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Repair Welding of Fusion Reactor Components

Description: Recent experimental investigations indicate that the repair welding of irradiated materials containing greater than 1 to 2.5 appm helium leads to catastrophic cracking in the heat affected zone of the weld. The high temperatures and cooling tensile stresses which occur during the welding process lead to enhanced helium bubble growth in the heat affected zone region, resulting in catastrophic cracking upon cooling. An investigation is proposed which seeks to determine the effect of stress state … more
Date: May 20, 1992
Creator: Chin, Bryan A.
Partner: UNT Libraries Government Documents Department
open access

Program RELAX: A code designed to calculate atomic relaxation spectra of x-rays and electrons

Description: The code RELAX is designed to calculate atomic relaxation spectra of X-rays and electrons due to bound-bound transitions. This calculation is based on the atomic transition data contained in the Livermore Evaluated Atomic Data Library (EADL). The results produced by this code for fluorescence yield vs. atomic number (Z) have been published in Tables and Graphs of Atomic Subshell and Relaxation Data Derived from the LLNL Evaluated Atomic Data Library (EADL), z = 1--100{double prime}, UCRL-50400,… more
Date: March 20, 1992
Creator: Cullen, D.E.
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies

Description: This project is sponsored by the United States Department of Energy (DOE) for the Engineering Design and Analysis of Advanced Physical Fine Coal Cleaning Technologies. The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies-heavy-liquid cylconing, selective agglomer… more
Date: January 20, 1992
Partner: UNT Libraries Government Documents Department
open access

GPHS-RTGs in support of the CRAF/Cassini missions

Description: The technical progress achieved during the period 30 September 1911 through 29 March 1992 on Contract DE-AC03-91SF18852.000 Radioisotope Thermoelectric Generators and Ancillary Activities is described in this document. This report is organized by the program task structure as follows: spacecraft integration and liaison, engineering support, safety, qualified unicouple production, ETG fabrication, assembly and test, ground support equipment (GSE), RTG shipping and launch support, designs, review… more
Date: April 20, 1992
Partner: UNT Libraries Government Documents Department
open access

Analysis of deposit from K-Reactor heat exchanger 4A

Description: Characterization of deposits from the reactor system provides a means of directly assessing corrosion and chemistry conditions within the system. The recent analysis of debris vacuumed from the bottom of K-Reactor tank provided information and reassurance about the conditions within the tank that would affect corrosion or moderator chemistry. Further opportunity for surveillance within the reactor system was recognized when solid deposits were found on the moderator side of the K-Reactor heat e… more
Date: March 20, 1992
Creator: Baumann, E. W.
Partner: UNT Libraries Government Documents Department
open access

Behavior of mercury, lead, cesium, and uranyl ions on four SRS soils

Description: Samples of four Savannah River Site (SRS) soils were tested for sorption behavior with Hg[sup 2+], Pb[sup 2+], UO[sub 2][sup 2+], and Cs[sup +] ions. The purpose of the study was to determine the selectivity of the different soils for these ions alone and in the presence of the competing cations, H[sup +] and Ca[sup 2+]. Distribution constants, Kd's, for the test ions in various solutions have been determined for the four soils. In general, sorption by all of the soils appeared to be more compl… more
Date: March 20, 1992
Creator: Bibler, J. P. & Marson, D. B.
Partner: UNT Libraries Government Documents Department
open access

Effectiveness of decanter modifications on organic removal

Description: A series of runs were planned in the Precipitate Hydrolysis Experimental Facility (PHEF) at the Savannah River Plant to determine the effectiveness of equipment and process modifications on the PHEF decanter organic removal efficiency. Runs 54-59 were planned to test the effectiveness of spray recirculation, a new decanter, heated organic recirculation and aqueous drawoff on organic removal efficiency in the revised HAN flowsheet. Runs 60-63 were planned to provide a comparison of the original … more
Date: August 20, 1992
Creator: Lambert, D. P.
Partner: UNT Libraries Government Documents Department
open access

