NEAMS Update. Quarterly Report for October - December 2011. (open access)

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 …
Date: February 16, 2012
Creator: Bradley, K. (Nuclear Engineering Division)
System: The UNT Digital Library
NEAMS update quarterly report for January - March 2012. (open access)

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 …
Date: May 10, 2012
Creator: Bradley, K. S.; Hayes, S.; Pointer, D.; Summers, R.; Sadasivan, P.; Sun, X. et al.
System: The UNT Digital Library
Performance analysis of Darshan 2.2.3 on the Cray XE6 platform. (open access)

Performance analysis of Darshan 2.2.3 on the Cray XE6 platform.

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Date: November 15, 2012
Creator: Carns, P.; Harms, K.; Latham, R. & Ross, R. (Mathematics and Computer Science)
System: The UNT Digital Library
Material and energy flows in the materials production, assembly, and end-of-life stages of the automotive lithium-ion battery life cycle (open access)

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 …
Date: June 21, 2012
Creator: Dunn, J.B.; Gaines, L.; Barnes, M.; Wang, M. & Sullivan, J. (Energy Systems)
System: The UNT Digital Library
Uptakes of CS and SR on San Joaquin Soil Measured Following Astm Method c1733. (open access)

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 …
Date: April 4, 2012
Creator: Ebert, W.L. & Petri, E.T. (Chemical Sciences and Engineering Division)
System: The UNT Digital Library
Ultra-Fast Boriding for Improved Efficiency and Reduced Emissions in Materials Processing Industries (open access)

Ultra-Fast Boriding for Improved Efficiency and Reduced Emissions in Materials Processing Industries

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Date: November 13, 2012
Creator: Erdemir, A.; Eryillmaz, O. & Sista, V. (Energy Systems)
System: The UNT Digital Library
Guidelines for beamline and front-end radiation shielding design at the Advanced Photon Source, rev. 4 (open access)

Guidelines for beamline and front-end radiation shielding design at the Advanced Photon Source, rev. 4

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Date: November 29, 2012
Creator: Fernandez, P. (APS Engineering Support Division)
System: The UNT Digital Library
Verification and validation of the PLTEMP/ANL code for thermal hydraulic analysis of experimental and test reactors (open access)

Verification and validation of the PLTEMP/ANL code for thermal hydraulic analysis of experimental and test reactors

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Date: December 3, 2012
Creator: Kalimullah, M.; Olson, A.O.; Feldman, E.E.; Hanan, N. & Dionne, B. (Nuclear Engineering Division)
System: The UNT Digital Library
Final work plan: environmental site investigation at Sylvan Grove, Kansas. (open access)

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 …
Date: July 15, 2012
Creator: Lafreniere, L. M.
System: The UNT Digital Library
Transportation Research and Analysis Computing Center (TRACC) Year 5 Quarter 4 Progress Report. (open access)

Transportation Research and Analysis Computing Center (TRACC) Year 5 Quarter 4 Progress Report.

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Date: January 23, 2012
Creator: Ley, H. (Energy Systems)
System: The UNT Digital Library
Status report on improved understanding of creep-fatigue damage in advanced materials. (open access)

Status report on improved understanding of creep-fatigue damage in advanced materials.

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Date: August 14, 2012
Creator: Li, M.; Majumdar, S.; Soppet, W. K.; Rink, D. & Natesan, K.
System: The UNT Digital Library
Report on thermal aging effects on tensile properties of advanced austenitic steels. (open access)

Report on thermal aging effects on tensile properties of advanced austenitic steels.

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Date: August 23, 2012
Creator: Li, M.; Natesan, K.; Soppet, W.K.; Listwan, J.T. & Rink, D.L. (Nuclear Engineering Division)
System: The UNT Digital Library
Generation IV Nuclear Energy System Initiative; Air-Cooled Option Rccs Studies and NSTF Preparation. (open access)

Generation IV Nuclear Energy System Initiative; Air-Cooled Option Rccs Studies and NSTF Preparation.

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Date: November 20, 2012
Creator: Lomperski, S.; Pointer, W.D.; Tzanos, C.P.; Wei, T.Y.C. & Kraus, A.R. (Nuclear Engineering Division)
System: The UNT Digital Library
Progress report on dynamic simulation of the Sandia small-scale supercritical carbon dioxide brayton cycle test loop with the ANL plant dynamics code (open access)

Progress report on dynamic simulation of the Sandia small-scale supercritical carbon dioxide brayton cycle test loop with the ANL plant dynamics code

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Date: October 18, 2012
Creator: Moisseytsev, A. & Sienicki, J. J. (Nuclear Engineering Division)
System: The UNT Digital Library
Soil carbon response to rising temperature (open access)

Soil carbon response to rising temperature

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Date: September 7, 2012
Creator: Montz, A.; Kotamarthi, V. R. & Bellout, H.
System: The UNT Digital Library
Resolution of qualification issues for existing structural materials. (open access)

Resolution of qualification issues for existing structural materials.

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Date: August 6, 2012
Creator: Natesan, K.; Li, M.; Majumdar, S.; Nanstad, R. K. & Sham, T. -L.
System: The UNT Digital Library
Sodium pool fire phenomena, sodium pool fire modeling in SOFIRE II, and SOFIRE II calculations for the AFR-100 (open access)

Sodium pool fire phenomena, sodium pool fire modeling in SOFIRE II, and SOFIRE II calculations for the AFR-100

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Date: November 12, 2012
Creator: Sienicki, J. J. & Moisseytsev, A. (Nuclear Engineering Division)
System: The UNT Digital Library
Vehicle Technologies Program Government Performance and Results Act (GPRA) Report for Fiscal Year 2012 (open access)

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 …
Date: August 10, 2012
Creator: Ward, J.; Stephens, T. S. & Birky, A. K.
System: The UNT Digital Library