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Energy Saving Melting and Revert Reduction Technology (E-SMARRT): Development of Surface Engineered Coating Systems for Aluminum Pressure Die Casting Dies: Towards a 'Smart' Die Coating

Description: The main objective of this research program was to design and develop an optimal coating system that extends die life by minimizing premature die failure. In high-pressure aluminum die-casting, the die, core pins and inserts must withstand severe processing conditions. Many of the dies and tools in the industry are being coated to improve wear-resistance and decrease down-time for maintenance. However, thermal fatigue in metal itself can still be a major problem, especially since it often leads… more
Date: July 31, 2012
Creator: Moore, Dr. John J. & Dr. Jianliang Lin,
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance Evaluation for Modular, Scalable Liquid-Rack Cooling Systems in Data Centers

Description: Scientific and enterprise data centers, IT equipment product development, and research data center laboratories typically require continuous cooling to control inlet air temperatures within recommended operating levels for the IT equipment. The consolidation and higher density aggregation of slim computing, storage and networking hardware has resulted in higher power density than what the raised-floor system design, coupled with commonly used computer rack air conditioning (CRAC) units, was ori… more
Date: May 1, 2009
Creator: Xu, TengFang
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Audit Report on "Management Controls over the Department of Energy's American Recovery and Reinvestment Act - Louisiana State Energy Program"

Description: The Department of Energy's (Department) Office of Energy Efficiency and Renewable Energy (EERE) provides grants to states, territories and the District of Columbia (states) to support their energy priorities through the State Energy Program (SEP). Federal funding is based on a grant formula that considers the population and energy consumption in each state, and amounted to $25 million for Fiscal Year (FY) 2009. The American Recovery and Reinvestment Act of 2009 (Recovery Act) expanded the SEP b… more
Date: May 1, 2010
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT OF GLASS AND CRYSTALLINE CERAMIC FORMS FOR DISPOSITION OF EXCESS PLUTONIUM

Description: In the aftermath of the Cold War, the United States Department of Energy (DOE) has identified up to 50 metric tons of excess plutonium that needs to be dispositioned. The bulk of the material is slated to be blended with uranium and fabricated into a Mixed Oxide (MOX) fuel for subsequent burning in commercial nuclear reactors. Excess plutonium-containing impurity materials making it unsuitable for fabrication into MOX fuel will need to be dispositioned via other means. Glass and crystalline cer… more
Date: September 10, 2009
Creator: Marra, James; Cozzi, A; Crawford, C.; Herman, C.; Marra, John & Peeler, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

THE 10,000 YEAR PLAN

Description: Pharkya, a Ph.D. candidate in materials science and engineering, works in the area of corrosion science, predicting how materials will perform over extended periods of time. Her particular focus is a nickel-chromium-molybdenum alloy called C-22, a highly corrosion-resistant metal. Pharkya's aim is to help determine whether containers made from C-22 can be used to store high-energy nuclear waste--for 10,000 years and longer. Pharkya's work is part of a plan by the U.S. Department of Energy to co… more
Date: February 10, 2006
Creator: Srisuro, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

RECOVERY AND UTILIZATION OF COALMINE METHANE: PILOT-SCALE DEMONSTRATION PHASE

Description: A fuel cell demonstration was conducted on coalmine methane to demonstrate the utilization of methane emissions associated with underground coal mining operations in a carbonate Direct FuelCell{reg_sign} (DFC{reg_sign}) power plant. FuelCell Energy (FCE) conducted the demonstration with support from the U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) and in cooperation with Northwest Fuel Development, the operator of the Rose Valley test site in Hopedale, Ohio. The … more
Date: September 28, 2004
Creator: Steinfeld, George & Hunt, Jennifer
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Rail Alignment Environmental Impact Statement: An Update

Description: On July 23,2002, the President of the United States signed into law a joint resolution of the United States Congress designating the Yucca Mountain site in Nye County, Nevada, for development as a geologic repository for the disposal of spent nuclear fuel and high-level radioactive waste. If the US. Nuclear Regulatory Commission authorizes construction of the repository and receipt and possession of spent nuclear fuel and high-level radioactive at Yucca Mountain, the U.S. Department of Energy (… more
Date: January 20, 2005
Creator: Sweeney, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Savannah River Site Spent Nuclear Fuel Management Final Environmental Impact Statement

Description: The proposed DOE action considered in this environmental impact statement (EIS) is to implement appropriate processes for the safe and efficient management of spent nuclear fuel and targets at the Savannah River Site (SRS) in Aiken County, South Carolina, including placing these materials in forms suitable for ultimate disposition. Options to treat, package, and store this material are discussed. The material included in this EIS consists of approximately 68 metric tons heavy metal (MTHM) of sp… more
Date: April 14, 2000
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

