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2,019 Matching Results
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Intermediate-depth geothermal temperature study. Gradient holes: 11-33 and 63-33, Soda Lake, NV
During 1979, Chevron Resources Company drilled two 2000 ft holes near Soda Lake in the Nevada Carson Sink area to obtain subsurface data for inclusion in the US Department of Energy's Northern Basin and Range geothermal reservoir assessment program. Drilling information together with detailed lithologic, geophysical and temperature log data were compiled for each hole and is summarized in this report. Maximum stabilized temperatures of 297/sup 0/F and 367/sup 0/F were encountered at total depth in each of the holes, respectively.
Date:
October 1, 1979
Creator:
Hill, D.G.
Object Type:
Report
System:
The UNT Digital Library
Development of an extended-burnup Mark B design. First semi-annual progress report, July-December 1978. Report BAW-1532-1. [PWR]
The primary objective of this program is to develop and demonstrate an improved PWR fuel assembly design capable of batch average burnups of 45,000-50,000 MWd/mtU. To accomplish this, a number of technical areas must be investigated to verify acceptable extended-burnup fuel performance. This report is the first semi-annual progress report for the program, and it describes work performed during the July-December 1978 time period. Efforts during this period included the definition of a preliminary design for a high-burnup fuel rod, physics analyses of extended-burnup fuel cycles, studies of the physics characteristics of changes in fuel assembly metal-to-water ratios, and development of a design concept for post-irradiation examination equipment to be utilized in examining high-burnup lead-test assemblies.
Date:
October 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Feasibility Studies of in-Situ Coal Gasification in the Warrior Coal Field. Quarterly Report
Studies in support of in-situ gasification involved bench-scale combustor experiments using forward combustion and coke as a fuel. Measurements of the thermal conductivity, thermal diffusivity and reactivity were made on several cokes over a range of temperatures. (LTN)
Date:
October 1, 1979
Creator:
Douglas, George W. & McKinley, Marvin D.
Object Type:
Report
System:
The UNT Digital Library
Axisymmetric instability in a noncircular tokamak
The stability of dee, inverse-dee and square cross section plasmas to axisymmetric modes has been investigated experimentally in Tokapole II, a tokamak with a four-null poloidal divertor. Experimental results are closely compared with predictions of two numerical stability codes - the PEST code (ideal MHD, linear stability) adapted to tokapole geometry and a code which follows the nonlinear evolution of shapes similar to tokapole equilibria.
Date:
October 1, 1979
Creator:
Lipschultz, B.
Object Type:
Report
System:
The UNT Digital Library
District heating and cooling systems for communities through power plant retrofit distribution network. Final report, September 1, 1978-May 31, 1979
This volume presents information on the institutional factors, i.e., legal and regulatory aspects, a preliminary economic analysis, and a proposal for future studies on retrofitting existing thermal power plants so that they can supply heat for district heating and cooling systems for communities. (LCL)
Date:
October 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Solar heating and cooling system design and development. Final report
This project involved the complete design and development of marketable systems for single-family and commercial applications and the delivery, installation, and monitoring of the prototype systems. The program plan, description of systems, including components and their applications, seven operational test sites, system performance and comparisons, and lessons learned are presented. (MHR)
Date:
October 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Wilcox sandstone reservoirs in the deep subsurface along the Texas Gulf Coast - their potential for production of geopressured geothermal energy. Final report
The following subjects are included: regional setting, stratigraphic sections, Lower Wilcox sandstone distribution, formation pressure, formation temperature used to delineate geothermal fairways, Zapata Fairway, Duval Fairway, Live Oak Fairway, De Witt Fairway, Colorado Fairway, and Harris Fairway. Depositional and structural style, formation pressures and temperatures, porosity and permeability, formation water salinity, and Cuero Prospect are covered for De Witt Fairway. Depositional and structural style, formation and fluid properties, and Eagle Lake Prospect are covered for Colorado Fairway. (MHR)
Date:
October 1, 1979
Creator:
Debout, D. G.; Weise, B. R.; Gregory, A. R. & Edwards, M. B.
Object Type:
Report
System:
The UNT Digital Library
Limited-angle imaging in positron cameras: theory and practice
The principles of operation of planar positron camera systems made up of multiwire proportional chambers as detectors and electromagnetic delay lines for coordinate readout are discussed. Gamma converters are coupled to the wire chambers to increase detection efficiency and improve spatial resolution. The conversion efficiencies of these converters are calculated and the results compare favorably to the experimentally measured values.
