National Library of Energy BETA

Sample records for reverse air ec

  1. Membranes for Reverse-Organic Air Separations | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Membranes for Reverse-Organic Air Separations Membranes for Reverse-Organic Air Separations New Membranes Use Reverse Separation to Reduce Pollutant Emissions Many industrial applications need a process to separate pollutants known as volatile organic compounds (VOCs) from air in order to protect the environment and save energy. One such application is the venting of vapor from underground storage tanks (UST) used in gasoline storage and dispensing. These vapors, which can build up and create

  2. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    China Lake Naval Air Station admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar ... China Lake, CA was a chosen site for one Plug Power GenSysTM 5CS-5kW PEM fuel cell. The ...

  3. Damage imaging in a laminated composite plate using an air-coupled time reversal mirror

    DOE PAGES [OSTI]

    Le Bas, P. -Y.; Remillieux, M. C.; Pieczonka, L.; Ten Cate, J. A.; Anderson, B. E.; Ulrich, T. J.

    2015-11-03

    We demonstrate the possibility of selectively imaging the features of a barely visible impact damage in a laminated composite plate by using an air-coupled time reversal mirror. The mirror consists of a number of piezoelectric transducers affixed to wedges of power law profiles, which act as unconventional matching layers. The transducers are enclosed in a hollow reverberant cavity with an opening to allow progressive emission of the ultrasonic wave field towards the composite plate. The principle of time reversal is used to focus elastic waves at each point of a scanning grid spanning the surface of the plate, thus allowingmore » localized inspection at each of these points. The proposed device and signal processing removes the need to be in direct contact with the plate and reveals the same features as vibrothermography and more features than a C-scan. More importantly, this device can decouple the features of the defect according to their orientation, by selectively focusing vector components of motion into the object, through air. For instance, a delamination can be imaged in one experiment using out-of-plane focusing, whereas a crack can be imaged in a separate experiment using in-plane focusing. As a result, this capability, inherited from the principle of time reversal, cannot be found in conventional air-coupled transducers.« less

  4. Damage imaging in a laminated composite plate using an air-coupled time reversal mirror

    SciTech Connect

    Le Bas, P. -Y.; Remillieux, M. C.; Pieczonka, L.; Ten Cate, J. A.; Anderson, B. E.; Ulrich, T. J.

    2015-11-03

    We demonstrate the possibility of selectively imaging the features of a barely visible impact damage in a laminated composite plate by using an air-coupled time reversal mirror. The mirror consists of a number of piezoelectric transducers affixed to wedges of power law profiles, which act as unconventional matching layers. The transducers are enclosed in a hollow reverberant cavity with an opening to allow progressive emission of the ultrasonic wave field towards the composite plate. The principle of time reversal is used to focus elastic waves at each point of a scanning grid spanning the surface of the plate, thus allowing localized inspection at each of these points. The proposed device and signal processing removes the need to be in direct contact with the plate and reveals the same features as vibrothermography and more features than a C-scan. More importantly, this device can decouple the features of the defect according to their orientation, by selectively focusing vector components of motion into the object, through air. For instance, a delamination can be imaged in one experiment using out-of-plane focusing, whereas a crack can be imaged in a separate experiment using in-plane focusing. As a result, this capability, inherited from the principle of time reversal, cannot be found in conventional air-coupled transducers.

  5. Reversible monolayer-to-crystalline phase transition in amphiphilic silsesquioxane at the air-water interface

    SciTech Connect

    Banerjee, R.; Sanyal, M. K.; Bera, M. K.; Gibaud, A.; Lin, B.; Meron, M.

    2015-02-17

    We report on the counter intuitive reversible crystallisation of two-dimensional monolayer of Trisilanolisobutyl Polyhedral Oligomeric SilSesquioxane (TBPOSS) on water surface using synchrotron x-ray scattering measurements. Amphiphilic TBPOSS form rugged monolayers and Grazing Incidence X-ray Scattering (GIXS) measurements reveal that the in-plane inter-particle correlation peaks, characteristic of two-dimensional system, observed before transition is replaced by intense localized spots after transition. The measured x-ray scattering data of the non-equilibrium crystalline phase on the air-water interface could be explained with a model that assumes periodic stacking of the TBPOSS dimers. These crystalline stacking relaxes upon decompression and the TBPOSS layer retains its initial monolayer state. The existence of these crystals in compressed phase is confirmed by atomic force microscopy measurements by lifting the materials on a solid substrate.

  6. Reversible monolayer-to-crystalline phase transition in amphiphilic silsesquioxane at the air-water interface

    DOE PAGES [OSTI]

    Banerjee, R.; Sanyal, M. K.; Bera, M. K.; Gibaud, A.; Lin, B.; Meron, M.

    2015-02-17

    We report on the counter intuitive reversible crystallisation of two-dimensional monolayer of Trisilanolisobutyl Polyhedral Oligomeric SilSesquioxane (TBPOSS) on water surface using synchrotron x-ray scattering measurements. Amphiphilic TBPOSS form rugged monolayers and Grazing Incidence X-ray Scattering (GIXS) measurements reveal that the in-plane inter-particle correlation peaks, characteristic of two-dimensional system, observed before transition is replaced by intense localized spots after transition. The measured x-ray scattering data of the non-equilibrium crystalline phase on the air-water interface could be explained with a model that assumes periodic stacking of the TBPOSS dimers. These crystalline stacking relaxes upon decompression and the TBPOSS layer retains its initialmore » monolayer state. The existence of these crystals in compressed phase is confirmed by atomic force microscopy measurements by lifting the materials on a solid substrate.« less

  7. EC Video Library

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Video Library - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee ... Twitter Google + Vimeo Newsletter Signup SlideShare EC Video Library HomeSecure and ...

  8. LANSCE | Users | LUG | LUG EC

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Executive Committee Message from the LUG EC Regarding 2015 Elections Dear Users, Thank you very much for participating in the recent email vote regarding the formation of an...

  9. EC-130H Simulator Training Operations Facility

    Building Catalog

    Tucson, AZ The EC-130H Simulator Training Operations Facility at Davis-Monthan Air Force Base serves the mission of the 42nd Electronic Combat Squadron by providing state-of-the-art training facilities for students, instructors and support staff. Three simulator bays house one flight deck simulator and two mission crew simulators. Administrative and support areas are provided for day-to-day operations. These areas include offices, conference rooms, break rooms, and briefing rooms. 03/11/2016 - 12:56

  10. Argonne's SpEC Module

    SciTech Connect

    Harper, Jason

    2014-05-05

    Jason Harper, an electrical engineer in Argonne National Laboratory's EV-Smart Grid Interoperability Center, discusses his SpEC Module invention that will enable fast charging of electric vehicles in under 15 minutes. The module has been licensed to BTCPower.

  11. Argonne's SpEC Module

    ScienceCinema

    Harper, Jason

    2014-06-05

    Jason Harper, an electrical engineer in Argonne National Laboratory's EV-Smart Grid Interoperability Center, discusses his SpEC Module invention that will enable fast charging of electric vehicles in under 15 minutes. The module has been licensed to BTCPower.

  12. EC

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas ...

  13. EC

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Batteries Electric Drive Systems Hydrogen Materials & Components Compatibility Hydrogen ...

  14. EC

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water ...

  15. SSRLUO-EC Meetings Schedule

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Minutes | Members | Home | Activism | Past Committees SSRLUO Executive Committee Meetings All users are encouraged to participate in SSRL Users' Organization activities. Meetings of the SSRL Users' Organization Executive Committee (SSRLUO-EC) include open sessions that all members of the SSRL user community are invited to attend. Meetings will be held about every four months. If you have issues that you would like to present to the committee or have added as a discussion item on the next agenda,

  16. 2015 LUG EC Meeting | Agenda

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    5 LUG EC Meeting | Agenda Tuesday, April 7 | LANSCE (TA-53) Building 622 | Lujan Center Auditorium Please note: Presentations from LANSCE facilities are expected to be a brief overview of issues during the year and any new developments planned, with a focus on users. Plan on a 10-15 minute presentation with 5-10 minutes left for discussion. 8:00 - 9:00am Arrival and Informal Discussion 9:00 - 9:15am Overview of LANSCE and the User Group for 2015 K. Schoenberg 9:15 - 9:40am MARIE and the NNSA

  17. Argonne's SpEC Module | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    SpEC Module Share Topic Energy Energy efficiency Vehicles

  18. Energy Curtailment Specialists ECS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Specialists (ECS) Place: Buffalo, New York Zip: NY 14225 Product: Buffalo-based demand response providers. Coordinates: 42.88544, -78.878464 Show Map Loading map......

  19. Apparatus and method for controlling the rotary airlocks in a coal processing system by reversing the motor current rotating the air lock

    DOEpatents

    Groombridge, Clifton E.

    1996-01-01

    An improvement to a coal processing system where hard materials found in the coal may cause jamming of either inflow or outflow rotary airlocks, each driven by a reversible motor. The instantaneous current used by the motor is continually monitored and compared to a predetermined value. If an overcurrent condition occurs, indicating a jamming of the airlock, a controller means starts a "soft" reverse rotation of the motor thereby clearing the jamming. Three patterns of the motor reversal are provided.

  20. EC-Web Project Plan | Department of Energy

    Energy Saver

    EC-Web Project Plan EC-Web Project Plan The Electronic Commerce World Wide Web (EC-WEB) Project Plan, from an actual DOE software engineering project, can be used as a template to...

  1. EC Transmission Line Risk Identification and Analysis

    SciTech Connect

    Bigelow, Tim S

    2012-04-01

    The purpose of this document is to assist in evaluating and planning for the cost, schedule, and technical project risks associated with the delivery and operation of the EC (Electron cyclotron) transmission line system. In general, the major risks that are anticipated to be encountered during the project delivery phase associated with the implementation of the Procurement Arrangement for the EC transmission line system are associated with: (1) Undefined or changing requirements (e.g., functional or regulatory requirements) (2) Underperformance of prototype, first unit, or production components during testing (3) Unavailability of qualified vendors for critical components Technical risks associated with the design and operation of the system are also identified.

  2. On the neutrinoless double ?{sup +}/EC decays

    SciTech Connect

    Suhonen, Jouni

    2013-12-30

    The neutrinoless double positron-emission/electron-capture (0??{sup +}/EC) decays are studied for the magnitudes of the involved nuclear matrix elements (NMEs). Decays to the ground state, 0{sub gs}{sup +}, and excited 0{sup +} states are discussed. The participant many-body wave functions are evaluated in the framework of the quasiparticle random-phase approximation (QRPA). Effective, G-matrix-derived nuclear forces are used in realistic single-particle model spaces. The channels ?{sup +}?{sup +}, ?{sup +}EC, and the resonant neutrinoless double electron capture (R0?ECEC) are discussed.

  3. Time reversal communication system

    DOEpatents

    Candy, James V.; Meyer, Alan W.

    2008-12-02

    A system of transmitting a signal through a channel medium comprises digitizing the signal, time-reversing the digitized signal, and transmitting the signal through the channel medium. The channel medium may be air, earth, water, tissue, metal, and/or non-metal.

  4. Preliminary conceptual design of DEMO EC system

    SciTech Connect

    Garavaglia, S. Bin, W.; Bruschi, A.; Granucci, G.; Moro, A.; Rispoli, N.; Grossetti, G.; Strauss, D.; Jelonnek, J.; Tran, Q. M.; Franke, T.

    2015-12-10

    In the framework of EUROfusion Consortium the Work Package Heating and Current Drive addresses the engineering design and R&D for the electron cyclotron, ion cyclotron and neutral beam systems. This paper reports the activities performed in 2014, focusing on the work done regarding the input for the conceptual design of the EC system, particularly for the gyrotron, the transmission line and the launchers.

  5. 15.10.5 RH ECS Atwater - JCAP

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    JCAP's Harry Atwater on Critical Energy Issues (ECS Podcast) JCAP Director Harry Atwater in conversation with the Electrochemical Society's Executive Director Roque Calvo on the eve of the fifth international ECS Electrochemical Energy Summit. Related Link: ECS Blog (http://www.ecsblog.org/harry-atwater-on-critical-energy-issues/)

  6. EC-Web Project Plan | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EC-Web Project Plan EC-Web Project Plan The Electronic Commerce World Wide Web (EC-WEB) Project Plan, from an actual DOE software engineering project, can be used as a template to facilitate the creation of the project plan for your particular project. EC-WEB is a Lotus Notes based DOE business application. EC-Web Project Plan (273.42 KB) More Documents & Publications Audit Report: AP-FS-97-02 CITSS Project Plan CITSS Configurable Item List: COTS Software

  7. Summary of ECE presentations at EC-18

    DOE PAGES [OSTI]

    Taylor, G.

    2015-03-12

    There were nine ECE and one EBE presentation at EC-18. Four of the presentations were on various aspects of ECE on ITER. The ITER ECE diagnostic has entered an important detailed preliminary design phase and faces several design challenges in the next 2-3 years. Most of the other ECE presentations at the workshop were focused on applications of ECE diagnostics to plasma measurements, rather than improvements in technology, although it was apparent that heterodyne receiver technology continues to improve. CECE, ECE imaging and EBE imaging are increasingly providing valuable insights into plasma behavior that is important to understand if futuremore » burning plasma devices, such as ITER, FNSF and DEMO, are to be successful.« less

  8. Summary of ECE presentations at EC-18

    SciTech Connect

    Taylor, G.

    2015-03-12

    There were nine ECE and one EBE presentation at EC-18. Four of the presentations were on various aspects of ECE on ITER. The ITER ECE diagnostic has entered an important detailed preliminary design phase and faces several design challenges in the next 2-3 years. Most of the other ECE presentations at the workshop were focused on applications of ECE diagnostics to plasma measurements, rather than improvements in technology, although it was apparent that heterodyne receiver technology continues to improve. CECE, ECE imaging and EBE imaging are increasingly providing valuable insights into plasma behavior that is important to understand if future burning plasma devices, such as ITER, FNSF and DEMO, are to be successful.

  9. SSRLUO-EC Minutes 5-23-01

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    May 23, 2001 SSRLUO-EC Contact List Previous SSRLUO Minutes Attendees: Paul Foster (Chair), Patrick Allen, Lipika Basumallick, Corwin Booth, Bruce Clemens, Cathy Knotts (SSRL ...

  10. Renzo Tomellini, EC Directorate General for Research and innovation...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ...Animateurs: Jeff Skeer, DOE Office of Policy and International Affairs and Renzo Tomellini, EC Directorate General for Research and Innovation Edward Jones, Lawrence Livermore ...

