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Development of BEACON technology. Quarterly report, January-March 1982

Description: The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Process conditions favoring the production of hydrogen were explored this quarter. Excess steam was found to suppress methane formation, and reduction of catalyst methanation activity was demonstrated. The effect of carbon load… more
Date: December 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hydrodynamic/kinetic reactions in liquid-dominated geothermal systems. Final report

Description: A mobile geothermal well-site test unit at the Mercer 2 well in South Brawley, California (Imperial Valley), was constructed and tested. The equipment controlled, monitored, and recorded all process conditions of single- and dual-flash power cycles. Single- and two-phase flashed brine effluents were flowed through piping component test sections to provide hydrodynamic/kinetic data for scale formation. The unit operated at flowrates in excess of 200 gpm and is designed to accommodate flowrates u… more
Date: April 1, 1982
Creator: Nesewich, J.P. & Gracey, C.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanisms affecting mass transfer in fuel cells

Description: An initial analysis of particulate effects on molten carbonate fuel cells has been conducted. The analysis has been applied to a conceptual fuel cell with operating parameters appropriate to use with future power generation plants. Particle transport due to several mechanisms has been considered and dominant mechanisms affecting particle delivery to anode channel surfaces and into anode pores have been identified. Thermophoresis and gas flow out from anode pores have been found to inhibit parti… more
Date: March 15, 1982
Creator: Wenglarz, R.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fluid sampling and chemical modeling of geopressured brines containing methane. Final report, March 1980-February 1981

Description: The development of a flowthrough sampler capable of obtaining fluid samples from geopressured wells at temperatures up to 400/sup 0/F and pressures up to 20,000 psi is described. The sampler has been designed, fabricated from MP35N alloy, laboratory tested, and used to obtain fluid samples from a geothermal well at The Geysers, California. However, it has not yet been used in a geopressured well. The design features, test results, and operation of this device are described. Alternative sampler … more
Date: July 1, 1982
Creator: Dudak, B.; Galbraith, R.; Hansen, L.; Sverjensky, D. & Weres, O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Intrinsically irreversible heat engines

Description: The concept of an intrinsically irreversible heat engine is examined as a means of obtaining temperatures near absolute zero. These engines use the irreversible process of thermal conduction to achieve the necessary phasing between temperature changes and motion of a primary medium and therefore have only one moving mechanical element. (GHT)
Date: January 1, 1982
Creator: Wheatley, J.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Photoassisted electrolysis applied to coal gasification. Third quarterly report, 1 January 1982-31 Mar 1982

Description: The literature search on electrochemical studies of various carbons has been completed. Two conclusions were reached: (1) The surfaces of various carbons are covered by oxide films to different extents and the oxides resemble either the quinone-like structure in their oxidized form or the hydroquinone-like structure in the reduced form. (2) When carbonaceous materials are oxidized chemically, electrochemically, or thermally, the first stage involves formation of the oxide film and the later sta… more
Date: January 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Lithium ceramics as the solid breeder material in fusion reactors

Description: Fusion blanket designs have for almost a decade considered the use of a solid breeder relying on available data and assumed performance. The conclusion from these studies is that acceptable neutronic and thermal hydraulic performance can be achieved. In the future, it will be necessary to establish that a particular material can tolerate the thermal and irradiation environment of the fusion blanket while still providing the required functions of tritium recovery, power production and neutron sh… more
Date: March 1, 1982
Creator: Hollenberg, G. W.; Reuther, T. C. & Johnson, C. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Electrochemistry of fuel cells for transportation applications

Description: Fuel cells are the most promising power sources for electric vehicles and do not suffer from the inherent limitations of efficiency, energy density, and lifetime, as encountered with all types of batteries considered for this application. The projected performance of fuel-cell-powered vehicles is comparable to that of the internal combustion and diesel engine vehicles but with the additional advantages of higher fuel efficiency, particularly with synfuels from coal. The ideal fuel for a fuel ce… more
Date: January 1, 1982
Creator: Gonzalez, E.R. & Srinivasan, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Numerical and experimental investigation of simulated explosions inside a flow network

Description: The results of a numerical and an experimental study of a flow network subjected to a simulated explosion are presented. The numerical simulation uses a computer code called EVENT that predicts the response of a system under gas-dynamic stress conditions. The experiment uses a real flow system that is injected with a high-pressure gas. The results from these two are compared using a flow parameter such as pressure. We conclude that the numerical calculation matches the results of the experiment… more
Date: May 1, 1982
Creator: Tang, P. K.; Gregory, W. S. & Ricketts, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The effect of expansion-ratio limitations on positive-displacement, total-flow geothermal power systems

