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Sample records for ing ton dc

  1. Ing Arvid Nesheim | Open Energy Information

    Open Energy Info (EERE)

    Name: Ing Arvid Nesheim Address: Hoymyrmarka 123A Place: Vollen Zip: 1391 Region: Norway Sector: Marine and Hydrokinetic Phone Number: 47 951 08 439 Website: www.anwsite.com...

  2. DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it into Fuel for

    National Nuclear Security Administration (NNSA)

    Civilian Reactors | National Nuclear Security Administration Will Dispose of 34 Metric Tons of Plutonium by Turning it into Fuel for Civilian Reactors DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it into Fuel for Civi Washington, DC Secretary Abraham announced that DOE will dispose of 34 metric tons of surplus weapons grade plutonium by turning the material into mixed oxide fuel (MOX) for use in nuclear reactors. The decision follows an exhaustive Administration review of

  3. Improved DC Gun Insulator Assembly

    SciTech Connect (OSTI)

    Sah, R.; Dudas, A.; Neubauer, M. L.; Poelker, M.; Surles-Law, K. E.L.

    2010-05-23

    Many user fa­cil­i­ties such as syn­chrotron ra­di­a­tion light sources and free elec­tron lasers re­quire ac­cel­er­at­ing struc­tures that sup­port elec­tric fields of 10-100 MV/m, es­pe­cial­ly at the start of the ac­cel­er­a­tor chain where ce­ram­ic in­su­la­tors are used for very high gra­di­ent DC guns. These in­su­la­tors are dif­fi­cult to man­u­fac­ture, re­quire long com­mis­sion­ing times, and often ex­hib­it poor re­li­a­bil­i­ty. Two tech­ni­cal ap­proach­es to solv­ing this prob­lem will be in­ves­ti­gat­ed. First­ly, in­vert­ed ce­ram­ics offer so­lu­tions for re­duced gra­di­ents be­tween the elec­trodes and ground. An in­vert­ed de­sign will be pre­sent­ed for 350 kV, with max­i­mum gra­di­ents in the range of 5-10 MV/m. Sec­ond­ly, novel ce­ram­ic man­u­fac­tur­ing pro­cess­es will be stud­ied, in order to pro­tect triple junc­tion lo­ca­tions from emis­sion, by ap­ply­ing a coat­ing with a bulk re­sis­tiv­i­ty. The pro­cess­es for cre­at­ing this coat­ing will be op­ti­mized to pro­vide pro­tec­tion as well as be used to coat a ce­ram­ic with an ap­pro­pri­ate gra­di­ent in bulk re­sis­tiv­i­ty from the vac­u­um side to the air side of an HV stand­off ce­ram­ic cylin­der. Ex­am­ple in­su­la­tor de­signs are being com­put­er mod­elled, and in­su­la­tor sam­ples are being man­u­fac­tured and test­ed

  4. Biography U. Düsterloh Degree: PD Dr.- Ing. habil. Institution...

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

    U. Dsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology. Chair: chair for waste disposal technologies and geomechanics. 1982- 1988 field of study:...

  5. E TON Solar Tech | Open Energy Information

    Open Energy Info (EERE)

    Solar Tech Jump to: navigation, search Name: E-TON Solar Tech Place: Tainan, Taiwan Zip: 709 Product: Taiwan-based manufacturer of PV cells. Coordinates: 22.99721, 120.180862...

  6. Bioenergy Impacts … Billion Dry Tons

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

    by 2030 at least one billion dry tons of non-food biomass resources, yielding up to 60 billion gallons of biofuels, as well as bio- based chemicals, products, and electricity. ...

  7. DOE to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear

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

    Weapons Stockpile | Department of Energy to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear Weapons Stockpile DOE to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear Weapons Stockpile November 7, 2005 - 12:38pm Addthis Will Be Redirected to Naval Reactors, Down-blended or Used for Space Programs WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today announced that the Department of Energy's (DOE) National Nuclear Security Administration (NNSA) will

  8. STEM-ing the Tide | Department of Energy

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

    STEM-ing the Tide STEM-ing the Tide September 29, 2010 - 4:29pm Addthis Ali Zaidi Special Assistant to the Secretary of Energy Yesterday, the MacArthur Foundation rolled out its latest class of "geniuses" - 23 Americans who stand out because of their creativity and enterprise. Each recipient of the honor (and the $500,000 prize) has made an extraordinary contribution. One of those recipients is Amir Abo-Shaeer, an engineer in the aerospace and telecommunications industries who decided

  9. Billion Ton Study-A Historical Perspective | Department of Energy

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

    Billion Ton Study-A Historical Perspective Billion Ton Study-A Historical Perspective Breakout Session 1A: Biomass Feedstocks for the Bioeconomy Billion Ton Study-A Historical Perspective Bryce Stokes, Senior Advisor, CNJV PDF icon stokes_bioenergy_2015.pdf More Documents & Publications Biomass Econ 101: Measuring the Technological Improvements on Feedstocks Costs WEBINAR: A CHANGING MARKET FOR BIOFUELS AND BIOPRODUCTS U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts

  10. WASHINGTON. DC.

    Office of Legacy Management (LM)

    WASHINGTON. DC. tzr.~Dfak nuf, Ama fall- II* 8. Atoalc l%mqy Camlealnn . . . . ,L:,. ' ,. 8ta loui Are0 offlaa " . . : ' ; ,.' ~. ._ ; . . ..!"C.. ,:. . . ..~.;~..?n:,.;,, ,_ ," .L,: ' ..: ' I I. P.O. Box 36 ,, ,,,,: ,.,.:... . . Brorarw Btotlrn . St. Louis, $105cnlr1 =- %A. WO. LB - FCA Fbn. A. Dfcklooa, V?,ao huralb$

  11. Webinar: Building the Billion Ton Bioeconomy | Department of Energy

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

    Building the Billion Ton Bioeconomy Webinar: Building the Billion Ton Bioeconomy May 5, 2016 2:00PM to 4:00PM EDT Online Join the Biomass Research and Development (R&D) Board Operations Committee at a bioeconomy listening session on Thursday, May 5, 2 p.m.-4 p.m. Eastern Time. During the listening session, titled "Building a Billion Ton Bioeconomy in the United States," we encourage attendees to provide their thoughts and comments and to ask questions about the potential to grow

  12. Picture of the Week: The 100-Ton Test

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

    6 The 100-Ton Test Before the historic Trinity test on July 16th, 1945, Los Alamos scientists conducted a host of other experiments designed to ensure that they would be ready to...

  13. Bi-directional dc-dc Converter

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  14. Bi-directional dc-dc Converter

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  15. Energy Department Sponsored Project Captures One Millionth Metric Ton of

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

    CO2 | Department of Energy Sponsored Project Captures One Millionth Metric Ton of CO2 Energy Department Sponsored Project Captures One Millionth Metric Ton of CO2 June 27, 2014 - 11:09am Addthis An aerial view of Air Productsñ€™ steam methane reforming facility at Port Arthur, Texas. | Photo courtesy of Air Products and Chemicals Inc. An aerial view of Air Products' steam methane reforming facility at Port Arthur, Texas. | Photo courtesy of Air Products and Chemicals Inc. Allison Lantero

  16. DC source assemblies

    DOE Patents [OSTI]

    Campbell, Jeremy B; Newson, Steve

    2013-02-26

    Embodiments of DC source assemblies of power inverter systems of the type suitable for deployment in a vehicle having an electrically grounded chassis are provided. An embodiment of a DC source assembly comprises a housing, a DC source disposed within the housing, a first terminal, and a second terminal. The DC source also comprises a first capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the first terminal. The DC source assembly further comprises a second capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the second terminal.

  17. "(Million Metric Tons Carbon Dioxide)"

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

    Source: International Energy Outlook 2010" "Report #: DOE/EIA-0484(2010)" "application/vnd.ms-excel" "U.S. history values from this report" "U.S. projections from AEO2011, early release" "Table 4. World energy-related carbon dioxide emissions and shares by region, 1990-2035",,,,,,,,,,,,,,"Additional data for analysis" "(Million Metric Tons Carbon Dioxide)"

  18. THERMAL MODELING ANALYSIS OF SRS 70 TON CASK

    SciTech Connect (OSTI)

    Lee, S.; Jordan, J.; Hensel, S.

    2011-03-08

    The primary objective of this work was to perform the thermal calculations to evaluate the Material Test Reactor (MTR) fuel assembly temperatures inside the SRS 70-Ton Cask loaded with various bundle powers. MTR fuel consists of HFBR, MURR, MIT, and NIST. The MURR fuel was used to develop a bounding case since it is the fuel with the highest heat load. The results will be provided for technical input for the SRS 70 Ton Cask Onsite Safety Assessment. The calculation results show that for the SRS 70 ton dry cask with 2750 watts total heat source with a maximum bundle heat of 670 watts and 9 bundles of MURR bounding fuel, the highest fuel assembly temperatures are below about 263 C. Maximum top surface temperature of the plastic cover is about 112 C, much lower than its melting temperature 260 C. For 12 bundles of MURR bounding fuel with 2750 watts total heat and a maximum fuel bundle of 482 watts, the highest fuel assembly temperatures are bounded by the 9 bundle case. The component temperatures of the cask were calculated by a three-dimensional computational fluid dynamics approach. The modeling calculations were performed by considering daily-averaged solar heat flux.

  19. Washington, DC.20585

    Office of Legacy Management (LM)

    Department of ,En&gy Washington, DC.20585 , ' . The Honorable Thomas, Murphy : ,, 414 Grant.Street Pittsburgh, Pennsylvania 15219 Dear Rayor Murphy:. Secretary of Energy ...

  20. Multilevel DC link inverter

    DOE Patents [OSTI]

    Su, Gui-Jia

    2003-06-10

    A multilevel DC link inverter and method for improving torque response and current regulation in permanent magnet motors and switched reluctance motors having a low inductance includes a plurality of voltage controlled cells connected in series for applying a resulting dc voltage comprised of one or more incremental dc voltages. The cells are provided with switches for increasing the resulting applied dc voltage as speed and back EMF increase, while limiting the voltage that is applied to the commutation switches to perform PWM or dc voltage stepping functions, so as to limit current ripple in the stator windings below an acceptable level, typically 5%. Several embodiments are disclosed including inverters using IGBT's, inverters using thyristors. All of the inverters are operable in both motoring and regenerating modes.

  1. U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through...

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

    U.S. Manufacturers Save 1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments U.S. Manufacturers Save 1 Billion, 11 Million Tons of CO2 through Energy...

  2. In Milestone, Energy Department Projects Safely and Permanently Store 10 Million Metric Tons of Carbon Dioxide

    Broader source: Energy.gov [DOE]

    Carbon Capture and Storage projects supported by the Department reached a milestone of 10 million tons of carbon dioxide.

  3. Neutrino physics with multi-ton scale liquid xenon detectors

    SciTech Connect (OSTI)

    Baudis, L.; Ferella, A.; Kish, A.; Manalaysay, A.; Undagoitia, T. Marrodán; Schumann, M., E-mail: laura.baudis@physik.uzh.ch, E-mail: alfredo.ferella@lngs.infn.it, E-mail: alexkish@physik.uzh.ch, E-mail: aaronm@ucdavis.edu, E-mail: marrodan@mpi-hd.mpg.de, E-mail: marc.schumann@lhep.unibe.ch [Physik Institut, University of Zürich, Winterthurerstrasse 190, Zürich, CH-8057 (Switzerland)

    2014-01-01

    We study the sensitivity of large-scale xenon detectors to low-energy solar neutrinos, to coherent neutrino-nucleus scattering and to neutrinoless double beta decay. As a concrete example, we consider the xenon part of the proposed DARWIN (Dark Matter WIMP Search with Noble Liquids) experiment. We perform detailed Monte Carlo simulations of the expected backgrounds, considering realistic energy resolutions and thresholds in the detector. In a low-energy window of 2–30 keV, where the sensitivity to solar pp and {sup 7}Be-neutrinos is highest, an integrated pp-neutrino rate of 5900 events can be reached in a fiducial mass of 14 tons of natural xenon, after 5 years of data. The pp-neutrino flux could thus be measured with a statistical uncertainty around 1%, reaching the precision of solar model predictions. These low-energy solar neutrinos will be the limiting background to the dark matter search channel for WIMP-nucleon cross sections below ? 2 Ś 10{sup ?48} cm{sup 2} and WIMP masses around 50 GeV?c{sup ?2}, for an assumed 99.5% rejection of electronic recoils due to elastic neutrino-electron scatters. Nuclear recoils from coherent scattering of solar neutrinos will limit the sensitivity to WIMP masses below ? 6 GeV?c{sup ?2} to cross sections above ? 4 Ś 10{sup ?45}cm{sup 2}. DARWIN could reach a competitive half-life sensitivity of 5.6 Ś 10{sup 26} y to the neutrinoless double beta decay of {sup 136}Xe after 5 years of data, using 6 tons of natural xenon in the central detector region.

  4. Biography U. DĂŒsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology.

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

    U. DĂŒsterloh Degree: PD Dr.- Ing. habil. Institution: Clausthal University of Technology. Chair: chair for waste disposal technologies and geomechanics. 1982- 1988 field of study: mining engineer 1989- 1993 PhD work - geomechanical investigations on the stability of salt caverns for waste disposal. 2009 Habilitation - proof of stability and integrity of underground excavations in saliniferous formations with special regard to lab tests. 1989 - 2012 chief engineer at Clausthal University of

  5. Transportation system benefits of early deployment of a 75-ton multipurpose canister system

    SciTech Connect (OSTI)

    Wankerl, M.W.; Schmid, S.P.

    1995-12-31

    In 1993 the US Civilian Radioactive Waste Management System (CRWMS) began developing two multipurpose canister (MPC) systems to provide a standardized method for interim storage and transportation of spent nuclear fuel (SNF) at commercial nuclear power plants. One is a 75-ton concept with an estimated payload of about 6 metric tons (t) of SNF, and the other is a 125-ton concept with an estimated payload of nearly 11 t of SNF. These payloads are two to three times the payloads of the largest currently certified US rail transport casks, the IF-300. Although is it recognized that a fully developed 125-ton MPC system is likely to provide a greater cost benefit, and radiation exposure benefit than the lower-capacity 75-ton MPC, the authors of this paper suggest that development and deployment of the 75-ton MPC prior to developing and deploying a 125-ton MPC is a desirable strategy. Reasons that support this are discussed in this paper.

  6. DC attenuation meter

    DOE Patents [OSTI]

    Hargrove, Douglas L.

    2004-09-14

    A portable, hand-held meter used to measure direct current (DC) attenuation in low impedance electrical signal cables and signal attenuators. A DC voltage is applied to the signal input of the cable and feedback to the control circuit through the signal cable and attenuators. The control circuit adjusts the applied voltage to the cable until the feedback voltage equals the reference voltage. The "units" of applied voltage required at the cable input is the system attenuation value of the cable and attenuators, which makes this meter unique. The meter may be used to calibrate data signal cables, attenuators, and cable-attenuator assemblies.

  7. U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile |

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

    Department of Energy Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile September 17, 2007 - 2:41pm Addthis Declaration Reinforces U.S. Commitment to Nonproliferation VIENNA, AUSTRIA - Secretary of Energy Samuel W. Bodman today announced that the Department of Energy's National Nuclear Security Administration (NNSA) will remove nine metric tons of plutonium from further use as fissile material in U.S.

  8. Energy Cost Calculator for Commercial Heat Pumps (5.4 >=< 20 Tons) |

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

    Department of Energy Heat Pumps (5.4 >=< 20 Tons) Energy Cost Calculator for Commercial Heat Pumps (5.4 >=< 20 Tons) Vary equipment size, energy cost, hours of operation, and /or efficiency level. INPUT SECTION Input the following data (if any parameter is missing, calculator will set to default value). Defaults Project Type New Installation Replacement New Installation Condenser Type Air Source Water Source Air Source Existing Capacity * ton - Existing Cooling Efficiency * EER -

  9. Energy Department Project Captures and Stores One Million Metric Tons of

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

    Carbon | Department of Energy One Million Metric Tons of Carbon Energy Department Project Captures and Stores One Million Metric Tons of Carbon January 8, 2015 - 11:18am Addthis News Media Contact 202-586-4940 Energy Department Project Captures and Stores One Million Metric Tons of Carbon Project Achieves Major Milestone by Successfully Injecting Carbon into Saline Formation WASHINGTON - As part of President Obama's all-of-the-above energy strategy, the Department of Energy announced today

  10. Taking the One-Metric-Ton Challenge | Y-12 National Security Complex

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

    Taking the One-Metric-Ton ... Taking the One-Metric-Ton Challenge Posted: January 13, 2016 - 4:46pm NNSA Uranium Program Manager Tim Driscoll speaks with the One-Metric-Ton Challenge team in Building 9212. The team has undertaken an extensive dedicated maintenance effort to improve metal production equipment reliability and reduce unexpected down time, with an end goal of significantly increasing purified metal production by fiscal year 2017. Last year, NNSA Uranium Program Manager Tim Driscoll

  11. U.S. Billion-Ton Update. Biomass Supply for a Bioenergy and Bioproducts Industry

    SciTech Connect (OSTI)

    none,

    2011-08-01

    This report is an update to the 2005 Billion-Ton Study that addresses shotcomings and questions that arose from the original report..

  12. Disposal Facility Reaches 15-Million-Ton Milestone | Department of Energy

    Office of Environmental Management (EM)

    Disposal Facility Reaches 15-Million-Ton Milestone Disposal Facility Reaches 15-Million-Ton Milestone July 30, 2013 - 12:00pm Addthis Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the Environmental Restoration Disposal Facility. Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the

  13. U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry

    Broader source: Energy.gov [DOE]

    An update to the 2005 report, "Biomass as a Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply"

  14. Removal of 1,082-Ton Reactor Among Richland Operations Office...

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

    from groundwater across the site ahead of schedule and pumped a record volume of water through treatment facilities to remove contamination, with more than 130 tons of...

  15. DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone for Injected CO2

    Broader source: Energy.gov [DOE]

    A large-scale carbon dioxide storage project in Mississippi has become the fifth worldwide to reach the important milestone of more than 1 million tons injected.

  16. DC arc weld starter

    DOE Patents [OSTI]

    Campiotti, Richard H. (Tracy, CA); Hopwood, James E. (Oakley, CA)

    1990-01-01

    A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.

  17. DOE Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin

    Broader source: Energy.gov [DOE]

    Building on an initial injection project of 10,000 metric tons of carbon dioxide into a Michigan geologic formation, a U.S. Department of Energy team of regional partners has begun injecting 50,000 additional tons into the formation, which is believed capable of storing hundreds of years worth of CO2, a greenhouse gas that contributes to climate change.

  18. Criticality safety review of 2 1/2 -, 10-, and 14-ton UF sub 6 cylinders

    SciTech Connect (OSTI)

    Broadhead, B.L.

    1991-01-01

    The US regulations governing the packaging and transportation of UF{sub 6} cylinders are contained in the publication 10CFR71. Under the current 10CFR71 regulations, packages are classified according to Fissile Class I, II, or III and a corresponding transport index (TI). UF{sub 6} cylinders designed to contain 2{1/2}-tons of UF{sub 6} are classified as Fissile Class II packages with a TI of 5 for the purpose of transportation. The 10-ton UF{sub 6} cylinders are classified as Fissile Class I with no TI assigned for transportation. The 14-ton cylinders are not certified for transport with enrichments greater than 1 wt % since they have no approved overpack. This work reviews the suitability of 2{1/2}-ton UF{sub 6} packages for reclassification as Fissile Class I with a maximum {sup 235}U enrichment of 5 wt %. Additionally, the 10- and 14-ton cylinders are reviewed to address a change in maximum {sup 235}U enrichment from 4.5 to 5 wt %. Based on this evaluation, the 2{1/2}-ton UF{sub 6} cylinders meet the 10CFR71 criteria for Fissile Class I packages, and no TI is needed for criticality safety purposes. Similarly, the 10- and 14-ton UF{sub 6} packages appear suitable for a maximum enrichment rating change to 5 wt % {sup 235}U. 6 refs., 4 figs., 1 tab.

  19. Washingtori, DC.20585

    Office of Legacy Management (LM)

    Departmeni of &ergy' ~ ,, Washingtori, DC.20585 ,' JAM 2'3: 199: " ,, The Honorable Peter G. Lawson First Selectman P.O. Box 155 Falls Village, Connecticut '06031 Dear Mayor 'Lawson: : Secretary of Energy 'Hazel O'Leary has announced a'new approach to openness in the Department of Energy (DOE) ,and itscommunications.with the,public. In support of this initiative, we are pleased to forward the enclosed information related to the former New England'Lime Co. site in your jurisdiction that

  20. Auxiliary resonant DC tank converter

    DOE Patents [OSTI]

    Peng, Fang Z.

    2000-01-01

    An auxiliary resonant dc tank (ARDCT) converter is provided for achieving soft-switching in a power converter. An ARDCT circuit is coupled directly across a dc bus to the inverter to generate a resonant dc bus voltage, including upper and lower resonant capacitors connected in series as a resonant leg, first and second dc tank capacitors connected in series as a tank leg, and an auxiliary resonant circuit comprising a series combination of a resonant inductor and a pair of auxiliary switching devices. The ARDCT circuit further includes first clamping means for holding the resonant dc bus voltage to the dc tank voltage of the tank leg, and second clamping means for clamping the resonant dc bus voltage to zero during a resonant period. The ARDCT circuit resonantly brings the dc bus voltage to zero in order to provide a zero-voltage switching opportunity for the inverter, then quickly rebounds the dc bus voltage back to the dc tank voltage after the inverter changes state. The auxiliary switching devices are turned on and off under zero-current conditions. The ARDCT circuit only absorbs ripples of the inverter dc bus current, thus having less current stress. In addition, since the ARDCT circuit is coupled in parallel with the dc power supply and the inverter for merely assisting soft-switching of the inverter without participating in real dc power transmission and power conversion, malfunction and failure of the tank circuit will not affect the functional operation of the inverter; thus a highly reliable converter system is expected.

  1. Why did they blow up 100 tons of TNT before the Trinity Test?

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

    Why did they blow up 100 tons of TNT before the Trinity Test? At the Bradbury Latest Issue:May 2016 all issues All Issues » submit Why did they blow up 100 tons of TNT before the Trinity Test? Science question of the month May 1, 2016 Sometimes people ask us a question and we try to answer them How do you calibrate instruments for a test that's never been done before? Great question. The 100-ton test was performed before the Trinity test to calibrate instruments prepared to explore the expected

  2. Photo of the Week: Smashing Atoms with 80-ton Magnets | Department of

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

    Energy Smashing Atoms with 80-ton Magnets Photo of the Week: Smashing Atoms with 80-ton Magnets April 11, 2014 - 1:32pm Addthis The cyclotron, invented by Ernest Lawrence in the 1930s, is a unique circular particle accelerator, which Lawrence himself referred to as a "proton merry-go-round." In reality, the cyclotron specialized in smashing atoms. Part of this atom-smashing process requires very large, very heavy magnets -- sometimes weighing up to 220 tons. In this photo, workers

  3. Billion-Ton Update: Home-Grown Energy Resources Across the Nation |

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

    Department of Energy Billion-Ton Update: Home-Grown Energy Resources Across the Nation Billion-Ton Update: Home-Grown Energy Resources Across the Nation August 11, 2011 - 3:59pm Addthis Total potential biomass resources by county in the contiguous U.S. from the baseline scenario of the Update (Figure 6.4, page 159) | Map from Billion-Ton Update Total potential biomass resources by county in the contiguous U.S. from the baseline scenario of the Update (Figure 6.4, page 159) | Map from

  4. D-C electric arc furnace -- A trend-setting technology in steelmaking

    SciTech Connect (OSTI)

    Muller, H.G.; Patuzzi, A.A. ); Nix, E.H. )

    1994-05-01

    Advantages of the d-c furnace in comparison with the a-c system include: a major reduction in electrode consumption; lower power consumption; less flicker; and improved temperature and composition control. Of the four basic types of bottom electrode (anode) design, the fin-type system provides closer control of arc behavior. With a current maximum tapping weight of 150 tons, full potential is limited by the maximum diameter of available electrodes.

  5. Improved DC Gun Insulator

    SciTech Connect (OSTI)

    M.L. Neubauer, K.B. Beard, R. Sah, C. Hernandez-Garcia, G. Neil

    2009-05-01

    Many user facilities such as synchrotron light sources and free electron lasers require accelerating structures that support electric fields of 10-100 MV/m, especially at the start of the accelerator chain where ceramic insulators are used for very high gradient DC guns. These insulators are difficult to manufacture, require long commissioning times, and have poor reliability, in part because energetic electrons bury themselves in the ceramic, creating a buildup of charge and causing eventual puncture. A novel ceramic manufacturing process is proposed. It will incorporate bulk resistivity in the region where it is needed to bleed off accumulated charge caused by highly energetic electrons. This process will be optimized to provide an appropriate gradient in bulk resistivity from the vacuum side to the air side of the HV standoff ceramic cylinder. A computer model will be used to determine the optimum cylinder dimensions and required resistivity gradient for an example RF gun application. A ceramic material example with resistivity gradient appropriate for use as a DC gun insulator will be fabricated by glazing using doping compounds and tested.

  6. 11,202,720 Metric Tons of CO2 Injected as of October 14, 2015

    Office of Energy Efficiency and Renewable Energy (EERE)

    This carbon dioxide (CO2) has been injected in the United States as part of DOE’s Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is equivalent to the...

  7. Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery Act Funds

    Broader source: Energy.gov [DOE]

    The Moab Uranium Mill Tailings Remedial Action Project reached its primary American Recovery and Reinvestment Act milestone ahead of schedule on Wednesday with the disposal of 2 million tons of...

  8. Hanford Landfill Reaches 15 Million Tons Disposed- Waste Disposal Mark Shows Success Cleaning Up River Corridor

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – The U.S. Department of Energy (DOE) and its contractors have disposed of 15 million tons of contaminated material at the Environmental Restoration Disposal Facility (ERDF) since the facility began operations in 1996.

  9. DOE Moab Project Safely Removes 7 Million Tons of Mill Tailings

    Broader source: Energy.gov [DOE]

    (Grand Junction, CO) ― The U.S. Department of Energy (DOE) has safely moved another million tons of uranium mill tailings from the Moab site in Utah under the Uranium Mill Tailings Remedial Action Project.

  10. 11,202,720 Metric Tons of CO2 Injected as of October 14, 2015...

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

    This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is ...

  11. Long-term Decline of Aggregate Fuel Use per Cargo-ton-mile of...

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

    Long-term Decline of Aggregate Fuel Use per Cargo-ton-mile of Commercial Trucking; A Key Enabler of Expanded U.S. Trade and Economic Growth Poster presentation at the 2007 Diesel ...

  12. DC Wafers | Open Energy Information

    Open Energy Info (EERE)

    Wafers Jump to: navigation, search Name: DC Wafers Place: Leon, Spain Product: Spanish manufacturer of multicrystalline silicon wafers. Planning a 30MW wafer slicing line in Leon,...

  13. DOE Announces Webinars on Building a Billion Ton Bioeconomy and an

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

    Opportunity in Innovative Sensors | Department of Energy Building a Billion Ton Bioeconomy and an Opportunity in Innovative Sensors DOE Announces Webinars on Building a Billion Ton Bioeconomy and an Opportunity in Innovative Sensors May 5, 2016 - 9:06am Addthis EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies, to training for the clean energy workforce. Webinars are free; however, advanced registration is

  14. U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy

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

    Efficiency Investments | Department of Energy Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments September 25, 2013 - 12:00pm Addthis News Media Contact (202) 586-4940 WASHINGTON - Underscoring the Obama Administration's efforts to double energy productivity by 2030 and help businesses save money and energy, the Energy Department today recognized more than

  15. 1,153-ton Waste Vault Removed from 300 Area - Vault held waste tanks with

    Energy Savers [EERE]

    contamination from Hanford's former laboratory facilities | Department of Energy 1,153-ton Waste Vault Removed from 300 Area - Vault held waste tanks with contamination from Hanford's former laboratory facilities 1,153-ton Waste Vault Removed from 300 Area - Vault held waste tanks with contamination from Hanford's former laboratory facilities February 14, 2014 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE 509-376-5365, Cameron.Hardy@rl.doe.gov Mark McKenna, Washington Closure

  16. Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project

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

    Accomplishes Milestone While Doing it Safely | Department of Energy Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely February 27, 2012 - 12:00pm Addthis Media Contacts Donald Metzler, Moab Federal Project Director, (970) 257-2115 Wendee Ryan, S&K Aerospace Public Affairs Manager, (970) 257-2145

  17. SO2907, A Putative TonB-dependent Receptor, Is Involved in Dissimilatory

    Office of Scientific and Technical Information (OSTI)

    Iron Reduction by Shewanella oneidensis Strain MR-1 (Journal Article) | SciTech Connect Journal Article: SO2907, A Putative TonB-dependent Receptor, Is Involved in Dissimilatory Iron Reduction by Shewanella oneidensis Strain MR-1 Citation Details In-Document Search Title: SO2907, A Putative TonB-dependent Receptor, Is Involved in Dissimilatory Iron Reduction by Shewanella oneidensis Strain MR-1 Shewanella oneidensis strain MR-1 utilizes soluble and insoluble ferric ions as terminal electron

  18. Triple voltage dc-to-dc converter and method

    DOE Patents [OSTI]

    Su, Gui-Jia

    2008-08-05

    A circuit and method of providing three dc voltage buses and transforming power between a low voltage dc converter and a high voltage dc converter, by coupling a primary dc power circuit and a secondary dc power circuit through an isolation transformer; providing the gating signals to power semiconductor switches in the primary and secondary circuits to control power flow between the primary and secondary circuits and by controlling a phase shift between the primary voltage and the secondary voltage. The primary dc power circuit and the secondary dc power circuit each further comprising at least two tank capacitances arranged in series as a tank leg, at least two resonant switching devices arranged in series with each other and arranged in parallel with the tank leg, and at least one voltage source arranged in parallel with the tank leg and the resonant switching devices, said resonant switching devices including power semiconductor switches that are operated by gating signals. Additional embodiments having a center-tapped battery on the low voltage side and a plurality of modules on both the low voltage side and the high voltage side are also disclosed for the purpose of reducing ripple current and for reducing the size of the components.

  19. Bi-Directional DC-DC Converter for PHEV Applications

    SciTech Connect (OSTI)

    Abas Goodarzi

    2011-01-31

    Plug-In Hybrid Electric Vehicles (PHEV) require high power density energy storage system (ESS) for hybrid operation and high energy density ESS for Electric Vehicle (EV) mode range. However, ESS technologies to maximize power density and energy density simultaneously are not commercially feasible. The use of bi-directional DC-DC converter allows use of multiple energy storage, and the flexible DC-link voltages can enhance the system efficiency and reduce component sizing. This will improve fuel consumption, increase the EV mode range, reduce the total weight, reduce battery initial and life cycle cost, and provide flexibility in system design.

  20. Washington DC | OpenEI Community

    Open Energy Info (EERE)

    DC Home Linked Open Data Workshop in Washington, D.C. Description: A group organizing the LOD workshop in Washington, D.C. in fall 2012 A follow-up event to the successful LOD...

  1. D.C. | OpenEI Community

    Open Energy Info (EERE)

    D.C. Home Kyoung's picture Submitted by Kyoung(150) Contributor 6 September, 2012 - 08:51 GRR Update Meeting scheduled for 913 in D.C. D.C. GRR meeting update The next Geothermal...

  2. Good Energies (Washington DC) | Open Energy Information

    Open Energy Info (EERE)

    Good Energies (Washington DC) Name: Good Energies (Washington DC) Address: 1250 24th St., NW, Suite 250 Place: Washington, District of Columbia Zip: 20037 Product: Global investor...

  3. Y-12's rough roads smoothed over with 23,000 tons of recycled asphalt |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration Home / Blog Y-12's rough roads smoothed over with 23,000 tons of recycled asphalt Tuesday, December 29, 2015 - 12:00am NNSA Blog Some 23,000 tons of asphalt removed during this summer's UPF site work have been put to use throughout the site. Potholes and gravel roads are now "paved" with the recycled asphalt that has been ground into a material called base course. Unlike gravel, the material tends to rebind into a solid form as it is packed

  4. DC Pro Software Tool Suite

    SciTech Connect (OSTI)

    2009-04-01

    This fact sheet describes how DOE's Data Center Energy Profiler (DC Pro) Software Tool Suite and other resources can help U.S. companies identify ways to improve the efficiency of their data centers.

  5. Planning for the 400,000 tons/year AISI ironmaking demonstration plant

    SciTech Connect (OSTI)

    Aukrust, E. . AISI Direct Steelmaking Program)

    1993-01-01

    The American Iron and Steel Institute (AISI) has formulated a four-year program to design, construct, and operate a 400,000 net ton per year ironmaking demonstration plant. The plant will employ the coal-based ironmaking process developed under a 1989 cooperative agreement with DOE. AISI will manage the design and construction to be completed in the first two years and operate the plant for the second two years with a variety or ores, coals, and fluxes. Campaigns of increasing length are planned to optimize operations. After successful operation, the plant will be taken over by the host company. Results of studies to date indicate that, on a commercial scale, the AISI process will use 27% less energy and have variable operating costs $10 per ton lower and capital costs of $160 per annual ton, compared to the $250 per annual ton rebuild cost for the coke oven-blast furnace process it will replace. The process will enable the domestic steel industry to become more competitive by reducing its capital and operating cost. Furthermore, by eliminating the pollution problems associated with coke production and by completely enclosing the smelting reactions, this process represents a major step towards an environmentally friendly steel industry.

  6. Catalog of DC Appliances and Power Systems

    SciTech Connect (OSTI)

    Garbesi, Karina; Vossos, Vagelis; Shen, Hongxia

    2010-10-13

    This document catalogs the characteristics of current and potential future DC products and power systems.

  7. Light-weight DC to very high voltage DC converter

    DOE Patents [OSTI]

    Druce, R.L.; Kirbie, H.C.; Newton, M.A.

    1998-06-30

    A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current. 1 fig.

  8. Light-weight DC to very high voltage DC converter

    DOE Patents [OSTI]

    Druce, Robert L.; Kirbie, Hugh C.; Newton, Mark A.

    1998-01-01

    A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current.

  9. Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants

    DOE Patents [OSTI]

    Agamy, Mohammed; Elasser, Ahmed; Sabate, Juan Antonio; Galbraith, Anthony William; Harfman Todorovic, Maja

    2014-09-09

    A distributed photovoltaic (PV) power plant includes a plurality of distributed dc-dc converters. The dc-dc converters are configured to switch in coordination with one another such that at least one dc-dc converter transfers power to a common dc-bus based upon the total system power available from one or more corresponding strings of PV modules. Due to the coordinated switching of the dc-dc converters, each dc-dc converter transferring power to the common dc-bus continues to operate within its optimal efficiency range as well as to optimize the maximum power point tracking in order to increase the energy yield of the PV power plant.

  10. How well will ton-scale dark matter direct detection experiments constrain minimal supersymmetry?

    SciTech Connect (OSTI)

    Akrami, Yashar; Savage, Christopher; Scott, Pat; Conrad, Jan; Edsjö, Joakim E-mail: savage@fysik.su.se E-mail: conrad@fysik.su.se

    2011-04-01

    Weakly interacting massive particles (WIMPs) are amongst the most interesting dark matter (DM) candidates. Many DM candidates naturally arise in theories beyond the standard model (SM) of particle physics, like weak-scale supersymmetry (SUSY). Experiments aim to detect WIMPs by scattering, annihilation or direct production, and thereby determine the underlying theory to which they belong, along with its parameters. Here we examine the prospects for further constraining the Constrained Minimal Supersymmetric Standard Model (CMSSM) with future ton-scale direct detection experiments. We consider ton-scale extrapolations of three current experiments: CDMS, XENON and COUPP, with 1000 kg-years of raw exposure each. We assume energy resolutions, energy ranges and efficiencies similar to the current versions of the experiments, and include backgrounds at target levels. Our analysis is based on full likelihood constructions for the experiments. We also take into account present uncertainties on hadronic matrix elements for neutralino-quark couplings, and on halo model parameters. We generate synthetic data based on four benchmark points and scan over the CMSSM parameter space using nested sampling. We construct both Bayesian posterior PDFs and frequentist profile likelihoods for the model parameters, as well as the mass and various cross-sections of the lightest neutralino. Future ton-scale experiments will help substantially in constraining supersymmetry, especially when results of experiments primarily targeting spin-dependent nuclear scattering are combined with those directed more toward spin-independent interactions.

  11. DC to DC power converters and methods of controlling the same

    DOE Patents [OSTI]

    Steigerwald, Robert Louis; Elasser, Ahmed; Sabate, Juan Antonio; Todorovic, Maja Harfman; Agamy, Mohammed

    2012-12-11

    A power generation system configured to provide direct current (DC) power to a DC link is described. The system includes a first power generation unit configured to output DC power. The system also includes a first DC to DC converter comprising an input section and an output section. The output section of the first DC to DC converter is coupled in series with the first power generation unit. The first DC to DC converter is configured to process a first portion of the DC power output by the first power generation unit and to provide an unprocessed second portion of the DC power output of the first power generation unit to the output section.

  12. What is the deal with DC Microgrids?

    Energy Savers [EERE]

    2015 Acuity Brands What is the deal with DC Microgrids? and why would a Lighting company care? Yan Rodriguez VP Product and Technology 2015 Acuity Brands * Why DC Microgrids? *...

  13. ARM - Campaign Instrument - dc8-nasa

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

    ...strumentsdc8-nasa Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NASA DC-8 (DC8-NASA) Instrument Categories ...

  14. Ecological benefits of dc power transmission

    SciTech Connect (OSTI)

    Kutuzova, N. B.

    2011-05-15

    The environmental effects of dc overhead transmission lines are examined. The major effects of ac and dc transmission lines are compared. Dc lines have advantages compared to ac lines in terms of electrical safety for people under the lines, biological effects, corona losses, and clearance width.

  15. Criticality Safety Review of 2 1/2-, 10-, and 14-Ton UF(Sub 6) Cylinders

    SciTech Connect (OSTI)

    Broadhead, B.L.

