/AlTiO tandem absorber was deposited on W coated stainless steel substrates, which exhibited absorptance of 0.955 and emittance of 0.08 with a thermal stability up to 600C in vacuum.

K.P. Sibin; Siju John; Harish C. Barshilia

2015-01-01T23:59:59.000Z

373

Cogenerating Photovoltaic and Thermal Solar Collector  

E-Print Network [OSTI]

cell, 25% max ­ Steam power plant, 50% max · Data Centers in the U.S. ­ Demand increases as internet.2% of the nations electricity consumption · Load equivalent to 5 1000 MW power plants · Over 2.2 billion dollars applications #12;First Prototype Spring 2008 #12;#12;Experimental Results · Thermal power generated ­ 1.4 KW

Su, Xiao

374

Modelling Concentrating Solar Power with Thermal Energy Storage for Integration Studies (Presentation)  

SciTech Connect (OSTI)

Concentrating solar power with thermal energy storage (CSP-TES) can provide multiple benefits to the grid, including low marginal cost energy and the ability to levelize load, provide operating reserves, and provide firm capacity. It is challenging to properly value the integration of CSP because of the complicated nature of this technology. Unlike completely dispatchable fossil sources, CSP is a limited energy resource, depending on the hourly and daily supply of solar energy. To optimize the use of this limited energy, CSP-TES must be implemented in a production cost model with multiple decision variables for the operation of the CSP-TES plant. We develop and implement a CSP-TES plant in a production cost model that accurately characterizes the three main components of the plant: solar field, storage tank, and power block. We show the effect of various modelling simplifications on the value of CSP, including: scheduled versus optimized dispatch from the storage tank and energy-only operation versus co-optimization with ancillary services.

Hummon, M.; Jorgenson, J.; Denholm, P.; Mehos, M.

2013-10-01T23:59:59.000Z

375

EXPERIMENTAL EVALUATION OF THE THERMAL PERFORMANCE OF A WATER SHIELD FOR A SURFACE POWER REACTOR  

SciTech Connect (OSTI)

Water based reactor shielding is being investigated for use on initial lunar surface power systems. A water shield may lower overall cost (as compared to development cost for other materials) and simplify operations in the setup and handling. The thermal hydraulic performance of the shield is of significant interest. The mechanism for transferring heat through the shield is natural convection. Natural convection in a 100 kWt lunar surface reactor shield design is evaluated with 2 kW power input to the water in the Water Shield Testbed (WST) at the NASA Marshall Space Flight Center. The experimental data from the WST is used to validate a CFD model. Performance of the water shield on the lunar surface is then predicted with a CFD model anchored to test data. The experiment had a maximum water temperature of 75 C. The CFD model with 1/6-g predicts a maximum water temperature of 88 C with the same heat load and external boundary conditions. This difference in maximum temperature does not greatly affect the structural design of the shield, and demonstrates that it may be possible to use water for a lunar reactor shield.

REID, ROBERT S. [Los Alamos National Laboratory; PEARSON, J. BOSIE [Los Alamos National Laboratory; STEWART, ERIC T. [Los Alamos National Laboratory

2007-01-16T23:59:59.000Z

376

Modelling Concentrating Solar Power with Thermal Energy Storage for Integration Studies: Preprint  

SciTech Connect (OSTI)

Concentrating solar power with thermal energy storage (CSP-TES) can provide multiple benefits to the grid, including low marginal cost energy and the ability to levelize load, provide operating reserves, and provide firm capacity. It is challenging to properly value the integration of CSP because of the complicated nature of this technology. Unlike completely dispatchable fossil sources, CSP is a limited energy resource, depending on the hourly and daily supply of solar energy. To optimize the use of this limited energy, CSP-TES must be implemented in a production cost model with multiple decision variables for the operation of the CSP-TES plant. We develop and implement a CSP-TES plant in a production cost model that accurately characterizes the three main components of the plant: solar field, storage tank, and power block. We show the effect of various modelling simplifications on the value of CSP, including: scheduled versus optimized dispatch from the storage tank and energy-only operation versus co-optimization with ancillary services.

Hummon, M.; Denholm, P.; Jorgenson, J.; Mehos, M.

2013-10-01T23:59:59.000Z

377

4-E (Energy, Exergy, Environment, and Economic) analysis of solar thermal aided coal-fired power plants  

Science Journals Connector (OSTI)

Solar aided feedwater heating (SAFWH) appears to be a prospective option for using solar thermal energy in existing or new coal-fired thermal power plants. This article deals with the 4-E (namely energy, exergy, environment, and economic) analysis of solar thermal aided coal-fired power plants to establish their techno-economic viability. An operating coal-fired subcritical (SubC) and the first supercritical (SupC) power plant being commissioned in India are considered as reference power plants for SAFWH. The 4-E analysis is reported assuming operation of coal-fired power plants with SAFWH for 8h/day in either fuel conservation or power boosting mode. An instantaneous reduction of about 1419% in coal consumption is observed by substituting turbine bleed streams to all the feedwater heaters including deaerator with SAFWH in fuel conservation mode. The substitution of turbine bleed stream to high pressure feedwater heater alone with SAFWH results in about 56% instantaneous improvement in coal consumption and additional power generation for the fuel conservation and power boosting modes, respectively compared with the same values in reference power plants. The annual savings in fuel cost alone correspond to Indian Rupee (INR) 73.574.5 millions. The performance of solar thermal aided coal-fired power plants is also measured in terms of energy and exergy performance index and it is observed that the utilization of solar energy for feedwater heating is more efficient based on exergy rather than energy. The environmental analysis shows that about 62,000 and 65,000t of CO2 are reduced annually from 500MWe SubC and 660MWe SupC coal-fired power plants, respectively using the best possible SAFWH option. However, the cost/tonne of CO2 avoided is about 77758885 and 83959790 INR (~200 USD) for solar thermal aided coal-fired SubC and SupC power plants, respectively far higher than the most mitigation measures under consideration today. Furthermore, SAFWH is found to be a not very cost effective measure based on the cost of saved fuel (coal).

M.V.J.J. Suresh; K.S. Reddy; Ajit Kumar Kolar

2010-01-01T23:59:59.000Z

378

In-Depth: Cleantech at the National Labs | Department of Energy  

Energy Savers [EERE]

- 5:30pm Addthis These solar power collection dishes at Sandia National Labs' National Solar Thermal Test Facility are capable of some of the highest solar to electricity...

379

Proceedings of the 2012 International Congress on Advances in National Power Plants - ICAPP '12  

SciTech Connect (OSTI)

ICAPP '12 provides a forum for leaders of the nuclear industry to exchange information, present results from their work, review the state of the industry, and discuss future directions and needs for the deployment of new nuclear power plant systems around the world. These proceedings gather 326 papers covering the following topics: 1. Water-Cooled Reactor Programs; 2. High Temperature Gas Cooled Reactors; 3. LMFR and Innovative Reactor Programs; 4. Operation, Performance and Reliability Management; 5. Plant Safety Assessment and Regulatory Issues; 6. Reactor Physics and Analysis; 7. Thermal Hydraulics Analysis and Testing; 8. Fuel Cycle and Waste Management; 9. Materials and Structural Issues; 10. Nuclear Energy and Global Environment; 11. Deployment and Cross-Cutting Issues; 12. Plant Licensing and International Regulatory Issues.

NONE

2012-07-01T23:59:59.000Z

380

Thermal Conductivity Enhancement of High Temperature Phase Change Materials for Concentrating Solar Power Plant Applications  

E-Print Network [OSTI]

3 Fig. 1.2. Solar power plant operation [Materials for Concentrating Solar Power Plant Applications AMaterials for Concentrating Solar Power Plant Applications

Roshandell, Melina

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Wavelet-based multi-resolution analysis and artificial neural networks for forecasting temperature and thermal power consumption  

E-Print Network [OSTI]

the functioning of a multi-energy district boiler (La Rochelle, west coast of France), adding to the plant. Substituting the prediction task of an original time series of high variability by the estimation of its, outdoor temperature, thermal power consumption, hot water distribution network, district boiler. 1

Boyer, Edmond

382

Evaluation of Annual Efficiencies of High Temperature Central Receiver Concentrated Solar Power Plants with Thermal Energy Storage  

Science Journals Connector (OSTI)

Abstract The current study has examined four cases of a central receiver concentrated solar power plant with thermal energy storage using the DELSOL3 and SOLERGY computer codes. The current state-of-the-art base case was compared with a theoretical high temperature case, which was based on the scaling of some input parameters and the estimation of other parameters based on performance targets from the Department of Energy SunShot Initiative. This comparison was done for both current and high temperature cases in two configurations: a surround field with an external cylindrical receiver and a north field with a single cavity receiver. The optical designs for all four cases were done using the DELSOL3 computer code; the results were then passed to the SOLERGY computer code, which uses historical typical meteorological year (TMY) data to estimate the plant performance over the course of one year of operation. Each of the four cases was sized to produce 100 \\{MWe\\} of gross electric power, have sensible liquid thermal storage capacity to generate electric power at full rated production level for 6hours, and have a solar multiple of 1.8. There is a fairly dramatic difference between the design point and annual average performance. The largest differences are in the solar field and receiver subsystems, and also in energy losses due to the thermal energy storage being full to capacity. Another notable finding in the current study is the relatively small difference in annual average efficiencies between the Base and High Temperature cases. For both the Surround Field and North Field cases, the increase in annual solar to electric efficiency is <2%, despite an increase in thermal to electric conversion efficiency of over 8%. The reasons for this include the increased thermal losses due to higher temperature operation and operational losses due to start-up and shut-down of plant sub-systems. Thermal energy storage can mitigate some of these losses by utilizing larger thermal energy storage to ensure that the electric power production system does not need to stop and re-start as often, but solar energy is inherently transient. Economic and cost considerations were not considered here, but will have a significant impact on solar thermal electric power production strategy and sizing.

B. Ehrhart; D. Gill

2014-01-01T23:59:59.000Z

383

Project Profile: Novel Molten Salts Thermal Energy Storage for Concentrating Solar Power Generation  

Broader source: Energy.gov [DOE]

The University of Alabama, under the Thermal Storage FOA, is developing thermal energy storage (TES) media consisting of low melting point (LMP) molten salt with high TES density for sensible heat storage systems.

384

Project Profile: Novel Thermal Energy Storage Systems for Concentrating Solar Power  

Broader source: Energy.gov [DOE]

The University of Connecticut, under the Thermal Storage FOA, is developing innovative heat transfer devices and methodologies for novel thermal energy storage (TES) systems for CSP involving phase change materials (PCMs).

385

Technical and economic feasibility of a Thermal Gradient Utilization Cycle (TGUC) power plant  

E-Print Network [OSTI]

has grown in energy technologies that use renewable resources such as solar (thermal conversion, ocean thermal energy conversion, photovoltaics, wind and biomass conversion), geothermal and magnetohydrodynamics (MHD) . A new concept that can...

Raiji, Ashok

1980-01-01T23:59:59.000Z

386

Thermal optimization of high power LED arrays with a fin cooling system  

Science Journals Connector (OSTI)

In this paper, we describe an optimization process of thermal design for the light lamp which utilizes the Light Emitting Diode (LED) module as a lighting source. The thermal performance of the LED module was sho...

Sun Ho Jang; Moo Whan Shin

2011-10-01T23:59:59.000Z

387

Thermal and Bulk Comptonization in Accretion-powered X-Ray Pulsars  

Science Journals Connector (OSTI)

We develop a new theoretical model for the spectral formation process in accretion-powered X-ray pulsars based on a detailed treatment of the bulk and thermal Comptonization occurring in the accreting, shocked gas. A rigorous eigenfunction expansion method is employed to obtain the analytical solution for the Green's function describing the scattering of radiation injected into the column from a monochromatic source located at an arbitrary height above the stellar surface. The emergent spectrum is calculated by convolving the Green's function with source terms corresponding to bremsstrahlung, cyclotron, and blackbody emission. The energization of the photons in the shock, combined with cyclotron absorption, naturally produces an X-ray spectrum with a relatively flat continuum shape and a high-energy quasi-exponential cutoff. We demonstrate that the new theory successfully reproduces the phase-averaged spectra of the bright pulsars Her X-1, LMC X-4, and Cen X-3. In these luminous sources, it is shown that the emergent spectra are dominated by Comptonized bremsstrahlung emission.

