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Dissolving coal at moderate temperatures and pressures. Final report, August 20, 1982-September 30, 1984. [Benzylamine]

Description: The main objectives of this research were to make Illinois No. 6 coal liquid or soluble with inexpensive reagents (e.g., solvolysis with methanol and acids), without high pressure equipment, and to see if our soluble products would be more reactive than whole coal in liquefaction processes. These efforts are unpromising. However, efforts to make coal soluble by oxidation with nitric acid gave encouraging results. When Illinois No. 6 and Wyodak coals were allowed to stand in sunlight for 282 day… more
Date: September 21, 1984
Creator: Mayo, F. R.; Hirschon, A. S. & Sundback, K. A.
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Partner: UNT Libraries Government Documents Department
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Evaluation of Materials Performance in a Large-Scale Glass Melter after Two Years of Vitrifying Simulated SRP Defense Waste

Description: The Large Slurry Fed Melter (LSFM) at the Department of Energy's Savannah River Plant recently completed two years of service and was shut down for evaluation. This paper reviews the melter operating history and describes the condition of the refractories and metal components. The excellent condition of the LSFM verifies the expected performance of the materials of construction and indicates that a two year melter life is achievable in the Defense Waste Processing Facility (DWPF).
Date: November 21, 1984
Creator: Iverson, D.C.
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Partner: UNT Libraries Government Documents Department
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Finite element method for solving neutron transport problems

Description: A finite element method is introduced for solving the neutron transport equations. Our method falls into the category of Petrov-Galerkin solution, since the trial space differs from the test space. The close relationship between this method and the discrete ordinate method is discussed, and the methods are compared for simple test problems.
Date: March 21, 1984
Creator: Ferguson, J.M. & Greenbaum, A.
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Partner: UNT Libraries Government Documents Department
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General CP properties of neutrino mass eigenstates

Description: We show that the mass eigenvectors of the neutrino mass matrix have definite CP quantum numbers whether or not CP is conserved, and we examine the conditions under which a mixture of even and odd CP eigenstates will occur.
Date: January 21, 1984
Creator: Rosen, S. P.
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Partner: UNT Libraries Government Documents Department
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Geothermal resources assessment in Hawaii. Final report

Description: The Hawaii Geothermal Resources Assessment Program was initiated in 1978. The preliminary phase of this effort identified 20 Potential Geothermal Resource Areas (PGRA's) using available geological, geochemical and geophysical data. The second phase of the Assessment Program undertook a series of field studies, utilizing a variety of geothermal exploration techniques, in an effort to confirm the presence of thermal anomalies in the identified PGRA's and, if confirmed, to more completely characte… more
Date: February 21, 1984
Creator: Thomas, D. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Icelandic basaltic geothermal field: A natural analog for nuclear waste isolation in basalt

Description: Analog studies of Icelandic geothermal fields have shown that the design of nuclear waste repositories in basalt can benefit by comparison to the data base already available from the development of these geothermal fields. A high degree of similarity exists between these two systems: their petrology, groundwater geochemistry, mineral solubilities, hydrologic parameters, temperature ranges, water-rock redox equilibria, hydrothermal pH values, and secondary mineralogies all show considerable over… more
Date: November 21, 1984
Creator: Ulmer, G. C. & Grandstaff, D. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Improved Uranium Recovery from the Process Streams in an Electroplating Facility

Description: This report discusses results of testing to improve uranium recovery from the process streams in an electroplating facility. Cylindrical uranium slugs are used as irradiation targets in the production reactors at the Savannah River Plant. These slugs are first chemically etched, nickel plated, encased in aluminum, inspected, and individually pressure tested. An improved process was developed to recover the uranium from the acidic etching streams for controlling pH and the PO4 to U ratio so that… more
Date: November 21, 1984
Creator: Pickett, J.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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International Waste Glass Study - Composition and Leachability Correlations

Description: As part of an effort to assess and understand the performance and chemical durability of Savannah River Plant (SRP) waste glass, an International Glass Study was undertaken. That study found important similarities, based on correlations of composition and leaching performance, among many difference defense and commercial waste glass compositions being studied world-wide. In addition, the beneficial effect of waste on glass performance was confirmed for the systems evaluated. This paper discusse… more
Date: November 21, 1984
Creator: Wicks, G. G.
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Partner: UNT Libraries Government Documents Department
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Kinetic theory and simulation of multi-species plasmas in tokamaks excited with ICRF microwaves

Description: This paper presents a description of a bounce-averaged Fokker-Planck quasilinear model for the kinetic description of tokamak plasmas. The non-linear collision and quasilinear resonant diffusion operators are represented in a form conducive to numerical solution with specific attention to the treatment of the boundary layer separating trapped and passing orbit regions of velocity space. The numerical techniques employed are detailed in so far as they constitute significant departure from those … more
Date: December 21, 1984
Creator: Kerbel, G. D. & McCoy, M. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Leaching of Saltstone

Description: A modified IAEA leach test was used to evaluate the relative performance of potential saltstone formulations. The effects of sample size and leach rates for specific ions were determined. Nitrite, nitrate, sodium, and sulfate are listed in order of decreasing leach rates and effective diffusivities for saturated leaching of saltstone. This paper discusses the results of the testing.
Date: November 21, 1984
Creator: Langston, C.A.
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Partner: UNT Libraries Government Documents Department
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LLNL nuclear data libraries used for fusion calculations

Description: The Physical Data Group of the Computational Physics Division of the Lawrence Livermore National Laboratory has as its principal responsibility the development and maintenance of those data that are related to nuclear reaction processes and are needed for Laboratory programs. Among these are the Magnetic Fusion Energy and the Inertial Confinement Fusion programs. To this end, we have developed and maintain a collection of data files or libraries. These include: files of experimental data of neu… more
Date: May 21, 1984
Creator: Howerton, R. J.
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Partner: UNT Libraries Government Documents Department
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Octupole anchor for tandem mirrors

Description: The octupole anchor is a very promising alternative to the usual quadrupole designs. The most critical unsolved problem is stabilization of the trapped particle mode. The anchor magnetic field is low because MHD stabilization is by hot electrons, thus permitting relatively small magnet currents and conductor cross sections. Increasing the field to a sufficient level to permit operation of the thermal barrier and electrostatic plug required for trapped particle mode stabilization would require m… more
Date: March 21, 1984
Creator: Hopper, E.B. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal effects in radiation processing

Description: The balance of ionizing radiation energy incident on an object being processed is discussed in terms of energy losses, influencing the amount really absorbed. To obtain the amount of heat produced, the absorbed energy is corrected for the change in internal energy of the system and for the heat effect of secondary reactions developing after the initiation. The temperature of a processed object results from the heat evolved and from the specific heat of the material comprising the object. The sp… more
Date: October 21, 1984
Creator: Zagorski, Z.P.
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Partner: UNT Libraries Government Documents Department
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