Office of Scientific & Technical Information Technical Reports - 27 Matching Results

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Assessment of the state of the art of pressurized fluidized bed combustion systems

Description: This report was prepared at the request of the Tennessee Valley Authority (TVA) to clarify the development status of the pressurized fluidized bed combustor (PFBC) and to place in perspective the problems which are yet to be solved before commercialization of the concept is practical. The report is viewed as preliminary to a more complete and comprehensive work to be carried out during FY 1979. An evaluation of the PFBC concept cites potential advantages over atmospheric pressure fluidized bed … more
Date: May 16, 1979
Creator: Fraas, A. P.; Graves, R. L. & Lackey, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computer controlled ultrasonic inspection of pulsed magnetic welded fuel pins

Description: Pulsed magnetic welding is being evaluated as a process for welding fuel cladding to the end plug for nuclear fuel pins. A continuous metallurgical bond is required between the plug and clad because this joint must function as a gas and coolant seal for the fuel pin. An ultrasonic technique utilizing a computer controlled scanner was developed to inspect these welds. First, fuel pin specimens were profiled in the weld zone region by determining actual surface coordinates. This step eliminated v… more
Date: March 16, 1979
Creator: Horn, J. E.; Hunter, D. O. & Michaels, T. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Conceptual design report for tritium liquid waste recovery system

Description: This project will provide a waste water treatment system to efficiently strip tritium from certain Mound generated waste water streams. After stripping the tritium from the water stream, the tritium will be further purified into a fully reusable form. The by-product streams, both liquid and gaseous, will be within applicable standards and can be released directly to the environment. The major components of the system consist of the following: an organic cleanup unit for the incoming waste strea… more
Date: July 16, 1979
Creator: Clark, W. B.; Lamberger, P. H.; Prugh, T. E. & Rogers, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Demonstration of scientific and economic feasibility of a solid-state heat engine. Second annual report

Description: A new experimental approach to the testing and data recording setup for ferroelectric converters is described. Thermocouple thermometry allowed low frequency thermal cycles to be measured. This lower frequency, in turn, allowed the employment of a Peltier effect module to pump heat into and out of the ferroelectric sample. The Peltier module is driven by a bipolar power supply whose output current (0 to +- 10 amp) is proportional to an input voltage. Thus, the amount of heat delivered to the sa… more
Date: November 16, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Description of the University of Texas at Arlington Solar Energy Research Facility photovoltaic/thermal residential system

Description: The addition of a photovoltaic array to a solar-heated single-family residence at the University of Texas at Arlington permits the study of combined photovoltaic/thermal system operation. Equipment and construction details are presented.
Date: March 16, 1979
Creator: Darkazalli, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Digital, realizable Wiener filtering in two-dimensions

Description: The extension of Wiener's classical mean-square filtering theory to the estimation of two-dimensional (2-D), discrete random fields is discussed. In analogy with the 1-D case, the optimal realizable filter is derived by solution of a 2-D discrete Wiener--Hopf equation using a spectral factorization procedure. Computational algorithms for performing the required calculations are discussed. 3 figures.
Date: March 16, 1979
Creator: Ekstrom, M.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Effective H{sub 2}S abatement process using geothermal brine effluents

Description: A simple and potentially inexpensive method for removal of H/sub 2/S from noncondensible gases evolved in geothermal flash processes has been successfully tested on a small scale in the field. The method consists of scrubbing the noncondensible gases of H{sub 2}S with brine effluents which contain relatively high concentrations of Pb, Zn, and Fe such as those of the Salton Sea and Brawley Geothermal Fields in the Imperial Valley, California. For plant applications, noncondensibles including H{s… more
Date: July 16, 1979
Creator: Quong, R.; Knauss, K.G.; Stout, N.D. & Owen, L.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electrical resistivity of TiH/sub x/ and TiH/sub x//KC10/sub 4/