Peter A. Becker; Michael T. Wolff

2007-01-01T23:59:59.000Z

388

Rhodium self-powered neutron detector as a suitable on-line thermal neutron flux monitor in BNCT treatments  

SciTech Connect (OSTI)

Purpose: A rhodium self-powered neutron detector (Rh SPND) has been specifically developed by the Comision Nacional de Energia Atomica (CNEA) of Argentina to measure locally and in real time thermal neutron fluxes in patients treated with boron neutron capture therapy (BNCT). In this work, the thermal and epithermal neutron response of the Rh SPND was evaluated by studying the detector response to two different reactor spectra. In addition, during clinical trials of the BNCT Project of the CNEA, on-line neutron flux measurements using the specially designed detector were assessed. Methods: The first calibration of the detector was done with the well-thermalized neutron spectrum of the CNEA RA-3 reactor thermal column. For this purpose, the reactor spectrum was approximated by a Maxwell-Boltzmann distribution in the thermal energy range. The second calibration was done at different positions along the central axis of a water-filled cylindrical phantom, placed in the mixed thermal-epithermal neutron beam of CNEA RA-6 reactor. In this latter case, the RA-6 neutron spectrum had been well characterized by both calculation and measurement, and it presented some marked differences with the ideal spectrum considered for SPND calibrations at RA-3. In addition, the RA-6 neutron spectrum varied with depth in the water phantom and thus the percentage of the epithermal contribution to the total neutron flux changed at each measurement location. Local (one point-position) and global (several points-positions) and thermal and mixed-field thermal neutron sensitivities were determined from these measurements. Thermal neutron flux was also measured during BNCT clinical trials within the irradiation fields incident on the patients. In order to achieve this, the detector was placed on patient's skin at dosimetric reference points for each one of the fields. System stability was adequate for this kind of measurement. Results: Local mixed-field thermal neutron sensitivities and global thermal and mixed-field thermal neutron sensitivities derived from measurements performed at the RA-6 were compared and no significant differences were found. Global RA-6-based thermal neutron sensitivity showed agreement with pure thermal neutron sensitivity measurements performed in the RA-3 spectrum. Additionally, the detector response proved nearly unchanged by differences in neutron spectra from real (RA-6 BNCT beam) and ideal (considered for calibration calculations at RA-3) neutron source descriptions. The results confirm that the special design of the Rh SPND can be considered as having a pure thermal response for neutron spectra with epithermal-to-thermal flux ratios up to 12%. In addition, the linear response of the detector to thermal flux allows the use of a mixed-field thermal neutron sensitivity of 1.95 {+-} 0.05 x 10{sup -21} A n{sup -1}{center_dot}cm{sup 2}{center_dot}s. This sensitivity can be used in spectra with up to 21% epithermal-to-thermal flux ratio without significant error due to epithermal neutron and gamma induced effects. The values of the measured fluxes in clinical applications had discrepancies with calculated results that were in the range of -25% to +30%, which shows the importance of a local on-line independent measurement as part of a treatment planning quality control system. Conclusions: The usefulness of the CNEA Rh SPND for the on-line local measurement of thermal neutron flux on BNCT patients has been demonstrated based on an appropriate neutron spectra calibration and clinical applications.

Miller, Marcelo E.; Sztejnberg, Manuel L.; Gonzalez, Sara J.; Thorp, Silvia I.; Longhino, Juan M.; Estryk, Guillermo [Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429 (Argentina); Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429, Argentina and CONICET, Av. Rivadavia 1917, Ciudad de Buenos Aires 1033 (Argentina); Comision Nacional de Energia Atomica, Av. del Libertador 8250, Ciudad de Buenos Aires 1429 (Argentina)

2011-12-15T23:59:59.000Z

389

EVALUATING IMPACT ON AMPACITY ACCORDING TO IEC-60287 REGARDING THERMALLY UNFAVOURABLE PLACEMENT OF POWER CABLES.  

E-Print Network [OSTI]

?? According to International Electrotechnical Commissions standard document IEC-60287 the current carrying capabilities of power cables can be mathematically modelled. Current rating of power cables (more)

Lindstrm, Ludvig

2011-01-01T23:59:59.000Z

390

MONITORING POWER PLANT EFFICIENCY USING THE MICROWAVE-EXCITED THERMAL-ACOUSTIC EFFECT TO MEASURE UNBURNED CARBON  

SciTech Connect (OSTI)

The objective of this project is to explore microwave-excited thermal-acoustic (META) phenomena for quantitative analysis of granular and powdered materials, with the culmination of the research to be an on-line carbon-in-ash monitor for coal-fired power plants. This technique of analyzing unburned carbon in fly ash could be a less tedious and time consuming method as compared to the traditional LOI manual procedure. Phase 1 of the research focused on off-line single-frequency thermal-acoustic measurements where an off-line fly ash monitor was constructed that could operate as analytical tool to explore instrument and methodology parameters for quantifying the microwave-excited thermal-acoustic effect of carbon in fly ash, and it was determined that the off-line thermal-acoustic technique could predict the carbon content of a random collection of fly ashes with a linear correlation constant of R{sup 2} = 0.778. Much higher correlations are expected for fly ashes generated from a single boiler. Phase 2 of the research developing a methodology to generate microwave spectra of various powders, including fly ash, coal, and inorganic minerals, and to determine if these microwave spectra could be used for chemical analyses. Although different minerals produced different responses, higher resolution microwave spectra would be required to be able to distinguish among minerals. Phase 3 of the research focused on the development of an on-line fly ash monitor that could be adapted to measure either a thermal-acoustic or thermal-elastic response to due microwave excitation of fly ash. The thermal-acoustic response was successfully employed for this purpose but the thermal-elastic response was too weak to yield a useful on-line device.

Robert C. Brown; Robert J. Weber; Jeffrey J. Swetelitsch

2005-01-01T23:59:59.000Z

391

Thermal-hydraulics Analysis of a Radioisotope-powered Mars Hopper Propulsion System  

SciTech Connect (OSTI)

Thermal-hydraulics analyses results produced using a combined suite of computational design and analysis codes are presented for the preliminary design of a concept Radioisotope Thermal Rocket (RTR) propulsion system. Modeling of the transient heating and steady state temperatures of the system is presented. Simulation results for propellant blow down during impulsive operation are also presented. The results from this study validate the feasibility of a practical thermally capacitive RTR propulsion system.

Robert C. O'Brien; Andrew C. Klein; William T. Taitano; Justice Gibson; Brian Myers; Steven D. Howe

2011-02-01T23:59:59.000Z

392

Capabilities for high explosive pulsed power research at Los Alamos National Laboratory  

SciTech Connect (OSTI)

Research on topics requiring high magnetic fields and high currents have been pursued using high explosive pulsed power (HEPP) techniques since the 1950s at Los Alamos National Laboratory. We have developed many sophisticated HEPr systems through the years, and most of them depend on technology available from the nuclear weapons program. Through the 1980s and 1990s, our budgets would sustain parallel efforts in zpinch research using both HEPr and capacitor banks. In recent years, many changes have occurred that are driven by concerns such as safety, security, and environment, as well as reduced budgets and downsizing of the National Nuclear Security Administration (NNSA) complex due to the end of the cold war era. In this paper, we review the teclmiques developed to date, and adaptations that are driven by changes in budgets and our changing complex. One new Ranchero-based solid liner z-pinch experimental design is also presented. Explosives that are cast to shape instead of being machined, and initiation systems that depend on arrays of slapper detonators are important new tools. Some materials that are seen as hazardous to the environment are avoided in designs. The process continues to allow a wide range of research however, and there are few, if any, experiments that we have done in the past that could not be perform today. The HErr firing facility at Los Alamos continues to have a 2000 lb. high explosive limit, and our 2.4 MJ capacitor bank remains a mainstay of the effort. Modem diagnostic and data analysis capabilities allow fewer personnel to achieve better results, and in the broad sense we continue to have a robust capability.

Goforth, James H [Los Alamos National Laboratory; Oona, Henn [Los Alamos National Laboratory; Tasker, Douglas G [Los Alamos National Laboratory; Kaul, A M [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

393

EIS-0066: The Role of Bonneville Power Administration in the Pacific Northwest Power Supply System- including its Participation in a Hydro-Thermal Power Program  

Broader source: Energy.gov [DOE]

The Bonneville Power Administration (BPA) prepared this EIS to examine the environmental impacts of the Pacific Northwest Power Planning and Conservation Act, which will foster regional electric power planning in the four Northwest states, as well as increase BPAs authority to address future power needs.

394

Thermal Conductivity Enhancement of High Temperature Phase Change Materials for Concentrating Solar Power Plant Applications  

E-Print Network [OSTI]

Thermal energy storage for sustainable energy consumption Sustainable Energy, Cambridge University Press, 65- Dermott A.M, Frysinger G.R, Storage

Roshandell, Melina

2013-01-01T23:59:59.000Z

395

Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines (Presentation)  

SciTech Connect (OSTI)

This presentation gives an overview of NREL's Thermal Stress and Reliability Project work from October 2007 to March 2009 with an emphasis on activity during 2008/2009.

O'Keefe, M. P.

2009-05-01T23:59:59.000Z

396

Small modular HTGR nuclear power plant concept to meet the total energy needs of the developing nations  

SciTech Connect (OSTI)

In this paper, a small modular High-Temperature Gas-Cooled Reactor (HTGR) is described that can support the total energy needs of the developing nations by supplying electrical power, process steam, low-grade heat for desalination, and hydrogen production. Major features of the nuclear power plant concept, currently under development by GA Technologies Inc. (GA), are discussed with emphasis on (1) plant simplicity, (2) inherent safety, (3) ease of operation, (4) design and licensing standardization, and (5) acceptable power generation economics.

McDonald, C.F.

1983-09-26T23:59:59.000Z

397

Water chemistry of the system for cooling the electrical generator stator of the power unit at a thermal power station  

Science Journals Connector (OSTI)

Results from studies of the water chemistry used in the system for cooling the stator windings of alternators used in supercritical-pressure power units are presented, and a solution is ... suggested using which ...

B. M. Larin; A. B. Larin; A. N. Korotkov; M. Yu. Oparin

2011-07-01T23:59:59.000Z

398

NREL Uses Computing Power to Investigate Tidal Power (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Uses Computing Power to Uses Computing Power to Investigate Tidal Power Researchers at the National Renewable Energy Laboratory (NREL) have applied their knowledge of wind flow and turbulence to simulations of underwater tidal turbines. Inspired by similar simulations of wind turbine arrays, NREL researchers used their wind expertise, a supercomputer, and large-eddy simulation to study how the placement of turbines affects the power production of an underwater tidal turbine array. As tides ebb and flow, they create water currents that carry a significant amount of kinetic energy. To capture this energy, several companies are developing and deploying devices known as horizontal-axis tidal turbines, which resemble small wind turbines. These devices can be arranged in an array of multiple turbines to maximize the energy extracted in tidal

399

Thermal Issues Associated with the Lighting Systems, Electronics Racks, and Pre-Amplifier Modules in the National Ignition System  

SciTech Connect (OSTI)

This report summarizes an investigation of the thermal issues related to the National Ignition Facility. The influence of heat sources such as lighting fixtures, electronics racks, and pre-amplifier modules (PAMs) on the operational performance of the laser guide beam tubes and optical alignment hardware in the NE laser bays were investigated with experiments and numerical models. In particular, empirical heat transfer data was used to establish representative and meaningful boundary conditions and also serve as bench marks for computational fluid dynamics (CFD) models. Numerical models, constructed with a commercial CFD code, were developed to investigate the extent of thermal plumes and radiation heat transfer from the heat sources. From these studies, several design modifications were recommended including reducing the size of all fluorescent lights in the NIF laser bays to single 32 W bulb fixtures, maintaining minimum separation distances between light fixtures/electronics racks and beam transport hardware, adding motion sensors in areas of the laser bay to control light fixture operation during maintenance procedures, properly cooling all electronics racks with air-water heat exchangers with heat losses greater than 25 W/rack to the M1 laser bay, ensuring that the electronics racks are not overcooked and thus maintain their surface temperatures to within a few degrees centigrade of the mean air temperature, and insulating the electronic bays and optical support structures on the PAMs.