  11. Enhancing Capacity for Low Emission Development Strategies (EC...

    OpenEI (Open Energy Information) [EERE & EIA]

    (EC-LEDS): Distributed Generation AgencyCompany Organization: National Renewable Energy Laboratory Sector: Energy Topics: Low emission development planning, -LEDS Resource...

  12. EC proposals still have a long way to go

    SciTech Connect

    Young, I.

    1993-01-27

    The European Commission's plans to create a single market within the European Community (EC) - supported by most of Europe's chemical industry - still appear far from being realized. When the commission agreed on draft directives to pen up europe's gas and eletricity networks to greater competition, they were scheduled to be implemented on January 1, 1993. However, following intense lobbying by energy suppliers throughout the EC, the European Energy Council, meeting on November 30, 1992, asked the commission to modify its plans. The UK government, during its EC presidency in second-half 1992, campaigned hard to ensure that progress was made toward energy liberalization but met strong opposition from other EC members, including France, the Netherlands, Italy, and Spain. The main bone of contention is third-party access (TPA), which would allow larger energy users to buy their electricity and gas from suppliers anywhere in the EC, seen by consumers as the key element in the commission proposals. The Energy Council, at its November meeting, made particular note of the reservations that had been expressed about the proposed TPA mechanisms.

  13. 229th Electrochemical Society (ECS) Meeting (San Diego, CA) - JCAP

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    229th Electrochemical Society (ECS) Meeting (San Diego, CA) 229th Electrochemical Society (ECS) Meeting (San Diego, CA) Sun, May 29, 2016 12:00pm 12:00 Thu, Jun 2, 2016 1:00pm 13:00 San Diego, CA USA Joel A. Haber, "Development of Solar Fuels Photoanodes through Combinatorial Integration of Ni-La-Co-Ce Oxide and Ni-Fe-Co-Ce Oxide Catalysts on BiVO4" The development of an efficient photoanode remains the primary materials challenge in the establishment of a scalable technology for solar

  14. Quantification of Electrochemical Nanoscale Processes in Lithium Batteries By OperandoEC-(S)TEM

    SciTech Connect

    Mehdi, Beata L.; Qian, Jiangfeng; Nasybulin, Eduard; Welch, David A.; Park, Chiwoo; Faller, Roland; Mehta, Hardeep S.; Henderson, Wesley A.; Xu, Wu; Evans, James E.; Liu, Jun; Zhang, Jiguang; Mueller, Karl T.; Browning, Nigel D.

    2015-07-27

    Lithium (Li)-ion batteries are currently used for a wide variety of portable electronic devices, electric vehicles and renewable energy applications. In addition, extensive worldwide research efforts are now being devoted to more advanced “beyond Li-ion” battery chemistries - such as lithium-sulfur (Li-S) and lithium-air (Li-O2) - in which the carbon anode is replaced with Li metal. However, the practical application of Li metal anode systems has been highly problematic. The main challenges involve controlling the formation of a solid-electrolyte interphase (SEI) layer and the suppression of Li dendrite growth during the charge/discharge process (achieving “dendrite-free” cycling). The SEI layer formation continuously consumes the electrolyte components creating highly resistive layer, which leads to the rapid decrease of cycling performance and degradation of the Li anode. The growth of Li metal dendrites at the anode contributes to rapid capacity fading (the presence of “dead Li” created during the discharge leads to an increased overpotential) and, in the case of continuous growth, leads to internal short circuits and extreme safety issues. Here we demonstrate the application of an operando electrochemical scanning transmission electron microscopy (ec-(S)TEM) cell to study the SEI layer formation and the initial stages of Li dendrite growth - the goal is to develop a mechanism for mitigating the degradation processes and increasing safety. Bright field (BF) STEM images in Figure 1 A-C show Li metal deposition and dissolution processes at the interface between the Pt working electrode and the lithium hexafluorophosphate (LiPF6) in propylene carbonate (PC) electrolyte during three charge/discharge cycles. A contrast reversal caused by Li metal being lighter/less dense than surrounding electrolyte (Li appears brighter than the background in BF STEM images) allows Li to be uniquely identified from the other components in the system - the only solid

  15. ARM - Campaign Instrument - ec-convair580-bulk

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govInstrumentsec-convair580-bulk Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Environment Canada Convair 580 Bulk Parameters (EC-CONVAIR580-BULK) Instrument Categories Aerosols, Airborne Observations, Cloud Properties Campaigns Indirect and Semi-Direct Aerosol Campaign (ISDAC) [ Download Data ] North Slope Alaska, 2008.04.01 - 2008.04.30 Primary Measurements Taken The following measurements are those considered

  16. Mexico-EC-LEDS in the Agriculture Sector | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    EC-LEDS in the Agriculture Sector Jump to: navigation, search Name Mexico-EC-LEDS in the Agriculture Sector AgencyCompany Organization United States Department of Agriculture,...

  17. LANSCE | Users | LUG | EC Meeting March 23, 2012

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    EC Onsite Meeting | Tentative Agenda Wednesday, May 25, 2016 LANSCE (TA-53) Building 622 | Lujan Center Auditorium Please note: Presentations and formal materials from LANSCE facilities are not necessary. However be prepared to discuss, expect to give a brief overview of issues during the year, and any new developments planned, with a focus on users. If presenting, plan on a 5-10 minute presentation with 10-15 minutes left for discussion. Conference Call Line: Local/LANL number: 505-606-1220

  18. LANSCE | Users | LUG | EC Meeting March 23, 2012

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3 LUG EC Onsite Meeting | Agenda - Tentative Monday, March 11 LANSCE (TA-53) Building 1 | Conference Room 234 A Please note: Presentations from LANSCE facilities are expected to be a brief overview of issues during the year and any new developments planned, with a focus on users. Plan on a 10-15 minute presentation with 5-10 minutes left for discussion. 8:00-9:00 Arrival and informal discussion 9:00-9:30 Welcome and report from LANSCE Division Director (Kurt Schoenberg) 9:35-9:55 Report from

  19. LANSCE | Users | LUG | EC Meeting March 23, 2012

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4 LUG EC Onsite Meeting | Agenda Friday, March 14 LANSCE (TA-53) Building 1 | Conference Room A-234 Please note: Presentations and formal materials from LANSCE facilities are not necessary. However be prepared to discuss, expect to give a brief overview of issues during the year, and any new developments planned, with a focus on users. If presenting, plan on a 5-10 minute presentation with 10-15 minutes left for discussion. 8:00-9:00am Arrival and informal discussion 9:00-9:10am LANSCE User

  20. Compressed Air

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lighting Compressed Air ESUE Motors Federal Agriculture Compressed Air Compressed Air Roadmap The Bonneville Power Administration created the roadmap to help utilities find energy...

  1. Reversible Acid Gas Capture

    ScienceCinema

    Dave Heldebrant

    2012-12-31

    Pacific Northwest National Laboratory scientist David Heldebrant demonstrates how a new process called reversible acid gas capture works to pull carbon dioxide out of power plant emissions.

  2. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality To preserve our existing wilderness-area air quality, LANL implements a conscientious program of air monitoring. March 17, 2015 Real-time data monitoring ...

  3. Completion Report for Well ER-EC-1

    SciTech Connect

    Townsend, M.J.

    2000-12-01

    Well ER-EC-1 was drilled for the U.S. Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the spring of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to the depth 675.1 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,524.0 meters. A preliminary composite, static, water level was measured at the depth of approximately 566.3 meters prior to installation of the completion string. One completion string with three isolated, slotted intervals was installed in the well. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters and 31 sidewall samples taken at various depths below 680 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well penetrated Tertiary-age lava and tuff of the Timber Mountain Group, the Paintbrush Group, the Calico Hills Formation, the Crater Flat Group, and the Volcanics of Quartz Mountain. The preliminary geologic interpretation of data from Well ER-EC-1 indicates the presence of a structural trough or bench filled with a thick section of post-Rainier Mesa lava. These data also suggest that this site is located on a buried structural ridge that may separate the Silent Canyon and Timber Mountain caldera complexes.

  4. COLLOQUIUM: Functional Capabilities and Design of the ITER EC H&CD System |

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Princeton Plasma Physics Lab May 17, 2016, 4:15pm to 5:30pm Colloquia MBG Auditorium, PPPL (284 cap.) COLLOQUIUM: Functional Capabilities and Design of the ITER EC H&CD System Dr. Mark Henderson ITER Organization A 24MW Electron Cyclotron (EC) system operating at 170 GHz and 3600 s pulse length is to be installed on ITER. The EC plant shall deliver 20MW of this power to the plasma for Heating and Current Drive (H&CD) applications. The EC system is designed for plasma initiation,

  5. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  6. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public.

  7. Air Quality

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Air Quality Air Quality Tour The Laboratory calculates the dose to the maximally exposed individual (MEI) to determine effects of Laboratory operations on the public. Open full...

  8. Completion Report for Well ER-EC-2A

    SciTech Connect

    M. J. Townsend

    2002-03-01

    Well ER-EC-2A was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Operations Office, in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in January and February of 2000 as part of a hydrogeologic investigation program in the Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 412.9 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,516.1 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 228.0 meters, approximately two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in this report. These are based on composite drill cuttings collected every 3 meters, and 81 sidewall samples taken at various depths below 212 meters, supplemented by geophysical log data. Detailed petrographic, chemical, and mineralogical studies of rock samples were conducted on 30 samples. The well was collared in rhyolite lava and penetrated Tertiary-age lava and tuff of the Volcanics of Fortymile Canyon and the Timber Mountain Group. The preliminary geologic interpretation of borehole data indicates that this well was drilled within the margins of the buried Rainier Mesa and Ammonia Tanks calderas, and that caldera collapse in this area was deeper than expected, resulting in a section of Volcanics of Fortymile Canyon (caldera-filling deposit) that is much thicker than expected.

  9. Completion Report for Well ER-EC-5

    SciTech Connect

    Bechtel Nevada

    2004-10-01

    Well ER-EC-5 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 342.6 meters below ground surface. The borehole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 762.0 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 309.9 meters, 40 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 18 sidewall samples taken at various depths below 349.6 meters, supplemented by geophysical log data and results from detailed chemical and mineralogical analyses of rock samples. The well penetrated Tertiary-age tuffs of the Thirsty Canyon Group, caldera moat-filling sedimentary deposits, lava of the Beatty Wash Formation, and landslide breccia and tuffs of the Timber Mountain Group. The well reached total depth in welded ashflow tuff of the Ammonia Tanks Tuff after penetrating 440.1 meters of this unit, which is also the main water-producing unit in the well. The geologic interpretation of data from this well constrains the western margin of the Ammonia Tanks caldera to the west of the well location.

  10. Completion Report for Well ER-EC-4

    SciTech Connect

    M. J. Townsend

    2000-09-01

    Well ER-EC-4 was drilled for the US Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S Department of Energy's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 263.7 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,062.8 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 228.3 meters, two months after installation of the completion string. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters, and 35 sidewall samples taken at various depths below 286.5 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well was collared in basalt and penetrated Tertiary-age lava and tuff of the Thirsty Canyon Group, the Volcanics of Fortymile Canyon, and the Timber Mountain Group. The preliminary geologic interpretation of data from this well helps pinpoint the location of the western margin of the Timber Mountain caldera complex in the southern Nevada volcanic field.

  11. Completion Report for Well ER-EC-7

    SciTech Connect

    Bechtel Nevada

    2004-10-01

    Well ER-EC-7 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 265.8 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 422.5 meters. The planned depth of 762 meters was not reached due to borehole stability problems. One completion string with two isolated slotted intervals was installed in the well. A preliminary composite, static, water level was measured at the depth of 227.8 meters, 20 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on composite drill cuttings, supplemented by geophysical log data, and incorporating data from detailed chemical and mineralogical studies of rock samples. Beneath a thin alluvial deposit, the well penetrated 410 meters of lava and bedded tuff of the Volcanics of Fortymile Canyon Group, deposited in the Timber Mountain caldera moat after caldera collapse. The geologic interpretation of data from this well provides information on the thickness, lithologic composition, and hydrogeologic character of moat-filling rocks in the southern portion of the Timber Mountain caldera complex in the southwestern Nevada volcanic field.

  12. Completion report for Well ER-EC-6

    SciTech Connect

    M. J. Townsend

    2000-05-01

    Well ER-EC-6 was drilled for the U.S. Department of Energy, Nevada Operations Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the spring of 1999 as part of the DOE's hydrogeologic investigation well program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 66-centimeter surface hole was drilled and cased off to the depth of 485.1 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 1,524.0 meters. A preliminary composite, static, water level was measured at the depth of approximately 434.6 meters prior to installation of the completion string. One completion string with four isolated, slotted intervals was installed in the well. Detailed lithologic descriptions with preliminary stratigraphic assignments are included in the report. These are based on composite drill cuttings collected every 3 meters and 33 sidewall samples taken at various depths below 504.4 meters, supplemented by geophysical log data. Detailed chemical and mineralogical studies of rock samples are in progress. The well penetrated Tertiary-age lava and tuff of the Timber Mountain Group, the Paintbrush Group, the Calico Hills Formation, and the Volcanics of Quartz Mountain. Intense hydrothermal alteration was observed below the depth of 640 m. The preliminary geologic interpretation indicates that this site may be located on a buried structural ridge that separates the Silent Canyon and Timber Mountain caldera complexes.

  13. Completion Report for Well ER-EC-8

    SciTech Connect

    Bechtel Nevada

    2004-10-01

    Well ER-EC-8 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada Test Site, Nye County, Nevada. This well was drilled in the summer of 1999 as part of the U.S. Department of Energy's hydrogeologic investigation program in the Western Pahute Mesa - Oasis Valley region just west of the Nevada Test Site. A 44.5-centimeter surface hole was drilled and cased off to a depth of 129.8 meters below the surface. The hole diameter was then decreased to 31.1 centimeters for drilling to a total depth of 609.6 meters. One completion string with three isolated slotted intervals was installed in the well. A preliminary composite, static water level was measured at the depth of 98.4 meters, 24 days after installation of the completion string. Detailed lithologic descriptions with stratigraphic assignments are included in the report. These are based on evaluation of composite drill cuttings collected every 3 meters, and 20 sidewall samples taken at various depths below 157.9 meters, supplemented by geophysical log data and results of detailed chemical and mineralogical studies of rock samples. Drilling began in Tertiary-age tuff of the Thirsty Canyon Group, and penetrated tuffs of the Beatty Wash Formation, tuff of Buttonhook Wash, and the upper portion of the Ammonia Tanks Tuff. The geologic interpretation of data from this well helps define the location of the western margin of the Timber Mountain caldera complex in the southwestern Nevada volcanic field. Geologic and hydrologic data from the well will aid in development of models to predict groundwater flow and contaminant migration within and near the Nevada Test Site.

