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Cadmium sulfide/copper sulfide heterojunction cell research. Final report, February 26, 1979-July 15, 1980

Description: Extensive modifications were made to the multi-source deposition apparatus. These include the installation of a larger vacuum chamber on the existing system. The new chamber provides improved inter-source shielding, an improved substrate mounting and heating system, and a vacuum interlock for introducing substrates. CdS resistivity control by both In doping and off-stoichiometric deposition has been investigated. Indium doping has been achieved both by diffusion from a pre-deposited In layer an… more
Date: June 30, 1980
Creator: Thornton, J. A. & Cornog, D. G.
Partner: UNT Libraries Government Documents Department
open access

MHD Coal-Fired Flow Facility. Quarterly technical progress report, January-March 1980

Description: The University of Tennessee Space Institute (UTSI) reports on significant activity, task status, planned research, testing, development, and conclusions for the Magnetohydrodynamics (MHD) Coal-Fired Flow Facility (CFFF) and the Research and Development Laboratory. Although slowed by incessant rain during several days, work on the CFFF Bid Packages progressed to nearly 100 percent completion, excluding later punchlist items. On the quench system, the cyclone separator was delivered to UTSI, and … more
Date: May 30, 1980
Creator: Altstatt, M. C. & Attig, R.C. Baucum, W.E.
Partner: UNT Libraries Government Documents Department
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Characterization of carbonaceous materials using extraction with supercritical pentane

Description: The use of carbonaceous adsorbents is limited by irreversible adsorption of some compounds so the use of supercritical pentane as an extracting solvent was examined. Carbon black appeared to be broken down slowly, but continuously, by the penane. To see if other types of carbon behaved similarly, high purity graphite, technical grade graphites, active carbons, and charcoals were examined. The extracts were characterized by uv spectroscopy, packed column chromatography using flame ionization and… more
Date: May 30, 1980
Creator: Fetzer, J.C.; Graham, J.A.; Arrendale, R.R.; Klee, M.S. & Rogers, L.B.
Partner: UNT Libraries Government Documents Department
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Model validation and sensitivity analysis of solar collector loops. Final technical report

Description: The experimental solar collector systems at Middlebury College have been modified to permit short time resolution studies of solar collector loop performance. A variety of experiments have been performed to measure the following system properties: (a) collector efficiency, (b) collector response to step changes in insolation, (c) collector response to the introduction of cold inlet water, and (d) pump cycling as a function of control sensor location and set points. Data from these experiments h… more
Date: July 30, 1980
Partner: UNT Libraries Government Documents Department
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Chemistry research and development. Progress report, December 1978-May 1979. [Component, pilot plant, instrumentation]

Description: Progress and activities are reported on component development, pilot plant development, and instrumentation and statistical systems. Specific items studied include processing of pond sludge, transport of radioactive materials and wastes, corrosion, decontamination and cleaning, fluidized-bed incineration, Pu contamination of soils, chemical analysis, radiometric analysis, security. (DLC)
Date: June 30, 1980
Creator: Miner, F. J.
Partner: UNT Libraries Government Documents Department
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Conceptual model for regional radionuclide transport from a salt dome repository: a technical memorandum

Description: Disposal of high-level radioactive wastes is a major environmental problem influencing further development of nuclear energy in this country. Salt domes in the Gulf Coast Basin are being investigated as repository sites. A major concern is geologic and hydrologic stability of candidate domes and potential transport of radionuclides by groundwater to the biosphere prior to their degradation to harmless levels of activity. This report conceptualizes a regional geohydrologic model for transport of… more
Date: May 30, 1980
Creator: Kier, R.S.; Showalter, P.A. & Dettinger, M.D.
Partner: UNT Libraries Government Documents Department
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Indirect liquefaction of coal. [Coal gasification plus Fischer-Tropsch, methanol or Mobil M-gasoline process]

Description: The most important potential environmental problems uniquely associated with indirect liquefaction appear to be related to the protection of occupational personnel from the toxic and carcinogenic properties of process and waste stream constituents, the potential public health risks from process products, by-products and emissions and the management of potentially hazardous solid wastes. The seriousness of these potential problems is related partially to the severity of potential effects (i.e., … more
Date: June 30, 1980
Partner: UNT Libraries Government Documents Department
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Development and production cost analysis for subatmospheric Brayton system for Brayton-cycle heat-recovery system, characterization program, Subtask A. 4. 2. 4 of Phase I program plan

