UNT Libraries Government Documents Department - 23 Matching Results

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open access

Pulsed-laser heating: a tool for studying degradation of materials subjected to repeated high-temperature excursions

Description: The use of pulsed-laser heating was evaluated as a means to obtain high cyclic peak temperatures with short rise times. A two-stage neodymium glass laser was used which produces a 600-..mu..s pulse with energy outputs of up to 100 J. Small disk-shaped samples of AISI 4340 steel served as targets. Some of these were coated with a tungsten deposit. The rear face of some of the targets was instrumented for evaluation of temperature, strain, and stress response. Post-shot metallographic evaluations… more
Date: August 21, 1980
Creator: Goldberg, A. & Cornell, R.H.
Item Type: Refine your search to only Report
open access

Nonimaging Concentrators for Solar Thermal Energy. Final Report

Description: A small experimental solar collector test facility has been established on the campus of the University of Chicago. This capability has been used to explore applications of nonimaging optics for solar thermal concentration in three substantially different configurations: (1) a single stage system with moderate concentration on an evacuated absorber (a 5.25X evacuated tube Compound Parabolic Concentrator or CPC), (2) a two stage system with high concentration and a non-evacuated absorber (a 16X … more
Date: March 21, 1980
Creator: Winston, R.
Item Type: Refine your search to only Report
open access

Evaluation, design, development and delivery of a 1200 kV prototype termination. Fifth technical progress report, December 1, 1979-February 29, 1980

Description: Detailed analytic and model studies of various 1200 kV termination concepts underway during the present period are described. Test results are reported for the electrostatic field enhancement and the shatter-resistant weathercase studies. Optional materials, configurations, and fabrication plans are expected to be determined upon completion of these studies.
Date: July 21, 1980
Creator: Billings, J S; Meyer, J R & Neri, Z
Item Type: Refine your search to only Report
open access

Climatic fluctuations, volcanic aerosol and carbon dioxide changes. Annual progress report, 1 October 1979-30 September 1980

Description: Technical progress made for the contract period 1 October 1979-30 September 1980, and in fact since the last progress report was prepared on 18 June 1979, is summarized. The relationship between tropospheric air temperature, sea surface temperature patterns and volcanic aerosol has been derived by the application of generalized least squares analysis, which takes account of significant autocorrelation between the variables. Up to 50% of the variance of the tropical tropospheric air temperature … more
Date: May 21, 1980
Creator: Newell, R.E.
Item Type: Refine your search to only Report
open access

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I demonstration plant, Newman, Kentucky. Appendix C. Ambient monitoring report. [Newman, KY demonstration plant]

Description: Baseline air quality and meteorology data collected at the proposed site in 1977 and 1978 are presented: sulfur dioxide, nitrogen dioxide, carbon monoxide, ozone, particles, lead, reduced sulfur compounds, and polycyclic aromatic hydrocarbons. (LTN)
Date: November 21, 1980
Item Type: Refine your search to only Report
open access

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I demonstration plant, Newman, Kentucky. Appendix A. Kentucky permit application forms APC-110A, APC-110B, APC-110C. [Specifications for heaters, materials handling and pollution control equipment and incinerators and flares for areas 12 to 16 of Newman, KY demonstration plant]

Description: No Description Available.
Date: November 21, 1980
Item Type: Refine your search to only Report
open access

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I Demonstruation Plant, Newman, Kentucky. Appendix B. Best available control technology (BACT) proposals. [Demonstration plant at Newman, KY]

Description: The best available control technology (BACT) proposals for the following areas of the SRC-I demonstration plant are described: coal preparation and handling, SRC process and deashing, coke and liquid fuels (control of particles and hydrocarbon vapors), cryogenic systems and fuel gas purification (including sulfur recovery system and venting of gaseous wastes). (LTN)
Date: November 21, 1980
Item Type: Refine your search to only Report
open access