  14. Air Sealing

    SciTech Connect

    2000-02-01

    This fact sheet describes ventilation and the importance of sealing air leaks and providing controlled ventilation.

  15. Reversible Solid Oxide Electrolysis

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reversible Solid Oxide Electrolysis Randy Petri Director Product Development & Federal Programs Electrolytic Hydrogen Production Workshop DOE Fuel Cell Technologies Office Hosted by: National Renewable Energy Laboratory, Golden, Colorado February 27th and 28th, 2014 FCE Acquires VPS * FuelCell Energy fully acquired the shares of Versa Power Systems on December 20, 2012. Prior to this, FuelCell Energy owned approximately 39% of Versa "We view solid oxide fuel cell technology as

  16. Air filter

    SciTech Connect

    Jackson, R.E.; Sparks, J.E.

    1981-03-03

    An air filter is described that has a counter rotating drum, i.e., the rotation of the drum is opposite the tangential intake of air. The intake air has about 1 lb of rock wool fibers per 107 cu. ft. of air sometimes at about 100% relative humidity. The fibers are doffed from the drum by suction nozzle which are adjacent to the drum at the bottom of the filter housing. The drum screen is cleaned by periodically jetting hot dry air at 120 psig through the screen into the suction nozzles.

  17. USACE EC 1165-2-216 Policy and Procedural Guidance for Processing...

    OpenEI (Open Energy Information) [EERE & EIA]

    USACE EC 1165-2-216 Policy and Procedural Guidance for Processing Requests to Alter USACE Civil Works Projects Pursuant to 33 USC 408 Jump to: navigation, search OpenEI Reference...

  18. Simulation studies of nucleation of ferroelectric polarization reversal.

    SciTech Connect

    Brennecka, Geoffrey L.; Winchester, Benjamin Michael

    2014-08-01

    Electric field-induced reversal of spontaneous polarization is the defining characteristic of a ferroelectric material, but the process(es) and mechanism(s) associated with the initial nucleation of reverse-polarity domains are poorly understood. This report describes studies carried out using phase field modeling of LiTaO3, a relatively simple prototype ferroelectric material, in order to explore the effects of either mechanical deformation or optically-induced free charges on nucleation and resulting domain configuration during field-induced polarization reversal. Conditions were selected to approximate as closely as feasible those of accompanying experimental work in order to provide not only support for the experimental work but also ensure that additional experimental validation of the simulations could be carried out in the future. Phase field simulations strongly support surface mechanical damage/deformation as effective for dramatically reducing the overall coercive field (Ec) via local field enhancements. Further, optically-nucleated polarization reversal appears to occur via stabilization of latent nuclei via the charge screening effects of free charges.

  19. Reversal bending fatigue testing

    SciTech Connect

    Wang, Jy-An John; Wang, Hong; Tan, Ting

    2014-10-21

    Embodiments for apparatuses for testing reversal bending fatigue in an elongated beam are disclosed. Embodiments are configured to be coupled to first and second end portions of the beam and to apply a bending moment to the beam and create a pure bending condition in an intermediate portion of the beam. Embodiments are further configured to cyclically alternate the direction of the bending moment applied to the beam such that the intermediate portion of the beam cyclically bends in opposite directions in a pure bending condition.

  20. Reversible brazing process

    DOEpatents

    Pierce, Jim D.; Stephens, John J.; Walker, Charles A.

    1999-01-01

    A method of reversibly brazing surfaces together. An interface is affixed to each surface. The interfaces can be affixed by processes such as mechanical joining, welding, or brazing. The two interfaces are then brazed together using a brazing process that does not defeat the surface to interface joint. Interfaces of materials such as Ni-200 can be affixed to metallic surfaces by welding or by brazing with a first braze alloy. The Ni-200 interfaces can then be brazed together using a second braze alloy. The second braze alloy can be chosen so that it minimally alters the properties of the interfaces to allow multiple braze, heat and disassemble, rebraze cycles.

  1. Air-to-air turbocharged air cooling versus air-to-water turbocharged air cooling

    SciTech Connect

    Moranne, J.-P.; Lukas, J.J.

    1984-01-01

    In Europe, turbocharged air in diesel engines used in on-road vehicles is cooled only by air. It is expected that by 1990, ten to twelve percent of European heavy trucks with diesel engines will cool turbocharged air by water. Air-to-air turbocharges air cooling is reviewed and the evolution of air-to-water turbocharged air cooling presented before the two systems are compared.

  2. air force

    National Nuclear Security Administration (NNSA)

    en NNSA, Air Force Complete Successful B61-12 Life Extension Program Development Flight Test at Tonopah Test Range http:nnsa.energy.govmediaroompressreleases...

  3. Reverse Osmosis Optimization

    SciTech Connect

    2013-08-01

    This technology evaluation was prepared by Pacific Northwest National Laboratory on behalf of the U.S. Department of Energy’s Federal Energy Management Program (FEMP). The technology evaluation assesses techniques for optimizing reverse osmosis (RO) systems to increase RO system performance and water efficiency. This evaluation provides a general description of RO systems, the influence of RO systems on water use, and key areas where RO systems can be optimized to reduce water and energy consumption. The evaluation is intended to help facility managers at Federal sites understand the basic concepts of the RO process and system optimization options, enabling them to make informed decisions during the system design process for either new projects or recommissioning of existing equipment. This evaluation is focused on commercial-sized RO systems generally treating more than 80 gallons per hour.

  4. Reverse Osmosis Optimization

    SciTech Connect

    McMordie Stoughton, Kate; Duan, Xiaoli; Wendel, Emily M.

    2013-08-26

    This technology evaluation was prepared by Pacific Northwest National Laboratory on behalf of the U.S. Department of Energy’s Federal Energy Management Program (FEMP). ¬The technology evaluation assesses techniques for optimizing reverse osmosis (RO) systems to increase RO system performance and water efficiency. This evaluation provides a general description of RO systems, the influence of RO systems on water use, and key areas where RO systems can be optimized to reduce water and energy consumption. The evaluation is intended to help facility managers at Federal sites understand the basic concepts of the RO process and system optimization options, enabling them to make informed decisions during the system design process for either new projects or recommissioning of existing equipment. This evaluation is focused on commercial-sized RO systems generally treating more than 80 gallons per hour.¬

  5. Multiple stimulus reversible hydrogels

    DOEpatents

    Gutowska, Anna; Krzyminski, Karol J.

    2006-04-25

    A polymeric solution capable of gelling upon exposure to a critical minimum value of a plurality of environmental stimuli is disclosed. The polymeric solution may be an aqueous solution utilized in vivo and capable of having the gelation reversed if at least one of the stimuli fall below, or outside the range of, the critical minimum value. The aqueous polymeric solution can be used either in industrial or pharmaceutical environments. In the medical environment, the aqueous polymeric solution is provided with either a chemical or radioisotopic therapeutic agent for delivery to a specific body part. The primary advantage of the process is that exposure to one environmental stimuli alone will not cause gelation, thereby enabling the therapeutic agent to be conducted through the body for relatively long distances without gelation occurring.

  6. Multiple stimulus reversible hydrogels

    DOEpatents

    Gutowska, Anna; Krzyminski, Karol J.

    2003-12-09

    A polymeric solution capable of gelling upon exposure to a critical minimum value of a plurality of environmental stimuli is disclosed. The polymeric solution may be an aqueous solution utilized in vivo and capable of having the gelation reversed if at least one of the stimuli fall below, or outside the range of, the critical minimum value. The aqueous polymeric solution can be used either in industrial or pharmaceutical environments. In the medical environment, the aqueous polymeric solution is provided with either a chemical or radioisotopic therapeutic agent for delivery to a specific body part. The primary advantage of the process is that exposure to one environmental stimuli alone will not cause gelation, thereby enabling the therapeutic agent to be conducted through the body for relatively long distances without gelation occurring.

  7. Reverse slapper detonator

    DOEpatents

    Weingart, Richard C.

    1990-01-01

    A reverse slapper detonator (70), and methodology related thereto, are provided. The detonator (70) is adapted to be driven by a pulse of electric power from an external source (80). A conductor (20) is disposed along the top (14), side (18), and bottom (16) surfaces of a sheetlike insulator (12). Part of the conductor (20) comprises a bridge (28), and an aperture (30) is positioned within the conductor (20), with the bridge (28) and the aperture (30) located on opposite sides of the insulator (12). A barrel (40) and related explosive charge (50) are positioned adjacent to and in alignment with the aperture (30), and the bridge (28) is buttressed with a backing layer (60). When the electric power pulse vaporizes the bridge (28), a portion of the insulator (12) is propelled through the aperture (30) and barrel (40), and against the explosive charge (50), thereby detonating it.

  8. Reverse photoacoustic standoff spectroscopy

    SciTech Connect

    Van Neste, Charles W.; Senesac, Lawrence R.; Thundat, Thomas G.

    2011-04-12

    A system and method are disclosed for generating a reversed photoacoustic spectrum at a greater distance. A source may emit a beam to a target and a detector measures signals generated as a result of the beam being emitted on the target. By emitting a chopped/pulsed light beam to the target, it may be possible to determine the target's optical absorbance by monitoring the intensity of light collected at the detector at different wavelengths. As the wavelength of light is changed, the target may absorb or reject each optical frequency. Rejection may increase the intensity at the sensing element and absorption may decrease the intensity. Accordingly, an identifying spectrum of the target may be made with the intensity variation of the detector as a function of illuminating wavelength.

  9. Supercritical fluid reverse micelle systems

    DOEpatents

    Fulton, John L.; Smith, Richard D.

    1992-01-01

    of 1 ) United States Patent 5,158,704 Fulton ,   et al. October 27, 1992 Supercritical fluid reverse micelle systems

  10. Reversible micromachining locator

    DOEpatents

    Salzer, L.J.; Foreman, L.R.

    1999-08-31

    This invention provides a device which includes a locator, a kinematic mount positioned on a conventional tooling machine, a part carrier disposed on the locator and a retainer ring. The locator has disposed therein a plurality of steel balls, placed in an equidistant position circumferentially around the locator. The kinematic mount includes a plurality of magnets which are in registry with the steel balls on the locator. In operation, a blank part to be machined is placed between a surface of a locator and the retainer ring (fitting within the part carrier). When the locator (with a blank part to be machined) is coupled to the kinematic mount, the part is thus exposed for the desired machining process. Because the locator is removably attachable to the kinematic mount, it can easily be removed from the mount, reversed, and reinserted onto the mount for additional machining. Further, the locator can likewise be removed from the mount and placed onto another tooling machine having a properly aligned kinematic mount. Because of the unique design and use of magnetic forces of the present invention, positioning errors of less than 0.25 micrometer for each machining process can be achieved. 7 figs.

  11. Reversible micromachining locator

    DOEpatents

    Salzer, Leander J.; Foreman, Larry R.

    1999-01-01

    This invention provides a device which includes a locator, a kinematic mount positioned on a conventional tooling machine, a part carrier disposed on the locator and a retainer ring. The locator has disposed therein a plurality of steel balls, placed in an equidistant position circumferentially around the locator. The kinematic mount includes a plurality of magnets which are in registry with the steel balls on the locator. In operation, a blank part to be machined is placed between a surface of a locator and the retainer ring (fitting within the part carrier). When the locator (with a blank part to be machined) is coupled to the kinematic mount, the part is thus exposed for the desired machining process. Because the locator is removably attachable to the kinematic mount, it can easily be removed from the mount, reversed, and reinserted onto the mount for additional machining. Further, the locator can likewise be removed from the mount and placed onto another tooling machine having a properly aligned kinematic mount. Because of the unique design and use of magnetic forces of the present invention, positioning errors of less than 0.25 micrometer for each machining process can be achieved.

  12. 2015 Electrochemical Energy Summit at the 228th ECS Meeting (Phoenix, AZ)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    - JCAP 2015 Electrochemical Energy Summit at the 228th ECS Meeting (Phoenix, AZ) 2015 Electrochemical Energy Summit at the 228th ECS Meeting (Phoenix, AZ) Sun, Oct 11, 2015 4:30pm 16:30 Fri, Oct 16, 2015 5:30pm 17:30 Phoenix, AZ USA Harry Atwater, "Artificial Photosynthesis: Progress and Prospects" View presentation here Matthew McDowell, "New Advances in Stabilizing High Efficiency Semiconductors for Use in Solar Fuels Applications" View presentation here Ian Sharp,

  13. Minimum 186 Basin levels required for operation of ECS and CWS pumps

    SciTech Connect

    Reeves, K.K.; Barbour, K.L.

    1992-10-01

    Operation of K Reactor with a cooling tower requires that 186 Basin loss of inventory transients be considered during Design Basis Accident analyses requiring ECS injection, such as the LOCA and LOPA. Since the cooling tower systems are not considered safety systems, credit is not taken for their continued operation during a LOPA or LOCA even though they would likely continue to operate as designed. Without the continued circulation of cooling water to the 186 Basin by the cooling tower pumps, the 186 Basin will lose inventory until additional make-up can be obtained from the river water supply system. Increasing the make-up to the 186 Basin from the river water system may require the opening of manually operated valves, the starting of additional river water pumps, and adjustments of the flow to L Area. In the time required for these actions a loss of basin inventory could occur. The ECS and CWS pumps are supplied by the 186 Basin. A reduction in the basin level will result in decreased pump suction head. This reduction in suction head will result in decreased output from the pumps and, if severe enough, could lead to pump cavitation for some configurations. The subject of this report is the minimum 186 Basin level required to prevent ECS and CWS pump cavitation. The reduction in ECS flow due to a reduced 186 Basin level without cavitation is part of a separate study.

  14. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (6434 downloads) ... Energy (DOE) price target of 1Wp by 2020 for utility-scale electricity generation. ...

  15. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (6434 downloads) ... In this study we evaluate current heliostat technology and estimate a price of 126m2 ...

  16. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Distribution System Secondary Circuit Parameter Estimation for Model Calibration admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final ...

  17. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Interconnection Risk Analysis through Distribution System Impact Signatures and Feeder Zones admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration ...

  18. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    On the Path to SunShot: Emerging Issues and Challenges in Integrating Solar with the Distribution System admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid ...

  19. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Distribution System Modeling Workshop: Welcome and Purpose admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida ...

  20. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Variability of photovoltaic (PV) power output is a potential concern to utilities because it can lead to voltage changes on the distribution system and have other adverse impacts ...

