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Eucalyptus plantations for energy production in Hawaii. Technical status report, October 1, 1978-June 30, 1980

Description: Progress made on accomplishing research objectives is reported. The objectives of this project are: (1) to increase the biomass production of Eucalyptus; (2) to determine the optimum requirements to maximize yield; (3) to assess planting, cultivation, harvesting, and transportation equipment requirements; (4) to determine the optimum mixture of biomass (eucalyptus and bagasse) at the generator for the production of electricity; and (5) to evaluate a complete production/conversion system which u… more
Date: July 14, 1980
Partner: UNT Libraries Government Documents Department
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Development of copper sulfide/cadmium sulfide thin film solar cells. First technical progress report, 13 July 1979 to 12 October 1979

Description: Preparation of CdS films by evaporation from a single graphite source, as generally used by the Institute of Energy Conversion (IEC) group at the University of Delaware, has been implemented. Previously at Westinghouse, four evaporation sources were used to permit uniform coverage of large area substrates. The graphite source used in this period is somewhat smaller than the IEC design to permit accommodation to the heater geometry currently available. Initial efforts with the single source evap… more
Date: February 14, 1980
Creator: Szedon, J. R.; Shirland, F. A.; Stoll, J. A. & Dickey, H. C.
Partner: UNT Libraries Government Documents Department
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Quantitative study of mixing in annular and raschig ring filled tanks

Description: A quantitative study of mixing, which utilized the exit age distribution theory, has been completed for bench-scale annular and raschig ring filled tanks, in addition to a pilot-scale annular tank. A study of mixing and fluid flow in a full-scale, single-entry, raschig ring filled tank also was initiated. Results showed the bench-scale raschig ring filled tank approached plug-flow (no mixing) behavior. In a bench-scale annular tank, regardless of whether fluid entered tangentially or nontangent… more
Date: July 14, 1980
Creator: Fredrickson, M. A.
Partner: UNT Libraries Government Documents Department
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Large area silicon sheet by EFG. Annual progress report, October 1, 1978-September 30, 1979

Description: The progress which has been made in 1978/1979 to evolve systems designs for growth stations which produce multiple silicon ribbons by the EFG process is reported. This progress culminated in the demonstration of five ribbon multiple growth in May 1979 and in recent advances toward improved electronic quality of ribbons grown from these machines. These advances were made in large measure by studies in which the composition of the gas environment around the meniscus area was varied. By introducin… more
Date: March 14, 1980
Partner: UNT Libraries Government Documents Department
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OTEC cold water pipe design for problems caused by vortex-excited oscillations

Description: Vortex-excited oscillations of marine structures result in reduced fatigue life, large hydrodynamic forces and induced stresses, and sometimes lead to structural damage and to diestructive failures. The cold water pipe of an OTEC plant is nominally a bluff, flexible cylinder with a large aspect ratio (L/D = length/diameter), and is likely to be susceptible to resonant vortex-excited oscillations. The objective of this report is to survey recent results pertaining to the vortex-excited oscillati… more
Date: March 14, 1980
Creator: Griffin, O. M.
Partner: UNT Libraries Government Documents Department
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Polyacetylene, (CH)/sub x/, as an emerging material for solar cell applications. Technical progress report, October, November, December 1979

Description: Initial studies of p-n heterojunctions formed between undoped trans-(CH)/sub x/ and n-CdS are reported. The junctions were characterized by measurements of current vs voltage (I-V), capacitance vs voltage (C-V), and photovoltaic response spectra. The results are analyzed in terms of the standard heterojunction equations. It is concluded that undoped as-grown films of trans-(CH)/sub x/ are p-type with a residual acceptor concentration of 2 x 10/sup 18/ cm/sup -3/, and that in spite of the comple… more
Date: February 14, 1980
Creator: Heeger, A.J. & MacDiarmid, A.G.
Partner: UNT Libraries Government Documents Department
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Solar collectors: Technical progress report No. 2, 5 March 1979-5 December 1979