Lunar radionuclide records of average solar-cosmic-ray fluxes over the last ten million years

Description: Because changes in solar activity can modify the fluxes of cosmic-ray particles in the solar system, the nature of the galactic and solar cosmic rays and their interactions with matter are described and used to study the ancient sun. The use of cosmogenic nuclides in meteorites and lunar samples as detectors of past cosmic-ray variations are discussed. Meteorite records of the history of the galactic cosmic rays are reviewed. The fluxes of solar protons over various time periods as determined f… more
Date: March 21, 1980
Creator: Reedy, R. C.
Item Type: Refine your search to only Article
open access

On-line monitoring of toxic materials in sewage at the Lawrence Livermore Laboratory

Description: It is becoming increasingly important for industry to prevent releases of potentially toxic material to the environment. The Lawrence Livermore Laboratory has developed a system to monitor its sewage effluent on a continuous basis. A representative fraction of the total waste stream leaving the Plant is passed through a detection assembly consisting of an x-ray fluorescence unit which detects high levels of metals, sodium iodide crystal detectors that scan the sewage for the presence of elevate… more
Date: February 21, 1980
Creator: Auyong, M.; Cate, J.L. Jr. & Rueppel, D.W.
Item Type: Refine your search to only Article
open access

Preliminary planning study for safety relief valve experiments in a Mark III BWR pressure suppression system

Description: In response to a request from the Water Reactor Safety Research Division of the US NRC, a preliminary study is provided which identifies key features and consideration involved in planning a comprehensive in-plant Safety Relief Valve experimental program for a Mark III containment design. The report provides identification of program objectives, measurement system requirements, and some details quantifying expected system response. In addition, a preliminary test matrix is outlined which involv… more
Date: April 21, 1980
Creator: McCauley, E.W. & Holman, G.S.
Item Type: Refine your search to only Report
open access

Interim report: studies of boron deposition near geothermal power plants

Description: Measurements in the Geysers area from April until October 1979 when the onset of seasonal rains limited field work are presented. Field studies involved the following three basic types of measurements: cooling tower drift deposition, plant ecological studies, and animal population studies. Brief summaries of the data are presented to demonstrate the types of information obtained. (MHR)
Date: April 21, 1980
Creator: Koranda, J.J.
Item Type: Refine your search to only Report
open access

Evaluation of refractory materials for a nuclear waste incinerator

Description: An experiment to find a suitable refractory lining for a nuclear waste incinerator has been completed. Eleven brick and six castable products were analyzed by optical and scanning microscopy. All the materials were fashioned into cup shapes and subjected to temperatures ranging from 800 to 1200/sup 0/C for as long as six weeks. Some of the cups were charged weekly with pellets made from ash materials that would contact an incinerator liner. Refractory products containing a high percentage of al… more
Date: July 21, 1980
Creator: Grotzky, V. K.; Kneale, P. A. & Teter, A. R.
Item Type: Refine your search to only Report
open access

New developments in measurement technology relevant to the studies of deep geological repositories in domed salt and basalt

Description: This report briefly describes recent geophysical and geotechnical instrumentation developments relevant to the studies of deep geologic repositories. Special emphasis has been placed on techniques that appear to minimize measurement problems associated with repositories constructed in basalt or domed salt. Included in the listing are existing measurement capabilities and deficiencies that have been identified by a few authors and instrumentation workshops that have assessed the capabilities of … more
Date: May 21, 1980
Creator: Ramirez, A.L. & Mao, N.H.
Item Type: Refine your search to only Report
open access

Silicon-on ceramic process: silicon sheet growth and device development for the large-area silicon sheet task of the Low-Cost Solar Array Project. Quarterly report No. 14, January 1-March 31, 1980