  1. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... Solar Power (CSP) and other renewable energy technologies. ...

  2. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... mechanisms to develop technologies to improve battery ...

  3. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy Conversion (MEC) Technologies admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ...

  4. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... Energy Conversion (MEC) Technologies (910) ORNL ADCP ...

  5. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... Distributed Energy Technologies Laboratory (DETL), ...

  6. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Solar Power Technologies admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ...

  7. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... and advanced storage technologies from cell to MW systems ...

  8. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... Distributed Energy Technologies Laboratory (DETL), ...

  9. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... and Fast Reactor Technologies location Busan, Korea ...

  10. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... to New Photovoltaic Technologies (937) Exploring ...

  11. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... marine and hydrokinetic technologies and wave and current ...

  12. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... Current energy conversion technologies are a class of marine ...

  13. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... for Application to New Photovoltaic Technologies (1418

  14. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... Energy storage technologies can transform electric systems ...

  15. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    to New Photovoltaic Technologies admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ...

  16. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Central Receiver Technologies: A Status Report admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ...

  17. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... Endicott Interconnect Technologies, EMCORE, International ...

  18. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... of storage technologies in the grid, and ...

  19. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... will vary among module technologies because of differences ...

  20. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... references, processes, technologies, and policies to ...

  1. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ... Finally, models of emerging technologies that can improve ...

  2. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... concepts, ideas, and technologies will be needed to ...

  3. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... acceptance of current and emerging solar power technologies.

  4. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... outdoor IV data measured on different module technologies. ...

  5. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... techniques from various microsystem technologies. ...

  6. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... available measurement technologies and deployment methods, ...

  7. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ... (999) Central Receiver Technologies: A Status Report (442) ...

  8. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... Conventional central receiver technologies are limited to ...

  9. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... to maturing solar technologies where staff work ...

  10. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ... Walck Sandia's role in shale gas production technologies

  11. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lighting Technologies, Costs & Energy Demand: Global ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7588 ...

  12. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Emerging Renewable Technologies admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7587 ...

  13. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Water Power Technologies and Opportunities admin ... Final Report of the Florida Solar Energy Center Team ... (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7586 ...

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    ... The second and third sets of tests evaluated the FPA power output during operational wave environments. The objective of this report is to provide experimental data sets for ...

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    PTO-SIM: A Power Performance Module for the Open-Source Wave Energy Converter Code WEC-Sim admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: ...

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    Date added May 13, 2014 Downloaded 110 times Category Energy Security, Renewable Energy, Resource Assessment, Water Power, Wave Energy report-id SAND2014-1805 author A. Dallman, V. ...

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    enabled photovoltaics: 14.9% efficient 14 mm thick crystalline silicon solar cell admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final ...

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    energy, interim storage of spent nuclear fuel (SNF) will continue to increase, and as ... by 2020. Safety, security, and safeguards concerns for such interim storage ...

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    All Publications Go Back Order by: Title Date added Download count A toolkit for ... and Fuel Cells Program (1273) HyRAM 1.0.1 (421) HyRAM: A methodology and toolkit for ...

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    ... This data informs the MHK device and component design and estimation of performance curves, annual energy production (AEP) and cost of energy (COE). Velocity data obtained using ...

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    ... provides asset owners the cost-that is, loss in several dimensions-associated with an electronic power disruption; the CMT also provides an estimation of the consequences of a ...

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    ... and hard-rock unsaturated (waste package sizes up to 32-PWR) - Thermal analysis for mined, "open" concepts - Cost estimation for 5 disposal concepts - Summary and conclusions

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    (4152 downloads) SWiFT Overview Presentation (3481 downloads) Valuation of Solar Photovoltaic Systems Using a Discounted Cash Flow Approach (3474 downloads) Solar Energy ...

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    122 times Category Energy Security, Manual, Photovoltaic, Renewable Energy, Solar Energy, Technology Validation event 2nd World Conference and Exhibition on Photovoltaic Solar ...

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    Filename sand20020131.pdf filesize 486.02 kB Version 1 date September 2003 Downloaded 95 times Category Cyber Security, ECIS, Technical Paper year 2002 author Philip L. Campbell ...

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    of the 100kW Demand Response Inverter (2548 downloads) Software and Codes for Analysis of Concentrating Solar Power Technologies (2051 downloads) Advanced Energy Industries, Inc. ...

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    Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida Solar ... Operations and maintenance costs for offshore wind plants are projected to ...

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    Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida Solar ... These methods have the potential to reduce many system level costs of current PV ...

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    Review: Reducing Soft Costs of Rooftop Solar Installations Attributed to Structural Considerations admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration ...

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    F: PerformanceReliabilityCosts admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida Solar Energy Center Team ...

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    Veeco: Research Driving Down the Costs of Efficient LED Lighting admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the ...

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    Study of the Use of Saline Formations for Combined Thermoelectric Power Plant Water Needs and Carbon Sequestration at a Regional Scale: Phase III Report admin 2016-04-18T20:58:24+0...

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    ... of Future Climate Variability on ERCOT Thermoelectric Power Generation (813) Impact of Future Climate Variability on ERCOT Thermoelectric Power Generation: In Support of ...

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    ... Thermoelectric Power Plant Water Needs and Carbon Sequestration at a Regional-Scale: Phase I Report (519) Study of the Use of Saline Formations for Combined Thermoelectric ...

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    Thermoelectric Power Plant Water Needs and Carbon Sequestration at a Regional-Scale: Phase I Report (519) Study of the Use of Saline Formations for Combined Thermoelectric ...

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    Electrical Power :Volume II - The Economic Optimization Model (33) Economic Analysis of Darrieus Vertical Axis Wind Turbine Systems for the Generation of Utility Grid Electrical ...

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    ElectricalSimulationsofSeriesandParallelPVArc-Faults(Presentation)admin2016-04-14T2... All Publications Placeholder Download Filename 39thPVSCElectricalSimulationsofSeriesa...

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    Team (11567 downloads) Modeling System Losses in PVsyst ... a Discounted Cash Flow Approach (3476 downloads) Solar ... The conceptual model and scenario for radionuclide release ...

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    a Discounted Cash Flow Approach (3474 downloads) Solar ... Energy Security, Manual, Modeling and Analysis, Nuclear ... convert a target radionuclide into a less volatile or ...

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    (3309 downloads) Solar Energy Grid Integration Systems: Final Report of the Princeton ... and the Environment (3121 downloads) Market Valuation Perspectives for Photovoltaic ...

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    Market Valuation Perspectives for Photovoltaic Systems admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida Solar ...

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    (3308 downloads) Solar Energy Grid Integration Systems: Final Report of the Princeton ... and the Environment (3120 downloads) Market Valuation Perspectives for Photovoltaic ...

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    The Solar Energy Grid Integration Systems (SEGIS) initiative is a three-year, three-stage project that includes conceptual design and market analysis (Stage 1), prototype ...

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    project is organized according to eight project tasks focused on the development of the EWDSS. The initial foundation for this tool is Sandia National Laboratories (Sandia) ...

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    Errors in Solar Power Plant Variability Simulation Methods admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida ...

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    ... This paper describes the development of a high-fidelity computational fluid dynamics (CFD) model of a three-blade horizontal axis current turbine. The CFD model was developed using ...

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    Sampling, Crack Growth Modeling and Experimental PlansBryan admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of ...

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    Hyperspectral Imaging admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid ... All Publications Placeholder Download Filename Hyperspectral-Imaging.pdf filesize 1.49 MB ...

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    Implementation of the National Desalination and Water Purification admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the ...

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    ... Dynamic Simulation Modeling: Middle Rio Grande (67) Cooperative Water Resources (74) Desalination and Water Purification Technology Roadmap (65) Desalination and Water ...

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    Tularosa Basin National Desalination Research Facility Study admin 2016-04-18T20:58:24+00:... 1 Date added November 12, 2014 Downloaded 184 times Category Treatment Technology, Water

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    T. Klise, Vincent C. Tidwell, Marissa D. Reno, Barbara D. Moreland, Katie M. Zemlick, Jordan Macknick report-id SAND2013-5238 As large utility-scale solar photovoltaic (PV) and ...

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    They are large, widely dispersed, mostly privately owned systems operated under a mixture of federal, state and local government departments, laws and regulations. While there ...

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    ... Dimensional analysis provides scaling laws that are used to upscale model test information ... As indicated by Neary and Sale (2010), the inflow characteristics of natural rivers, tidal ...

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    ... a standards-based solution through committees such as the IEC TC 57 WG 15, the IEEE Substation Committee, and the IEEE P1547-related activity on communications and controls. ...

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7679 downloads) ... using a wide range of PV technologies, system topologies, loads and noise sources. ...

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7679 downloads) ... AFCIs robustly detect arcing conditions while avoiding false trips from noise sources

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7678 downloads) ... provided a number of prerecorded inverter and arc-fault noise data sets to them. ...

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7678 downloads) ... Arc-fault detection algorithms often utilize the AC noise on the PV string to ...

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7678 downloads) ... Many AFDs use AC noise on the DC side of the PV system to detect arcing conditions. ...

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    And Design Tool (NuMAD v2.0) for Wind Turbine Blades: User's Guide (7678 downloads) ... However, these benefits are negated if teh arcing noise typically used for arc fault ...

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    (2378 downloads) Sandia's Stationary Energy Storage Research Program Fact Sheet (2372 downloads) ... The database contains reference information and abstracts to over 10,000 technical ...

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    Corrosion and Erosion Behavior in Supercritical CO2 Power Cyclesadmin2016-04-18T20:58:24+00:00 ... Advanced Nuclear Energy, Brayton Cycle, Energy Efficiency, Nuclear Energy ...

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    Key Management for SCADAadmin2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid ... In particular we discuss a method of managing cryptographic keys and give sample ...

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    Systems: Final Report of the Princeton Power Systems Development of the 100kW Demand Response Inverter (3115 downloads) The Goals of Energy Policy: Professional Perspectives on ...

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    Systems: Final Report of the Princeton Power Systems Development of the 100kW Demand Response Inverter (3086 downloads) The Goals of Energy Policy: Professional Perspectives on ...

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    D. Todd Griffith, Dewey H. Hodges report-id SAND2013-9901 year 2013 O shore wind power ... O shore plants require signi cant balance of station costs associated with each turbine, ...

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    Nuclear Energy Safety year 2012 report-id SAND2012-6173 author Randall Gauntt, Donald ... In response to the accident at the Fukushima Daiichi nuclear power station in Japan, the ...

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    Design and On-Sun Testing of a Solid Particle Receiver Prototypeadmin2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final Report of the Florida ...

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    ... Thermoelectric Power Plant Water Needs and Carbon Sequestration at a Regional-Scale: Phase I Report (494) Study of the Use of Saline Formations for Combined Thermoelectric ...

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    Energy event 35th IEEE Photovoltaic Specialists Conference ... study the shape, size and velocity of cloud shadows. This data, along with time-correlated PV array output data, will ...

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    Blink, Harris Greenberg, Mark Sutton & Massimiliano Fratoni, LLNL Joe Carter & Mark Dupont, Savannah River Rob Howard, ORNL report-id SAND2011-6202 location SNL, Albuquerque, ...

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    ... We then apply lessons learned from Sandia experience on the Waste Isolation Pilot Project and the Yucca Mountain Project to develop a disposal strategy should a shale repository be ...

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    New Mexico Recent Events - What Has Changed? 1. Decision not to dispose of fuel at Yucca Mountain -Store in place until alternative fuel cycle options are evaluated -Evaluate ...

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    CostPerformance Tradeoffs for Reflectors used in Solar Concentrating Dish Systems admin 2016-04-18T20:58:24+00:00 Popular Downloads Solar Energy Grid Integration Systems: Final ...

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    The highest efficiency cell had a lateral size of 500 m and a conversion efficiency of 10%, open circuit voltage of 0.9 V and a current density of 14.9 mAcm2 under one-sun ...

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    ... results, to measured on-sun module output, and found biases in the predicted performance. We hypothesize that these biases result from the uniform cell temperatures during ...

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    ... tracking systems designed for flat-plate, one-sun modules. The demonstration module was comprised of an array of 216 cellmicrolens units and was manufactured using standard ...

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    ... laterally) cells with either one-sun or micro-optics concentration ... the constraints of lattice matching or series connections between different cell types. ...

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  3. Supercritical fluid reverse micelle separation

    DOEpatents

    Fulton, John L.; Smith, Richard D.

    1993-01-01

    A method of separating solute material from a polar fluid in a first polar fluid phase is provided. The method comprises combining a polar fluid, a second fluid that is a gas at standard temperature and pressure and has a critical density, and a surfactant. The solute material is dissolved in the polar fluid to define the first polar fluid phase. The combined polar and second fluids, surfactant, and solute material dissolved in the polar fluid is maintained under near critical or supercritical temperature and pressure conditions such that the density of the second fluid exceeds the critical density thereof. In this way, a reverse micelle system defining a reverse micelle solvent is formed which comprises a continuous phase in the second fluid and a plurality of reverse micelles dispersed in the continuous phase. The solute material is dissolved in the polar fluid and is in chemical equilibrium with the reverse micelles. The first polar fluid phase and the continuous phase are immiscible. The reverse micelles each comprise a dynamic aggregate of surfactant molecules surrounding a core of the polar fluid. The reverse micelle solvent has a polar fluid-to-surfactant molar ratio W, which can vary over a range having a maximum ratio W.sub.o that determines the maximum size of the reverse micelles. The maximum ratio W.sub.o of the reverse micelle solvent is then varied, and the solute material from the first polar fluid phase is transported into the reverse micelles in the continuous phase at an extraction efficiency determined by the critical or supercritical conditions.

  4. Supercritical fluid reverse micelle separation

    DOEpatents

    Fulton, J.L.; Smith, R.D.

    1993-11-30

    A method of separating solute material from a polar fluid in a first polar fluid phase is provided. The method comprises combining a polar fluid, a second fluid that is a gas at standard temperature and pressure and has a critical density, and a surfactant. The solute material is dissolved in the polar fluid to define the first polar fluid phase. The combined polar and second fluids, surfactant, and solute material dissolved in the polar fluid is maintained under near critical or supercritical temperature and pressure conditions such that the density of the second fluid exceeds the critical density thereof. In this way, a reverse micelle system defining a reverse micelle solvent is formed which comprises a continuous phase in the second fluid and a plurality of reverse micelles dispersed in the continuous phase. The solute material is dissolved in the polar fluid and is in chemical equilibrium with the reverse micelles. The first polar fluid phase and the continuous phase are immiscible. The reverse micelles each comprise a dynamic aggregate of surfactant molecules surrounding a core of the polar fluid. The reverse micelle solvent has a polar fluid-to-surfactant molar ratio W, which can vary over a range having a maximum ratio W[sub o] that determines the maximum size of the reverse micelles. The maximum ratio W[sub o] of the reverse micelle solvent is then varied, and the solute material from the first polar fluid phase is transported into the reverse micelles in the continuous phase at an extraction efficiency determined by the critical or supercritical conditions. 27 figures.