A. C. Owen; J. D. Bernardin; K. L. Lam

1998-08-01T23:59:59.000Z

400

Control of CO2 emission through enhancing energy efficiency of auxiliary power equipment in thermal power plant  

Science Journals Connector (OSTI)

Abstract This paper describes the results of energy efficiency enhancement in 23 numbers of 210MW coal fired power plants spread over India. Energy efficiency improvement of major auxiliary equipment with different plant load factors are summarized here with improved performance. The effect of plant load factor on all major auxiliary equipment and improvement in performance of auxiliary equipment are discussed in this paper. Operation of the plant at improved plant load factor reduced the specific auxiliary power from 11.23% at 70% PLF to 8.74% at 100% PLF that reduced the net auxiliary power by 9.1MU/year that is an equivalent reduction of CO2 emission by 9500t/year. Optimizing the excess air, controlling the furnace ingress, enhanced energy efficiency of individual equipment by proper maintenance, etc., improves the plant capacity and reduces the overall auxiliary power by about 1.52.1% of gross energy generation i.e., equivalent CO2 reduction of 23,00032,400t/year and release an additional power of about 3.5MW (for a typical one 210MW power plant) into grid.

Rajashekar P. Mandi; Udaykumar R. Yaragatti

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

Combining a thermal-imaging diagnostic with an existing imaging VISAR diagnostic at the National Ignition Facility (NIF)  

SciTech Connect (OSTI)

Optical diagnostics are currently being designed to analyze high-energy density physics experiments at the National Ignition Facility (NIF). Two independent line-imaging Velocity Interferometer System for Any Reflector (VISAR) interferometers have been fielded to measure shock velocities, breakout times, and emission of targets having sizes of 15 mm. An 8-inch-diameter, fused silica triplet lens collects light at f/3 inside the 30-foot-diameter NIF vacuum chamber. VISAR recordings use a 659.5-nm probe laser. By adding a specially coated beam splitter to the interferometer table, light at wavelengths from 540 to 645 nm is spilt into a thermal-imaging diagnostic. Because fused silica lenses are used in the first triplet relay, the intermediate image planes for different wavelengths separate by considerable distances. A corrector lens on the interferometer table reunites these separated wavelength planes to provide a good image. Thermal imaging collects light at f/5 from a 2-mm object placed at Target Chamber Center (TCC). Streak cameras perform VISAR and thermal-imaging recording. All optical lenses are on kinematic mounts so that pointing accuracy of the optical axis may be checked. Counter-propagating laser beams (orange and red) are used to align both diagnostics. The red alignment laser is selected to be at the 50 percent reflection point of the beam splitter. This alignment laser is introduced at the recording streak cameras for both diagnostics and passes through this special beam splitter on its way into the NIF vacuum chamber.

Robert M. Malone; John R. Celesteb; Peter M. Celliers; Brent C. Froggeta; Robert L. Guyton; Morris I. Kaufman; Tony L. Lee; Brian J. MacGowan; Edmund W. Ng; Imants P. Reinbachs; Ronald B. Robinson; Lynn G. Seppala; Tom W. Tunnell; Phillip W. Watts

2005-01-01T23:59:59.000Z

402

Project Profile: Novel Thermal Storage Technologies for Concentrating Solar Power Generation  

Broader source: Energy.gov [DOE]

Lehigh University, under the Thermal Storage FOA, is working to establish the technical feasibility of using phase change materials (PCM) at elevated temperatures and to acquire engineering results that will lead to the demonstration of large-scale thermal storage systems.

403

THE NATIONAL CARBON CAPTURE CENTER AT THE POWER SYSTEMS DEVELOPMENT FACILITY  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy and dedicated to the advancement of clean coal technology. In addition to the development of advanced coal gasification processes, the PSDF features the National Carbon Capture Center (NCCC) to study CO2 capture from coal-derived syngas and flue gas. The NCCC includes multiple, adaptable test skids that allow technology development of CO2 capture concepts using coal-derived syngas and flue gas in industrial settings. Because of the ability to operate under a wide range of flow rates and process conditions, research at the NCCC can effectively evaluate technologies at various levels of maturity. During the Budget Period Three reporting period, efforts at the NCCC/PSDF focused on testing of pre-combustion CO2 capture and related processes; commissioning and initial testing at the post-combustion CO2 capture facilities; and operating the gasification process to develop gasification related technologies and for syngas generation to test syngas conditioning technologies.

None, None

2012-09-01T23:59:59.000Z

404

THE NATIONAL CARBON CAPTURE CENTER AT THE POWER SYSTEMS DEVELOPMENT FACILITY  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy and dedicated to the advancement of clean coal technology. In addition to the development of advanced coal gasification processes, the PSDF features the National Carbon Capture Center (NCCC) to study CO2 capture from coal-derived syngas and flue gas. The NCCC includes multiple, adaptable test skids that allow technology development of CO2 capture concepts using coal-derived syngas and flue gas in industrial settings. Because of the ability to operate under a wide range of flow rates and process conditions, research at the NCCC can effectively evaluate technologies at various levels of maturity. During the Budget Period Two reporting period, efforts at the PSDF/NCCC focused on new technology assessment and test planning; designing and constructing post-combustion CO2 capture facilities; testing of pre-combustion CO2 capture and related processes; and operating the gasification process to develop gasification related technologies and for syngas generation to test syngas conditioning technologies.

None, None

2011-05-11T23:59:59.000Z

405

THE NATIONAL CARBON CAPTURE CENTER AT THE POWER SYSTEMS DEVELOPMENT FACILITY  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy and dedicated to the advancement of clean coal technology. In addition to the development of advanced coal gasification processes, the PSDF features the National Carbon Capture Center (NCCC) to study CO2 capture from coal-derived syngas and flue gas. The newly established NCCC will include multiple, adaptable test skids that will allow technology development of CO2 capture concepts using coal-derived syngas and flue gas in industrial settings. Because of the ability to operate under a wide range of flow rates and process conditions, research at the NCCC can effectively evaluate technologies at various levels of maturity. During the Budget Period One reporting period, efforts at the PSDF/NCCC focused on developing a screening process for testing consideration of new technologies; designing and constructing pre- and post-combustion CO2 capture facilities; developing sampling and analytical methods; expanding fuel flexibility of the Transport Gasification process; and operating the gasification process for technology research and for syngas generation to test syngas conditioning technologies.

None, None

2011-03-01T23:59:59.000Z

406

Reactor Thermal-Hydraulics  

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

Thermal-Hydraulics Thermal-Hydraulics Dr. Tanju Sofu, Argonne National Laboratory In a power reactor, the energy produced in fission reaction manifests itself as heat to be removed by a coolant and utilized in a thermodynamic energy conversion cycle to produce electricity. A simplified schematic of a typical nuclear power plant is shown in the diagram below. Primary coolant loop Steam Reactor Heat exchanger Primary pump Secondary pump Condenser Turbine Water Although this process is essentially the same as in any other steam plant configuration, the power density in a nuclear reactor core is typically four orders of magnitude higher than a fossil fueled plant and therefore it poses significant heat transfer challenges. Maximum power that can be obtained from a nuclear reactor is often limited by the

407

Vehicle Technologies Office Merit Review 2014: High-Temperature Air-Cooled Power Electronics Thermal Design  

Broader source: Energy.gov [DOE]

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

408

Journal of Power Sources 160 (2006) 662673 Power and thermal characterization of a lithium-ion battery  

E-Print Network [OSTI]

-ion battery; Electrochemical modeling; Hybrid-electric vehicles; Transient; Solid-state diffusion; Heat, indicating solid-state diffusion is the limiting mechanism. The 3.9 V cell-1 maximum limit, meant to protect where batteries are used as a transient pulse power source, cycled about a relatively fixed state

409

SST: A Scalable Parallel Framework for Architecture-Level Performance, Power, Area and Thermal Simulation  

Science Journals Connector (OSTI)

......thermal simulation tool used for estimating chip-wide temperature based on...cores together does not derive more benefit from cache sharing compared with...Cognitive Packet Network. Int. Conf. Smart Grids, Green Communications, and IT......

Ming-yu Hsieh; Rolf Riesen; Kevin Thompson; William Song; Arun Rodrigues

2012-02-01T23:59:59.000Z

410

Predicting Battery Pack Thermal and Electrical Performance in a Vehicle Using Realistic Drive Cycle Power Profiles  

Science Journals Connector (OSTI)

The heat generated during battery charge and discharge cycles is a major ... issue, particularly since the performance of a battery depends on its operating temperature. As a consequence, robust thermal managemen...

Allen Curran; Scott Peck

2013-01-01T23:59:59.000Z

411

Thermal lens effect in solar-pumped high-power solid-state lasers  

Science Journals Connector (OSTI)

The thermal lens effect in the Nd:YAG laser rods pumped with a concentrated solar flux of the Big Solar Furnace of the NPO Fizika-Solntse of...

S. A. Bakhramov; Sh. D. Paiziev; Sh. I. Klychev; A. K. Kasimov

2007-09-01T23:59:59.000Z

412

226Ra, 232Th and 40K radionuclides enhancement rate and dose assessment for residues of lignite-fired thermal power plants in Turkey  

Science Journals Connector (OSTI)

......found in residues resulting from coal combustion in thermal power plants can widely depend on mineral ingredients of coal. Coal and ash activity concentrations...Radium 7440-29-1 Thorium | Coal Ash chemistry Environmental Exposure analysis......

A. Parmaksiz; P. Arikan; M. Vural; E. Yeltepe; I. Tkenmez

2011-11-01T23:59:59.000Z

413

Effect of Plasma Deposition Using Low-Power/Non-thermal Atmospheric Pressure Plasma on Promoting Adhesion of Composite Resin to Enamel  

Science Journals Connector (OSTI)

...This study investigated the effect of monomer deposition through a low-power, non-thermal atmospheric pressure plasma (NT-APP) on adhesion of resin ... stereomicroscope and a scanning electron microscope. The

Geum-Jun Han; Jae-Hoon Kim; Sung-No Chung

2014-07-01T23:59:59.000Z

414

The National Carbon Capture Center at the Power Systems Development Facility  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy and dedicated to the advancement of clean coal technology. In addition to the development of high efficiency coal gasification processes, the PSDF features the National Carbon Capture Center (NCCC) to promote new technologies for CO{sub 2} capture from coal-derived syngas and flue gas. The NCCC includes multiple, adaptable test skids that allow technology development of CO{sub 2} capture concepts using coal-derived syngas and flue gas in industrial settings. Because of the ability to operate under a wide range of flow rates and process conditions, research at the NCCC can effectively evaluate technologies at various levels of maturity and accelerate their development path to commercialization. During the calendar year 2012 portion of the Budget Period Four reporting period, efforts at the NCCC focused on testing of pre- and post-combustion CO{sub 2} capture processes and gasification support technologies. Preparations for future testing were on-going as well, and involved facility upgrades and collaboration with numerous technology developers. In the area of pre-combustion, testing was conducted on a new water-gas shift catalyst, a CO{sub 2} solvent, and gas separation membranes from four different technology developers, including two membrane systems incorporating major scale-ups. Post-combustion tests involved advanced solvents from three major developers, a gas separation membrane, and two different enzyme technologies. An advanced sensor for gasification operation was evaluated, operation with biomass co-feeding with coal under oxygen-blown conditions was achieved, and progress continued on refining several gasification support technologies.