Description: The purpose of this research program is to investigate the technical and economic feasibility of producing solar-cell-quality sheet silicon by coating inexpensive ceramic substrates with a thin layer of polycrystalline silicon. The coating methods to be developed are directed toward a minimum-cost process for producing solar cells with a terrestrial conversion efficiency of 11% or greater. By applying a graphite coating to one face of a ceramic substrate, molten silicon can be made to wet only … more
Date: April 21, 1980
Creator: Whitehead, A B; Zook, J D; Grung, B L; McHenry, K; Schuldt, S B & Chapman, P W
Item Type: Refine your search to only Report
open access

Environmental studies group. Annual report for 1978

Description: Group projects included radioecological studies of aquatic and terrestrial systems, land management activities, foodstuff monitoring, dust transport studies including fugitive dust measurements and modeling, and several support programs involving evaluation of the plant's ambient air samplers and airborne tritium monitoring techniques. Some salient results from the several project reports include determination of an appropriate model for mechanically generated fugitive dust dispersion, a r… more
Date: August 21, 1980
Creator: Hunt, D. C. & Hurley, J. D.
Item Type: Refine your search to only Report
open access

Numerical analysis of laminar forced convection in a spherical annulus

Description: Calculations of steady laminar incompressible fluid-flow and heat transfer in a spherical annulus are presented. Steady pressures, temperatures, velocities, and heat transfer coefficients are calculated for an insulated outer sphere and a 0/sup 0/C isothermal inner sphere with 50/sup 0/C heated water flowing in the annulus. The inner sphere radius is 13.97 cm, the outer sphere radius is 16.83 cm and the radius ratio is 1.2. The transient axisymmetric equations of heat, mass, and momentum conser… more
Date: July 21, 1980
Creator: Tuft, D.B.
Item Type: Refine your search to only Article
open access

Experimental determination of lower plenum ECC injection effectiveness

Description: The effectiveness of lower plenum emergency core coolant (ECC) injection during a double ended offset shear cold leg break loss-of-coolant accident (LOCA) was investigated experimentally in a small-scale model of a pressurized water reactor (PWR). In order to determine relative merit of the lower plenum injection concept to mitigate the severity of a large break LOCA, data from lower plenum injection experiments were compared to data from an experiment in the Semiscale Mod-3 sytem in which cold… more
Date: November 21, 1980
Creator: Hanson, R.G.
Item Type: Refine your search to only Article
open access

Surface treatment of lead glass microsphere

Description: The structural arrangement of a hydrated glass surface depends on the composition, thermal history and surface treatment. This paper considers the surface treatment of a lead glass with weak and strong acid solutions and in particular hydrogen peroxide, to give a microscopically clean microsphere.
Date: May 21, 1980
Creator: Andrews, J.E. Jr. & Koo, J.C.
Item Type: Refine your search to only Article
open access

Literature search for the non-aqueous separation of zinc from fuel rod cladding. [After dissolution in liquid metal]

Description: This report reviews the literature of processes for the nonaqueous separation of zinc from dissolved fuel assembly cladding. The processes considered were distillation, pyrochemical processing, and electrorefining. The last two techniques were only qualitatively surveyed while the first, distillation, was surveyed in detail. A survey of available literature from 1908 through 1978 on the distillation of zinc was performed. The literature search indicated that a zinc recovery rate in excess of 95… more
Date: June 21, 1980
Creator: Sandvig, R. L.; Dyer, S. J.; Lambert, G. A. & Baldwin, C. E.
Item Type: Refine your search to only Report
open access

Test results of chemical reactivity test (CRT) analysis of structural materials and explosives

Description: The chemical reactivity test, CRT, is a procedure used to screen the compatibility of component structure materials with explosives. This report contains the results of CRT materials evaluations conducted at Mound Facility. Data about materials combinations are catalogued both under the name of the explosive and the nonexplosive.
Date: March 21, 1980
Creator: Back, Paul S.; Barnhart, Brady V.; Walters, Ronald R.; Haws, Lowell D. & Collins, Louis W.
Item Type: Refine your search to only Report
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