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Simulation of Scraping on the AGS Beam Dump
N/A
Date:
October 28, 2013
Creator:
Gardner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Preliminary formation analysis for compressed air energy storage in depleted natural gas reservoirs : a study for the DOE Energy Storage Systems Program.
The purpose of this study is to develop an engineering and operational understanding of CAES performance for a depleted natural gas reservoir by evaluation of relative permeability effects of air, water and natural gas in depleted natural gas reservoirs as a reservoir is initially depleted, an air bubble is created, and as air is initially cycled. The composition of produced gases will be evaluated as the three phase flow of methane, nitrogen and brine are modeled. The effects of a methane gas phase on the relative permeability of air in a formation are investigated and the composition of the produced fluid, which consists primarily of the amount of natural gas in the produced air are determined. Simulations of compressed air energy storage (CAES) in depleted natural gas reservoirs were carried out to assess the effect of formation permeability on the design of a simple CAES system. The injection of N2 (as a proxy to air), and the extraction of the resulting gas mixture in a depleted natural gas reservoir were modeled using the TOUGH2 reservoir simulator with the EOS7c equation of state. The optimal borehole spacing was determined as a function of the formation scale intrinsic permeability. Natural gas reservoir …
Date:
June 1, 2013
Creator:
Gardner, William Payton
Object Type:
Report
System:
The UNT Digital Library
Proposal for a muSR facility at BNL
N/A
Date:
May 12, 2013
Creator:
M., Blaskiewicz; Alessi, J.; Brown, K.; Fischer, W.; Gardner, C.; Huang, H. et al.
Object Type:
Article
System:
The UNT Digital Library
When whole-genome alignments just won't work: kSNP software for alignment-free SNP discovery, phylogenetics, and annotation of microbial genomes
None
Date:
June 18, 2013
Creator:
Gardner, S N & Hall, B G
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Differential Cross-Sections of Inclusive, Prompt And Non-Prompt $J/\psi$ Production in Proton-Proton Collisions at $\sqrt{s}=7$ TeV
None
Date:
June 4, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the production cross section for W-bosons in association with jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
None
Date:
June 11, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Inclusive $W^\pm$ and Z/Gamma Cross Sections in the Electron and Muon Decay Channels in $Pp$ Collisions at $\sqrt{s}=7$ TeV with the ATLAS Detector
None
Date:
May 29, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
UNDERSTANDING FLOW OF ENERGY IN BUILDINGS USING MODAL ANALYSIS METHODOLOGY
It is widely understood that energy storage is the key to integrating variable generators into the grid. It has been proposed that the thermal mass of buildings could be used as a distributed energy storage solution and several researchers are making headway in this problem. However, the inability to easily determine the magnitude of the building’s effective thermal mass, and how the heating ventilation and air conditioning (HVAC) system exchanges thermal energy with it, is a significant challenge to designing systems which utilize this storage mechanism. In this paper we adapt modal analysis methods used in mechanical structures to identify the primary modes of energy transfer among thermal masses in a building. The paper describes the technique using data from an idealized building model. The approach is successfully applied to actual temperature data from a commercial building in downtown Boise, Idaho.
Date:
July 1, 2013
Creator:
Gardner, John; Heglund, Kevin; Wymelenberg, Kevin Van Den & Rieger, Craig
Object Type:
Article
System:
The UNT Digital Library
First RHIC collider test operation at 2.5GeV beam energy
N/A
Date:
May 12, 2013
Creator:
Montag, C.; Ahrens, L. A.; Bai, M.; Beebe-Wang, J.; Blaskiewicz, M.; Blackler, I. et al.
Object Type:
Article
System:
The UNT Digital Library
Science and Technology Review April/May 2013
None
Date:
March 1, 2013
Creator:
Simon, A J
Object Type:
Report
System:
The UNT Digital Library
RHIC Performance for FY1012 Heavy Ion Run
N/A
Date:
May 12, 2013
Creator:
Y., Luo; Alessi, J.; Bai, M.; Beebe-Wang, J.; Blackler, I.; Blaskiewicz, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Fielding the magnetically applied pressure-shear technique on the Z accelerator (completion report for MRT 4519).
The recently developed Magnetically Applied Pressure-Shear (MAPS) experimental technique to measure material shear strength at high pressures on magneto-hydrodynamic (MHD) drive pulsed power platforms was fielded on August 16, 2013 on shot Z2544 utilizing hardware set A0283A. Several technical and engineering challenges were overcome in the process leading to the attempt to measure the dynamic strength of NNSA Ta at 50 GPa. The MAPS technique relies on the ability to apply an external magnetic field properly aligned and time correlated with the MHD pulse. The load design had to be modified to accommodate the external field coils and additional support was required to manage stresses from the pulsed magnets. Further, this represents the first time transverse velocity interferometry has been applied to diagnose a shot at Z. All subsystems performed well with only minor issues related to the new feed design which can be easily addressed by modifying the current pulse shape. Despite the success of each new component, the experiment failed to measure strength in the samples due to spallation failure, most likely in the diamond anvils. To address this issue, hydrocode simulations are being used to evaluate a modified design using LiF windows to minimize tension in the …
Date:
September 1, 2013
Creator:
Alexander, C. Scott; Haill, Thomas A.; Dalton, Devon Gardner; Rovang, Dean Curtis & Lamppa, Derek C.
Object Type:
Report
System:
The UNT Digital Library
Status and Plans for the Polarized Hadron Collider RHIC
N/A
Date:
May 12, 2013
Creator:
Bai, M.; Ahrens, L.; Aschenauer, E. C.; Atoian, G.; Beebe-Wang, J.; Blaskiewicz, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Science and Technology Review June 2013
None
Date:
May 2, 2013
Creator:
Simon, A. J.