None

2012-12-31T23:59:59.000Z

415

The National Carbon Capture Center at the Power Systems Development Facility  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored by the U.S. Department of Energy (DOE) and dedicated to the advancement of clean coal technology. In addition to the development of high efficiency coal gasification processes, the PSDF features the National Carbon Capture Center (NCCC) to promote new technologies for CO2 capture from coal-derived flue gas and syngas. The NCCC includes multiple, adaptable test skids that allow technology development of CO2 capture concepts using coal-derived flue gas and syngas in industrial settings. Because of the ability to operate under a wide range of flow rates and process conditions, research at the NCCC can effectively evaluate technologies at various levels of maturity and accelerate their development paths to commercialization. During the calendar year 2013 portion of the Budget Period Four reporting period, efforts at the NCCC focused on post-combustion CO2 capture, gasification, and pre-combustion CO2 capture technology testing. Preparations for future testing were on-going as well, and involved facility upgrades and collaboration with numerous technology developers. In the area of post-combustion, testing was conducted on an enzyme-based technology, advanced solvents from two major developers, and a gas separation membrane. During the year, the gasification process was operated for three test runs, supporting development of water-gas shift and COS hydrolysis catalysts, a mercury sorbent, and several gasification support technologies. Syngas produced during gasification operation was also used for pre-combustion capture technologies, including gas separation membranes from three different technology developers, a CO2 sorbent, and CO2 solvents.

None, None

2014-07-14T23:59:59.000Z

416

A thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro-reformer and functional  

E-Print Network [OSTI]

A thermally self-sustained micro-power plant with integrated micro-solid oxide fuel cells, micro Micro-solid oxide fuel cell Thin films Butane reformation Chemical micro-reactors Thermally independent 2014 Accepted 8 February 2014 Available online xxx a b s t r a c t Low temperature micro-solid oxide

Daraio, Chiara

417

Thermal Integration of CO{sub 2} Compression Processes with Coal-Fired Power Plants Equipped with Carbon Capture  

SciTech Connect (OSTI)

Coal-fired power plants, equipped either with oxycombustion or post-combustion CO{sub 2} capture, will require a CO{sub 2} compression system to increase the pressure of the CO{sub 2} to the level needed for sequestration. Most analyses show that CO{sub 2} compression will have a significant effect on parasitic load, will be a major capital cost, and will contribute significantly to reduced unit efficiency. This project used first principle engineering analyses and computer simulations to determine the effects of utilizing compressor waste heat to improve power plant efficiency and increase net power output of coal-fired power plants with carbon capture. This was done for units with post combustion solvent-based CO{sub 2} capture systems and for oxyfired power plants, firing bituminous, PRB and lignite coals. The thermal integration opportunities analyzed for oxycombustion capture are use of compressor waste heat to reheat recirculated flue gas, preheat boiler feedwater and predry high-moisture coals prior to pulverizing the coal. Among the thermal integration opportunities analyzed for post combustion capture systems are use of compressor waste heat and heat recovered from the stripper condenser to regenerate post-combustion CO{sub 2} capture solvent, preheat boiler feedwater and predry high-moisture coals. The overall conclusion from the oxyfuel simulations is that thermal integration of compressor heat has the potential to improve net unit heat rate by up to 8.4 percent, but the actual magnitude of the improvement will depend on the type of heat sink used and to a lesser extent, compressor design and coal rank. The simulations of a unit with a MEA post combustion capture system showed that thermal integration of either compressor heat or stripper condenser heat to preheat boiler feedwater would result in heat rate improvements from 1.20 percent to 4.19 percent. The MEA capture simulations further showed that partial drying of low rank coals, done in combination with feedwater heating, would result in heat rate reductions of 7.43 percent for PRB coal and 10.45 percent for lignite.

Edward Levy

2012-06-29T23:59:59.000Z

418

DOE/EA-1247; Environmental Assessment for Electrical Power System Upgrades at Los Alamos National Laboratory (03/09/00)  

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

47 47 Environmental Assessment for Electrical Power System Upgrades at Los Alamos National Laboratory Los Alamos, New Mexico Final Document Date Prepared: March 9, 2000 Prepared by: U.S. Department of Energy, Los Alamos Area Office Final EA Electrical Power System Upgrades EA March 9, 2000 DOE/LAAO iii CONTENTS ACRONYMS AND TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1.0 PURPOSE AND NEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1.1 Role of Cooperating Agencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Background . . . . . . .

419

Novel Molten Salts Thermal Energy Storage for Concentrating Solar Power Generation  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

420

Direct Cooled Ceramic Substrate for Thermal Control of Automotive Power Electronics.  

E-Print Network [OSTI]

??As electric vehicle technology develops, manufacturers would like to move toward hotter coolants for power electronic components to reduce system level costs. Thus, unique designs (more)

Lowe, Kirk Townsend

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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

E-Print Network 3.0 - aged thermal power Sample Search Results  

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

in relatively cool... for power and area efficiency, not considering ... Source: Chung, Eui-Young - School of Electrical and Electronics Engineering, Yonsei University; Hu, Jie -...

422

Reversible Metal Hydride Thermal Energy Storage for High Temperature Power Generation Systems  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

423

Piezoelectric, solar and thermal energy harvesting for hybrid low-power generator systems with thin-film batteries  

Science Journals Connector (OSTI)

The harvesting of ambient energy to power small electronic components has received tremendous attention over the last decade. The research goal in this field is to enable self-powered electronic components for use particularly in wireless sensing and measurement applications. Thermal energy due to temperature gradients, solar energy and ambient vibrations constitute some of the major sources of energy that can be harvested. Researchers have presented several papers focusing on each of these topics separately. This paper aims to develop a hybrid power generator and storage system using these three sources of energy in order to improve both structural multifunctionality and system-level robustness in energy harvesting. A multilayer structure with flexible solar, piezoceramic, thin-film battery and metallic substructure layers is developed (with the overhang dimensions of 93 mm ? 25 mm ? 1.5 mm in cantilevered configuration). Thermal energy is also used for charging the thin-film battery layers using a 30.5 mm ? 33 mm ? 4.1 mm generator. Performance results are presented for charging and discharging of the thin-film battery layers using each one of the harvesting methods. It is shown based on the extrapolation of a set of measurements that 1 mA h of a thin-film battery can be charged in 20 min using solar energy (for a solar irradiance level of 223 W m?2), in 40 min using thermal energy (for a temperature difference of 31 C) and in 8 h using vibrational energy (for a harmonic base acceleration input of 0.5g at 56.4 Hz).

P Gambier; S R Anton; N Kong; A Erturk; D J Inman

2012-01-01T23:59:59.000Z

424

Comparative study of the thermal and power performances of a semi-transparent photovoltaic faade under different ventilation modes  

Science Journals Connector (OSTI)

Abstract This paper studied the thermal and power performances of a ventilated photovoltaic faade under different ventilation modes, and appropriate operation strategies for different weather conditions were proposed accordingly to maximize its energy conversion efficiency. This ventilated PV double-skin faade (PV-DSF) consists of an outside layer of semi-transparent amorphous silicon (a-Si) PV laminate, an inward-openable window and a 400mm airflow cavity. Before installation, the electrical characteristics under standard testing conditions (STC) and the temperature coefficients of the semi-transparent PV module were tested and determined in the laboratory. Field measurements were carried out to investigate the impact of different ventilation modes, namely, ventilated, buoyancy-driven ventilated and non-ventilated, on the thermal and power performances of this PV-DSF. The results show that the ventilated PV-DSF provides the lowest average solar heat gain coefficient (SHGC) and the non-ventilated PV-DSF provides the best thermal insulation performance. In terms of power performance, the energy output of the ventilated PV-DSF is greater than those of the buoyancy-driven ventilated and non-ventilated PV-DSFs by 1.9% and 3%, respectively, due to its much lower operating temperature. Based on the experimental results, a conclusion was drawn that the ventilation design can not only reduce the heat gain of PV-DSF but also improve the energy conversion efficiency of PV modules by bringing down their operating temperature. In addition, an optimum operation strategy is recommended for this kind of PV-DSF to maximize its overall energy efficiency under different weather conditions.

Jinqing Peng; Lin Lu; Hongxing Yang; Tao Ma

2014-01-01T23:59:59.000Z

425

NASA [National Aeronautics and Space Administration] low power DIPS [Dynamic Isotope Power System] conceptual design study; Final report  

SciTech Connect (OSTI)

This report describes the conceptual design and integration of a low power (0.5 to 1.0 kWe) Dynamic Isotope Power System (DIPS) Low Power (LPD) with the Mariner Mark II (MMII) spacecraft for use on interplanetary and space exploration missions as an alternative to RTGs. A detailed MMII/LPD system description is provided that discusses, among other things, the design requirements, design point selection, system layout and spacecraft integration, mechanical design, electrical system design, interface assessments, reliability, and safety. Performance characteristics are given for the reference 500 We LPD using a peak cycle temperature of 1100 K. Parametrics are provided giving the LPD performance characteristics at power levels up to 1.0 kWe and peak cycle temperatures as high as 1300 K. A side-by-side comparison of the LPD performance with the RTG performance is provided. Finally, program plans, costs, and schedules are provided giving the overall plan for design, development, fabrication, qualification, and acceptance of the LPD system.

Otting, W.

1990-12-01T23:59:59.000Z

426

Summary of: Simulating the Value of Concentrating Solar Power with Thermal Energy Storage in a Production Cost Model (Presentation)  

SciTech Connect (OSTI)

Concentrating solar power (CSP) deployed with thermal energy storage (TES) provides a dispatchable source of renewable energy. The value of CSP with TES, as with other potential generation resources, needs to be established using traditional utility planning tools. Production cost models, which simulate the operation of grid, are often used to estimate the operational value of different generation mixes. CSP with TES has historically had limited analysis in commercial production simulations. This document describes the implementation of CSP with TES in a commercial production cost model. It also describes the simulation of grid operations with CSP in a test system consisting of two balancing areas located primarily in Colorado.

Denholm, P.; Hummon, M.

2013-02-01T23:59:59.000Z

427

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network [OSTI]

thermal absorption solar photo- storage chiller thermalbetween solar thermal collection and storage systems and CHPimpact of solar thermal and heat storage on CO 2 emissions

Marnay, Chris

2010-01-01T23:59:59.000Z

428

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network [OSTI]

Environmental Value of Solar Thermal Systems in MicrogridsEnvironmental Value of Solar Thermal Systems in Microgridsa) ABSTRACT The addition of solar thermal and heat storage

Marnay, Chris

2010-01-01T23:59:59.000Z

429

Thermal analysis of injectable, cellular-scale optoelectronics with pulsed power  

Science Journals Connector (OSTI)

...analysis|optoelectronics|light-emitting diode|scaling law| 1. Introduction...analysis for a single inorganic light-emitting diode in the tissue In the device...Thermal analysis for inorganic light-emitting diode arrays in the tissue The results...

2013-01-01T23:59:59.000Z

430

Project Profile: Innovative Thermal Energy Storage for Baseload Solar Power Generation  

Broader source: Energy.gov [DOE]

The University of South Florida, under the Baseload CSP FOA, is researching and developing a thermal energy storage system based on encapsulated phase change materials (PCM) that can meet the utility-scale baseload CSP plant requirements at significantly lower system costs.

