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Corrosion Behavior of Several Metals in Ethylene Glycol-Base Heat-Transfer Fluids under Conditions Encountered in Solar Energy Systems

Description: The corrosion behavior of aluminum, copper, and iron in inhibited ethylene glycol-ASTM corrosive water solutions was evaluated in a laboratory loop under isothermal and heat-flux conditions for 1000 h at temperatures between 378 and 413 degrees K, in static autoclave tests at 450 degrees K for 500 h, and by potentiodynamic polarization measurements at temperatures between 298 and 348 degrees K. The effect of time, temperature, and ethylene glycol concentration of the heat-transfer fluid on the … more
Date: January 1980
Creator: Zeman, G. J.
Partner: UNT Libraries Government Documents Department
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Experiments on Cold-Trap Regeneration by NaH Decomposition

Description: Cold-trap regeneration may be very important in future LMFBRs because of the expected high hydrogen source from the steam generators. This hydrogen precipitates as NaH in the cold trap and may fill the trap within one year of operation. Several methods of cold-trap regeneration were considered, but the simplest and least expensive appears to be decomposition of NaH under vacuum at elevated temperatures. Experiments were done to assess the feasibility of this method for cold-trap regeneration. S… more
Date: June 1980
Creator: Argonne National Laboratory. Chemical Engineering Division.
Partner: UNT Libraries Government Documents Department
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Branching Fraction in the Radioactive Decay of ⁸⁵mKr

Description: The branching fraction in the decay of the fission product ⁸⁵m-krypton⁸⁵m to the ground state ⁸⁵krypton (10.75 y) was measured relative to the total decay to both ⁸⁵krypton and ⁸⁵Rb. Samples of uranium-235 were highly irradiated in a high-flux reactor and dissolved. ⁸⁵Rb was measured by isotope-dilution mass spectrometry, and the ⁸⁵krypton was counted in GM tubes the counting efficiencies of which were calibrated with a standardized ⁸⁵krypton gas of known disintegration rate. The branching frac… more
Date: February 1980
Creator: Jaffey, A. H.; Steinberg, E. P.; Gindler, J. E.; Gray, J.; Horwitz, E. P.; Hughes, J. P. et al.
Partner: UNT Libraries Government Documents Department
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Corrosion and Mechanical Behavior of Materials for Coal Gasification Applications

Description: A state-of-the-art review is presented on the corrosion and mechanical behavior of materials at elevated temperatures in coal-gasification environments. The gas atmosphere in coal-conversion processes are, in general, complex mixtures which contain sulfur-bearing components (hydrogen sulfide, SO2, and COS) as well as oxidants (carbon dioxide/carbon monoxide and water/hydrogen). The information developed over the last five years clearly shows sulfidation to be the major mode of material degradat… more
Date: May 1980
Creator: Natesan, K.
Partner: UNT Libraries Government Documents Department
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SACO-1: a Fast-Running LMFBR Accident-Analysis Code

Description: SACO is a fast-running computer code that simulates hypothetical accidents in liquid-metal fast breeder reactors to the point of permanent subcriticality or to the initiation of a prompt-critical excursion. In the tradition of the SAS codes each sub-assembly is modeled by a representative fuel pin with three distinct axial regions to simulate the blanket and core regions. However, analytic and integral models are used wherever possible to cut down the computing time and storage requirements. Th… more
Date: January 1980
Creator: Mueller, C. J.; Cahalan, J. E. & Vaurio, J. K.
Partner: UNT Libraries Government Documents Department
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COMMIX-SA-1: a Three-Dimensional Thermohydrodynamic Computer Program for Solar Applications

Description: COMMIX-SA-1 is a three-dimensional, transient, single-phase, compressible-flow, component computer program for thermohydrodynamic analysis. It was developed for solar applications in general, and for analysis of thermocline storage tanks in particular. The conservation equations (in cylindrical coordinates) for mass, momentum, and energy are solved as an initial-boundary-value problem. The detailed numerical-solution procedure based on a modified ICE (Implicit Continuous-Fluid Eulerian) techniq… more
Date: November 1980
Creator: Sha, W. T.; Lin, E. I. H.; Schmitt, R. C.; Liu, K. V.; Hull, J. R.; Oras, J. J., Jr. et al.
Partner: UNT Libraries Government Documents Department
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The Delayed-Neutron Fraction in a Pulsed Spallation Neutron Source

