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Np Analysis of Freshly Separated Material

Description: Np analysis has historically relied upon the Pa/Np secular equilibrium for quantitative results. The Savannah River Site has recently undertaken a mission concerning Np. In this application, Np is separated from Pa, packaged, possibly mixed with other batches, and assayed. The fresh separation and mixing of batches prevents the use of the Pa133 prodigy peaks for assay. This effort was a developmental project novel in the DOE complex. This paper discusses the challenges encountered in the design… more
Date: June 28, 2004
Creator: HODGE, CHRISTOPHERA.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Estimating Energy and Water Losses in Residential Hot Water Distribution Systems

Description: Residential single family building practice currently ignores the losses of energy and water caused by the poor design of hot water systems. These losses include; the waste of water while waiting for hot water to get to the point of use; the wasted heat as water cools down in the distribution system after a draw; and the energy needed to reheat water that was already heated once before. Average losses of water are estimated to be 6.35 gallons (24.0 L) per day. (This is water that is rundown the… more
Date: February 26, 2005
Creator: Lutz, James
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Design and characterization of a neutralized-transport experiment for heavy-ion fusion

Description: In heavy-ion inertial-confinement fusion systems, intense beams of ions must be transported from the exit of the final focus magnet system through the fusion chamber to hit millimeter-sized spots on the target. Effective plasma neutralization of intense ion beams in this final transport is essential for a heavy-ion fusion power plant to be economically competitive. The physics of neutralized drift has been studied extensively with particle-in-cell simulations. To provide quantitative comparison… more
Date: March 14, 2004
Creator: Henestroza, E.; Eylon, S.; Roy, P. K.; Yu, S. S.; Anders, A.; Bieniosek, F. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Overview of US Department of Energy Total System Performance Assessment for a Yucca Mountain Repository

Description: Total System Performance Assessment (TSPA) is the use of numerical models representing natural processes to evaluate the future performance of natural and engineered components of the repository system. Future performance, in this context, means performance after the operational period and the emplacement of final seals. The basis for developing a TSPA is data collected during surface-based, underground, and laboratory tests and studies; measurements and interpretations by scientific experts; s… more
Date: June 21, 2004
Creator: Luik, A. Van & Levich, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ventilation Model

Description: The purpose of this analysis and model report (AMR) for the Ventilation Model is to analyze the effects of pre-closure continuous ventilation in the Engineered Barrier System (EBS) emplacement drifts and provide heat removal data to support EBS design. It will also provide input data (initial conditions, and time varying boundary conditions) for the EBS post-closure performance assessment and the EBS Water Distribution and Removal Process Model. The objective of the analysis is to develop, desc… more
Date: November 4, 1999
Creator: Yang, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies in ion source development for application in heavy ion fusion

Description: The overall purpose of these experiments is to contribute to the development of ion injector technology in order to produce a driver for use in a heavy-ion-fusion (HIF) power generating facility. The overall beam requirements for HIF are quite demanding; a short list of the constraints is the following: (1) Low cost (a large portion of overall cost will come from the beam system); (2) Bright, low emittance beam; (3) Total beam energy 5MJ; (4) Spot size 3mm (radius); (5) Pulse Duration 10ns; (6)… more
Date: May 30, 2004
Creator: Kapica, Jonathan G.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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NEW SYSTEMS FOR WASTE PROCESSING OF TRITIUM-CONTAINING GASESAT THE SAVANNAH RIVER SITE

Description: A project to relocate and consolidate tritium processing activities from old, second generation buildings to newer buildings was initiated in the late 1990's at the Savannah River Site (SRS). This project replaces two existing gaseous process waste treatment systems currently operating in an older facility. The new waste gas processing systems located in the newer facility use recent technology, including metal getters, an innovative permeator design, and TCAP--Thermal Cycling Absorption Proces… more
Date: August 15, 2004
Creator: WILLIAM, JACOBS
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Managing Heat in a Repository at Yucca Mountain

Description: When radioactive elements decay, one result is heat. Because it will contain waste packages with many tons of decaying spent nuclear fuel and high-level radioactive waste, the underground repository proposed for Yucca Mountain will generate heat for thousands of years. Engineers with the Yucca Mountain Project call the amount of heat generated by this radioactive decay within a particular area a ''thermal load''. The number, size and contents of the waste packages placed in the repository will … more
Date: June 2000
Creator: United States. Department of Energy.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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VALIDATION OF A NEW SOIL VOC SAMPLER: PERFORMANCE OF THE EN CORE SAMPLER AT -7 C AND -21 C AND DEVELOPMENT OF THE ACCU CORE SUBSURFACE SAMPLING/STORAGE DEVICE FOR VOC ANALYSIS