Description: Combined steam-turbine/positive-displacement engine (PDE) geothermal power systems are analyzed thermodynamically and compared with optimized reference flash-steam plants. Three different configurations of combined systems are considered. Treated separately are the cases of self-flowing and pumped wells. Two strategies are investigated that help overcome the inherent expansion-ratio limitation of PDE's: pre-flashing and pre-mixing. Parametrically-obtained results show the required minimum PDE e… more
Date: February 1, 1982
Creator: DiPippo, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Statistical Identification of Effective Input Variables

Description: This report provides background and procedural information for the use of a general-purpose Stirling-engine analysis code developed at Argonne National Laboratory and available through the National Energy Software Center. Different engine configurations are easily specified, or the user may make use of provided data for existing engines, both kinematic and free piston. The code models heat transfer and fluid mechanics throughout the engine and accounts for system energy flows and losses. Good a… more
Date: September 1982
Creator: Vaurio, J. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Light-Water-Reactor Fission-Product Data Assessment

Description: This assessment seeks (1) to determine the most probable chemical compounds formed between fission products and actinides in urania fuels under normal and accident conditions and (2) to identify gaps in knowledge of these fission-product compounds. The ultimate goal of this effort is to develop predictive capability about the behavior of fission products under normal and accident conditions. The relevant thermochemical data have been organized by compound type, the chemical stability of resulta… more
Date: September 1982
Creator: Blackburn, P. E. & Johnson, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemistry Division annual progress report for period ending July 31, 1981

Description: Research is reported on: chemistry of coal liquefaction, aqueous chemistry at high temperatures, geosciences, high-temperature chemistry and thermodynamics of structural materials, chemistry of TRU elements and compounds, separations chemistry, electrochemistry, nuclear waste chemistry, chemical physics, theoretical chemistry, inorganic chemistry of hydrogen cycles, molten salt systems, and enhanced oil recovery. Separate abstracts were prepared for the sections dealing with coal liquefaction, … more
Date: January 1, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetic Susceptibility and Proton NMR study of TiCr/sub 1/ /sub 8/H/sub x/

Description: The electronic properties of the hexagonal (C-14) and cubic (C-15) allotropes of the TiCr/sub 1/ /sub 8/+/sub 0/ /sub 1//H/sub 2/ system have been examined via magnetic susceptibility and proton NMR studies. The results indicate an increase in N(E/sub F/), the electron density of states at the Fermi level, with increasing H/M for both allotropes; the trend extends into the ..cap alpha..'-hydride phase. The results suggest a basis for thermodynamic anomalies reported for the solution of hydrogen… more
Date: January 1, 1982
Creator: Lynch, J. F.; Johnson, J. R. & Bowman, R. C., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mechanism of catalytic gasification of coal char. Quarterly technical report No. 5, October 1 to December 31, 1981

Description: The purpose of this study is to determine the mechanisms involved in the catalytic reactions of coal char and to identify the specific reaction steps and the parameters that control the catalytic process. The mode of action of the catalyst can be viewed in two ways. In one view, the catalyst participates in a reduction/oxidation cycle. The initial reaction between the carbon and the catalyst reduces the KOH to potassium accompanied by the gaseous reactant (H/sub 2/O or CO/sub 2/), producing fur… more
Date: February 26, 1982
Creator: Wood, B. J.; Sancier, K. M.; Sheridan, D. R.; Chan, B. L. & Wise, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Economics of a 75-MW(e) hot-dry-rock geothermal power station based upon the design of the Phase II reservoir at Fenton Hill

Description: Based upon EE-2 and EE-3 drilling costs and the proposed Fenton Hill Phase II reservoir conditions the break-even cost of producing electricity is 4.4 cents per kWh at the bus bar. This cost is based upon a 9-well, 12-reservoir hot dry rock (HDR) system producing 75 MW(e) for 10 yr with only 20% drawdown, and an assumed annual finance charge of 17%. Only one-third of the total, potentially available heat was utilized; potential reuse of wells as well as thermal stress cracking and augmentation … more
Date: February 1, 1982
Creator: Murphy, H.; Drake, R.; Tester, J. & Zyvoloski, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of initiation and detonation by Lagrange gage techniques. Final report