    1991-01-01

    Currently, UF{sub 6} cylinders designed to contain 2 1/2 tons of UF{sub 6} are classified as Fissile Class II packages with a transport index (TI) of 5 for the purpose of transportation. The 10-ton UF{sub 6} cylinders are classified as Fissile Class I with no TI assigned for transportation. The 14-ton cylinders, although not certified for transport with enrichments greater than 1 wt % because they have no approved overpack, can be used in on-site operations for enrichments greater than 1 wt %. The maximum 235U enrichments for these cylinders are 5.0 wt % for the 2 1/2-ton cylinder and 4.5 wt % for the 10- and 14-ton cylinders. This work reviews the suitability for reclassification of the 2 1/2-ton UF{sub 6} packages as Fissile Class I with a maximum {sup 235}U enrichment of 5 wt %. Additionally, the 10- and 14-ton cylinders are reviewed to address a change in maximum {sup 235}U enrichment from 4.5 to 5 wt %. Based on this evaluation, the 2 1/2-ton UF{sub 6} cylinders meet the 10 CFR.71 criteria for Fissile Class I packages, and no TI is needed for criticality safety purposes; however, a TI may be required based on radiation from the packages. Similarly, the 10- and 14-ton UF{sub 6} packages appear acceptable for a maximum enrichment rating change to 5 wt % {sup 235}U.

  16. Newseum Washington, D.C.

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

    , 2016 Newseum Washington, D.C. Shaping the future of the marine and hydrokinetic energy industry EXECUTIVE SUMMIT ON MARINE AND HYDROKINETIC RESEARCH AND DEVELOPMENT LETTER FROM THE DIRECTOR Dear Industry Executive, I would like to take this opportunity to personally welcome you to the Executive Summit on Marine and Hydrokinetic (MHK) Research and Development presented by the U.S. Department of Energy Wind and Water Power Technologies Office. We are excited to bring together executive members

  17. Table 11.4 Nitrous Oxide Emissions, 1980-2009 (Thousand Metric Tons of Nitrous Oxide)

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

    Nitrous Oxide Emissions, 1980-2009 (Thousand Metric Tons of Nitrous Oxide) Year Energy Sources Waste Management Agricultural Sources Industrial Processes 3 Total Mobile Combustion 1 Stationary Combustion 2 Total Waste Combustion Human Sewage in Wastewater Total Nitrogen Fertilization of Soils Crop Residue Burning Solid Waste of Domesticated Animals Total 1980 60 44 104 1 10 11 364 1 75 440 88 642 1981 63 44 106 1 10 11 364 2 74 440 84 641 1982 67 42 108 1 10 11 339 2 74 414 80 614 1983 71 43 114

  18. U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry

    SciTech Connect (OSTI)

    Downing, Mark; Eaton, Laurence M; Graham, Robin Lambert; Langholtz, Matthew H; Perlack, Robert D; Turhollow Jr, Anthony F; Stokes, Bryce; Brandt, Craig C

    2011-08-01

    The report, Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply (generally referred to as the Billion-Ton Study or 2005 BTS), was an estimate of 'potential' biomass based on numerous assumptions about current and future inventory, production capacity, availability, and technology. The analysis was made to determine if conterminous U.S. agriculture and forestry resources had the capability to produce at least one billion dry tons of sustainable biomass annually to displace 30% or more of the nation's present petroleum consumption. An effort was made to use conservative estimates to assure confidence in having sufficient supply to reach the goal. The potential biomass was projected to be reasonably available around mid-century when large-scale biorefineries are likely to exist. The study emphasized primary sources of forest- and agriculture-derived biomass, such as logging residues, fuel treatment thinnings, crop residues, and perennially grown grasses and trees. These primary sources have the greatest potential to supply large, reliable, and sustainable quantities of biomass. While the primary sources were emphasized, estimates of secondary residue and tertiary waste resources of biomass were also provided. The original Billion-Ton Resource Assessment, published in 2005, was divided into two parts-forest-derived resources and agriculture-derived resources. The forest resources included residues produced during the harvesting of merchantable timber, forest residues, and small-diameter trees that could become available through initiatives to reduce fire hazards and improve forest health; forest residues from land conversion; fuelwood extracted from forests; residues generated at primary forest product processing mills; and urban wood wastes, municipal solid wastes (MSW), and construction and demolition (C&D) debris. For these forest resources, only residues, wastes, and small-diameter trees were considered. The 2005 BTS did not attempt to include any wood that would normally be used for higher-valued products (e.g., pulpwood) that could potentially shift to bioenergy applications. This would have required a separate economic analysis, which was not part of the 2005 BTS. The agriculture resources in the 2005 BTS included grains used for biofuels production; crop residues derived primarily from corn, wheat, and small grains; and animal manures and other residues. The cropland resource analysis also included estimates of perennial energy crops (e.g., herbaceous grasses, such as switchgrass, woody crops like hybrid poplar, as well as willow grown under short rotations and more intensive management than conventional plantation forests). Woody crops were included under cropland resources because it was assumed that they would be grown on a combination of cropland and pasture rather than forestland. In the 2005 BTS, current resource availability was estimated at 278 million dry tons annually from forestlands and slightly more than 194 million dry tons annually from croplands. These annual quantities increase to about 370 million dry tons from forestlands and to nearly 1 billion dry tons from croplands under scenario conditions of high-yield growth and large-scale plantings of perennial grasses and woody tree crops. This high-yield scenario reflects a mid-century timescale ({approx}2040-2050). Under conditions of lower-yield growth, estimated resource potential was projected to be about 320 and 580 million dry tons for forest and cropland biomass, respectively. As noted earlier, the 2005 BTS emphasized the primary resources (agricultural and forestry residues and energy crops) because they represent nearly 80% of the long-term resource potential. Since publication of the BTS in April 2005, there have been some rather dramatic changes in energy markets. In fact, just prior to the actual publication of the BTS, world oil prices started to increase as a result of a burgeoning worldwide demand and concerns about long-term supplies. By the end of the summer, oil prices topped $70 per barrel (bbl) and catastrophic hurricanes in the Gulf Coast shut down a significant fraction of U.S. refinery capacity. The following year, oil approached $80 per bbl due to supply concerns, as well as continued political tensions in the Middle East. The Energy Independence and Security Act of 2007 (EISA) was enacted in December of that year. By the end of December 2007, oil prices surpassed $100 per bbl for the first time, and by mid-summer 2008, prices approached $150 per bbl because of supply concerns, speculation, and weakness of the U.S. dollar. As fast as they skyrocketed, oil prices fell, and by the end of 2008, oil prices dropped below $50 per bbl, falling even more a month later due to the global economic recession. In 2009 and 2010, oil prices began to increase again as a result of a weak U.S. dollar and the rebounding of world economies.

  19. Occidental Chemical's Energy From Waste facility: 3,000,000 tons later

    SciTech Connect (OSTI)

    Blasins, G.F. )

    1988-01-01

    Occidental Chemical's Energy From Waste's cogeneration facility continues to be one of the most successful RDF plants in the U.S. The facility began operation in 1980 and was an operational success after a lengthy 2-1/2 year start-up and redesign, utilizing the air classification technology to produce RDF. In 1984, the plant was converted to a simplified shred and burn concept, significantly improving overall economics and viability of the operation. After processing 3.0 million tons the facility is a mature operation with a well developed experience base in long range operation and maintenance of the equipment utilized for processing and incinerating municipal solid waste.

  20. An ounce of prevention, a ton of cure | Y-12 National Security Complex

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

    An ounce of prevention, a ... An ounce of prevention, a ton of cure Posted: June 24, 2015 - 3:11pm Aaron Spoon of Power Operations performs maintenance on 13.8 kV transformers 145 and 145A. Photo by Scott Fraker Y-12 recently saved time, taxpayer dollars, effort and potential injuries by taking a 72-hour planned simultaneous outage of power, steam and air systems. The weekend outage allowed a small army of Y-12 infrastructure, facilities and utilities workers to make repairs and perform

  1. EA-377 DC Energy Texas LLC | Department of Energy

    Energy Savers [EERE]

    7 DC Energy Texas LLC EA-377 DC Energy Texas LLC Order authorizing DC Energy Texas LLC to export electric energy to Mexico. PDF icon EA-377 DC Energy Texas LLC More Documents & ...

  2. Table 11.3 Methane Emissions, 1980-2009 (Million Metric Tons of Methane)

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

    Methane Emissions, 1980-2009 (Million Metric Tons of Methane) Year Energy Sources Waste Management Agricultural Sources Industrial Processes 9 Total 5 Coal Mining Natural Gas Systems 1 Petroleum Systems 2 Mobile Com- bustion 3 Stationary Com- bustion 4 Total 5 Landfills Waste- water Treatment 6 Total 5 Enteric Fermen- tation 7 Animal Waste 8 Rice Cultivation Crop Residue Burning Total 5 1980 3.06 4.42 NA 0.28 0.45 8.20 10.52 0.52 11.04 5.47 2.87 0.48 0.04 8.86 0.17 28.27 1981 2.81 5.02 NA .27

  3. Table 4.8 Coal Demonstrated Reserve Base, January 1, 2011 (Billion Short Tons)

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

    8 Coal Demonstrated Reserve Base, January 1, 2011 (Billion Short Tons) Region and State Anthracite Bituminous Coal Subbituminous Coal Lignite Total Underground Surface Underground Surface Underground Surface Surface 1 Underground Surface Total Appalachian 4.0 3.3 68.2 21.9 0.0 0.0 1.1 72.1 26.3 98.4 Alabama .0 .0 .9 2.1 .0 .0 1.1 .9 3.1 4.0 Kentucky, Eastern .0 .0 .8 9.1 .0 .0 .0 .8 9.1 9.8 Ohio .0 .0 17.4 5.7 .0 .0 .0 17.4 5.7 23.1 Pennsylvania 3.8 3.3 18.9 .8 .0 .0 .0 22.7 4.2 26.9 Virginia .1

  4. Table 7.2 Coal Production, 1949-2011 (Short Tons)

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

    Coal Production, 1949-2011 (Short Tons) Year Rank Mining Method Location Total 1 Bituminous Coal 1 Subbituminous Coal Lignite Anthracite 1 Underground Surface 1 East of the Mississippi 1 West of the Mississippi 1 1949 437,868,000 [2] [2] 42,702,000 358,854,000 121,716,000 444,199,000 36,371,000 480,570,000 1950 516,311,000 [2] [2] 44,077,000 421,000,000 139,388,000 524,374,000 36,014,000 560,388,000 1951 533,665,000 [2] [2] 42,670,000 442,184,000 134,151,000 541,703,000 34,632,000 576,335,000

  5. Table 7.4 Coal Imports by Country of Origin, 2000-2011 (Short Tons)

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

    Coal Imports by Country of Origin, 2000-2011 (Short Tons) Year Australia New Zealand Canada Mexico Colombia Venezuela China India Indonesia Europe South Africa Other Total Norway Poland Russia Ukraine United Kingdom Other Total 2000 167,595 0 1,923,434 6,671 7,636,614 2,038,774 19,646 205 718,149 0 0 1,212 0 238 0 1,450 0 85 12,512,623 2001 315,870 24,178 2,571,415 8,325 11,176,191 3,335,258 109,877 1,169 882,455 15,933 514,166 219,077 0 75,704 12 824,892 440,408 97,261 19,787,299 2002 821,280 0

  6. Table 7.5 Coal Exports by Country of Destination, 1960-2011 (Thousand Short Tons)

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

    Coal Exports by Country of Destination, 1960-2011 (Thousand Short Tons) Year Canada Brazil Europe Japan Other 3 Total Belgium 1 Denmark France Germany 2 Italy Nether- lands Spain Turkey United Kingdom Other 3 Total 1960 12,843 1,067 1,116 130 794 4,566 4,899 2,837 331 NA – 2,440 17,113 5,617 1,341 37,981 1961 12,135 994 971 80 708 4,326 4,797 2,552 228 NA – 2,026 15,688 6,614 974 36,405 1962 12,302 1,327 1,289 38 851 5,056 5,978 3,320 766 NA 2 1,848 19,148 6,465 973 40,215 1963 14,557 1,161

  7. Table 7.7 Coal Mining Productivity, 1949-2011 (Short Tons per Employee Hour )

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

    Coal Mining Productivity, 1949-2011 (Short Tons per Employee Hour 1) Year Mining Method Location Total 2 Underground Surface 2 East of the Mississippi West of the Mississippi Underground Surface 2 Total 2 Underground Surface 2 Total 2 1949 0.68 [3] 1.92 [3] NA NA NA NA NA NA 0.72 1950 .72 [3] 1.96 [3] NA NA NA NA NA NA .76 1951 .76 [3] 2.00 [3] NA NA NA NA NA NA .80 1952 .80 [3] 2.10 [3] NA NA NA NA NA NA .84 1953 .88 [3] 2.22 [3] NA NA NA NA NA NA .93 1954 1.00 [3] 2.48 [3] NA NA NA NA NA NA

  8. Table 7.8 Coke Overview, 1949-2011 (Thousand Short Tons)

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

    Coke Overview, 1949-2011 (Thousand Short Tons) Year Production Trade Stock Change 2 Consumption 3 Imports Exports Net Imports 1 1949 63,637 279 548 -269 176 63,192 1950 72,718 438 398 40 -659 73,417 1951 79,331 162 1,027 -865 372 78,094 1952 68,254 313 792 -479 419 67,356 1953 78,837 157 520 -363 778 77,696 1954 59,662 116 388 -272 269 59,121 1955 75,302 126 531 -405 -1,248 76,145 1956 74,483 131 656 -525 634 73,324 1957 75,951 118 822 -704 814 74,433 1958 53,604 122 393 -271 675 52,658 1959

  9. Table 7.9 Coal Prices, 1949-2011 (Dollars per Short Ton)

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

    Coal Prices, 1949-2011 (Dollars per Short Ton) Year Bituminous Coal Subbituminous Coal Lignite 1 Anthracite Total Nominal 2 Real 3 Nominal 2 Real 3 Nominal 2 Real 3 Nominal 2 Real 3 Nominal 2 Real 3 1949 4.90 [4] 33.80 [4,R] [4] [4] 2.37 16.35 [R] 8.90 61.38 [R] 5.24 36.14 [R] 1950 4.86 [4] 33.16 [4,R] [4] [4] 2.41 16.44 [R] 9.34 63.73 [R] 5.19 35.41 [R] 1951 4.94 [4] 31.44 [4,R] [4] [4] 2.44 15.53 [R] 9.94 63.26 [R] 5.29 33.67 [R] 1952 4.92 [4] 30.78 [4,R] [4] [4] 2.39 14.95 [R] 9.58 59.94 [R]

  10. Cracked lifting lug welds on ten-ton UF{sub 6} cylinders

    SciTech Connect (OSTI)

    Dorning, R.E.

    1991-12-31

    Ten-ton, Type 48X, UF{sub 6} cylinders are used at the Portsmouth Gaseous Diffusion Plant to withdraw enriched uranium hexafluoride from the cascade, transfer enriched uranium hexafluoride to customer cylinders, and feed enriched product to the cascade. To accomplish these activities, the cylinders are lifted by cranes and straddle carriers which engage the cylinder lifting lugs. In August of 1988, weld cracks on two lifting lugs were discovered during preparation to lift a cylinder. The cylinder was rejected and tagged out, and an investigating committee formed to determine the cause of cracking and recommend remedial actions. Further investigation revealed the problem may be general to this class of cylinder in this use cycle. This paper discusses the actions taken at the Portsmouth site to deal with the cracked lifting lug weld problem. The actions include inspection activities, interim corrective actions, metallurgical evaluation of cracked welds, weld repairs, and current monitoring/inspection program.

  11. Dynamic performance testing of prototype 3 ton air-cooled carrier absorption chiller

    SciTech Connect (OSTI)

    Borst, R.R.; Wood, B.D.

    1985-05-01

    The performance of a prototype 3 ton cooling capacity air-cooled lithium bromide/water absorption chiller was tested using an absorption chiller test facility which was modified to expand its testing capabilities to include air-cooled chillers in addition to water-cooled chillers. Temperatures of the three externally supplied fluid loops: hot water, chilled water, and cooling air, were varied in order to determine the effects this would have on the two principal measures of chiller performance: cooling capacity and thermal coefficient of performance (COP). A number of interrelated factors were identified as contributing to less than expected performance. For comparison, experimental correlations of other investigators for this and other similar absorption chillers are presented. These have been plotted as both contour and three-dimensional performance maps in order to more clearly show the functional dependence of the chiller performance on the fluid loop temperatures.

  12. DC Survey 2013 | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Management / Aerial Measuring System DC Survey 2013 DC Background Survey (.zip) DC 2013 survey Related Topics ams Emergency Response Related News Department of Energy's chief risk officer visits Nevada National Security Site NNSA sites prepared for disasters using real-time response management system NNSA emergency response assets highlighted NNSA displays helicopter in Baltimore NNSA to Conduct Aerial Radiation Monitoring Survey over Boston April 17-20

  13. Washington, D.C. Office | NREL

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

    Office NREL's Washington, D.C. office provides energy analysis and technical program support to the U.S. Department of Energy. View Larger Map National Renewable Energy Laboratory - D.C. Office 901 D Street, SW (also 370 L'Enfant Promenade, adjacent to the Forrestal building) Suite 930 Washington, D.C., 20024 202-488-2200 D.C. Visitor Information See local information to plan your trip. Security Procedures Building security will accept HSPD-12 badges (recognizable by gold chip on front) or valid

  14. SSL Demonstration: Parking Garage Lighting, Washington, DC

    SciTech Connect (OSTI)

    2013-06-01

    GATEWAY program report brief summarizing an SSL parking garage demonstration at the Dept. of Labor headquarters parking garage in Washington, DC.

  15. Glass Ceramic Dielectrics for DC Bus Capacitors

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  16. Simultaneous distribution of AC and DC power

    DOE Patents [OSTI]

    Polese, Luigi Gentile

    2015-09-15

    A system and method for the transport and distribution of both AC (alternating current) power and DC (direct current) power over wiring infrastructure normally used for distributing AC power only, for example, residential and/or commercial buildings' electrical wires is disclosed and taught. The system and method permits the combining of AC and DC power sources and the simultaneous distribution of the resulting power over the same wiring. At the utilization site a complementary device permits the separation of the DC power from the AC power and their reconstruction, for use in conventional AC-only and DC-only devices.

  17. High voltage DC power supply

    DOE Patents [OSTI]

    Droege, Thomas F.

    1989-01-01

    A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively.

  18. High voltage DC power supply

    DOE Patents [OSTI]

    Droege, T.F.

    1989-12-19

    A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively. 7 figs.

  19. DC-based magnetic field controller

    DOE Patents [OSTI]

    Kotter, Dale K.; Rankin, Richard A.; Morgan, John P,.

    1994-01-01

    A magnetic field controller for laboratory devices and in particular to dc operated magnetic field controllers for mass spectrometers, comprising a dc power supply in combination with improvements to a hall probe subsystem, display subsystem, preamplifier, field control subsystem, and an output stage.

  20. DC-based magnetic field controller

    DOE Patents [OSTI]

    Kotter, D.K.; Rankin, R.A.; Morgan, J.P.

    1994-05-31

    A magnetic field controller is described for laboratory devices and in particular to dc operated magnetic field controllers for mass spectrometers, comprising a dc power supply in combination with improvements to a Hall probe subsystem, display subsystem, preamplifier, field control subsystem, and an output stage. 1 fig.

  1. Performance and results of the LBNE 35 ton membrane cryostat prototype

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Montanari, David; Adamowski, Mark; Hahn, Alan; Norris, Barry; Reichenbacher, Juergen; Rucinski, Russell; Stewart, Jim; Tope, Terry

    2015-07-15

    We report on the performance and commissioning of the first membrane cryostat to be used for scientific application. The Long Baseline Neutrino Experiment (LBNE) has designed and fabricated a membrane cryostat prototype in collaboration with Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI). LBNE has designed and fabricated the supporting cryogenic system infrastructure and successfully commissioned and operated the first membrane cryostat. Original goals of the prototype are: to demonstrate the membrane cryostat technology in terms of thermal performance, feasibility for liquid argon and leak tightness; to demonstrate that we can remove all the impurities from the vessel and achieve the puritymore » requirements in a membrane cryostat without evacuation; to demonstrate that we can achieve and maintain the purity requirements of the liquid argon using mol sieve and copper filters. The purity requirements of a large liquid argon detector such as LBNE are contaminants below 200 parts per trillion (ppt) oxygen equivalent. LBNE is planning the design and construction of a large liquid argon detector. This presentation will present requirements, design and construction of the LBNE 35 ton membrane cryostat prototype, and detail the commissioning and performance. The experience and results of this prototype are extremely important for the development of the LBNE detector.« less

  2. High temperature experiments on a 4 tons UF6 container TENERIFE program

    SciTech Connect (OSTI)

    Casselman, C.; Duret, B.; Seiler, J.M.; Ringot, C.; Warniez, P.

    1991-12-31

    The paper presents an experimental program (called TENERIFE) whose aim is to investigate the behaviour of a cylinder containing UF{sub 6} when exposed to a high temperature fire for model validation. Taking into account the experiments performed in the past, the modelization needs further information in order to be able to predict the behaviour of a real size cylinder when engulfed in a 800{degrees}C fire, as specified in the regulation. The main unknowns are related to (1) the UF{sub 6} behaviour beyond the critical point, (2) the relationship between temperature field and internal pressure and (3) the equivalent conductivity of the solid UF{sub 6}. In order to investigate these phenomena in a representative way it is foreseen to perform experiments with a cylinder of real diameter, but reduced length, containing 4 tons of UF{sub 6}. This cylinder will be placed in an electrically heated furnace. A confinement vessel prevents any dispersion of UF{sub 6}. The heat flux delivered by the furnace will be calibrated by specific tests. The cylinder will be changed for each test.

  3. 1000–ton testing machine for cyclic fatigue tests of materials at liquid nitrogen temperatures

    SciTech Connect (OSTI)

    Khitruk, A. A.; Klimchenko, Yu. A.; Kovalchuk, O. A.; Marushin, E. L.; Mednikov, A. A.; Nasluzov, S. N.; Privalova, E. K.; Rodin, I. Yu.; Stepanov, D. B.; Sukhanova, M. V.

    2014-01-29

    One of the main tasks of superconductive magnets R and D is to determine the mechanical and fatigue properties of structural materials and the critical design elements in the cryogenic temperature range. This paper describes a new facility built based on the industrial 1000-ton (10 MN) testing machine Schenk PC10.0S. Special equipment was developed to provide the mechanical and cyclic tensile fatigue tests of large-scale samples at the liquid nitrogen temperature and in a given load range. The main feature of the developed testing machine is the cryostat, in which the device converting a standard compression force of the testing machine to the tensile force affected at the test object is placed. The control system provides the remote control of the test and obtaining, processing and presentation of test data. As an example of the testing machine operation the test program and test results of the cyclic tensile fatigue tests of fullscale helium inlet sample of the PF1 coil ITER are presented.

  4. Performance and results of the LBNE 35 ton membrane cryostat prototype

    SciTech Connect (OSTI)

    Montanari, David; Adamowski, Mark; Hahn, Alan; Norris, Barry; Reichenbacher, Juergen; Rucinski, Russell; Stewart, Jim; Tope, Terry

    2015-07-15

    We report on the performance and commissioning of the first membrane cryostat to be used for scientific application. The Long Baseline Neutrino Experiment (LBNE) has designed and fabricated a membrane cryostat prototype in collaboration with Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI). LBNE has designed and fabricated the supporting cryogenic system infrastructure and successfully commissioned and operated the first membrane cryostat. Original goals of the prototype are: to demonstrate the membrane cryostat technology in terms of thermal performance, feasibility for liquid argon and leak tightness; to demonstrate that we can remove all the impurities from the vessel and achieve the purity requirements in a membrane cryostat without evacuation; to demonstrate that we can achieve and maintain the purity requirements of the liquid argon using mol sieve and copper filters. The purity requirements of a large liquid argon detector such as LBNE are contaminants below 200 parts per trillion (ppt) oxygen equivalent. LBNE is planning the design and construction of a large liquid argon detector. This presentation will present requirements, design and construction of the LBNE 35 ton membrane cryostat prototype, and detail the commissioning and performance. The experience and results of this prototype are extremely important for the development of the LBNE detector.

  5. EA-327-A DC Energy, LLC | Department of Energy

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

    DC Energy to export electric energy to Canada. EA-327-A DC Energy.pdf More Documents & Publications Application to Export Electric Energy OE Docket No. EA-327-A DC Energy, LLC...

  6. Washington, D.C. Roundtable Summary | Department of Energy

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

    Washington, D.C. Roundtable Summary Washington, D.C. Roundtable Summary Summary of the DOE Office of Indian Energy roundtable held March 30, 2011, in Washington, D.C. PDF icon ...

  7. Logan Daum > Analyst - DC Energy > Center Alumni > The Energy...

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

    Logan Daum Analyst - DC Energy lrd56@cornell.edu Formerly a graduate student with the Fennie Group, Logan joined DC Energy in June of 2013...

  8. Low Cost, High Temperature, High Ripple Current DC Bus Capacitors...

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

    Low Cost, High Temperature, High Ripple Current DC Bus Capacitors Low Cost, High Temperature, High Ripple Current DC Bus Capacitors 2010 DOE Vehicle Technologies and Hydrogen...

  9. Maryland DC Virginia Solar Energy Industries Association MDV...

    Open Energy Info (EERE)

    DC Virginia Solar Energy Industries Association MDV SEIA Jump to: navigation, search Name: Maryland-DC-Virginia Solar Energy Industries Association (MDV-SEIA) Place: Bethesda,...

  10. Washington, D.C. and Indiana: Allison Hybrid Technology Achieves...

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

    Washington, D.C. and Indiana: Allison Hybrid Technology Achieves Commercial Success Washington, D.C. and Indiana: Allison Hybrid Technology Achieves Commercial Success August 21,...

  11. Multilevel cascade voltage source inverter with seperate DC sources...

    Office of Scientific and Technical Information (OSTI)

    Multilevel cascade voltage source inverter with seperate DC sources Citation Details In-Document Search Title: Multilevel cascade voltage source inverter with seperate DC sources ...

  12. Multilevel cascade voltage source inverter with seperate DC sources...

    Office of Scientific and Technical Information (OSTI)

    Multilevel cascade voltage source inverter with seperate DC sources Citation Details In-Document Search Title: Multilevel cascade voltage source inverter with seperate DC sources A ...

  13. INL Efficiency and Security Testing of EVSE, DC Fast Chargers...

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

    INL Efficiency and Security Testing of EVSE, DC Fast Chargers, and Wireless Charging Systems INL Efficiency and Security Testing of EVSE, DC Fast Chargers, and Wireless Charging ...

  14. AVTA: Battery Testing - DC Fast Charging's Effects on PEV Batteries...

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

    describes DC fast charging's effects on plug-in electric vehicle batteries. This research was conducted by Idaho National Laboratory. PDF icon DC Fast Charge Effects on Battery ...

  15. A Proposal for a Ton Scale Bubble Chamber for Dark Matter Detection

    SciTech Connect (OSTI)

    Collar, Juan; Dahl, C.Eric; Fustin, Drew; Robinson, Alan; Behnke, Ed; Behnke, Joshua; Breznau, William; Connor, Austin; Kuehnemund, Emily Grace; Levine, Ilan; Moan, Timothy; /Indiana U., South Bend /Fermilab

    2010-10-07

    The nature of non-baryonic dark matter is one of the most intriguing questions for particle physics at the start of the 21st century. There is ample evidence for its existence, but almost nothing is known of its properties. WIMPs are a very appealing candidate particle and several experimental campaigns are underway around the world to search for these particles via the nuclear recoils that they should induce. The COUPP series of bubble chambers has played a significant role in the WIMP search. Through a sequence of detectors of increasing size, a number of R&D issues have arisen and been solved, and the technology has now been advanced to the point where the construction of large chambers requires a modest research effort, some development, but mostly just engineering. It is within this context that we propose to build the next COUPP detector - COUPP-500, a ton scale device to be built over the next three years at Fermilab and then deployed deep underground at SNOLAB. The primary advantages of the COUPP approach over other technologies are: (1) The ability to reject electron and gamma backgrounds by arranging the chamber thermodynamics such that these particles do not even trigger the detector. (2) The ability to suppress neutron backgrounds by having the radioactively impure detection elements far from the active volume and by using the self-shielding of a large device and the high granularity to identify multiple bubbles. (3) The ability to build large chambers cheaply and with a choice of target fluids. (4) The ability to increase the size of the chambers without changing the size or complexity of the data acquisition. (5) Sensitivity to spin-dependent and spin-independent WIMP couplings. These key advantages should enable the goal of one background event in a ton-year of exposure to be achieved. The conceptual design of COUPP-500 is scaled from the preceding devices. In many cases all that is needed is a simple scaling up of components previously used. Calibration and R&D are still needed on some aspects of the system. We know we have the ability to distinguish alpha-induced events from nuclear recoils, but we do not yet know whether the combination of material purity and rejection are good enough to run for a year with no alpha background. We also need to have more detailed measurements of the detector threshold and a better understanding of its high gamma rejection. In addition, there are important checks to make on the longevity of the detector components in the hydraulic fluid and on the chemistry of the active fluid. The 2009 PASAG report explicitly supported the construction of the COUPP-500 device in all funding scenarios. The NSF has shown similar enthusiasm. It awarded one of its DUSEL S4 grants to assist in the engineering needed to build COUPP-500. The currently estimated cost of COUPP-500 is $8M, about half the $15M-$20M price tag expected by the PASAG report for a next generation dark matter search experiment. The COUPP-500 device will have a spin independent WIMP-nucleus cross-section sensitivity of 6 x 10{sup -47} cm{sup 2} after a background-free year of running. This device should then provide the benchmark against which all other WIMP searches are measured.

  16. Microsoft Word - ivanova-dc.doc

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

    the large, small and very small modes (named here as mode 3, 2, and 1). Figure 7. Mean dimension measured by the 2DC vs. temperature for this study (CEPEX). Vertical bars are...

  17. DC High School Science Bowl Regionals

    Broader source: Energy.gov [DOE]

    This event is the Washington, D.C. High School Regional competition for the US National Science Bowl. The regional competition is run by the Office of Economic Impact and Diversity, and the...

  18. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

    1998-01-06

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

  19. Halbach array DC motor/generator

    DOE Patents [OSTI]

    Merritt, Bernard T.; Dreifuerst, Gary R.; Post, Richard F.

    1998-01-01

    A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

  20. SUBCONTRACT REPORT: DC-DC Converter for Fuel Cell and Hybrid Vehicles

    SciTech Connect (OSTI)

    Marlino, Laura D; Zhu, Lizhi

    2007-07-01

    The goal of this project is to develop and fabricate a 5kW dc-dc converter with a baseline 14V output capability for fuel cell and hybrid vehicles. The major objectives for this dc-dc converter technology are to meet: Higher efficiency (92%); High coolant temperature,e capability (105 C); High reliability (15 Years/150,000miles); Smaller volume (5L); Lower weight (6kg); and Lower cost ($75/kW). The key technical challenge for these converters is the 105 C coolant temperatures. The power switches and magnetics must be designed to sustain these operating temperatures reliably, without a large cost/mass/volume penalty.

  1. EA-351 DC Energy Dakota, LLC | Department of Energy

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

    Order authorizing DC Energy Dakota, LLC to export electric energy to Canada PDF icon ... EA-351 DC Energy Dakota, LLC EA-344 Twin Cities Power-Canada, LLC EA-354 Endure Energy, ...

  2. Global DC Power System Market Analysis | OpenEI Community

    Open Energy Info (EERE)

    either positive or negative. It can be powered from an AC or DC source. A basic DC power system consists of a transformer, a rectifier, a filter, and a regulator. All these...

  3. Global DC Power System Market Growth | OpenEI Community

    Open Energy Info (EERE)

    either positive or negative. It can be powered from an AC or DC source. A basic DC power system consists of a transformer, a rectifier, a filter, and a regulator. All these...

  4. Global DC Power System Market Space | OpenEI Community

    Open Energy Info (EERE)

    either positive or negative. It can be powered from an AC or DC source. A basic DC power system consists of a transformer, a rectifier, a filter, and a regulator. All these...

  5. EA-377 DC Energy Texas | Department of Energy

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

    EA-377 DC Energy Texas Order authorizing DC Energy Texas to export electric energy to Mexico. PDF icon EA-377 DCE Texas Order.pdf More Documents & Publications Application to ...

  6. Washington DC Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    for your school's state, county, city, or district. For more information, please visit the Middle School Coach page. Washington, DC Region Middle School Regional Washington, DC DC...

  7. Washington DC Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    school's state, county, city, or district. For more information, please visit the High School Coach page. Washington, DC Region High School Regional Washington, DC Washington, DC...

  8. Energy Training Session for DC Elementary School Teachers

    Broader source: Energy.gov [DOE]

    Are you an elementary school teacher in Washington, DC, looking for creative ideas to introduce energy curriculum to your students?

  9. Energy Challenge Two: The WeatherizeDC Campaign

    Broader source: Energy.gov [DOE]

    WeatherizeDC is a campaign of The DC Project, a nonprofit based in Washington, D.C., founded by former leaders of the Obama for America campaign around a mission to advance economic and environmental justice by creating clean energy career opportunities for people who need them most.

  10. Q&A: Kristen Psaki of WeatherizeDC

    Broader source: Energy.gov [DOE]

    Roughly 20 percent of carbon emissions come from inefficient homes. The DC Project says it has found a way to mitigate emissions and create jobs, a winning combination. WeatherizeDC is the non-profit’s effort to use a community engagement model to help DC residents find green jobs and live a more energy efficient lifestyle.

  11. Taking out 1 billion tons of CO2: The magic of China's 11th Five-Year Plan?

    SciTech Connect (OSTI)

    Zhou, Nan; Lin, Jiang; Zhou, Nan; Levine, Mark; Fridley, David

    2007-07-01

    China's 11th Five-Year Plan (FYP) sets an ambitious target for energy-efficiency improvement: energy intensity of the country's gross domestic product (GDP) should be reduced by 20% from 2005 to 2010 (NDRC, 2006). This is the first time that a quantitative and binding target has been set for energy efficiency, and signals a major shift in China's strategic thinking about its long-term economic and energy development. The 20% energy intensity target also translates into an annual reduction of over 1.5 billion tons of CO2 by 2010, making the Chinese effort one of most significant carbon mitigation effort in the world today. While it is still too early to tell whether China will achieve this target, this paper attempts to understand the trend in energy intensity in China and to explore a variety of options toward meeting the 20% target using a detailed end-use energy model.

  12. Methods and results for stress analyses on 14-ton, thin-wall depleted UF{sub 6} cylinders

    SciTech Connect (OSTI)

    Kirkpatrick, J.R.; Chung, C.K.; Frazier, J.L.; Kelley, D.K.

    1996-10-01

    Uranium enrichment operations at the three US gaseous diffusion plants produce depleted uranium hexafluoride (DUF{sub 6}) as a residential product. At the present time, the inventory of DUF{sub 6} in this country is more than half a million tons. The inventory of DUF{sub 6} is contained in metal storage cylinders, most of which are located at the gaseous diffusion plants. The principal objective of the project is to ensure the integrity of the cylinders to prevent causing an environmental hazard by releasing the contents of the cylinders into the atmosphere. Another objective is to maintain the cylinders in such a manner that the DUF{sub 6} may eventually be converted to a less hazardous material for final disposition. An important task in the DUF{sub 6} cylinders management project is determining how much corrosion of the walls can be tolerated before the cylinders are in danger of being damaged during routine handling and shipping operations. Another task is determining how to handle cylinders that have already been damaged in a manner that will minimize the chance that a breach will occur or that the size of an existing breach will be significantly increased. A number of finite element stress analysis (FESA) calculations have been done to analyze the stresses for three conditions: (1) while the cylinder is being lifted, (2) when a cylinder is resting on two cylinders under it in the customary two-tier stacking array, and (3) when a cylinder is resting on tis chocks on the ground. Various documents describe some of the results and discuss some of the methods whereby they have been obtained. The objective of the present report is to document as many of the FESA cases done at Oak Ridge for 14-ton thin-wall cylinders as possible, giving results and a description of the calculations in some detail.

  13. A High Power Density DC-DC Converter for Distributed PV Architectures

    SciTech Connect (OSTI)

    Mohammed S. Agamy; Song Chi; Ahmed Elasser; Maja Harfman-Todorovic; Yan Jiang; Frank Mueller; Fengfeng Tao

    2012-06-01

    In order to maximize solar energy harvesting capabilities, power converters have to be designed for high efficiency and good MPPT and voltage/current performance. When many converters are used in distributed systems, power density also becomes an important factor as it allows for simpler system integration. In this paper a high power density string dc-dc converter suitable for distributed medium to large scale PV installation is presented. A simple partial power processing topology, implemented with all silicon carbide devices provides high efficiency as well as high power density. A 3.5kW, 100kHz converter is designed and tested to verify the proposed methods.

  14. Improved DC Gun and Insulator Assembly

    SciTech Connect (OSTI)

    Neubauer, Michael; Johnson, Rolland P

    2015-01-11

    Many user facilities such as synchrotron radiation light sources and free electron lasers rely on DC high voltage photoguns with internal field gradients as high as 10 to 15 MV/m. These high gradients often lead to field emission which poses serious problems for the photocathode used to generate the electron beam and the ceramic insulators used to bias the photocathode at high voltage. Ceramic insulators are difficult to manufacture, require long commissioning times, and have poor reliability, in part because energetic electrons bury themselves in the ceramic causing a buildup of charge and eventual puncture, and also because large diameter ceramics are difficult to braze reliably. The lifetimes of photo cathodes inside high current DC guns exhibiting field emission are limited to less than a hundred hours. Reducing the surface gradients on the metals reduces the field emission, which serves to maintain the required ultrahigh vacuum condition. A novel gun design with gradients around 5 MV/m and operating at 350 kV, a major improvement over existing designs, was proposed that allows for the in-situ replacement of photo cathodes in axially symmetric designs using inverted ceramics. In this project, the existing JLAB CEBAF asymmetric gun design with an inverted ceramic support was modeled and the beam dynamics characterized. An improved structure was designed that reduces the surface gradients and improves the beam optics. To minimize the surface gradients, a number of electrostatic gun designs were studied to determine the optimum configuration of the critical electrodes within the gun structure. Coating experiments were carried out to create a charge dissipative coating for cylindrical ceramics. The phase II proposal, which was not granted, included the design and fabrication of an axially symmetric DC Gun with an inverted ceramic that would operate with less than 5 MV/m at 350 kV and would be designed with an in-situ replaceable photo-cathode.