Description: The fraction of delayed neutrons beta in slow-neutron beams from a uranium-238 pulsed spallation neutron source is 0.0053 for 300 MeV protons. This measurement appears to be the first one of this quantity. The result indicates that, for most classes of measurements, the delayed-neutron background in time-of-flight instruments will be unimportant, and places constraints on the physics description of spallation targets. The measurement was performed at the prototype pulsed spallation neutron sour… more
Date: February 1980
Creator: Carpenter, J. M.
Partner: UNT Libraries Government Documents Department
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Fast Critical Assembly Safeguards Summary Report, October 1978 - September 1979, Volume 1

Description: Nuclear material inventory verification techniques for large split-table type fast critical assemblies are being studied under this program. Emphasis has been given to techniques that minimize fuel handling in order to reduce facility down time and radiation exposure to the inventory team. The techniques studied include autoradiography, reactivity, and spectral index measurements.
Date: February 1980
Creator: Argonne National Laboratory
Partner: UNT Libraries Government Documents Department
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Fast Critical Assembly Safeguards. Summary Report, October 1978 - September 1979, Volume 2

Description: PART 1: The effectiveness of a neutron well correlation counter (NWCC) and a random driver (RD) for plutonium-containing item assay and loss detection has been studied. The items were 4 in. x 2 in. x 1/4 in. stainless steel-clad metal plates and 6 in. x 3/8 in. stainless steel-clad oxide rods, each in two types of containment. PART 2: A neutron-counting/fuel-weighting system has been developed to provide the capability to assay the ZPR-6 and -9 plutonium fuel canisters rapidly and accurately. T… more
Date: September 1980
Creator: Winslow, G. H.; Bellinger, F. O.; Scharping, R. A.; Rusch, G. K. & Groh, E. F.
Partner: UNT Libraries Government Documents Department
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Fast Critical Assembly Safeguards: NDA Methods for Highly Enriched Uranium. Summary Report, October 1978 - September 1979, Volume 3

Description: Nondestructive assay (NDA) methods, principally passive gamma measurements and active neutron interrogation, have been studied for their safeguards effectiveness and programmatic impact as tools for making inventories of highly enriched uranium fast critical assembly fuel plates. It was concluded that no NDA method is the sole answer to the safeguards problem, that each of those emphasized here has its place in an integrated safeguards system, and that each has minimum facility impact.
Date: December 1980
Creator: Bellinger, F. O. & Winslow, G. H.
Partner: UNT Libraries Government Documents Department
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Conceptual Design of Electrical Balance of Plant for Advanced Battery Energy Storage Facility. Annual Report March 1979

Description: Large-scale efforts are in progress to develop advanced batteries for utility energy storage systems. Realization of the full benefits available from those systems requires development, not only of the batteries themselves, but also the ac/dc power converter, the bulk power interconnecting equipment, and the peripheral electric balance of plant equipment that integrate the battery/converter into a properly controlled and protected energy system. This study addresses these overall system aspects… more
Date: January 1980
Creator: King, Joseph M., Jr.; Vivirito, Joseph R. & Kornbrust, Frederick J.
Partner: UNT Libraries Government Documents Department
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Radiological and Environmental Research Division Annual Report: Part 1, Fundamental Molecular Physics, October 1979-September 1980

Description: Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to molecular physics and chemistry. This report discusses the Section's work on the physics and chemistry of atoms, ions, and molecules - especially their interactions with external agents such as photons and electrons.
Date: 1980?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Partner: UNT Libraries Government Documents Department
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Fuel Cycle Programs, Quarterly Progress Report: April-June 1979

Description: Quarterly report of the Argonne National Laboratory Chemical Engineering Division regarding activities related to properties and handling of radioactive materials, operation of nuclear reactors, and other relevant research.
Date: September 1980
Creator: Steindler, M. J.; Ader, M.; Barletta, R. E.; Bates, J. K.; Bean, C. H.; Couture, R. A. et al.
Partner: UNT Libraries Government Documents Department
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Fuel Cycle Programs, Quarterly Progress Report: October-December 1979

Description: Quarterly report of the Argonne National Laboratory Chemical Engineering Division regarding activities related to properties and handling of radioactive materials, operation of nuclear reactors, and other relevant research.
Date: July 1980
Creator: Steindler, M. J.; Bates, J. K.; Couture, R. A.; Flynn, K. F.; Gerding, T. J.; Jardine, L. J. et al.
Partner: UNT Libraries Government Documents Department
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Materials Technology for Coal-Conversion Processes Quarterly Report: April-June 1980

Description: Quarterly report on the activities of the Argonne National Laboratory Materials Science Division regarding studies on ceramic (refractory) and metallic materials presently being used or intended for use in coal-conversion processes. The program entails research in the fields of nondestructive testing and failure analysis, together with studies of erosive wear, corrosion, and refractory degradation.
Date: October 1980
Creator: Ellingson, W. A.
Partner: UNT Libraries Government Documents Department
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Materials Technology for Coal-Conversion Processes Quarterly Report: January-March 1980