431

Measurement of natural radioactivity and radon exhalation rate in fly ash samples from a thermal power plant and estimation of radiation doses  

Science Journals Connector (OSTI)

Fly ash produced by coal-burning in thermal power station has become a subject of world wide interest in recent years because of its diverse uses in construction activities and considerable economic and environmental importance. Fly ash is used in the production of bricks, sheets, cement and also in land filling etc. Indian coals used in thermal power plants are found to have high ash contents, resulting in the production of large amount of fly ash. Coal contains radionuclides including uranium (the source of inert gas radon), Th and K. Thus coal combustion results in enhanced concentration of natural radionuclides 226Ra, 232Th and 40K. Since these radionuclides concentration in fly ash plays an important role in health physics it is important to measure radionuclides concentration in fly ash. In the present work enhanced radioactivity and radon exhalation rate from fly ash samples collected from a thermal power plant of NTPC (National Thermal Power Corporation), Dadri (U.P.) India, have been measured. A high resolution gamma ray spectroscopic system has been used for the measurement of natural radioactivity (226Ra, 232Th and 40K). Gamma spectrometric measurements were carried out at Inter-University Accelerator Centre, New Delhi using a coaxial n-type \\{HPGe\\} detector (EG&G, ORTEC, Oak Ridge, USA). Activity concentration of 226Ra varies from 81.82.2 to 177.310.0Bqkg?1 with an average value of 118.67.4Bqkg?1 and of 232Th from 111.63.2 to 178.53.9Bqkg?1 with an average value of 147.03.4Bqkg?1. 40K activity was found to be below detection limit in some samples while other samples have shown potassium activity to vary from 365.94.8 to 495.96.2Bqkg?1 with an average value of 352.04.5Bqkg?1. Surface radon exhalation rates (EA) and Mass exhalation rates (EM) in these samples were measured by Sealed can technique using LR-115 type II track detectors. EA is found to vary from 80.19.3 to 242.716.3mBqm?2h?1 with an average value 155.512.8mBqm?2h?1, while EM varies from 3.10.4 to 9.30.6mBqkg?1h?1 with an average value of 6.00.5mBqkg?1h?1. Radium equivalent activity (Raeq), related to the external gamma dose and internal dose due to radon and its daughters range from 283.2 to 422.4Bqkg?1 with an average value of 353.9Bqkg?1. The calculated values of external hazard index (Hex) vary from 0.77 to 1.87 with an average value of 1.03. Most of the samples show the value of Raeq close to the allowed upper limit of 370Bqkg?1 and Hex close to unity respectively except in two samples. Annual effective dose varies from 0.15 to 0.23mSvy?1 with an average value 0.19mSvy?1.

Mamta Gupta; Ajay Kumar Mahur; Rati Varshney; R.G. Sonkawade; K.D. Verma; Rajendra Prasad

2013-01-01T23:59:59.000Z

432

Westinghouse thermal barrier coatings development  

SciTech Connect (OSTI)

Westinghouse, in conjunction with the Department of Energy and Oak Ridge National Laboratory, has embarked upon a program for the development of advanced thermal barrier coatings for industrial gas turbines. Development of thermal barrier coatings (TBC`s) for industrial gas turbines has relied heavily on the transfer of technology from the aerospace industry. Significant differences in the time/temperature/stress duty cycles exist between these two coating applications. Coating systems which perform well in aerospace applications may not been optimized to meet power generation performance requirements. This program will focus on development of TBC`s to meet the specific needs of power generation applications.

Goedjen, J.G.; Wagner, G.

1995-12-31T23:59:59.000Z

433

EV Everywhere Workshop: Power Electronics and Thermal Management Breakout Session Report  

Broader source: Energy.gov [DOE]

Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL.

434

Cold side thermal energy storage system for improved operation of air cooled power plants  

E-Print Network [OSTI]

Air cooled power plants experience significant performance fluctuations as plant cooling capacity reduces due to higher daytime temperature than nighttime temperature. The purpose of this thesis is to simulate the detailed ...

Williams, Daniel David

2012-01-01T23:59:59.000Z

435

Methods of reducing emissions of nitrogen oxides at thermal power plants burning solid domestic waste  

Science Journals Connector (OSTI)

Essentially all the major methods of reducing the emissions of nitrogen oxides from flue gases employed in power generation have been tested on plants in Moscow which burn solid domestic waste for production of h...

A. N. Tugov; V. F. Moskvichev

2009-01-01T23:59:59.000Z

436

Acoustic and thermal packaging of small gas turbines for portable power  

E-Print Network [OSTI]

To meet the increasing demand for advanced portable power units, for example for use in personal electronics and robotics, a number of studies have focused on portable small gas turbines. This research is concerned with ...

Tanaka, Shinji, S.M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

437

Power Capability Estimation Accounting for Thermal and Electical Contraints of Lithium-Ion Batteries.  

E-Print Network [OSTI]

??Lithium-ion (Li-ion) batteries have become one of the most critical components in vehicle electrification due to their high specific power and energy density. The performance (more)

Kim, Youngki

2014-01-01T23:59:59.000Z

438

3-Dimensional thermal analysis and active cooling of short-length high-power fiber lasers  

Science Journals Connector (OSTI)

A fully 3-dimensional finite element model has been developed that simulates the internal temperature distribution of short-length high-power fiber lasers. We have validated the...

Li, L; Li, H; Qiu, T; Temyanko, V L; Morrell, M M; Schlzgen, A; Mafi, A; Moloney, J V; Peyghambarian, N

2005-01-01T23:59:59.000Z

439

Determining the best source of renewable electricity to power a remote site for the National Park Service  

SciTech Connect (OSTI)

Renewable energy technologies have economic and environmental advantages in many remote applications. They can provide most of the power to off-grid loads, where batteries and another power source such as a generator or a fuel cell may be required to ensure availability and feasibility. In support of the National Park Service, the Federal Energy Management Program Team at the National Renewable Energy Laboratory has evaluated several methods for providing a renewable source of electricity to a beach campsite at Kirby Cove, Marin County, California. This site requires 2 kWh per day to power a campground host in a motor home five months power year. The existing electricity line to the site is in need of replacement and the NPS is interested in evaluating more cost-effective and environmentally sensitive alternatives. Photovoltaics, tidal current, and wind power systems in combination with a back-up electric system (standard, thermoelectric, and Stirling generator and fuel cell) and an energy storage medium (battery, flywheel, and hydrogen) were analyzed. Multi-objective optimization criteria include initial cost, operating cost, emissions, maintenance requirements, and to be consistent with the NPS requirements, the system must be clean, silent, and sustainable. The best system combination was designed according to these evaluation criteria and a demonstration system is to be constructed. This paper describes the optimization procedure and design. Results indicate that a 800 Watt photovoltaic array with a hydrogen fuel cell best serves the requirements for clean, silent power. Since fuel cells are developmental, a propane generator is recommended as an alternative.

Azerbegl, R.; Mas, C.; Walker, A.; Morris, R.; Christensen, J.

1999-07-01T23:59:59.000Z

440

JV Task 46 - Development and Testing of a Thermally Integrated SOFC-Gasification System for Biomass Power Generation  

SciTech Connect (OSTI)

The Energy & Environmental Research Center has designed a biomass power system using a solid oxide fuel cell (SOFC) thermally integrated with a downdraft gasifier. In this system, the high-temperature effluent from the SOFC enables the operation of a substoichiometric air downdraft gasifier at an elevated temperature (1000 C). At this temperature, moisture in the biomass acts as an essential carbon-gasifying medium, reducing the equivalence ratio at which the gasifier can operate with complete carbon conversion. Calculations show gross conversion efficiencies up to 45% (higher heating value) for biomass moisture levels up to 40% (wt basis). Experimental work on a bench-scale gasifier demonstrated increased tar cracking within the gasifier and increased energy density of the resultant syngas. A series of experiments on wood chips demonstrated tar output in the range of 9.9 and 234 mg/m{sup 3}. Both button cells and a 100-watt stack was tested on syngas from the gasifier. Both achieved steady-state operation with a 22% and 15% drop in performance, respectively, relative to pure hydrogen. In addition, tar tolerance testing on button cells demonstrated an upper limit of tar tolerance of approximately 1%, well above the tar output of the gasifier. The predicted system efficiency was revised down to 33% gross and 27% net system efficiency because of the results of the gasifier and fuel cell experiments. These results demonstrate the feasibility and benefits of thermally integrating a gasifier and a high-temperature fuel cell in small distributed power systems.

Phillip Hutton; Nikhil Patel; Kyle Martin; Devinder Singh

2008-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "national thermal power" 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.


441

Impacts of high penetration level of fully electric vehicles charging loads on the thermal ageing of power transformers  

Science Journals Connector (OSTI)

Abstract This paper develops a methodology to determine the impacts of high penetration level of fully electric vehicles (FEVs) charging loads on the thermal ageing of power distribution transformers. The method proposed in this paper is stochastically formulated by modelling the transformer life consumption due to \\{FEVs\\} charging loads as a function of ambient temperature, start time of \\{FEVs\\} charging, initial state-of-charge and charging modes. \\{FEVs\\} loads are modelled using the results from an analytical solution that predicts a cluster of \\{FEVs\\} chargers. A UK generic LV distribution network model and real load demand data are used to simulate FEVs impacts on the thermal ageing of LV power distribution transformers. Results show that the ambient temperature, \\{FEVs\\} penetration level, and start time of charging are the main factors that affect the transformer life expectancy. It was concluded that the smart charging scenario generally shows the best outcome from the loss of life reduction perspective. Meanwhile, public charging which shifts a large percentage of charging load to commercial and industrial areas can significantly alleviate the residential transformer loading thus has little impact on the loss of life of transformers. The proposed method in this paper can be easily applied to the determination of the optimum charging time as a function of existing loads, and ambient temperature.

Kejun Qian; Chengke Zhou; Yue Yuan

2015-01-01T23:59:59.000Z

442

National Ignition Facility & Photon Science - Bringing Star Power to Earth  

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

NIF Go NIF Go LLNL Logo Lawrence Livermore National Laboratory LLNL Home NIF Home LIFE Home Jobs Site Map Contact News Press Releases In the News Status Update Media Assistance About Us National Ignition Facility About NIF How NIF Works The Seven Wonders of NIF Building NIF An Engineering Marvel NIFFY Early Light Collaborators Status Visiting NIF Missions National Security Energy for the Future Understanding the Universe People The People of NIF Awards NIF Professor Sabbatical Opportunities NIF Online Store Programs National Ignition Campaign How to Make a Star (ICF) Target Physics Target Fabrication Cryogenic Target System Diagnostics Participants Photon Science & Applications Advanced Optics Advanced Radiography Directed Energy Fusion Energy Inertial Fusion Energy How IFE Works Science at the Extremes

443

2015 National Environmental Justice Conference and Training Program Call for PowerPoint/Video Presentations  

Broader source: Energy.gov [DOE]

As part of its Youth/Emerging Leaders Summit, the 2015 National Environmental Justice Conference and Training Program (NEJC) planners are inviting individuals or groups, ages 15 to 25, to submit...

444

Sandia National Laboratories: solar  

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

Interactive Tour Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility...

445

Risk-based decision making method for maintenance policy selection of thermal power plant equipment  

Science Journals Connector (OSTI)

This study presents a decision-making method for maintenance policy selection of power plants equipment. The method is based on risk analysis concepts. The method first step consists in identifying critical equipment both for power plant operational performance and availability based on risk concepts. The second step involves the proposal of a potential maintenance policy that could be applied to critical equipment in order to increase its availability. The costs associated with each potential maintenance policy must be estimated, including the maintenance costs and the cost of failure that measures the critical equipment failure consequences for the power plant operation. Once the failure probabilities and the costs of failures are estimated, a decision-making procedure is applied to select the best maintenance policy. The decision criterion is to minimize the equipment cost of failure, considering the costs and likelihood of occurrence of failure scenarios. The method is applied to the analysis of a lubrication oil system used in gas turbines journal bearings. The turbine has more than 150MW nominal output, installed in an open cycle thermoelectric power plant. A design modification with the installation of a redundant oil pump is proposed for lubricating oil system availability improvement.

F.G. Carazas; G.F.M. Souza

2010-01-01T23:59:59.000Z

446

Thermal Control & System Integration  

Broader source: Energy.gov [DOE]

The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the development of advanced thermal control technologies....

