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Performance of Single Electrode-Supported Cells Operating in the Electrolysis Mode

Description: An experimental study is under way to assess the performance of electrode-supported solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800 to 900ºC. Results presented in this paper were obtained from single cells, with an active area of 16 cm2 per cell. The electrolysis cells are electrode-supported, with yttria-stabilized zirconia (YSZ) electrolytes (~10 µm thick), nickel-YSZ steam/hydrogen electrodes (~1400 µm thick), and manganite (… more
Date: November 1, 2009
Creator: O'Brien, J. E.; Housley, G. K. & Milobar, D. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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DOE Hydrogen, Fuel Cells and Infrastructure Technologies Program Integrated Hydrogen Production, Purification and Compression System

Description: The project was started in April 2005 with the objective to meet the DOE target of delivered hydrogen of <$1.50/gge, which was later revised by DOE to $2-$3/gge range for hydrogen to be competitive with gasoline as a fuel for vehicles. For small, on-site hydrogen plants being evaluated at the time for refueling stations (the 'forecourt'), it was determined that capital cost is the main contributor to the high cost of delivered hydrogen. The concept of this project was to reduce the cost by c… more
Date: June 30, 2011
Creator: Tamhankar, Satish; Gulamhusein, Ali; Boyd, Tony; DaCosta, David & Golben, Mark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Grid Modeling for the SunShot Vision Study

Description: This document describes the use of production cost modeling in the SunShot Vision study, including methods used to create the SunShot Vision scenarios, their implementation in the Gridview model, and assumptions regarding transmission system and operation of each generator type. It also describes challenges and limitations of modeling solar generation technologies in production cost models, and suggests methods for improving their representation in current models.
Date: February 1, 2012
Creator: Brinkman, G.; Denholm, P.; Drury, E.; Ela, E.; Mai, T.; Margolis, R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advancing Reactive Tracer Methods for Measurement of Thermal Evolution in Geothermal Reservoirs: Final Report

Description: The injection of cold fluids into engineered geothermal system (EGS) and conventional geothermal reservoirs may be done to help extract heat from the subsurface or to maintain pressures within the reservoir (e.g., Rose et al., 2001). As these injected fluids move along fractures, they acquire heat from the rock matrix and remove it from the reservoir as they are extracted to the surface. A consequence of such injection is the migration of a cold-fluid front through the reservoir (Figure 1) that… more
Date: July 1, 2011
Creator: Plummer, Mitchell A.; Palmer, Carl D.; Mattson, Earl D.; Hull, Laurence C. & Redden, George D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Basin-Scale Opportunity Assessment Initiative Background Literature Review

Description: As called for in the March 24, 2010, Memorandum of Understanding (MOU) for Hydropower, the U.S. Department of Energy (DOE), the U.S. Department of the Interior (DOI), the U.S. Army Corps of Engineers (USACE), environmental stakeholders, and the hydropower industry are collaborating to identify opportunities to simultaneously increase electricity generation and improve environmental services in river basins of the United States. New analytical tools provide an improved ability to understand, mod… more
Date: October 1, 2010
Creator: Saulsbury, Bo; Geerlofs, Simon H.; Cada, Glenn F & Bevelhimer, Mark S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The W boson production cross section at the LHC through O(alpha**2(s)

Description: We compute the {Omicron}({alpha}{sub s}{sup 2}) QCD corrections to the fully differential cross-section pp {yields} WX {yields} {ell}{nu}X, retaining all effects from spin correlations. The knowledge of these corrections makes it possible to calculate with high precision the W boson production rate and acceptance at the LHC, subject to realistic cuts on the lepton and missing energy distributions. For certain choices of cuts we find large corrections when going from next-to-leading order (NLO) … more
Date: January 1, 2006
Creator: Melnikov, Kirill; U., /Hawaii; Petriello, Frank & /Wisconsin U., Madison /Fermilab
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hydrogen Production via a Commercially Ready Inorganic Membrane Reactor Semi-Annual Technical Progress Report: April-September 2006

Description: In the last report, we covered the experimental verification of the mathematical model we developed for WGS-MR, specifically in the aspect of CO conversion ratio, and the effect of the permeate sweep. Bench-top experimental study has been continuing in this period to verify the remaining aspects of the reactor performance, including hydrogen recovery ratio, hydrogen purity and CO contaminant level. Based upon the comparison of experimental vs simulated results in this period along with the resu… more
Date: September 30, 2006
Creator: Liu, Paul K. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tevatron results

