UNT Libraries Government Documents Department - 221 Matching Results
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- Reversal of OFI and CHF in Research Reactors Operating at 1 to 50 Bar. Version 1.0
- No Description Available.
- Recovery of Mo for Accelerator Production of Mo-99 Using (y,n) Reaction on Mo-100
- No Description Available.
- Uranium Anodic Dissolution under Slightly Alkaline Conditions Progress Report Full-Scale Demonstration with DU Foil
- No Description Available.
- Testing of a Microfluidic Sampling System for High Temperature Electrochemical MC&A
- No Description Available.
- Protective Measures Index and Vulnerability Index: Indicators of Critical Infrastructure Protection and Vulnerability
- No Description Available.
- Using Multi-scale Dynamic Rupture Models to Improve Ground Motion Estimates: ALCF-2 Early Science Program Technical Report
- No Description Available.
- Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines
- No Description Available.
- Review of Existing Hydroelectric Turbine-Governor Simulation Models
- No Description Available.
- Testing Dynamic Simulation Models for Different Types of Advanced Pumped Storage Hydro Units
- No Description Available.
- Safeguards Approaches for Very Long-Term Storage of Spent Fuel
- No Description Available.
- Used Fuel Disposition Campaign - Embrittlement and DBTT of High-Burnup PWR Fuel Cladding Alloys
- No Description Available.
- Van de Graaff Experiments: Mo Redox Chemistry and Iodine Speciation
- No Description Available.
- SHARP Assembly-Scale Multiphysics Demonstration Simulations.
- No Description Available.
- NEAMS Update. Quarterly Report for April - June 2013
- No Description Available.
- VARI3D & PERSENT: Perturbation and Sensitivity Analysis
- No Description Available.
- Impact of Plate Size on Peak Cladding Strain.
- No Description Available.
- Irradiation Experiment Conceptual Design Parameters for MITR LEU U-Mo Fuel Conversion
- No Description Available.
- Vehicle Technologies Program Government Performance and Results Act (GPRA) Report for Fiscal Year 2014
- No Description Available.
- Preliminary Accident Analyses for Conversion of the University of Missouri Research Reactor (MURR) from Highly-Enriched to Low-Enriched Uranium Prepared by
- No Description Available.
- Irradiation Experiment Conceptual Design Parameters for MURR LEU U-Mo Fuel Conversion Revision
- No Description Available.
- NEAMS: The Nuclear Energy Advanced Modeling and Simulation Program
- No Description Available.
- Petascale, Adaptive Cfd (ALCF) ESP Technical Report): ALCF-2 Early Science Program Technical Report
- No Description Available.
- Strategy for Multi-Scale Single-Phase Flow Coupling
- No Description Available.
- Irradiation Experiment Conceptual Design Parameters for Murr Leu U-MO Fuel Conversion
- No Description Available.
- Used Fuel Disposition Campaign Phase I Ring Compression Testing of High-Burnup Cladding
- No Description Available.
- NEAMS Update. Quarterly Report for October - December 2012
- No Description Available.
- Water resource assessment of geothermal resources and water use in geopressured geothermal systems.
- No Description Available.
- Verification test suite for systems analysis tools
- No Description Available.
- MOCFE-Bone: the 3D MOC mini-application for exascale research
- No Description Available.
- Used fuel management system architecture evaluation, Fiscal Year 2012
- No Description Available.
- Impact of future climate variability on ERCOT thermoelectric power generation
- No Description Available.
- Summary report on liquid-liquid contactor scoping experiments and validation test case definition
- No Description Available.
- Verification and validation of the PLTEMP/ANL code for thermal hydraulic analysis of experimental and test reactors
- No Description Available.
- Guidelines for beamline and front-end radiation shielding design at the Advanced Photon Source, rev. 4
- No Description Available.
- Generation IV Nuclear Energy System Initiative; Air-Cooled Option Rccs Studies and NSTF Preparation.
- No Description Available.
- Performance analysis of Darshan 2.2.3 on the Cray XE6 platform.
- No Description Available.
- Ultra-Fast Boriding for Improved Efficiency and Reduced Emissions in Materials Processing Industries
- No Description Available.
- Sodium pool fire phenomena, sodium pool fire modeling in SOFIRE II, and SOFIRE II calculations for the AFR-100
- No Description Available.
- Progress report on dynamic simulation of the Sandia small-scale supercritical carbon dioxide brayton cycle test loop with the ANL plant dynamics code
- No Description Available.
- Soil carbon response to rising temperature
- No Description Available.
- Report on thermal aging effects on tensile properties of advanced austenitic steels.
- No Description Available.
- Status report on improved understanding of creep-fatigue damage in advanced materials.
- No Description Available.