447

Novel thermal management system design methodology for power lithium-ion battery  

Science Journals Connector (OSTI)

Abstract Battery packs conformed by large format lithium-ion cells are increasingly being adopted in hybrid and pure electric vehicles in order to use the energy more efficiently and for a better environmental performance. Safety and cycle life are two of the main concerns regarding this technology, which are closely related to the cell's operating behavior and temperature asymmetries in the system. Therefore, the temperature of the cells in battery packs needs to be controlled by thermal management systems (TMSs). In the present paper an improved design methodology for developing \\{TMSs\\} is proposed. This methodology involves the development of different mathematical models for heat generation, transmission, and dissipation and their coupling and integration in the battery pack product design methodology in order to improve the overall safety and performance. The methodology is validated by comparing simulation results with laboratory measurements on a single module of the battery pack designed at IK4-IKERLAN for a traction application. The maximum difference between model predictions and experimental temperature data is 2C. The models developed have shown potential for use in battery thermal management studies for EV/HEV applications since they allow for scalability with accuracy and reasonable simulation time.

Nerea Nieto; Luis Daz; Jon Gastelurrutia; Francisco Blanco; Juan Carlos Ramos; Alejandro Rivas

2014-01-01T23:59:59.000Z

448

National Association of Counties Webinar- Combined Heat and Power: Resiliency Strategies for Critical Facilities  

Broader source: Energy.gov [DOE]

Combined heat and power (CHP), also known as cogeneration, is a method whereby energy is produced, and excess heat from the production process can be used for heating and cooling processes....

449

Verification Survey of the Building 315 Zero Power Reactor-6 Facility, Argonne National Laboratory-East, Argonne, Illinois  

SciTech Connect (OSTI)

Oak Ridge Institute for Science and Education (ORISE) conducted independent verification radiological survey activities at Argonne National Laboratorys Building 315, Zero Power Reactor-6 facility in Argonne, Illinois. Independent verification survey activities included document and data reviews, alpha plus beta and gamma surface scans, alpha and beta surface activity measurements, and instrumentation comparisons. An interim letter report and a draft report, documenting the verification survey findings, were submitted to the DOE on November 8, 2006 and February 22, 2007, respectively (ORISE 2006b and 2007).

W. C. Adams

2007-05-25T23:59:59.000Z

450

Investigation of the November 8, 2011, Plutonium Contamination in the Zero Power Physics Reactor Facility, at the Idaho National Laboratory  

Broader source: Energy.gov [DOE]

On November 8, 2011, workers at the Idaho National Laboratory (INL) Materials and Fuels Complex (MFC) Zero Power Physics Reactor (ZPPR) Facility were packaging plutonium (Pu) reactor fuel plates. Two of the fuel storage containers had atypical labels indicating potential abnormalities with the fuel plates located inside. Upon opening one of the storage containers, the workers discovered a Pu fuel plate wrapped in plastic and tape. When the workers attempted to remove the wrapping material, an uncontrolled release of radioactive contaminants occurred, resulting in the contamination of 16 workers and the facility

451

Assessing the Power Generation Solution by Thermal-chemical Conversion of Meat Processing Industry Waste  

Science Journals Connector (OSTI)

Abstract The paper presents a waste to energy conversion solution using a pyro-air-gasification process applied to biodegradable residues from meat processing industry integrated with small scale thermodynamic cycle for power generation. The solution of air- gasification at atmospheric pressure is based on experimental research and engineering computation developed during the study. The input data, such as: waste chemical composition, low/high heating value and proximate analysis, correspond to real waste products, sampled directly from the industrial processing line. Separate drying as first stage pre-treatment and integrated partial drying inside the reactor was used. The syngas low heating value of about 4.3MJ/Nm3 is insured by its combustible fraction (H2 12.2%, CO 19.2%, CH4 1.6%). According to syngas composition the thermodynamic cycle was chosen Otto gas engine. For a given waste feed-in flow considered in our computation of about 110kg/h the power output obtained is about 50 kWel. The global energy efficiency of the unit is about 15%. The results offer answers to energy recovery waste disposal for residues with characteristics that are not suitable for classic incineration or limit the energy efficiency of the process making it non-economical (the average humidity of the raw waste is about 42% in mass). The research focused on waste to energy conversion process energy efficiency, waste neutralization and power generation.

Cosmin Marculescu; Florin Alexe

2014-01-01T23:59:59.000Z

452

An improved absorption generator for solar-thermal powered heat pumps. Part 1: Feasibility  

SciTech Connect (OSTI)

Solar heated absorption chiller installations have been, typically, very expensive for their rating. The need to keep the liquid flowing within the collectors as cool as possible to enhance collector thermal efficiency, conflicts with the need to operate the absorption chiller at a higher temperature. The compromise usually results in poor collector efficiency as well as a relatively poor specific chiller effect. The proposed vortex generator permits a heat pump to operate efficiently with relatively low temperature solar heated fluid (70--80 C). As a result, the collectors are cooler and much more efficient. In addition, the specific heat pumping capacity is about 27% greater than conventional systems operating at the same reduced generator temperatures and, therefore, a smaller chiller is required. The economic consequences of these benefits will be presented in Part 2.

Fineblum, S. [Megadyne Inc., Rochester, NY (United States)

1997-12-31T23:59:59.000Z

453

An improved absorption generator for solar-thermal powered heat pumps. Part 2: Energy and economics  

SciTech Connect (OSTI)

Solar heated absorption chiller installations have been very expensive for their rating. To enhance collector thermal efficiency the liquid flowing within the collectors must be kept as cool as possible. However, there is also a need to operate the absorption reported earlier. The compromise usually results in poor collector efficiency as well as a relatively poor specific chiller effect. The proposed vortex generator permits a heat pump to operate efficiently with relatively low temperature solar heated fluid (70--80 C). As a result, the collectors are cooler and more efficient. As noted in Part 1, the specific heat pumping capacity is about 27% greater than conventional systems operating at the same reduced generator temperatures. Therefore, a smaller, less expensive chiller is required. The reduced investment in solar arrays and absorption chillers is estimated along with a range of paybacks.

Fineblum, S. [Megadyne Inc., Rochester, NY (United States)

1997-12-31T23:59:59.000Z

454

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network [OSTI]

solar thermal and heat storage on CO 2 emissions and annual energyenergy costs, heat storage does not directly support solar thermal /energy costs. This paper focuses on analysis of the optimal interaction of solar thermal

Marnay, Chris

2010-01-01T23:59:59.000Z

455

General formula for the thermoelectric transport phenomena based on Fermi liquid theory: Thermoelectric power, Nernst coefficient, and thermal conductivity  

Science Journals Connector (OSTI)

On the basis of linear response transport theory, the general expressions for the thermoelectric transport coefficients, such as thermoelectric power (S), Nernst coefficient (?), and thermal conductivity (?), are derived by using Fermi liquid theory. The obtained expression is exact for the most singular term in terms of 1/?k* (?k* being the quasiparticle damping rate). We utilize Ward identities for the heat velocity which is derived by the local energy conservation law. The derived expressions enable us to calculate various thermoelectric transport coefficients in a systematic way, within the framework of the conserving approximation of Baym and Kadanoff. Thus the present expressions are very useful for studying strongly correlated electrons such as high-Tc superconductors, organic metals, and heavy fermion systems, where the current vertex correction (VC) is expected to play important roles. By using the derived expression, we calculate the thermal conductivity ? in a free-dispersion model up to second order with respect to the on-site Coulomb potential U. We find that it is slightly enhanced due to the VC for the heat current, although the VC for electron current makes the conductivity (?) of this system diverge, reflecting the absence of the umklapp process.

Hiroshi Kontani

2003-01-16T23:59:59.000Z

456

Fluidized bed combustor 50 MW thermal power plant, Krabi, Thailand. Feasibility study. Export trade information  

SciTech Connect (OSTI)

The report presents the results of a study prepared by Burns and Roe for the Electricity Generating Authority of Thailand to examine the technical feasibility and economic attractiveness for building a 50 MW Atmospheric Fluidized Bed Combustion lignite fired power plant at Krabi, southern Thailand. The study is divided into seven main sections, plus an executive summary and appendices: (1) Introduction; (2) Atmospheric Fluidized Bed Combustion Technology Overview; (3) Fuel and Limestone Tests; (4) Site Evaluation; (5) Station Design and Arrangements; (6) Environmental Considerations; (7) Economic Analysis.

Not Available

1993-01-01T23:59:59.000Z

457

Dual fuel study for the Liepaja Thermal Power Plant. Final report. Export trade information  

SciTech Connect (OSTI)

This study, conducted by Burns and Roe Company, was funded by the U.S. Trade and Development Agency. The report presents the results of engineering studies performed for Latvenergo-the National Electric Utility of Latvia. The work performed is a supplement to a previous study, completed in January, 1994, that defined the basic plant design and site selection for the 300 MW coal-fired plant. The current study expands on the previous work in two main areas; the technical and economic feasibility of integrating natural gas firing technologies into the plant design, and aspects of additional plant site not previously considered. The report is divided into the following sections: (1) Introduction; (2) Technical and Economic Aspects of Plant Design For Dual Capability; (3) Assessment of Natural Gas Supplies; (4) Evaluation of Candidate Sites. Appendices A-C follows.

NONE

1996-04-01T23:59:59.000Z

458

Isotopic power supplies for space and terrestrial systems: quality assurance by Sandia National Laboratories  

SciTech Connect (OSTI)

The Sandia National Laboratories participation in Quality Assurance (QA) programs for Radioisotopic Thermoelectric Generators which have been used in space and terrestrial systems over the past 15 years is summarized. Basic elements of the program are briefly described and recognition of assistance from other Sandia organizations is included. Descriptions of the various systems for which Sandia has had the QA responsibility are also presented. In addition, the outlook for Sandia participation in RTG programs for the next several years is noted.

Hannigan, R.L.; Harnar, R.R.

1981-09-01T23:59:59.000Z

459

1-Dimensional simulation of thermal annealing in a commercial nuclear power plant reactor pressure vessel wall section  

SciTech Connect (OSTI)

The objective of this work was to provide experimental heat transfer boundary condition and reactor pressure vessel (RPV) section thermal response data that can be used to benchmark computer codes that simulate thermal annealing of RPVS. This specific protect was designed to provide the Electric Power Research Institute (EPRI) with experimental data that could be used to support the development of a thermal annealing model. A secondary benefit is to provide additional experimental data (e.g., thermal response of concrete reactor cavity wall) that could be of use in an annealing demonstration project. The setup comprised a heater assembly, a 1.2 in {times} 1.2 m {times} 17.1 cm thick [4 ft {times} 4 ft {times} 6.75 in] section of an RPV (A533B ferritic steel with stainless steel cladding), a mockup of the {open_quotes}mirror{close_quotes} insulation between the RPV and the concrete reactor cavity wall, and a 25.4 cm [10 in] thick concrete wall, 2.1 in {times} 2.1 in [10 ft {times} 10 ft] square. Experiments were performed at temperature heat-up/cooldown rates of 7, 14, and 28{degrees}C/hr [12.5, 25, and 50{degrees}F/hr] as measured on the heated face. A peak temperature of 454{degrees}C [850{degrees}F] was maintained on the heated face until the concrete wall temperature reached equilibrium. Results are most representative of those RPV locations where the heat transfer would be 1-dimensional. Temperature was measured at multiple locations on the heated and unheated faces of the RPV section and the concrete wall. Incident heat flux was measured on the heated face, and absorbed heat flux estimates were generated from temperature measurements and an inverse heat conduction code. Through-wall temperature differences, concrete wall temperature response, heat flux absorbed into the RPV surface and incident on the surface are presented. All of these data are useful to modelers developing codes to simulate RPV annealing.

Nakos, J.T.; Rosinski, S.T.; Acton, R.U.