  15. DC OPC Comments. September 17, 2010 | Department of Energy

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

    OPC Comments. September 17, 2010 DC OPC Comments. September 17, 2010 Comments of the office of peoples counsel, washington DC in response to the department of energy's request for information concerning smart grid issues. PDF icon DC OPC Comments. September 17, 2010 More Documents & Publications Addressing Policy and Logistical Challenges to smart grid Implementation: eMeter Response to Department of Energy RFI Comments of DRSG to DOE Smart Grid RFI: Addressing Policy and Logistical

  16. Energy Incentive Programs, Washington DC | Department of Energy

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

    Washington DC Energy Incentive Programs, Washington DC Updated October 2015 What public-purpose-funded energy efficiency programs are available in the District of Columbia? In 2008, the Council of the District of Columbia passed the Clean and Affordable Energy Act (CAEA), establishing the DC Sustainable Energy Utility (DCSEU), whose mission is to provide energy assistance to low-income residents and support energy efficiency and renewable energy programs. The DCSEU, funded by the Sustainable

  17. VA-MD-DC Hydrogen Education for Decision Makers

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  18. Low Cost, High Temperature, High Ripple Current DC Bus Capacitors

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  19. DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal...

    Open Energy Info (EERE)

    Raft River Geothermal Area (1974-1975) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Schlumberger Array) At Raft River...

  20. Simultaneous distribution of AC and DC power - Energy Innovation...

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

    buildings has significant energy savings potential through the elimination of inverters necessary to convert DC source power into AC (Alternating Current) as well as the...

  1. Washington DC Reliability Requirements and the Need to Operate...

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

    Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) ...

  2. DC Bus Capacitor Manufacturing Facility for Electric Drive Vehicles

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  3. DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal...

    Open Energy Info (EERE)

    Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal Area...

  4. Persons Who Received the DC PSC's Emergency Petition and Complaint...

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

    ("DC PSC") Emergency Petition Comments on Department of Energy's Emergency Order To Resume Limited Operation at Mirant's Potomac River Generating Station and Proposed Mirant ...

  5. Chemical reactions of UF{sub 6} with water on ingress to damaged model 48X 10 ton cylinder

    SciTech Connect (OSTI)

    Rothman, A.B.

    1996-02-01

    Chemistry studies of the effects of water flooding in Model 48X 10-ton UF{sub 6} storage cylinders, as a result of impact fractures, were conducted to support the Safety Analysis Report for Packaging (SARP) review of the Paducah Tiger Overpack for transportation of those cylinders. The objectives of the study were to determine the maximum amount of water that could be admitted to the interior of such a damaged cylinder, the resulting geometries and chemical compositions from reactions of water with the UF{sub 6} contents of the cylinder, and the end-state water moderated and reflected configurations for input to nuclear criticality safety analyses. The case identified for analysis was the flooding of the inside of a cylinder, submerged horizontally in 3 ft of water. The flooding was driven by an initial pressure drop of 13 psig, through an assumed fracture (1/32 in. wide {times} 1/2 in. deep {times} 18 in. long) in the barrel of the cylinder. During the initial addition of water, transient back pressures occur from the effects of the heats of reaction and solution at the water/UF{sub 6} interface, with some chugging as more water is added to alternately coot the reaction surface and then heat it again as the added water reacts with more UF{sub 6}.

  6. Development of a Novel Bi-Directional Isolated Multiple-Input DC-DC Converter

    SciTech Connect (OSTI)

    Li, H.

    2005-10-24

    There is vital need for a compact, lightweight, and efficient energy-storage system that is both affordable and has an acceptable cycle life for the large-scale production of electric vehicles (EVs) and hybrid electric vehicles (HEVs). Most of the current research employs a battery-storage unit (BU) combined with a fuel cell (FC) stack in order to achieve the operating voltage-current point of maximum efficiency for the FC system. A system block diagram is shown in Fig.1.1. In such a conventional arrangement, the battery is sized to deliver the difference between the energy required by the traction drive and the energy supplied by the FC system. Energy requirements can increase depending on the drive cycle over which the vehicle is expected to operate. Peak-power transients result in an increase of losses and elevated temperatures which result in a decrease in the lifetime of the battery. This research will propose a novel two-input direct current (dc) dc to dc converter to interface an additional energy-storage element, an ultracapacitor (UC), which is shown in Fig.1.2. It will assist the battery during transients to reduce the peak-power requirements of the battery.

  7. Read-out electronics for DC squid magnetic measurements

    DOE Patents [OSTI]

    Ganther, Jr., Kenneth R.; Snapp, Lowell D.

    2002-01-01

    Read-out electronics for DC SQUID sensor systems, the read-out electronics incorporating low Johnson noise radio-frequency flux-locked loop circuitry and digital signal processing algorithms in order to improve upon the prior art by a factor of at least ten, thereby alleviating problems caused by magnetic interference when operating DC SQUID sensor systems in magnetically unshielded environments.

  8. National Small Business Federal Contracting Summit-DC Fall Conference

    Broader source: Energy.gov [DOE]

    The 2014 National Small Business Federal Contracting Summit - DC Fall Conference is presented jointly by the National Association of Small Business Contractors (the Supplier Council of The American Small Business Chamber of Commerce) and the U.S. Women's Chamber of Commerce in Washington DC.

  9. Dynamic microscopic theory of fusion using DC-TDHF

    SciTech Connect (OSTI)

    Umar, A. S.; Oberacker, V. E.; Keser, R.; Maruhn, J. A.; Reinhard, P.-G.

    2012-10-20

    The density-constrained time-dependent Hartree-Fock (DC-TDHF) theory is a fully microscopic approach for calculating heavy-ion interaction potentials and fusion cross sections below and above the fusion barrier. We discuss recent applications of DC-TDHF method to fusion of light and heavy systems.

  10. Historical Material Analysis of DC745U Pressure Pads

    SciTech Connect (OSTI)

    Ortiz-Acosta, Denisse

    2012-07-30

    As part of the Enhance Surveillance mission, it is the goal to provide suitable lifetime assessment of stockpile materials. This report is an accumulation of historical publication on the DC745U material and their findings. It is the intention that the B61 LEP program uses this collection of data to further develop their understanding and potential areas of study. DC745U is a commercially available silicone elastomer consisting of dimethyl, methyl-phenyl, and methyl-vinyl siloxane repeat units. Originally, this material was manufactured by Dow Corning as Silastic{reg_sign} DC745U at their manufacturing facility in Kendallville, IN. Recently, Dow Corning shifted this material to the Xiameter{reg_sign} brand product line. Currently, DC745U is available through Xiameter{reg_sign} or Dow Corning's distributor R. D. Abbott Company. DC745U is cured using 0.5 wt% vinyl-specific peroxide curing agent known as Luperox 101 or Varox DBPH-50. This silicone elastomer is used in numerous parts, including two major components (outer pressure pads and aft cap support) in the W80 and as pressure pads on the B61. DC745U is a proprietary formulation, thus Dow Corning provides limited information on its composition and properties. Based on past experience with Dow Corning, DC745U is at risk of formulation changes without notification to the costumer. A formulation change for DC745U may have a significant impact because the network structure is a key variable in determining material properties. The purpose of this report is to provide an overview of historical DC745U studies and identify gaps that need to be addressed in future work. Some of the previous studies include the following: 1. Spectroscopic characterization of raw gum stock. 2. Spectroscopic, thermal, and mechanical studies on cured DC745U. 3. Nuclear Magnetic Resonance (NMR) and solvent swelling studies on DC745U with different crosslink densities. 4. NMR, solvent swelling, thermal, and mechanical studies on thermally aged DC745U. 5. NMR, solvent swelling, thermal, and mechanical studies on radiolytically aged DC745U. Each area is reviewed and further work is suggested to improve our understanding of DC745U for systems engineering, surveillance, aging assessments, and lifetime assessment.

  11. Review of corrosion in 10- and 14-ton mild steel depleted UF{sub 6} storage cylinders

    SciTech Connect (OSTI)

    Lykins, M.L.

    1995-08-01

    A literature review was conducted to determine the type, extent and severity of corrosion found in the 10- and 14-ton mild steel depleted UF{sub 6} storage cylinders. Also discussed in this review is corrosion found in the valves and plugs used in the cylinders. Corrosion of the cylinders is a gradual process which occurs slowly over time. Understanding corrosion of the cylinders is an important concern for long term storage of the UF{sub 6} in the cylinder yards, as well as the final disposition of the depleted UF{sub 6} tails inventory in the future. The following conclusions are made from the literature review: (1) The general external corrosion rate of the cylinders is about 1 to 2 mils per year (1 mil = 0.001{double_prime}). The highest general external corrosion rate was over 5 mpy on the 48G type cylinders. (2) General internal corrosion from the depleted UF{sub 6} is negligible under normal storage conditions. Crevice corrosion can occur at the cylinder/saddle interface from the retention of water in this area. Crevice corrosion can occur at the cylinder/skirt interface on the older skirted cylinders due to the lack of water drainage in this area. Crevice corrosion can occur on cylinders that have been in ground contact. Crevice corrosion and galvanic corrosion can occur where the stainless steel I.D. nameplates are attached to the cylinder. The packing nuts on the bronze one-inch valves used in the cylinders are susceptible to stress corrosion cracking (SCC). Mechanical damage from routine handling can lead to a breach in a cylinder with subsequent accelerated corrosion of the mild steel due to attack from HF and other UF{sub 6} hydrolysis by-products.

  12. Application to Export Electric Energy OE Docket No. EA-351 DC...

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

    1 DC Energy Dakota, LLC Application to Export Electric Energy OE Docket No. EA-351 DC Energy Dakota, LLC Application from DC Energy Dakota, LLC to export electric energy to Canada...

  13. Linked Open Data Workshop in Washington, D.C. | OpenEI Community

    Open Energy Info (EERE)

    Linked Open Data Workshop in Washington, D.C. Home > Linked Open Data Workshop in Washington, D.C. > Posts by term > Linked Open Data Workshop in Washington, D.C. Content Group...

  14. Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasability of a Billion-Ton Annual Supply

    SciTech Connect (OSTI)

    Perlack, R.D.

    2005-12-15

    The U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA) are both strongly committed to expanding the role of biomass as an energy source. In particular, they support biomass fuels and products as a way to reduce the need for oil and gas imports; to support the growth of agriculture, forestry, and rural economies; and to foster major new domestic industries--biorefineries--making a variety of fuels, chemicals, and other products. As part of this effort, the Biomass R&D Technical Advisory Committee, a panel established by the Congress to guide the future direction of federally funded biomass R&D, envisioned a 30 percent replacement of the current U.S. petroleum consumption with biofuels by 2030. Biomass--all plant and plant-derived materials including animal manure, not just starch, sugar, oil crops already used for food and energy--has great potential to provide renewable energy for America's future. Biomass recently surpassed hydropower as the largest domestic source of renewable energy and currently provides over 3 percent of the total energy consumption in the United States. In addition to the many benefits common to renewable energy, biomass is particularly attractive because it is the only current renewable source of liquid transportation fuel. This, of course, makes it invaluable in reducing oil imports--one of our most pressing energy needs. A key question, however, is how large a role could biomass play in responding to the nation's energy demands. Assuming that economic and financial policies and advances in conversion technologies make biomass fuels and products more economically viable, could the biorefinery industry be large enough to have a significant impact on energy supply and oil imports? Any and all contributions are certainly needed, but would the biomass potential be sufficiently large to justify the necessary capital replacements in the fuels and automobile sectors? The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30 percent or more of the country's present petroleum consumption--the goal set by the Advisory Committee in their vision for biomass technologies. Accomplishing this goal would require approximately 1 billion dry tons of biomass feedstock per year.

  15. Implementing the DC Mode in Cosmological Simulations with Supercomoving Variables

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gnedin, Nickolay Y; Kravtsov, Andrey V; Rudd, Douglas H

    2011-06-02

    As emphasized by previous studies, proper treatment of the density fluctuation on the fundamental scale of a cosmological simulation volume - the 'DC mode' - is critical for accurate modeling of spatial correlations on scales ~> 10% of simulation box size. We provide further illustration of the effects of the DC mode on the abundance of halos in small boxes and show that it is straightforward to incorporate this mode in cosmological codes that use the 'supercomoving' variables. The equations governing evolution of dark matter and baryons recast with these variables are particularly simple and include the expansion factor, andmore »hence the effect of the DC mode, explicitly only in the Poisson equation.« less

  16. AVTA: Hasdec DC Fast Charging Testing Results | Department of Energy

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

    Energy GE Smart Grid Capable AC Level 2 charging system for plug-in electric vehicles. This research was conducted by Idaho National Laboratory. PDF icon GE Smart Grid Capable AC Level 2 - January 2014 More Documents & Publications AVTA: Aerovironment AC Level 2 Charging System Testing Results AVTA: Siemens-VersiCharge

    Hasdec DC fast charging system for plug-in electric vehicles. This research was conducted by Idaho National Laboratory. PDF icon DC Conductive EVSE Testing - Hasetec DC

  17. The Automotive X Prize rolls into Washington, DC 09/16/10 | Department...

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

    The Automotive X Prize rolls into Washington, DC 091610 The Automotive X Prize rolls into Washington, DC 091610 Addthis ProgressiveXPrizeEventSeptember162010Peraves187mpg...

  18. Electrodeposited Nanolaminated CoNiFe Cores for Ultracompact DC-DC Power Conversion

    SciTech Connect (OSTI)

    Kim, J; Kim, M; Herrault, F; Park, JY; Allen, MG

    2015-09-01

    Laminated metallic alloy cores (i.e., alternating layers of thin film metallic alloy and insulating material) of appropriate lamination thickness enable suppression of eddy current losses at high frequencies. Magnetic cores comprised of many such laminations yield substantial overall magnetic volume, thereby enabling high-power operation. Previously, we reported nanolaminated permalloy (Ni-80 Fe-20) cores based on a sequential electrodeposition technique, demonstrating negligible eddy current losses at peak flux densities up to 0.5 T and operating at megahertz frequencies. This paper demonstrates improved performance of nanolaminated cores comprising tens to hundreds of layers of 300-500-nm-thick CoNiFe films that exhibit superior magnetic properties (e.g., higher saturation flux density and lower coercivity) than permalloy. Nanolaminated CoNiFe cores can be operated up to a peak flux density of 0.9 T, demonstrating improved power handling capacity and exhibiting 30% reduced volumetric core loss, attributed to lowered hysteresis losses compared to the nanolaminated permalloy core of the same geometry. Operating these cores in a buck dc-dc power converter at a switching frequency of 1 MHz, the nanolaminated CoNiFe cores achieved a conversion efficiency exceeding 90% at output power levels up to 7 W, compared to an achieved permalloy core conversion efficiency below 86% at 6 W.

  19. Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply, April 2005

    SciTech Connect (OSTI)

    2005-04-01

    The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30 percent or more of the country’s present petroleum consumption – the goal set by the Biomass R&D Technical Advisory Committee in their vision for biomass technologies. Accomplishing this goal would require approximately 1 billion dry tons of biomass feedstock per year.

  20. DC Bus Capacitor Manufacturing Facility for Electric Drive Vehicles...

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

    0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon apearravt028boan2010...

  1. Radiofrequency amplifier based on a dc superconducting quantum interference device

    DOE Patents [OSTI]

    Hilbert, C.; Martinis, J.M.; Clarke, J.

    1984-04-27

    A low noise radiofrequency amplifer, using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID and an input coil are maintained at superconductivity temperatures in a superconducting shield, with the input coil inductively coupled to the superconducting ring of the dc SQUID. A radiofrequency signal from outside the shield is applied to the input coil, and an amplified radiofrequency signal is developed across the dc SQUID ring and transmitted to exteriorly of the shield. A power gain of 19.5 +- 0.5 dB has been achieved with a noise temperature of 1.0 +- 0.4 K at a frequency of 100 MHz.

  2. PowerCentsDC Program Final Report | Department of Energy

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

    In 2007 the Smart Meter Pilot Program Inc initiated PowerCentsDC to test the reactions and impacts on consumer behavior of smart prices, smart meters, and smart thermostats in the ...

  3. Radiofrequency amplifier based on a dc superconducting quantum interference device

    DOE Patents [OSTI]

    Hilbert, Claude; Martinis, John M.; Clarke, John

    1986-01-01

    A low noise radiofrequency amplifier (10), using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID (11) and an input coil (12) are maintained at superconductivity temperatures in a superconducting shield (13), with the input coil (12) inductively coupled to the superconducting ring (17) of the dc SQUID (11). A radiofrequency signal from outside the shield (13) is applied to the input coil (12), and an amplified radiofrequency signal is developed across the dc SQUID ring (17) and transmitted to exteriorly of the shield (13). A power gain of 19.5.+-.0.5 dB has been achieved with a noise temperature of 1.0.+-.0.4 K. at a frequency of 100 MHz.

  4. National Science Bowl Brings Best and Brightest to DC

    Broader source: Energy.gov [DOE]

    The National Science Bowl Finals in Washington D.C. April 27 to 30 pit 113 high and middle school teams against one another answering questions Jeopardy-style about biology, chemistry, earth science, physics, astronomy, and math.

  5. ARM - Field Campaign - DC-8 Cloud Radar Campaign

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

    Contact Lihua Li (lihua@mirsl.ecs.umass.edu) or Steve Sekelsky (sekelsky@mirsl.ecs.umass.edu). Summary The NASA DC-8 was based at Tinker Air Force Base near Oklahoma City between ...

  6. Memorandum From: Leo Breton, Founder Energy Innovations Washington, DC

    Energy Savers [EERE]

    From: Leo Breton, Founder Energy Innovations Washington, DC 202-329-6813 Lbreton2000@yahoo.com To: expartecommunications@hq.doe.gov Subj: Complying with DOE's "ex parte communications" requirements Leo Breton, representing Energy Innovations of Washington, DC, a small company engaged in improving the energy efficiency of appliances, automobiles, and HVAC systems, requested a meeting with DOE regarding residential cooktop and range efficiency standards and related test procedures. A

  7. Washington DC Reliability Requirements and the Need to Operate Mirant's

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

    Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) | Department of Energy Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Pursuant to

  8. NREL: Energy Analysis - Washington D.C. Office Staff

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

    Washington D.C. Office The following SEAC staff are based in our Washington D.C. Office. They support a variety of programs and activities, and often are the liaison between the U.S. Department of Energy and staff based in Golden, Colorado. Team Lead: Robert Margolis Administrative Support: Catherine Burke (Golden) Austin Brown David J. Feldman Thomas Jenkin John (Jack) Mayernik Colin McMillan Kathleen Nawaz Monisha Shah Photo of Austin Brown. Austin Brown Senior Analyst (Strategic Planning)

  9. Energy Department Completes Cool Roof Installation on DC Headquarters

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

    Building to Save Money by Saving Energy | Department of Energy Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy Energy Department Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy December 14, 2010 - 12:00am Addthis Washington - Secretary Steven Chu today announced the completion of a new cool roof installation on the Department of Energy's Headquarters West Building. There was no incremental cost to adding

  10. User Science Exhibition March 28-29 in Washington DC

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

    Science Exhibition March 28-29 in Washington DC User Science Exhibition March 28-29 in Washington DC February 17, 2012 by Francesca Verdier This March 28 and 29 the National User Facilities Organization is holding a User Science Exhibition on Capitol Hill. All major DOE facilities will have posters and representatives there. NERSC users are welcome to attend. This event will highlight the significant and important role that scientific user facilities play in science education, economic

  11. A High Efficiency DC-DC Converter Topology Suitable for Distributed Large Commercial and Utility Scale PV Systems

    SciTech Connect (OSTI)

    Mohammed S. Agamy; Maja Harfman-Todorovic; Ahmed Elasser; Robert L. Steigerwald; Juan A. Sabate; Song Chi; Adam J. McCann; Li Zhang; Frank Mueller

    2012-09-01

    In this paper a DC-DC power converter for distributed photovoltaic plant architectures is presented. The proposed converter has the advantages of simplicity, high efficiency, and low cost. High efficiency is achieved by having a portion of the input PV power directly fed forward to the output without being processed by the converter. The operation of this converter also allows for a simplified maximum power point tracker design using fewer measurements

  12. Assessment of Reusing 14-ton, Thin-Wall, Depleted UF{sub 6} Cylinders as LLW Disposal Containers

    SciTech Connect (OSTI)

    O'Connor, D.G.

    2000-11-30

    Approximately 700,000 MT of DUF{sub 6} is stored, or will be produced under a current agreement with the USEC, at the Paducah site in Kentucky, Portsmouth site in Ohio, and ETTP site in Tennessee. On July 21, 1998, the 105th Congress approved Public Law 105-204 (Ref; 1), which directed that facilities be built at the Kentucky and Ohio sites to convert DUF{sub 6} to a stable form for disposition. On July 6, 1999, the Department of Energy (DOE) issued the ''Final Plan for the Conversion of Depleted Uranium Hexafluoride as Required by Public Law 105-204 (Ref. 2), in which DOE committed to develop a Depleted Uranium Hexafluoride Materials Use Roadmap''. On September 1, 2000, DOE issued the Draft Depleted Uranium Hexafluoride Materials Use Roadmap (Ref. 3) (Roadmap), which provides alternate paths for the long-term storage, beneficial use, and eventual disposition of each product form and material that will result from the DUF{sub 6} conversion activity. One of the paths being considered for DUF{sub 6} cylinders is to reuse the empty cylinders as containers to transport and dispose of LLW, including the converted DU. The Roadmap provides results of the many alternate uses and disposal paths for conversion products and the empty DUF{sub 6} storage cylinders. As a part of the Roadmap, evaluations were conducted of cost savings, technical maturity, barriers to implementation, and other impacts. Results of these evaluations indicate that using the DUF{sub 6} storage cylinders as LLW disposal containers could provide moderate cost savings due to the avoided cost of purchasing LLW packages and the avoided cost of disposing of the cylinders. No significant technical or institutional issues were identified that would make using cylinders as LLW packages less effective than other disposition paths. Over 58,000 cylinders have been used, or will be used, to store DUF{sub 6}. Over 51,000 of those cylinders are 14TTW cylinders with a nominal wall thickness of 5/16-m (0.79 cm). These- 14TTW cylinders, which have a nominal diameter of 48 inches and nominally contain 14 tons (12.7 MT) of DUF{sub 6}, were originally designed and fabricated for temporary storage of DUF{sub 6}. They were fabricated from pressure-vessel-grade steels according to the provisions of the ASME Boiler and Pressure Vessel Code (Ref. 4). Cylinders are stored in open yards at the three sites and, due to historical storage techniques, were subject to corrosion. Roughly 10,000 of the 14TTW cylinders are considered substandard (Ref. 5) due to corrosion and other structural anomalies caused by mishandling. This means that approximately 40,000 14TTW cylinders could be made available as containers for LLW disposal In order to demonstrate the use of 14TTW cylinders as LLW disposal containers, several qualifying tasks need to be performed. Two demonstrations are being considered using 14TTW cylinders--one demonstration using contaminated soil and one demonstration using U{sub 3}O{sub 8}. The objective of this report are to determine how much information is known that could be used to support the demonstrations, and how much additional work will need to be done in order to conduct the demonstrations. Information associated with the following four qualifying tasks are evaluated in this report. (1) Perform a review of structural assessments that have been conducted for 14TTW. (2) Develop a procedure for filling 14TTW cylinders with LLW that have been previously washed. (3) Evaluate the transportation requirements for shipping 14TTW cylinders containing LLW. (4) Evaluate the WAC that will be imposed by the NTS. Two assumptions are made to facilitate this evaluation of using DUF{sub 6} cylinders as LLW disposal containers. (1) Only 14TTW cylinders will be considered for use as LLW containers, and (2) The NTS will be the LLW disposal site.

  13. DC Microgrids Scoping Study. Estimate of Technical and Economic Benefits

    SciTech Connect (OSTI)

    Backhaus, Scott N.; Swift, Gregory William; Chatzivasileiadis, Spyridon; Tschudi, William; Glover, Steven; Starke, Michael; Wang, Jianhui; Yue, Meng; Hammerstrom, Donald

    2015-03-23

    Microgrid demonstrations and deployments are expanding in US power systems and around the world. Although goals are specific to each site, these microgrids have demonstrated the ability to provide higher reliability and higher power quality than utility power systems and improved energy utilization. The vast majority of these microgrids are based on AC power transfer because this has been the traditionally dominant power delivery scheme. Independently, manufacturers, power system designers and researchers are demonstrating and deploying DC power distribution systems for applications where the end-use loads are natively DC, e.g., computers, solid-state lighting, and building networks. These early DC applications may provide higher efficiency, added flexibility, reduced capital costs over their AC counterparts. Further, when onsite renewable generation, electric vehicles and storage systems are present, DC-based microgrids may offer additional benefits. Early successes from these efforts raises a question - can a combination of microgrid concepts and DC distribution systems provide added benefits beyond what has been achieved individually?

  14. A nuclear criticality safety assessment of the loss of moderation control in 2 1/2 and 10-ton cylinders containing enriched UF{sub 6}

    SciTech Connect (OSTI)

    Newvahner, R.L.; Pryor, W.A.

    1991-12-31

    Moderation control for maintaining nuclear criticality safety in 2 {1/2}-ton, 10-ton, and 14-ton cylinders containing enriched uranium hexafluoride (UF{sub 6}) has been used safely within the nuclear industry for over thirty years, and is dependent on cylinder integrity and containment. This assessment evaluates the loss of moderation control by the breaching of containment and entry of water into the cylinders. The first objective of this study was to estimate the required amounts of water entering these large UF{sub 6} cylinders to react with, and to moderate the uranium compounds sufficiently to cause criticality. Hypothetical accident situations were modeled as a uranyl fluoride (UO{sub 2}F{sub 2}) slab above a UF{sub 6} hemicylinder, and a UO{sub 2}F{sub 2} sphere centered within a UF{sub 6} hemicylinder. These situations were investigated by computational analyses utilizing the KENO V.a Monte Carlo Computer Code. The results were used to estimate both the masses of water required for criticality, and the limiting masses of water that could be considered safe. The second objective of the assessment was to calculate the time available for emergency control actions before a criticality would occur, i.e., a {open_quotes}safetime{close_quotes}, for various sources of water and different size openings in a breached cylinder. In the situations considered, except the case for a fire hose, the safetime appears adequate for emergency control actions. The assessment shows that current practices for handling moderation controlled cylinders of low enriched UF{sub 6}, along with the continuation of established personnel training programs, ensure nuclear criticality safety for routine and emergency operations.

  15. Table 11.1 Carbon Dioxide Emissions From Energy Consumption by Source, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    Carbon Dioxide Emissions From Energy Consumption by Source, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal 3 Natural Gas 4 Petroleum Total 2,9 Biomass 2 Aviation Gasoline Distillate Fuel Oil 5 Jet Fuel Kero- sene LPG 6 Lubri- cants Motor Gasoline 7 Petroleum Coke Residual Fuel Oil Other 8 Total Wood 10 Waste 11 Fuel Ethanol 12 Bio- diesel Total 1949 1,118 270 12 140 NA 42 13 7 329 8 244 25 820 2,207 145 NA NA NA 145 1950 1,152 313 14 168 NA 48 16 9 357 8 273 26 918 2,382 147 NA NA

  16. Table 11.2a Carbon Dioxide Emissions From Energy Consumption: Residential Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    a Carbon Dioxide Emissions From Energy Consumption: Residential Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal Natural Gas 3 Petroleum Retail Electricity 5 Total 2 Biomass 2 Distillate Fuel Oil 4 Kerosene Liquefied Petroleum Gases Total Wood 6 Total 6 1949 121 55 51 21 7 80 66 321 99 99 1950 120 66 61 25 9 95 69 350 94 94 1951 111 81 68 27 10 105 78 374 90 90 1952 103 89 70 27 10 108 85 385 84 84 1953 92 93 71 26 11 108 94 387 78 78 1954 82 104 79 27 12 118 99 404 75 75

  17. Table 11.2c Carbon Dioxide Emissions From Energy Consumption: Industrial Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    c Carbon Dioxide Emissions From Energy Consumption: Industrial Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal Coal Coke Net Imports Natural Gas 3 Petroleum Retail Elec- tricity 8 Total 2 Biomass 2 Distillate Fuel Oil 4 Kero- sene LPG 5 Lubri- cants Motor Gasoline 6 Petroleum Coke Residual Fuel Oil Other 7 Total Wood 9 Waste 10 Fuel Ethanol 11 Total 1949 500 -1 166 41 18 3 3 16 8 95 25 209 120 995 44 NA NA 44 1950 531 (s) 184 51 20 4 3 18 8 110 26 239 140 1,095 50 NA NA 50

  18. Table 11.2d Carbon Dioxide Emissions From Energy Consumption: Transportation Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    d Carbon Dioxide Emissions From Energy Consumption: Transportation Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal Natural Gas 3 Petroleum Retail Elec- tricity 7 Total 2 Biomass 2 Aviation Gasoline Distillate Fuel Oil 4 Jet Fuel LPG 5 Lubricants Motor Gasoline 6 Residual Fuel Oil Total Fuel Ethanol 8 Biodiesel Total 1949 161 NA 12 30 NA (s) 4 306 91 443 6 611 NA NA NA 1950 146 7 14 35 NA (s) 5 332 95 481 6 640 NA NA NA 1951 129 11 18 42 NA (s) 6 360 102 529 7 675 NA NA NA

  19. An integrated flyback converter for DC uninterruptible power supply

    SciTech Connect (OSTI)

    Ma, K.W.; Lee, Y.S.

    1996-03-01

    An integrated flyback converter performing the combined functions of uninterruptible power supply (UPS) and switch-mode power supply (SMPS) is presented. This converter has a high voltage main power input and a low voltage backup battery input. DC output is obtained form the main input via a flyback converter during normal operation and from the backup battery via another flyback converter when input power fails. High conversion efficiency is achieved in normal, backup, and charging modes as there is only a single dc-dc conversion in each mode. The converter circuit is very simple, with two switching transistors, a relay for mode switching, and a single magnetic structure only. This new design offers substantial improvement in efficiency, size, and cost over the conventional cascade of UPS and SMPS due to single voltage conversion, high frequency switching, and removal of design redundancy. The operation, design, analysis, and experimental results of the converter are presented.

  20. Nuclear magnetic resonance experiments with dc SQUID amplifiers

    SciTech Connect (OSTI)

    Heaney, M.B. . Dept. of Physics Lawrence Berkeley Lab., CA )

    1990-11-01

    The development and fabrication of dc SQUIDs (Superconducting QUantum Interference Devices) with Nb/Al{sub 2}O{sub 3}/Nb Josephson junctions is described. A theory of the dc SQUID as a radio-frequency amplifier is presented, with an optimization strategy that accounts for the loading and noise contributions of the postamplifier and maximizes the signal-to-noise ratio of the total system. The high sensitivity of the dc SQUID is extended to high field NMR. A dc SQUID is used as a tuned radio-frequency amplifier to detect pulsed nuclear magnetic resonance at 32 MHz from a metal film in a 3.5 Tesla static field. A total system noise temperature of 11 K has been achieved, at a bath temperature of 4.2 K. The minimum number of nuclear Bohr magnetons observable from a free precession signal after a single pulse is about 2 {times} 10{sup 17} in a bandwidth of 25 kHz. In a separate experiment, a dc SQUID is used as a rf amplifier in a NQR experiment to observe a new resonance response mechanism. The net electric polarization of a NaClO{sub 3} crystal due to the precessing electric quadrupole moments of the Cl nuclei is detected at 30 MHz. The sensitivity of NMR and NQR spectrometers using dc SQUID amplifiers is compared to the sensitivity of spectrometers using conventional rf amplifiers. A SQUID-based spectrometer has a voltage sensitivity which is comparable to the best achieved by a FET-based spectrometer, at these temperatures and operating frequencies.

  1. A Multilevel Voltage-Source Inverter with Separate DC Sources

    Office of Scientific and Technical Information (OSTI)

    Multilevel Voltage-Source Inverter with Separate DC Sources for Static Var Generation Fang Zheng Peng University of Tennessee, Knoxville Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-7258 Phone: 615-576-7261 P.O. BOX 2003, K-l008F, M / S 7258 Abstract - A new multilevel voltage-source inverter with separate dc sources is proposed for high-voltage, high-power applications, such as flexible ac transmission systems (FACTS) including static var generation (SVG), power line conditioning,

  2. DC Fast Charging at the Workplace | Department of Energy

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

    DC Fast Charging at the Workplace DC Fast Charging at the Workplace Most employers offering plug-in electric vehicle (PEV) charging install Level 1 or Level 2 charging stations, but there are some cases where employers may want to consider installing DCFC. Level 1 and Level 2 charging can meet the needs of most employees that are parked during an average workday. During one hour of charging, Level 1 charging can replenish 2 to 5 miles of range and Level 2 charging can add about 10-20 miles of

  3. DC Students Take On Regional Science Bowl Competition | Department of

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

    Energy DC Students Take On Regional Science Bowl Competition DC Students Take On Regional Science Bowl Competition March 10, 2014 - 4:47pm Addthis The high school regional science bowl competition was held on Saturday, February 22, 2014 at the U.S. Department of Energy. The winning team was Woodrow Wilson High School. The high school regional science bowl competition was held on Saturday, February 22, 2014 at the U.S. Department of Energy. The winning team was Woodrow Wilson High School.

  4. Graphite electrode DC arc furnace. Innovative technology summary report

    SciTech Connect (OSTI)

    1999-05-01

    The Graphite Electrode DC Arc Furnace (DC Arc) is a high-temperature thermal process, which has been adapted from a commercial technology, for the treatment of mixed waste. A DC Arc Furnace heats waste to a temperature such that the waste is converted into a molten form that cools into a stable glassy and/or crystalline waste form. Hazardous organics are destroyed through combustion or pyrolysis during the process and the majority of the hazardous metals and radioactive components are incorporated in the molten phase. The DC Arc Furnace chamber temperature is approximately 593--704 C and melt temperatures are as high as 1,500 C. The DC Arc system has an air pollution control system (APCS) to remove particulate and volatiles from the offgas. The advantage of the DC Arc is that it is a single, high-temperature thermal process that minimizes the need for multiple treatment systems and for extensive sorting/segregating of large volumes of waste. The DC Arc has the potential to treat a wide range of wastes, minimize the need for sorting, reduce the final waste volumes, produce a leach resistant waste form, and destroy organic contaminants. Although the DC arc plasma furnace exhibits great promise for treating the types of mixed waste that are commonly present at many DOE sites, several data and technology deficiencies were identified by the Mixed Waste Focus Area (MWFA) regarding this thermal waste processing technique. The technology deficiencies that have been addressed by the current studies include: establishing the partitioning behavior of radionuclides, surrogates, and hazardous metals among the product streams (metal, slag, and offgas) as a function of operating parameters, including melt temperature, plenum atmosphere, organic loading, chloride concentration, and particle size; demonstrating the efficacy of waste product removal systems for slag and metal phases; determining component durability through test runs of extended duration, evaluating the effect of feed composition variations on process operating conditions and slag product performance; and collecting mass balance and operating data to support equipment and instrument design.

  5. High voltage dc--dc converter with dynamic voltage regulation and decoupling during load-generated arcs

    DOE Patents [OSTI]

    Shimer, D.W.; Lange, A.C.

    1995-05-23

    A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules. 5 Figs.

  6. High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs

    DOE Patents [OSTI]

    Shimer, Daniel W.; Lange, Arnold C.

    1995-01-01

    A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

  7. National Energy Education Summit to Electrify D.C.

    Broader source: Energy.gov [DOE]

    On January 26, energy educators from across the country will convene in Washington, D.C., to address the need for nationwide energy literacy. Join us for the National Energy Education Summit, hosted by the Council of Energy Research and Education Leaders.

  8. Electrostatic coalescence system with independent AC and DC hydrophilic electrodes

    DOE Patents [OSTI]

    Hovarongkura, A. David; Henry, Jr., Joseph D.

    1981-01-01

    An improved electrostatic coalescence system is provided in which independent AC and DC hydrophilic electrodes are employed to provide more complete dehydration of an oil emulsion. The AC field is produced between an AC electrode array and the water-oil interface wherein the AC electrode array is positioned parallel to the interface which acts as a grounded electrode. The emulsion is introduced into the AC field in an evenly distributed manner at the interface. The AC field promotes drop-drop and drop-interface coalescence of the water phase in the entering emulsion. The continuous oil phase passes upward through the perforated AC electrode array and enters a strong DC field produced between closely spaced DC electrodes in which small dispersed droplets of water entrained in the continuous phase are removed primarily by collection at hydrophilic DC electrodes. Large droplets of water collected by the electrodes migrate downward through the AC electrode array to the interface. All phase separation mechanisms are utilized to accomplish more complete phase separation.