  5. Demonstration of sawtooth period control with EC waves in KSTAR plasma

    DOE PAGES [OSTI]

    Jeong, J. H.; Bae, Y. S.; Joung, M.; Kim, D.; Goodman, T. P.; Sauter, O.; Sakamoto, K.; Kajiwara, K.; Oda, Y.; Kwak, J. G.; et al

    2015-03-12

    The sawtooth period control in tokamak is important issue in recent years because the sawtooth crash can trigger TM/NTM instabilities and drive plasmas unstable. The control of sawtooth period by the modification of local current profile near the q=1 surface using ECCD has been demonstrated in a number of tokamaks [1, 2] including KSTAR. As a result, developing techniques to control the sawtooth period as a way of controlling the onset of NTM has been an important area of research in recent years [3]. In 2012 KSTAR plasma campaign, the sawtooth period control is carried out by the different depositionmore » position of EC waves across the q=1 surface. The sawtooth period is shortened by on-axis co-ECCD (destabilization), and the stabilization of the sawtooth is also observed by off-axis co-ECCD at outside q=1 surface. In 2013 KSTAR plasma campaign, the sawtooth locking experiment with periodic forcing of 170 GHz EC wave is carried out to control the sawtooth period. The optimal target position which lengthens the sawtooth period is investigated by performing a scan of EC beam deposition position nearby q=1 surface at the toroidal magnetic field of 2.9 T and plasma current of 0.7 MA. The sawtooth locking by the modulated EC beam is successfully demonstrated as in [3-5] with the scan of modulation-frequency and duty-ratio at the low beta (βN~0.5) plasma. In this paper, the sawteeth behavior by the location of EC beam and the preliminary result of the sawtooth locking experiments in KSTAR will be presented.« less

  6. Plasma rotation and NTM onset driven by central EC deposition in TCV tokamak

    SciTech Connect

    Nowak, S.; Lazzaro, E. [Istituto di Fisica del Plasma CNR, Euratom Association, 20125 Milano (Italy); Sauter, O.; Canal, G.; Duval, B.; Federspiel, L.; Karpushov, A. N.; Kim, D.; Reimerders, H.; Rossel, J.; Testa, D.; Wagner, D. [Ecole Polytechnique Fdrale de Lausanne (EPFL), Centre de Recherches en Physique des Plasmas (CRPP), Association EURATOM-Confederation Suisse, 1015 Lausanne (Switzerland); Raju, D. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat (India); Collaboration: TCV Team

    2014-02-12

    The effects of the central electron cyclotron heating (ECH) and current drive (ECCD) on the spontaneous plasma rotation and on the presence of Tearing Modes (TM), observed in the TCV tokamak[1], were recently investigated as an interplay between the toroidal velocity and NTM onset in absence of sawteeth, ELMs and error fields [23]. In a set of reproducible TCV discharges (I{sub p}? ?150 kA, B{sub t}? ?1.4 T, ne,{sub av?} 1.5 10{sup 19} m{sup ?3}, T{sub e}? 3 keV and T{sub i}?0.25 keV, q{sub 95}?5.8) with both pure EC heating and current drive the cnt-Ip toroidal velocity was observed to be reduced with subsequent co-Ip appearance of 3/2 and 2/1 modes during the ramp up EC phases. The understanding of the capability of the on-axis EC power to modify the rotation profiles before and after the TM onset and of the sudden disappearance of 3/2 mode when 2/1 starts is the main purpose of this work. The velocity profile modifications are due to a direct effect of the EC absorbed power and also related to some variation of the perpendicular diffusion of the toroidal momentum and to magnetic braking effects of the kind of neoclassical toroidal viscosity (NTV) due to the NTM resonant field perturbations associated to the presence of TM. Numerical investigations are performed using a 1D toroidal momentum balance equation including contributions by external sources, as EC power, and NTV torques. Furthermore, the combined evolution of the 3/2 and 2/1 modes requires considering also coupling effects included in a generalized Rutherford equation for the modelling of the TM time growth.

  7. Demonstration of sawtooth period control with EC waves in KSTAR plasma

    SciTech Connect

    Jeong, J. H.; Bae, Y. S.; Joung, M.; Kim, D.; Goodman, T. P.; Sauter, O.; Sakamoto, K.; Kajiwara, K.; Oda, Y.; Kwak, J. G.; Namkung, W.; Cho, M. H.; Park, H.; Hosea, J.; Ellis, R.

    2015-03-12

    The sawtooth period control in tokamak is important issue in recent years because the sawtooth crash can trigger TM/NTM instabilities and drive plasmas unstable. The control of sawtooth period by the modification of local current profile near the q=1 surface using ECCD has been demonstrated in a number of tokamaks [1, 2] including KSTAR. As a result, developing techniques to control the sawtooth period as a way of controlling the onset of NTM has been an important area of research in recent years [3]. In 2012 KSTAR plasma campaign, the sawtooth period control is carried out by the different deposition position of EC waves across the q=1 surface. The sawtooth period is shortened by on-axis co-ECCD (destabilization), and the stabilization of the sawtooth is also observed by off-axis co-ECCD at outside q=1 surface. In 2013 KSTAR plasma campaign, the sawtooth locking experiment with periodic forcing of 170 GHz EC wave is carried out to control the sawtooth period. The optimal target position which lengthens the sawtooth period is investigated by performing a scan of EC beam deposition position nearby q=1 surface at the toroidal magnetic field of 2.9 T and plasma current of 0.7 MA. The sawtooth locking by the modulated EC beam is successfully demonstrated as in [3-5] with the scan of modulation-frequency and duty-ratio at the low beta (βN~0.5) plasma. In this paper, the sawteeth behavior by the location of EC beam and the preliminary result of the sawtooth locking experiments in KSTAR will be presented.

  8. CW EC-QCL-based sensor for simultaneous detection of H2O, HDO, N2O and CH4 using multi-pass absorption spectroscopy

    DOE PAGES [OSTI]

    Yu, Yajun; Sanchez, Nancy P.; Griffin, Robert J.; Tittel, Frank K.

    2016-05-03

    A sensor system based on a continuous wave, external-cavity quantum-cascade laser (CW EC-QCL) was demonstrated for simultaneous detection of atmospheric H2O, HDO, N2O and CH4 using a compact, dense pattern multi-pass gas cell with an effective path-length of 57.6 m. The EC-QCL with a mode-hop-free spectral range of 1225-1285 cm-1 operating at similar to 7.8 mu m was scanned covering four neighboring absorption lines, for H2O at 1281.161 cm-1, HDO at 1281.455 cm-1, N2O at 1281.53 cm-1 and CH4 at 1281.61 cm-1. A first-harmonic-normalized wavelength modulation spectroscopy with second-harmonic detection (WMS-2f/1f) strategy was employed for data processing. An Allan-Werle deviationmore » analysis indicated that minimum detection limits of 1.77 ppmv for H2O, 3.92 ppbv for HDO, 1.43 ppbv for N2O, and 2.2 ppbv for CH4 were achieved with integration times of 50-s, 50-s, 100-s and 129-s, respectively. In conclusion, experimental measurements of ambient air are also reported.« less

  9. Rotation Reversal Bifurcation and Energy Confinement Saturation...

    Office of Scientific and Technical Information (OSTI)

    Rotation Reversal Bifurcation and Energy Confinement Saturation in Tokamak OhmicL-Mode Plasmas Citation Details In-Document Search Title: Rotation Reversal Bifurcation and Energy...

  10. Direct Imaging of Asymmetric Magnetization Reversal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Direct Imaging of Asymmetric Magnetization Reversal Direct Imaging of Asymmetric Magnetization Reversal Print Wednesday, 28 September 2005 00:00 The phenomenon of exchange bias has...

  11. Reversible Fuel Cells Workshop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The workshop was divided into two sessions-a PEM reversible fuel cell session and a reversible SOFC... critical issues, materials and systems barriers, and manufacturing issues ...

  12. Reversible window for solar heating and cooling

    SciTech Connect

    Bliamptis, E.E.

    1982-12-28

    A reversible, variably inclinable window with controlled convection for mounting in a window casing in a building for solar heating and cooling comprising a window frame having top and bottom portions and being adapted to pivot about a horizontal axis intermediate said portions, a first window panel mounted in said frame capable of transmitting both visible and infrared radiation, a second window panel mounted in said frame, substantially parallel and in a spaced relationship to said first window panel and being capable of transmitting visible radiation and blocking infrared radiation, and openings proximate to said top and bottom portions for providing air passageways to space between said first and second window panels such that rotation of the assembly about its horizontal axis can place either of the panels toward the outside of the building for selective reflection or absorbtion of the radiant energy to enable heating or cooling of the interior space between the panels in order to utilize the properties of the air caused to pass therethrough; and sealing means at the sides of the window casing for sealing against the window frame while allowing for optimization of the inclination angle of the window with respect to radiant energy impinging thereon.

  13. Smartgrid EV Communication module (SpEC) SAE DC Charging Digital

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Communication Controller - Energy Innovation Portal Electricity Transmission Electricity Transmission Find More Like This Return to Search Smartgrid EV Communication module (SpEC) SAE DC Charging Digital Communication Controller Argonne National Laboratory Contact ANL About This Technology Technology Marketing Summary One of the major drawbacks of electric vehicles (EVs) is the long period of time required to recharge EV batteries. While regular Alternating Current (AC) charging systems are

  14. Maintaining System Air Quality

    Office of Energy Efficiency and Renewable Energy (EERE)

    This tip sheet discusses how to maintain air quality in compressed air systems through proper use of equipment.

  15. Tips: Air Conditioners

    Energy.gov [DOE]

    How to operate your air conditioner efficiently, or consider alternatives to air conditioning that can cool effectively in many climates.

  16. Data:12a45141-7972-4ec8-a2dc-37fedc8133d3 | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    ec8-a2dc-37fedc8133d3 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic...

  17. Microsoft Word - DOE-ID-13-008 MIT EC B2-5.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Improvements include, but are not limited to, replacementupgrade of control valves, in-core monitoring devices, facility air filtration systems, or substation transformers or ...

  18. Analysis of Well ER-EC-6 Testing, Western Pahute Mesa - Oasis Valley FY 2000 Testing Program

    SciTech Connect

    2002-09-30

    This report documents the analysis of the data collected for Well ER-EC-6 during the Western Pahute Mesa-Oasis Valley (WPM-OV) well development and testing program that was conducted during fiscal year (FY) 2000. The data collection for that program is documented in Appendix A, Western Pahute Mesa-Oasis Valley, Well ER-EC-6 Data Report for Development and Hydraulic Testing.

  19. Analysis of Well ER-EC-2a Testing, Western Pahute Mesa-Oasis Valley FY 2000 Testing Program

    SciTech Connect

    2002-09-30

    This report documents the analysis of the data collected for Well ER-EC-2a during the Western Pahute Mesa - Oasis Valley (WPM-OV) well development and testing program that was conducted during fiscal year (FY) 2000. The data collection for that program is documented in Appendix A, Western Pahute Mesa - Oasis Valley, Well ER-EC-2a Data Report for Development and Hydraulic Testing.

  20. Analysis of Well ER-EC-8 testing, Western Pahute Mesa-Oasis Valley FY 2000 testing program

    SciTech Connect

    2002-09-30

    This report documents the analysis of the data collected for Well ER-EC-8 during the Western Pahute Mesa - Oasis Valley (WPM-OV) well development and testing program that was conducted during fiscal year (FY) 2000. The data collection for that program is documented in Appendix A, Western Pahute Mesa-Oasis Valley, Well ER-EC-8 Data Report for development and Hydraulic Testing.

  1. Reverse engineering of integrated circuits

    DOEpatents

    Chisholm, Gregory H.; Eckmann, Steven T.; Lain, Christopher M.; Veroff, Robert L.

    2003-01-01

    Software and a method therein to analyze circuits. The software comprises several tools, each of which perform particular functions in the Reverse Engineering process. The analyst, through a standard interface, directs each tool to the portion of the task to which it is most well suited, rendering previously intractable problems solvable. The tools are generally used iteratively to produce a successively more abstract picture of a circuit, about which incomplete a priori knowledge exists.

  2. Structures of {sup 201}Po and {sup 205}Rn from EC/{beta}{sup +}-decay studies

    SciTech Connect

    Deo, A. Y.; Podolyak, Zs.; Walker, P. M.; Farrelly, G.; Gelletly, W.; Algora, A.; Rubio, B.; Agramunt, J.; Estevez, E.; Fraile, L. M.; Al-Dahan, N.; Alkhomashi, N.; Briz, J. A.; Maira, A.; Herlert, A.; Koester, U.; Singla, S.

    2010-02-15

    Several low-lying excited states in {sub 86}{sup 205}Rn{sub 119} and {sub 84}{sup 201}Po{sub 117} were identified for the first time following EC/{beta}{sup +} decay of {sup 205}Fr and {sup 201}At, respectively, using {gamma}-ray and conversion electron spectroscopy at the CERN isotope separator on-line (ISOLDE) facility. The EC/{beta}{sup +} branch from {sup 205}Fr was measured to be 1.5(2)%. The excited states of the daughter nuclei are understood in terms of the odd nucleon coupling to the neighboring even-even core. The neutron single-particle energies of the p{sub 3/2} orbital relative to the f{sub 5/2} ground state in {sup 205}Rn, and the f{sub 5/2} orbital relative to the p{sub 3/2} ground state in {sup 201}Po, were determined to be 31.4(2) and 5.7(3) keV, respectively. We tentatively identify a (13/2){sup +} isomeric level at 657.1(5) keV in {sup 205}Rn. The systematic behavior of the (13/2){sup +} and (3/2){sup -} levels is also discussed.