Date:
October 1, 1979
Creator:
Tam, K.C.
Object Type:
Report
System:
The UNT Digital Library
Silicon on ceramic process. Silicon sheet growth for Large-Area Silicon Sheet Task of the Low-Cost Solar Array Project. Annual report No. 4, September 29, 1978-September 30, 1979
The objective of this research program is to investigate the technical and economic feasibility of producing solar-cell-quality sheet silicon by coating one surface of carbonized ceramic substrates with a thin layer of large-grain polycrystalline silicon from the melt. The effort is divided into several areas of investigation in order to most efficiently meet the goals of the program. These areas include: (1) dip-coating; (2) continuous coating; (3) material characterization; (4) cell fabrication; and (5) theoretical analysis. Progress in all areas of the program is reported in detail. (WHK)
Date:
October 31, 1979
Creator:
Chapman, P W; Zook, J D; Heaps, J D; Koepke, B; Grung, B L & Schuldt, S B
Object Type:
Report
System:
The UNT Digital Library
Site-specific legal and institutional analysis of the barriers to geothermal hydrothermal commercialization present at target prospects in the five Pacific Rim states
The specifics of the permitting process, land access, power plant siting, water law, and other legal or institutional barriers or conflicts are presented for each of the most highly regarded target electric prospects in the five Pacific Rim states: California, Hawaii, Alaska, Oregon, and Wasington. (MHR)
Date:
October 20, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Investigation of the feasibility of using wind power for space heating in colder climates. Annual report for the period ending June 30, 1978. [University of Massachusetts Wind Furnace project]
This report presents the background and progress to date for the Wind Furnace project at the University of Massachusetts. The organization of the report gives a general description of the Wind Furnace installed at Solar Habitat-I with performance and operational data of general inerest. More detail is presented under the summary discussions for each task with referenced technical reports and published papers giving a full description of the specific tasks.
Date:
October 1, 1979
Creator:
Cromack, D E
Object Type:
Report
System:
The UNT Digital Library
Generating technology assessment. Phase I work plan, Task 1 report
A plan of work outlining information to assess electric generating technologies is presented. Projections are made of realistic and understandable engineering and cost assessments of nonnuclear electrical generating technologies. A computer-based method of producing such engineering and cost estimates for use by EIA's Coal and Electric Power Analysis Division is to be developed and implemented. Technologies and processes to be assessed are: all nonnuclear conventional and nonconventional (coal gasification, advanced combustion turbines, atmospheric fluidized bed combustion, fuel cells, geothermal, solar thermal and photovoltaics, biomass conversion to electricity, ocean thermal, wind, and MHD). Engineering specifications recommended for determination are listed. Compatibility of the technologies are to be assessed with EIA models: MEFS, LEAP, and NCM.
Date:
October 15, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Analysis of regional banks' efforts to promote energy conservation among commercial customers. Task II
The study approach explored the hypothesis that regional banks can play an important role in disseminating energy conservation information to their commercial/industrial customers. The four phases of the study are described in detail. (MCW)
Date:
October 30, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Seismic evaluation of commercial plutonium fabrication plants in the United States
This report is an overview of Lawrence Livermore National Laboratory's seismic assessment of six commercial plutonium fabrication plants licensed by the US Nuclear Regulatory Commission (NRC) before September 2, 1971. The seismic assessment generally has three parts: (1) documentation of the structural condition of each facility and its critical equipment; (2) characterization of the seismic hazard (i.e., determination of peak ground acceleration vs return period for each site); and (3) evaluation of seismic capacity to determine ground motion levels at which critical structures and equipment fail. The failure evaluation used structural capacities of median-centered strength characteristics of the as-built configurations from (1) and seismic hazard input from (2). Results of the assessment were partial input for an overall natural risks study by the NRC.
Date:
October 1, 1979
Creator:
Bernreuter, D. L.; Coats, D. W.; Murray, R. C. & Tokarz, F. J.
Object Type:
Report
System:
The UNT Digital Library
Amorphous thin films for solar cell application. Quarterly report No. 2, July 1-September 30, 1979
Research on the fabrication of efficient amorphous silicon solar cells is reported. Work on the deposition of a-Si:H films by sputtering is described. Other areas under scrutiny include (a) degree and effect of oxygen and/or argon incorporation into the films, (b) dopant transfer from target to films, (c) dopant and alloy ion-implantation effects, and (d) film annealing behavior. Results to date are presented. (WHK)
Date:
October 1, 1979
Creator:
Jonath, A D; Crowley, J L; MacMillan, H F; Anderson, W W; Junga, F A; Kooi, C F et al.