  9. Recovery Act: Integrated DC-DC Conversion for Energy-Efficient Multicore Processors

    SciTech Connect (OSTI)

    Shepard, Kenneth L

    2013-03-31

    In this project, we have developed the use of thin-film magnetic materials to improve in energy efficiency of digital computing applications by enabling integrated dc-dc power conversion and management with on-chip power inductors. Integrated voltage regulators also enables fine-grained power management, by providing dynamic scaling of the supply voltage in concert with the clock frequency of synchronous logic to throttle power consumption at periods of low computational demand. The voltage converter generates lower output voltages during periods of low computational performance requirements and higher output voltages during periods of high computational performance requirements. Implementation of integrated power conversion requires high-capacity energy storage devices, which are generally not available in traditional semiconductor processes. We achieve this with integration of thin-film magnetic materials into a conventional complementary metal-oxide-semiconductor (CMOS) process for high-quality on-chip power inductors. This project includes a body of work conducted to develop integrated switch-mode voltage regulators with thin-film magnetic power inductors. Soft-magnetic materials and inductor topologies are selected and optimized, with intent to maximize efficiency and current density of the integrated regulators. A custom integrated circuit (IC) is designed and fabricated in 45-nm CMOS silicon-on-insulator (SOI) to provide the control system and power-train necessary to drive the power inductors, in addition to providing a digital load for the converter. A silicon interposer is designed and fabricated in collaboration with IBM Research to integrate custom power inductors by chip stacking with the 45-nm CMOS integrated circuit, enabling power conversion with current density greater than 10A/mm2. The concepts and designs developed from this work enable significant improvements in performance-per-watt of future microprocessors in servers, desktops, and mobile devices. These new approaches to scaled voltage regulation for computing devices also promise significant impact on electricity consumption in the United States and abroad by improving the efficiency of all computational platforms. In 2006, servers and datacenters in the United States consumed an estimated 61 billion kWh or about 1.5% of the nation's total energy consumption. Federal Government servers and data centers alone accounted for about 10 billion kWh, for a total annual energy cost of about $450 million. Based upon market growth and efficiency trends, estimates place current server and datacenter power consumption at nearly 85 billion kWh in the US and at almost 280 billion kWh worldwide. Similar estimates place national desktop, mobile and portable computing at 80 billion kWh combined. While national electricity utilization for computation amounts to only 4% of current usage, it is growing at a rate of about 10% a year with volume servers representing one of the largest growth segments due to the increasing utilization of cloud-based services. The percentage of power that is consumed by the processor in a server varies but can be as much as 30% of the total power utilization, with an additional 50% associated with heat removal. The approaches considered here should allow energy efficiency gains as high as 30% in processors for all computing platforms, from high-end servers to smart phones, resulting in a direct annual energy savings of almost 15 billion kWh nationally, and 50 billion kWh globally. The work developed here is being commercialized by the start-up venture, Ferric Semiconductor, which has already secured two Phase I SBIR grants to bring these technologies to the marketplace.

  10. Table 11.2b Carbon Dioxide Emissions From Energy Consumption: Commercial Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    b Carbon Dioxide Emissions From Energy Consumption: Commercial Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal Natural Gas 3 Petroleum Retail Electricity 7 Total 2 Biomass 2 Distillate Fuel Oil 4 Kerosene LPG 5 Motor Gasoline 6 Petroleum Coke Residual Fuel Oil Total Wood 8 Waste 9 Fuel Ethanol 10 Total 1949 148 19 16 3 2 7 NA 28 55 58 280 2 NA NA 2 1950 147 21 19 3 2 7 NA 33 66 63 297 2 NA NA 2 1951 125 25 21 4 3 8 NA 34 70 69 289 2 NA NA 2 1952 112 28 22 4 3 8 NA 35 71 73

  11. Table 11.2e Carbon Dioxide Emissions From Energy Consumption: Electric Power Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide )

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

    e Carbon Dioxide Emissions From Energy Consumption: Electric Power Sector, 1949-2011 (Million Metric Tons of Carbon Dioxide 1) Year Coal Natural Gas 3 Petroleum Geo- thermal Non- Biomass Waste 5 Total 2 Biomass 2 Distillate Fuel Oil 4 Petroleum Coke Residual Fuel Oil Total Wood 6 Waste 7 Total 1949 187 30 2 NA 30 33 NA NA 250 1 NA 1 1950 206 35 2 NA 35 37 NA NA 278 1 NA 1 1951 235 42 2 NA 29 31 NA NA 308 1 NA 1 1952 240 50 2 NA 31 33 NA NA 323 1 NA 1 1953 260 57 3 NA 38 40 NA NA 358 (s) NA (s)

  12. Scale-up of mild gasification to be a process development unit mildgas 24 ton/day PDU design report. Final report, November 1991--July 1996

    SciTech Connect (OSTI)

    1996-03-01

    From November 1991 to April 1996, Kerr McGee Coal Corporation (K-M Coal) led a project to develop the Institute of Gas Technology (IGT) Mild Gasification (MILDGAS) process for near-term commercialization. The specific objectives of the program were to: design, construct, and operate a 24-tons/day adiabatic process development unit (PDU) to obtain process performance data suitable for further design scale-up; obtain large batches of coal-derived co-products for industrial evaluation; prepare a detailed design of a demonstration unit; and develop technical and economic plans for commercialization of the MILDGAS process. The project team for the PDU development program consisted of: K-M Coal, IGT, Bechtel Corporation, Southern Illinois University at Carbondale (SIUC), General Motors (GM), Pellet Technology Corporation (PTC), LTV Steel, Armco Steel, Reilly Industries, and Auto Research.

  13. Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on...

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

    CSIS in Washington D.C. on Energy Security 40 Years after the Embargo - As Delivered Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on Energy Security 40 Years after ...

  14. GRR Update Meeting scheduled for 9/13 in D.C. | OpenEI Community

    Open Energy Info (EERE)

    GRR Update Meeting scheduled for 913 in D.C. Home > Blogs > Kyoung's blog Kyoung's picture Submitted by Kyoung(150) Contributor 6 September, 2012 - 08:51 D.C. GRR meeting update...

  15. Global DC Power System Market Trends, Analysis 2015-2019 | OpenEI...

    Open Energy Info (EERE)

    either positive or negative. It can be powered from an AC or DC source. A basic DC power system consists of a transformer, a rectifier, a filter, and a regulator. All these...

  16. Global DC Power System Market Key Vendors | OpenEI Community

    Open Energy Info (EERE)

    either positive or negative. It can be powered from an AC or DC source. A basic DC power system consists of a transformer, a rectifier, a filter, and a regulator. All these...

  17. Fault Detection and Isolation in Low-Voltage DC Distribution System -

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

    Energy Innovation Portal Electricity Transmission Electricity Transmission Building Energy Efficiency Building Energy Efficiency Find More Like This Return to Search Fault Detection and Isolation in Low-Voltage DC Distribution System University of Colorado Contact CU About This Technology Publications: PDF Document Publication CU2941D-3222D (DC Microgrid) Marketing Summary.pdf (172 KB) Conceptual diagram of a DC distribution system Conceptual diagram of a DC distribution system Technology

  18. Proceedings of the National Hydrogen Energy Roadmap Workshop: Washington, DC; April 2-3, 2002

    Broader source: Energy.gov [DOE]

    Summary of the Proceedings of the National Hydrogen Energy Roadmap Workshop held April 2-3, 2002 in Washington, DC.

  19. Secretary Moniz's Remarks at the Powering Africa Summit in Washington, D.C.-- As Delivered

    Broader source: Energy.gov [DOE]

    Secretary Moniz's remarks, as delivered, at the Power Africa Summit in Washington, D.C. on January 29, 2015.

  20. Demonstration of LED Retrofit Lamps at the Smithsonian Art Museum, Washington, DC

    SciTech Connect (OSTI)

    Miller, N. J.; Rosenfeld, S. M.

    2012-06-01

    GATEWAY program report on a demonstration of LED retrofit lamps at the Smithsonian American Art Museum in Washington, DC.

  1. Interviews in Washington, DC for Albert Einstein Fellowship Semi-Finalists

    Broader source: Energy.gov [DOE]

    Selected semi-finalists in the Albert Einstein Distinguished Educator Fellowship are invited to DC for interviews.

  2. A Segmented Drive System with a Small DC Bus Capacitor | Department of

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

    Energy apep_08_su.pdf More Documents & Publications A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor

  3. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng (Knoxville, TN); Lai, Jih-Sheng (Blacksburg, VA)

    2002-01-01

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  4. Multilevel cascade voltage source inverter with separate DC sources

    DOE Patents [OSTI]

    Peng, F.Z.; Lai, J.S.

    1997-06-24

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

  5. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng; Lai, Jih-Sheng

    2001-04-03

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  6. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng; Lai, Jih-Sheng

    1997-01-01

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  7. Modeling Microinverters and DC Power Optimizers in PVWatts

    SciTech Connect (OSTI)

    MacAlpine, S.; Deline, C.

    2015-02-01

    Module-level distributed power electronics including microinverters and DC power optimizers are increasingly popular in residential and commercial PV systems. Consumers are realizing their potential to increase design flexibility, monitor system performance, and improve energy capture. It is becoming increasingly important to accurately model PV systems employing these devices. This document summarizes existing published documents to provide uniform, impartial recommendations for how the performance of distributed power electronics can be reflected in NREL's PVWatts calculator (http://pvwatts.nrel.gov/).

  8. UNITED STATES DEPARTMENT OF ENERGY Washington, D.C.

    Energy Savers [EERE]

    Before the UNITED STATES DEPARTMENT OF ENERGY Washington, D.C. In the Matter of Request for Information ) Regarding Reducing Regulatory Burden ) ''Regulatory Burden RFI" 5 CFR Chapter XXII ) 10 CFR Chapters II, III, and X ) COMMENTS OF THE CONSUMER ELECTRONICS ASSOCIATION Introduction The Consumer Electronics Association (CEA) is the preeminent trade association promoting growth in the $285 billion U.S. consumer electronics industry. CEA represents more than 2,000 corporate members involved

  9. DC Microgrids Scoping Study: Estimate of Technical and Economic Benefits

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

    (March 2015) | Department of Energy Microgrids Scoping Study: Estimate of Technical and Economic Benefits (March 2015) DC Microgrids Scoping Study: Estimate of Technical and Economic Benefits (March 2015) Microgrid demonstrations and deployments have shown the ability of microgrids to provide higher reliability and higher power quality than utility power systems and improved energy utilization. The vast majority of these microgrids are based on AC power, but some manufacturers, power system

  10. dc-plasma-sprayed electronic-tube device

    DOE Patents [OSTI]

    Meek, T.T.

    1982-01-29

    An electronic tube and associated circuitry which is produced by dc plasma arc spraying techniques is described. The process is carried out in a single step automated process whereby both active and passive devices are produced at very low cost. The circuitry is extremely reliable and is capable of functioning in both high radiation and high temperature environments. The size of the electronic tubes produced are more than an order of magnitude smaller than conventional electronic tubes.

  11. Synthesis of silicon nanotubes by DC arc plasma method

    SciTech Connect (OSTI)

    Tank, C. M.; Bhoraskar, S. V.; Mathe, V. L.

    2012-06-05

    Plasma synthesis is a novel technique of synthesis of nanomaterials as they provide high rate of production and promote metastable reactions. Very thin walled silicon nanotubes were synthesized in a DC direct arc thermal plasma reactor. The effect of parameters of synthesis i.e. arc current and presence of hydrogen on the morphology of Si nanoparticles is reported. Silicon nanotubes were characterized by Transmission Electron Microscopy (TEM), Local Energy Dispersive X-ray analysis (EDAX), and Scanning Tunneling Microscopy (STM).

  12. AVTA: Battery Testing- DC Fast Charging's Effects on PEV Batteries

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future research and development. The following report describes DC fast charging's effects on plug-in electric vehicle batteries. This research was conducted by Idaho National Laboratory.

  13. Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination

    DOE Patents [OSTI]

    Lai, Jih-Sheng (Blacksburg, VA); Liu, Changrong (Sunnyvale, CA); Ridenour, Amy (Salem, VA)

    2009-04-14

    DC/DC converter has a transformer having primary coils connected to an input side and secondary coils connected to an output side. Each primary coil connects a full-bridge circuit comprising two switches on two legs, the primary coil being connected between the switches on each leg, each full-bridge circuit being connected in parallel wherein each leg is disposed parallel to one another, and the secondary coils connected to a rectifying circuit. An outer loop control circuit that reduces ripple in a voltage reference has a first resistor connected in series with a second resistor connected in series with a first capacitor which are connected in parallel with a second capacitor. An inner loop control circuit that reduces ripple in a current reference has a third resistor connected in series with a fourth resistor connected in series with a third capacitor which are connected in parallel with a fourth capacitor.

  14. Microsoft PowerPoint - 04-10 DC_Ruhl.ppt [Compatibility Mode...

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

    ... Structural change in oil markets Natural gas: a new game How does it matter? Conclusion BP 2010 1. Climate Change Policies Index: 1970 100 CO2 Intensity of Energy Tons ...

  15. Application to Export Electric Energy OE Docket No. EA-351 DC Energy

    Energy Savers [EERE]

    Dakota, LLC | Department of Energy 1 DC Energy Dakota, LLC Application to Export Electric Energy OE Docket No. EA-351 DC Energy Dakota, LLC Application from DC Energy Dakota, LLC to export electric energy to Canada PDF icon Application to Export Electric Energy OE Docket No. EA-351 DC Energy Dakota, LLC More Documents & Publications EA-351 DC Energy Dakota, LLC Application to export electric energy OE Docket No. EA-210-B PPL EnergyPlus, LLC Application to Export Electric Energy OE Docket

  16. Corrosion of aluminum clad spent nuclear fuel in the 70 ton cask during transfer from L area to H-canyon

    SciTech Connect (OSTI)

    Mickalonis, J. I.

    2015-08-01

    Aluminum-clad spent nuclear fuel will be transported for processing in the 70-ton nuclear fuel element cask from L Basin to H-canyon. During transport these fuels would be expected to experience high temperature aqueous corrosion from the residual L Basin water that will be present in the cask. Cladding corrosion losses during transport were calculated for material test reactor (MTR) and high flux isotope reactors (HFIR) fuels using literature and site information on aqueous corrosion at a range of time/temperature conditions. Calculations of the cladding corrosion loss were based on Arrhenius relationships developed for aluminum alloys typical of cladding material with the primary assumption that an adherent passive film does not form to retard the initial corrosion rate. For MTR fuels a cladding thickness loss of 33% was found after 1 year in the cask with a maximum temperature of 263 °C. HFIR fuels showed a thickness loss of only 6% after 1 year at a maximum temperature of 180 °C. These losses are not expected to impact the overall confinement function of the aluminum cladding.

  17. CORROSION OF ALUMINUM CLAD SPENT NUCLEAR FUEL IN THE 70 TON CASK DURING TRANSFER FROM L AREA TO H-CANYON

    SciTech Connect (OSTI)

    Mickalonis, J.

    2014-06-01

    Aluminum-clad spent nuclear fuel will be transported for processing in the 70-ton nuclear fuel element cask from L Basin to H-canyon. During transport these fuels would be expected to experience high temperature aqueous corrosion from the residual L Basin water that will be present in the cask. Cladding corrosion losses during transport were calculated for material test reactor (MTR) and high flux isotope reactors (HFIR) fuels using literature and site information on aqueous corrosion at a range of time/temperature conditions. Calculations of the cladding corrosion loss were based on Arrhenius relationships developed for aluminum alloys typical of cladding material with the primary assumption that an adherent passive film does not form to retard the initial corrosion rate. For MTR fuels a cladding thickness loss of 33 % was found after 1 year in the cask with a maximum temperature of 260 {degrees}C. HFIR fuels showed a thickness loss of only 6% after 1 year at a maximum temperature of 180 {degrees}C. These losses are not expected to impact the overall confinement function of the aluminum cladding.

  18. Corrosion of aluminum clad spent nuclear fuel in the 70 ton cask during transfer from L area to H-canyon

    SciTech Connect (OSTI)

    Mickalonis, J. I.

    2015-08-31

    Aluminum-clad spent nuclear fuel will be transported for processing in the 70-ton nuclear fuel element cask from L Basin to H-canyon. During transport these fuels would be expected to experience high temperature aqueous corrosion from the residual L Basin water that will be present in the cask. Cladding corrosion losses during transport were calculated for material test reactor (MTR) and high flux isotope reactors (HFIR) fuels using literature and site information on aqueous corrosion at a range of time/temperature conditions. Calculations of the cladding corrosion loss were based on Arrhenius relationships developed for aluminum alloys typical of cladding material with the primary assumption that an adherent passive film does not form to retard the initial corrosion rate. For MTR fuels a cladding thickness loss of 33 % was found after 1 year in the cask with a maximum temperature of 263 °C. HFIR fuels showed a thickness loss of only 6% after 1 year at a maximum temperature of 180 °C. These losses are not expected to impact the overall confinement function of the aluminum cladding.

  19. Hardwired Control Changes For NSTX DC Power Feeds

    SciTech Connect (OSTI)

    Ramakrishnan, S.

    2013-06-28

    The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physics Laboratory (PPPL). Most of the hardware, plant facilities, auxiliary sub-systems, and power systems originally used for the Tokamak Fusion Test Reactor (TFTR) have been used with suitable modifications to reflect NSTX needs. The original TFTR Hardwired Control System (HCS) with electromechanical relays was used for NSTX DC Power loop control and protection during NSTX operations. As part of the NSTX Upgrade, the HCS is being changed to a PLC-based system with the same control logic. This paper gives a description of the changeover to the new PLC-based system __________________________________________________

  20. Notices Ave. SW., Room 3E207, Washington, DC

    Energy Savers [EERE]

    5295 Federal Register / Vol. 81, No. 55 / Tuesday, March 22, 2016 / Notices Ave. SW., Room 3E207, Washington, DC 20202. Telephone: (202) 453-6891 or by email: ddra@ed.gov. If you use a TDD or a TTY, call the FRS, toll free, at 1-800-877-8339. If you request an application from ED Pubs, be sure to identify this program as follows: CFDA number 84.022A. VIII. Other Information Accessible Format: Individuals with disabilities can obtain this document and a copy of the application package in an

  1. Heteroepitaxial Ge-on-Si by DC magnetron sputtering

    SciTech Connect (OSTI)

    Steglich, Martin; Schrempel, Frank; Füchsel, Kevin; Kley, Ernst-Bernhard; Patzig, Christian; Berthold, Lutz; Höche, Thomas; Tünnermann, Andreas; Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Albert-Einstein-Str. 7, 07745 Jena

    2013-07-15

    The growth of Ge on Si(100) by DC Magnetron Sputtering at various temperatures is studied by Spectroscopic Ellipsometry and Transmission Electron Microscopy. Smooth heteroepitaxial Ge films are prepared at relatively low temperatures of 380°C. Typical Stransky-Krastanov growth is observed at 410°C. At lower temperatures (320°C), films are essentially amorphous with isolated nanocrystallites at the Si-Ge interface. A minor oxygen contamination at the interface, developing after ex-situ oxide removal, is not seen to hinder epitaxy. Compensation of dislocation-induced acceptors in Ge by sputtering from n-doped targets is proposed.

  2. Positron lifetime spectrometer using a DC positron beam

    DOE Patents [OSTI]

    Xu, Jun; Moxom, Jeremy

    2003-10-21

    An entrance grid is positioned in the incident beam path of a DC beam positron lifetime spectrometer. The electrical potential difference between the sample and the entrance grid provides simultaneous acceleration of both the primary positrons and the secondary electrons. The result is a reduction in the time spread induced by the energy distribution of the secondary electrons. In addition, the sample, sample holder, entrance grid, and entrance face of the multichannel plate electron detector assembly are made parallel to each other, and are arranged at a tilt angle to the axis of the positron beam to effectively separate the path of the secondary electrons from the path of the incident positrons.

  3. DC switching regulated power supply for driving an inductive load

    DOE Patents [OSTI]

    Dyer, G.R.

    1983-11-29

    A dc switching regulated power supply for driving an inductive load is provided. The regulator basic circuit is a bridge arrangement of diodes and transistors. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. A dc power supply is connected to the input of the bridge and the output is connected to the load. A servo controller is provided to control the switching rate of the transistors to maintain a desired current to the load. The regulator may be operated in three stages or modes: (1) for current runup in the load, both first and second transistor switch arrays are turned on and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned off, and load current flywheels through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays off, allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load.

  4. Single-mode deformation via nanoindentation in dc-Si

    SciTech Connect (OSTI)

    Wong, Sherman; Haberl, Bianca; Williams, James S.; Bradby, Jodie E.

    2015-01-01

    The mixture of the metastable body-centered cubic (bc8) and rhombohedral (r8) phases of silicon that is formed via nanoindentation of diamond cubic (dc) silicon exhibits properties that are of scientifc and technological interest. This letter demonstrates that large regions of this mixed phase can be formed in crystalline Si via nanoindentation without signifcant damage to the surrounding crystal. Cross-sectional transmission electron microscopy is used to show that volumes 6 um wide and up to 650 nm deep can be generated in this way using a spherical tip of 21.5 um diameter. The phase transformed region is characterised using both Raman microspectroscopy and transmission electron microscopy. It is found that uniform loading using large spherical indenters can favor phase transformation as the sole deformation mechanism as long as the maximum load is below a critical level. We suggest that the sluggish nature of the transformation from the dc-Si phase to the metallic (b-Sn) phase normally results in competing deformation mechanisms such as slip and cracking but these can be suppressed by controlled loading conditions.

  5. Better Buildings Summit Kicks off in Washington, DC | Department of Energy

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

    Better Buildings Summit Kicks off in Washington, DC Better Buildings Summit Kicks off in Washington, DC May 9, 2016 - 11:11am Addthis The 2016 Better Buildings Summit kicked off today in Washington, DC, bringing together leading organizations across key sectors to showcase solutions to cut energy intensity in their buildings portfolio-wide by 20% over the next ten years. During this three day event, partners and stakeholders will exchange best practices, highlight demonstrated market solutions

  6. We Have a Winner - DC High School Regional Science Bowl Competition Held

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

    Last Saturday | Department of Energy We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday February 11, 2013 - 10:30am Addthis We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday Annie Whatley Annie Whatley Deputy Director, Office of Minority Education and Community Development As part of the National Science Bowl, more than 9,500 high

  7. D.C. Middle and High School Students Get a Chance to Experience the

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

    Regional Science Bowl Competition Setting | Department of Energy D.C. Middle and High School Students Get a Chance to Experience the Regional Science Bowl Competition Setting D.C. Middle and High School Students Get a Chance to Experience the Regional Science Bowl Competition Setting March 26, 2014 - 1:07pm Addthis Annie Whatley Annie Whatley Deputy Director, Office of Minority Education and Community Development Have you ever heard of the Washington, D.C. regional science bowl competition?

  8. Decoherence and dephasing errors caused by the dc Stark effect in rapid ion

    Office of Scientific and Technical Information (OSTI)

    transport (Journal Article) | SciTech Connect Decoherence and dephasing errors caused by the dc Stark effect in rapid ion transport Citation Details In-Document Search Title: Decoherence and dephasing errors caused by the dc Stark effect in rapid ion transport We investigate the error due to the dc Stark effect for quantum information processing for trapped ion quantum computers using the scalable architecture proposed in D. Wineland et al. [J. Res. Natl. Inst. Stand. Technol. 103, 259

  9. DC Students Flex Their Mental Muscles in Regional Science Bowl Competition

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

    | Department of Energy DC Students Flex Their Mental Muscles in Regional Science Bowl Competition DC Students Flex Their Mental Muscles in Regional Science Bowl Competition February 23, 2015 - 3:12pm Addthis DC Students Flex Their Mental Muscles in Regional Science Bowl Competition Students across the country are flexing their mental muscles to earn a top spot in the Department of Energy's National Science BowlÂź competition. High school students in the nation's capital were able to showcase

  10. Optimization of spin-torque switching using AC and DC pulses

    SciTech Connect (OSTI)

    Dunn, Tom; Kamenev, Alex

    2014-06-21

    We explore spin-torque induced magnetic reversal in magnetic tunnel junctions using combined AC and DC spin-current pulses. We calculate the optimal pulse times and current strengths for both AC and DC pulses as well as the optimal AC signal frequency, needed to minimize the Joule heat lost during the switching process. The results of this optimization are compared against numeric simulations. Finally, we show how this optimization leads to different dynamic regimes, where switching is optimized by either a purely AC or DC spin-current, or a combination AC/DC spin-current, depending on the anisotropy energies and the spin-current polarization.

  11. EERE Success Story—Washington, D.C. and Indiana: Allison Hybrid Technology Achieves Commercial Success

    Office of Energy Efficiency and Renewable Energy (EERE)

    EERE partner, Allison Transmission, Inc., has achieved commercial success in the greater Washington, D.C. area, with 1,480 hybrid buses on the road.

  12. A Segmented Drive Inverter Topology with a Small DC Bus Capacitor

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  13. U.S. Department of Energy Forrestal Building, Washington, D.C. | Department

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

    of Energy Forrestal Building, Washington, D.C. U.S. Department of Energy Forrestal Building, Washington, D.C. Photo of Photovoltaic System at the Forrestal Building in Washington, DC The U.S. Department of Energy (DOE) is housed in the Forrestal Building in Washington, DC. A photovoltaic (PV) system was installed as part of the DOE's support of alternative energy and the Federal initiatives to lower energy usage. The 3 kW AC PV system is mounted on a balcony on the south side of the

  14. Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area

    Broader source: Energy.gov [DOE]

    Today, Secretary Moniz spoke at an event welcoming the arrival of the solar-powered Solar Impulse plane at Dulles International Airport near Washington, D.C.

  15. An Active Filter Approach to the Reduction of the DC Link Capacitor

    Broader source: Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  16. Washington, D.C. and Indiana: Allison Hybrid Technology Achieves Commercial Success

    Broader source: Energy.gov [DOE]

    EERE partner, Allison Transmission, Inc., has achieved commercial success in the greater Washington, D.C. area, with 1,480 hybrid buses on the road.

  17. 103 Teams to Head to DOE's National Science Bowl in Washington, D.C. |

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

    Department of Energy 3 Teams to Head to DOE's National Science Bowl in Washington, D.C. 103 Teams to Head to DOE's National Science Bowl in Washington, D.C. April 23, 2009 - 12:00am Addthis WASHINGTON, DC- Students from 67 high school teams and 36 middle school teams from across the nation will compete next weekend for championship titles in the U.S. Department of Energy's (DOE) National Science Bowl in Washington D.C. The National Science Bowl is the nation's largest academic competition of

  18. Discharging a DC bus capacitor of an electrical converter system

    DOE Patents [OSTI]

    Kajouke, Lateef A; Perisic, Milun; Ransom, Ray M

    2014-10-14

    A system and method of discharging a bus capacitor of a bidirectional matrix converter of a vehicle are presented here. The method begins by electrically shorting the AC interface of the converter after an AC energy source is disconnected from the AC interface. The method continues by arranging a plurality of switching elements of a second energy conversion module into a discharge configuration to establish an electrical current path from a first terminal of an isolation module, through an inductive element, and to a second terminal of the isolation module. The method also modulates a plurality of switching elements of a first energy conversion module, while maintaining the discharge configuration of the second energy conversion module, to at least partially discharge a DC bus capacitor.

  19. Auxiliary quasi-resonant dc tank electrical power converter

    DOE Patents [OSTI]

    Peng, Fang Z.

    2006-10-24

    An auxiliary quasi-resonant dc tank (AQRDCT) power converter with fast current charging, voltage balancing (or charging), and voltage clamping circuits is provided for achieving soft-switched power conversion. The present invention is an improvement of the invention taught in U.S. Pat. No. 6,111,770, herein incorporated by reference. The present invention provides faster current charging to the resonant inductor, thus minimizing delay time of the pulse width modulation (PWM) due to the soft-switching process. The new AQRDCT converter includes three tank capacitors or power supplies to achieve the faster current charging and minimize the soft-switching time delay. The new AQRDCT converter further includes a voltage balancing circuit to charge and discharge the three tank capacitors so that additional isolated power supplies from the utility line are not needed. A voltage clamping circuit is also included for clamping voltage surge due to the reverse recovery of diodes.

  20. Superconducting DC and RF Properties of Ingot Niobium

    SciTech Connect (OSTI)

    Pashupati Dhakal, Gianluigi Ciovati, Peter Kneisel, Ganapati Rao Myneni

    2011-07-01

    The thermal conductivity, DC magnetization and penetration depth of large-grain niobium hollow cylindrical rods fabricated from ingots, manufactured by CBMM subjected to chemical and heat treatment were measured. The results confirm the influence of chemical and heat-treatment processes on the superconducting properties, with no significant dependence on the impurity concentrations in the original ingots. Furthermore, RF properties, such as the surface resistance and quench field of the niobium rods were measured using a TE{sub 011} cavity. The hollow niobium rod is the center conductor of this cavity, converting it to a coaxial cavity. The quench field is limited by the critical heat flux through the rods' cooling channel.

  1. Disc rotors with permanent magnets for brushless DC motor

    DOE Patents [OSTI]

    Hawsey, Robert A.; Bailey, J. Milton

    1992-01-01

    A brushless dc permanent magnet motor drives an autonomous underwater vehe. In one embodiment, the motor comprises four substantially flat stators in stacked relationship, with pairs of the stators axially spaced, each of the stators comprising a tape-wound stator coil, and first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and a drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore in which the first shaft is disposed. Two different sets of bearings support the first and second shafts. In another embodiment, the motor comprises two ironless stators and pairs of rotors mounted on opposite sides of the stators and driven by counterrotating shafts.

  2. DC switching regulated power supply for driving an inductive load

    DOE Patents [OSTI]

    Dyer, George R.

    1986-01-01

    A power supply for driving an inductive load current from a dc power supply hrough a regulator circuit including a bridge arrangement of diodes and switching transistors controlled by a servo controller which regulates switching in response to the load current to maintain a selected load current. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. The regulator may be operated in three "stages" or modes: (1) For current runup in the load, both first and second transistor switch arrays are turned "on" and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned "off", and load current "flywheels" through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays "off", allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load. The three operating states are controlled automatically by the controller.

  3. QER Second Installment Public Meeting-Washington, DC | Department of Energy

    Energy Savers [EERE]

    Initiatives » The Quadrennial Energy Review (QER) » Quadrennial Energy Review Stakeholder Engagement » QER Second Installment Public Meeting-Washington, DC QER Second Installment Public Meeting-Washington, DC MEETING DATE AND LOCATION Thursday, February 4, 2016 Doors open: 8:30 AM; Program begins: 9:30 AM U.S. Capitol Visitor Center 1st and East Capitol Streets NE Washington, DC 20510 Watch the February 4th Stakeholder Meeting here. MEETING INFORMATION The U.S. Department of Energy Secretary

  4. DC power transmission from the Leningradskaya Nuclear Power Plant to Vyborg

    SciTech Connect (OSTI)

    Koshcheev, L. A.; Shul'ginov, N. G.

    2011-05-15

    DC power transmission from the Leningradskaya Nuclear Power Plant (LAES) to city of Vyborg is proposed. This will provide a comprehensive solution to several important problems in the development and control of the unified power system (EES) of Russia.

  5. Existing Homes Retrofit Case Study: Consortium for Advanced Residential Buildings (CARB), Washington, D.C.

    SciTech Connect (OSTI)

    2009-09-01

    This is a Building America fact sheet describing Consortium for Advanced Residential Buildiings (CARB) whole building retrofit process to renovate a 145-year-old home in Washington, D.C.

  6. Careers and disAbled DC Career Expo | Department of Energy

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

    10:00AM to 3:00PM EST Ronald Reagan Building, 1300 Pennsylvania Ave., NW, Washington, DC 20004 POC: Donna Friend More Info Careers & Internships The White House USA.gov Energy.gov...

  7. DC Pro Software Tool Suite, Data Center Fact Sheet, Industrial Technologies Program

    SciTech Connect (OSTI)

    Not Available

    2009-04-01

    This fact sheet describes how DOE's Data Center Energy Profiler (DC Pro) Software Tool Suite and other resources can help U.S. companies identify ways to improve the efficiency of their data centers.

  8. Multilevel-Dc-Bus Inverter For Providing Sinusoidal And Pwm Electrical Machine Voltages

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN

    2005-11-29

    A circuit for controlling an ac machine comprises a full bridge network of commutation switches which are connected to supply current for a corresponding voltage phase to the stator windings, a plurality of diodes, each in parallel connection to a respective one of the commutation switches, a plurality of dc source connections providing a multi-level dc bus for the full bridge network of commutation switches to produce sinusoidal voltages or PWM signals, and a controller connected for control of said dc source connections and said full bridge network of commutation switches to output substantially sinusoidal voltages to the stator windings. With the invention, the number of semiconductor switches is reduced to m+3 for a multi-level dc bus having m levels. A method of machine control is also disclosed.

  9. Linked Open Data Workshop in Washington, D.C. | OpenEI Community

    Open Energy Info (EERE)

    Home > Linked Open Data Workshop in Washington, D.C. > Posts by term Content Group Activity By term Q & A Feeds Event (2) linked open data (2) LOD (2) notes (1) Open Data (2)...

  10. Linked Open Data Workshop in Washington, D.C. | OpenEI Community

    Open Energy Info (EERE)

    Linked Open Data Workshop in Washington, D.C. Home > Features > Groups Content Group Activity By term Q & A Feeds Content type Blog entry Discussion Document Event Poll...

  11. Linked Open Data Workshop in Washington, D.C. - Q & A | OpenEI...

    Open Energy Info (EERE)

    - Q & A Home > Linked Open Data Workshop in Washington, D.C. Content Group Activity By term Q & A Feeds No questions have been added to this group yet....

  12. Linked Open Data Workshop in Washington, D.C. | OpenEI Community

    Open Energy Info (EERE)

    Groups > Groups > Linked Open Data Workshop in Washington, D.C. Content Group Activity By term Q & A Feeds There are no feeds from external sites for this group. Groups Menu You...

  13. DC Resistivity Survey (Mise-A-La-Masse) | Open Energy Information

    Open Energy Info (EERE)

    fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png DC Resistivity Survey (Mise-A-La-Masse): No definition has been...

  14. Vehicle Technologies Office Merit Review 2014: High Performance DC Bus Film Capacitor

    Broader source: Energy.gov [DOE]

    Presentation given by GE Global Research at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high performance DC bus...

  15. Vehicle Technologies Office Merit Review 2015: High Performance DC Bus Film Capacitor

    Broader source: Energy.gov [DOE]

    Presentation given by GE Global Research at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high performance DC bus...

  16. A highly stable DC power supply for precision magnetic field measurements and other purposes

    SciTech Connect (OSTI)

    Ino, Takashi

    2012-04-15

    A homogeneous magnetic field is essential for the {sup 3}He neutron spin filter used to polarize neutron beams and analyze neutron spins in neutron scattering. The required spatial uniformity of the magnetic field is on the order of 10{sup -4}/cm or less. To measure such uniformity, one needs a DC current source with a current stability much better than 10{sup -4}. However, laboratory DC power supplies, which are commonly used in many {sup 3}He neutron spin filters, do not have such stabilities. To attain a highly stable current with a common laboratory DC power supply for every {sup 3}He neutron spin filter, a simple feedback circuit has been developed to keep the output current stable up to 10{sup -6}. Such a highly stable current or voltage from a common laboratory DC power supply can also be used for various other research applications.

  17. Dielectric relaxation and conduction in SrTiO{sub 3} thin films under dc bias

    SciTech Connect (OSTI)

    Ang, Chen; Yu, Zhi; Cross, L. E.; Guo, Ruyan; Bhalla, A. S.

    2001-08-06

    The dielectric and conduction behavior of SrTiO{sub 3} thin films deposited on a SrTiO{sub 3} single-crystal substrate is studied. Without dc bias, an obvious dielectric 'defect mode' in the dielectric loss is observed in the temperature range of {approx}100--200 K; however, no noticeable corresponding dielectric constant peak is observed. By applying a high dc bias ({>=}40 kV/cm), a dielectric constant peak with frequency dispersion appears in the same temperature range, the dielectric loss is increased, and simultaneously high dc conduction is observed. The induced dielectric constant peak is related to dc conduction and attributed to the coupling effect of the mobile carriers with the dielectric defect mode. {copyright} 2001 American Institute of Physics.

  18. Report from the Field: Nutrient and Energy Recovery at DC Water

    Broader source: Energy.gov [DOE]

    Presentation by Mark Ramirez, DC Water, during the "Technological State of the Art" panel at the Hydrogen, Hydrocarbons, and Bioproduct Precursors from Wastewaters Workshop held March 18–19, 2015.

  19. FUPWG Spring 2011 Washington, D.C., Update | Department of Energy

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

    1 Washington, D.C., Update FUPWG Spring 2011 Washington, D.C., Update Presentation covers the Federal Utility Partnership Working Group (FUPWG) Washington update, and is given during the FUPWG Spring 2011 meeting. PDF icon fupwg_spring11_sschell.pdf More Documents & Publications Federal Utility Partnership Working Group 2011 Meeting: Washington Update UESC Data Collection Update Federal Utility Partnership Working Group Meeting: Washington Update

  20. Report Now Available: DC Microgrids Scoping Study--Estimate of Technical and Economic Benefits (March 2015)

    Broader source: Energy.gov [DOE]

    Los Alamos National Laboratory has released a report titled DC Microgrids Scoping Study: Estimate of Technical and Economic Benefits, which presents the results of a study by several national labs and funded by the Office of Electricity Delivery & Energy Reliability. The study provides a preliminary examination of the benefits and drawbacks of potential DC microgrid applications relative to their AC counterparts, using several metrics for comparison, and offers recommendations for potential future research and deployment activities.

  1. EERE Success Story-Washington, D.C. and Tennessee: Bioenergy Technologies

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

    Office Announces Launch of New and Improved KDF | Department of Energy Washington, D.C. and Tennessee: Bioenergy Technologies Office Announces Launch of New and Improved KDF EERE Success Story-Washington, D.C. and Tennessee: Bioenergy Technologies Office Announces Launch of New and Improved KDF January 31, 2014 - 12:00am Addthis In September 2013, the Bioenergy Technologies Office (BETO) launched a revamped, easier-to-use version of the Bioenergy Knowledge Discovery Framework. Initially

  2. Students Recognized in Washington, D.C. for their Winning Bioenergy

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

    Infographic | Department of Energy Students Recognized in Washington, D.C. for their Winning Bioenergy Infographic Students Recognized in Washington, D.C. for their Winning Bioenergy Infographic September 24, 2015 - 10:21am Addthis A team of high school students designed this infographic about cellulosic ethanol. View the entire infographic from the <a href="http://energy.gov/eere/bioenergy/bioenergizeme-infographic-challenge-cellulosic-ethanol">Bioenergy Technologies Office

  3. Local Teams from PA, WV Travel to Washington D.C. for National Science Bowl

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

    | netl.doe.gov Regional News Local Teams from PA, WV Travel to Washington D.C. for National Science Bowl Pittsburgh, Pa. - The National Energy Technology Laboratory have sent the regional winners of the southwestern Pennsylvania (SWPA) and West Virginia Science Bowls off to compete in the U.S. Department of Energy National Science Bowl April 28-May 2, 2016, in Washington, D.C. By winning their regional tournaments, the Marshall Middle School (Wexford, PA), Morgantown High School (Morgantown,

  4. DC Motor control using motor-generator set with controlled generator field

    DOE Patents [OSTI]

    Belsterling, Charles A.; Stone, John

    1982-01-01

    A d.c. generator is connected in series opposed to the polarity of a d.c. power source supplying a d.c. drive motor. The generator is part of a motor-generator set, the motor of which is supplied from the power source connected to the motor. A generator field control means varies the field produced by at least one of the generator windings in order to change the effective voltage output. When the generator voltage is exactly equal to the d.c. voltage supply, no voltage is applied across the drive motor. As the field of the generator is reduced, the drive motor is supplied greater voltage until the full voltage of the d.c. power source is supplied when the generator has zero field applied. Additional voltage may be applied across the drive motor by reversing and increasing the reversed field on the generator. The drive motor may be reversed in direction from standstill by increasing the generator field so that a reverse voltage is applied across the d.c. motor.