  3. Metal-Air Batteries

    SciTech Connect

    Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

    2011-08-01

    Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

  4. Conference-EC-US Task Force Joint US-EU Workshop on Metabolomics and Environmental Biotechnology

    SciTech Connect

    PI: Lily Y. Young Co-PI: Gerben J. Zylstra

    2009-06-04

    Since 1990, the EC-US Task Force on Biotechnology Research has been coordinating transatlantic efforts to guide and exploit the ongoing revolution in biotechnology and the life sciences. The Task Force was established in June 1990 by the European Commission and the White House Office of Science and Technology Policy. The Task Force has acted as an effective forum for discussion, coordination, and development of new ideas for the last 18 years. Task Force members are European Commission and US Government science and technology administrators who meet annually to enhance communication across the Atlantic, and to encourage collaborative research. Through sponsoring workshops, and other activities, the Task Force also brings together scientific leaders and early career researchers from both sides of the Atlantic to forecast research challenges and opportunities and to promote better links between researchers. Over the years, by keeping a focus on the future of science, the Task Force has played a key role in establishing a diverse range of emerging scientific fields, including biodiversity research, neuroinformatics, genomics, nanobiotechnology, neonatal immunology, transkingdom molecular biology, biologically-based fuels, and environmental biotechnology. The EC-US Task Force has sponsored a number of Working Groups on topics of mutual transatlantic interest. The idea to create a Working Group on Environmental Biotechnology research was discussed in the Task Force meeting of October 1993. The EC-US Working Group on Environmental Biotechnology set as its mission 'To train the next generation of leaders in environmental biotechnology in the United States and the European Union to work collaboratively across the Atlantic.' Since 1995, the Working Group supported three kinds of activities, all of which focus one early career scientists: (1) Workshops on the use of molecular methods and genomics in environmental biotechnology; (2) Short courses with theoretical, laboratory

  5. Remote Whispering Applying Time Reversal

    SciTech Connect

    Anderson, Brian Eric

    2015-07-16

    The purpose of this project was to explore the use of time reversal technologies as a means for communication to a targeted individual or location. The idea is to have the privacy of whispering in one’s ear, but to do this remotely from loudspeakers not located near the target. Applications of this work include communicating with hostages and survivors in rescue operations, communicating imaging and operational conditions in deep drilling operations, monitoring storage of spent nuclear fuel in storage casks without wires, or clandestine activities requiring signaling between specific points. This technology provides a solution in any application where wires and radio communications are not possible or not desired. It also may be configured to self calibrate on a regular basis to adjust for changing conditions. These communications allow two people to converse with one another in real time, converse in an inaudible frequency range or medium (i.e. using ultrasonic frequencies and/or sending vibrations through a structure), or send information for a system to interpret (even allowing remote control of a system using sound). The time reversal process allows one to focus energy to a specific location in space and to send a clean transmission of a selected signal only to that location. In order for the time reversal process to work, a calibration signal must be obtained. This signal may be obtained experimentally using an impulsive sound, a known chirp signal, or other known signals. It may also be determined from a numerical model of a known environment in which the focusing is desired or from passive listening over time to ambient noise.

  6. Intercomparison of nuclear data library sources, group structures and collapsing spectra for INTOR-EC

    SciTech Connect

    Pelloni, S.; Stepanek, J.

    1983-09-01

    The European Community International Tokamak Reactor (INTOR-EC) was used to investigate the influence of different cross-section libraries on the tritium breeding ratio. Nucleonic analyses were performed using the discreteordinates transport codes ANISN and ONEDANT, and the recently developed Swiss surface-flux code SURCU. Nuclear data considered were from the DLC-37, VITAMIN-C (DLC-41), Los AlamosNJOY and MACKLIB-IV fusion libraries. It is shown that very good agreement (within 0.5%) between the breeding ratios obtained using the VITAMIN-C and Los Alamos libraries could be obtained, whereas the corresponding values calculated using VITAMIN-C and MACKLIB-IV data sets collapsed into 25 neutron and 21 gamma groups differ up to 23%.

  7. Development of Reversible Fuel Cell Systems at Proton Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reversible Fuel Cell Systems at Proton Energy Everett Anderson NRELDOE Reversible Fuel Cell Workshop 19 April 2011 Development of Reversible Fuel Cell Systems at Proton Energy ...

  8. Reversible Fuel Cells Workshop Summary Report | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reversible Fuel Cells Workshop Summary Report Reversible Fuel Cells Workshop Summary Report Summary and presentations from the NREL Reversible Fuel Cells Workshop held April 19, ...

  9. Primary zone air proportioner

    DOEpatents

    Cleary, Edward N. G.

    1982-10-12

    An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

  10. Biological Air Emissions Control

    Office of Energy Efficiency and Renewable Energy (EERE)

    Air quality standards are becoming more stringent for the U.S. wood products industry. Emissions of volatile organic compounds (VOCs) and hazardous air pollutants (HAPs) (including methanol,...

  11. Process of forming compounds using reverse micelle or reverse microemulsion systems

    DOEpatents

    Linehan, John C.; Fulton, John L.; Bean, Roger M.

    1998-01-01

    The present invention is directed to a process for producing a nanometer-sized metal compound. The process comprises forming a reverse micelle or reverse microemulsion system comprising a polar fluid in a non-polar or low-polarity fluid. A first reactant comprising a multi-component, water-soluble metal compound is introduced into the polar fluid in a non-polar or low-polarity fluid. This first reactant can be introduced into the reverse micelle or reverse microemulsion system during formation thereof or subsequent to the formation of the reverse micelle or microemulsion system. The water-soluble metal compound is then reacted in the reverse micelle or reverse microemulsion system to form the nanometer-sized metal compound. The nanometer-sized metal compound is then precipitated from the reverse micelle or reverse microemulsion system.

  12. Preheated Combustion Air

    Energy.gov [DOE]

    This tip sheet describes how to improve process heating efficiency by preheating combustion air for burners.

  13. Cromer Cycle Air Conditioner

    Energy.gov [DOE]

    New Air Conditioning System Uses Desiccant to Transfer Moisture and Increase Efficiency and Capacity

  14. Air separation by the Moltox process

    SciTech Connect

    Erickson, D. C.

    1981-04-01

    The report describes results of a development program on a new and energy saving process for air separation. The Moltox process involves reversibly reacting oxygen in air with a recirculating salt solution, such that oxygen is extracted without depressurizing the remaining nitrogen. Energy savings of approximately 50% are indicated for this process compared to conventional cryogenic air separation. The development program consisted of design, construction, and operation of a 6 liter/minute pilot plant; optimization of the process flowsheet through computer modelling; investigation of engineering aspects of the process including corrosion, safety, and NO/sub x/ generation; and an economic comparison to conventional cryogenic practice. All objectives were satisfactorily achieved except for continuous operation of the pilot plant, and the modifications necessary to achieve that have been identified. Economically the Moltox process shows a substantial advantage over large scale cryogenic plants which are powered by fuel vice electricity.

  15. Reverse Osmosis Optimization | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reverse Osmosis Optimization Reverse Osmosis Optimization Report assesses techniques for optimizing reverse osmosis (RO) systems to increase RO system performance and water efficiency. It provides a general description of RO systems, the influence of RO systems on water use, and key areas where RO systems can be optimized to reduce water and energy consumption. This report is intended to help facility managers at Federal sites understand the basic concepts of the RO process and system

  16. Time Reversal of Bose-Einstein Condensates

    SciTech Connect

    Martin, J.; Georgeot, B.; Shepelyansky, D. L. [Laboratoire de Physique Theorique, Universite de Toulouse III, CNRS, 31062 Toulouse (France)

    2008-08-15

    Using Gross-Pitaevskii equation, we study the time reversibility of Bose-Einstein condensates (BEC) in kicked optical lattices, showing that in the regime of quantum chaos, the dynamics can be inverted from explosion to collapse. The accuracy of time reversal decreases with the increase of atom interactions in BEC, until it is completely lost. Surprisingly, quantum chaos helps to restore time reversibility. These predictions can be tested with existing experimental setups.

  17. Gravity controlled anti-reverse rotation device

    DOEpatents

    Dickinson, Robert J.; Wetherill, Todd M.

    1983-01-01

    A gravity assisted anti-reverse rotation device for preventing reverse rotation of pumps and the like. A horizontally mounted pawl is disposed to mesh with a fixed ratchet preventing reverse rotation when the pawl is advanced into intercourse with the ratchet by a vertically mounted lever having a lumped mass. Gravitation action on the lumped mass urges the pawl into mesh with the ratchet, while centrifugal force on the lumped mass during forward, allowed rotation retracts the pawl away from the ratchet.

  18. Direct Imaging of Asymmetric Magnetization Reversal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Direct Imaging of Asymmetric Magnetization Reversal Print The phenomenon of exchange bias has transformed how data is read on magnetic hard disks and created an explosion in their...

  19. Rotation Reversal Bifurcation and Energy Confinement Saturation...

    Office of Scientific and Technical Information (OSTI)

    Title: Rotation Reversal Bifurcation and Energy Confinement Saturation in Tokamak Ohmic L -Mode Plasmas Authors: Rice, J. E. ; Cziegler, I. ; Diamond, P. H. ; Duval, B. P. ; ...

  20. Fuel-Free Compressed-Air Energy Storage: Fuel-Free, Ubiquitous Compressed-Air Energy Storage and Power Conditioning

    SciTech Connect

    2010-09-13

    GRIDS Project: General Compression has developed a transformative, near-isothermal compressed air energy storage system (GCAES) that prevents air from heating up during compression and cooling down during expansion. When integrated with renewable generation, such as a wind farm, intermittent energy can be stored in compressed air in salt caverns or pressurized tanks. When electricity is needed, the process is reversed and the compressed air is expanded to produce electricity. Unlike conventional compressed air energy storage (CAES) projects, no gas is burned to convert the stored high-pressure air back into electricity. The result of this breakthrough is an ultra-efficient, fully shapeable, 100% renewable and carbon-free power product. The GCAES™ system can provide high quality electricity and ancillary services by effectively integrating renewables onto the grid at a cost that is competitive with gas, coal and nuclear generation.

  1. US--EC fuel cycle study: Background document to the approach and issues

    SciTech Connect

    Cantor, Robin; Russell, Lee; Krupnick, Alan; Smith, Hilary; Schaffhauser, Jr., A.; Barnthouse, Larry; Cada, Glen; Kroodsma, Roger; Turner, Robb; Easterly, Clay; Jones, Troyce; Burtraw, Dallas; Harrington, Winston; Freeman, A. Myrick

    1992-11-01

    In February 1991, DOE and the Commission of the European Communities (EC), signed a joint statement regarding the external costs of fuel cycles. This 18-month agreement committed their respective organizations to develop a comparative analytical methodology and to develop the best range of estimates of external costs from secondary sources'' for eight fuel cycles and four conservation options. In our study, a fuel cycle is defined as the series of physical and chemical processes and activities that are required to generate electricity from a specific fuel or resource. This foundation phase of the study is primarily limited to developing and demonstrating methods for estimating impacts and their monetized value, what we term damages'' or benefits,'' leaving aside the extent to which such damages have been internalized. However, Appendix C provides the conceptual framework for evaluating the extent of internalization. This report is a background document to introduce the study approach and to discuss the major conceptual and practical issues entailed by the incremental damage problem. As a background document, the report seeks to communicate an overview of the study and the important methodological choices that were made to conduct the research. In successive sections of the report, the methodological tools used in the study are discussed; the ecological and health impacts are reviewed using the coal fuel cycle as a reference case; and, in the final chapter, the methods for valuing impacts are detailed.

  2. US--EC fuel cycle study: Background document to the approach and issues

    SciTech Connect

    Cantor, Robin; Lee, Russell

    1992-11-01

    In February 1991, DOE and the Commission of the European Communities (EC), signed a joint statement regarding the external costs of fuel cycles. This 18-month agreement committed their respective organizations to ``develop a comparative analytical methodology and to develop the best range of estimates of external costs from secondary sources`` for eight fuel cycles and four conservation options. In our study, a fuel cycle is defined as the series of physical and chemical processes and activities that are required to generate electricity from a specific fuel or resource. This foundation phase of the study is primarily limited to developing and demonstrating methods for estimating impacts and their monetized value, what we term ``damages`` or ``benefits,`` leaving aside the extent to which such damages have been internalized. However, Appendix C provides the conceptual framework for evaluating the extent of internalization. This report is a background document to introduce the study approach and to discuss the major conceptual and practical issues entailed by the incremental damage problem. As a background document, the report seeks to communicate an overview of the study and the important methodological choices that were made to conduct the research. In successive sections of the report, the methodological tools used in the study are discussed; the ecological and health impacts are reviewed using the coal fuel cycle as a reference case; and, in the final chapter, the methods for valuing impacts are detailed.

  3. Quantitative Electrochemical Measurements using in situ ec-S/TEM Devices

    SciTech Connect

    Unocic, Raymond R; Sacci, Robert L; Brown, Gilbert M; Veith, Gabriel M; Dudney, Nancy J; More, Karren Leslie; Gardiner, Daniel; Walden II, Franklin S; Damiano, John; Nackashi, David P.

    2014-01-01

    Insight into dynamic electrochemical processes can be obtained with in situ ec-S/TEM, which utilizes microfluidic electrochemical cells to characterize electrochemical processes with S/TEM imaging, diffraction or spectroscopy. The microfluidic electrochemical cell is composed of microfabricated devices with glassy carbon and platinum microband electrodes in a three-electrode cell configuration. To establish the validity of this method for quantitative in situ electrochemistry research, cyclic voltammetry, choronoamperometry and electrochemical impedance spectroscopy were performed using a standard one electron transfer redox couple using a [Fe(CN)6]3-/4- based electrolyte. Established relationships of the electrode geometry and microfluidic conditions were fitted with cyclic voltammetry and chronoamperometic measurements of analyte diffusion coefficients and was found to agree with well-accepted values that are on the order of 10-5 cm2 s-1. Influence of the electron beam on electrochemical measurements was found to be negligible during CV scans where the current profile varied only within a few nA with the electron beam on and off which is well within the hysteresis between multiple CV scans. The combination of experimental results provides a validation that quantitative electrochemistry experiments can be performed with these small-scale microfluidic electrochemical cells provided that accurate geometrical electrode configurations, diffusion boundary layers and microfluidic conditions are accounted for.

  4. Isokinetic air sampler

    DOEpatents

    Sehmel, George A.

    1979-01-01

    An isokinetic air sampler includes a filter, a holder for the filter, an air pump for drawing air through the filter at a fixed, predetermined rate, an inlet assembly for the sampler having an inlet opening therein of a size such that isokinetic air sampling is obtained at a particular wind speed, a closure for the inlet opening and means for simultaneously opening the closure and turning on the air pump when the wind speed is such that isokinetic air sampling is obtained. A system incorporating a plurality of such samplers provided with air pumps set to draw air through the filter at the same fixed, predetermined rate and having different inlet opening sizes for use at different wind speeds is included within the ambit of the present invention as is a method of sampling air to measure airborne concentrations of particulate pollutants as a function of wind speed.