Object Type:
Report
System:
The UNT Digital Library
Strain distribution and model for formation of eastern Umtanum Ridge anticline, south-central Washington
Umtanum Ridge in south-central Washington is the topographic expression of a complex anticline within the Yakima Fold system in the Miocene Columbia River Basalt Group. The Yakima Fold system, which is partly contained within the Hanford Site, is an example of a layered basalt sequence folded near the surface of the earth. The Pasco Basin stratigraphic nomenclature is used in this repot. Rockwelll Hanford Operations, under contract to the US Department of Energy, is investigating the feasibility of therminal high-level nuclear waste storage in mined repositories in basalt beneath the Hanford Site. Because thereis essentially no basalt within the Site that has not been involved in some folding, any potential location for a repository will be either on the limbs or near the hinge zone of a Yakima Fold structure. Umtanum Ridge is the best exposed Yakima Fold structure in the vicinity of the Site for studying the nature and three-dimensional style of deformation of a multilayered basalt sequence. The structural geometry, distribution of strain within the Umtanum structure and deformational mechanisms of the Umtanum Ridge are discussed.
Date:
October 1, 1979
Creator:
Price, E.H.
Object Type:
Article
System:
The UNT Digital Library
Flash hydropyrolysis of coal. Quarterly report No. 9, April 1-June 30, 1979
Both the North Dakota lignite and New Mexico sub-bituminous coal have been hydrogasified in the Flash Hydropyrolysis unit with yields ranging up to about 85 to 90% conversion of the available carbon at 2500 psi and 875 to 900/sup 0/C. The lignite appears to be less reactive at lower pressure than the sub-bituminous coal, producing an average of 40% gaseous yield at 1000 psi and 900/sup 0/C while the sub-bituminous produced over 50%. The reactivity of both coals is dependent on the hydrogen partial pressure but does not appear to be affected by H/sub 2//coal feed ratio. When the H/sub 2//coal ratio was reduced to 0.05 and sub-bituminous coal was run at 2500 psi and 875/sup 0/C, a high methane concentration of 57% was achieved. However, the yield or conversion of carbon to gas was limited to 30% which may be attributed to the reduction in hydrogen partial pressure during the run. Further work is being planned to obtain additional data at the lower pressure and H/sub 2//coal feed ratios. Illinois No. 6 coal, a caking bituminous, has been successfully run in the experimental equipment both treated with calcium and untreated. A reaction model, previously developed, has been modified and …
Date:
October 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Ceramic coatings on diesel engine components. Period covered: January 1979-August 1979
Diesel engines with imporved thermal efficiency and fuel economy or flexibility will be required to meet automotive energy conservation goals. These goals can be met by minimizing engine heat loss to the coolant, i.e., by the use of a thermal insulating barrier on the interior surfaces of the combustion space. The development and testing of ceramic coatings for diesel engine components are discussed. These coatings include oxides of Al, Cr, Zr, Mg, Si, Ti, and Ca, and Mo and Ch carbides. Data on their application and thermodynamic and wear characteristics are presented. It was concluded that, although the spraying processes used have not been optimized, plasma-spray technology has made it possible to coat diesel engine parts with ceramic materials. Preliminary results show that, relative to valves and piston crowns: stabilized ZrO/sub 2/ coating under certain conditions increases the working life of various components; higher combustion temperature may improve the thermal efficiency by increased turbocharger air delivery; reduction in the component temperatures decreases the thermal stresses; the ZrO/sub 2/.MgO shows improved corrosion resistance in combustion gases compared to ZrO/sub 2/.Y/sub 2/O/sub 3/ and ZrO/sub 2/.CaO; the limitations of the coatings have to be defined in more detail; and the adherence of …
Date:
October 1, 1979
Creator:
Kvernes, I & Lillerud, K P
Object Type:
Report
System:
The UNT Digital Library
Program SIGMA1 (version 79-1): Doppler broaden evaluated cross sections in the evaluated nuclear data file/version B (ENDF/B) format
Program SIGMA1 Doppler-broadens evaluated cross sections in the ENDF/B format. The program requires that input cross sections be tabulated as linearly interpolable functions of energy in ENDF/B File 3; broadened cross sections, in this same form, replace the original values in the output tape. This report describes the methods used in the code and serves as a user's guide. A listing of the source deck is available on request.
Date:
October 31, 1979
Creator:
Cullen, D.E.