REAL TIME SYSTEM OPERATIONS 2006-2007

Description: The Real Time System Operations (RTSO) 2006-2007 project focused on two parallel technical tasks: (1) Real-Time Applications of Phasors for Monitoring, Alarming and Control; and (2) Real-Time Voltage Security Assessment (RTVSA) Prototype Tool. The overall goal of the phasor applications project was to accelerate adoption and foster greater use of new, more accurate, time-synchronized phasor measurements by conducting research and prototyping applications on California ISO's phasor platform - Re… more
Date: August 15, 2008
Creator: Eto, Joseph H.; Parashar, Manu & Lewis, Nancy Jo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on the U.S. DOE Geothermal Technologies Program's 2009 Risk Analysis

Description: NREL conducted an annual program risk analysis on behalf of the U.S. Department of Energy Geothermal Technologies Program (GTP). NREL implemented a probabilistic risk analysis of GTP-sponsored research, development, and demonstration (RD&D) work, primarily for enhanced geothermal systems (EGS). The analysis examined estimates of improvement potential derived from program RD&D work for two types of technology performance metric (TPM): EGS-enabling technologies potential and EGS cost improvement … more
Date: February 1, 2010
Creator: Young, K. R.; Augustine, C. & Anderson, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Universal bioprocessor LDRD final report.

Description: Microsystems pose unparalleled opportunity in the realm of real-time sample analysis for multiple applications, including Homeland Security monitoring devices, environmental monitoring, and biomedical diagnostics. The need for a universal means of processing, separating, and delivering a sample within these devices is a critical need if these systems are to receive widespread implementation in the industry and government sectors. Efficient particle separation and enrichment techniques are criti… more
Date: November 1, 2006
Creator: Luongo, Kenneth N., 1960; Reichmuth, David S.; Cummings, Eric B.; Krafcik, Karen L.; Davalos, Rafael V.; Sabounchi, Poorya et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fuel Cycle Scenario Definition, Evaluation, and Trade-offs

Description: This report aims to clarify many of the issues being discussed within the AFCI program, including Inert Matrix Fuel (IMF) versus Mixed Oxide (MOX) fuel, single-pass versus multi-pass recycling, thermal versus fast reactors, potential need for transmutation of technetium and iodine, and the value of separating cesium and strontium. It documents most of the work produced by INL, ANL, and SNL personnel under their Simulation, Evaluation, and Trade Study (SETS) work packages during FY2005 and the f… more
Date: August 1, 2006
Creator: Piet, Steven J.; Matthern, Gretchen E.; Jacobson, Jacob J.; Laws, Christopher T.; Cadwallader, Lee C.; Yacout, Abdellatif M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

YUCCA MOUNTAIN PROJECT RECOMMENDATION BY THE SECRETARY OF ENERGY REGARDING THE SUITABILITY OF THE YUCCA MOUNTAIN SITE FOR A REPOSITORY UNDER THE NUCLEAR WASTE POLICY ACT OF 1982

Description: For more than half a century, since nuclear science helped us win World War II and ring in the Atomic Age, scientists have known that !he Nation would need a secure, permanent facility in which to dispose of radioactive wastes. Twenty years ago, when Congress adopted the Nuclear Waste Policy Act of 1982 (NWPA or ''the Act''), it recognized the overwhelming consensus in the scientific community that the best option for such a facility would be a deep underground repository. Fifteen years ago, Co… more
Date: March 26, 2002
Creator: NA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean Cities Annual Metrics Report 2006

Description: Report summarizes Clean Cities coalition accomplishments, including membership, funding, sales of alternative fuel blends, deployment of AFVs and HEVs, idle reduction initiatives, and fuel economy activities.
Date: July 1, 2007
Creator: Bergeron, P. & Putsche, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Durability of Depleted Uranium Aggregates (DUAGG) in Ducrete Shielding Applications

Description: The depleted uranium (DU) inventory in the United States exceeds 500,000 metric tonnes. To evaluate the possibilities for reuse of this stockpile of DU, the U.S. Department of Energy (DOE) has created a research and development program to address the disposition of its DU(1). One potential use for this stockpile material is in the fabrication of nuclear shielding casks for the storage, transport, and disposal of spent nuclear fuels. The use of the DU-based shielding would reduce the size and we… more
Date: February 27, 2003
Creator: Mattus, Catherine H. & Dole, Leslie R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

100-N Area Strontium-90 Treatability Demonstration Project: Phytoextraction Along the 100-N Columbia River Riparian Zone – Field Treatability Study