  5. Fuel cell system with coolant flow reversal

    DOEpatents

    Kothmann, Richard E. (Pittsburgh, PA)

    1986-01-01

    Method and apparatus for cooling electrochemical fuel cell system components. Periodic reversal of the direction of flow of cooling fluid through a fuel cell stack provides greater uniformity and cell operational temperatures. Flow direction through a recirculating coolant fluid circuit is reversed through a two position valve, without requiring modulation of the pumping component.

  6. Three component vibrational time reversal communication

    SciTech Connect

    Anderson, Brian E.; Ulrich, Timothy J.; Ten Cate, James A.

    2015-01-01

    Time reversal provides an optimal prefilter matched signal to apply to a communication signal before signal transmission. Time reversal allows compensation for wave speed dispersion and can function well in reverberant environments. Time reversal can be used to focus elastic energy to each of the three components of motion independently. A pipe encased in concrete was used to demonstrate the ability to conduct communications of information using three component time reversal. Furthermore, the ability of time reversal to compensate for multi-path distortion (overcoming reverberation) will be demonstrated and the rate of signal communication will be presented. [The U.S. Department of Energy, through the LANL/LDRD Program, is gratefully acknowledged for supporting this work.

  7. Three component vibrational time reversal communication

    DOE PAGES [OSTI]

    Anderson, Brian E.; Ulrich, Timothy J.; Ten Cate, James A.

    2015-01-01

    Time reversal provides an optimal prefilter matched signal to apply to a communication signal before signal transmission. Time reversal allows compensation for wave speed dispersion and can function well in reverberant environments. Time reversal can be used to focus elastic energy to each of the three components of motion independently. A pipe encased in concrete was used to demonstrate the ability to conduct communications of information using three component time reversal. Furthermore, the ability of time reversal to compensate for multi-path distortion (overcoming reverberation) will be demonstrated and the rate of signal communication will be presented. [The U.S. Department ofmore » Energy, through the LANL/LDRD Program, is gratefully acknowledged for supporting this work.]« less

  8. Simple Interactive Models for better air quality (SIM-air) |...

    OpenEI (Open Energy Information) [EERE & EIA]

    Interactive Models for better air quality (SIM-air) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Simple Interactive Models (SIM-air) AgencyCompany Organization:...

  9. Maintaining Your Air Conditioner

    Energy.gov [DOE]

    Regular maintenance extends the life of your air conditioner and helps it run as efficiently as possible.

  10. Minimize Compressed Air Leaks

    Office of Energy Efficiency and Renewable Energy (EERE)

    This tip sheet outlines a strategy for compressed air leak detection and provides a formula for cost savings calculations.

  11. Chemical reactions in reverse micelle systems

    DOEpatents

    Matson, Dean W.; Fulton, John L.; Smith, Richard D.; Consani, Keith A.

    1993-08-24

    This invention is directed to conducting chemical reactions in reverse micelle or microemulsion systems comprising a substantially discontinuous phase including a polar fluid, typically an aqueous fluid, and a microemulsion promoter, typically a surfactant, for facilitating the formation of reverse micelles in the system. The system further includes a substantially continuous phase including a non-polar or low-polarity fluid material which is a gas under standard temperature and pressure and has a critical density, and which is generally a water-insoluble fluid in a near critical or supercritical state. Thus, the microemulsion system is maintained at a pressure and temperature such that the density of the non-polar or low-polarity fluid exceeds the critical density thereof. The method of carrying out chemical reactions generally comprises forming a first reverse micelle system including an aqueous fluid including reverse micelles in a water-insoluble fluid in the supercritical state. Then, a first reactant is introduced into the first reverse micelle system, and a chemical reaction is carried out with the first reactant to form a reaction product. In general, the first reactant can be incorporated into, and the product formed in, the reverse micelles. A second reactant can also be incorporated in the first reverse micelle system which is capable of reacting with the first reactant to form a product.

  12. Cheaper Adjoints by Reversing Address Computations

    DOE PAGES [OSTI]

    Hascoët, L.; Utke, J.; Naumann, U.

    2008-01-01

    The reverse mode of automatic differentiation is widely used in science and engineering. A severe bottleneck for the performance of the reverse mode, however, is the necessity to recover certain intermediate values of the program in reverse order. Among these values are computed addresses, which traditionally are recovered through forward recomputation and storage in memory. We propose an alternative approach for recovery that uses inverse computation based on dependency information. Address storage constitutes a significant portion of the overall storage requirements. An example illustrates substantial gains that the proposed approach yields, and we show use cases in practical applications.

  13. Adiabatic model and design of a translating field reversed configuration

    SciTech Connect

    Intrator, T. P.; Siemon, R. E.; Sieck, P. E.

    2008-04-15

    We apply an adiabatic evolution model to predict the behavior of a field reversed configuration (FRC) during decompression and translation, as well as during boundary compression. Semi-empirical scaling laws, which were developed and benchmarked primarily for collisionless FRCs, are expected to remain valid even for the collisional regime of FRX-L experiment. We use this approach to outline the design implications for FRX-L, the high density translated FRC experiment at Los Alamos National Laboratory. A conical theta coil is used to accelerate the FRC to the largest practical velocity so it can enter a mirror bounded compression region, where it must be a suitable target for a magnetized target fusion (MTF) implosion. FRX-L provides the physics basis for the integrated MTF plasma compression experiment at the Shiva-Star pulsed power facility at Kirtland Air Force Research Laboratory, where the FRC will be compressed inside a flux conserving cylindrical shell.

  14. Air Sparging Decision Tool

    Energy Science and Technology Software Center

    1996-06-10

    The Air Sparging Decision Tool is a computer decision aid to help environmental managers and field practitioners in evaluating the applicability of air sparging to a wide range of sites and for refining the operation of air sparging systems. The program provides tools for the practitioner to develop the conceptual design for an air sparging system suitable for the identified site. The Tool provides a model of the decision making process, not a detailed designmore » of air sparging systems. The Tool will quickly and cost effectively assist the practitioner in screening for applicability of the technology at a proposed site.« less

  15. Determining the Right Air Quality for Your Compressed Air System

    Energy.gov [DOE]

    This tip sheet outlines the main factors for determining the right air quality for compressed air systems.

  16. System Design and New Materials for Reversible, Solid-Oxide, High Temperature Steam Electrolysis

    SciTech Connect

    Ruud, J.A.

    2007-12-20

    High temperature solid oxide electrolysis cells (SOECs) offer high electrical efficiency and a potential path to large scale hydrogen production. Solid oxide technology is capable of both power generation and hydrogen production. That makes it possible for the development of a reversible solid-oxide system that can respond to market conditions to produce electricity or hydrogen on demand. New high-temperature electrolyzer cell materials are needed to enable cost-effective hydrogen production system designs based on reversible steam electrolysis. Two test methods were established for the eventual development of the reversible, durable electrode materials: the button cell test and the oxygen electrode test. The button cell test is capable of evaluating the performance and degradation of full solid oxide cells with dual atmosphere of air and hydrogen-steam. The oxygen electrode test is capable of isolating the performance and degradation of the oxygen electrode. It has higher throughput and sensitivity than the button cell test.

  17. Reversing the Circulation of Magnetic Vortices

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reversing the Circulation of Magnetic Vortices Print In magnetic media, information is stored in binary form-one or zero, depending on which way the electronic spins are aligned in...

  18. Direct Imaging of Asymmetric Magnetization Reversal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and H. Ohldag, "Direct imaging of asymmetric magnetization reversal in exchange-biased FeMnPd bilayers by x-ray photoemission electron microscopy," Phys. Rev. Lett. 94, 107203...

  19. Direct Imaging of Asymmetric Magnetization Reversal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    H. Ohldag, "Direct imaging of asymmetric magnetization reversal in exchange-biased FeMnPd bilayers by x-ray photoemission electron microscopy," Phys. Rev. Lett. 94, 107203 (2005...

  20. Remote Whispering Applying Time Reversal (Technical Report) ...

    Office of Scientific and Technical Information (OSTI)

    The purpose of this project was to explore the use of time reversal technologies as a means for communication to a targeted individual or location. The idea is to have the privacy ...

  1. Reversible Fuel Cells Workshop Summary Report

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reversible Fuel Cells Workshop Summary Report Prepared for: U.S. Department of Energy Prepared by: Dr. Robert J. Remick National Renewable Energy Laboratory Mr. Douglas Wheeler DJW Technology YOU'RE INVITED  NREL WORKSHOP Reversible fuel cells operate like batteries and may be one solution to the problem of storing electricity generated by variable resources. This workshop will bring together subject matter experts and fuel cell developers to discuss the state-of- the-art and to draft a road

  2. Photochromic Metal-Organic Frameworks: Reversible Control of...

    Office of Scientific and Technical Information (OSTI)

    Reversible Control of Singlet Oxygen Generation Citation Details In-Document Search Title: Photochromic Metal-Organic Frameworks: Reversible Control of Singlet Oxygen ...

  3. Time-reversal symmetric hierarchy of fractional incompressible...

    Office of Scientific and Technical Information (OSTI)

    Time-reversal symmetric hierarchy of fractional incompressible liquids Title: Time-reversal symmetric hierarchy of fractional incompressible liquids Authors: Santos, Luiz ; ...

  4. Reversible ratchet effects for vortices in conformal pinning...

    Office of Scientific and Technical Information (OSTI)

    Reversible ratchet effects for vortices in conformal pinning arrays Citation Details In-Document Search This content will become publicly available on May 3, 2016 Title: Reversible...

  5. Fractional Topological Phases and Broken Time-Reversal Symmetry...

    Office of Scientific and Technical Information (OSTI)

    Fractional Topological Phases and Broken Time-Reversal Symmetry in Strained Graphene Title: Fractional Topological Phases and Broken Time-Reversal Symmetry in Strained Graphene ...

  6. REVERSE RADIATIVE SHOCK LASER EXPERIMENTS RELEVANT TO ACCRETING...

    Office of Scientific and Technical Information (OSTI)

    REVERSE RADIATIVE SHOCK LASER EXPERIMENTS RELEVANT TO ACCRETING STREAM-DISK IMPACT IN INTERACTING BINARIES Citation Details In-Document Search Title: REVERSE RADIATIVE SHOCK LASER ...

  7. Reversible Metal Hydride Thermal Energy Storage for High Temperature...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reversible Metal Hydride Thermal Energy Storage for High Temperature Power Generation Systems Reversible Metal Hydride Thermal Energy Storage for High Temperature Power Generation ...

  8. Time-reversal-invariant topological superconductivity in n -doped...

    Office of Scientific and Technical Information (OSTI)

    Time-reversal-invariant topological superconductivity in n -doped BiH Citation Details In-Document Search Title: Time-reversal-invariant topological superconductivity in n -doped ...

  9. Determining the Right Air Quality for Your Compressed Air System - Compressed Air Tip Sheet #5

    SciTech Connect

    2004-08-01

    BestPractices Program tip sheet discussing how to determine the right air quality for compressed air systems.

  10. Common Air Conditioner Problems

    Energy.gov [DOE]

    When your air conditioner is not operating properly, there are a few things you can check before calling a service professional.

  11. Personal continuous air monitor

    DOEpatents

    Morgan, Ronald G.; Salazar, Samuel A.

    2000-01-01

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  12. Adsorption air conditioner

    DOEpatents

    Rousseau, Jean L. I.

    1979-01-01

    A solar powered air conditioner using the adsorption process is constructed with its components in a nested cylindrical array for compactness and ease of operation.

  13. Hill Air Force Base

    Energy.gov [DOE]

    Energy savings performance contracting at Hill Air Force Base generated much interest during a recent training session on energy management that downlinked 12 Department of Defense sites. Energy...

  14. Reversible Change in Electrical and Optical Properties in Epitaxially Grown Al-Doped ZnO Thin Films

    SciTech Connect

    Noh, J. H.; Jung, H. S.; Lee, J. K.; Kim, J. Y; Cho, C. M.; An, J.; Hong, K. S.

    2008-01-01

    Aluminum-doped ZnO (AZO) films were epitaxially grown on sapphire (0001) substrates using pulsed laser deposition. As-deposited AZO films had a low resistivity of 8.01 x 10{sup -4} {Omega} cm. However, after annealing at 450 C in air, the electrical resistivity of the AZO films increased to 1.97 x 10{sup -1} {Omega} cm because of a decrease in the carrier concentration. Subsequent annealing of the air-annealed AZO films in H{sub 2} recovered the electrical conductivity of the AZO films. In addition, the conductivity change was reversible upon repeated air and H{sub 2} annealing. A photoluminescence study showed that oxygen interstitial (O{sub i}) is a critical material parameter allowing for the reversible control of the electrical conducting properties of AZO films.

  15. EC assisted start-up experiments reproduction in FTU and AUG for simulations of the ITER case

    SciTech Connect

    Granucci, G.; Ricci, D.; Farina, D.; Figini, L.; Cavinato, M.; Stober, J.; Tudisco, O.

    2014-02-12

    The breakdown and plasma start-up in ITER are well known issues studied in the last few years in many tokamaks with the aid of calculation based on simplified modeling. The thickness of ITER metallic wall and the voltage limits of the Central Solenoid Power Supply strongly limit the maximum toroidal electric field achievable (0.3 V/m), well below the level used in the present generation of tokamaks. In order to have a safe and robust breakdown, the use of Electron Cyclotron Power to assist plasma formation and current rump up has been foreseen. This has raised attention on plasma formation phase in presence of EC wave, especially in order to predict the required power for a robust breakdown in ITER. Few detailed theory studies have been performed up to nowadays, due to the complexity of the problems. A simplified approach, extended from that proposed in ref[1] has been developed including a impurity multispecies distribution and an EC wave propagation and absorption based on GRAY code. This integrated model (BK0D) has been benchmarked on ohmic and EC assisted experiments on FTU and AUG, finding the key aspects for a good reproduction of data. On the basis of this, the simulation has been devoted to understand the best configuration for ITER case. The dependency of impurity distribution content and neutral gas pressure limits has been considered. As results of the analysis a reasonable amount of power (1 - 2 MW) seems to be enough to extend in a significant way the breakdown and current start up capability of ITER. The work reports the FTU data reproduction and the ITER case simulations.

  16. Data:0149f280-821d-4e6f-bc27-501c18ec12fd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    f-bc27-501c18ec12fd No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic...

  17. Portable oven air circulator

    DOEpatents

    Jorgensen, Jorgen A.; Nygren, Donald W.