Description: Quarterly report on the activities of the Argonne National Laboratory Materials Science Division regarding economical conversion of coal into clean and usable alternate fuels will be advanced through the use of durable materials systems. This program is designed to provide part of the materials information necessary for successful operation of coal-conversion systems.
Date: June 1980
Creator: Argonne National Laboratory. Materials Science Division.
Partner: UNT Libraries Government Documents Department
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Post-Test Examinations of Li-Al/FeSx Secondary Cells

Description: Post-test examinations were conducted to determine failure mechanisms, electrode morphologies, and in-cell corrosion of cell components, and to recommend appropriate design changes for improved cell performance and reliability. The reactive electrode materials required the design and construction of a special metallographic glovebox facility. Combinations of macro- and microscopic examinations determined that electrical short circuits were the predominant causes of cell failure. The major short… more
Date: December 1980
Creator: Battles, J. E.; Mrazek, F. C. & Otto, N. C.
Partner: UNT Libraries Government Documents Department
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Development and Verification of the LIFE-GCFR Computer Code for Predicting Gas-Cooled Fast-Reactor Fuel-Rod Performance

Description: The fuel-pin modeling code LIFE-GCFR has been developed to predict the thermal, mechanical, and fission-gas behavior of a Gas-Cooled Fast Reactor (GCFR) fuel rod under normal operating conditions. It consists of three major components: thermal, mechanical, and fission-gas analysis. The thermal analysis includes calculations of coolant, cladding, and fuel temperature; fuel densification; pore migration; fuel grain growth; and plenum pressure. Fuel mechanical analysis includes thermal expansion, … more
Date: December 1980
Creator: Hsieh, T. C.; Billone, Michael C. & Rest, J.
Partner: UNT Libraries Government Documents Department
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User Guide for Minpack-1

Description: MINPACK-1 is a pack of FORTRAN subprograms for the numerical solution of nonlinear equations and nonlinear least-squares problems. This report provides an overview of the algorithms and software in the package, and includes the documentation and program listings.
Date: August 1980
Creator: Moré, Jorge J.; Garbow, Burton S. & Hillstrom, Kenneth E.
Partner: UNT Libraries Government Documents Department
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Automatic Transformations in the Inference Process

Description: A technique for incorporating automatic transformations into processes such as the application of inference rules, subsumption, and demodulation provides a mechanism for improving search strategies for theorem proving problems arising from the field of program verification. The incorporation of automatic transformations into the inference process can alter the search space for a given problem, and is particularly useful for problems having broad rather than deep proofs. The technique can also b… more
Date: July 1980
Creator: Veroff, Robert L.
Partner: UNT Libraries Government Documents Department
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Proceedings of the NEACRP/IAEA Specialists Meeting on the International Comparison Calculation of a Large Sodium-Cooled Fast Breeder Reactor at Argonne National Laboratory on February 7-9, 1978

Description: The results of an international comparison calculation of a large (1250 MWe) LMFBR benchmark model are presented and discussed. Eight reactor configurations were calculated. Parameters included with the comparison were: eigenvalue, k/sub infinity/, neutron balance data, breeding reaction rate ratios, reactivity worths, central control rod worth, regional sodium void reactivity, core Doppler and effective delayed neutron fraction. Ten countries participated in the comparison, and sixteen solutio… more
Date: August 1980
Creator: LeSage, L. G.; McKnight, R. D.; Wade, D. C.; Freese, K. E. & Collins, P. J.
Partner: UNT Libraries Government Documents Department
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Improving the Accuracy of Computed Matrix Eigenvalues

Description: A computational method is described for improving the accuracy of a given eigenvalue and its associated eigenvector, arrived at through a computation in a lower precision. The method to be described will increase the accuracy of the pair and do so at a relatively low cost. The technique used is similar to iterative refinement for the solution of a linear system; that is, through the factorization from the low-precision computation, an iterative algorithm is applied to increase the accuracy of t… more
Date: August 1980
Creator: Dongarra, J. J.
Partner: UNT Libraries Government Documents Department
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Thermal-Performance Study of Liquid Metal Fast Breeder Reactor Insulation

Description: Three types of metallic thermal insulation were investigated analytically and experimentally: multilayer reflective plates, multilayer honeycomb composite, and multilayer screens. Each type was subjected to evacuated and non-evacuated conditions, where thermal measurements were made to determine thermal-physical characteristics. A variation of the separation distance between adjacent reflective plates of multilayer reflective plates and multilayer screen insulation was also experimentally studi… more
Date: September 1980
Creator: Shiu, Kelvin Kwok-Kay
Partner: UNT Libraries Government Documents Department
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