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Electrofuels Program
8
Field Demonstration of a Membrane Process to Separate Nitrogen From Natural Gas Progress Report
6
Winter Fuels Report
4
ARM Facilities Newsletter
3
BEEST Program
3
Fiscal Year 2000
3
Fiscal Year 2005
3
Fiscal Year 2007
3
Petroleum Marketing Monthly
3
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
2
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Evidence for the decay B0 -> omega omega and search for B0 -> omega phi
None
Date:
March 10, 2014
Creator:
Lees, J. P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Grauges, E.; /Barcelona U., ECM et al.
Object Type:
Article
System:
The UNT Digital Library
Observations of Continuum Depression in Warm Dense Matter with X-Ray Thomson scattering
None
Date:
March 10, 2014
Creator:
Fletcher, L. B.; Kritcher, A. L.; Pak, A.; Ma, T.; Doppner, T.; Fortmann, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Hanford Reach Fall Chinook Redd Monitoring Report for Calendar Year 2013
The U.S. Department of Energy, Richland Operations Office (DOE-RL) conducts ecological monitoring on the Hanford Site to collect and track data needed to ensure compliance with an array of environmental laws, regulations, and policies governing DOE activities. Ecological monitoring data provide baseline information about the plants, animals, and habitat under DOE-RL stewardship at Hanford required for decision-making under the National Environmental Policy Act (NEPA) and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The Hanford Site Comprehensive Land Use Plan (CLUP, DOE/EIS-0222-F) which is the Environmental Impact Statement for Hanford Site activities, helps ensure that DOE-RL, its contractors, and other entities conducting activities on the Hanford Site are in compliance with NEPA.
Date:
February 10, 2014
Creator:
Lindsey, Cole T. & Nugent, John J.
Object Type:
Report
System:
The UNT Digital Library
Multiband Charge-Coupled Device
None
Date:
February 10, 2014
Creator:
Chang, Chu-En; Segal, Julie D.; Roodman, Aaron J.; Howe, Roger T. & Kenney, Christopher J.
Object Type:
Article
System:
The UNT Digital Library
Noise estimation of beam position monitors at RHIC
N/A
Date:
February 10, 2014
Creator:
Shen, X.; Bai, M. & Lee, S. Y.
Object Type:
Report
System:
The UNT Digital Library
The Expanded Capabilities Of The Cementitious Barriers Partnership Software Toolbox Version 2.0 - 14331
The Cementitious Barriers Partnership (CBP) Project is a multi-disciplinary, multi-institutional collaboration supported by the U.S. Department of Energy (US DOE) Office of Tank Waste Management. The CBP program has developed a set of integrated tools (based on state-of-the-art models and leaching test methods) that help improve understanding and predictions of the long-term structural, hydraulic and chemical performance of cementitious barriers used in nuclear applications. The CBP Software Toolbox – “Version 1.0” was released early in FY2013 and was used to support DOE-EM performance assessments in evaluating various degradation mechanisms that included sulfate attack, carbonation and constituent leaching. The sulfate attack analysis predicted the extent and damage that sulfate ingress will have on concrete vaults over extended time (i.e., > 1000 years) and the carbonation analysis provided concrete degradation predictions from rebar corrosion. The new release “Version 2.0” includes upgraded carbonation software and a new software module to evaluate degradation due to chloride attack. Also included in the newer version are a dual regime module allowing evaluation of contaminant release in two regimes – both fractured and un-fractured. The integrated software package has also been upgraded with new plotting capabilities and many other features that increase the “user-friendliness” of the package. …
Date:
January 10, 2014
Creator:
Burns, Heather; Flach, Greg; Smith, Frank; Langton, Christine; Brown, Kevin; Kosson, David et al.
Object Type:
Article
System:
The UNT Digital Library
HPC4Energy Wrapup Report - LDRD 12-ERD-074
None
Date:
January 10, 2014
Creator:
Dube, E
Object Type:
Report
System:
The UNT Digital Library
Low-Density and High Porosity Hydrogen Storage Materials Built from Ultra-Light Elements. Final Scientific/Technical Report
A number of significant advances have been achieved, opening up new opportunities for the synthetic development of novel porous materials and their energy-related applications including gas storage and separation and catalysis. These include lithium-based metal-organic frameworks, magnesium-based metal-organic frameworks, and high gas uptake in porous frameworks with high density of open donor sites.