Description: Strontium-90 (90Sr) is present both in the aquifer near the river and in the vadose and riparian zones of the river’s shore at 100-NR-2. Phytoextraction of 90Sr is being considered as a potential remediation system along the riparian zone of the Columbia River. Phytoextraction would employ coyote willow (Salix exigua). Past studies have shown that willow roots share uptake mechanisms for Sr with Ca, a plant macronutrient as well as no discrimination between Sr and 90Sr. Willow 90Sr concentratio… more
Date: January 11, 2010
Creator: Fellows, Robert J.; Fruchter, Jonathan S.; Driver, Crystal J. & Ainsworth, Calvin C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Improving Air-Conditioner and Heat Pump Modeling

Description: A new approach to modeling residential air conditioners and heat pumps allows users to model systems by specifying only the more readily-available SEER/EER/HSPF-type metrics. Manufacturer data was used to generate full sets of model inputs for over 450 heat pumps and air conditioners. A sensitivity analysis identified which inputs can be safely defaulted 'behind-the-scenes' without negatively impacting the reliability of energy simulations.
Date: March 1, 2012
Creator: Winkler, J.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Process Design and Economics for Conversion of Lignocellulosic Biomass to Ethanol: Thermochemical Pathway by Indirect Gasification and Mixed Alcohol Synthesis

Description: This design report describes an up-to-date benchmark thermochemical conversion process that incorporates the latest research from NREL and other sources. Building on a design report published in 2007, NREL and its subcontractor Harris Group Inc. performed a complete review of the process design and economic model for a biomass-to-ethanol process via indirect gasification. The conceptual design presented herein considers the economics of ethanol production, assuming the achievement of internal r… more
Date: May 1, 2011
Creator: Dutta, A.; Talmadge, M.; Hensley, J.; Worley, M.; Dudgeon, D.; Barton, D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New Processing and Characterization Approaches for Achieving Full Performance of High Temperature Superconducting Tapes of (Bi,Pb)2Sr2Ca2Cu3Ox

Description: The thrust of this research was to identify and understand current limiting mechanisms (CLMs) that limit the current carrying capacity of (Bi,Pb)2Sr2Ca2Cu3Ox (2223) in Ag-sheathed wire. Our program concentrated on developing new methods to identify CLMs at the micrometer scale and new processing techniques to eliminate CLMs. All of the DOE Superconductivity Partnership Initiative (SPI) programs are using 2223 wire, so increasing the critical current density (Jc) in the wire can improve the tech… more
Date: March 22, 2006
Creator: Hellstrom, E. E. & Larbalestier, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

H2-MHR Pre-Conceptual Design Report: SI-Based Plant; HTE-Based Plant

Description: Hydrogen and electricity are expected to dominate the world energy system in the long term. The world currently consumes about 50 million metric tons of hydrogen per year, with the bulk of it being consumed by the chemical and refining industries. The demand for hydrogen is expected to increase, especially if the U.S. and other countries shift their energy usage towards a hydrogen economy, with hydrogen consumed as an energy commodity by the transportation, residential, and commercial sectors. … more
Date: April 19, 2006
Creator: Richards, Matt; Shenoy, A. S.; Brown, L. C.; Buckingham, R. T.; Harvego, E. A.; Peddicord, K. L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Update to Assessment of Direct Disposal in Unsaturated Tuff of Spent Nuclear Fuel and High-Level Waste Owned by U.S. Department of Energy

Description: The overall purpose of this study is to provide information and guidance to the Office of Environmental Management of the U.S. Department of Energy (DOE) about the level of characterization necessary to dispose of DOE-owned spent nuclear fuel (SNF). The disposal option modeled was codisposal of DOE SNF with defense high-level waste (DHLW). A specific goal was to demonstrate the influence of DOE SNF, expected to be minor, in a predominately commercial repository using modeling conditions similar… more
Date: September 1, 1998
Creator: Wheatley, P. D. & Rechard, R. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Amine Solvent Formulations and Process Integration for Near-Term CO2 Capture Success

Description: This Phase I SBIR project investigated the economic and technical feasibility of advanced amine scrubbing systems for post-combustion CO2 capture at coal-fired power plants. Numerous combinations of advanced solvent formulations and process configurations were screened for energy requirements, and three cases were selected for detailed analysis: a monoethanolamine (MEA) base case and two “advanced” cases: an MEA/Piperazine (PZ) case, and a methyldiethanolamine (MDEA) / PZ case. The MEA/PZ and M… more
Date: June 28, 2007
Creator: Fisher, Kevin S.; Searcy, Katherine; Rochelle, Gary T.; Ziaii, Sepideh & Schubert, Craig
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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