Description: Various factors affecting the electrical resistivity of the pyrotechnic pressed powder TiH/sub x//KC10/sub 4/, which is sensitive to hot wire ignition yet quite spark insensitive, were evaluated. The electrical resistivity of the TiH/sub x/ and TiH/sub x//KC10/sub 4/ were correlated with their pressing pressure, stoichiometry, powder surface area, and temperature (from below liquid nitrogen temperature to 500 K). Data show resistivity increasing with x and surface area, and decreasing non-linea… more
Date: March 16, 1979
Creator: White, K.; Reed, J. W.; Love, C. M.; Glaub, J. E. & Holy, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Equilibrium oxygen potential-composition relations in hypostoichiometric plutonia

Description: The oxygen potential of hypostoichiometric plutonia at temperatures from 1000 to 1200/sup 0/C has been measured as a function of the oxygen-to-plutonium ratio by a thermogravimetric procedure. These data have been used to calculate activity coefficients for plutonia dissolved in urania and in thoria.
Date: July 16, 1979
Creator: Woodley, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Estimates of the nuclear design requirement for the Pechora-Kama Canal project

Description: The Soviet Union is considering the use of nuclear emplosives to excavate a portion of the Pechora-Kama Canal to divert water from northward-flowing rivers into the Caspian Sea. The Soviets have provided a general description of the Canal project, but detailed analyses of the nuclear design, including yields and number of nuclear charges, have never been published. Estimates for the nuclear design based on three different approaches are presented. Because of the meager amount of data provided b… more
Date: January 16, 1979
Creator: Nordyke, Milo D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hydrogen bonding in asphaltenes and coal. Quarterly report for April 1, 1979--June 30, 1979

Description: Structural analyses are reported of upgraded coal-liquids derived from catalytic hydroprocessing of a 30 to 70 blend SRC I with SRC II in a trickle bed reactor under different process conditions. The results indicate that along with the decrease in toluene insolubles, heteroatom (O,N,S) content, aromatic content and corresponding increase in aliphatic content, the hydrogen-bonded structure and phenolic OH content of the coal-liquid drastically decrease with increase in contact time and temperat… more
Date: July 16, 1979
Creator: Li, N. C.; Tewari, K. C. & Hara, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Fourteenth quarterly report, September 21, 1978-December 20, 1978

Description: Quantitative measurement of the reactivities of methyl-substituted dibenzothiophenes, under high pressure reaction conditions (102 atm, 300/sup 0/C) representative of industrial practice, has been accomplished. The catalyst was sulfided commercial Co-Mo/..gamma..-Al/sub 2/O/sub 3/. Methyl groups in the 2 and 8 or 3 and 7 positions show little effect. Methyl groups in the 4 position, however, reduced the reactivity by an order of magnitude and methyl groups in the 4 and 6 positions reduced it so… more
Date: March 16, 1979
Creator: Gates, B. C.; Katzer, J. R.; Olson, J. H.; Kwart, H. & Stiles, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978

Description: Studies of competing hydroprocessing reactions catalyzed by Ni-Mo/..gamma..-Al/sub 2/O/sub 3/ and involving quinoline, indole, dibenzothiophene, and naphthalene in n-hexadecane show that marked interactions exist. The naphthalene hydrogenation rate is markedly reduced by the presence of quinoline; whereas the reactivity of quinoline is virtually unchanged by the presence of naphthalene. Similarly the rate of hydrodenitrogenation of indole, a non-basic nitrogen-containing compounds is strongly r… more
Date: March 16, 1979
Creator: Gates, B. C.; Katzer, J. R.; Olson, J. H.; Kwart, H. & Stiles, A. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large-area boron and carbon scatterers and filters

Description: A technique was developed for making large-area boron and carbon scatterers or filters for use on nuclear field experiments and in the ion accelerator/subkilovolt x-ray facility in the Lawrence Livermore Laboratory. These scatterers and filters were made by spraying a mixture of boron in ethyl alcohol or of carbon in isopropyl alcohol on a backing material of 0.00185-cm polyethylene (-CH/sub 2/CH/sub 2/-). In place of the polyethelene, any suitable backing material can be used.
Date: March 16, 1979
Creator: Woehrle, T. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. Annual progress report, October 1, 1977-September 30, 1978