- Vehicle Technologies Program Government Performance and Results Act (GPRA) Report for Fiscal Year 2012
- The U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy has defined milestones for its Vehicle Technologies Program (VTP). This report provides estimates of the benefits that would accrue from achieving these milestones relative to a base case that represents a future in which there is no VTP-supported vehicle technology development. Improvements in the fuel economy and reductions in the cost of light- and heavy-duty vehicles were estimated by using Argonne National Laboratory's Autonomie powertrain simulation software and doing some additional analysis. Argonne also estimated the fraction of the fuel economy improvements that were attributable to VTP-supported development in four 'subsystem' technology areas: batteries and electric drives, advanced combustion engines, fuels and lubricants, and materials (i.e., reducing vehicle mass, called 'lightweighting'). Oak Ridge National Laboratory's MA{sup 3}T (Market Acceptance of Advanced Automotive Technologies) tool was used to project the market penetration of light-duty vehicles, and TA Engineering's TRUCK tool was used to project the penetrations of medium- and heavy-duty trucks. Argonne's VISION transportation energy accounting model was used to estimate total fuel savings, reductions in primary energy consumption, and reductions in greenhouse gas emissions that would result from achieving VTP milestones. These projections indicate that by 2030, the on-road fuel economy of both light- and heavy-duty vehicles would improve by more than 20%, and that this positive impact would be accompanied by a reduction in oil consumption of nearly 2 million barrels per day and a reduction in greenhouse gas emissions of more than 300 million metric tons of CO{sub 2} equivalent per year. These benefits would have a significant economic value in the U.S. transportation sector and reduce its dependency on oil and its vulnerability to oil price shocks.
- Resolution of qualification issues for existing structural materials.
- No Description Available.
- Final work plan: environmental site investigation at Sylvan Grove, Kansas.
- In 1998, carbon tetrachloride was found above the maximum contaminant level (MCL) of 5 {micro}g/L in groundwater from one private livestock well at Sylvan Grove, Kansas, by the Kansas Department of Health and Environment (KDHE). The 1998 KDHE sampling was conducted under the U.S. Department of Agriculture (USDA) private well sampling program. The Commodity Credit Corporation (CCC), a USDA agency, operated a grain storage facility in Sylvan Grove from 1954 to1966. Carbon tetrachloride is the contaminant of primary concern at sites associated with former CCC/USDA grain storage operations. Sylvan Grove is located in western Lincoln County, approximately 60 mi west of Salina (Figure 1.1). To determine whether the former CCC/USDA facility at Sylvan Grove is a potential contaminant source and its possible relationship to the contamination in groundwater, the CCC/USDA has agreed to conduct an investigation, in accordance with the Intergovernmental Agreement between the KDHE and the Farm Service Agency (FSA) of the USDA. This Work Plan presents historical data related to previous investigations, grain storage operations, local private wells and public water supply (PWS) wells, and local geologic and hydrogeologic conditions at Sylvan Grove. The findings from a review of all available documents are discussed in Section 2. On the basis of the analyses of historical data, the following specific technical objectives are proposed for the site investigation at Sylvan Grove: (1) Evaluate the potential source of carbon tetrachloride at the former CCC/USDA facility; (2) Determine the relationship of potential contamination (if present) at the former CCC/USDA facility to contamination identified in 1998 in groundwater samples from one private well to the west; and (3) Delineate the extent of potential contamination associated with the former CCC/USDA facility. The detailed scope of work is outlined in Section 3. The results of the proposed work will provide the basis for determining …
- Material and energy flows in the materials production, assembly, and end-of-life stages of the automotive lithium-ion battery life cycle
- This document contains material and energy flows for lithium-ion batteries with an active cathode material of lithium manganese oxide (LiMn{sub 2}O{sub 4}). These data are incorporated into Argonne National Laboratory's Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model, replacing previous data for lithium-ion batteries that are based on a nickel/cobalt/manganese (Ni/Co/Mn) cathode chemistry. To identify and determine the mass of lithium-ion battery components, we modeled batteries with LiMn{sub 2}O{sub 4} as the cathode material using Argonne's Battery Performance and Cost (BatPaC) model for hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles. As input for GREET, we developed new or updated data for the cathode material and the following materials that are included in its supply chain: soda ash, lime, petroleum-derived ethanol, lithium brine, and lithium carbonate. Also as input to GREET, we calculated new emission factors for equipment (kilns, dryers, and calciners) that were not previously included in the model and developed new material and energy flows for the battery electrolyte, binder, and binder solvent. Finally, we revised the data included in GREET for graphite (the anode active material), battery electronics, and battery assembly. For the first time, we incorporated energy and material flows for battery recycling into GREET, considering four battery recycling processes: pyrometallurgical, hydrometallurgical, intermediate physical, and direct physical. Opportunities for future research include considering alternative battery chemistries and battery packaging. As battery assembly and recycling technologies develop, staying up to date with them will be critical to understanding the energy, materials, and emissions burdens associated with batteries.
- NEAMS update quarterly report for January - March 2012.