Description: Soil sampling and storage practices for volatile organic analysis must be designed to minimize loss of volatile organic compounds (VOCs) from samples. The En Core{reg_sign} sampler is designed to collect and store soil samples in a manner that minimizes loss of contaminants due to volatilization and/or biodegradation. An ASTM International (ASTM) standard practice, D 6418, Standard Practice for Using the Disposable En Core Sampler for Sampling and Storing Soil for Volatile Organic Analysis, des… more
Date: May 1, 2004
Creator: Sorini, Susan S.; Schabron, John F. & Jr., Joseph F. Rovani
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Robotics Scoping Study to Evaluate Advances in Robotics Technologies that Support Enhanced Efficiencies for Yucca Mountain Repository Operations

Description: This paper presents an evaluation of robotics and remote handling technologies that have the potential to increase the efficiency of handling waste packages at the proposed Yucca Mountain High-Level Nuclear Waste Repository. It is expected that increased efficiency will reduce the cost of operations. The goal of this work was to identify technologies for consideration as potential projects that the U.S. Department of Energy Office of Civilian Radioactive Waste Management, Office of Science and … more
Date: March 17, 2005
Creator: Burgess, T.; Noakes, M. & Spampinato, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Engineering Development of Slurry Bubble Column Reactor (SBCR) Technology: Final Report, Volume 1

Description: The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubbl… more
Date: September 30, 2002
Creator: Toseland, Bernard A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CHARACTERIZATION OF CONDITIONS OF NATURAL GAS STORAGE RESERVOIRS AND DESIGN AND DEMONSTRATION OF REMEDIAL TECHNIQUES FOR DAMAGE MECHANISMS FOUND THEREIN

Description: There are four primary goals of contract DE-FG26-99FT40703: (1) We seek to better understand how and why two damage mechanisms--(1) inorganic precipitants, and (2) hydrocarbons and organic residues, occur at the reservoir/wellbore interface in gas storage wells. (2) We plan on testing potential prevention and remediation strategies related to these two damage mechanisms in the laboratory. (3) We expect to demonstrate in the field, cost-effective prevention and remediation strategies that labora… more
Date: February 1, 2003
Creator: Frantz, J. H. & Brown, K. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ENRICO FERMI FAST REACTOR SPENT NUCLEAR FUEL CRITICALLY CALCULATIONS: INTACT MODE

Description: The purpose of this calculation is to perform intact mode and partially degraded mode criticality evaluations of the Department of Energy's (DOE) Enrico Fermi (EF) Spent Nuclear Fuel (SNF) co-disposed in a 5 Defense High-Level Waste (5-DHLW) Waste Package (WP) and emplaced in a Monitored Geologic Repository (MGR). The criticality evaluations estimate the values of the effective neutron multiplication factor, k{sub eff}, a measure of nuclear criticality potential, for the 5-DHLW/DOE SNF WP with … more
Date: April 12, 1999
Creator: Mobasheran, A.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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HVAC component data modeling using industry foundation classes

Description: The Industry Foundation Classes (IFC) object data model of buildings is being developed by the International Alliance for Interoperability (IAI). The aim is to support data sharing and exchange in the building and construction industry across the life-cycle of a building. This paper describes a number of aspects of a major extension of the HVAC part of the IFC data model. First is the introduction of a more generic approach for handling HVAC components. This includes type information, which cor… more
Date: July 1, 2002
Creator: Bazjanac, Vladimir; Forester, James; Haves, Philip; Sucic, Darko & Xu, Peng
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CIRCE, the Coherent Infrared Center at the ALS

Description: CIRCE (Coherent InfraRed CEnter) is a proposal for a new electron storage ring to be built at the Advanced Light Source (ALS) of the Lawrence Berkeley National Laboratory (LBNL). The ring design is optimized for the generation of coherent synchrotron radiation (CSR) in the terahertz frequency range. Among others, CIRCE operation includes three interesting CSR modes: ultra stable, femtosecond laser slicing and broadband bursting. CSR allows CIRCE to generate an extremely high flux in the teraher… more
Date: June 29, 2004
Creator: Byrd, John M.; De Santis, Stefano; Jung, Jin-Young; Li, Derun; Martin, Michael C.; McKinney, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Session 2: Review of the 500 KW Direct Contact Geothermal Plant at East Mesa