Description: Recent results obtained by the CDF and D0 experiments at the Tevatron Run II are presented. A first part is dedicated to QCD physics where inclusive jet production, dijet azimuthal decorrelations and jet shapes measurements are reported. Electroweak physics is then discussed relating measurements of the W and Z bosons productions, of the forward-backward charge asymmetry in W production, of the W width and of the top quarks mass. The extensive Run II exploration program is finally approached re… more
Date: January 1, 2005
Creator: Lefevre, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement of J/psi meson and b-hadron production cross section at sqrt(s) = 1.96 TeV

Description: A new measurement of the inclusive and differential production cross sections of J/{psi} mesons and b-hadrons in proton-antiproton collisions at {radical}s = 1960 GeV is presented. The data correspond to an integrated luminosity of 39.7 pb{sup -1} collected by the CDF Run II detector. The integrated cross section for inclusive J/{psi} production for all transverse momenta from 0 to 20 GeV/c in the rapidity range |y| < 0.6 is found to be 4.08 {+-} 0.02(stat){sub -0.33}{sup +0.36}(syst) {mu}b.… more
Date: March 1, 2006
Creator: Yamashita, Tomohiro & U., /Okayama
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Determination of Reportable Radionuclides for DWPF Sludge Batch 3 (Macrobatch 4)

Description: The Waste Acceptance Product Specifications (WAPS) 1.2 require that ''The Producer shall report the inventory of radionuclides (in Curies) that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the years 2015 and 3115''. As part of the strategy to meet WAPS 1.2, the Defense Waste Processing Facility (DWPF) will report for each waste type, all radionuclides (with half-lives grea… more
Date: May 1, 2005
Creator: Bannochie, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Polycrystalline Thin Film Photovoltaics: From the Laboratory to Solar Fields

Description: The conclusions of this report are that: (1) many issues how thin-film solar cells work remain unresolved, requiring further fundamental R and D effort; (2) commercial thin-film PV module production reached 29% in 2005 in the US, indicating much more rapid growth than crystalline Si PV; (3) commercial module performance is increasing based on current knowledge, more R and D will lead to further improvement; and (4) stability of thin-film modules is acceptable ({le} 1% per year power loss) if th… more
Date: May 1, 2006
Creator: von Roedern, Bolko; Ullal, Harin & Zweibel, Ken
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
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Office of Renewable Energy Technology Geothermal and Hydropower Technologies Division, FY 1983 Annual Operating Plan

Description: There are between 700 and 3400 guads of recoverable geothermal energy in the US. Hydrothermal, geopressure and hot dry rock are the three principal types of geothermal resources (in order of technological readiness) which can supply large amounts of energy for electric power production and direct heat applications. Hydrothermal resources include water and steam trapped in fractured or porous rocks. A hydrothermal system is classified as either hot-water or vapor-dominated (steam), according to … more
Date: January 1, 1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Search for the Higgs Boson Using High-pT Isolated Like-Sign Dil Events in 1.96-TeV Proton-Antiproton Collisions

Description: Our physics objective is to search for the neutral on using events containing a like-sign dilepton pair in the following reaction: q{bar q} {yields} W{sup {+-}} H {yields} W{sup {+-}} W*W* {yields} {ell}{sup {+-}}{ell}{sup {+-}} + X. The relevant Higgs boson mass region is above 160 GeV/c{sup 2} for the Standard Model Higgs boson where the branching fraction of H {yields} W*W* supersedes that of H {yields} b{bar b}. The search for this signature in the region at low mass (less than 135 GeV/c{su… more
Date: March 1, 2005
Creator: Kobayashi, Hirokazu
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Measurements of the B Production Cross Section in Proton-Antiproton Collisions at s**(1/2) = 1.96 TeV using semileptonic decays of b hadrons

Description: The authors present a measurement of the cross section of b hadron (H{sub b}) production in p{bar p} collisions at {radical}s = 1.96 TeV using the CDF II detector at the Fermilab Tevatron. They use 83 pb{sup -1} of data taken between october 2002 and May 2003 that was collected with a trigger sensitive to high momentum muons and displaced tracks. They use partially reconstructed decays in the following modes: H{sub b} {yields} {mu}{sup -} {bar {nu}}{sub {mu}}D{sup 0}X, D{sup 0} {yields} K{sup -… more
Date: July 1, 2006
Creator: Kraus, James Alexander
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Utah State Prison Space Heating with Geothermal Heat Third Semi-Annual Report for the Period January 1981 - July 1981