Description: The following work is reviewed: accelerated ultraviolet exposure of glazing and housing materials, the evaluation of ultraviolet protective coatings and films, and investigation of antireflective coatings.
Date: March 14, 1980
Creator: Baum, B. & Binette, M.
Partner: UNT Libraries Government Documents Department
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Heat Pipe Testing Program Test Plan

Description: A test plan is given which describes the tests to be conducted on several typical solar receiver heat pipes. The hardware to be used, test fixtures and rationale of the test program are discussed. The program objective is to perform life testing under simulated receiver conditions, and to conduct performance tests with selected heat pipes to further map their performance, particularly with regard to their transient behavior. Performance requirements are defined. Test fixtures designed for the p… more
Date: March 14, 1980
Creator: Bienert, W. B.
Partner: UNT Libraries Government Documents Department
open access

Quarterly technical progress report, January-March 1980

Description: Progress and activities are reported on the following lives of assurance: prevent accidents, limit core damage, maintain containment integrity, and alternate radiological consequences. (DLC)
Date: April 14, 1980
Partner: UNT Libraries Government Documents Department
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Silicon materials task of the Low-Cost Solar Array Project (Phase IV). Effects of impurities and processing on silicon solar cells. Twentieth quarterly report, July-September 1980

Description: The overall objective of this program is to define the effects of impurities, various thermochemical processes and any impurity-process interactions upon the performance of terrestrial solar cells. The results of the study form a basis for silicon producers, wafer manufacturers, and cell fabricators to develop appropriate cost-benefit relationships for the use of less pure, less costly solar grade silicon. Spectral response measurements made on single crystal and polycrystalline silicon solar c… more
Date: November 14, 1980
Creator: Hopkins, R.H.; Hanes, M.H.; Davis, J.R.; Rohatgi, A.; Rai-Choudhury, P. & Mollenkopf, H.C.
Partner: UNT Libraries Government Documents Department
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Geothermal energy and the land resource: conflicts and constraints in The Geysers-Calistoga KGRA

Description: This study of potential land-related impacts of geothermal power development in The Geysers region focuses on Lake County because it has most of the undeveloped resource and the least regulatory capability. First, the land resource is characterized in terms of its ecological, hydrological, agricultural, and recreational value; intrinsic natural hazards; and the adequacy of roads and utility systems. Based on those factors, the potential land-use conflicts and constraints that geothermal develop… more
Date: July 14, 1980
Creator: O'Banion, K. & Hall, C.
Partner: UNT Libraries Government Documents Department
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Energy deposition by high energy protons: comparison of theory and experiment. [HETC computer code]

Description: The ability of the HETC computer code to calculate energy deposited by proton beams of 0.8 to 28.5 GeV in composite targets was evaluated by comparing calculated results with experimental data. The experimental assembly consisted of /sup 238/U shower plates separated by an air gap from a CH/sub 2///sup 238/U detector plate. For protons in the range 0.8 to 5 GeV, HETC data on energy deposited can be considered accurate to a few tens of percent or better for the shower-plate part of the assembly … more
Date: May 14, 1980
Creator: Loewe, W. E. & Pollock, C. W.
Partner: UNT Libraries Government Documents Department
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Geothermal reservoir engineering computer code comparison and validation using the GEONZ simulator program

Description: It was originally proposed to use the GEOTHERM geothermal simulator program to prepare solutions to the first five of the six Department of Energy computer code comparison sets. Valid solutions were anticipated in all of the five problems attempted, but it was expected that problems 3 and 4 might present some difficulties. A more recent version of the program, called GEONZ became available and was used successfully on problems 3 and 4. The new program, GEONZ, had additional capabilities that en… more
Date: November 14, 1980
Creator: Horne, R.N.; Ogbe, D.O.; Temeng, K. & Ramey, H.J. Jr.
Partner: UNT Libraries Government Documents Department
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Mixed ligand chelate therapy for plutonium and toxic metals from energy power production. Final report, April 15, 1977-October 14, 1980. [Mice]