Date:
January 10, 2014
Creator:
Feng, Pingyun
Object Type:
Report
System:
The UNT Digital Library
Radioactive Demonstration Of Mineralized Waste Forms Made From Hanford Low Activity Waste (Tank SX-105 And AN-103) By Fluidized Bed Steam Reformation
One of the immobilization technologies under consideration as a Supplemental Treatment for Hanford’s Low Activity Waste (LAW) is Fluidized Bed Steam Reforming (FBSR). The FBSR technology forms a mineral waste form at moderate processing temperatures thus retaining and atomically bonding the halides, sulfates, and technetium in the mineral phases (nepheline, sodalite, nosean, carnegieite). Additions of kaolin clay are used instead of glass formers and the minerals formed by the FBSR technology offers (1) atomic bonding of the radionuclides and constituents of concern (COC) comparable to glass, (2) short and long term durability comparable to glass, (3) disposal volumes comparable to glass, and (4) higher Na2O and SO{sub 4} waste loadings than glass. The higher FBSR Na{sub 2}O and SO{sub 4} waste loadings contribute to the low disposal volumes but also provide for more rapid processing of the LAW. Recent FBSR processing and testing of Hanford radioactive LAW (Tank SX-105 and AN-103) waste is reported and compared to previous radioactive and non-radioactive LAW processing and testing.
Date:
January 10, 2014
Creator:
Jantzen, Carol M.; Herman, Connie; Crawford, Charles; Bannochie, Christopher; Burket, Paul; Daniel, Gene et al.
Object Type:
Article
System:
The UNT Digital Library
Corrosion in Supercritical carbon Dioxide: Materials, Environmental Purity, Surface Treatments, and Flow Issues
The supercritical CO{sub 2} Brayton cycle is gaining importance for power conversion in the Generation IV fast reactor system because of its high conversion efficiencies. When used in conjunction with a sodium fast reactor, the supercritical CO{sub 2} cycle offers additional safety advantages by eliminating potential sodium-water interactions that may occur in a steam cycle. In power conversion systems for Generation IV fast reactors, supercritical CO{sub 2} temperatures could be in the range of 30°C to 650°C, depending on the specific component in the system. Materials corrosion primarily at high temperatures will be an important issue. Therefore, the corrosion performance limits for materials at various temperatures must be established. The proposed research will have four objectives centered on addressing corrosion issues in a high-temperature supercritical CO{sub 2} environment: Task 1: Evaluation of corrosion performance of candidate alloys in high-purity supercritical CO{sub 2}: The following alloys will be tested: Ferritic-martensitic Steels NF616 and HCM12A, austenitic alloys Incoloy 800H and 347 stainless steel, and two advanced concept alloys, AFA (alumina forming austenitic) steel and MA754. Supercritical CO{sub 2} testing will be performed at 450°C, 550°C, and 650°C at a pressure of 20 MPa, in a test facility that is already in place …
Date:
December 10, 2013
Creator:
Sridharan, Kumar & Anderson, Mark
Object Type:
Report
System:
The UNT Digital Library
Development of a Very Dense Liquid Cooled Compute Platform
The objective of this project was to design and develop a prototype very energy efficient high density compute platform with 100% pumped refrigerant liquid cooling using commodity components and high volume manufacturing techniques. Testing at SLAC has indicated that we achieved a DCIE of 0.93 against our original goal of 0.85. This number includes both cooling and power supply and was achieved employing some of the highest wattage processors available.
Date:
December 10, 2013
Creator:
Hughes, Phillip N. & Lipp, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Hadron Molecules Revisted
N/A
Date:
December 10, 2013
Creator:
R., Longacre
Object Type:
Report
System:
The UNT Digital Library
INTERPRETATION OF AT-LINE SPECTRA FROM AFS-2 BATCH #3 FERROUS SULFAMATE TREATMENT
Spectra from the “at-line” spectrometer were obtained during the ferrous sulfamate (FS) valence adjustment step of AFS-2 Batch #3 on 9/18/2013. These spectra were analyzed by mathematical principal component regression (PCR) techniques to evaluate the effectiveness of this treatment. Despite the complications from Pu(IV), we conclude that all Pu(VI) was consumed during the FS treatment, and that by the end of the treatment, about 85% was as Pu(IV) and about 15% was as Pu(III). Due to the concerns about the “odd” shape of the Pu(IV) peak and the possibility of this behavior being observed in the future, a follow-up sample was sent to SRNL to investigate this further. Analysis of this sample confirmed the previous results and concluded that it “odd” shape was due to an intermediate acid concentration. Since the spectral evidence shows complete reduction of Pu(VI) we conclude that it is appropriate to proceed with processing of this the batch of feed solution for HB-Line including the complexation of the fluoride with aluminum nitrate.
Date:
December 10, 2013
Creator:
Kyser, E. & O'Rourke, P.