Description: The theoretical work in this report is concerned with a reactive flow Lagrange analysis (RFLA) for shocked explosives that was formulated and developed at SRI International and Lawrence Livermore National Laboratory (LLNL). This RFLA takes a set of Lagrange particle velocity and pressure histories recorded in shocked explosive as input and calculates the flow fields in the explosive and its global rate of decomposition. A similarity solution modeling a type of initiation observed in PBX9404 and… more
Date: January 1, 1982
Creator: Cowperthwaite, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synfuels From Fusion: Using the Tandem Mirror Reactor and a Thermochemical Cycle to Produce Hydrogen

Description: This study is concerned with the following area: (1) the tandem mirror reactor and its physics; (2) energy balance; (3) the lithium oxide canister blanket system; (4) high-temperature blanket; (5) energy transport system-reactor to process; (6) thermochemical hydrogen processes; (7) interfacing the GA cycle; (8) matching power and temperature demands; (9) preliminary cost estimates; (10) synfuels beyond hydrogen; and (11) thermodynamics of the H/sub 2/SO/sub 4/-H/sub 2/O system. (MOW)
Date: November 1, 1982
Creator: Werner, Richard W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimating tail probabilities

Description: This paper investigates procedures for univariate nonparametric estimation of tail probabilities. Extrapolated values for tail probabilities beyond the data are also obtained based on the shape of the density in the tail. Several estimators which use exponential weighting are described. These are compared in a Monte Carlo study to nonweighted estimators, to the empirical cdf, to an integrated kernel, to a Fourier series estimate, to a penalized likelihood estimate and a maximum likelihood estim… more
Date: December 1, 1982
Creator: Carr, D. B. & Tolley, H. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Intergrated Function Nonimaging Concentrating Collector Tubes for Solar Thermal Energy. Final Technical Report

Description: A substantial improvement in optical efficiency over contemporary external reflector evacuated tube collectors has been achieved by integrating the reflector surface into the outer glass envelope. Described are the design fabrication and test results for a prototype collector based on this concept. A comprehensive test program to measure performance and operational characteristics of a 2 m/sup 2/ panel (45 tubes) has been completed. Efficiencies above 50% relative to beam at 200/sup 0/C have be… more
Date: September 1, 1982
Creator: Winston, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical and electrochemical behavior of the Cr(III)/Cr(II) half cell in the NASA Redox Energy Storage System

Description: The Cr(III) complexes in the NASA Redox Energy Storage System have been isolated and identified as Cr(H/sub 2/O)/sub 6//sup +3/ and Cr(H/sub 2/O)/sub 5/Cl/sup +2/ by ion-exchange chromatography and visible spectrophotometry. The cell reactions during charge-discharge cycles have been followed by means of visible spectrophotometry. The spectral bands were resolved into component peaks and concentrations calculated using Beer's Law. During the charge mode Cr(H/sub 2/O)/sub 5/Cl/sup +2/ is reduced… more
Date: January 1, 1982
Creator: Johnson, D.A. & Reid, M.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Origin of a sanidine-coesite grospydite

Description: A grospydite xenolith from the Roberts Victor kimberlite pipe in South Africa presents an unusual phase assemblage of clinopyroxene, garnet, kyanite, coesite, and sanidine. The rock as previously described (Smyth and Hatton, 1977) consists of 50% omphocitic clinopyroxene, 28% garnet (Gr/sub 50/Py/sub 28/Alm/sub 22/), 9% kyanite, 65 coesite, and 1% sanidine (Or/sub 99/). Assuming the addition of three additional compatible phases (phlogopite, enstatite, and H/sub 2/O vapor) and a simplified chem… more
Date: January 1, 1982
Creator: Wohletz, K.H. & Smyth, J.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Practical method for modeling fluid and heat flow in fractured porous media

Description: A Multiple Interacting Continua method (MINC) is presented which is applicable for numerical simulation of heat and multi-phase fluid flow in multidimensional, fractured porous media. This method is a generalization of the double-porosity concept. The partitioning of the flow domain into computational volume elements is based on the criterion of approximate thermodynamic equilibrium at all times within each element. The thermodynamic conditions in the rock matrix are assumed to be primarily con… more
Date: February 1, 1982
Creator: Pruess, K. & Narasimhan, T. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Rheology via nonequilibrium molecular dynamics

Description: The equilibrium molecular dynamics formulated by Newton, Lagrange, and Hamilton has been modified in order to simulate rheologial molecular flows with fast computers. This modified Nonequilibrium Molecular Dynamics (NEMD) has been applied to fluid and solid deformations, under both homogeneous and shock conditions, as well as to the transport of heat. The irreversible heating associated with dissipation could be controlled by carrying out isothermal NEMD calculations. The new isothermal NEMD eq… more
Date: October 1, 1982
Creator: Hoover, William G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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