1994-11-01T23:59:59.000Z

460

Power Systems Integration Laboratory (Fact Sheet), NREL (National Renewable Energy Laboratory), Energy Systems Integration Facility (ESIF)  

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

Advanced functionality testing Advanced functionality testing (i.e., IEEE 1547.8, IEEE 2030 capability tests) * Electrical performance testing (efficiency, maximum power) * Safety testing * Model validation testing * Long duration reliability testing Partner with Us Work with NREL experts and take advantage of the state-of-the-art capabilities at the ESIF to make progress on your projects, which may range from fundamental research to applications engineering.

Note: This page contains sample records for the topic "national thermal power" 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.


461

Assessment of generic solar thermal systems for large power applications: analysis of electric power generating costs for systems larger than 10 MWe  

SciTech Connect (OSTI)

Seven generic types of collectors, together with associated subsystems for electric power generation, were considered. The collectors can be classified into three categories: (1) two-axis tracking (with compound-curvature reflecting surfaces); (2) one-axis tracking (with single-curvature reflecting surfaces); and (3) nontracking (with low-concentration reflecting surfaces). All seven collectors were analyzed in conceptual system configurations with Rankine-cycle engines. In addition, two of the collectors were analyzed with Brayton-cycle engines, and one was analyzed with a Stirling-cycle engine. With these engine options, and the consideration of both thermal and electrical storage for the Brayton-cycle central receiver, 11 systems were formulated for analysis. Conceptual designs developed for the 11 systems were based on common assumptions of available technology in the 1990 to 2000 time frame. No attempt was made to perform a detailed optimization of each conceptual design. Rather, designs best suited for a comparative evaluation of the concepts were formulated. Costs were estimated on the basis of identical assumptions, ground rules, methodologies, and unit costs of materials and labor applied uniformly to all of the concepts. The computer code SOLSTEP was used to analyze the thermodynamic performance characteristics and energy costs of the 11 concepts. Year-long simulations were performed using meteorological and insolation data for Barstow, California. Results for each concept include levelized energy costs and capacity factors for various combinations of storage capacity and collector field size.

Apley, W.J.; Bird, S.P.; Brown, D.R.; Drost, M.K.; Fort, J.A.; Garrett-Price, B.A.; Patton, W.P.; Williams, T.A.

1980-11-01T23:59:59.000Z

462

SunShot Initiative: Low-Cost Solar Thermal Collector  

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

Low-Cost Solar Thermal Collector Low-Cost Solar Thermal Collector to someone by E-mail Share SunShot Initiative: Low-Cost Solar Thermal Collector on Facebook Tweet about SunShot Initiative: Low-Cost Solar Thermal Collector on Twitter Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Google Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Delicious Rank SunShot Initiative: Low-Cost Solar Thermal Collector on Digg Find More places to share SunShot Initiative: Low-Cost Solar Thermal Collector on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment National Laboratory Research & Development

463

Improved power efficiency for very-high-temperature solar-thermal-cavity receivers  

DOE Patents [OSTI]

This invention is an improved solar energy cavity receiver for exposing materials and components to high temperatures. The receiver includes a housing having an internal reflective surface defining a cavity and having an inlet for admitting solar radiation thereto. A photothermal absorber is positiond in the cavity to receive radiation from the inlet. A reflective baffle is positioned between the absorber and the inlet to severely restrict the re-radiation of energy through the inlet. The front surface of the baffle defines a narrow annulus with the internal reflective surface of the housing. The front surface of the baffle is contoured to reflect incoming radiation onto the internal surface of the housing, from which it is reflected through the annulus and onto the front surface of the absorber. The back surface of the baffle intercepts radiation from the front of the absorber. With this arrangement, a high percentage of the solar power input is retained in the cavity; thus, high internal temperatues are attained.

McDougal, A.R.; Hale, R.R.

1982-04-14T23:59:59.000Z

464

Particle Swarm Optimization and Gradient Descent Methods for Optimization of PI Controller for AGC of Multi-area Thermal-Wind-Hydro Power Plants  

Science Journals Connector (OSTI)

The automatic generation control (AGC) of three unequal interconnected Thermal, Wind and Hydro power plant has been designed with PI controller. Further computational intelligent technique Particle Swarm Optimization and conventional Gradient Descent ... Keywords: Automatic generation control, Particle swarm optimization, Gradient Descent method, Generation rate constraint, Area control error, Wind energy conversion system

Naresh Kumari; A N. Jha

2013-04-01T23:59:59.000Z

465

High-temperature Thermal Storage System for Solar Tower Power Plants with Open-volumetric Air Receiver Simulation and Energy Balancing of a Discretized Model  

Science Journals Connector (OSTI)

Abstract This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants.

Valentina Kronhardt; Spiros Alexopoulos; Martin Reiel; Johannes Sattler; Bernhard Hoffschmidt; Matthias Hnel; Till Doerbeck

2014-01-01T23:59:59.000Z

466

NREL Provides Guidance to Improve Air Mixing and Thermal Comfort in Homes (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)  

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

research determines optimal HVAC system design for research determines optimal HVAC system design for proper air mixing and thermal comfort in homes. As U.S. homes become more energy efficient, heating, ventilation, and cooling (HVAC) systems will be downsized, and the air flow volumes required to meet heating and cooling loads may be too small to maintain uniform room air mixing-which can affect thermal comfort. Researchers at the National Renewable Energy Laboratory (NREL) evalu- ated the performance of high sidewall air supply inlets and confirmed that these systems can achieve good air mixing and provide suitable comfort levels for occupants. Using computational fluid dynamics modeling, NREL scientists tested the performance of high sidewall supply air jets over a wide range of parameters including supply air tempera-

467

Gas-phase thermal dissociation of uranium hexafluoride: Investigation by the technique of laser-powered homogeneous pyrolysis  

SciTech Connect (OSTI)

In the gas-phase, uranium hexafluoride decomposes thermally in a quasi-unimolecular reaction to yield uranium pentafluoride and atomic fluorine. We have investigated this reaction using the relatively new technique of laser-powered homogeneous pyrolysis, in which a megawatt infrared laser is used to generate short pulses of high gas temperatures under strictly homogeneous conditions. In our investigation, SiF/sub 4/ is used as the sensitizer to absorb energy from a pulsed CO/sub 2/ laser and to transfer this energy by collisions with the reactant gas. Ethyl chloride is used as an external standard ''thermometer'' gas to permit estimation of the unimolecular reaction rate constants by a relative rate approach. When UF/sub 6/ is the reactant, CF/sub 3/Cl is used as reagent to trap atomic fluorine reaction product, forming CF/sub 4/ as a stable indicator which is easily detected by infrared spectroscopy. Using these techniques, we estimate the UF/sub 6/ unimolecular reaction rate constant near the high-pressure limit. In the Appendix, we describe a computer program, written for the IBM PC, which predicts unimolecular rate constants based on the Rice-Ramsperger-Kassel theory. Parameterization of the theoretical model is discussed, and recommendations are made for ''appropriate'' input parameters for use in predicting the gas-phase unimolecular reaction rate for UF/sub 6/ as a function of temperature and gas composition and total pressure. 85 refs., 17 figs., 14 tabs.

Bostick, W.D.; McCulla, W.H.; Trowbridge, L.D.

1987-04-01T23:59:59.000Z

468

Integrated Vehicle Thermal Management Systems (VTMS) Analysis...  

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

Integrated Vehicle Thermal Management Power Electronic Thermal System Performance and Integration Characterization and Development of Advanced Heat Transfer Technologies...

469

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network [OSTI]

with or without combined heat and power (CHP) and contributein Microgrids with Combined Heat and Power Chris Marnay,Microgrids with Combined Heat and Power 1 Chris Marnay a) ,

Marnay, Chris

2010-01-01T23:59:59.000Z

470

Project Profile: High-Temperature Thermal Array for Next-Generation...  

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

Thermal Array for Next-Generation Solar Thermal Power Production Project Profile: High-Temperature Thermal Array for Next-Generation Solar Thermal Power Production Los Alamos...

471

Concentrating solar thermal power  

Science Journals Connector (OSTI)

...electricity provision from renewable energies. Drawing on almost 30 years...of European electricity from renewable energy sources in North Africa, while...increasing contribution of renewable energies. To achieve this, research...

2013-01-01T23:59:59.000Z

472

Sandia National Laboratories: Photovoltaics  

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

outfitted with photovoltaic (PV) installations are a real challenge for the nation's real estate industry, but a new tool developed by Sandia National Laboratories and Solar Power...

473

Sandia National Laboratories: PV  

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

outfitted with photovoltaic (PV) installations are a real challenge for the nation's real estate industry, but a new tool developed by Sandia National Laboratories and Solar Power...

474

Sandia National Laboratories: Solar  

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

outfitted with photovoltaic (PV) installations are a real challenge for the nation's real estate industry, but a new tool developed by Sandia National Laboratories and Solar Power...

475

Sandia National Laboratories: ACEC  

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

ACEC Sandia Solar Energy Test System Cited in National Engineering Competition On May 16, 2013, in Concentrating Solar Power, Energy, Energy Storage, Facilities, National Solar...

476

Sandia National Laboratories: Solar Energy  

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

Interactive Tour Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility...

477

Sandia National Laboratories: Solar Research  

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

Interactive Tour Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility...

478

High-Temperature Thermal Array for Next Generation Solar Thermal...  

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

Thermal Array for Next Generation Solar Thermal Power Production Award Number: DE-EE00025828 Report Date: March 15, 2013 PI: Stephen Obrey * Technical approach is focused on...

479

Techno-economic assessment of substituting natural gas based heater with thermal energy storage system in parabolic trough concentrated solar power plant  

Science Journals Connector (OSTI)

Abstract Parabolic-trough (PT) concentrated solar power (CSP) plants are very vulnerable to daily fluctuations in solar radiation. This dependence can be mitigated through a hybridization of solar energy with natural gas based heaters that supply thermal energy during the night or whenever solar irradiance level is dimmed. However, there is more sustainable way for CSP plants to avoid power-generation-outages caused by transient weather conditions, i.e. installation of thermal energy storage (TES). Such a system stores surplus thermal energy provided by solar field during sunny hours and discharges it when the sun is not available. Shams-1PT plant in Madinat-Zayed, United-Arab-Emirates (UAE) has two natural gas based components, i.e. steam-booster heater and heat transfer fluid (HTF) heater. In the current study, model of Shams-1 was developed and analyzed in the System Advisor Model (SAM) software. It has been attempted to replace the HTF heater with TES. A parametric study has been conducted to determine the size of the TES as well as the solar field such that the specified power target demand would be satisfied. The results of the parametric analysis showed that TES can't completely replace the HTF heater, within reasonable sizes. Nevertheless, consequent simulations depicts that TES increases the capacity factor on one hand and decreases fuel consumption on the other hand.

V. Poghosyan; Mohamed I. Hassan

2015-01-01T23:59:59.000Z

480

In-Depth: Cleantech at the National Labs | Department of Energy  

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

In-Depth: Cleantech at the National Labs In-Depth: Cleantech at the National Labs In-Depth: Cleantech at the National Labs January 7, 2014 - 5:30pm Addthis These solar power collection dishes at Sandia National Labs' National Solar Thermal Test Facility are capable of some of the highest solar to electricity conversion. In January 2008, this technology set a new solar-to-grid system conversion efficiency record of 31.25 percent net efficiency rate; the technology is still available to benefit the U.S. by delivering power at all hours of the day by implementing thermal energy storage. CSP with storage provides important benefits to integrate more renewable energy to our electric power supply by mitigating resource variability and satisfying peak demand after sunset. | Photo courtesy of Sandia National Laboratories.

Note: This page contains sample records for the topic "national thermal power" 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.