Object Type:
Report
System:
The UNT Digital Library
BWR Anticipated Transients Without Scram Leading to Emergency Depressurization
Determines the effectiveness of automatic and operator actions of Anticipated transients without scram (ATWS).
Date:
November 10, 2013
Creator:
Cheng, Lap-Yan; Baek, Joo-Seok; Cuadra, Arantxa; Aronson, Arnold; Diamond, David & Yarsky, Peter
Object Type:
Article
System:
The UNT Digital Library
BWR Anticipated Transients Without Scram Leading to Instability
Anticipated transients without scram (ATWS) in aboiling water reactor (BWR) were simulated in order to understand reactor response and determine the effectiveness of automatic and operator actions to mitigate this beyond-design-basis accident. The events of interest herein are initiated by a turbine trip when the reactor is operating in the expanded operating domainMELLLA+ [maximum extended load line limit plus]. In these events the reactor may initially be at up to 120% of the original licensed thermal power (OLTP) and at flow rates as low as 80% of rated.For these (and similar) ATWS events the concern isthat when the reactor power decreases in response to a dual recirculation pump trip, the core will become unstable and large amplitude oscillations will begin. The occurrence of these power oscillations, if left unmitigated, may result in fuel damage, and the amplitude of the poweroscillations may hamper the effectiveness of the injection of dissolved neutron absorber through the standby liquid control system (SLCS).
Date:
November 10, 2013
Creator:
Cheng, Lap-Yan; Baek, Joo-Seok; Cuadra, Arantxa; Aronson, Arnold; Diamond, David & Yarsky, Peter
Object Type:
Article
System:
The UNT Digital Library
TRACE Model for Simulation of Anticipated Transients Without Scram in a BWR
A TRACE model has been developed for using theTRACE/PARCS computational package [1, 2] to simulate anticipated transients without scram (ATWS) events in a boiling water reactor (BWR). The model represents a BWR/5 housed in a Mark II containment. The reactor and the balance of plant systems are modeled in sufficient detail to enable the evaluation of plant responses and theeffectiveness of automatic and operator actions tomitigate this beyond design basis accident.The TRACE model implements features thatfacilitate the simulation of ATWS events initiated by turbine trip and closure of the main steam isolation valves (MSIV). It also incorporates control logic to initiate actions to mitigate the ATWS events, such as water levelcontrol, emergency depressurization, and injection of boron via the standby liquid control system (SLCS). Two different approaches have been used to model boron mixing in the lower plenum of the reactor vessel: modulate coolant flow in the lower plenum by a flow valve, and use control logic to modular.
Date:
November 10, 2013
Creator:
Cheng, Lap-Yan; Baek,Joo-Seok; Cuadra,Arantxa; Aronson, Arnold; Diamond, David & Yarsky, Peter
Object Type:
Article
System:
The UNT Digital Library
TRACE/PARCS Core Modeling of a BWR/5 for Accident Analysis of ATWS Events
The TRACE/PARCS computational package [1, 2] isdesigned to be applicable to the analysis of light water reactor operational transients and accidents where the coupling between the neutron kinetics (PARCS) and the thermal-hydraulics and thermal-mechanics (TRACE) is important. TRACE/PARCS has been assessed for itsapplicability to anticipated transients without scram(ATWS) [3]. The challenge, addressed in this study, is to develop a sufficiently rigorous input model that would be acceptable for use in ATWS analysis. Two types of ATWS events were of interest, a turbine trip and a closure of main steam isolation valves (MSIVs). In the first type, initiated by turbine trip, the concern is that the core will become unstable and large power oscillations will occur. In the second type,initiated by MSIV closure,, the concern is the amount of energy being placed into containment and the resulting emergency depressurization. Two separate TRACE/PARCS models of a BWR/5 were developed to analyze these ATWS events at MELLLA+ (maximum extended load line limit plus)operating conditions. One model [4] was used for analysis of ATWS events leading to instability (ATWS-I);the other [5] for ATWS events leading to emergency depressurization (ATWS-ED). Both models included a large portion of the nuclear steam supply system and controls, and …
Date:
November 10, 2013
Creator:
Cuadra, Arantxa; Baek,Joo-Seok; Cheng, Lap-Yan; Aronson, Arnold; Diamond, David & Yarsky, Peter
Object Type:
Article
System:
The UNT Digital Library
ACETYL-COA CLEAVAGE AND SYNTHESIS IN METHANOGENS; CHARACTERIZATION OF SUBOMPONENT INTERACTIONS IN THE ACETYL-COA DECARBONYLASE/SYNTHASE MULTIENZYME COMPLEX
The work reported resulted in much new insight into unusual mechanisms of metalloenzymes involved in anaerobic metabolism in methanogens, other archaea, and bacteria.