Description: The concept of a binary power cycle utilizing direct contact heat exchangers was first proposed by Jacobs and Boehm in 1973 for use with geothermal brines. This concept was proposed primarily to overcome difficulties associated with the fouling and scaling nature of many moderate temperature brines. However, thermodynamic analyses and subsequent economic analyses clearly pointed to possible economic advantages over conventional binary cycles even with non-fouling, non-scaling brines. For a dire… more
Date: December 1, 1983
Creator: Nichols, Kenneth E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Improvement of Safety Assessment Methodologies for Near Surface Disposal Facilities

Description: The International Atomic Energy Agency (IAEA) Coordinated research program ''Improvement of Safety Assessment Methodologies for Near Surface Disposal Facilities'' (ISAM) has developed improved safety assessment methodology for near surface disposal facilities. The program has been underway for three years and has included around 75 active participants from 40 countries. It has also provided examples for application to three safety cases--vault, Radon type and borehole radioactive waste disposal… more
Date: February 26, 2002
Creator: Batandjieva, B. & Torres-Vidal, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Spectroelectrochemical Sensor for Technetium Applicable to the Vadose Zone

Description: The general aim of this project is to continue the design and implementation of a new sensor technology that offers the unprecedented levels of specificity needed for analysis of the complex chemical mixtures found at DOE sites nationwide. The new sensor concept combines the elements of electrochemistry, spectroscopy and selective partitioning into a single device that provides three levels of selectivity. The specific goal of this project is the development of a sensor for technetium (Tc) that… more
Date: June 1, 2000
Creator: Heineman, William R.; Seliskar, Carl J.; Bryan, Samuel A. & Hubler, Timothy L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Field Test Program to Develop Comprehensive Design, Operating and Cost Data for Mercury Control Systems on Non-Scrubbed Coal-Fired Boilers, Quarterly Technical Report: October-December 2003

Description: With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Mercury is known to have toxic effects on the nervous system of humans and wildlife. Although it exists only in trace amounts in coal, mercury is released when coal burns and can accumulate on land and in water. In water, bacteria transform the… more
Date: March 2, 2003
Creator: Schlager, Richard & Millar, Tom
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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SOLID OXIDE FUEL CELL MANUFACTURING COST MODEL: SIMULATING RELATIONSHIPS BETWEEN PERFORMANCE, MANUFACTURING, AND COST OF PRODUCTION

Description: The successful commercialization of fuel cells will depend on the achievement of competitive system costs and efficiencies. System cost directly impacts the capital equipment component of cost of electricity (COE) and is a major contributor to the O and M component. The replacement costs for equipment (also heavily influenced by stack life) is generally a major contributor to O and M costs. In this project, they worked with the SECA industrial teams to estimate the impact of general manufacturi… more
Date: April 20, 2004
Creator: Carlson, Eric J.; Yang, Yong & Fulton, Chandler
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AN ADVANCED LIQUID WASTE TREATMENT SYSTEM USING A HIGH EFFICIENCY SOLIDIFICATION TECHNIQUE

Description: An advanced system using High Efficiency Solidification Technology (HEST) was developed to treat PWR liquid waste and the first unit is operating in Taiwan (1) and a detailed design is being carried out for the second unit in Japan. The HEST system consists of two subsystems, a super-concentration subsystem and a solidification subsystem. The super-concentration subsystem is able to concentrate the waste solution to a total boron content as high as 130,000 ppm prior to solidification. The highe… more
Date: February 27, 2003
Creator: Kikuchi, M.; Hirayama, S.; Noshita, K.; Yatou, Y. & Huang, C. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High Resolution Prediction of Gas Injection Process Performance for Heterogeneous Reservoirs Quarterly Report

Description: Gas injection in oil reservoirs offers huge potential for improved oil recovery. However, successful design of a gas injection process requires a detailed understanding of a variety of different significant processes, including the phase behavior of multicomponent mixtures and the approach to multi-contact miscibility in the reservoir, the flow of oil, water and gas underground, and the interaction of phase behavior reservoir heterogeneity and gravity on overall performance at the field scale. … more
Date: December 31, 2000
Creator: Hewett, Thomas A. & Orr, Franklin M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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