Fundamental studies of passivity and passivity breakdown

Description: Effects of minor alloying elements on passivity breakdown and of photo effects on the properties of passive films are under study, and electrochemical and photoelectrochemical techniques are being used to explore transport and kinetic properties of vacancies and charge carriers in films and at metal/film and film/solution interfaces. Point defect and solute/vacancy interaction models are being developed to account for distributions in critical voltage and induction time for passivity breakdown … more
Date: April 20, 1992
Creator: Macdonald, D.D.
Partner: UNT Libraries Government Documents Department
open access

Innovative Clean Coal Technology (ICCT): 180 MW demonstration of advanced tangentially-fired combustion techniques for the reduction of nitrogen oxide (NO[sub x]) emissions from coal-fired boilers

Description: This quarterly report discusses the technical progress of a US Department of Energy (DOE) Innovative Clean Coal Technology (ICCT) Project demonstrating advanced tangentially-fired combustion techniques for the reduction of nitrogen oxide (NO[sub x]) emissions from a coal-fired boiler. The project is being conducted at Gulf Power Company's Plant Lansing Smith Unit 2 located near Panama City, Florida. The primary objective of this demonstration is to determine the long-term effects of commerciall… more
Date: May 20, 1992
Partner: UNT Libraries Government Documents Department
open access

Integrated low emissions cleanup system for direct coal fueled turbines (Moving bed, fluid bed contactor/ceramic filter)

Description: The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Scie… more
Date: January 20, 1992
Creator: Newby, R. A.; Alvin, M. A.; Bachovchin, D. M.; Yang, W. C.; Smeltzer, E. E. & Lippert, T. E.
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies

Description: The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- advanced cylconing, selective agglomeration, and advanced froth flotation through the proof-of-concept. The commercially available ASPEN PLUS process simulation package will be extended to handle coal cleaning… more
Date: October 20, 1992
Creator: Gallier, P.W.
Partner: UNT Libraries Government Documents Department
open access

Energy transfer properties and mechanisms

Description: The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited… more
Date: October 20, 1992
Creator: Barker, J. R.
Partner: UNT Libraries Government Documents Department
open access

Integrated low emissions cleanup system for direct coal fueled turbines (moving bed, fluid bed contactor/ceramic filter)

Description: The United States Department of Energy, Morgantown Energy Research Center (DOE/METC), is sponsoring the development of direct coal-fired turbine power plants as part of their Heat Engines program. A major technical challenge remaining for the development of the direct coal-fired turbine is high-temperature combustion gas cleaning to meet environmental standards for sulfur oxides and particulate emissions, as well as to provide acceptable turbine life. The Westinghouse Electric Corporation, Scie… more
Date: October 20, 1992
Creator: Newby, R. A.; Alvin, M. A.; Bachovchin, D. M.; Yang, W. C.; Smeltzer, E. E. & Lippert, T. E.
Partner: UNT Libraries Government Documents Department
open access

Seismic hazard for the Savannah River Site: A comparative evaluation of the EPRI and LLNL assessments

Description: This report was conducted to: (1) develop an understanding of causes for the vast differences between the two comprehensive studies, and (2) using a methodology consistent with the reconciled methods employed in the two studies, develop a single seismic hazard for the Savannah River Site suitable for use in seismic probabilistic risk assessments with emphasis on the K Reactor. Results are presented for a rock site which is a typical because detailed evaluations of soil characteristics at the K … more
Date: May 20, 1992
Creator: Wingo, H.E.
Partner: UNT Libraries Government Documents Department
open access

Behavior of mercury, lead, cesium, and uranyl ions on four SRS soils

Description: Samples of four Savannah River Site (SRS) soils were tested for sorption behavior with Hg{sup 2+}, Pb{sup 2+}, UO{sub 2}{sup 2+}, and Cs{sup +} ions. The purpose of the study was to determine the selectivity of the different soils for these ions alone and in the presence of the competing cations, H{sup +} and Ca{sup 2+}. Distribution constants, Kd`s, for the test ions in various solutions have been determined for the four soils. In general, sorption by all of the soils appeared to be more compl… more
Date: March 20, 1992
Creator: Bibler, J. P. & Marson, D. B.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of HAZ liquation cracking susceptibility and HAZ softening behavior in modified 800H