Date:
October 10, 2013
Creator:
GRAHAM, DAVID A.
Object Type:
Report
System:
The UNT Digital Library
Benchmark Imagery for Assessing Geospatial Semantic Content Extraction Algorithms Final Report
None
Date:
October 10, 2013
Creator:
White, W T; Pope, P A; Goforth, J W; Gaines, L R; Prasad, L; Hojnacki, S M et al.
Object Type:
Report
System:
The UNT Digital Library
Computational Studies of the Skid Test: Evaluation of the Non-Shock Ignition of LX-10 Using HERMES
None
Date:
October 10, 2013
Creator:
White, B. W.; Springer, H. K. & Reaugh, J. E.
Object Type:
Article
System:
The UNT Digital Library
Conceptual Design of the CLIC Damping Rings
In order to achieve high luminosity in CLIC, ultra-low emittance bunches have to be generated in both electron and positron damping rings. To achieve this goal, big energy loss per turn in the wigglers has to be compensated by the RF system. This results in very strong beam loading transients affecting the longtudinal bunch position and bunch length. In this paper, the conceptual design of the RF system for the CLIC damping ring (DR) is presented. Baseline for the CLIC conceptual design report (CDP) is discussed and the corresponding requirements for the cavities and the RF power sources are presented in order to meet stringent tolerances on the bunch-to-bunch phase and bunch length variations.
Date:
October 10, 2013
Creator:
Boland, M. J.; Korostelev, M.; Palmer, M. A.; Koukovini, E.; Antoniou, F.; Chiggiato, P. et al.
Object Type:
Article
System:
The UNT Digital Library
DATA SHARING REPORT CHARACTERIZATION OF POPULATION 7: PERSONAL PROTECTIVE EQUIPMENT, DRY ACTIVE WASTE, AND MISCELLANEOUS DEBRIS, SURVEILLANCE AND MAINTENANCE PROJECT OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE
The U.S. Department of Energy (DOE) Oak Ridge Office of Environmental Management (EM-OR) requested that Oak Ridge Associated Universities (ORAU), working under the Oak Ridge Institute for Science and Education (ORISE) contract, provide technical and independent waste management planning support under the American Recovery and Reinvestment Act (ARRA). Specifically, DOE EM-OR requested that ORAU plan and implement a sampling and analysis campaign targeting certain URS|CH2M Oak Ridge, LLC (UCOR) surveillance and maintenance (S&M) process inventory waste. Eight populations of historical and reoccurring S&M waste at the Oak Ridge National Laboratory (ORNL) have been identified in the Waste Handling Plan for Surveillance and Maintenance Activities at the Oak Ridge National Laboratory, DOE/OR/01-2565&D2 (WHP) (DOE 2012) for evaluation and processing to determine a final pathway for disposal. Population 7 (POP 7) consists of 56 containers of aged, low-level and potentially mixed S&M waste that has been staged in various locations around ORNL. Several of these POP 7 containers primarily contain personal protective equipment (PPE) and dry active waste (DAW), but may contain other miscellaneous debris. This data sharing report addresses the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) specified waste in a 13-container subpopulation (including eight steel boxes, three …
Date:
October 10, 2013
Creator:
Harpenau, Evan M
Object Type:
Report
System:
The UNT Digital Library
DEPLOYMENT OF THE BULK TRITIUM SHIPPING PACKAGE
A new Bulk Tritium Shipping Package (BTSP) was designed by the Savannah River National Laboratory to be a replacement for a package that has been used to ship tritium in a variety of content configurations and forms since the early 1970s. The BTSP was certified by the National Nuclear Safety Administration in 2011 for shipments of up to 150 grams of Tritium. Thirty packages were procured and are being delivered to various DOE sites for operational use. This paper summarizes the design features of the BTSP, as well as associated engineered material improvements. Fabrication challenges encountered during production are discussed as well as fielding requirements. Current approved tritium content forms (gas and tritium hydrides), are reviewed, as well as, a new content, tritium contaminated water on molecular sieves. Issues associated with gas generation will also be discussed.
Date:
October 10, 2013
Creator:
Blanton, P.
Object Type:
Article
System:
The UNT Digital Library
Extraction of the Lie Map from Realistic 3D Magnetic Field Map
None
Date:
October 10, 2013
Creator:
Li, Yongjun; /Brookhaven & Huang, Xiaobiao
Object Type:
Article
System:
The UNT Digital Library