Description: Progress in EFG ribbon growth was made in a number of areas as follows: (1) Multiple growth for ribbons 5 cm in width was demonstrated in two runs of 12 and 20 hours' duration. (2) A new single cartridge crystal growth station, designated Machine 17, was built. It has vastly expanded observational capacity by virture of an anamorphic optical-video system which allows close observation of the meniscus over 7.5 cm in width, as well as video taping of the ribbon growth process for further analysis… more
Date: February 16, 1979
Creator: Wald, F.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Limitations of Retarded (Bisulfite) X-Ray Film Processing

Description: We demonstrate the limitations of using retarded (bisulfite) developer to abate film sensitivity of x-ray films that have been exposed to intense radiation. We compared the measured densities of a large number of Kodak Type-M x-ray film samples exposed to a known fluence of monochromatic x-rays. These film samples were processed in three separate batches of bisulfite developer mixed in the same proportions. We concluded that reproducible film-density information cannot be obtained using differe… more
Date: October 16, 1979
Creator: Stoering, J. P. & Dittmore, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low pressure gas filling of laser fusion microspheres

Description: In our laser fusion microsphere production, large, thin gel-microspheres are formed before the chemicals are fused into glass. In this transient stage,, the gel-microspheres are found to be highly permeable to argon and many other inert gases. When the gel transforms to glass, the argon gas, for example, is trapped within to form argon filled, fusion target quality, glass microspheres. On the average, the partial pressure of the argon fills attained in this process is around 2 x 10/sup 4/ Pa at… more
Date: April 16, 1979
Creator: Koo, J.C.; Dressler, J.L. & Hendricks, C.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mass spectrometer determination of argon contents in laser fusion target pellets

Description: A system for measuring argon contents in individual laser fusion targets using a getter pumped closed volume quadrupole mass spectrometer has been developed. Accuracy of 10% can be obtained, limited by the calibration standard and electron multiplier drift. Measurements are simple, unambiguous and can be performed at up to one per hour with a sensitivity equivalent to 1 x 10/sup 3/ Pa (.01 atm) argon in a 140 ..mu..m internal diameter sphere.
Date: April 16, 1979
Creator: Ward, C. M. & Bergquist, L. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mechanical properties of depleted uranium-2 w/o molybdenum alloy

Description: The primary objective of this program is to develop data and techniques for determining the dynamic impact response of radioactive-material shipping-container systems for environmental control and safety overview and assessment. One phase of this program is the dynamic testing of 1/8-, 1/4-, and 1/2-scale models of uranium-shielded truck casks. These linearly scaled models are fabricated from the same materials typically used in full-size prototype casks. In order to analytically evaluate the r… more
Date: July 16, 1979
Creator: Deel, O. L. & Burian, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Policy Analysis Screening System (PASS) demonstration: sample queries and terminal instructions

Description: This document contains the input and output for the Policy Analysis Screening System (PASS) demonstration. This demonstration is stored on a portable disk at the Environmental Impacts Division. Sample queries presented here include: (1) how to use PASS; (2) estimated 1995 energy consumption from Mid-Range Energy-Forecasting System (MEFS) data base; (3) pollution projections from Strategic Environmental Assessment System (SEAS) data base; (4) diesel auto regulations; (5) diesel auto health effec… more
Date: October 16, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solar heating and hot water system installed at Cherry Hill, New Jersey. [Hotels]

Description: The solar heating and hot water system installed in existing buildings at the Cherry Hill Inn in Cherry Hill, New Jersey is described in detail. The system went into operation November 8, 1978 and is expected to furnish 31.5% of the overall heating load and 29.8% of the hot water load. The collectors are General Electric Company liquid evacuated tube type. The storage system is an above ground insulated steel water tank with a capacity of 7,500 gallons.
Date: May 16, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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