  5. Table 11.5a Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Total (All Sectors), 1989-2010 (Sum of Tables 11.5b and 11.5c; Metric Tons of Gas)

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

    a Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Total (All Sectors), 1989-2010 (Sum of Tables 11.5b and 11.5c; Metric Tons of Gas) Year Carbon Dioxide 1 Sulfur Dioxide Nitrogen Oxides Coal 2 Natural Gas 3 Petroleum 4 Geo- thermal 5 Non- Biomass Waste 6 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total 1989 1,573,566,415 218,383,703 145,398,976 363,247 5,590,014 1,943,302,355 14,468,564 1,059 984,406

  6. Table 11.5b Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Electric Power Sector, 1989-2010 (Subset of Table 11.5a; Metric Tons of Gas)

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

    b Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Electric Power Sector, 1989-2010 (Subset of Table 11.5a; Metric Tons of Gas) Year Carbon Dioxide 1 Sulfur Dioxide Nitrogen Oxides Coal 2 Natural Gas 3 Petroleum 4 Geo- thermal 5 Non- Biomass Waste 6 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total 1989 1,520,229,870 169,653,294 133,545,718 363,247 4,365,768 1,828,157,897 13,815,263 832 809,873 6,874

  7. Table 11.5c Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Commercial and Industrial Sectors, 1989-2010 (Subset of Table 11.5a; Metric Tons of Gas)

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

    c Emissions From Energy Consumption for Electricity Generation and Useful Thermal Output: Commercial and Industrial Sectors, 1989-2010 (Subset of Table 11.5a; Metric Tons of Gas) Year Carbon Dioxide 1 Sulfur Dioxide Nitrogen Oxides Coal 2 Natural Gas 3 Petroleum 4 Geo- thermal 5 Non- Biomass Waste 6 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total Coal 2 Natural Gas 3 Petroleum 4 Other 7 Total Commercial Sector 8<//td> 1989 2,319,630 1,542,083 637,423 [ –] 803,754 5,302,890 37,398 4

  8. Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings

    SciTech Connect (OSTI)

    Garbesi, Karina; Vossos, Vagelis; Sanstad, Alan; Burch, Gabriel

    2011-10-13

    An increasing number of energy efficient appliances operate on direct current (DC) internally, offering the potential to use DC from renewable energy systems directly and avoiding the losses inherent in converting power to alternating current (AC) and back. This paper investigates that potential for net-metered residences with on-site photovoltaics (PV) by modeling the net power draw of the ‘direct-DC house’ with respect to today’s typical configuration, assuming identical DC-internal loads. Power draws were modeled for houses in 14 U.S. cities, using hourly, simulated PV-system output and residential loads. The latter were adjusted to reflect a 33% load reduction, representative of the most efficient DC-internal technology, based on an analysis of 32 electricity end-uses. The model tested the effect of climate, electric vehicle (EV) loads, electricity storage, and load shifting on electricity savings; a sensitivity analysis was conducted to determine how future changes in the efficiencies of power system components might affect savings potential. Based on this work, we estimate that net-metered PV residences could save 5% of their total electricity load for houses without storage and 14% for houses with storage. Based on residential PV penetration projections for year 2035 obtained from the National Energy Modeling System (2.7% for the reference case and 11.2% for the extended policy case), direct-DC could save the nation 10 trillion Btu (without storage) or 40 trillion Btu (with storage). Shifting the cooling load by two hours earlier in the day (pre-cooling) has negligible benefits for energy savings. Direct-DC provides no energy savings benefits for EV charging, to the extent that charging occurs at night. However, if charging occurred during the day, for example with employees charging while at work, the benefits would be large. Direct-DC energy savings are sensitive to power system and appliance conversion efficiencies but are not significantly influenced by climate. While direct-DC for residential applications will most likely arise as a spin-off of developments in the commercial sector—because of lower barriers to market entry and larger energy benefits resulting from the higher coincidence between load and insolation—this paper demonstrates that there are substantial benefits in the residential sector as well. Among residential applications, space cooling derives the largest energy savings from being delivered by a direct-DC system. It is the largest load for the average residence on a national basis and is particularly so in high-load regions. It is also the load with highest solar coincidence.

  9. Performance Study of K2CsSb Photocathode inside a DC High Voltage Gun

    SciTech Connect (OSTI)

    T. Rao, J. Smedley, J.M. Grames, R. Mammei, J.L. McCarter, M. Poelker, R. Suleiman

    2011-03-01

    In the past decade, there has been considerable interest in the generation of tens of mA average current in a photoinjector. Until recently, GaAs:Cs cathodes and K2CsSb cathodes have been tested successfully in DC and RF injectors respectively for this application. Our goal is to test the GaAs:Cs in RF injector and the K2CsSb cathode in the DC gun in order to widen our choices. Since the multialkali cathode is a compound with uniform stochiometry over its entire thickness, we anticipate that the life time issues seen in GaAs:Cs due surface damage by ion bombardment would be minimized with this material. Hence successful operation of the K2CsSb cathode in DC gun could lead to a relatively robust electron source capable of delivering ampere level currents. In order to test the performance of K2CsSb cathode in a DC gun, we have designed and built a load lock system that would allow the fabrication of the cathode at BNL and its testing at JLab. In this paper, we will present the design of the load-lock system, cathode fabrication, and the cathode performance in the preparation chamber and in the DC gun.

  10. Performance Study of K2CsSb Photocathode Inside a DC High Voltage Gun

    SciTech Connect (OSTI)

    McCarter J. L.; Rao T.; Smedley, J.; Grames, J.; Mammei, R.; Poelker, M.; Suleiman, R.

    2011-09-01

    In the past decade, there has been considerable interest in the generation of tens of mA average current in a photoinjector. Until recently, GaAs:Cs cathodes and K{sub 2}CsSb cathodes have been tested successfully in DC and RF injectors respectively for this application. Our goal is to test the K{sub 2}CsSb photocathode inside a DC gun. Since the multialkali cathode is a compound with constant characteristics over its entire thickness, we anticipate that the lifetime issues seen in GaAs:Cs due to surface damage by ion bombardment would be minimized. Hence successful operation of the K{sub 2}CsSb cathode in a DC gun could lead to a relatively robust electron source capable of delivering ampere level currents. In order to test the performance of a K{sub 2}CsSb cathode in a DC gun, we have designed and built a load lock system that allows the fabrication of the cathode at Brookhaven National Lab (BNL) and its testing at Jefferson Lab (JLab). In this paper, we will present the performance of the K{sub 2}CsSb photocathode in the preparation chamber and in the DC gun.

  11. One-dimensional hybrid simulation of the dc/RF combined driven capacitively coupled CF{sub 4} plasmas

    SciTech Connect (OSTI)

    Wang Shuai [School of Science, Northeastern University, Shenyang 110891 (China); Xu Xiang; Wang Younian [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2012-11-15

    We developed a one-dimensional hybrid model to simulate the dc/RF combined driven capacitively coupled plasma for CF{sub 4} discharges. The numerical results show the influence of the dc source on the plasma density distribution, ion energy distributions (IEDs), and ion angle distributions (IADs) on both RF and dc electrodes. The increase of dc voltage impels more ions with high energy to the electrode applied to the dc source, which makes the IEDs at the dc electrode shift toward higher energy and the peaks in IADs shift toward the small angle region. At the same time, it also decreases ion-energy at the RF electrode and enlarges the ion-angles which strike the RF electrode.

  12. The National Science Bowl Students are Here! (The Streets of D.C. Just Got a Little Smarter.)

    Broader source: Energy.gov [DOE]

    Hundreds of America’s best science high school and middle school students are arriving in D.C. today to gear up for the National Science Bowl.

  13. Secretary Moniz's Remarks at the Schlesinger Medal Ceremony and Energy Security Symposium in Washington D.C.-- As Delivered

    Broader source: Energy.gov [DOE]

    Secretary Moniz's remarks, as delivered, at the Schlesinger Medal Ceremony and Energy Security Symposium in Washington D.C. on October 1, 2014.

  14. Earth Day Park in Washington, D.C. to be Solar Powered

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

    Day Park in Washington, D.C. to be Solar Powered For more information contact: Mike Marsh, 275-4085 Golden, Colo., April 17, 1996 -- Lights powered with clean, renewable energy from the sun will illuminate Earth Day Park in Washington, D.C. just in time for the 26th annual celebration of Earth Day April 22, thanks to the U.S. Department of Energy and its National Renewable Energy Laboratory (NREL). The DOE project, which will be dedicated by Energy Secretary Hazel O'Leary on Earth Day, is a

  15. A room temperature electron cyclotron resonance ion source for the DC-110 cyclotron

    SciTech Connect (OSTI)

    Efremov, A. Bogomolov, S.; Lebedev, A.; Loginov, V.; Yazvitsky, N.

    2014-02-15

    The project of the DC-110 cyclotron facility to provide applied research in the nanotechnologies (track pore membranes, surface modification of materials, etc.) has been designed by the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research (Dubna). The facility includes the isochronous cyclotron DC-110 for accelerating the intensive Ar, Kr, Xe ion beams with 2.5 MeV/nucleon fixed energy. The cyclotron is equipped with system of axial injection and ECR ion source DECRIS-5, operating at the frequency of 18 GHz. This article reviews the design and construction of DECRIS-5 ion source along with some initial commissioning results.

  16. Persons Who Received the DC PSC's Emergency Petition and Complaint via

    Energy Savers [EERE]

    E-mail on August 24, 2005 | Department of Energy Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on August 24, 2005 Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on August 24, 2005 Docket No. EO-05-01: In response to your August 29, 2005 letter, attached please find a list of all entities and organizations to whom we served the District of Columbia Public Service Commission's (HOC PSC") Petition and Complaint filed on August

  17. Secretary Moniz's Keynote Address at the ARPA-E Summit in Washington D.C.

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

    -- As Delivered | Department of Energy Keynote Address at the ARPA-E Summit in Washington D.C. -- As Delivered Secretary Moniz's Keynote Address at the ARPA-E Summit in Washington D.C. -- As Delivered February 26, 2014 - 5:18pm Addthis Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy Well, thank you, Dan (Poneman). As Dan indicated, we go back a ways and if you look at Secretaries and Deputy Secretaries and Acting Secretaries of the Department of Energy, I'm pretty sure that Dan is the

  18. Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on Energy

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

    Security 40 Years after the Embargo - As Delivered | Department of Energy CSIS in Washington D.C. on Energy Security 40 Years after the Embargo - As Delivered Energy Secretary Moniz's Remarks at CSIS in Washington D.C. on Energy Security 40 Years after the Embargo - As Delivered October 24, 2013 - 11:27am Addthis Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy Well, thank you, John. I was actually planning to make a long presentation, but I will, in real time, convert it to a short

  19. IMPLEMENTATION OF A DC BUMP AT THE STORAGE RING INJECTION STRAIGHT SECTION

    SciTech Connect (OSTI)

    Wang, G.M.; Shaftan, T.; Kramer, S.K.; Fliller, R.; Guo, W.; Heese, R.; Yu, L.H.; Parker, B.; Willeke, F.J.

    2011-03-28

    The NSLS II beam injection works with a DC septum, a pulsed septum and four fast kicker magnets. The kicker power supplies each produce a two revolution period pulsed field, 5.2 {micro}s half sine waveform, using {approx}5kA drive voltage. The corresponding close orbit bump amplitude is {approx}15mm. It is desired that the bump is transparent to the users for top-off injection. However, high voltage and short pulse power supplies have challenges to maintain pulse-to-pulse stability and magnet-to-magnet reproducibility. To minimize these issues, we propose implementing a DC local bump on top of the fast bump to reduce the fast kicker strength by a factor of 2/3. This bump uses two storage ring corrector magnets plus one additional magnet at the septum to create a local bump. Additionally, these magnets could provide a DC bump to simulate the septum position effects on the store beam lifetime. This paper presents the detail design of this DC injection bump and related beam dynamics.

  20. Use of Facility Contractor Employees for Services to DOE in the Washington, D.C., Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-07-12

    To clarify and modify policies and procedures for management of Department of Energy (DOE), including National Nuclear Security Administration (NNSA), facility contractor employees located in the Washington, D.C., area. Cancels DOE N 350.5. Certified 12-28-06. Canceled by DOE O 350.2A.

  1. Operation of the DC current transformer intensity monitors at FNAL during run II

    SciTech Connect (OSTI)

    Crisp, J.; Fellenz, B.; Heikkinen, D.; Ibrahim, M.A.; Meyer, T.; Vogel, G.; /Fermilab

    2012-01-01

    Circulating beam intensity measurements at FNAL are provided by five DC current transformers (DCCT), one per machine. With the exception of the DCCT in the Recycler, all DCCT systems were designed and built at FNAL. This paper presents an overview of both DCCT systems, including the sensor, the electronics, and the front-end instrumentation software, as well as their performance during Run II.

  2. Optical Investigations of Dust Particles Distribution in RF and DC Discharges

    SciTech Connect (OSTI)

    Ramazanov, T. S.; Dosbolayev, M. K.; Jumabekov, A. N.; Amangaliyeva, R. Zh.; Filatova, I. I.; Azharonok, V. V.

    2008-09-07

    Optical emission spectroscopy is used to study dust particles movement and conditions of a formation of ordered plasma-dust structures in a capacitively coupled RF discharge. 3D binocular diagnostics of plasma-dust structures in dc discharge was made.

  3. Ions in solution: Density corrected density functional theory (DC-DFT)

    SciTech Connect (OSTI)

    Kim, Min-Cheol; Sim, Eunji; Burke, Kieron

    2014-05-14

    Standard density functional approximations often give questionable results for odd-electron radical complexes, with the error typically attributed to self-interaction. In density corrected density functional theory (DC-DFT), certain classes of density functional theory calculations are significantly improved by using densities more accurate than the self-consistent densities. We discuss how to identify such cases, and how DC-DFT applies more generally. To illustrate, we calculate potential energy surfaces of HO·Cl{sup −} and HO·H{sub 2}O complexes using various common approximate functionals, with and without this density correction. Commonly used approximations yield wrongly shaped surfaces and/or incorrect minima when calculated self consistently, while yielding almost identical shapes and minima when density corrected. This improvement is retained even in the presence of implicit solvent.

  4. Demonstration of cathode emittance dominated high bunch charge beams in a DC gun-based photoinjector

    SciTech Connect (OSTI)

    Gulliford, Colwyn Bartnik, Adam Bazarov, Ivan; Dunham, Bruce; Cultrera, Luca

    2015-03-02

    We present the results of transverse emittance and longitudinal current profile measurements of high bunch charge (≄100 pC) beams produced in the DC gun-based Cornell energy recovery linac photoinjector. In particular, we show that the cathode thermal and core beam emittances dominate the final 95% and core emittances measured at 9–9.5 MeV. Additionally, we demonstrate excellent agreement between optimized 3D space charge simulations and measurement, and show that the quality of the transverse laser distribution limits the optimal simulated and measured emittances. These results, previously thought achievable only with RF guns, demonstrate that DC gun based photoinjectors are capable of delivering beams with sufficient single bunch charge and beam quality suitable for many current and next generation accelerator projects such as Energy Recovery Linacs and Free Electron Lasers.

  5. If you reside in WASHINGTON, DC - MD -VA- WV your salary will range from:

    National Nuclear Security Administration (NNSA)

    If you are employed in the WASHINGTON, DC Metropolitan Area (D.C., Baltimore, Northern VA, Eastern WV, and Southern PA) your salary will range from: Pay Band Pay Plan(s) Minimum Maximum Developmental EN $49,246 $74,872 01 EK/EJ $34,075 $58,511 02 EK/EJ $51,630 $84,855 03 EK/EJ/EN $74,872 $119,238 04 EK/EJ/EN $105,211 $165,300 05 EK/EJ/EN $148,510 $165,300 If you are employed in OAKLAND/LIVERMORE, CA your salary will range from: Pay Band Pay Plan(s) Minimum Maximum Developmental EN $53,579

  6. Photon assisted processes: Probability amplitudes for the absorption and emission of photons and dc-photocurrents

    SciTech Connect (OSTI)

    Micu, C.; Racolta, D.; Papp, E.

    2014-11-24

    In this paper one deals with the derivation of probability amplitudes characterizing the photon assisted injection of electrons in a two-terminal quantum conductor. For this purpose one accounts for spatially constant but time dependent periodic voltages applied on an Ohmic contact. Resorting to the discrete Fourier transform provides the probability amplitudes for the emission and absorption of photons in terms of squared Bessel functions of the first kind and integer order. Several kinds of ac-pulses like sinusoidal and dc+sinusoidal are assumed. Mean square values concerning photon numbers have been discussed in some more detail. Time averages of squared time dependent classical currents and leading corrections to the rescaled dc-photocurrent have also been accounted for.

  7. Switch contact device for interrupting high current, high voltage, AC and DC circuits

    DOE Patents [OSTI]

    Via, Lester C.; Witherspoon, F. Douglas; Ryan, John M.

    2005-01-04

    A high voltage switch contact structure capable of interrupting high voltage, high current AC and DC circuits. The contact structure confines the arc created when contacts open to the thin area between two insulating surfaces in intimate contact. This forces the arc into the shape of a thin sheet which loses heat energy far more rapidly than an arc column having a circular cross-section. These high heat losses require a dramatic increase in the voltage required to maintain the arc, thus extinguishing it when the required voltage exceeds the available voltage. The arc extinguishing process with this invention is not dependent on the occurrence of a current zero crossing and, consequently, is capable of rapidly interrupting both AC and DC circuits. The contact structure achieves its high performance without the use of sulfur hexafluoride.

  8. Method of measuring the dc electric field and other tokamak parameters

    DOE Patents [OSTI]

    Fisch, Nathaniel J.; Kirtz, Arnold H.

    1992-01-01

    A method including externally imposing an impulsive momentum-space flux to perturb hot tokamak electrons thereby producing a transient synchrotron radiation signal, in frequency-time space, and the inference, using very fast algorithms, of plasma parameters including the effective ion charge state Z.sub.eff, the direction of the magnetic field, and the position and width in velocity space of the impulsive momentum-space flux, and, in particular, the dc toroidal electric field.

  9. PPPL engineers design and build state-of-the-art controller for AC to DC

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

    converter that manages plasma in upgraded fusion machine | Princeton Plasma Physics Lab PPPL engineers design and build state-of-the-art controller for AC to DC converter that manages plasma in upgraded fusion machine By Raphael Rosen March 7, 2016 Tweet Widget Google Plus One Share on Facebook PPPL scientists Robert Mozulay and Weiguo Que (Photo by Hans Schneider) PPPL scientists Robert Mozulay and Weiguo Que Gallery: A digital firing generator installed in NSTX-U (Photo by Hans Schneider)

  10. VUV generation by adiabatically expanded and excited by a DC electrical discharge Argon gas

    SciTech Connect (OSTI)

    Pipergias, K.; Yasemidis, D.; Reppa, E.; Pentaris, D.; Efthimiopoulos, T.; Merlemis, N.; Giannetas, V.

    2010-11-10

    We investigate the emission of Argon (Ar) gas which is adiabatically expanded through a nozzle and excited using a DC electrical discharge. Because of the expansion and the electronic excitation, Ar dimers and clusters are formed, which give radiation in the second (2nd) and in the third (3rd) continua of Ar, centered at about 126 and 254 nm respectively. We particularly focus our study on the 2nd continuum, in order to develop a laser at this wavelength.

  11. Method and apparatus for generating radiation utilizing DC to AC conversion with a conductive front

    DOE Patents [OSTI]

    Dawson, John M.; Mori, Warren B.; Lai, Chih-Hsiang; Katsouleas, Thomas C.

    1998-01-01

    Method and apparatus for generating radiation of high power, variable duration and broad tunability over several orders of magnitude from a laser-ionized gas-filled capacitor array. The method and apparatus convert a DC electric field pattern into a coherent electromagnetic wave train when a relativistic ionization front passes between the capacitor plates. The frequency and duration of the radiation is controlled by the gas pressure and capacitor spacing.

  12. Method and apparatus for generating radiation utilizing DC to AC conversion with a conductive front

    DOE Patents [OSTI]

    Dawson, J.M.; Mori, W.B.; Lai, C.H.; Katsouleas, T.C.

    1998-07-14

    Method and apparatus ar disclosed for generating radiation of high power, variable duration and broad tunability over several orders of magnitude from a laser-ionized gas-filled capacitor array. The method and apparatus convert a DC electric field pattern into a coherent electromagnetic wave train when a relativistic ionization front passes between the capacitor plates. The frequency and duration of the radiation is controlled by the gas pressure and capacitor spacing. 4 figs.

  13. Ultraviolet and electron irradiation of DC-704 siloxane oil in zinc orthotitanate paint

    SciTech Connect (OSTI)

    Mossman, D.L.; Barsh, M.K.; Greenberg, S.A.

    1982-01-01

    Discrepancies exist between accelerated laboratory simulation and geosynchronous orbit flight data for zinc orthotitanate (ZOT) paint degradation. The effects of ultraviolet and electron irradiation on ZOT contaminated with DC-704 silicone oil are reported. In-situ solar absorptance and emittance changes for contaminated and clean specimens are discussed with reference to post-test surface morphology, determined by scanning electron microscope analysis. Features of the contaminated ZOT degradation kinetics correlate with orbital performance.

  14. DOE/EIA-0202(86/3Q) Energy Information Administration Washington, DC

    Gasoline and Diesel Fuel Update (EIA)

    3Q) Energy Information Administration Washington, DC Energy Outlook Quarterly Projections July 1986 t rt ort .ort lort lort nort iort lort \ort ort Tt "t- . m .erm Term Term Term Term Term Term Term Term Term Term Term Term Term Term Term xrm uergy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Energy Enbrgy ^nergy -OJ.VJUK Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook Outlook

  15. A Presentation for the DOE EIA 2013 Energy Conference, Washington, DC

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

    global leader in natural gas engines. Powering transportation. Driving change. The Future of Natural Gas as a Transportation Fuel A Presentation for the DOE EIA 2013 Energy Conference, Washington, DC Dr. Michael Gallagher June 17, 2013 Secretary's Request Examine ways to accelerate future transportation fuels prospects through 2050 Address four critical areas: fuel demand, supply, infrastructure and technology Answer this key question: How can governments stimulate the technological advances and

  16. Construction, Qualification, and Low Rate Production Start-up of a DC Bus

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

    Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles | Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon arravt029_ape_sawyer_2012_p.pdf More Documents & Publications Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles

  17. Construction, Qualification, and Low Rate Production Start-up of a DC Bus

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

    Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon arravt029_ape_sawyer_2011_p.pdf More Documents & Publications Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles

  18. D.C. Community Comes Together in the Name of Sustainability, Affordability

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

    | Department of Energy Community leaders and members of the The New School for Design and Stevens Institute of Technology Solar Decathlon team.| Courtesy of Lisa Bleich Community leaders and members of the The New School for Design and Stevens Institute of Technology Solar Decathlon team.| Courtesy of Lisa Bleich Erin R. Pierce Erin R. Pierce Former Digital Communications Specialist, Office of Public Affairs What are the key facts? This 2011 Solar Decathlon team is partnering with D.C.

  19. Washington, DC'

    Office of Legacy Management (LM)

    If you have any questionsplease feel free to.call me at 3dli427-1721 or Dr. W. Alexander Williams (301-427-17.19) of my staff...; : , Enclosures 'Off-SiteSavannah RiverDivision ...

  20. Residential Energy Efficiency Research Planning Meeting Summary Report: Washington, D.C. - October 27-28, 2011

    SciTech Connect (OSTI)

    Not Available

    2012-02-01

    This report summarizes key findings and outcomes from the U.S. Department of Energy's Building America Residential Energy Efficiency Research Planning meeting, held on October 28-29, 2011, in Washington, D.C.

  1. Vehicle Technologies Office Merit Review 2014: DC Fast Charging Effects on Battery Life and EVSE Efficiency and Security Testing

    Broader source: Energy.gov [DOE]

    Presentation given by Idaho National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about DC fast charging...

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

    Open Energy Info (EERE)

    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...

  3. Data:7a23ab07-5468-48dc-947a-679327ca61e0 | Open Energy Information

    Open Energy Info (EERE)

    dc-947a-679327ca61e0 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...

  4. Comparative Study of DC and AC Microgrids in Commercial Buildings Across Different Climates and Operating Profiles: Preprint

    SciTech Connect (OSTI)

    Fregosi, D.; Ravula, S.; Brhlik, D.; Saussele, J.; Frank, S.; Bonnema, E.; Scheib, J.; Wilson, E.

    2015-04-22

    Bosch has developed and demonstrated a novel DC microgrid system designed to maximize utilization efficiency for locally generated photovoltaic energy while offering high reliability, safety, redundancy, and reduced cost compared to equivalent AC systems. Several demonstration projects validating the system feasibility and expected efficiency gains have been completed and additional ones are in progress. This work gives an overview of the Bosch DC microgrid system and presents key results from a large simulation study done to estimate the energy savings of the Bosch DC microgrid over conventional AC systems. The study examined the system performance in locations across the United States for several commercial building types and operating profiles and found that the Bosch DC microgrid uses generated PV energy 6%–8% more efficiently than traditional AC systems.

  5. Pulsed DC magnetron sputtered piezoelectric thin film aluminum nitride – Technology and piezoelectric properties

    SciTech Connect (OSTI)

    Stoeckel, C. Kaufmann, C.; Hahn, R.; Schulze, R.; Billep, D.; Gessner, T.

    2014-07-21

    Pulsed DC magnetron sputtered aluminum nitride (AlN) thin films are prepared on several seed layers and at different sputtering conditions. The piezoelectric c-axis (002) orientation of the AlN is analyzed with X-ray diffraction method. The transverse piezoelectric coefficient d{sub 31} is determined with a Laser-Doppler-Vibrometer at cantilevers and membranes by analytical calculations and finite element method. Additionally, thin film AlN on bulk silicon is used to characterize the longitudinal piezoelectric charge coefficient d{sub 33}.

  6. PPPL engineers design and build state-of-the-art controller for AC to DC

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

    converter that manages plasma in upgraded fusion machine | Princeton Plasma Physics Lab PPPL engineers design and build state-of-the-art controller for AC to DC converter that manages plasma in upgraded fusion machine By Raphael Rosen March 7, 2016 Tweet Widget Google Plus One Share on Facebook PPPL scientists Robert Mozulay and Weiguo Que (Photo by Hans Schneider) PPPL scientists Robert Mozulay and Weiguo Que Gallery: One of the digital firing generators installed in NSTX-U (Photo by Hans

  7. Use of Facility Contractor Employees for Services to DOE in the Washington, D.C., Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1999-04-15

    To clarify and modify policies and procedures for management of Department of Energy (DOE) facility contractor employees located in the Washington, D.C., area. A facility contractor employee is any employee of either a contractor responsible for managing a Department-owned facility, such as a National Laboratory, or a subcontractor of such a contractor. Facility contractor means any contractor performing under a Management and Operating (M&O), Management and Integration (M&I), or Environmental Restoration Management Contractor (ERMC) contract awarded by a DOE contracting officer. Canceled by DOE O 350.2.

  8. DOEINVIl0845-51 DC-703 GROUNDWATER FLOW NEAR THE SHOAL SITE,

    Office of Legacy Management (LM)

    DOEINVIl0845-51 DC-703 GROUNDWATER FLOW NEAR THE SHOAL SITE, SAND SPRINGS RANGE, NEVADA: IMPACT OF DENSITY-DRIVEN FLOW Prepared by Jenny Chapman, Todd Mihevc, and Alan McKay Submitted to Nevada Operations Office U.S. Department of Energy Las Vegas, Nevada September 1994 Publication #45130 This report was prepared as an account of work sponsored by the United States Government Neither the United States nor the United States Department of Energy, nor any of their employees, makes any warranty,

  9. DC superconducting quantum interference device usable in nuclear quadrupole resonance and zero field nuclear magnetic spectrometers

    DOE Patents [OSTI]

    Fan, Non Q.; Clarke, John

    1993-01-01

    A spectrometer for measuring the nuclear quadrupole resonance spectra or the zero-field nuclear magnetic resonance spectra generated by a sample is disclosed. The spectrometer uses an amplifier having a dc SQUID operating in a flux-locked loop for generating an amplified output as a function of the intensity of the signal generated by the sample. The flux-locked loop circuit includes an integrator. The amplifier also includes means for preventing the integrator from being driven into saturation. As a result, the time for the flux-locked loop to recover from the excitation pulses generated by the spectrometer is reduced.

  10. DC superconducting quantum interference device usable in nuclear quadrupole resonance and zero field nuclear magnetic spectrometers

    DOE Patents [OSTI]

    Fan, N.Q.; Clarke, J.

    1993-10-19

    A spectrometer for measuring the nuclear quadrupole resonance spectra or the zero-field nuclear magnetic resonance spectra generated by a sample is disclosed. The spectrometer uses an amplifier having a dc SQUID operating in a flux-locked loop for generating an amplified output as a function of the intensity of the signal generated by the sample. The flux-locked loop circuit includes an integrator. The amplifier also includes means for preventing the integrator from being driven into saturation. As a result, the time for the flux-locked loop to recover from the excitation pulses generated by the spectrometer is reduced. 7 figures.

  11. Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC

    SciTech Connect (OSTI)

    Miller, Naomi J.; Rosenfeld, Scott M.

    2012-06-22

    This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.

  12. DOE/EIA-0202(86/1Q) Energy Information Administration Washington, DC

    Gasoline and Diesel Fuel Update (EIA)

    6/1Q) Energy Information Administration Washington, DC Energy Outlook Quarterly Projections January 1986 Outlook Short-Term _ uergy Outlook Short-Term Ent,. , Energy Outlook Short-Term Energ^ .m Energy Outlook Short-Term Energy L .erm Energy Outlook Short-Term Energy Ou Term Energy Outlook Short-Term Energy Out, t-Term Energy Outlook Short-Term Energy Outlc rt-Term Energy Outlook Short-Term Energy Outloc 3rt-Term Energy Outlook Short-Term Energy Outlocx .ort-Term Energy Outlook Short-Term Energy

  13. DOE/EIA-0202(86/2Q) Energy Information Administration Washington, DC

    Gasoline and Diesel Fuel Update (EIA)

    2Q) Energy Information Administration Washington, DC Energy Outlook Quarterly Projections April 1986 Outlook Short-Term _ Outlook Short-Term Exit,. . Energy Outlook Short-Term Energ^ .-m Energy Outlook Short-Term Energy L .erm Energy Outlook Short-Term Energy Ou Term Energy Outlook Short-Term Energy OuU t-Term Energy Outlook Short-Term Energy Outlc rt-Term Energy Outlook Short-Term Energy Outloc jrt-Term Energy Outlook Short-Term Energy Outlocx .ort-Term Energy Outlook Short-Term Energy Outlook.

  14. 1000 Independence Avenue, SW, Washington, D.C., Carol G. Crawford, Chair,

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

    FRIDAY, OCTOBER 25, 2002 The meeting was held at 8:30 in Room 8E-089 of the Department of Energy, 1000 Independence Avenue, SW, Washington, D.C., Carol G. Crawford, Chair, presiding. PRESENT: CAROL G. CRAWFORD, Ph.D. Chair F. JAY BREIDT, Ph.D. Vice Chair MARK BERNSTEIN, Ph.D. JOHNNY BLAIR JAE EDMONDS, Ph.D. JAMES K. HAMMITT, Ph.D. NICHOLAS W. HENGARTNER CALVIN A. KENT, Ph.D. WILLIAM G. MOSS, Ph.D. POLLY A. PHIPPS, Ph.D. RANDY R. SITTER, Ph.D. ROY WHITMORE, Ph.D. ALSO PRESENT: CALVIN A. KENT,

  15. Performance Evaluation of a 4.5 kW (1.3 Refrigeration Tons) Air-Cooled Lithium Bromide/Water Solar Powered (Hot-Water-Fired) Absorption Unit

    SciTech Connect (OSTI)

    Zaltash, Abdolreza; Petrov, Andrei Y; Linkous, Randall Lee; Vineyard, Edward Allan

    2007-01-01

    During the summer months, air-conditioning (cooling) is the single largest use of electricity in both residential and commercial buildings with the major impact on peak electric demand. Improved air-conditioning technology has by far the greatest potential impact on the electric industry compared to any other technology that uses electricity. Thermally activated absorption air-conditioning (absorption chillers) can provide overall peak load reduction and electric grid relief for summer peak demand. This innovative absorption technology is based on integrated rotating heat exchangers to enhance heat and mass transfer resulting in a potential reduction of size, cost, and weight of the "next generation" absorption units. Rotartica Absorption Chiller (RAC) is a 4.5 kW (1.3 refrigeration tons or RT) air-cooled lithium bromide (LiBr)/water unit powered by hot water generated using the solar energy and/or waste heat. Typically LiBr/water absorption chillers are water-cooled units which use a cooling tower to reject heat. Cooling towers require a large amount of space, increase start-up and maintenance costs. However, RAC is an air-cooled absorption chiller (no cooling tower). The purpose of this evaluation is to verify RAC performance by comparing the Coefficient of Performance (COP or ratio of cooling capacity to energy input) and the cooling capacity results with those of the manufacturer. The performance of the RAC was tested at Oak Ridge National Laboratory (ORNL) in a controlled environment at various hot and chilled water flow rates, air handler flow rates, and ambient temperatures. Temperature probes, mass flow meters, rotational speed measuring device, pressure transducers, and a web camera mounted inside the unit were used to monitor the RAC via a web control-based data acquisition system using Automated Logic Controller (ALC). Results showed a COP and cooling capacity of approximately 0.58 and 3.7 kW respectively at 35 C (95 F) design condition for ambient temperature with 40 C (104 F) cooling water temperature. This is in close agreement with the manufacturer data of 0.60 for COP and 3.9 kW for cooling capacity. This study resulted in a complete performance map of RAC which will be used to evaluate the potential benefits of rotating heat exchangers in making the "next-generation" absorption chillers more compact and cost effective without any significant degradation in the performance. In addition, the feasibility of using rotating heat exchangers in other applications will be evaluated.

  16. INFORMATION: Audit Report on The Office of Secure Transportation DC-9 Aircraft Refurbishment

    SciTech Connect (OSTI)

    2009-05-01

    The National Nuclear Security Administration's (NNSA) Office of Secure Transportation (OST) maintains a fleet of seven aircraft to transport sensitive items, equipment and security personnel. Based on increasing requirements for transporting components and security personnel, OST decided to add a heavy transport aircraft to meet the Department's weapons surety and emergency response missions. In 2004, as a replacement following the sale of a portion of its fleet, OST acquired a DC-9 cargo aircraft that had been excessed by the U.S. military. Prior to integrating the DC-9 into its fleet, NNSA ordered a refurbishment of the aircraft. This refurbishment project was to permit the aircraft to be certified to civil air standards so that it could transport passengers for site visits, training and other travel. The NNSA Service Center (Service Center) awarded a contract for the refurbishment of the aircraft in December 2004. In recent years, the Office of Inspector General has addressed a number of issues relating to the Department's aircraft management activities and services. As part of our ongoing review process and because of the national security importance of its fleet of aircraft, we conducted this review to determine whether OST had an effective and efficient aviation management program.

  17. Simulation Study of an Extended Density DC Glow Toroidal Plasma Source

    SciTech Connect (OSTI)

    Granda-Gutierrez, E. E.; Piedad-Beneitez, A. de la; Lopez-Callejas, R.; Godoy-Cabrera, O. G.; Benitez-Read, J. S.; Pacheco-Sotelo, J. O.; Pena-Eguiluz, R.; Mercado-Cabrera, A.; Valencia A, R.; Barocio, S. R.

    2006-12-04

    Conventional wisdom assigns the DC glow discharge regime to plasma currents below {approx}500 mA values, beyond which the discharge falls into the anomalous glow and the turbulent arc regimes. However, we have found evidence that, during toroidal discharges, this barrier can be ostensibly extended up to 800 mA. Thus, a computer simulation has been applied to the evolution of the main electrical characteristics of such a glow discharge plasma in a toroidal vessel in order to design and construct a respective voltage/current controlled source. This should be able to generate a DC plasma in the glow regime with which currents in the range 10-3-100 A can be experimented and 109-1010 cm-3 plasma densities can be achieved to PIII optimization purposes. The plasma is modelled as a voltage-controlled current source able to be turned on whenever the breakdown voltage is reached across the gap between the anode and the vessel wall. The simulation outcome fits well our experimental measurements showing that the plasma current obeys power laws that are dependent on the power current and other control variables such as the gas pressure.

  18. Simulations for preliminary design of a multi-cathode DC electron gun for eRHIC

    SciTech Connect (OSTI)

    Wu, Q.; Ben-Zvi, I.; Chang, X.; Skaritka, J.

    2010-05-23

    The proposed electron ion collider, eRHIC, requires a large average polarized electron current of 50 mA, which is more than 20 times higher than the present experimental output of a single, highly polarized electron source, based on cesiated super-lattice GaAs. To meet eRHIC's requirement for current, we designed a multicathode DC electron gun for injection. The twenty-four GaAs cathodes emit electrons in sequence, then are combined on axis by a rotating field (or 'funnelled'). In addition to its ultra-high vacuum requirements, the multicathode DC electron gun will place high demand on the electric field symmetry, the magnetic field shielding, and on preventing arcing. In this paper, we discuss our results from a 3D simulation of the latest model for this gun. The findings will guide the actual design in future. Their preliminary design of a multi-cathode electron source for eRHIC demonstrated tolerable fields and reasonable results in both field and particle simulations.