    1983-01-01

    A portable air circulating apparatus for use in cooking ovens which is used to create air currents in the oven which transfer heat to cooking foodstuffs to promote more rapid and more uniform cooking or baking, the apparatus including a motor, fan blade and housing of metallic materials selected from a class of heat resistant materials.

  18. AIR RADIOACTIVITY MONITOR

    DOEpatents

    Bradshaw, R.L.; Thomas, J.W.

    1961-04-11

    The monitor is designed to minimize undesirable background buildup. It consists of an elongated column containing peripheral electrodes in a central portion of the column, and conduits directing an axial flow of radioactively contaminated air through the center of the column and pure air through the annular portion of the column about the electrodes. (AEC)

  19. Protective air lock

    DOEpatents

    Evans, Herbert W.

    1976-03-30

    A device suitable for preventing escape and subsequent circulation of toxic gases comprising an enclosure which is sealed by a surrounding air lock, automatic means for partially evacuating said enclosure and said air lock and for ventilating said enclosure and means for disconnecting said enclosure ventilating means, whereby a relatively undisturbed atmosphere is created in said enclosure.

  20. Recirculating electric air filter

    DOEpatents

    Bergman, Werner

    1986-01-01

    An electric air filter cartridge has a cylindrical inner high voltage eleode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  1. Recirculating electric air filter

    DOEpatents

    Bergman, W.

    1985-01-09

    An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

  2. History of Air Conditioning

    Energy.gov [DOE]

    We take it for granted but what would life be like without the air conditioner? Once considered a luxury, this invention is now an essential, allowing us to cool everything from homes, businesses, businesses, data centers, laboratories and other buildings vital to our daily lives. Explore this timeline to learn some of the key dates in the history of air conditioning.

  3. Optimal design of reverse osmosis module networks

    SciTech Connect

    Maskan, F.; Wiley, D.E.; Johnston, L.P.M.; Clements, D.J.

    2000-05-01

    The structure of individual reverse osmosis modules, the configuration of the module network, and the operating conditions were optimized for seawater and brackish water desalination. The system model included simple mathematical equations to predict the performance of the reverse osmosis modules. The optimization problem was formulated as a constrained multivariable nonlinear optimization. The objective function was the annual profit for the system, consisting of the profit obtained from the permeate, capital cost for the process units, and operating costs associated with energy consumption and maintenance. Optimization of several dual-stage reverse osmosis systems were investigated and compared. It was found that optimal network designs are the ones that produce the most permeate. It may be possible to achieve economic improvements by refining current membrane module designs and their operating pressures.

  4. Time reversal signal processing for communication.

    SciTech Connect

    Young, Derek P.; Jacklin, Neil; Punnoose, Ratish J.; Counsil, David T.

    2011-09-01

    Time-reversal is a wave focusing technique that makes use of the reciprocity of wireless propagation channels. It works particularly well in a cluttered environment with associated multipath reflection. This technique uses the multipath in the environment to increase focusing ability. Time-reversal can also be used to null signals, either to reduce unintentional interference or to prevent eavesdropping. It does not require controlled geometric placement of the transmit antennas. Unlike existing techniques it can work without line-of-sight. We have explored the performance of time-reversal focusing in a variety of simulated environments. We have also developed new algorithms to simultaneously focus at a location while nulling at an eavesdropper location. We have experimentally verified these techniques in a realistic cluttered environment.

  5. REVERSIBLE AND IRREVERSIBLE PASSIVATION OF A LA-NI-AL ALLOY

    SciTech Connect

    Shanahan, K.; Klein, J.

    2009-06-25

    This paper seeks to explore some of the effects of passivating a LaNi{sub 4.25}Al{sub 0.75} sample by air oxidation under controlled conditions. Passivation of this metal hydride alloy seems to have two distinct regimes. The first occurs with air oxidation at 80 C and 20 C. It is characterized by complete reversibility upon hydrogen readsorption, although said readsorption is hindered substantially at room temperature, requiring the material to be heated to produce the reactivation. The second regime is illustrated by 130 C air oxidation and is characterized by irreversible loss of hydrogen absorption capacity. This passivation does not hinder hydrogen readsorption into the remaining hydride material.

  6. Transport Physics in Reversed Shear Plasmas

    SciTech Connect

    Levinton, F.M.; Batha, S.H.; Beer, M.A.; Bell, M.G.; Budny, R.V.; Efthimion, P.C.; Mazzucato, E.; Nazikian, R.; Park, H.K.; Ramsey, A.T.; Schmidt, G.L.; Scott, S.D.; Synakowski, E.J.; Taylor, G.; Von Goeler, S.; Zarnstorff, M.C.; Bush, C.E.

    1997-12-31

    Reversed magnetic shear is considered a good candidate for improving the tokamak concept because it has the potential to stabilize MHD instabilities and reduce particle and energy transport. With reduced transport the high pressure gradient would generate a strong off-axis bootstrap current and could sustain a hollow current density profile. Such a combination of favorable conditions could lead to an attractive steady-state tokamak configuration. Indeed, a new tokamak confinement regime with reversed magnetic shear has been observed on the Tokamak Fusion Test Reactor (TFTR) where the particle, momentum, and ion thermal diffusivities drop precipitously, by over an order of magnitude. The particle diffusivity drops to the neoclassical level and the ion thermal diffusivity drops to much less than the neoclassical value in the region with reversed shear. This enhanced reversed shear (ERS) confinement mode is characterized by an abrupt transition with a large rate of rise of the density in the reversed shear region during neutral beam injection, resulting in nearly a factor of three increase in the central density to 1.2 X 10(exp 20) cube m. At the same time the density fluctuation level in the reversed shear region dramatically decreases. The ion and electron temperatures, which are about 20 keV and 7 keV respectively, change little during the ERS mode. The transport and transition into and out of the ERS mode have been studied on TFTR with plasma currents in the range 0.9-2.2 MA, with a toroidal magnetic field of 2.7-4.6 T, and the radius of the q(r) minimum, q{sub min}, has been varied from r/a = 0.35 to 0.55. Toroidal field and co/counter neutral beam injection toroidal rotation variations have been used to elucidate the underlying physics of the transition mechanism and power threshold of the ERS mode.

  7. Renewables and air quality

    SciTech Connect

    Wooley, D.R.

    2000-08-01

    The US heavy reliance on fossil fuels is a central obstacle to improving air quality and preventing catastrophic climate change. To solve this problem will require a combination of financial incentives and market rules that strongly encourage development of renewable energy resources to meet electric power demand. One promising policy option is to allow renewable energy resources to directly participate in air pollution emission trading mechanisms. Currently, the clean air benefits of renewable energy generally go unrecognized by regulators, under-appreciated by consumers and uncompensated by markets. Renewable energy is a key clean air alternative to conventional electricity generation, and the development of renewables could be stimulated by changes to the Clean Air Act's emissions trading programs. As Congress revisits clean air issues over the next several years, renewable energy representatives could push for statutory changes that reward the renewable energy industry for the air quality benefits it provides. By also becoming involved in key US Environmental Protection Agency (EPA) and state rule-making cases, the renewables industry could influence the structure of emissions trading programs and strengthen one of the most persuasive arguments for wind, solar and biomass energy development.

  8. Completion Report for Well ER-EC-14, Corrective Action Units 101 and 102: Central and Western Pahute Mesa

    SciTech Connect

    2013-03-05

    Well ER-EC-14 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Management Operations Underground Test Area (UGTA) Activity at the Nevada National Security Site (NNSS; formerly Nevada Test Site), Nye County, Nevada. The well was drilled in September and October 2012, as part of the Central and Western Pahute Mesa Corrective Action Unit Phase II drilling program. The primary purpose of the well was to provide detailed hydrogeologic information for the Fortymile Canyon composite hydrostratigraphic unit in the Timber Mountain moat area, within the Timber Mountain caldera complex, that will help address uncertainties within the Pahute Mesa–Oasis Valley hydrostratigraphic framework model. The main 55.9-centimeter (cm) hole was drilled to a total depth of 325.5 meters (m) and cased with 40.6-cm casing to 308.1 m. The hole diameter was then decreased to 37.5 cm, and drilling continued to a total depth of 724.8 m. The completion casing string, set to the depth of 690.9 m, consists of 16.8-cm stainless-steel casing hanging from 19.4-cm carbon-steel casing. The stainless-steel casing has two slotted intervals open to the Rainier Mesa Tuff. Two piezometer strings were installed in Well ER-EC-14. Both piezometer strings, each with one slotted interval, consist of 6.0-cm carbon-steel tubing at the surface, then cross over to 7.3-cm stainless-steel tubing just above the water table. The shallow piezometer string was landed at 507.8 m, and the deep piezometer string was landed at 688.6 m. Both piezometer strings are set to monitor groundwater within moderately to densely welded Rainier Mesa Tuff. Data collected during and shortly after hole construction include composite drill cuttings samples collected every 3.0 m, various geophysical logs, water quality (including tritium and other radionuclides) measurements, and water level measurements. The well penetrated 15.2 m of alluvium and

  9. Air heating system

    DOEpatents

    Primeau, John J.

    1983-03-01

    A self-starting, fuel-fired, air heating system including a vapor generator, a turbine, and a condenser connected in a closed circuit such that the vapor output from the vapor generator is conducted to the turbine and then to the condenser where it is condensed for return to the vapor generator. The turbine drives an air blower which passes air over the condenser for cooling the condenser. Also, a condensate pump is driven by the turbine. The disclosure is particularly concerned with the provision of heat exchanger and circuitry for cooling the condensed fluid output from the pump prior to its return to the vapor generator.

  10. Air Shower Simulations

    SciTech Connect

    Alania, Marco; Gomez, Adolfo V. Chamorro; Araya, Ignacio J.; Huerta, Humberto Martinez; Flores, Alejandra Parra; Knapp, Johannes

    2009-04-30

    Air shower simulations are a vital part of the design of air shower experiments and the analysis of their data. We describe the basic features of air showers and explain why numerical simulations are the appropriate approach to model the shower simulation. The CORSIKA program, the standard simulation program in this field, is introduced and its features, performance and limitations are discussed. The basic principles of hadronic interaction models and some gerneral simulation techniques are explained. Also a brief introduction to the installation and use of CORSIKA is given.

  11. Recent Progress in Retrieving Air Temperature Profiles and Air...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Recent Progress in Retrieving Air Temperature Profiles and Air-Sea Temperature Differences from Infrared and Microwave Scanning Radiometer Data D. Cimini University of L'Aquila ...

  12. Air ejector augmented compressed air energy storage system

    DOEpatents

    Ahrens, Frederick W.; Kartsounes, George T.

    1980-01-01

    Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air pressure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

  13. Air ejector augmented compressed air energy storage system

    DOEpatents

    Ahrens, F.W.; Kartsounes, G.T.

    Energy is stored in slack demand periods by charging a plurality of underground reservoirs with air to the same peak storage pressure, during peak demand periods throttling the air from one storage reservoir into a gas turbine system at a constant inlet pressure until the air presure in the reservoir falls to said constant inlet pressure, thereupon permitting air in a second reservoir to flow into said gas turbine system while drawing air from the first reservoir through a variable geometry air ejector and adjusting said variable geometry air ejector, said air flow being essentially at the constant inlet pressure of the gas turbine system.

  14. Air bag restraint device

    DOEpatents

    Marts, Donna J.; Richardson, John G.

    1995-01-01

    A rear-seat air bag restraint device is disclosed that prevents an individual, or individuals, from continuing violent actions while being transported in a patrol vehicle's rear seat without requiring immediate physical contact by the law enforcement officer. The air bag is activated by a control switch in the front seat and inflates to independently restrict the amount of physical activity occurring in the rear seat of the vehicle while allowing the officer to safely stop the vehicle. The air bag can also provide the officer additional time to get backup personnel to aid him if the situation warrants it. The bag is inflated and maintains a constant pressure by an air pump.

  15. Air bag restraint device

    DOEpatents

    Marts, D.J.; Richardson, J.G.

    1995-10-17

    A rear-seat air bag restraint device is disclosed that prevents an individual, or individuals, from continuing violent actions while being transported in a patrol vehicle`s rear seat without requiring immediate physical contact by the law enforcement officer. The air bag is activated by a control switch in the front seat and inflates to independently restrict the amount of physical activity occurring in the rear seat of the vehicle while allowing the officer to safely stop the vehicle. The air bag can also provide the officer additional time to get backup personnel to aid him if the situation warrants it. The bag is inflated and maintains a constant pressure by an air pump. 8 figs.

  16. Breathing zone air sampler

    DOEpatents

    Tobin, John

    1989-01-01

    A sampling apparatus is provided which comprises a sampler for sampling air in the breathing zone of a wearer of the apparatus and a support for the sampler preferably in the form of a pair of eyeglasses. The sampler comprises a sampling assembly supported on the frame of the eyeglasses and including a pair of sample transport tubes which are suspended, in use, centrally of the frame so as to be disposed on opposite sides of the nose of the wearer and which each include an inlet therein that, in use, is disposed adjacent to a respective nostril of the nose of the wearer. A filter holder connected to sample transport tubes supports a removable filter for filtering out particulate material in the air sampled by the apparatus. The sample apparatus is connected to a pump for drawing air into the apparatus through the tube inlets so that the air passes through the filter.

  17. Air conditioning system

    DOEpatents

    Lowenstein, Andrew; Miller, Jeffrey; Gruendeman, Peter; DaSilva, Michael

    2005-02-01

    An air conditioner comprises a plurality of plates arranged in a successively stacked configuration with portions thereof having a spaced apart arrangement, and defining between successive adjacent pairs of plates at the spaced apart portions a first and second series of discrete alternating passages wherein a first air stream is passed through the first series of passages and a second air stream is passed through the second series of passages; and said stacked configuration of plates forming integrally therewith a liquid delivery means for delivering from a source a sufficient quantity of a liquid to the inside surfaces of the first series of fluid passages in a manner which provides a continuous flow of the liquid from a first end to a second end of the plurality of plates while in contact with the first air stream.

  18. Compressed Air Systems

    Energy.gov [DOE]

    There are incentives for variable frequency drive screw compressors (10-40 HP), air receivers/tanks for load/no-load compressors, cycling refrigerated dryers (up to 200 CFM capacity), no-loss...

  19. Air Sealing Windows

    SciTech Connect

    2009-05-14

    This information sheet addresses windows and may also be applied to doors and other pre-assembled elements installed in building enclosures that also perform an air barrier function.

  20. Guide to Air Sealing

    SciTech Connect

    2011-02-01

    Air sealing is one of the most cost-effective ways to improve the comfort and energy efficiency of your home. Hire a certified professional contractor for best results.