481

Thermal performance evaluation of SiC power devices packaging A.GRACIA, S.AZZOPARDI, E.WOIRGARD  

E-Print Network [OSTI]

impedance and the thermal resistance and also finite elements simulations. The correlation between methods. 2 High temperature device packaging concepts The selection of materials for a high temperature package (figure 1) is based on a combination of material properties: conductivity, Coefficient of Thermal

Boyer, Edmond

482

Thermal Energy Harvesting with Thermoelectrics for Self-powered Sensors: With Applications to Implantable Medical Devices, Body Sensor Networks and Aging in Place  

E-Print Network [OSTI]

thermal expansion of polymer composites filled with ceramicas thermal energy generation and refrigeration. Ceramic&

Chen, Alic

2011-01-01T23:59:59.000Z

483

Project Profile: Development and Performance Evaluation of High Temperature Concrete for Thermal Energy Storage for Solar Power Generation  

Broader source: Energy.gov [DOE]

The University of Arkansas, under the Thermal Storage FOA, is developing a novel concrete material that can withstand operating temperatures of 500C or more and is measuring the concrete properties.

484

Thermal conductivity of the insulation system of the stator winding of a high-power turbogenerator with air cooling  

Science Journals Connector (OSTI)

Values of the thermal-conductivity coefficient of specimens of the frame insulation manufactured from pre- and unimpregnated, mica-containing tapes are determined. It is established that the tape structure, te...

A. Sh. Azizov; A. M. Andreev; A. M. Kostelov

2009-03-01T23:59:59.000Z

485

Solar Thermal Reactor Materials Characterization  

SciTech Connect (OSTI)

Current research into hydrogen production through high temperature metal oxide water splitting cycles has created a need for robust high temperature materials. Such cycles are further enhanced by the use of concentrated solar energy as a power source. However, samples subjected to concentrated solar radiation exhibited lifetimes much shorter than expected. Characterization of the power and flux distributions representative of the High Flux Solar Furnace(HFSF) at the National Renewable Energy Laboratory(NREL) were compared to ray trace modeling of the facility. In addition, samples of candidate reactor materials were thermally cycled at the HFSF and tensile failure testing was performed to quantify material degradation. Thermal cycling tests have been completed on super alloy Haynes 214 samples and results indicate that maximum temperature plays a significant role in reduction of strength. The number of cycles was too small to establish long term failure trends for this material due to the high ductility of the material.

Lichty, P. R.; Scott, A. M.; Perkins, C. M.; Bingham, C.; Weimer, A. W.

2008-03-01T23:59:59.000Z

486

Wind Effect, Recirculation and Thermal Flow Field of a Direct Air?cooled Condenser for a Large Power Plant  

Science Journals Connector (OSTI)

The thermal effect experiments were carried out of a direct air?cooled system in the low speed wind tunnel. The influence of effect factors on recirculation is also discussion after that the relationship between the thermal flow field structure and recirculation ratio under the cooling tower is analyzed. At last the engineering measures to reduce or avoid recirculation are proposed. For certain conditions the experimental measurement shows close agreement with numerical values.

W. L. Zhao; P. Q. Liu; H. S. Duan; J. Y. Zhu

2011-01-01T23:59:59.000Z

487

Components Makeover Gives Concentrating Solar Power a Boost (Fact Sheet), The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Components Makeover Gives Components Makeover Gives Concentrating Solar Power a Boost Parabolic trough technology is the most mature of the various concentrating solar power (CSP) options. But scientists at the National Renewable Energy Laboratory (NREL) continue to make advances on trough systems through innovative research on various components in industrial partnerships with Acciona Solar Power, SkyFuel, Schott Solar, and others. The results are leading to improved system efficiencies and lower costs for CSP plants. Space Frames for Lower Costs To maximize the overall efficiency of the conventional glass-mirror trough system, NREL worked with Acciona Solar Power-then known as Solargenix Energy-to improve vari- ous system components. A key focus was the structural framework that holds the mirrors

488

NREL Helps Cool the Power Electronics in Electric Vehicles (Fact Sheet), The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Helps Cool the Power Helps Cool the Power Electronics in Electric Vehicles Researchers at the National Renewable Energy Laboratory (NREL) are developing and demonstrating innovative heat-transfer technologies for cooling power electronics devices in hybrid and electric vehicles. In collaboration with 3M and Wolverine Tube, Inc., NREL is using surface enhancements to dissipate heat more effectively, permitting a reduction in the size of power electronic systems and potentially reducing the overall costs of electric vehicles. Widespread use of advanced electric-drive vehicles-including electric vehicles (EVs) and hybrid electric vehicles (HEVs)-could revolutionize transportation and dramatically reduce U.S. oil consumption. Improving the cost and performance of these vehicles' electric-drive systems

489

NRELs Wind Powering America Team Helps Indiana Develop Wind Resources (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

NREL's Wind Powering NREL's Wind Powering America Team Helps Indiana Develop Wind Resources How does a state advance, in just five years, from having no wind power to having more than 1000 megawatts (MW) of installed capacity? The Wind Powering America (WPA) initiative, based at the National Renewable Energy Laboratory (NREL), employs a state-focused approach that has helped accelerate wind energy deployment in many states. One such state is Indiana, which is now home to the largest wind plant east of the Mississippi. Since 1999, WPA has helped advance technology acceptance and wind energy deployment across the United States through the formation of state wind working groups (WWGs). The WWGs facilitate workshops, manage anemometer loan programs, conduct outreach, and

490

Thermal springs list for the United States; National Oceanic and Atmospheric Administration Key to Geophysical Records Documentation No. 12  

SciTech Connect (OSTI)

The compilation has 1702 thermal spring locations in 23 of the 50 States, arranged alphabetically by State (Postal Service abbreviation) and degrees of latitude and longitude within the State. It shows spring name, surface temperature in degrees Fahrenheit and degrees Celsius; USGS Professional Paper 492 number, USGS Circular 790 number, NOAA number, north to south on each degree of latitude and longitude of the listed. USGS 1:250,000-scale (AMS) map; and the USGS topographic map coverage, 1:63360- or 1:62500-scale (15-minute) or 1:24000-scale (7.5-minute) quadrangle also included is an alphabetized list showing only the spring name and the State in which it is located. Unnamed springs are omitted. The list includes natural surface hydrothermal features: springs, pools, mud pots, mud volcanoes, geysers, fumaroles, and steam vents at temperature of 20{sup 0}C (68[sup 0}F) or greater. It does not include wells or mines, except at sites where they supplement or replace natural vents presently or recently active, or, in some places, where orifices are not distinguishable as natural or artificial. The listed springs are located on the USGS 1:250,000 (AMS) topographic maps. (MHR)

Berry, G.W.; Grim, P.J.; Ikelman, J.A. (comps.)

1980-06-01T23:59:59.000Z

491

Risk and uncertainty assessment in the development of strategy for forming the potential of dispatchable generation in the national power system of Ukraine  

Science Journals Connector (OSTI)

An inefficient generation and distribution infrastructure is a serious problem for the national power system of Ukraine. This situation makes it necessary to propose a radical new approach for developing a strategy to meet the demand for dispatchable power generation. Proposed options include: traditional centralised generation, decentralised and alternative energy sources, and use of so-called manoeuvrable loads, such as electrical heating systems. This paper describes an approach based on game theory and elements of fuzzy set theory to solve the problem, taking into account uncertainty of information and the multicriteria character of the problem.

A.V. Prakhovnik; V.A. Popov; V.F. Nakhodov

2010-01-01T23:59:59.000Z

492

NREL Triples Previous Estimates of U.S. Wind Power Potential (Fact Sheet), The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Triples Previous Estimates of Triples Previous Estimates of U.S. Wind Power Potential The National Renewable Energy Laboratory (NREL) recently released new estimates of the U.S. potential for wind-generated electricity, using advanced wind mapping and validation techniques that triple previous estimates of the size of the nation's wind resources. The new study, conducted by NREL and AWS TruePower, finds that the contiguous 48 states have the potential to generate up to 37 million gigawatt-hours annually. In comparison, the total U.S. electricity generation from all sources was roughly 4 million gigawatt-hours in 2009. Detailed state-by-state estimates of wind energy potential for the United States show the estimated average wind speeds at an 80-meter height. The wind resource maps and estimates

493

NRELs Energy-Saving Technology for Air Conditioning Cuts Peak Power Loads Without Using Harmful Refrigerants (Fact Sheet), NREL (National Renewable Energy Laboratory)  

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

DEVAP Slashes Peak Power Loads DEVAP Slashes Peak Power Loads Desiccant-enhanced evaporative (DEVAP) air-condi- tioning will provide superior comfort for commercial buildings in any climate at a small fraction of the elec- tricity costs of conventional air-conditioning equip- ment, releasing far less carbon dioxide and cutting costly peak electrical demand by an estimated 80%. Air conditioning currently consumes about 15% of the electricity generated in the United States and is a major contributor to peak electrical demand on hot summer days, which can lead to escalating power costs, brownouts, and rolling blackouts. DEVAP employs an innovative combination of air-cooling technologies to reduce energy use by up to 81%. DEVAP also shifts most of the energy needs to thermal energy sources, reducing annual electricity use by up

494

Innovative Application of Maintenance-Free Phase-Change Thermal Energy Storage for Dish Engine Solar Power Generation  

Broader source: Energy.gov [DOE]

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 2325, 2013 near Phoenix, Arizona.

495

2/1/2014 Tinywindmills mayone daypower cell phones | INDIAN POWER SECTOR http://indianpowersector.com/home/2014/01/tiny-windmills-may-one-day-power-cell-phones/ 1/8  

E-Print Network [OSTI]

Electricity Regulation RGGVY National Solar Mission R-APDRP Power Plant Thermal Power Plant Hydro Power Plant and recharge smartphone batteries. The micro-windmill is so small that 10 such windmills could be mounted, would generate the electricity that could be collected by the cell phone's battery." Figure 1: A micro

Chiao, Jung-Chih

496

Natural Gas Power  

Science Journals Connector (OSTI)

The purpose of a power plant is to generate electric power. Therefore, the key performance metric of an electric power generator is the net thermal efficiency, which is the ratio of the electric power measured...

Raub W. Smith; Dr. S. Can Glen

2012-01-01T23:59:59.000Z

497

Fuel Cell Backup Power Geographical Visualization Map (Fact Sheet), Hydrogen and Fuel Cell Technical Highlights (HFCTH), NREL (National Renewable Energy Laboratory)  

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

6740 * December 2012 6740 * December 2012 Fuel Cell Backup Power Geographical Visualization Map Team: Genevieve Saur, Jennifer Kurtz, Sam Sprik, Todd Ramsden Accomplishment: The National Renewable Energy Laboratory (NREL) developed a time-lapse geographical visualization map of early market use of fuel cells for telecommunications backup power. This map synthesizes data being analyzed by NREL's Technology Validation team for the U.S. Department of Energy (DOE) Fuel Cell Technologies Program with DOE's publically available annual summaries of electric disturbance events. 1 Context: Correlating fuel cell operation with grid outages enhances knowledge of backup system requirements and backup power operation strategies that may advance how systems are designed and how best to utilize their capabilities. NREL's

498

Thermal Transients During Processing of 3003 Al-H18 Multilayer Build by Very High-Power Ultrasonic Additive Manufacturing  

Science Journals Connector (OSTI)

Previous investigations suggested a gradient in bond microstructure along the height of a build made by very high power ultrasonic additive manufacturinga rapid prototyping process that is based...

M. R. Sriraman; Matt Gonser; Daniel Foster

2012-02-01T23:59:59.000Z

499

Effects of thermal pollution on the soft-bottoms surrounding a power station in the Canary Islands (NE Atlantic ocean)  

Science Journals Connector (OSTI)

The spatial and temporal effects of hot seawater (6070C) from a power station on nearby soft-bottom communities were ... coast of Tenerife, Canary Islands, NE Atlantic Ocean). The samples were taken during summ...

Rodrigo Riera; Jorge Nez; Daniel Martn

2011-12-01T23:59:59.000Z

500

Recycling of wasted energy : thermal to electrical energy conversion  

E-Print Network [OSTI]

power plants, solar thermal energy, geothermal energy, oceanpower plants, distributed solar thermal energy, geo/ocean-power plants [59]. Other LGH sources include solar thermal energy, geo-thermal energy, ocean

Lim, Hyuck

2011-01-01T23:59:59.000Z