Description: This document reports on the cost analysis previously performed for a subatmospheric Brayton cycle system sized to operate off the waste heat of a nominal 200-ton per day glass container furnace. Along with product value and operating costs, the cost data for system components is one of the essential elements required for analyses and prediction of the return-on-investment for a Brayton system. The expected ROI or payback will in turn impact the marketability of the system. This report describe… more
Date: June 30, 1980
Partner: UNT Libraries Government Documents Department
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Process development for automated solar cell and module production. Task 4: automated array assembly

Description: The scope of work under this contract involves specifying a process sequence which can be used in conjunction with automated equipment for the mass production of solar cell modules for terrestrial use. This process sequence is then critically analyzed from a technical and economic standpoint to determine the technological readiness of each process step for implementation. The process steps are ranked according to the degree of development effort required and according to their significance to t… more
Date: June 30, 1980
Creator: Hagerty, J.J.
Partner: UNT Libraries Government Documents Department
open access

Mass spectrometer for the analyses of gases

Description: A 6-in-radius, 60/sup 0/ magnetic-sector mass spectrometer (designated as the MS-200) has been constructed for the quantitative and qualitative analyses of fixed gases and volatile organics in the concentration range from 1 ppM (by volume) to 100%. A partial pressure of 1 x 10/sup -6/ torr in the inlet expansion volume is required to achieve a useful signal at an electron-multiplier gain of 10,000.
Date: June 30, 1980
Creator: Ferguson, J. R. & Rogers, E. R.
Partner: UNT Libraries Government Documents Department
open access

Silicon web process development. Annual report

Description: During this reporting period significant milestones have been met. A new barrier crucible design which consistently maintains melt stability over long periods of time has been successfully tested and used in long growth runs. The pellet feeder for melt replenishment was operated continuously for growth runs of up to 17 hours (a one day growth cycle). The liquid level sensor comprising a laser/sensor system was operated, performed well, and meets the requirements for maintaining liquid level hei… more
Date: June 30, 1980
Creator: Duncan, C. S.; Seidensticker, R. G.; McHugh, J. P.; Hill, F. E.; Skutch, M. E.; Driggers, J. M. et al.
Partner: UNT Libraries Government Documents Department
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Hydrogeochemical and stream sediment reconnaissance basic data for Rapid City NTMS Quadrangle, South Dakota

Description: Results of a reconnaissance geochemical survey of the Rapid City Quadrangle are reported. Field and laboratory data are presented for 417 groundwater and 477 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Groundwater data i… more
Date: June 30, 1980
Partner: UNT Libraries Government Documents Department
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Task XVIII. Technology base assessment

Description: International Conservation and solar energy activities are discussed in view of the enormous increase in oil prices. The current economic outlook of non-oil producing countries is examined. The specific international US energy activities and programs relating to developed and developing countries are described. Problems facing international energy activities are examined. Information on the regional US solar energy centers is included. (MCW)
Date: June 30, 1980
Partner: UNT Libraries Government Documents Department
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Experimental design for reflection measurements of highly reactive liquid or solid substances with application to liquid sodium. [LMFBR]

Description: This technical report describes the experimental part of a program on thermal radiation properties of reactor materials. A versatile goniometer system with associated electronic components and mechanical instruments has been assembled. It is designed to measure spectral, specular reflectances of highly reactive liquid or solid substances over a spectral range of 0.3 ..mu.. to 9 ..mu.. and incidence angles of 12/sup 0/ to 30/sup 0/ off the normal direction. The capability of measuring reflectanc… more
Date: June 30, 1980
Creator: Chan, S.H. & Gossler, A.A.
Partner: UNT Libraries Government Documents Department
open access