Object Type:
Report
System:
The UNT Digital Library
MuSR Beam Line Design Studies
N/A
Date:
December 13, 2013
Creator:
MacKay W. W.; Fischer, W.; Pile, P. & Blaskiewicz, M.
Object Type:
Report
System:
The UNT Digital Library
Photovoltaic Module Reliability Workshop 2010: February 18-19, 2010
NREL's Photovoltaic (PV) Module Reliability Workshop (PVMRW) brings together PV reliability experts to share information, leading to the improvement of PV module reliability. Such improvement reduces the cost of solar electricity and promotes investor confidence in the technology--both critical goals for moving PV technologies deeper into the electricity marketplace.
Date:
November 1, 2013
Creator:
Kurtz, J.
Object Type:
Report
System:
The UNT Digital Library
Ultra-Relativistic Magnetic Monopole Search with the ANITA-II Balloon-Borne Radio Interferometer
None
Date:
June 18, 2013
Creator:
Detrixhe, M.; Besson, D.; Gorham, P. W.; Allison, P.; Baughmann, B.; Beatty, J. J. et al.
Object Type:
Article
System:
The UNT Digital Library
Beyond Renewable Portfolio Standards: An Assessment of Regional Supply and Demand Conditions Affecting the Future of Renewable Energy in the West; Report and Executive Summary
This study assesses the outlook for utility-scale renewable energy development in the West once states have met their renewable portfolio standard (RPS) requirements. In the West, the last state RPS culminates in 2025, so the analysis uses 2025 as a transition point on the timeline of RE development. Most western states appear to be on track to meet their final requirements, relying primarily on renewable resources located relatively close to the customers being served. What happens next depends on several factors including trends in the supply and price of natural gas, greenhouse gas and other environmental regulations, consumer preferences, technological breakthroughs, and future public policies and regulations. Changes in any one of these factors could make future renewable energy options more or less attractive.
Date:
August 1, 2013
Creator:
Hurlbut, D. J.; McLaren, J. & Gelman, R.
Object Type:
Report
System:
The UNT Digital Library
Trade Adjustment Assistance (TAA) and Its Role in U.S. Trade Policy
This report discusses the role of TAA in U.S. trade policy, from its inception as a legislative option in the early 1950s, to its core roles as a cornerstone of modern trade policy that many argue has served to promote the long-term U.S. trade liberalization agenda.
Date:
January 9, 2013
Creator:
Hornbeck, J. F.
Object Type:
Report
System:
The UNT Digital Library
ESTIMATING IMPURITIES IN SURPLUS PLUTONIUM FOR DISPOSITION
The United States holds at least 61.5 metric tons (MT) of plutonium that is permanently excess to use in nuclear weapons programs, including 47.2 MT of weapons-grade plutonium. Surplus inventories will be stored safely by the Department of Energy (DOE) and then transferred to facilities that will prepare the plutonium for permanent disposition. The Savannah River National Laboratory (SRNL) operates a Feed Characterization program for the Office of Fissile Materials Disposition of the National Nuclear Security Administration and the DOE Office of Environmental Management. Many of the items that require disposition are only partially characterized, and SRNL uses a variety of techniques to predict the isotopic and chemical properties that are important for processing through the Mixed Oxide Fuel Fabrication Facility and alternative disposition paths. Recent advances in laboratory tools, including Prompt Gamma Analysis and Peroxide Fusion treatment, provide data on the existing inventories that will enable disposition without additional, costly sampling and destructive analysis.
Date:
July 17, 2013
Creator:
Allender, J. & Moore, E.
Object Type:
Article
System:
The UNT Digital Library
Design of a Scanning Gate Microscope for Mesoscopic Electron Systems in a Cryogen-Free Dilution Refrigerator
None
Date:
January 29, 2013
Creator:
Pelliccione, M.; Sciambi, A.; Bartel, J.; Keller, A. J. & Goldhaber-Gordon, D.
Object Type:
Article
System:
The UNT Digital Library
Climate Change and Agriculture in the United States: Effects and Adaptation
This is a report by the USDA as climate change relates to its affect on livestock and agriculture.
Date:
February 2013
Creator:
Walthall, C. L.; Hatfield, J.; Backlund, P.; Lengnick, L.; Marshall, E.; Walsh, M. et al.
Object Type:
Text
System:
The UNT Digital Library
Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbons: Dilute-Acid and Enzymatic Deconstruction of Biomass to Sugars and Biological Conversion of Sugars to Hydrocarbons
This report describes one potential conversion process to hydrocarbon products by way of biological conversion of lingnocellulosic-dervied sugars. The process design converts biomass to a hydrocarbon intermediate, a free fatty acid, using dilute-acid pretreatement, enzymatic saccharification, and bioconversion. Ancillary areas--feed handling, hydrolysate conditioning, product recovery and upgrading (hydrotreating) to a final blendstock material, wastewater treatment, lignin combusion, and utilities--are also included in the design.
Date:
October 1, 2013
Creator:
Davis, R.; Tao, L.; Tan, E. C. D.; Biddy, M. J.; Beckham, G. T.; Scarlata, C. et al.
Object Type:
Report
System:
The UNT Digital Library
Status of head-on beam-beam compensation in RHIC
N/A
Date:
March 18, 2013
Creator:
Fischer, W.; Altinbas, Z.; Anerella, M.; Blaskiewicz, M.; Bruno, D.; Costanzo, M. et al.
Object Type:
Article
System:
The UNT Digital Library