Object Type:
Report
System:
The UNT Digital Library
Photoelectronic properties of zinc phosphide crystals, films and heterojunctions. Quarterly progress report No. 2, July 1-September 30, 1979
The closed tube horizontal growth method has been pursued for the growth of single crystals of Zn/sub 3/P/sub 2/. The rate of material transport was increased by increasing the temperature difference between source and growth regions and by decreasing the distance involved. A boule with only 2 grains in a 12 mm diameter has been obtained. The as-grown resistivity of this single crystal Zn/sub 3/P/sub 2/ was 50 ohm-cm, which was reduced to 10 ohm-cm by subsequent annealing in hydrogen at 410/sup 0/C. Initial ZnO/Zn/sub 3/P/sub 2/ (CVD deposition of ZnO) and CdS/Zn/sub 3/P/sub 2/ (CdS by vacuum evaporation) heterostructures were fabricated using small samples of single crystal Zn/sub 3/P/sub 2/ sent from Tony Catalano at Delaware. Not surprisingly, only small photoresponse was obtained with these totally experimental cells. Zn/sub 3/P/sub 2/ films deposited on glass by CSVT were shown to be amorphous whereas those deposited on single crystal CdS were polycrystalline. Indeed several samples showed appreciable large-grain columnar growth at an angle to the substrate plane. Laser annealing was shown to have dramatic effects in crystallizing Zn/sub 3/P/sub 2/ films deposited on Si/sub 3/N/sub 4/ film substrates on sngle crystal Si. Thin films of Zn/sub 3/P/sub 2/ were deposited …
Date:
October 1, 1979
Creator:
Bube, R.H.
Object Type:
Report
System:
The UNT Digital Library
Construction and operation of an electromagnetic shower detector
An electromagnetic shower detector consisting of lead glass blocks and scintillator hodoscopes was constructed. During calibration runs detector resolutions were measured for single incident electrons. Performance of the detector for ..pi../sup 0/ and multi-photon showers, including sizable backgrounds, was studied during actual data runs. This detector was used in Fermilab Experiment 451.
Date:
October 1, 1979
Creator:
Garbincius, P. H.; Polychronakos, V. A.; Barton, D. S.; Dobrowolski, T.; Halliwell, C.; Kendall, H. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Municipal waste energy recovery
Materials recovery and energy recovery from municipal solid waste, offering at least a partial solution to a city's solid waste management and disposal problem, are discussed. The most important barriers and issues which relate to energy and materials recovery from waste in urban areas are discussed. Energy recovery practices and processes, environmental issues, and municipal market economics are considered. (MCW)
Date:
October 30, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Energy sensitivity and variability analysis of Populus hybrid short-rotation plantations in northeastern United States. Final report
Production of biomass by corn-like plantations has been demonstrated by a number of researchers. These forest analogs of agronomic cropping systems have the potential to yield substantially more biomass per unit area than traditional forests. Care is needed in choosing the appropriate sites, species, spacing, and harvesting strategies. Opportunities for increased yields have been suggested for fertilization and irrigation. Utilization of the biomass from these dense plantations for energy was the focus of this study. Although the amount of energy potential of the biomass is important, the energy output must be greater than the energy input for biomass to have a positive benefit to society. Further, in order to completely evaluate the net energy of the system it is necessary to examine the energy out-to-in ratios on the basis of usable energy (for example, usable heat, process steam and electricity), as well as all of the energies expended in producing, harvesting, transporting and processing the biomass. The objective of this study is to establish and analyze the energy inputs for selected management strategies in order to evaluate the sensitivity and variability of the energy inputs in the net energy analysis, and based on the net energy analysis to recommend a …
Date:
October 24, 1979
Creator:
Bowersox, T.W. & Blankenhorn, P.R.
Object Type:
Report
System:
The UNT Digital Library
Fuel cell applied research: electrocatalysis and materials. Quarterly report, January 1-March 31, 1979
In situ regeneration of surface areas of sintered carbon supported platinum electrodes in 85% H/sub 3/PO/sub 4/ at 150/sup 0/C was studied. The kinetics of oxygen reduction on platinum in trifluoromethane sulfonic acid was investigated. Overpotentials in solid oxide electrolyte fuel cells were studied. Results are presented and discussed. Also, a survey of the status of studies of phosphoric acid and molten carbonate fuel cells is described. (WHK)
Date:
October 1, 1979
Creator:
Srinivasan, S.; Isaacs, H. S.; McBreen, J.; O'Grady, W. E.; Olender, H.; Olmer, L. J. et al.
Object Type:
Report
System:
The UNT Digital Library