- Quarterly highlights are: (1) The integration of Denovo and AMP was demonstrated in an AMP simulation of the thermo-mechanics of a complete fuel assembly; (2) Bison was enhanced with a mechanistic fuel cracking model; (3) Mechanistic algorithms were incorporated into various lower-length-scale models to represent fission gases and dislocations in UO2 fuels; (4) Marmot was improved to allow faster testing of mesoscale models using larger problem domains; (5) Component models of reactor piping were developed for use in Relap-7; (6) The mesh generator of Proteus was updated to accept a mesh specification from Moose and equations were formulated for the intermediate-fidelity Proteus-2D1D module; (7) A new pressure solver was implemented in Nek5000 and demonstrated to work 2.5 times faster than the previous solver; (8) Work continued on volume-holdup models for two fuel reprocessing operations: voloxidation and dissolution; (9) Progress was made on a pyroprocessing model and the characterization of pyroprocessing emission signatures; (10) A new 1D groundwater waste transport code was delivered to the used fuel disposition (UFD) campaign; (11) Efforts on waste form modeling included empirical simulation of sodium-borosilicate glass compositions; (12) The Waste team developed three prototypes for modeling hydride reorientation in fuel cladding during very long-term fuel storage; (13) A benchmark demonstration problem (fission gas bubble growth) was modeled to evaluate the capabilities of different meso-scale numerical methods; (14) Work continued on a hierarchical up-scaling framework to model structural materials by directly coupling dislocation dynamics and crystal plasticity; (15) New 'importance sampling' methods were developed and demonstrated to reduce the computational cost of rare-event inference; (16) The survey and evaluation of existing data and knowledge bases was updated for NE-KAMS; (17) The NEAMS Early User Program was launched; (18) The Nuclear Regulatory Commission (NRC) Office of Regulatory Research was introduced to the NEAMS program; (19) The NEAMS …
- Uptakes of CS and SR on San Joaquin Soil Measured Following Astm Method c1733.
- Series of tests were conducted following ASTM Standard Procedure C1733 to evaluate the repeatability of the test and the effects of several test parameters, including the solution-to-soil mass ratio, test duration, pH, and the concentrations of contaminants in the solution. This standard procedure is recommended for measuring the distribution coefficient (K{sub d}) of a contaminant in a specific soil/groundwater system. One objective of the current tests was to identify experimental conditions that can be used in future interlaboratory studies to determine the reproducibility of the test method. This includes the recommendation of a standard soil, the range of contaminant concentrations and solution matrix, and various test parameters. Quantifying the uncertainty in the distribution coefficient that can be attributed to the test procedure itself allows the differences in measured values to be associated with differences in the natural systems being studied. Tests were conducted to measure the uptake of Cs and Sr dissolved as CsCl and Sr(NO{sub 3}){sub 2} in a dilute NaHCO{sub 3}/SiO{sub 2} solution (representing contaminants in a silicate groundwater) by a NIST standard reference material of San Joaquin soil (SRM 2709a). Tests were run to measure the repeatability of the method and the sensitivity of the test response to the reaction time, the mass of soil used (at a constant soil-to-solution ratio), the solution pH, and the contaminant concentration. All tests were conducted in screw-top Teflon vessels at 30 C in an oven. All solutions were passed through a 0.45-{mu}m pore size cellulose acetate membrane filter and stabilized with nitric acid prior to analysis with inductively-coupled plasma mass spectrometry (ICP-MS). Scoping tests with soil in demineralized water resulted in a solution pH of about 8.0 and the release of small amounts of Sr from the soil. Solutions were made with targeted concentrations of 1 x 10{sup -6} m, …
- NEAMS Update. Quarterly Report for October - December 2011.
- The Advanced Modeling and Simulation Office within the DOE Office of Nuclear Energy (NE) has been charged with revolutionizing the design tools used to build nuclear power plants during the next 10 years. To accomplish this, the DOE has brought together the national laboratories, U.S. universities, and the nuclear energy industry to establish the Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program. The mission of NEAMS is to modernize computer modeling of nuclear energy systems and improve the fidelity and validity of modeling results using contemporary software environments and high-performance computers. NEAMS will create a set of engineering-level codes aimed at designing and analyzing the performance and safety of nuclear power plants and reactor fuels. The truly predictive nature of these codes will be achieved by modeling the governing phenomena at the spatial and temporal scales that dominate the behavior. These codes will be executed within a simulation environment that orchestrates code integration with respect to spatial meshing, computational resources, and execution to give the user a common 'look and feel' for setting up problems and displaying results. NEAMS is building upon a suite of existing simulation tools, including those developed by the federal Scientific Discovery through Advanced Computing and Advanced Simulation and Computing programs. NEAMS also draws upon existing simulation tools for materials and nuclear systems, although many of these are limited in terms of scale, applicability, and portability (their ability to be integrated into contemporary software and hardware architectures). NEAMS investments have directly and indirectly supported additional NE research and development programs, including those devoted to waste repositories, safeguarded separations systems, and long-term storage of used nuclear fuel. NEAMS is organized into two broad efforts, each comprising four elements. The quarterly highlights October-December 2011 are: (1) Version 1.0 of AMP, the fuel assembly performance code, was tested on …
- Transportation Research and Analysis Computing Center (TRACC) Year 5 Quarter 4 Progress Report.
- No Description Available.