Conservation in transportation

Description: A nationwide examination was made of grassroots energy conservation programs related to transportation. Information compiled from civic groups, trade associations, and corporations is included on driver awareness/mass transit; travel; and ride sharing. It is concluded that a willingness by the public to cooperate in transportation energy conservation exists and should be exploited. (LCL)
Date: May 30, 1980
Partner: UNT Libraries Government Documents Department
open access

Site selection and preliminary evaluation of potential solar-industrial-process-heat applications for federal buildings in Texas

Description: The potential for solr process heat applications for federal buildings in Texas is assessed. The three sites considered are Reese Air Force Base, Lubbock; Fort Bliss, El Paso; and Dyess Air Force Base, Abilene. The application at Lubbock is an electroplating and descaling facility for aircraft maintenance. The one at El Paso is a laundry facility. The Abilene system would use solar heat to preheat boiler feedwater makeup for the base hospital boiler plant. The Lubbock site is found to be the mo… more
Date: September 30, 1980
Creator: Branz, Michael A.
Partner: UNT Libraries Government Documents Department
open access

Stream sediment detailed geochemical survey for Date Creek Basin, Arizona

Description: Results of the Date Creek Basin detailed geochemical survey are reported. Field and laboratory data are reported for 239 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. A generalized geologic map of the area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Based on stream sediment geochemical data, significant concent… more
Date: June 30, 1980
Creator: Butz, T. R.; Tieman, D. J.; Grimes, J. G.; Bard, C. S.; Helgerson, R. N. & Pritz, P. M.
Partner: UNT Libraries Government Documents Department
open access

Fundamentals of interruption in vacuum. Eighth progress report

Description: In analyzing the behavior of a vacuum arc during interruption , a mathematical model has been set up to describe the events occurring in the interelectrode gap during interruption. The reliability of the results obtained using such a model depends on the accuracy of the initial assumptions made in setting up the model equations. Previous results obtained from the model analysis were compared to experimental data and it was found that there was a discrepancy close to current zero. To improve our… more
Date: May 30, 1980
Creator: Greenwood, A. N. & Childs, S. E.
Partner: UNT Libraries Government Documents Department
open access

Model for ion confinement in a hot-electron tandem mirror anchor

Description: Anisotropic, hot electrons trapped in local minimum-B wells have been proposed as MHD-stabilizing anchors to an otherwise axisymmetric tandem configuration. This work describes a model for plasma confinement between the anchors and the remainder of the system and calcuates the power loss implied by maintenance of this plasma.
Date: September 30, 1980
Creator: Baldwin, D.E.
Partner: UNT Libraries Government Documents Department
open access

Program TOMSCAT

Description: Program TOMSCAT is an interactive code that calculates the scattering spectrum and background for a Thomson-scattering diagnostic in typical magnetic fusion plasmas. Thomson scattering yields values of the plasma electron temperature T/sub e/ and electron density N/sub e/. This program is intended as an aid for designing Thomson-scattering systems, so all experimental parameters are input by the user. The code is operational on OCTOPUS.
Date: May 30, 1980
Creator: Frank, A.M.
Partner: UNT Libraries Government Documents Department
open access

Economic impact study of consumer product efficiencies. Final report

Description: The economic impact study of household appliance efficiencies is briefly reported. Task I, Direct Impact on Industry, contains 4 subtasks: materials, labor inputs, energy inputs, and investment. Task II, Direct Impact on Consumers, contains 3 subtasks: life-cycle cost to the consumer, usage patterns, and long-term demand forecast and analysis. The 2 subtasks in Task III, Energy Savings and Impact on Utilities, are residential energy savings and cost and impact on utility generating capacity.
Date: May 30, 1980
Partner: UNT Libraries Government Documents Department
open access

Laser excited nonresonant fluorescence spectroscopy. Second annual progress report

Description: The relative populations of numerous tin levels populated by collisional energy transfer from an initially laser pumped level were obtained. These populations yield information concerning the relative rates of energy transfer for the various buffer gases studied. The results indicated two distinct energy transfer behaviors. First, for certain tin levels diatomic collision partners produce populations nearly two orders of magnitude higher than when rare gases are present. This behavior is attrib… more
Date: June 30, 1980
Creator: Gelbwachs, J. A. & Frueholz, R. P.
Partner: UNT Libraries Government Documents Department
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