Description: The results of experiments are summarized on the ability of combinations of chelating agents to modify the genotoxicity or tissue distributions. The mutagenicities of Cr and of chelating agents were determined. The metals described in the report are Pu(IV), Cd(II), Cr(III), and Cr(VI). Accurate measurements were made of the ability of CaNa/sub 2/EDTA, CaNa/sub 3/DTPA, and DMPS to reduce mortality in mice given doses (i.p.) of CdCl/sub 2/ well above the 100% lethal level. The efficacy in terms o… more
Date: October 14, 1980
Creator: Schubert, J.
Partner: UNT Libraries Government Documents Department
open access

Design change documentation for the National Coal Model. [Mathematical model modifications]

Description: Several modifications are to be made to the National Coal Model (NCM) under contract number DE-AC01-79EI-10578. The model will be expanded to include two additional demand regions (increasing the total number of demand regions to 41) and one additional supply region (increasing the total number of supply regions to 31). Implementing this change in the NCM will be very simple. The relevant tables and lists will be expanded to include the new regions, and the dimensionality of all relevant arrays… more
Date: May 14, 1980
Partner: UNT Libraries Government Documents Department
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Advanced Gas Cooled Nuclear Reactor Materials Evaluation and Development Program. Progress report, April 1, 1980-June 30, 1980

Description: Objectives of this program are to evaluate candidate alloys for Very High Temperature Reactor (VHTR) Nuclear Process Heat (NPH) and Direct Cycle Helium Turbine (DCHT) applications, in terms of the effect of simulated reactor primary coolant (helium containing small amounts of various other gases), high temperatures, and long time exposures, on the mechanical properties and structural and surface stability of selected candidate alloys. A second objective is to select and recommend materials for … more
Date: November 14, 1980
Partner: UNT Libraries Government Documents Department
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Management plan for fiscal year 1981: Environmental Control Technology Project, geothermal development

Description: The management of the following four assessment tasks are discussed: current progress in H/sub 2/S abatement technology; solid wastes from geothermal power production operations: characterization, handling, and disposal; problems associated with the use of agricultural drainage water for geothermal power plant cooling in the Imperial Valley; and liquid dominated, low total dissolved solids geothermal resources: characterization and evaluation of potential problems due to composition. (MHR)
Date: October 14, 1980
Creator: Morris, W.F. & Stephens, F.B.
Partner: UNT Libraries Government Documents Department
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Preliminary evaluation of environmental issues on the use of peat as an energy source

Description: A study to characterize the environmental issues, that would arise from an extensive peat utilization program has been initiated. The objectives of this preliminary report are to: identify the environmental issues and potential problems; examine the significance of issues in the geographical regions where peat use could be developed; and establish a methodology by which issues can be resolved or clarified through future coordinated private, state, and federal programs. An overview of peat devel… more
Date: March 14, 1980
Creator: King, R.; Richardson, S.; Walters, A.; Boesch, L.; Thomson, W. & Irons, J.
Partner: UNT Libraries Government Documents Department
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Application of Microfabrication Technology to Thermionic Energy Conversion. Progress Report No. 5, August 1, 1980-October 31, 1980

Description: Considerable effort was directed toward the fabrication of a micron-spaced thermionic converter. In the process, a new technique has evolved which appears more promising and has been investigated theoretically. In both techniques, electrodes of similar differential thermal expansions are utilized to prevent shear stresses from disrupting the spacing pillars. The newer technique has additional advantages that simplify the fabrication of the diode structure, thus making it more practical. Progres… more
Date: November 14, 1980
Creator: Brodie, I. & Shepherd, C.
Partner: UNT Libraries Government Documents Department
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Analysis of trapped gas in 1E34 detonators by gas chromatography

Description: A method was developed to extract and then analyze gas trapped in thermally aged 1E34 detonators. This gas was extracted into an evacuated volume and injected into a gas chromatograph for separation and quantitative analysis. To effect this gas extraction, a device was designed for puncturing the detonator cup and capturing the effused gas. Limited testing of five detonators in this device shows amounts of gas ranging from about 0.5 X 10 {sup -7} to 12 X 10 {sup - 7} moles.
Date: May 14, 1980
Creator: Warner, David K.; Back, Paul S. & Barnhart, Brady V.
Partner: UNT Libraries Government Documents Department
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