  19. Frequency multiplexed flux locked loop architecture providing an array of DC SQUIDS having both shared and unshared components

    DOE Patents [OSTI]

    Ganther, Jr., Kenneth R.; Snapp, Lowell D.

    2002-01-01

    Architecture for frequency multiplexing multiple flux locked loops in a system comprising an array of DC SQUID sensors. The architecture involves dividing the traditional flux locked loop into multiple unshared components and a single shared component which, in operation, form a complete flux locked loop relative to each DC SQUID sensor. Each unshared flux locked loop component operates on a different flux modulation frequency. The architecture of the present invention allows a reduction from 2N to N+1 in the number of connections between the cryogenic DC SQUID sensors and their associated room temperature flux locked loops. Furthermore, the 1.times.N architecture of the present invention can be paralleled to form an M.times.N array architecture without increasing the required number of flux modulation frequencies.

  20. Construction, Qualification, and Low Rate Production Start‐up of a DC Bus Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  1. Influence of a transverse magnetic field on arc root movements in a dc plasma torch: Diamagnetic effect of arc column

    SciTech Connect (OSTI)

    Kim, Keun Su

    2009-03-23

    The effect of a transverse magnetic field on the anodic arc root movement inside a dc plasma torch has been investigated. The arc voltage fluctuation, which represents the degree of the arc instability, was reduced to 28.6% of the original value and the high frequency components in the voltage signal also decreased in their magnitudes. The inherent arc instability in a dc thermal plasma torch seems to be suppressed by a diamagnetic effect of the arc column. Furthermore, the measured voltage wave forms indicated that the arc root attachment mode would be controllable by a transverse magnetic field.

  2. Dynamics of CN+alkane reactions by crossed-beam dc slice imaging

    SciTech Connect (OSTI)

    Huang Cunshun; Li Wen; Estillore, Armando D.; Suits, Arthur G.

    2008-08-21

    The hydrogen atom abstraction reactions of CN (X {sup 2}{sigma}{sup +}) with alkanes have been studied using the crossed molecular beam technique with dc slice ion imaging at collision energies of 7.5 and 10.8 kcal/mol. The product alkyl radical images were obtained via single photon ionization at 157 nm for the reactions of CN (X {sup 2}{sigma}{sup +}) with n-butane, n-pentane, n-hexane, and cyclohexane. From analysis of the images, we obtained the center-of-mass frame product angular distributions and translational energy distributions directly. The results indicate that the products are largely backscattered and that most of the available energy ({approx}80%-85%) goes to the internal energy of the products. The reaction dynamics is discussed in light of recent kinetics data, theoretical calculations, and results for related halogen and oxygen atom reactions.

  3. Term Assignments of Contractors to the Washington D.C. Area.

    Broader source: Energy.gov [DOE]

    On July 2, 2013 the DOE Office of the Inspector General issued Audit Report Number 0890 entitled, "Follow-up Audit on Term Assignments of Contractor Employees." The audit was conducted as a follow-up of the FY 2005 audit of "Management of Facility Contractors Assigned to the Washington D.C. area DOE/IG 0710." The earlier report found instances where assignment justifications were insufficient, costs appeared excessive and allowances inconsistent. The follow-up audit recognized improved management of assignments but noted assignment justifications and cost management could be improved. The report recommended DOE determine prior year actual costs to assist in calculating the estimated costs for the upcoming year of multi-year assignments and ensure assignment records in the Departmental Management and Tracking System (DMATS) are accurate.

  4. Studies on optoelectronic properties of DC reactive magnetron sputtered chromium doped CdO thin films

    SciTech Connect (OSTI)

    Hymavathi, B. Rao, T. Subba; Kumar, B. Rajesh

    2014-10-15

    Cr doped CdO thin films were deposited on glass substrates by DC reactive magnetron sputtering method and subsequently annealed from 200 °C to 500 °C. X-ray diffraction analysis showed that the films exhibit (1 1 1) preferred orientation. The optical transmittance of the films increases from 64% to 88% with increasing annealing temperature. The optical band gap values were found to be decreased from 2.77 to 2.65 eV with the increase of annealing temperature. The decrease in optical band gap energy with increasing annealing temperature can be attributed to improvement in the crystallinity of the films and may also be due to quantum confinement effect. A minimum resistivity of 2.23 × 10{sup −4} Ω.cm and sheet resistance of 6.3 Ω/sq is obtained for Cr doped CdO film annealed at 500 °C.

  5. Control method for peak power delivery with limited DC-bus voltage

    DOE Patents [OSTI]

    Edwards, John; Xu, Longya; Bhargava, Brij B.

    2006-09-05

    A method for driving a neutral point-clamped multi-level voltage source inverter supplying a synchronous motor is provided. A DC current is received at a neutral point-clamped multi-level voltage source inverter. The inverter has first, second, and third output nodes. The inverter also has a plurality of switches. A desired speed of a synchronous motor connected to the inverter by the first second and third nodes is received by the inverter. The synchronous motor has a rotor and the speed of the motor is defined by the rotational rate of the rotor. A position of the rotor is sensed, current flowing to the motor out of at least two of the first, second, and third output nodes is sensed, and predetermined switches are automatically activated by the inverter responsive to the sensed rotor position, the sensed current, and the desired speed.

  6. Impute DC link (IDCL) cell based power converters and control thereof

    DOE Patents [OSTI]

    Divan, Deepakraj M.; Prasai, Anish; Hernendez, Jorge; Moghe, Rohit; Iyer, Amrit; Kandula, Rajendra Prasad

    2016-04-26

    Power flow controllers based on Imputed DC Link (IDCL) cells are provided. The IDCL cell is a self-contained power electronic building block (PEBB). The IDCL cell may be stacked in series and parallel to achieve power flow control at higher voltage and current levels. Each IDCL cell may comprise a gate drive, a voltage sharing module, and a thermal management component in order to facilitate easy integration of the cell into a variety of applications. By providing direct AC conversion, the IDCL cell based AC/AC converters reduce device count, eliminate the use of electrolytic capacitors that have life and reliability issues, and improve system efficiency compared with similarly rated back-to-back inverter system.

  7. Crossed-beam DC slice imaging of fluorine atom reactions with linear alkanes

    SciTech Connect (OSTI)

    Shi, Yuanyuan; Kamasah, Alexander; Joalland, Baptiste; Suits, Arthur G.

    2015-05-14

    We report the reaction dynamics of F atom with selected alkanes studied by crossed beam scattering with DC slice ion imaging. The target alkanes are propane, n-butane, and n-pentane. The product alkyl radicals are probed by 157 nm single photon ionization following reaction at a collision energy of ∌10 kcal mol{sup −1}. The analyzed data are compared with the corresponding theoretical studies. Reduced translational energy distributions for each system show similar trends with little of the reaction exoergicity appearing in translation. However, the pentane reaction shows a somewhat smaller fraction of available energy in translation than the other two, suggesting greater energy channeled into pentyl internal degrees of freedom. The center-of-mass angular distributions all show backscattering as well as sharp forward scattering that decreases in relative intensity with the size of the molecule. Possible reasons for these trends are discussed.

  8. Current-voltage characteristics of dc corona discharges in air between coaxial cylinders

    SciTech Connect (OSTI)

    Zheng, Yuesheng; Zhang, Bo He, Jinliang

    2015-02-15

    This paper presents the experimental measurement and numerical analysis of the current-voltage characteristics of dc corona discharges in air between coaxial cylinders. The current-voltage characteristics for both positive and negative corona discharges were measured within a specially designed corona cage. Then the measured results were fitted by different empirical formulae and analyzed by the fluid model. The current-voltage characteristics between coaxial cylinders can be expressed as I = C(U − U{sub 0}){sup m}, where m is within the range 1.5–2.0, which is similar to the point-plane electrode system. The ionization region has no significant effect on the current-voltage characteristic under a low corona current, while it will affect the distribution for the negative corona under a high corona current. The surface onset fields and ion mobilities were emphatically discussed.

  9. Analysis of Fe Nanoparticles Using XPS Measurements Under D.C. or Pulsed-Voltage Bias

    SciTech Connect (OSTI)

    Suzer, Sefik; Baer, Donald R.; Engelhard, Mark H.

    2010-06-16

    The impact of solution exposure on the charging properties of oxide coatings on Fe metal-core oxide-shells has been examined by sample biasing during XPS measurements. The Fe nanoparticles were suspended in relatively unreactive acetone and were analyzed after particle containing solutions were deposited on SiO2/Si substrates, and/or Au substrates. The particle and substrate combinations were subjected to ± 10V d.c. biasing in the form of square waves (SQW) pulses with 5V amplitude. The samples experienced variable degrees of charging for which low energy electrons at ~1 eV, 20?A and low energy Ar+ ions were used to minimize. Application of d.c. bias and/or square wave pulses drastically influences the extent of charging, which is utilized to gather additional analytical information about the sample under investigation. This approach allows separation of otherwise overlapping peaks. Accordingly, the O1s peaks of the silicon oxide substrate, the iron oxide nanoparticles, and that of the casting solvent can be separated from each other. Similarly the C1s peak belonging to the solvent can be separated from that of the adventitious carbon. The charging shifts of the iron nanoparticles are strongly influenced by the surrounding solvent. Hence, acetone exhibits the largest shift, water the smallest, and methanol in between. Dynamical measurements performed by application of the voltage stress in the form of SQW pulses gives information about the time constants of the processes involved, which led us postulate that these charging properties we probe in these systems, stem mainly from ionic movement(s).

  10. DOE’s Second National Cleanup Workshop Set for Sept. 14-15 in the Washington, D.C. Area

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – DOE, in cooperation with the Energy Communities Alliance and Energy Facility Contractors Group, is set to hold the second DOE National Cleanup Workshop on Sept. 14-15, 2016, at the Hilton Alexandria Mark Center in Alexandria, Va.

  11. ENERGISE-ing Solutions to Scale Up Distributed Solar

    Broader source: Energy.gov [DOE]

    If a utility pole falls in a forest and no energy company employee is around to hear it, does it make a sound? Currently, the answer is no. The Energy Department’s SunShot Initiative is trying to fix this problem to alleviate issues for both utilities and their customers.

  12. Certification review of the DC-1 packaging for transport of HEU oxide

    SciTech Connect (OSTI)

    Primeau, S.J.; Thomas, G.R.

    1995-11-01

    The DC-1, a packaging for the transport of up to 19.7 kg of high-enriched uranium oxide, has been submitted for Department of Energy (DOE) Headquarters certification. The technical review for regulatory compliance is discussed from the reviewer`s standpoint, with emphasis on three notable aspects of the packaging design: (1) The packaging is the first submitted for DOE certification under the provisions of 10 CFR 71.55(c). (2) The containment vessels were fabricated in accordance with Section 8 of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code; however, additional inspection requirements were imposed at the time of fabrication. Compliance with the requirements of Section 3 of the ASME Code is discussed. (3) A temporary adapter plate is installed between the lid and body of each containment vessel to facilitate periodic leak testing of the containment boundaries. This procedure is compared against the recommendations in the American National Standards Institute (ANSI) N14.5 Standard.

  13. Characterization of the CEBAF 100 kV DC GaAs Photoelectron Gun Vacuum System

    SciTech Connect (OSTI)

    M.L. Stutzman; P. Adderley; J. Brittian; J. Clark; J. Grames; J. Hansknecht; G.R. Myneni; M. Poelker

    2007-05-01

    A vacuum system with pressure in the low ultra-high vacuum (UHV) range is essential for long photocathode lifetimes in DC high voltage GaAs photoguns. A discrepancy between predicted and measured base pressure in the CEBAF photoguns motivated this study of outgassing rates of three 304 stainless steel chambers with different pretreatments and pump speed measurements of non-evaporable getter (NEG) pumps. Outgassing rates were measured using two independent techniques. Lower outgassing rates were achieved by electropolishing and vacuum firing the chamber. The second part of the paper describes NEG pump speed measurements as a function of pressure through the lower part of the UHV range. Measured NEG pump speed is high at pressures above 5Ś10^?11 Torr, but may decrease at lower pressures depending on the interpretation of the data. The final section investigates the pump speed of a locally produced NEG coating applied to the vacuum chamber walls. These studies represent the first detailed vacuum measurements of CEBAF photogun vacuum chambers.

  14. Structural and optical properties of DC reactive magnetron sputtered zinc aluminum oxide thin films

    SciTech Connect (OSTI)

    Kumar, B. Rajesh; Rao, T. Subba

    2014-10-15

    Highly transparent conductive Zinc Aluminum Oxide (ZAO) thin films have been deposited on glass substrates using DC reactive magnetron sputtering method. The thin films were deposited at 200 °C and post-deposition annealing from 15 to 90 min. XRD patterns of ZAO films exhibit only (0 0 2) diffraction peak, indicating that they have c-axis preferred orientation perpendicular to the substrate. Scanning electron microscopy (SEM) is used to study the surface morphology of the films. The grain size obtained from SEM images of ZAO thin films are found to be in the range of 20 - 26 nm. The minimum resistivity of 1.74 Ś 10{sup ?4} ? cm and an average transmittance of 92% are obtained for the thin film post annealed for 30 min. The optical band gap of ZAO thin films increased from 3.49 to 3.60 eV with the increase of annealing time due to Burstein-Moss effect. The optical constants refractive index (n) and extinction coefficient (k) were also determined from the optical transmission spectra.

  15. Fabrication of layered self-standing diamond film by dc arc plasma jet chemical vapor deposition

    SciTech Connect (OSTI)

    Chen, G. C.; Dai, F. W.; Li, B.; Lan, H.; Askari, J.; Tang, W. Z.; Lu, F. X.

    2007-01-15

    Layered self-standing diamond films, consisting of an upper layer, buffer layer, and a lower layer, were fabricated by fluctuating the ratio of methane to hydrogen in high power dc arc plasma jet chemical vapor deposition. There were micrometer-sized columnar diamond crystalline grains in both upper layer and lower layer. The size of the columnar diamond crystalline grains was bigger in the upper layer than that in the lower layer. The orientation of the upper layer was (110), while it was (111) for the lower layer. Raman results showed that no sp{sup 3} peak shift was found in the upper layer, but it was found and blueshifted in the lower layer. This indicated that the internal stress within the film body could be tailored by this layered structure. The buffer layer with nanometer-sized diamond grains formed by secondary nucleation was necessary in order to form the layered film. Growth rate was over 10 {mu}m/h in layered self-standing diamond film fabrication.

  16. DOE Advanced Controls R&D Planning Workshop, June 11, 2003, Washington DC: Workshop Results

    SciTech Connect (OSTI)

    Brambley, Michael R.; Haves, Philip; McDonald, Sean C.; Torcellini, Paul; Hansen, David G.; Holmberg, David; Roth, Kurt

    2005-04-13

    On June 11, 2003, representatives from universities, federal and state government agencies, Department of Energy national laboratories, and the private sector attended a one-day workshop in Washington, DC. The objective of the workshop was to review and provide input into DOE's assessment of the market for advanced sensors and controls technology and potential R&D pathways to enhance their success in the buildings market place. The workshop consisted of two sessions. During the morning session, participants were given an overview on the following topics: market assessment, current applications and strategies for new applications, sensors and controls, networking, security, and protocols and standards, and automated diagnostics, performance measurement, commissioning and optimal control and tools. In the sessions, workshop participants were asked to review the potential R&D pathways, identify high priority activities, and outline a five year path for each of these activities. Priorities were as follows: largest and quickest impact; best use of finite resources; greatest likelihood for market penetration; and ability to replicate results. The participants identified several promising R&D opportunities.

  17. Low noise charge sensitive preamplifier DC stabilized without a physical resistor

    DOE Patents [OSTI]

    Bertuccio, Giuseppe; Rehak, Pavel; Xi, Deming

    1994-09-13

    The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier.

  18. Low noise charge sensitive preamplifier DC stabilized without a physical resistor

    DOE Patents [OSTI]

    Bertuccio, G.; Rehak, P.; Xi, D.

    1994-09-13

    The invention is a novel charge sensitive preamplifier (CSP) which has no resistor in parallel with the feedback capacitor. No resetting circuit is required to discharge the feedback capacitor. The DC stabilization of the preamplifier is obtained by means of a second feedback loop between the preamplifier output and the common base transistor of the input cascode. The input transistor of the preamplifier is a Junction Field Transistor (JFET) with the gate-source junction forward biased. The detector leakage current flows into this junction. This invention is concerned with a new circuit configuration for a charge sensitive preamplifier and a novel use of the input Field Effect Transistor of the CSP itself. In particular this invention, in addition to eliminating the feedback resistor, eliminates the need for external devices between the detector and the preamplifier, and it eliminates the need for external circuitry to sense the output voltage and reset the CSP. Furthermore, the noise level of the novel CSP is very low, comparable with the performance achieved with other solutions. Experimental tests prove that this configuration for the charge sensitive preamplifier permits an excellent noise performance at temperatures including room temperature. An equivalent noise charge of less than 20 electrons r.m.s. has been measured at room temperature by using a commercial JFET as input device of the preamplifier. 6 figs.

  19. Method for manufacturing compound semiconductor field-effect transistors with improved DC and high frequency performance

    DOE Patents [OSTI]

    Zolper, John C.; Sherwin, Marc E.; Baca, Albert G.

    2000-01-01

    A method for making compound semiconductor devices including the use of a p-type dopant is disclosed wherein the dopant is co-implanted with an n-type donor species at the time the n-channel is formed and a single anneal at moderate temperature is then performed. Also disclosed are devices manufactured using the method. In the preferred embodiment n-MESFETs and other similar field effect transistor devices are manufactured using C ions co-implanted with Si atoms in GaAs to form an n-channel. C exhibits a unique characteristic in the context of the invention in that it exhibits a low activation efficiency (typically, 50% or less) as a p-type dopant, and consequently, it acts to sharpen the Si n-channel by compensating Si donors in the region of the Si-channel tail, but does not contribute substantially to the acceptor concentration in the buried p region. As a result, the invention provides for improved field effect semiconductor and related devices with enhancement of both DC and high-frequency performance.

  20. Applications of exact linearization techniques for steady-state stability enhancement in a weak ac/dc system

    SciTech Connect (OSTI)

    Kaprielian, S.; Clements, K. ); Turi, J. )

    1992-05-01

    A nonlinear control strategy to improve the steady-state stability of a weak AC/DC power system is presented. The approach described in this paper is based on the extension of feedback linearization techniques to nonlinear descriptor system models. This method produces a nonlinear control strategy which is capable of enhancing system performance for various system operating conditions. This claim is supported with simulation results.

  1. Comparison of the complete genome sequences of Pseudomonassyringae pv. syringae B728a and pv. tomato DC3000.

    SciTech Connect (OSTI)

    Feil, Helene; Feil, William S.; Chain, Patrick; Larimer, Frank; DiBartolo, Genevieve; Copeland, Alex; Lykidis, Athanasios; Trong,Stephen; Nolan, Matt; Goltsman, Eugene; Thiel, James; Malfatti,Stephanie; Loper, Joyce E.; Lapidus, Alla; Detter, John C.; Land, Miriam; Richardson, Paul M.; Kyrpides, Nikos C.; Ivanova, Natalia; Lindow, StevenE.

    2005-04-01

    The complete genomic sequence of Pseudomonas syringaepathovar syringae B728a (Pss B728a), has been determined and is comparedwith that of Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Thesetwo pathovars of this economically important species of plant pathogenicbacteria differ in host range and apparent patterns of interaction withplants, with Pss having a more pronounced epiphytic stage of growth andhigher abiotic stress tolerance and Pst DC3000 having a more pronouncedapoplastic growth habitat. The Pss B728a genome (6.1 megabases) containsa circular chromosome and no plasmid, whereas the Pst DC3000 genome is6.5 mbp in size, composed of a circular chromosome and two plasmids.While a high degree of similarity exists between the two sequencedPseudomonads, 976 protein-encoding genes are unique to Pss B728a whencompared to Pst DC3000, including large genomic islands likely tocontribute to virulence and host specificity. Over 375 repetitiveextragenic palindromic sequences (REPs) unique to Pss B728a when comparedto Pst DC3000 are widely distributed throughout the chromosome except in14 genomic islands, which generally had lower GC content than the genomeas a whole. Content of the genomic islands vary, with one containing aprophage and another the plasmid pKLC102 of P. aeruginosa PAO1. Among the976 genes of Pss B728a with no counterpart in Pst DC3000 are thoseencoding for syringopeptin (SP), syringomycin (SR), indole acetic acidbiosynthesis, arginine degradation, and production of ice nuclei. Thegenomic comparison suggests that several unique genes for Pss B728a suchas ectoine synthase, DNA repair, and antibiotic production may contributeto epiphytic fitness and stress tolerance of this organism. Pseudomonassyringae, a member of the gamma subgroup of the Proteobacteria, is awidespread bacterial pathogen of many plant species. The species P.syringae is subdivided into approximately 50 pathovars based onpathogenicity and host range. P. syringae is capable of producing avariety of different symptoms depending on the host species and site ofinfection. For example, it causes leaf spot diseases that defoliateplants such as tomato, bean, soybean, trunk cankers, and so-called"blast" diseases on fruit, nut and ornamental species. Considerablevariation occurs both between and within different pathovars of P.syringae (1). Because of its importance as a plant pathogen, it has beenthe subject of much research, especially of its epidemiology andvirulence mechanisms (2). Pseudomonas syringae pv. syringae (Pss) strainB728a is typical of most strains of this pathovar in that it exhibits avery pronounced epiphytic phase on plants. Such strains achieve andmaintain large populations on healthy plants, where they are exposed tostressful conditions such as dryness and sunlight that are hostile tobacterial growth(2). Epiphytic Pss populations serve as inocula that cansubsequently invade plants and initiate disease. Pss strains are distinctfrom many P. syringae strains, such as P. syringae pv. tomato (Pst)strain DC3000, that poorly colonize the exterior of plants; these strainsmay be considered "endophytes" based on their ability to multiply mostlywithin the plant (3). True epiphytes such as Pss B728a often reachsurface populations of over 107 cells/g while strains such as Pst DC3000seldom exceed 105 cells/g (2, 3). Thus, these strains might be consideredto occupy different ends of the epiphytic/endophytic spectrum of plantcolonization as described by Beattie and Lindow (4). As a pathogen and anepiphyte, Pss B728a has evolved to exploit at least two distincthabitats: the leaf surface and apoplast. Because rapid changes intemperature, low water content, and incident solar radiation occur onleaf surfaces, it has been hypothesized that the epiphyte Pss B728aposseses more genes conferring environmental stress tolerance than theendophyte Pst DC3000 (4). Pss B728a also exhibits several traits such asice nucleation activity and SR production (2) that are lacking in manyother strains of P. syringae including Pst DC3000. As the most icenucleation active bacterial species, P. syringae is responsible forinciting frost injury to frost sensitive plants that can supercool andavoid damaging ice formation if not colonized by ice nucleation activebacteria (2,4). We present here a genomic comparison between strains PssB728a and Pst DC3000 of P. syringae pathovars as well as between thesestrains and P. aeruginosa and P. putida, two additional Pseudomonadsrecently sequenced. These genomic comparisons provide insights into theevolutionary history and diverse life styles of the pseudomonads,including their association with the environment, plant or mammalianhosts.

  2. Modeling and simulation, and their validation of three-phase transformers with three legs under DC bias

    SciTech Connect (OSTI)

    Fuchs, E.F.; You, Y.; Roesler, D.J.

    1999-04-01

    This paper proposes a new model for three-phase transformers with three legs with and without tank under DC bias based on electric and magnetic circuit theory. For the calculation of the nonsinusoidal no-load currents, a combination of time and frequency domains is used. The analysis shows that (1) asymmetric three-phase transformers with three legs generate magnetizing currents with triplen harmonics not being of the zero-sequence type. (2) The wave shapes of the three magnetizing currents of (asymmetric) transformers are dependent on the phase sequence. (3) The magnetic history of transformer magnetization -- due to residual magnetization and hysteresis of the tank -- cannot be ignored if a DC bias is present and the magnetic influence of the tank is relatively strong, e.g., for oil-cooled transformers. (4) Symmetric three-phase transformers with three legs generate no-load currents without triplen harmonics. (5) The effects of DC bias currents (e.g., reactive power demand, harmonic distortion) can be suppressed employing symmetric three-phase transformers with three legs including tank. Measurements corroborate computational results; thus this nonlinear model is valid and accurate.

  3. Charge and fluence lifetime measurements of a dc high voltage GaAs photogun at high average current

    SciTech Connect (OSTI)

    J. Grames, R. Suleiman, P.A. Adderley, J. Clark, J. Hansknecht, D. Machie, M. Poelker, M.L. Stutzman

    2011-04-01

    GaAs-based dc high voltage photoguns used at accelerators with extensive user programs must exhibit long photocathode operating lifetime. Achieving this goal represents a significant challenge for proposed high average current facilities that must operate at tens of milliamperes or more. This paper describes techniques to maintain good vacuum while delivering beam, and techniques that minimize the ill effects of ion bombardment, the dominant mechanism that reduces photocathode yield of a GaAs-based dc high voltage photogun. Experimental results presented here demonstrate enhanced lifetime at high beam currents by: (a) operating with the drive laser beam positioned away from the electrostatic center of the photocathode, (b) limiting the photocathode active area to eliminate photoemission from regions of the photocathode that do not support efficient beam delivery, (c) using a large drive laser beam to distribute ion damage over a larger area, and (d) by applying a relatively low bias voltage to the anode to repel ions created within the downstream beam line. A combination of these techniques provided the best total charge extracted lifetimes in excess of 1000 C at dc beam currents up to 9.5 mA, using green light illumination of bulk GaAs inside a 100 kV photogun.

  4. TiN coated aluminum electrodes for DC high voltage electron guns

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mamun, Md Abdullah A.; Elmustafa, Abdelmageed A.; Taus, Rhys; Forman, Eric; Poelker, Matthew

    2015-05-01

    Preparing electrodes made of metals like stainless steel, for use inside DC high voltage electron guns, is a labor-intensive and time-consuming process. In this paper, the authors report the exceptional high voltage performance of aluminum electrodes coated with hard titanium nitride (TiN). The aluminum electrodes were comparatively easy to manufacture and required only hours of mechanical polishing using silicon carbide paper, prior to coating with TiN by a commercial vendor. The high voltage performance of three TiN-coated aluminum electrodes, before and after gas conditioning with helium, was compared to that of bare aluminum electrodes, and electrodes manufactured from titanium alloymore » (Ti-6AI-4V). Following gas conditioning, each TiN-coated aluminum electrode reached -225 kV bias voltage while generating less than 100 pA of field emission (<10 pA) using a 40 mm cathode/anode gap, corresponding to field strength of 13.7 MV/m. Smaller gaps were studied to evaluate electrode performance at higher field strength with the best performing TiN-coated aluminum electrode reaching ~22.5 MV/m with field emission less than 100 pA. These results were comparable to those obtained from our best-performing electrodes manufactured from stainless steel, titanium alloy and niobium, as reported in references cited below. The TiN coating provided a very smooth surface and with mechanical properties of the coating (hardness and modulus) superior to those of stainless steel, titanium-alloy, and niobium electrodes. These features likely contributed to the improved high voltage performance of the TiN-coated aluminum electrodes.« less

  5. TiN coated aluminum electrodes for DC high voltage electron guns

    SciTech Connect (OSTI)

    Mamun, Md Abdullah A.; Elmustafa, Abdelmageed A.; Taus, Rhys; Forman, Eric; Poelker, Matthew

    2015-05-15

    Preparing electrodes made of metals like stainless steel, for use inside DC high voltage electron guns, is a labor-intensive and time-consuming process. In this paper, the authors report the exceptional high voltage performance of aluminum electrodes coated with hard titanium nitride (TiN). The aluminum electrodes were comparatively easy to manufacture and required only hours of mechanical polishing using silicon carbide paper, prior to coating with TiN by a commercial vendor. The high voltage performance of three TiN-coated aluminum electrodes, before and after gas conditioning with helium, was compared to that of bare aluminum electrodes, and electrodes manufactured from titanium alloy (Ti-6Al-4V). Following gas conditioning, each TiN-coated aluminum electrode reached −225 kV bias voltage while generating less than 100 pA of field emission (<10 pA) using a 40 mm cathode/anode gap, corresponding to field strength of 13.7 MV/m. Smaller gaps were studied to evaluate electrode performance at higher field strength with the best performing TiN-coated aluminum electrode reaching ∌22.5 MV/m with field emission less than 100 pA. These results were comparable to those obtained from our best-performing electrodes manufactured from stainless steel, titanium alloy and niobium, as reported in references cited below. The TiN coating provided a very smooth surface and with mechanical properties of the coating (hardness and modulus) superior to those of stainless steel, titanium-alloy, and niobium electrodes. These features likely contributed to the improved high voltage performance of the TiN-coated aluminum electrodes.

  6. An experimental and theoretical investigation of a magnetically confined dc plasma discharge

    SciTech Connect (OSTI)

    Rondanini, Maurizio; Cavallotti, Carlo; Ricci, Daria; Chrastina, Daniel; Isella, Giovanni; Moiseev, Tamara; Kaenel, Hans von

    2008-07-01

    A magnetically confined dc plasma discharge sustained by a thermionic source was investigated using a combined experimental and theoretical approach. The discharge originates in an arc plasma source and is expanded in a cylindrical chamber, where it is stabilized by an annular anode. The plasma expansion is contained by an axial magnetic field generated by coils positioned at the top and the bottom of the reactor. The plasma reactor design allows control of the energy of ions impinging on the substrate and thus a high electron density of about 10{sup 17} m{sup -3} at 1 Pa can be reached. The plasma is studied using a model composed of the Poisson and of the charged species continuity equations, solved in the flow and temperature fields determined by solving the Navier-Stokes and Fourier equations. The model equations are integrated using the finite element method in a two-dimensional axial symmetric domain. Ionization rates are either assumed constant or determined by solving the Boltzmann transport equation in the local electric field with the Monte Carlo (MC) method. Electron and ion transport parameters are determined by accounting for magnetic confinement through a simplified solution of the ion and electron momentum conservation equations, which yielded parameters in good agreement with those determined with the MC simulations. Calculated electron densities and plasma potentials were satisfactorily compared to those measured using a Langmuir probe. The model demonstrates that the intensity of the magnetic field greatly influences the electron density, so that a decrease by a factor of 2 in its intensity corresponds to a decrease by almost an order of magnitude of the electron and ion concentrations.

  7. Evaluation of electropolished stainless steel electrodes for use in DC high voltage photoelectron guns

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    BastaniNejad, Mahzad; Elmustafa, Abdelmageed A.; Forman, Eric; Covert, Steven; Hansknecht, John; Hernandez-Garcia, Carlos; Poelker, Matthew; Das, Lopa; Kelley, Michael; Williams, Phillip

    2015-07-01

    DC high voltage photoelectron guns are used to produce polarized electron beams for accelerator-based nuclear and high-energy physics research. Low-level field emission (~nA) from the cathode electrode degrades the vacuum within the photogun and reduces the photoelectron yield of the delicate GaAs-based photocathode used to produce the electron beams. High-level field emission (>ΌA) can cause significant damage the photogun. To minimize field emission, stainless steel electrodes are typically diamond-paste polished, a labor-intensive process often yielding field emission performance with a high degree of variability, sample to sample. As an alternative approach and as comparative study, the performance of electrodes electropolishedmore » by conventional commercially available methods is presented. Our observations indicate the electropolished electrodes exhibited less field emission upon the initial application of high voltage, but showed less improvement with gas conditioning compared to the diamond-paste polished electrodes. In contrast, the diamond-paste polished electrodes responded favorably to gas conditioning, and ultimately reached higher voltages and field strengths without field emission, compared to electrodes that were only electropolished. The best performing electrode was one that was both diamond-paste polished and electropolished, reaching a field strength of 18.7 MV/m while generating less than 100 pA of field emission. The speculate that the combined processes were the most effective at reducing both large and small scale topography. However, surface science evaluation indicates topography cannot be the only relevant parameter when it comes to predicting field emission performance.« less

  8. Evaluation of electropolished stainless steel electrodes for use in DC high voltage photoelectron guns

    SciTech Connect (OSTI)

    BastaniNejad, Mahzad; Elmustafa, Abdelmageed A.; Forman, Eric; Covert, Steven; Hansknecht, John; Hernandez-Garcia, Carlos; Poelker, Matthew; Das, Lopa; Kelley, Michael; Williams, Phillip

    2015-07-01

    DC high voltage photoelectron guns are used to produce polarized electron beams for accelerator-based nuclear and high-energy physics research. Low-level field emission (~nA) from the cathode electrode degrades the vacuum within the photogun and reduces the photoelectron yield of the delicate GaAs-based photocathode used to produce the electron beams. High-level field emission (>?A) can cause significant damage the photogun. To minimize field emission, stainless steel electrodes are typically diamond-paste polished, a labor-intensive process often yielding field emission performance with a high degree of variability, sample to sample. As an alternative approach and as comparative study, the performance of electrodes electropolished by conventional commercially available methods is presented. Our observations indicate the electropolished electrodes exhibited less field emission upon the initial application of high voltage, but showed less improvement with gas conditioning compared to the diamond-paste polished electrodes. In contrast, the diamond-paste polished electrodes responded favorably to gas conditioning, and ultimately reached higher voltages and field strengths without field emission, compared to electrodes that were only electropolished. The best performing electrode was one that was both diamond-paste polished and electropolished, reaching a field strength of 18.7 MV/m while generating less than 100 pA of field emission. The speculate that the combined processes were the most effective at reducing both large and small scale topography. However, surface science evaluation indicates topography cannot be the only relevant parameter when it comes to predicting field emission performance.

  9. Evaluation of electropolished stainless steel electrodes for use in DC high voltage photoelectron guns

    SciTech Connect (OSTI)

    BastaniNejad, Mahzad Elmustafa, Abdelmageed A.; Forman, Eric; Covert, Steven; Hansknecht, John; Hernandez-Garcia, Carlos; Poelker, Matthew; Das, Lopa; Kelley, Michael; Williams, Phillip

    2015-07-15

    DC high voltage photoelectron guns are used to produce polarized electron beams for accelerator-based nuclear and high-energy physics research. Low-level field emission (?nA) from the cathode electrode degrades the vacuum within the photogun and reduces the photoelectron yield of the delicate GaAs-based photocathode used to produce the electron beams. High-level field emission (>?A) can cause significant damage the photogun. To minimize field emission, stainless steel electrodes are typically diamond-paste polished, a labor-intensive process often yielding field emission performance with a high degree of variability, sample to sample. As an alternative approach and as comparative study, the performance of electrodes electropolished by conventional commercially available methods is presented. Our observations indicate the electropolished electrodes exhibited less field emission upon the initial application of high voltage, but showed less improvement with gas conditioning compared to the diamond-paste polished electrodes. In contrast, the diamond-paste polished electrodes responded favorably to gas conditioning, and ultimately reached higher voltages and field strengths without field emission, compared to electrodes that were only electropolished. The best performing electrode was one that was both diamond-paste polished and electropolished, reaching a field strength of 18.7 MV/m while generating less than 100?pA of field emission. The authors speculate that the combined processes were the most effective at reducing both large and small scale topography. However, surface science evaluation indicates topography cannot be the only relevant parameter when it comes to predicting field emission performance.

  10. TiN coated aluminum electrodes for DC high voltage electron guns

    SciTech Connect (OSTI)

    Mamun, Md Abdullah A.; Elmustafa, Abdelmageed A.; Taus, Rhys; Forman, Eric; Poelker, Matthew

    2015-05-01

    Preparing electrodes made of metals like stainless steel, for use inside DC high voltage electron guns, is a labor-intensive and time-consuming process. In this paper, the authors report the exceptional high voltage performance of aluminum electrodes coated with hard titanium nitride (TiN). The aluminum electrodes were comparatively easy to manufacture and required only hours of mechanical polishing using silicon carbide paper, prior to coating with TiN by a commercial vendor. The high voltage performance of three TiN-coated aluminum electrodes, before and after gas conditioning with helium, was compared to that of bare aluminum electrodes, and electrodes manufactured from titanium alloy (Ti-6AI-4V). Following gas conditioning, each TiN-coated aluminum electrode reached -225 kV bias voltage while generating less than 100 pA of field emission (<10 pA) using a 40 mm cathode/anode gap, corresponding to field strength of 13.7 MV/m. Smaller gaps were studied to evaluate electrode performance at higher field strength with the best performing TiN-coated aluminum electrode reaching ~22.5 MV/m with field emission less than 100 pA. These results were comparable to those obtained from our best-performing electrodes manufactured from stainless steel, titanium alloy and niobium, as reported in references cited below. The TiN coating provided a very smooth surface and with mechanical properties of the coating (hardness and modulus) superior to those of stainless steel, titanium-alloy, and niobium electrodes. These features likely contributed to the improved high voltage performance of the TiN-coated aluminum electrodes.

  11. Nuclear Materials Research and Technology/Los Alamos National...

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

    ... The DC-ARC-AES capability is also be- ing upgraded to a CID (charge injection device) ... J. A. Lloyd, W. L. Manner and M. T. Paffett, "Methanol Adsorption and Reactivity at U and ...

  12. Data:E27214d6-18ee-410f-87b6-ecf189dc6f07 | Open Energy Information

    Open Energy Info (EERE)

    ecf189dc6f07 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 Information 2....

  13. Data:6941e69c-3b58-4100-9f8a-95b61dc551f9 | Open Energy Information

    Open Energy Info (EERE)

    dc551f9 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 Information 2....

  14. Use of Management and Operating or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C., Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-10-29

    To establish policies and procedures for management of DOE, including NNSA, Management and Operating (M&O) and other facility management contractor employees assigned to the Washington, D.C., area. Cancels DOE O 350.2.

  15. Use of Management and Operating or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C. Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2015-05-18

    The Order establishes policies and procedures for managing DOE and NNSA management and operating (M&O) contractors and other facility management contractor employees assigned to the Washington, D.C., area.