Description: Facing certain cost overruns and lacking information about the long term productivity of the Crystal Hot Springs geothermal resource, costs of construction for the geothermal retrofit, and the method of disposal of geothermal waste water, the Energy Office embarked on a strategy that would enable the project participants to develop accurate cost information on the State Prison Space Heating Program through the completion of Task 5-Construction. The strategy called for: (1) Completion of the res… more
Date: November 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Green Energy: Advancing Bio-Hydrogen

Description: Developing a model of metabolism linked to H2 production in green algae. Develop tools for parameter discovery and optimization at organism level and advance knowledge of hydrogen-producting photosynthetic organisms.
Date: July 1, 2007
Creator: Alber, D.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
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Simulation of Cosmic Ray Acceleration, Propagation And Interaction in SNR Environment

Description: Recent studies of young supernova remnants (SNRs) with Chandra, XMM, Suzaku and HESS have revealed complex morphologies and spectral features of the emission sites. The critical question of the relative importance of the two competing gamma-ray emission mechanisms in SNRs; inverse-Compton scattering by high-energy electrons and pion production by energetic protons, may be resolved by GLAST-LAT. To keep pace with the improved observations, we are developing a 3D model of particle acceleration, d… more
Date: October 15, 2007
Creator: Lee, S. H.; Kamae, T. & Ellison, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Progress in top quark physics

Description: Experimental measurements of the properties of the top quark have improved and will continue to improve significantly, with the excellent operation of the CDF and D0 experiments and the Tevatron p{bar p} collider at the Fermi National Accelerator Laboratory. All of the final state experimental signatures from top quark production and decay are being analyzed to test if this most massive quark is sensitive to new physics beyond the standard model. So far, observations are consistent with the sta… more
Date: February 1, 2006
Creator: Thomson, Evelyn J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Annual Site Environmental Report: 2005

Description: This report provides information about environmental programs during 2005 at the Stanford Linear Accelerator Center (SLAC). Seasonal activities that span calendar years are also included. Production of an annual site environmental report (ASER) is a requirement established by the United States Department of Energy (DOE) for all management and operating (M&O) contractors throughout the DOE complex. SLAC is a federally-funded research and development center with Stanford University as the M&a… more
Date: February 3, 2007
Creator: sabba, d
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inhibiting Deposition of Siliceous Scale

Description: Lawrence Livermore Laboratory is developing the TOTAL FLOW process for efficient utilization of the thermal energy stored in high temperature-high salinity brines from the Salton Sea Geothermal Field (SSGF) for electric power production. Energy conversion is accomplished by flowing brine through mixed phase expanders and directing the high velocity exhaust jets onto the blades of an impulse turbine. Previous field experience, however, at the Sinclair No. 4 site in the SSGF indicated that deposi… more
Date: January 1, 1976
Creator: Grens, J.Z. & Owen, L.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hot Dry Rock Geothermal Energy Development Program Annual Report Fiscal Year 1988

Description: The complete list of HDR objectives is provided in Reference 10, and is tabulated below in Tables 1 and 2 for the reader's convenience. The primary, level 1, objective for HDR is ''to improve the technology to the point where electricity could be produced commercially from a substantial number of known HDR resource sites in a cost range of 5 to 8 cents/kWh by 1997''. A critically important milestone in attaining this cost target is the level II objective: ''Evaluate the performance of the Fento… more
Date: January 1, 1988
Creator: Dash, Zora V.; Murphy, Hugh D. & Smith, Morton C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wairakei Geothermal Field Reservoir Engineering Data

Description: Systems, Science and Software (S{sup 3}) has prepared an extensive collection of fundamental field information concerning the history of the Wairakei geothermal field in New Zealand. The purpose of the effort was to accumulate any and all pertinent data so that various theoretical reservoir simulation studies may be carried out in the future in a meaningful way. Categories of data considered include electrical resistivity measurements, magnetic force surveys, surface heat flow data and a catalo… more
Date: January 1, 1978
Creator: Pritchett, J.W.; Rice, L.F. & Garg, S.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Quantitative experiments with electrons in a positively charged beam

Description: Intense ion beams are difficult to maintain as non-neutral plasmas. Experiments and simulations are used to study the complex interactions between beam ions and (unwanted) electrons. Such ''electron clouds'' limit the performance of many accelerators. To characterize electron clouds, a number of parameters are measured including: total and local electron production and loss for each of three major sources, beam potential versus time, electron line-charge density, and gas pressure within the bea… more
Date: December 6, 2006
Creator: Molvik, A W; Vay, J; Covo, M K; Cohen, R; Baca, D; Bieniosek, F et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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