Description: A modified 800H alloy, developed at Oak Ridge National Laboratory (ORNL), is one of the candidate materials designed for high temperature applications. Extensive mechanical and corrosion investigations have been completed and it has been proven that modified 800 has excellent high temperature mechanical and metallurgical behavior. Weldability studies of modified 800H are being carried out at the University of Tennessee, Knoxville. A series of modified 800H alloys and two similar commercial high… more
Date: November 20, 1992
Creator: Lundin, C. D. & Qiao, C. Y. P.
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 12, July--September 1992

Description: The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- advanced cylconing, selective agglomeration, and advanced froth flotation through the proof-of-concept. The commercially available ASPEN PLUS process simulation package will be extended to handle coal cleaning… more
Date: October 20, 1992
Creator: Gallier, P. W.
Partner: UNT Libraries Government Documents Department
open access

Effectiveness of decanter modifications on organic removal

Description: A series of runs were planned in the Precipitate Hydrolysis Experimental Facility (PHEF) at the Savannah River Plant to determine the effectiveness of equipment and process modifications on the PHEF decanter organic removal efficiency. Runs 54-59 were planned to test the effectiveness of spray recirculation, a new decanter, heated organic recirculation and aqueous drawoff on organic removal efficiency in the revised HAN flowsheet. Runs 60-63 were planned to provide a comparison of the original … more
Date: August 20, 1992
Creator: Lambert, D. P.
Partner: UNT Libraries Government Documents Department
open access

Energy transfer properties and mechanisms. Technical progress report

Description: The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited… more
Date: October 20, 1992
Creator: Barker, J. R.
Partner: UNT Libraries Government Documents Department
open access

Repair Welding of Fusion Reactor Components. Technical Report, First Eight Months of Project

Description: Recent experimental investigations indicate that the repair welding of irradiated materials containing greater than 1 to 2.5 appm helium leads to catastrophic cracking in the heat affected zone of the weld. The high temperatures and cooling tensile stresses which occur during the welding process lead to enhanced helium bubble growth in the heat affected zone region, resulting in catastrophic cracking upon cooling. An investigation is proposed which seeks to determine the effect of stress state … more
Date: May 20, 1992
Creator: Chin, B. A.
Partner: UNT Libraries Government Documents Department
open access

GPHS-RTGs in support of the CRAF/Cassini missions. Semi-annual technical report, 30 September 1991--29 March 1992

Description: The technical progress achieved during the period 30 September 1911 through 29 March 1992 on Contract DE-AC03-91SF18852.000 Radioisotope Thermoelectric Generators and Ancillary Activities is described in this document. This report is organized by the program task structure as follows: spacecraft integration and liaison, engineering support, safety, qualified unicouple production, ETG fabrication, assembly and test, ground support equipment (GSE), RTG shipping and launch support, designs, review… more
Date: April 20, 1992
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 9, October--December 1991

Description: This project is sponsored by the United States Department of Energy (DOE) for the ``Engineering Design and Analysis of Advanced Physical Fine Coal Cleaning Technologies. The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies-heavy-liquid cylconing, selective agglom… more
Date: January 20, 1992
Partner: UNT Libraries Government Documents Department
open access

Fast ion-driven Bernstein instabilities

Description: We investigate a new mechanism, the two-energy-stream cyclotron instability, for fast ions (e.g., fusion products) to drive electrostatic waves and to slow down. The instability comes from a relativistic effect, which dominates conventional phase overtaking as the axial phase velocity exceeds the speed of light. Both a single particle model and a dispersion relation are developed in order to illuminate the physics insights and scaling laws. We present numerical results and discuss nonlinear pro… more
Date: July 20, 1992
Creator: Chen, K. R.
Partner: UNT Libraries Government Documents Department
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