  16. Development of a New Class of Low Cost, High Frequency Link Direct DC to AC Converters for Solid Oxide Fuel Cells (SOFC)

    SciTech Connect (OSTI)

    Prasad Enjeti; J.W. Howze

    2003-12-01

    This project proposes to design and develop a new class of power converters (direct DC to AC) to drastically improve performance and optimize the cost, size, weight and volume of the DC to AC converter in SOFC systems. The proposed topologies employ a high frequency link; direct DC to AC conversion approach. The direct DC to AC conversion approach is more efficient and operates without an intermediate dc-link stage. The absence of the dc-link, results in the elimination of bulky, aluminum electrolytic capacitors, which in turn leads to a reduction in the cost, volume, size and weight of the power electronic converter. The feasibility of two direct DC to AC converter topologies and their suitability to meet SECA objectives will be investigated. Laboratory proto-type converters (3-5kW) will be designed and tested in Phase-1. A detailed design trade-off study along with the test results will be available in the form of a report for the evaluation of SECA Industrial partners. This project proposes to develop a new and innovative power converter technology suitable for Solid Oxide Fuel Cell (SOFC) power systems in accordance with SECA objectives. The proposed fuel cell inverter (FCI) employs state of the art power electronic devices configured in two unique topologies to achieve direct conversion of DC power (24-48V) available from a SOFC to AC power (120/240V, 60Hz) suitable for utility interface and powering stand alone loads. The primary objective is to realize cost effective fuel cell converter, which operates under a wide input voltage range, and output load swings with high efficiency and improved reliability.

  17. Scaling of economic benefits from Green Roof implementation in Washington, DC.

    SciTech Connect (OSTI)

    Niu, H.; Clark, C. E.; Zhou, J.; Adriaens, P.; Environmental Science Division; Dalian Univ. of Technology; Univ. of Michigan

    2010-06-01

    Green roof technology is recognized for mitigating stormwater runoff and energy consumption. Methods to overcome the cost gap between green roofs and conventional roofs were recently quantified by incorporating air quality benefits. This study investigates the impact of scaling on these benefits at the city-wide scale using Washington, DC as a test bed because of the proposed targets in the 20-20-20 vision (20 million ft{sup 2} by 2020) articulated by Casey Trees, a nonprofit organization. Building-specific stormwater benefits were analyzed assuming two proposed policy scenarios for stormwater fees ranging from 35 to 50% reduction for green roof implementation. Heat flux calculations were used to estimate building-specific energy savings for commercial buildings. To assess benefits at the city scale, stormwater infrastructure savings were based on operational savings and size reduction due to reduced stormwater volume generation. Scaled energy infrastructure benefits were calculated using two size reductions methods for air conditioners. Avoided carbon dioxide, nitrogen oxide (NOx), and sulfur dioxide emissions were based on reductions in electricity and natural gas consumption. Lastly, experimental and fugacity-based estimates were used to quantify the NOx uptake by green roofs, which was translated to health benefits using U.S. Environmental Protection Agency models. The results of the net present value (NPV) analysis showed that stormwater infrastructure benefits totaled $1.04 million (M), while fee-based stormwater benefits were $0.22-0.32 M/y. Energy savings were $0.87 M/y, while air conditioner resizing benefits were estimated at $0.02 to $0.04 M/y and avoided emissions benefits (based on current emission trading values) were $0.09 M-0.41 M/y. Over the lifetime of the green roof (40 years), the NPV is about 30-40% less than that of conventional roofs (not including green roof maintenance costs). These considerable benefits, in concert with current and emerging policy frameworks, may facilitate future adoption of this technology.

  18. Brushed permanent magnet DC MLC motor operation in an external magnetic field

    SciTech Connect (OSTI)

    Yun, J.; St Aubin, J.; Rathee, S.; Fallone, B. G.

    2010-05-15

    Purpose: Linac-MR systems for real-time image-guided radiotherapy will utilize the multileaf collimators (MLCs) to perform conformal radiotherapy and tumor tracking. The MLCs would be exposed to the external fringe magnetic fields of the linac-MR hybrid systems. Therefore, an experimental investigation of the effect of an external magnetic field on the brushed permanent magnet DC motors used in some MLC systems was performed. Methods: The changes in motor speed and current were measured for varying external magnetic field strengths up to 2000 G generated by an EEV electromagnet. These changes in motor characteristics were measured for three orientations of the motor in the external magnetic field, mimicking changes in motor orientations due to installation and/or collimator rotations. In addition, the functionality of the associated magnetic motor encoder was tested. The tested motors are used with the Varian 120 leaf Millennium MLC (Maxon Motor half leaf and full leaf motors) and the Varian 52 leaf MKII MLC (MicroMo Electronics leaf motor) including a carriage motor (MicroMo Electronics). Results: In most cases, the magnetic encoder of the motors failed prior to any damage to the gearbox or the permanent magnet motor itself. This sets an upper limit of the external magnetic field strength on the motor function. The measured limits of the external magnetic fields were found to vary by the motor type. The leaf motor used with a Varian 52 leaf MKII MLC system tolerated up to 450{+-}10 G. The carriage motor tolerated up to 2000{+-}10 G field. The motors used with the Varian 120 leaf Millennium MLC system were found to tolerate a maximum of 600{+-}10 G. Conclusions: The current Varian MLC system motors can be used for real-time image-guided radiotherapy coupled to a linac-MR system, provided the fringe magnetic fields at their locations are below the determined tolerance levels. With the fringe magnetic fields of linac-MR systems expected to be larger than the tolerance levels determined, some form of magnetic shielding would be required.

  19. Suhr 7900.955 L*E+ru Pkzza. S. Iv.. Washington, D.C. 20024-i

    Office of Legacy Management (LM)

    Suhr 7900.955 L*E+ru Pkzza. S. Iv.. Washington, D.C. 20024-i 7117~03.8J.cdy.4 23 September 19E M r. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UN11 The attached elimination recommendation was prepar with your suggestion during our meeting on 22 September includes 26 colleges and universities identified.in Enc Aerospace letter subject: Status of

  20. Influence of the airflow speed along transmission lines on the DC corona discharge loss, using finite element approach

    SciTech Connect (OSTI)

    Shemshadi, A.; Akbari, A.; Niayesh, K.

    2012-07-15

    Corona discharge is of great interest from the physical point of view and due to its numerous practical applications in industry and especially one of the most important sources of loss in the high voltage transmission lines. This paper provides guidelines for the amount of electric loss caused by corona phenomenon occurred around a DC high voltage wire placed between two flat plates and influence of wind speed rate on the amount of corona loss using COMSOL Multiphysics. So electric potential distribution patterns and charge density diffusion around the wire are studied in this article.

  1. E&nr Ph. S. W.. Wahhgt~n. D.C. 200242174, TIkpbnc (202) 48a60uo

    Office of Legacy Management (LM)

    75' 00.955 L' E&nr Ph. S. W.. Wahhgt~n. D.C. 200242174, TIkpbnc (202) 48a60uo 7117-03.87.cdy.43 23 September 1987 CR CA.d M r. Andrew Wallo, III, NE-23 Division of Facility & Site Decoaunissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES M /4.0-03 kl 77.0% I - The attached elimination reconunendation was prepared in accordance rlL.0~ with your suggestion during our meeting on 22 September. The

  2. A Five-Level Three-Phase Cascade Multilevel Inverter Using a Single DC Source for a PM Synchronous Motor Drive

    SciTech Connect (OSTI)

    Ozpineci, Burak; Chiasson, John N; Tolbert, Leon M

    2007-01-01

    The interest here is in using a single DC power source to construct a 3-phase 5-level cascade multilevel inverter to be used as a drive for a PM traction motor. The 5-level inverter consists of a standard 3-leg inverter (one leg for each phase) and an H-bridge in series with each inverter leg, which use a capacitor as a DC source. It is shown that one can simultaneously maintain the regulation of the capacitor voltage while achieving an output voltage waveform which is 25% higher than that obtained using a standard 3-leg inverter by itself.

  3. Moab Project Disposes 2 Million Tons of Uranium Mill Tailings...

    Office of Environmental Management (EM)

    The Moab Uranium Mill Tailings Remedial Action Project reached its primary American ... our first 2 years of moving tailings," Moab Federal Project Director Donald Metzler said. ...

  4. Moab Marks 6-Million-Ton Cleanup Milestone

    Broader source: Energy.gov [DOE]

    MOAB, Utah – 6,000,000 is a big number, and it marks a significant cleanup milestone in the Beehive State.

  5. Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal...

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

    from reaching the groundwater and the Columbia River. ERDF receives contaminated soil, demolition debris, and solid waste from cleanup operations across the...

  6. Department of Energy Releases New 'Billion-Ton' Study Highlighting...

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

    impacting other vital U.S. farm and forest products, such as food, feed, and fiber crops. ... in-depth analyses of land-use changes and competition among food, feed, and energy crops. ...

  7. KCP relocates 18-ton machine | National Nuclear Security Administratio...

    National Nuclear Security Administration (NNSA)

    relocations. It took nearly three days to disassemble the machine and prepare it for transport. The machine was partially disassembled, removing auxiliary pieces from the main...

  8. Energy Department Employee Recognized for Eliminating One Million Tons of

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

    Development | Department of Energy The Energy Department today issued a Geothermal Regulatory Roadmap that will help developers navigate regulatory requirements at every level of government to deploy geothermal energy projects. In partnership with the Bureau of Land Management, U.S. Fish and Wildlife Service, and U.S. Forest Service, the Energy Department enlisted the National Renewable Energy Laboratory to convene key federal, state, and local permitting officials, along with industry

  9. 14,700 tons of silver at Y-12

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

    calutron magnets was because of a shortage of copper during the war. As you will recall, Gen. Groves sent Col. Nichols to arrange for the purchase of as much uranium ore as could...

  10. Temperature dependent DC electrical conductivity studies of ZnO nanoparticle thick films prepared by simple solution combustion method

    SciTech Connect (OSTI)

    Naveen, C. S. Jayanna, H. S. Lamani, Ashok R. Rajeeva, M. P.

    2014-04-24

    ZnO nanoparticles of different size were prepared by varying the molar ratio of glycine and zinc nitrate hexahydrate as fuel and oxidizer (F/O = 0.8, 1.11, 1.7) by simple solution combustion method. Powder samples were characterized by UV-Visible spectrophotometer, X-ray diffractometer, Scanning electron microscope (SEM). DC electrical conductivity measurements at room temperature and in the temperature range of 313-673K were carried out for the prepared thick films and it was found to increase with increase of temperature which confirms the semiconducting nature of the samples. Activation energies were calculated and it was found that, F/O molar ratio 1.7 has low E{sub AL} (Low temperature activation energy) and high E{sub AH} (High temperature activation energy) compared to other samples.

  11. Study of the effect of plasma-striking atmosphere on Fe-oxidation in thermal dc arc-plasma processing

    SciTech Connect (OSTI)

    Banerjee, I.; Khollam, Y. B.; Mahapatra, S. K.; Das, A. K.; Bhoraskar, S. V.

    2010-11-15

    The effect of plasma-striking atmosphere: air and air+Ar-gas on the crystallization of Fe-oxide phases was studied using dc thermal arc-plasma processing route. The powders were characterized by x-ray diffraction, vibrating sample magnetometry, transmission electron microscopy, and Moessbauer spectroscopy techniques. At room temperature and O{sub 2} rich atmosphere, arc-evaporated Fe{sup 2+} ions oxidize into either {gamma}-Fe{sub 2}O{sub 3} or Fe{sub 3}O{sub 4} depending upon the combining ratio of Fe with molecular O{sub 2}. Fe/O ratio could be adjusted using proper flow rate of Ar gas to crystallize the pure {gamma}-Fe{sub 2}O{sub 3}.

  12. Effect of magnetic field strength on deposition rate and energy flux in a dc magnetron sputtering system

    SciTech Connect (OSTI)

    Ekpe, Samuel D.; Jimenez, Francisco J.; Field, David J.; Davis, Martin J.; Dew, Steven K.

    2009-11-15

    Variations in the magnetic field strongly affect the plasma parameters in a magnetron sputtering system. This in turn affects the throughput as well as the energy flux to the substrate. The variation in the magnetic field in this study, for a dc magnetron process, is achieved by shifting the magnet assembly slightly away from the target. Measurements of the plasma parameters show that while the electron density at the substrate increases with decrease in magnetic field, the electron temperature decreases. The cooling of the electron temperature is consistent with results reported elsewhere. The deposition rate per input magnetron power is found to increase slightly with the decrease in magnetic field for the process conditions considered in this study. Results suggest that the energy flux to the substrate tends to show a general decrease with the shift in the magnet assembly.

  13. Reducing Our Carbon Footprint: A Low-Energy House in Berkeley, Kabul, and Washington DC (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Diamond, Rick

    2011-04-28

    How well can we assess and improve building energy performance in California homes? How much energy-and carbon-do homes use in other parts of the world? Rick Diamond, deputy group leader of the Berkeley Lab Energy Performance of Buildings Group, discusses change, global solutions, and the stories of three houses in Berkeley, Kabul (Afghanistan), and Washington, D.C. Diamond, who is also a senior advisor at the California Institute for Energy and Environment, investigates user interactions with the built environment for improved building energy performance. The group has studied a wide range of issues related to energy use in housing, including duct system efficiency, user behavior, and infiltration and ventilation measurements.

  14. Two (2) 175 Ton (350 Tons total) Chiller Geothermal Heat Pumps for recently commissioned LEED Platinum Building

    Broader source: Energy.gov [DOE]

    This project will operate; collect data; and market the energy savings and capital costs of a recently commissioned chiller geothermal heat pump project to promote the wide-spread adoption of this mature technology.

  15. Straight and chopped dc performance data for a General Electric 5BT 2366C10 motor and an EV-1 controller. Final report

    SciTech Connect (OSTI)

    Edie, P.C.

    1981-01-01

    This report is intended to supply the electric vehicle manufacturer with performance data on the General Electric 5BT 2366C10 series wound dc motor and EV-1 chopper controller. Data are provided for both straight and chopped dc input to the motor, at 2 motor temperature levels. Testing was done at 6 voltage increments to the motor, and 2 voltage increments to the controller. Data results are presented in both tabular and graphical forms. Tabular information includes motor voltage and current input data, motor speed and torque output data, power data and temperature data. Graphical information includes torque-speed, motor power output-speed, torque-current, and efficiency-speed plots under the various operating conditions. The data resulting from this testing shows the speed-torque plots to have the most variance with operating temperature. The maximum motor efficiency is between 86% and 87%, regardless of temperature or mode of operation. When the chopper is utilized, maximum motor efficiency occurs when the chopper duty cycle approaches 100%. At low duty cycles the motor efficiency may be considerably less than the efficiency for straight dc. Chopper efficiency may be assummed to be 95% under all operating conditions. For equal speeds at a given voltage level, the motor operated in the chopped mode develops slightly more torque than it does in the straight dc mode. System block diagrams are included, along with test setup and procedure information.

  16. Use of Management and Operating or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C. Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2011-05-31

    To establish policies and procedures for management of Department of Energy (DOE), including National Nuclear Security Administration (NNSA), management and operating (M&O) and other facility management contractor employees assigned to the Washington, D.C. area. Supersedes DOE O 350.2A

  17. Supplemental Requirements for the Use of Management and Operating or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C., Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2005-10-19

    The Notice supplements review and approval requirements of DOE O 350.2A, Use of Management and Operating (M&O) or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C., Area, dated 10-29-03.

  18. Visible light-induced photocatalytic properties of WO{sub 3} films deposited by dc reactive magnetron sputtering

    SciTech Connect (OSTI)

    Imai, Masahiro; Kikuchi, Maiko; Oka, Nobuto; Shigesato, Yuzo

    2012-05-15

    The authors examined the photocatalytic activity of WO{sub 3} films (thickness 500-600 nm) deposited on a fused quartz substrate heated at 350-800 deg. C by dc reactive magnetron sputtering using a W metal target under the O{sub 2} gas pressure from 1.0 to 5.0 Pa. Films deposited at 800 deg. C under 5.0 Pa have excellent crystallinity of triclinic, P1(1) structure and a large surface area, as confirmed by x-ray diffraction, scanning electron microscopy, and atomic force microscopy. Exposure of acetaldehyde (CH{sub 3}CHO) adsorbed onto the film surface to ultraviolet, visible, or standard fluorescence light induces oxidative photocatalytic decomposition indicated by a decrease in CH{sub 3}CHO concentration and generation of CO{sub 2} gas. For all three types of irradiation, concentration ratio of decreased CH{sub 3}CHO to increased CO{sub 2} is about 1:1, suggesting the possible presence of intermediates. The sputter-deposited WO{sub 3} film can be a good candidate as a visible light-responsive photocatalyst.

  19. Report of a workshop on nuclear forces and nonproliferation Woodrow Wilson international center for scholars, Washington, DC October 28, 2010

    SciTech Connect (OSTI)

    Pilat, Joseph F

    2010-12-08

    A workshop sponsored by the Los Alamos National Laboratory in cooperation with the Woodrow Wilson International Center for Scholars was held at the Wilson Center in Washington, DC, on October 28, 2010. The workshop addressed evolving nuclear forces and their impacts on nonproliferation in the context of the new strategic environment, the Obama Administration's Nuclear Posture Review and the 2010 NPT Review Conference. The discussions reflected the importance of the NPR for defining the role of US nuclear forces in dealing with 21st century threats and providing guidance for National Nuclear Security Administration (NNSA) and Department of Defense (DoD) programs and, for many but not all participants, highlighted its role in the successful outcome of the NPT RevCon. There was widespread support for the NPR and its role in developing the foundations for a sustainable nuclear-weapon program that addresses nuclear weapons, infrastructure and expertise in the broader nonproliferation, disarmament and international security contexts. However, some participants raised concerns about its implementation and its long-term effectiveness and sustainability.

  20. Solar Decathlon Visitors Guide 2011, National Mall, West Potomac Park, Washington, D.C., September 23 - October 2, 2011 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-09-01

    Guide to the student-designed houses, ten contests, exhibits, and workshops of the U.S. Department of Energy 2011 Solar Decathlon, held in Washington, D.C., from September 23 through October 2, 2011. Teams of college students designed and built the solar-powered houses on display here. They represent 13 U.S. states, five countries, and four continents. Now the teams are rising to the challenge by competing in 10 contests over nine days, with the championship trophy on the line. This is their time to shine. The 2011 teams may share a common goal - to design and build the best energy-efficient house powered by the sun - but their strategies are different. One house is made of precast concrete, while another 'dances' in response to its environment. Another house is meant to sit atop a building, proving the sky's the limit for energy innovation. Whatever your idea of sustainable living may be, you are bound to find it at the Solar Decathlon.

  1. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Commercial Buildings Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration...

  2. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

  3. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    Intensity (thousand Btusquare foot) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  4. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings*...

  5. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    Major Fuel Consumption (trillion Btu) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  6. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    Electricity Consumption (trillion Btu) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  7. U.S. Department of Energy Hydrogen and Fuel Cells Program 2014 Annual Merit Review and Peer Evaluation Report: June 16-20, 2014, Washington, D.C.

    SciTech Connect (OSTI)

    Not Available

    2014-10-01

    The fiscal year (FY) 2014 U.S. Department of Energy (DOE) Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting (AMR), in conjunction with DOE's Vehicle Technologies Office AMR, was held from June 16-20, 2014, at the Washington Marriott Wardman Park in Washington, D.C. This report is a summary of comments by AMR peer reviewers about the hydrogen and fuel cell projects funded by DOE's Office of Energy Efficiency and Renewable Energy (EERE).

  8. Positive field-cooled dc susceptibility in granular superconductors interpreted through numerical simulations on a simple Josephson-junction-array model

    SciTech Connect (OSTI)

    Auletta, C.; Raiconi, G.; De Luca, R.; Pace, S.

    1995-05-01

    We have performed numerical simulations of a field-cooled dc susceptibility experiment carried out for granular superconductors by modeling these systems with a simple Josephson-junction array proposed by the authors. By this analysis the temperature dependence of the positive field-cooled susceptibility at very low values of the applied magnetic field, observed by Braunisch {ital et} {ital al}. [Phys. Rev. Lett. 68, 1908 (1992)] for some ceramic superonductors, has been reproduced and interpreted.

  9. Modeling magnetic fields from a DC power cable buried beneath San Francisco Bay based on empirical measurements

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Kavet, Robert; Wyman, Megan T.; Klimley, A. Peter; Carretero, Luis

    2016-02-25

    Here, the Trans Bay Cable (TBC) is a ±200-kilovolt (kV), 400 MW 85-km long High Voltage Direct Current (DC) buried transmission line linking Pittsburg, CA with San Francisco, CA (SF) beneath the San Francisco Estuary. The TBC runs parallel to the migratory route of various marine species, including green sturgeon, Chinook salmon, and steelhead trout. In July and August 2014, an extensive series of magnetic field measurements were taken using a pair of submerged Geometrics magnetometers towed behind a survey vessel in four locations in the San Francisco estuary along profiles that cross the cable’s path; these included the Sanmore » Francisco-Oakland Bay Bridge (BB), the Richmond-San Rafael Bridge (RSR), the Benicia- Martinez Bridge (Ben) and an area in San Pablo Bay (SP) in which a bridge is not present. In this paper, we apply basic formulas that ideally describe the magnetic field from a DC cable summed vectorially with the background geomagnetic field (in the absence of other sources that would perturb the ambient field) to derive characteristics of the cable that are otherwise not immediately observable. Magnetic field profiles from measurements taken along 170 survey lines were inspected visually for evidence of a distinct pattern representing the presence of the cable. Many profiles were dominated by field distortions unrelated to the cable caused by bridge structures or other submerged objects, and the cable’s contribution to the field was not detectable. BB, with 40 of the survey lines, did not yield usable data for these reasons. The unrelated anomalies could be up to 100 times greater than those from the cable. In total, discernible magnetic field profiles measured from 76 survey lines were regressed against the equations, representing eight days of measurement. The modeled field anomalies due to the cable (the difference between the maximum and minimum field along the survey line at the cable crossing) were virtually identical to the measured values. The modeling yielded a pooled cable depth below the bay floor of 2.06 m (±1.46 std dev), and estimated the angle to the horizontal of the imaginary line connecting the crosssectional center of the cable’s two conductors (0.1143 m apart) as 178.9° ±61.9° (std dev) for Ben, 78.6°±37.0° (std dev) for RSR, and 139.9°±27.4° (std dev) for SP. The mean of the eight daily average currents derived from the regressions was 986 ±185 amperes (A) (std dev), as compared to 722 ±95 A (std dev) provided by Trans Bay Cable LLC. Overall, the regressions based on fundamental principles (Biot Savart law) and the vectorial summation of cable and geomagnetic fields provide estimates of cable characteristics consistent with plausible expectations.« less

  10. Sharp transition between two regimes of operation of dc discharge with two anodes and thermionic emission from cathode

    SciTech Connect (OSTI)

    Mustafaev, A. S.; Grabovskiy, A.; Demidov, V. I.; St. Petersburg State University, St. Petersburg 199034; University ITMO, Kronverkskiy pr. 49, St. Petersburg 197101 ; Kaganovich, I. D.; Koepke, M. E.

    2014-05-15

    In a dc discharge plasma with two anodes and thermionic emission from cathode, the two anodes are used for plasma control. The main anode is placed between the cathode and the other auxiliary anode has a circular opening for passing electron current from the cathode to the second anode. It is experimentally demonstrated that a plasma may exhibit a sudden transition between two quasi-stable conditions as one increases the cathode-electron current collected by the auxiliary anode through an aperture, i.e., hole, in the main anode. In one regime, a bright glowing “ball-shaped double layer” appears on the plasma side having a potential drop of 10–15 eV and concomitant ionization in the neighboring region attached to the opening. The second regime is characterized by a uniform potential profile in plasma and an absence of the ball-shaped double layer. The transition between these regimes is accompanied by a significant change in plasma properties, such as the electron energy distribution function (EEDF). Controlling the EEDF is a valuable capability in technological applications. Increasing the gas pressure leads to the elimination of the first regime for sufficiently high gas pressure, the threshold being a few Torr. The disappearance of a regime transition can be explained by invoking an EEDF transition, from being nonlocal at low pressure to becoming local at high pressure. Local EEDF is determined by local values of electric field. Nonlocal EEDF is determined by electric field values elsewhere, and the electron can travel without energy loss over a path much longer than the discharge dimension.

  11. CHEMICAL AND PHYSICAL CONDITIONS IN MOLECULAR CLOUD CORE DC 000.4-19.5 (SL42) IN CORONA AUSTRALIS

    SciTech Connect (OSTI)

    Hardegree-Ullman, E.; Whittet, D. C. B.; Harju, J.; Juvela, M.; Sipilae, O.; Hotzel, S.

    2013-01-20

    Chemical reactions in starless molecular clouds are heavily dependent on interactions between gas phase material and solid phase dust and ices. We have observed the abundance and distribution of molecular gases in the cold, starless core DC 000.4-19.5 (SL42) in Corona Australis using data from the Swedish ESO Submillimeter Telescope. We present column density maps determined from measurements of C{sup 18}O (J = 2-1, 1-0) and N{sub 2}H{sup +} (J = 1-0) emission features. Herschel data of the same region allow a direct comparison to the dust component of the cloud core and provide evidence for gas phase depletion of CO at the highest extinctions. The dust color temperature in the core calculated from Herschel maps ranges from roughly 10.7 to 14.0 K. This range agrees with the previous determinations from Infrared Space Observatory and Planck observations. The column density profile of the core can be fitted with a Plummer-like density distribution approaching n(r) {approx} r {sup -2} at large distances. The core structure deviates clearly from a critical Bonnor-Ebert sphere. Instead, the core appears to be gravitationally bound and to lack thermal and turbulent support against the pressure of the surrounding low-density material: it may therefore be in the process of slow contraction. We test two chemical models and find that a steady-state depletion model agrees with the observed C{sup 18}O column density profile and the observed N(C{sup 18}O) versus A{sub V} relationship.

  12. Tobin-DC

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

    Calculated Downwelling Longwave Spectral Radiances at the SHEBA Ice Station: Prelude to an Arctic AERI/LBLRTM QME D. C. Tobin, R. O. Knuteson, and H. E. Revercomb Cooperative Institute for Meteorological Satellite Studies Space, Science, and Engineering Center University of Wisconsin Madison, Wisconsin Introduction We present comparisons of clear-sky observed and calculated downwelling radiances from the year-long Surface Heat Budget of the Arctic Ocean (SHEBA) experiment. These and expected

  13. article_dc

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

    a result of the weather-related increases in the demand for electricity in 2007. Preliminary data show that total ... Reduction in shipments of coke from China of 1.6 million ...

  14. Washington. DC,20585

    Office of Legacy Management (LM)

    you mayihave. ' ,. If you have any ques Dr. Y. Alexander Wil tions, please feel free to call me at 301-903-2531 or liams (301-903UW' of my staff..,, Sincerely, Enclosures...

  15. D.C.

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

    biology, chemistry, earth science, physics, math, trigonometry, and calculus. "These kids are very well-versed in math and science," said Amy Tapia, Community Involvement ...

  16. Washington, DC,20585

    Office of Legacy Management (LM)

    If you have,any questions, please feel free to call me +301-427-1721 or Dr. W. Alexander Williams (301-427-1719) of my staff. I Director ,',, Off-SiteSavannah River Program ...

  17. I ' Washington, DC'

    Office of Legacy Management (LM)

    If'you have any questions, please feel freeto call DrI W. Alexander Uilliams 301-427-1719 of my staff. Sincerely, me at 3011427-172; or 1 Director ; ,, . Off-SiteSavannah River ...

  18. Washington. DC.20585'

    Office of Legacy Management (LM)

    Alexander Williams at 301-427-1719 of my'staff. . . Enclosures' tc: Ames W: Wagoner II" : Director ' Off-SiteSavannah River Program Division Office of,Eastern Area Programs ...

  19. RES D.C.

    Broader source: Energy.gov [DOE]

    The National Center for American Indian Enterprise Development is hosting Reservation Economic Summit (RES), a four-day event that provides Native American businesses and entrepreneurs with the...

  20. RES D.C.

    Broader source: Energy.gov [DOE]

    The National Center for American Indian Enterprise Development is hosting Reservation Economic Summit (RES), a four-day event that provides Native American businesses and entrepreneurs with the tools they need to be successful.

  1. D.C.

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

    Alexander Wang, Micha Ben-Naim, Scott Carlsten, Lorenzo Venneri and Kevin Gao, and Coach, Paolo Venneri. Albuquerque Academy took second place and La Cueva High School in...

  2. DRAFT - DOE O 350.2C, Use of Management and Operating or Other Facility Management Contractor Employees for Services to DOE in the Washington, D.C. Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    The Order establishes policies and procedures for managing DOE and NNSA management and operating (M&O) contractors and other facility management contractor employees assigned to the Washington, D.C., area.

  3. Initial phase zone for phase locking to the resonance, using “main condition” of phase stability in DC-biased single-sided multipactor

    SciTech Connect (OSTI)

    Mostajeran, M., E-mail: mostajeran@yazd.ac.ir [Faculty of Physics, Yazd University, P.O. Box 89195-741, Yazd (Iran, Islamic Republic of)

    2014-05-15

    In the present work, the concept of accurate phase stability is employed to study a DC-biased single-sided multipactor. A “main condition” of phase stability was introduced in our previous studies of two-sided multipactors [M. Mostajeran, J. Instrum. 8, P04024 (2013); M. Mostajeran and M. Lamehi Rachti, Nucl. Instrum. Methods Phys. Res. A 615, 1–5 (2010)]. Using the same condition and assuming zero initial velocity for the secondary electrons, a regime of multipactors outside the resonance zones is found. The theoretical results are then verified by numerical simulation.

  4. The effect of the dc bias voltage on the x-ray bremsstrahlung and beam intensities of medium and highly charged ions of argon

    SciTech Connect (OSTI)

    Rodrigues, G.; Lakshmy, P. S.; Kanjilal, D.; Roy, A.; Baskaran, R.

    2010-02-15

    X-ray bremsstrahlung measurements from the 18 GHz High Temperature Superconducting Electron Cyclotron Resonance Ion Source, Pantechnik-Delhi Ion Source were measured as a function of negative dc bias voltage, keeping all other source operating parameters fixed and the extraction voltage in the off condition. The optimization of medium and highly charged ions of argon with similar source operating parameters is described. It is observed that the high temperature component of the electron is altered significantly with the help of bias voltage, and the electron population has to be maximized for obtaining higher current.

  5. DC current induced metal-insulator transition in epitaxial Sm{sub 0.6}Nd{sub 0.4}NiO{sub 3}/LaAlO{sub 3} thin film

    SciTech Connect (OSTI)

    Huang, Haoliang; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 ; Luo, Zhenlin Yang, Yuanjun; Yang, Mengmeng; Wang, Haibo; Hu, Sixia; Bao, Jun; National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026 ; Yun, Yu; Meng, Dechao; Lu, Yalin; Gao, Chen; CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026; National Synchrotron Radiation Laboratory and School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026

    2014-05-15

    The metal-insulator transition (MIT) in strong correlated electron materials can be induced by external perturbation in forms of thermal, electrical, optical, or magnetic fields. We report on the DC current induced MIT in epitaxial Sm{sub 0.6}Nd{sub 0.4}NiO{sub 3} (SNNO) thin film deposited by pulsed laser deposition on (001)-LaAlO{sub 3} substrate. It was found that the MIT in SNNO film not only can be triggered by thermal, but also can be induced by DC current. The T{sub MI} of SNNO film decreases from 282 K to 200 K with the DC current density increasing from 0.003 × 10{sup 9} A‱m{sup −2} to 4.9 × 10{sup 9} A‱m{sup −2}. Based on the resistivity curves measured at different temperatures, the MIT phase diagram has been successfully constructed.

  6. Group Home Energy Efficiency Retrofit for 30% Energy Savings, Washington, D.C. (Fact Sheet), Building America Case Study: Whole-House Solutions for Existing Homes, Building Technologies Office (BTO)

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

    Group Home Energy Efficiency Retrofit for 30% Energy Savings Washington, D.C. PROJECT INFORMATION Construction: Existing Type: Group Home: Sasha Bruce Youthwork, Washington, DC www.sashabruce.org Size: 4,392 ft 2 Year of construction: 1900 Date completed: 2011 Climate Zone: Mixed-humid PERFORMANCE DATA Pre-retrofit energy use: 18.9 kilowatt- hours per square foot (kWh/ft 2 ) Post-retrofit energy use: 10.6 kWh/ft 2 Percent energy savings: 44% Incremental cost of energy efficiency measures:

  7. How the “main condition” of phase stability can explain the effect of the velocity deviation of secondary electrons in DC-biased single-sided multipactors

    SciTech Connect (OSTI)

    Mostajeran, M.

    2014-11-15

    In this work, a “main condition” for phase stability has been employed to investigate the effects of the velocity deviation of the electrons in DC-biased single-sided multipactors (MPs). In a previous study [M. Mostajeran, Phys. Plasmas 21, 053108 (2014)], a stability equation was derived, where the secondary electron was assumed to have zero initial velocity and the phase deviation from the resonant phase was considered. In this work, both deviations in phase and velocity from the resonant condition are taken into account, assuming nonzero initial velocity for the secondary electrons. Using the main condition for stability, it is shown that MP discharge can rise in situations, where large velocity deviations from initial velocity and large phase deviations from resonant phase exist. This is contrary to what can be predicted on the basis of the “simple stability condition.” This result is further confirmed by numerical simulations.

  8. Recovery in dc and rf performance of off-state step-stressed AlGaN/GaN high electron mobility transistors with thermal annealing

    SciTech Connect (OSTI)

    Kim, Byung-Jae; Hwang, Ya-Hsi; Ahn, Shihyun; Zhu, Weidi; Dong, Chen; Lu, Liu; Ren, Fan; Holzworth, M. R.; Jones, Kevin S.; Pearton, Stephen J.; Smith, David J.; Kim, Jihyun; Zhang, Ming-Lan

    2015-04-13

    The recovery effects of thermal annealing on dc and rf performance of off-state step-stressed AlGaN/GaN high electron mobility transistors were investigated. After stress, reverse gate leakage current and sub-threshold swing increased and drain current on-off ratio decreased. However, these degradations were completely recovered after thermal annealing at 450?°C for 10 mins for devices stressed either once or twice. The trap densities, which were estimated by temperature-dependent drain-current sub-threshold swing measurements, increased after off-state step-stress and were reduced after subsequent thermal annealing. In addition, the small signal rf characteristics of stressed devices were completely recovered after thermal annealing.

  9. Request to Cancel Department of Energy (DOE) Order 350.2B, Use of Management and Operating or other Facility Management Contractor Employees for Services to DOE in the Washington D.C. Area

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2015-11-23

    DOE is canceling this directive and its associated DOE-wide mandated requirements in recognition of Departmental management and oversight improvements of Headquarters sponsored assignments to the Washington D.C. area and opting to implement as program specific risk based management approach to these actions.

  10. Request to Cancel Department of Energy (DOE) Order, Use of Management and Operating or other Facility Management Contractor Employees for Services to DOE in the Washington D.C. Area, dated May 31, 2011

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    DOE is canceling this directive and its associated DOE-wide mandated requirements in recognition of Departmental management and oversight improvements of Headquarters sponsored assignments to the Washington D.C. area and opting to implement as program specific risk based management approach to these actions.

  11. Q&A: FORGE-ing Ahead to Clean, Low-Cost Geothermal Energy | Department...

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

    ... to move on to phase two, which would include permitting and site characterization work. ... Additional research planned within FORGE may include innovative drilling techniques, well ...

  12. Computer systems and methods for visualizStolte; Chris ing data

    DOE Patents [OSTI]

    Stolte, Chris; Hanrahan, Patrick

    2013-01-29

    A method for forming a visual plot using a hierarchical structure of a dataset. The dataset comprises a measure and a dimension. The dimension consists of a plurality of levels. The plurality of levels form a dimension hierarchy. The visual plot is constructed based on a specification. A first level from the plurality of levels is represented by a first component of the visual plot. A second level from the plurality of levels is represented by a second component of the visual plot. The dataset is queried to retrieve data in accordance with the specification. The data includes all or a portion of the dimension and all or a portion of the measure. The visual plot is populated with the retrieved data in accordance with the specification.

  13. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    ... WAT SON -DU HRIN G EVERGREEN KELLY HILL RED BRUSH WEILER SVILLE MEAD VI LLE LAM AR TINE ROSS LEET SDALE RPD-R ICHLAND -4 CROWS RUN WAT TSVILLE S GLADE R UN WIN ESBU RG HAT CH CORN ...

  14. Protective interior wall and attach8ing means for a fusion reactor vacuum vessel

    DOE Patents [OSTI]

    Phelps, Richard D.; Upham, Gerald A.; Anderson, Paul M.

    1988-01-01

    An array of connected plates mounted on the inside wall of the vacuum vessel of a magnetic confinement reactor in order to provide a protective surface for energy deposition inside the vessel. All fasteners are concealed and protected beneath the plates, while the plates themselves share common mounting points. The entire array is installed with torqued nuts on threaded studs; provision also exists for thermal expansion by mounting each plate with two of its four mounts captured in an oversize grooved spool. A spool-washer mounting hardware allows one edge of a protective plate to be torqued while the other side remains loose, by simply inverting the spool-washer hardware.

  15. OGLE-ing the Magellanic system: stellar populations in the Magellanic Bridge

    SciTech Connect (OSTI)

    Skowron, D. M.; Jacyszyn, A. M.; Udalski, A.; Szyma?ski, M. K.; Skowron, J.; Poleski, R.; Koz?owski, S.; Kubiak, M.; Pietrzy?ski, G.; Soszy?ski, I.; Mróz, P.; Pietrukowicz, P.; Ulaczyk, K.; Wyrzykowski, ?.

    2014-11-10

    We report the discovery of a young stellar bridge that forms a continuous connection between the Magellanic Clouds. This finding is based on number density maps for stellar populations found in data gathered by OGLE-IV that fully cover over 270 deg{sup 2} of the sky in the Magellanic Bridge area. This is the most extensive optical survey of this region to date. We find that the young population is present mainly in the western half of the MBR, which, together with the newly discovered young population in the eastern Bridge, form a continuous stream of stars connecting both galaxies along ? ? –73.5 deg. The young population distribution is clumped, with one of the major densities close to the SMC and the other fairly isolated and located approximately mid-way between the Clouds, which we call the OGLE island. These overdensities are well matched by H I surface density contours, although the newly found young population in the eastern Bridge is offset by ?2 deg north from the highest H I density contour. We observe a continuity of red clump stars between the Magellanic Clouds which represent an intermediate-age population. Red clump stars are present mainly in the southern and central parts of the Magellanic Bridge, below its gaseous part, and their presence is reflected by a strong deviation from the radial density profiles of the two galaxies. This may indicate either a tidal stream of stars, or that the stellar halos of the two galaxies overlap. On the other hand, we do not observe such an overlap within an intermediate-age population represented by the top of the red giant branch and the asymptotic giant branch stars. We also see only minor mixing of the old populations of the Clouds in the southern part of the Bridge, represented by the lowest part of the red giant branch.

  16. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    Liquids Reserve Class No 2001 liquids reserves 0.1 - 10 Mbbl 10.1 - 100 Mbbl 100.1 - 1,000 Mbbl 1,000.1 - 10,000 Mbbl Appalachian Basin Boundary C a n a d a U S A OH PA MI NY Lake ...

  17. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    Gas Reserve Class No 2001 gas reserves 0.1 - 10 MMCF 10.1 - 100 MMCF 100.1 - 1,000 MMCF 1,000.1 - 10,000 MMCF 10,000.1 - 100,000 MMCF > 100,000 MMCF Appalachian Basin Boundary C a ...

  18. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    MCKEESPORT COR AOPOLIS-MOON REDHAW ST. CLAIR SC ROGGSFIELD FRANKLIN -OAK FOREST RIMERSBURG RENNERD AL E GREENVILL E PAT MOS CRABTR EE BLAC K ASH ROYALT ON N BAKERSTOWN QUEEN ROU GH RUN LUCAS BLAC K H ILL CRESTON WAT TSVILLE WADSWORTH -NORT H OAKLAN D HOM EWORT H UNIT Y ESSELBRUN ALAMED A PAR K-CROOKED RU CHERRY GROVE FRENC HTOWN ST EWART RUN MILL C REEK GLENF IELD-MOU NT NEBO HICKORY E HARRISVILLE E LEST ER GRIGGS CORNERS EN GLAN D WEST VIL LE LAKE BAILEY LAKE OAKFORD BR UNSWICK N HOR ACE

  19. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    Gas Reserve Class No 2001 gas reserves 0.1 - 10 MMCF 10.1 - 100 MMCF 100.1 - 1,000 MMCF 1,000.1 - 10,000 MMCF 10,000.1 - 100,000 MMCF > 100,000 MMCF Appalachian Basin Boundary C a n a d a U S A OH PA MI NY Lake Erie Lake St. Claire Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Basin Fields (Mbbl) (MMcf) (Mbbl) Appalachian 3354 79,141 9,550,156 1,670,834 2001 Proved Reserves for Entire Applachian Basin WV Appalachian Basin, OH-PA (Panel 2 of 7) Oil and Gas Fields By

  20. CANTON LAKESHORE CANTON E BEST CON NEAUT GIDD INGS EAST N ELLSWORT

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

    Liquids Reserve Class No 2001 liquids reserves 0.1 - 10 Mbbl 10.1 - 100 Mbbl 100.1 - 1,000 Mbbl 1,000.1 - 10,000 Mbbl Appalachian Basin Boundary C a n a d a U S A OH PA MI NY Lake Erie Lake St. Claire Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Basin Fields (Mbbl) (MMcf) (Mbbl) Appalachian 3354 79,141 9,550,156 1,670,834 2001 Proved Reserves for Entire Applachian Basin WV Appalachian Basin, OH-PA (Panel 2 of 7) Oil and Gas Fields By 2001 Liquids

  1. Influence of a Weak Field of Pulsed DC Electricity on the Behavior and Incidence of Injury in Adult Steelhead and Pacific Lamprey, Final Report.

    SciTech Connect (OSTI)

    Mesa, Matthew

    2009-02-13

    Predation by pinnipeds, such as California sea lions Zalophus californianus, Pacific harbor seals Phoca vitulina, and Stellar sea lions Eumetopias jubatus on adult Pacific salmon Oncorhynchus spp in the lower Columbia River has become a serious concern for fishery managers trying to conserve and restore runs of threatened and endangered fish. As a result, Smith-Root, Incorporated (SRI; Vancouver, Washington), manufacturers of electrofishing and closely-related equipment, proposed a project to evaluate the potential of an electrical barrier to deter marine mammals and reduce the amount of predation on adult salmonids (SRI 2007). The objectives of their work were to develop, deploy, and evaluate a passive, integrated sonar and electric barrier that would selectively inhibit the upstream movements of marine mammals and reduce predation, but would not injure pinnipeds or impact anadromous fish migrations. However, before such a device could be deployed in the field, concerns by regional fishery managers about the potential effects of such a device on the migratory behavior of Pacific salmon, steelhead O. mykiss, Pacific lampreys Entoshpenus tridentata, and white sturgeon Acipenser transmontanus, needed to be addressed. In this report, we describe the results of laboratory research designed to evaluate the effects of prototype electric barriers on adult steelhead and Pacific lampreys. The effects of electricity on fish have been widely studied and include injury or death (e.g., Sharber and Carothers 1988; Dwyer et al. 2001; Snyder 2003), physiological dysfunction (e.g., Schreck et al. 1976; Mesa and Schreck 1989), and altered behavior (Mesa and Schreck 1989). Much of this work was done to investigate the effects of electrofishing on fish in the wild. Because electrofishing operations would always use more severe electrical settings than those proposed for the pinniped barrier, results from these studies are probably not relevant to the work proposed by SRI. Field electrofishing operations typically use high voltage and amperage settings and a variety of waveforms, pulse widths (PW), and pulse frequencies (PF), depending on conditions and target species. For example, when backpack electrofishing for trout in a small stream, one might use settings such as 500 V pulsed DC, a PW of 1 ms, and a PF of 60 Hz. In contrast, the electrical barrier proposed by SRI will produce electrical conditions significantly lower than those used in electrofishing, particularly for PW and PF (e.g., PW ranging from 300-1,000 {micro}s and PF from 2-3 Hz). Further, voltage gradients (in V/cm) are predicted to be lower in the electric barrier than those produced during typical electrofishing. Although the relatively weak, pulsed DC electric fields to be produced by the barrier may be effective at deterring pinnipeds, little, if anything, is known about the effects of such low intensity electrical fields on fish behavior. For this research, we evaluated the effects of weak, pulsed DC electric currents on the behavior of adult steelhead and Pacific lamprey and the incidence of injury in steelhead only. In a series of laboratory experiments, we: (1) documented the rate of passage of fish over miniature, prototype electric barriers when they were on and off; (2) determined some electric thresholds beyond which fish would not pass over the barrier; and (3) assessed the incidence and severity of injury in steelhead exposed to relatively severe electrical conditions. The results of this study should be useful for making decisions about whether to install electrical barriers in the lower Columbia River, or elsewhere, to reduce predation on upstream migrating salmonids and other fishes by marine pinnipeds.

  2. Nanosecond pulsed electric fields (nsPEFs) low cost generator design using power MOSFET and Cockcroft-Walton multiplier circuit as high voltage DC source

    SciTech Connect (OSTI)

    Sulaeman, M. Y.; Widita, R.

    2014-09-30

    Purpose: Non-ionizing radiation therapy for cancer using pulsed electric field with high intensity field has become an interesting field new research topic. A new method using nanosecond pulsed electric fields (nsPEFs) offers a novel means to treat cancer. Not like the conventional electroporation, nsPEFs able to create nanopores in all membranes of the cell, including membrane in cell organelles, like mitochondria and nucleus. NsPEFs will promote cell death in several cell types, including cancer cell by apoptosis mechanism. NsPEFs will use pulse with intensity of electric field higher than conventional electroporation, between 20–100 kV/cm and with shorter duration of pulse than conventional electroporation. NsPEFs requires a generator to produce high voltage pulse and to achieve high intensity electric field with proper pulse width. However, manufacturing cost for creating generator that generates a high voltage with short duration for nsPEFs purposes is highly expensive. Hence, the aim of this research is to obtain the low cost generator design that is able to produce a high voltage pulse with nanosecond width and will be used for nsPEFs purposes. Method: Cockcroft-Walton multiplier circuit will boost the input of 220 volt AC into high voltage DC around 1500 volt and it will be combined by a series of power MOSFET as a fast switch to obtain a high voltage with nanosecond pulse width. The motivation using Cockcroft-Walton multiplier is to acquire a low-cost high voltage DC generator; it will use capacitors and diodes arranged like a step. Power MOSFET connected in series is used as voltage divider to share the high voltage in order not to damage them. Results: This design is expected to acquire a low-cost generator that can achieve the high voltage pulse in amount of ?1.5 kV with falltime 3 ns and risetime 15 ns into a 50? load that will be used for nsPEFs purposes. Further detailed on the circuit design will be explained at presentation.

  3. Improving the performance of stainless-steel DC high voltage photoelectron gun cathode electrodes via gas conditioning with helium or krypton

    SciTech Connect (OSTI)

    Bastaninejad, Mahzad; Elmustafa, Abdelmageed; Forman, Eric I.; Clark, James; Covert, Steven R.; Grames, Joseph M.; Hansknecht, John C.; Hernandez-Garcia, Carlos; Poelker, Bernard; Suleiman, Riad S.

    2014-10-01

    Gas conditioning was shown to eliminate field emission from cathode electrodes used inside DC high voltage photoelectron guns, thus providing a reliable means to operate photoguns at higher voltages and field strengths. Measurements and simulation results indicate that gas conditioning eliminates field emission from cathode electrodes via two mechanisms: sputtering and implantation, with the benefits of implantation reversed by heating the electrode. We have studied five stainless steel electrodes (304L and 316LN) that were polished to approximately 20 nm surface roughness using diamond grit, and evaluated inside a high voltage apparatus to determine the onset of field emission as a function of voltage and field strength. The field emission characteristics of each electrode varied significantly upon the initial application of voltage but improved to nearly the same level after gas conditioning using either helium or krypton, exhibiting less than 10 pA field emission at ?225 kV bias voltage with a 50 mm cathode/anode gap, corresponding to a field strength of ~13 MV/m. Field emission could be reduced with either gas, but there were conditions related to gas choice, voltage and field strength that were more favorable than others.

  4. Multiple DC, single AC converter with a switched DC transformer

    DOE Patents [OSTI]

    Donnelly, M.K.; Hammerstrom, D.J.

    1997-05-20

    The invention is an improvement of the PASC inverter, wherein the improvements include the reduction from two shorting gates per transformer to one shorting gate per transformer and replacement of active control of the shorting gate with passive control of the shorting gate. Further advantages are obtained through the use of anti-parallel gate sets. 14 figs.

  5. Multiple DC, single AC converter with a switched DC transformer

    DOE Patents [OSTI]

    Donnelly, Matthew K.; Hammerstrom, Donald J.

    1997-01-01

    The invention is an improvement of the PASC inverter, wherein the improvements include the reduction from two shorting gates per transformer to one shorting gate per transformer and replacement of active control of the shorting gate with passive control of the shorting gate. Further advantages are obtained through the use of anti-parallel gate sets.

  6. Washington, DC~ZO585

    Office of Legacy Management (LM)

    W. Alexander Williams (301-427T1719) of my staff. Enclosures' jamesWWagoner II Director Off-SiteSavannah River Division Office.of Eastern, Area Programs Office of Environmental ...

  7. Current Obsession: AC/DC

    Broader source: Energy.gov [DOE]

    Though humans have been harnessing water to perform work for thousands of years, the evolution of modern hydropower began in the late 1800’s–coincidentally at the same time that Thomas Edison and Nikola Tesla were embroiled in a battle now known as the War of the Currents.

  8. American Recovery & Reinvestment Act Newsletter - Issue 24

    Office of Environmental Management (EM)

    Moving 2.4 million tons of uranium mill tail- ings away from the Colorado River is only one of the activi- ties the Moab Uranium Mill Tailings Remedial Action Project accomplished with $108 million from the American Recovery and Reinvestment Act. The Moab Project has achieved numerous accomplishments in Recovery Act-funded efforts to help move the tailings safely and efficiently to a permanent disposal facility near Crescent Junction, 30 miles north of the Moab site. The Recovery Act funded the

  9. Department of Energy Releases New ‘Billion-Ton’ Study Highlighting Opportunities for Growth in Bioenergy Resources

    Broader source: Energy.gov [DOE]

    Washington, D.C. – The U.S. Department of Energy today released a report – 2011 U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry – detailing U.S. biomass feedstock...

  10. 10,651,176 Metric Tons of CO2 Injected as of September 16, 2015...

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

    Products has successfully retrofitted its two Port Arthur SMRs with a vacuum swing adsorption system to separate the CO2 from the process gas stream, followed by compression and...

  11. NNSA Eliminates 100 Metric Tons Of Weapons-Grade Nuclear Material...

    National Nuclear Security Administration (NNSA)

    secure and less expensive nuclear weapons complex. ... sale of LEU for safe use in power and research reactors around the world. ... NNSA maintains and enhances the safety, security, ...

  12. Lubricants Market to Record 44,165.11 Kilo Tons Volume by 2020...

    Open Energy Info (EERE)

    over 50% of the global market share. Automotive oils sector is further segmented into hydraulic oil, engine oil, and gear oil. Improving GDP in developing nations such as India and...

  13. DOE to Remove 200 Metric Tons of Highly Enriched Uranium from...

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

    Will Be Redirected to Naval Reactors, Down-blended or Used for Space Programs WASHINGTON, ... Approximately 20 MT will be reserved for space and research reactors that currently use ...

  14. U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproduct...

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

    ... sorghum as affected by low and normal input techniques. ... Richardson J. (eds.) 2001. Poplar Culture in North America. ... Plant Cell & Environment 29(4):720-728. Farnham D. 2001. ...

  15. 6 Million Tons of Mill Tailings Removed From DOE Moab Project Site |

    Energy Savers [EERE]

    of Energy 6 Energy Saving Tips for Commercial Refrigerators and Freezers 6 Energy Saving Tips for Commercial Refrigerators and Freezers February 28, 2014 - 6:11pm Addthis Dale Linkous carries pizza out of the walk-in freezer in the kitchen at the National Renewable Energy Laboratory in Golden, Colorado. The Energy Department <a href="http://energy.gov/articles/new-energy-efficiency-standards-commercial-refrigeration-equipment-cut-businesses-energy">announced new energy

  16. Y-12's rough roads smoothed over with 23,000 tons of recycled...

    National Nuclear Security Administration (NNSA)

    Read more about it. Dec 29, 2015 at 1:00 am Blog archive April 2016 (12) March 2016 (28) February 2016 (21) January 2016 (21) December 2015 (18) November 2015 (11) October 2015 ...

  17. A ton-scale bolometric detector for the search for neutrinoless double beta decay

    SciTech Connect (OSTI)

    Pedretti, M. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States)

    2009-12-16

    After an introduction on neutrinoless double beta decay physics, a description of CUORE and CUORICINO experiments, detectors and results are reported. The actual efforts and next steps of the CUORE Project, required to probe the inverted hierarchy region of the neutrino effective Majorana mass, are also described.

  18. 1,153-ton Waste Vault Removed from 300 Area - Vault held waste...

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

    Richland Operations Office announced the removal of a massive concrete vault that once held two 15,000-gallon stainless steel tanks used to collect highly contaminated waste...

  19. DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone...

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

    at the Cranfield site in Southwestern Mississippi. It is led by the Southeast Regional Carbon Sequestration Partnership (SECARB), one of seven members of the Regional Carbon...

  20. DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it...

    National Nuclear Security Administration (NNSA)

    Administration review of non-proliferation programs, including alternative technologies to dispose of surplus plutonium to meet the non-proliferation goals agreed to by the United ...

  1. U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through...

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

    Through the Department's Better Buildings, Better Plants Program (Better Plants), over 1,750 plants across the United States have saved about 1 billion in energy costs and ...

  2. 11,970,363 Metric Tons of CO2 Injected as of February 23, 2016...

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

    ... Air Products has successfully retrofitted its two Port Arthur SMRs with a vacuum swing adsorption system to separate the CO2 from the process gas stream, followed by compression ...

  3. 10,422,136 Metric Tons of CO2 Injected as of August 21, 2015...

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

    The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed below. Regional Carbon...

  4. Removal of 1,082-Ton Reactor Among Richland Operations Office’s 2014 Accomplishments

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – Workers with EM’s Richland Operations Office and its contractors made progress this year in several areas of Hanford site cleanup that helped protect employees, the public, environment, and Columbia River.

  5. U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproduct...

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

    for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a ... Program Peer Review Sustainability Platform WEBINAR: A CHANGING MARKET FOR BIOFUELS ...

  6. 1984 Virginia coal mine directory: producers of 100,000 tons or more

    SciTech Connect (OSTI)

    Hibbard, W.R. Jr.

    1985-01-01

    The purpose of this directory is to identify major Virginia coal sources for the use of prospective buyers and other interested parties. It is divided into lists: (1) 1984 Virginia coal production, (2) eighty-five largest companies identified by MSHA, (3) alphabetical listing of Virginia coal mines, (4) alphabetical listing of coal mines by county, and (5) coal mines rated by production figures. The rating order for the last list includes factors affecting productivity such as type of mine, number of injuries, seam thickness, total production, and average employment.

  7. SO2907, A Putative TonB-dependent Receptor, Is Involved in Dissimilato...

    Office of Scientific and Technical Information (OSTI)

    Many of the biological components that interact with the various iron forms are proposed to be localized in these membrane fractions. To identify the iron-binding proteins acting ...

  8. Support EM LA Airport Landfill Cover Project by providing 40000 tons of soil

    Broader source: Energy.gov [DOE]

    The purpose of this task order (TO) is to support the EM-LA Field Office in replacing the cover at the Los Alamos County Airport Landfill. The new cover design is an evapotranspiration (ET) cover.

  9. 11,970,363 Metric Tons of CO2 Injected as of February 23, 2016...

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

    The network of seven RCSPs are currently conducting field tests which involve integrated system testing and validation of geologic storage, simulation and risk assessment, and ...

  10. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    End Use for Non-Mall Buildings, 2003 Total Major Fuel Consumption (trillion Btu) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration...

  11. Released: September, 2008

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

    Consumption (trillion Btu)" ,"Total ","Space Heat- ing","Cool- ing","Venti- lation","Water Heat- ing","Light- ing","Cook- ing","Refrig- eration","Office Equip- ment","Com-...

  12. Revised: December, 2008

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

    (thousand Btusquare foot) " ,"Total ","Space Heat- ing","Cool- ing","Venti- lation","Water Heat- ing","Light- ing","Cook- ing","Refrig- eration","Office Equip- ment","Com-...

  13. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    Energy Intensity (kWhsquare foot) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  14. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    Electricity Consumption (billion kWh) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  15. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  16. DOE's Carbon Utilization and Storage Atlas Estimates at Least 2,400 Billion

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

    Metric Tons of U.S. CO2 Storage Resource | Department of Energy Carbon Utilization and Storage Atlas Estimates at Least 2,400 Billion Metric Tons of U.S. CO2 Storage Resource DOE's Carbon Utilization and Storage Atlas Estimates at Least 2,400 Billion Metric Tons of U.S. CO2 Storage Resource December 19, 2012 - 12:00pm Addthis Washington, DC - The United States has at least 2,400 billion metric tons of possible carbon dioxide (CO2) storage resource in saline formations, oil and gas

  17. Study of optical properties of asymmetric bipolar pulse DC magnetron sputtered Ta{sub 2}O{sub 5} thin film as a function of oxygen content in deposition ambient

    SciTech Connect (OSTI)

    Haque, S. Maidul Shinde, D. D. Misal, J. S.; Bhattacharyya, D.; Sahoo, N. K.

    2014-04-24

    Tantalum penta-oxide thin films have been deposited by reactive sputtering technique using asymmetric bipolar pulsed DC source at various oxygen percentage viz. 0 to 50 %. The optical properties of the films have been studied by spectroscopic ellipsometry measurements. It has been observed that compact films with low void fraction, high refractive index and band gap can be obtained by the above technique with oxygen percentage in the range of 30–40%. The films deposited with zero or very low oxygen content have high deposition rate and yield metal rich films with large voids, defects, low band gap and high refractive index. Similarly films deposited with >40% oxygen content again contain voids and defects due to the presence of large amount of gas molecules in the sputtering ambient.

  18. B1487(01)Quarks FM.i-xvi

    National Nuclear Security Administration (NNSA)

    Committee on the Physics of the Universe Board on Physics and Astronomy Division on Engineering and Physical Sciences THE NATIONAL ACADEMIES PRESS Washington, D.C. www.nap.edu Quarks Eleven Science Questions for the New Century with the Cosmos Connecting THE NATIONAL ACADEMIES PRESS 500 Fifth Street, N.W. Washington, DC 20001 NOTICE: The project that is the subject of this report was approved by the Govern- ing Board of the National Research Council, whose members are drawn from the councils of

  19. B61-12 Life Extension Program Radar Drop Tests Completed Successfully |

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

    the Physics of the Universe Board on Physics and Astronomy Division on Engineering and Physical Sciences THE NATIONAL ACADEMIES PRESS Washington, D.C. www.nap.edu Quarks Eleven Science Questions for the New Century with the Cosmos Connecting THE NATIONAL ACADEMIES PRESS 500 Fifth Street, N.W. Washington, DC 20001 NOTICE: The project that is the subject of this report was approved by the Govern- ing Board of the National Research Council, whose members are drawn from the councils of the National

  20. U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    Figure 1. Coal production by coal-producing region, 2010 (million short tons and percent change from 2009) U.S. total: 1,085.3 million short tons (-1.0%) Figure 1. Coal Production by Coal-Producing Region, 2010 Source: U.S. Energy Information Administration, Quarterly Coal Report, October-December 2010, DOE/EIA-0121(2010/Q4) (Washington, DC, April 2011). Regional totals do not include refuse recovery.

  1. National Press Club Washington, D.C.

    Office of Environmental Management (EM)

    ... Chad Holliday Chair of B of A, former Chair and CEO of DuPont Jeff Immelt Chair and CEO of GE Tim Solso Chair and CEO, Cummins Inc. 16 2010 Federal Budget is 3.6 Trillion. ...

  2. Washington, D.C. - Local Information | NREL

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

    Department of Energy Washington School District Makes the Grade in Energy Efficiency Washington School District Makes the Grade in Energy Efficiency September 2, 2015 - 10:01am Addthis As part of the Better Buildings Challenge, Camas School District in Washington not only surpassed its energy efficiency goals, but did so five years early. | Photo courtesy of Camas School District. As part of the Better Buildings Challenge, Camas School District in Washington not only surpassed its energy

  3. Ch 5 DC FN East Region

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

    VOLUME 3 - CHAPTER 5 This page intentionally left blank Nationwide Public Safety Broadband Network Draft Programmatic Environmental Impact Statement for the Eastern United States April 2016 First Responder Network Authority Amanda Goebel Pereira, AICP NEPA Coordinator First Responder Network Authority U.S. Department of Commerce 12201 Sunrise Valley Dr. M/S 243 Reston, VA 20192 Cooperating Agencies Federal Communications Commission General Services Administration U.S. Department of

  4. Pacific DC Intertie Upgrade Project Status Update

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

    T I O N Pre-Decisional. For Discussion Purposes Only. PDCI Upgrade Project Replace aging Celilo 4 converter terminal with a new 2 converter terminal rated 560kV and 3410A...

  5. Dc's blog | OpenEI Community

    Open Energy Info (EERE)

    - 13:42 How cleantech-as-a-service will drive renewable energy adoption 2015 adoption Big Data clean tech clean-tech cleantech cleantech forum cleantech-as-a-service cloud...

  6. DC Survey 2013 | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Apply for Our Jobs Our Jobs Working at NNSA Blog Home About Us Our Programs Emergency Response Responding to Emergencies Consequence Management Aerial Measuring System ...

  7. Glass Ceramic Dielectrics for DC Bus Capacitors

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  8. Glass Dielectrics for DC Bus Capacitors

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  9. Glass Ceramic Dielectrics for DC Bus Capacitors

    Broader source: Energy.gov [DOE]

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

  10. User:Dc | Open Energy Information

    Open Energy Info (EERE)

    Name Dara Cunningham Edits 12 NREL Human Factors Engineer PhD Cognitive Science and Design & Planning dara.cunningham@nrel.gov Retrieved from "http:en.openei.org...

  11. Department.,of Energy Washington; DC'

    Office of Legacy Management (LM)

    MA R. Halliiy; Stat; of Massachusetts 1 dames W. Wagoner.11 Director . ,, Off-SiteSavannah River ProgramJDivision' Dffice of EasternArea.Programs 'Office of.Environmental ...

  12. LGBT Pride Month--- DC Headquarters Office

    Broader source: Energy.gov [DOE]

    Join the Department’s celebration on Thursday, June 19, 2014, with speakers including: U. S. Representative Mark Takano, California, First openly gay person of color elected to Congress. Rob Smith, Openly gay Iraq war veteran, journalist, and author of Closets, Combat and Coming Out: Coming Of Age As A Gay Man In The “Don’t Ask, Don’t Tell” Army.

  13. EA-327-A DC Energy.pdf

    Energy Savers [EERE]

  14. Recovery Act State Memos Washington, DC

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

    ... This project is upgrading 29 high-priority substations, ... on foreign oil and revitalize domestic manufacturing. ... The funds are being used to deploy 150 heavy- duty hybrid ...

  15. ASC-DC-HandOut08.pdf

    National Nuclear Security Administration (NNSA)

  16. ARQ.3.2002.dc/FINAL

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

    quarter 2002 Nuclear Materials Technology Division Mail Stop E500 Los Alamos, New Mexico 87545 LALP-02-061 Nonprofit organization US Postage Albuquerque, NM Permit No. 532 PAID Plutonium-based superconductor Los Alamos National Laboratory Researchers grow single crystals and discover unexpected superconductivity in a plutonium compound N u c l e a r M a t e r i a l s R e s e a r c h a n d T e c h n o l o g y Nuclear Materials Technology/Los Alamos National Laboratory Actinide Research Quarterly

  17. Employee Women's History Month Celebration (DC)

    Broader source: Energy.gov [DOE]

    Celebrate Women's History Month with the Department of Energy headquarters, and hear from remarkable game-changing women and leading DOE engagement programs.

  18. Preliminary design report: Babcock and Wilcox BR-100 100-ton rail/barge spent fuel shipping cask

    SciTech Connect (OSTI)

    None

    1990-02-01

    The purpose of this document is to provide information on burnup credit as applied to the preliminary design of the BR-100 shipping cask. There is a brief description of the preliminary basket design and the features used to maintain a critically safe system. Following the basket description is a discussion of various criticality analyses used to evaluate burnup credit. The results from these analyses are then reviewed in the perspective of fuel burnups expected to be shipped to either the final repository or a Monitored Retrievable Storage (MRS) facility. The hurdles to employing burnup credit in the certification of any cask are then outlines and reviewed. the last section gives conclusions reached as to burnup credit for the BR-100 cask, based on our analyses and experience. All information in this study refers to the cask configured to transport PWR fuel. Boiling Water Reactor (BWR) fuel satisfies the criticality requirements so that burnup credit is not needed. All calculations generated in the preparation of this report were based upon the preliminary design which will be optimized during the final design. 8 refs., 19 figs., 16 tabs.

  19. Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply

    Broader source: Energy.gov [DOE]

    The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30% or more of the country's present petroleum consumption.

  20. Helium-Based Soundwave Chiller: Trillium: A Helium-Based Sonic Chiller- Tons of Freezing with 0 GWP Refrigerants

    SciTech Connect (OSTI)

    2010-09-01

    BEETIT Project: Penn State is designing a freezer that substitutes the use of sound waves and environmentally benign refrigerant for synthetic refrigerants found in conventional freezers. Called a thermoacoustic chiller, the technology is based on the fact that the pressure oscillations in a sound wave result in temperature changes. Areas of higher pressure raise temperatures and areas of low pressure decrease temperatures. By carefully arranging a series of heat exchangers in a sound field, the chiller is able to isolate the hot and cold regions of the sound waves. Penn State’s chiller uses helium gas to replace synthetic refrigerants. Because helium does not burn, explode or combine with other chemicals, it is an environmentally-friendly alternative to other polluting refrigerants. Penn State is working to apply this technology on a large scale.

  1. Final Technical Report for DUSEL Research and Development on Sub-Kelvin Germanium Detectors for Ton Scale Dark Matter Search

    SciTech Connect (OSTI)

    Prof. Blas Cabrera

    2012-09-10

    We have supported one graduate student and a small percentage of fabrication staff on $135k per year for three years plus one no cost extension year on this DUSEL R&D grant. � There were three themes within our research program: (1) how to improve the radial sensitivity for single sided phonon readout with four equal area sensors of which three form a central circle and fourth a surrounding ring; (2) how to instrument double sided phonon readouts which will give us better surface event rejection and increased fiducial volume for future CDMS style detectors; and (3) can we manufacture much larger Ge detectors using six inch diameter material which is not suitable for standard gamma ray spectroscopy.

  2. Advanced Hybrid Propulsion and Energy Management System for High Efficiency, Off Highway, 240 Ton Class, Diesel Electric Haul Trucks

    SciTech Connect (OSTI)

    Richter, Tim; Slezak, Lee; Johnson, Chris; Young, Henry; Funcannon, Dan

    2008-12-31

    The objective of this project is to reduce the fuel consumption of off-highway vehicles, specifically large tonnage mine haul trucks. A hybrid energy storage and management system will be added to a conventional diesel-electric truck that will allow capture of braking energy normally dissipated in grid resistors as heat. The captured energy will be used during acceleration and motoring, reducing the diesel engine load, thus conserving fuel. The project will work towards a system validation of the hybrid system by first selecting an energy storage subsystem and energy management subsystem. Laboratory testing at a subscale level will evaluate these selections and then a full-scale laboratory test will be performed. After the subsystems have been proven at the full-scale lab, equipment will be mounted on a mine haul truck and integrated with the vehicle systems. The integrated hybrid components will be exercised to show functionality, capability, and fuel economy impacts in a mine setting.

  3. Hybrid 240 Ton Off Highway Haul Truck: Quarterly Technical Status Report 19, DOE/AL68080-TSR19

    SciTech Connect (OSTI)

    Tim Richter

    2007-06-30

    This nineteenth quarterly status report for the Hybrid Off Highway Vehicle (OHV) project, DOE Award DE-FC04-02AL68080 presents the project status at the end of June 2007, and covers activities in the nineteenth project quarter, April 2007 – June 2007.

  4. Effect of CNG start-gasoline run on emissions from a 3/4 ton pick-up truck

    SciTech Connect (OSTI)

    Springer, K.J.; Smith, L.R.; Dickinson, A.G.

    1994-10-01

    This paper describes experiments to determine the effect on exhaust emissions of starting on compressed natural gas (CNG) and then switching to gasoline once the catalyst reaches operating temperature. Carbon monoxide, oxides of nitrogen, and detailed exhaust hydrocarbon speciation data were obtained for dedicated CNG, then unleaded gasoline, and finally CNG start-gasoline run using the Federal Test Procedure at 24{degree}C and at -7{degree}C. The result was a reduction in emissions from the gasoline baseline, especially at -7{degree}C. It was estimated that CNG start - gasoline run resulted in a 71 percent reduction in potential ozone formation per mile. 3 refs., 6 figs., 11 tabs.

  5. Effect of CNG start - gasoline run on emissions from a 3/4 ton pick-up truck

    SciTech Connect (OSTI)

    Springer, K.J.; Smith, L.R.; Dickinson, A.G.

    1994-10-01

    This paper describes experiments to determine the effect on exhaust emissions of starting on compressed natural gas (CNG) and then switching to gasoline once the catalyst reaches operating temperature. Carbon monoxide, oxides of nitrogen, and detailed exhaust hydrocarbon speciation data were obtained for dedicated CNG, then unleaded gasoline, and finally CNG start - gasoline run using the Federal Test Procedure at 24{degree}C and at -7{degree}C. The results was a reductiopn in emissions from the gasoline baseline, especially at -7{degree}C. It was estimated that CNG start - gasoline run resulted in a 71 percent reduction in potential ozone formation per mile. 3 refs., 6 figs., 11 tabs.

  6. Biomass as feedstock for a bioenergy and bioproducts industry: The technical feasibility of a billion-ton annual supply

    SciTech Connect (OSTI)

    Perlack, Robert D.; Wright, Lynn L.; Turhollow, Anthony F.; Graham, Robin L.; Stokes, Bryce J.; Erbach, Donald C.

    2005-04-01

    The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30% or more of the country's present petroleum consumption.

  7. Integrated DC-DC Conversion for Energy-Efficient Multicore Microprocessors

    SciTech Connect (OSTI)

    2011-05-31

    Fact sheet about new power converters that provide versatility in optimizing energy usage for processor chips

  8. Integrated Solar Power Converters: Wafer-Level Sub-Module Integrated DC/DC Converter

    SciTech Connect (OSTI)

    2012-02-09

    Solar ADEPT Project: CU-Boulder is developing advanced power conversion components that can be integrated into individual solar panels to improve energy yields. The solar energy that is absorbed and collected by a solar panel is converted into useable energy for the grid through an electronic component called an inverter. Many large, conventional solar energy systems use one, central inverter to convert energy. CU-Boulder is integrating smaller, microinverters into individual solar panels to improve the efficiency of energy collection. The University’s microinverters rely on electrical components that direct energy at high speeds and ensure that minimal energy is lost during the conversion process—improving the overall efficiency of the power conversion process. CU-Boulder is designing its power conversion devices for use on any type of solar panel.

  9. Multiphase soft switched DC/DC converter and active control technique...

    Office of Scientific and Technical Information (OSTI)

    An outer loop control circuit that reduces ripple in a voltage reference has a first resistor connected in series with a second resistor connected in series with a first capacitor ...

  10. Multiphase soft switched DC/DC converter and active control technique...

    Office of Scientific and Technical Information (OSTI)

    active control technique for fuel cell ripple current elimination Citation Details In-Document Search Title: Multiphase soft switched DCDC converter and active control technique ...

  11. Demand for Food for People in Need Remains High Throughout the Year

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM and its field sites donated 53,630 pounds — or 27 tons — of non-perishable items to a food drive by federal workers to help feed families across the country in 2013.

  12. RIFLE TO SAN JUAN

    Office of Environmental Management (EM)

    Di r ec to r Wes t e r n A r e a - E l ec tric Ru r al E l ec t rifica tio n Adminis t r a tio n 14 th & Inde p e nde nce Ave., S.W. Washi n g ton, D.C. 20250 Tele pho n e:...

  13. Evaluation of the carbon content of aerosols from the burn- ing of biomass in the Brazilian Amazon using thermal, op- tical and thermal-optical analysis methods

    SciTech Connect (OSTI)

    Soto-Garcia, Lydia L.; Andreae, Meinrat O.; Andreae, Tracey W.; taxo, Paulo Ar-; Maenhaut, Willy; Kirchstetter, Thomas; Novakov, T.; Chow, Judith C.; Mayol-Bracero, Olga L.

    2011-06-03

    Aerosol samples were collected at a pasture site in the Amazon Basin as part of the project LBA-SMOCC-2002 (Large-Scale Biosphere-Atmosphere Experiment in Amazonia - Smoke Aerosols, Clouds, Rainfall and Climate: Aerosols from Biomass Burning Perturb Global and Regional Climate). Sampling was conducted during the late dry season, when the aerosol composition was dominated by biomass burning emissions, especially in the submicron fraction. A 13-stage Dekati low-pressure impactor (DLPI) was used to collect particles with nominal aerodynamic diameters (D{sub p}) ranging from 0.03 to 0.10 m. Gravimetric analyses of the DLPI substrates and filters were performed to obtain aerosol mass concentrations. The concentrations of total, apparent elemental, and organic carbon (TC, EC{sub a}, and OC) were determined using thermal and thermal-optical analysis (TOA) methods. A light transmission method (LTM) was used to determine the concentration of equivalent black carbon (BC{sub e}) or the absorbing fraction at 880 nm for the size-resolved samples. During the dry period, due to the pervasive presence of fires in the region upwind of the sampling site, concentrations of fine aerosols (D{sub p} < 2.5 {mu}m: average 59.8 {mu}g m{sup -3}) were higher than coarse aerosols (D{sub p} > 2.5 {mu}m: 4.1 {mu}g m{sup -3}). Carbonaceous matter, estimated as the sum of the particulate organic matter (i.e., OC x 1.8) plus BC{sub e}, comprised more than 90% to the total aerosol mass. Concentrations of EC{sub a} (estimated by thermal analysis with a correction for charring) and BCe (estimated by LTM) averaged 5.2 {+-} 1.3 and 3.1 {+-} 0.8 {mu}g m{sup -3}, respectively. The determination of EC was improved by extracting water-soluble organic material from the samples, which reduced the average light absorption {angstrom} exponent of particles in the size range of 0.1 to 1.0 {mu}m from > 2.0 to approximately 1.2. The size-resolved BC{sub e} measured by the LTM showed a clear maximum between 0.4 and 0.6 m in diameter. The concentrations of OC and BC{sub e} varied diurnally during the dry period, and this variation is related to diurnal changes in boundary layer thickness and in fire frequency.

  14. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    . Electricity Consumption (kWh) by End Use for Non-Mall Buildings, 2003 Total Electricity Consumption (billion kWh) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing...

  15. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    E3A. Electricity Consumption (Btu) by End Use for All Buildings, 2003 Total Electricity Consumption (trillion Btu) Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing...

  16. --No Title--

    Gasoline and Diesel Fuel Update (EIA)

    (trillion Btu) District Heat Energy Intensity (thousand Btusquare foot) Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

  17. Released: June 2006

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

    2. Water Heating Equipment, Number of Buildings and Floorspace for Non-Mall Buildings, ... ,"All Build- ings*","Build- ings with Water Heating","Type of Water Heating ...

  18. Revised: December, 2008

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

    by End Use for All Buildings, 2003" ," Major Fuel Energy Intensity (thousand Btusquare foot) " ,"Total ","Space Heat- ing","Cool- ing","Venti- lation","Water Heat-...

  19. U.S. Department of Energy

    Office of Scientific and Technical Information (OSTI)

    ... than an HRP-certified individual is not ing: ing HRP duties is denied both escorted and ... Contractor means subcontractors at all tiers and any industrial, educational, commercial, ...

  20. Total Space Heating Water Heating Cook-

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Commercial Buildings Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing...