Search Results

Feasibility study to evaluate the effects of cavitation mixing upon the pumpability and strength characteristics of cements for geothermal applications. Final report

Description: Two on-line emulsification techniques were evaluated as potential systems for preparation of geothermal cement. The objective of the program was met through the demonstrated feasibility and enhanced material properties by cavitation emulsification of geothermal cements. A standard mixing technique for preparing two types of geothermal cements, a lightweight and a heavyweight, was supplemented in a laboratory environment using either of two cavitation mixing techniques. The density and viscosity of the respective slurries and the compressive strength of the corresponding set cements, which were cured at elevated temperature and pressure, were measured to compare the effects of the supplemental techniques with that produced by the established method alone. The test results indicated an enhanced improvement in the compressive strength of the lightweight emulsified cement. The lightweight emulsified cement also showed an increase in the room temperature density. The room temperature viscocity of the emulsified lightweight cement was initially improved. The emulsification of the heavyweight cement had little effect on the material properties.
Date: May 1, 1982
Creator: Stansfield, T.J.
Partner: UNT Libraries Government Documents Department

Roof-mounted solar-and-wind-powered turbine. Final report

Description: This project was an effort to convert solar energy into electricity by utilizing hot-air convection to turn a turbine. To be considered useful, such a mechanism must generate enough electricity at a cost low enough to be competitive with photovoltaics. The extraction of wind energy incidental to the solar experiment was anticipated. The mechanism constructed generates an amount of electricity so small with respect to its cost that it cannot be considered competitive with photovoltaics.
Date: December 22, 1982
Creator: Goerz, J.W.
Partner: UNT Libraries Government Documents Department

New fluorocarbon elastomers for seals for geothermal and other aggressive environments. Final report

Description: Saturated ethyllenic elastomers having a range of methyl group substitution, and a range of partial fluorine substitution were screened. Elastomers based on vinylidene fluoride hexafluoropropylene (VDFHFP) and those based on tetrafluoroethylenepropylene (TFEP) (alternating) were successfully cross-linked by electron-beam radiation and fluorinated to yield elastomeric products, but those based on ethylene-propylene-diene (EPDM) elastomer became brittle after fluorination. The best products were evaluated using tensile strength, elongation at break, solvent swelling, thermogravimetric analysis and infrared. A wide range of carbon-black filled compositions using the TFEP elastomer were cross-linked. The compositions were then fluorinated at or near room temperature for extended periods of time. After fluorination the samples were subjected to geothermal brine at 300/sup 0/C. The best carbon-black filled composition again lasted at least 100 days in the geothermal brine. This filler-elastomer composition was chosen for use in the production of 0-rings. The 0-rings were produced by compression molding using a 30 ton hydraulic press. Various sizes of 0-rings were produced ranging fro 0.8 to 2.0 inches in diameter and from 1/16 to 3/16 inches in width. The final 0-rings were cross-linked at 40 Mrad and fluorinated under the optimized conditions developed for the samples.
Date: December 1, 1982
Creator: Lagow, R.J.
Partner: UNT Libraries Government Documents Department

Geothermal resource assessment for the state of Texas: status of progress, November 1980. Final report. Appendices E through H

Description: These appendices include: a folio of maps showing lineaments perceived across the state; an index and critique of the Landsat images used in perceiving the lineaments; a selected bibliography on lineaments; and a discussion of area-specific assessments of geothermal resources near military bases in Bexar, Travis, and Val Verde Counties. (MHR)
Date: March 1, 1982
Creator: Woodruff, C.M. Jr.; Caran, S.C.; Gever, C.; Henry, C.D.; Macpherson, G.L. & McBride, M.W.
Partner: UNT Libraries Government Documents Department

Intergrated study of the Devonian-age black shales in eastern Ohio. Final report

Description: This integrated study of the Devonian-age shales in eastern Ohio by the Ohio Department of Natural Resources, Division of Geological Survey is part of the Eastern Gas Shales Project sponsored by the US Department of Energy. The six areas of research included in the study are: (1) detailed stratigraphic mapping, (2) detailed structure mapping, (3) mineralogic and petrographic characterization, (4) geochemical characterization, (5) fracture trace and lineament analysis, and (6) a gas-show monitoring program. The data generated by the study provide a basis for assessing the most promising stratigraphic horizons for occurrences of natural gas within the Devonian shale sequence and the most favorable geographic areas of the state for natural gas exploration and should be useful in the planning and design of production-stimulation techniques. Four major radioactive units in the Devonian shale sequence are believed to be important source rocks and reservoir beds for natural gas. In order of potential for development as an unconventional gas resource, they are (1) lower and upper radioactive facies of the Huron Shale Member of the Ohio Shale, (2) upper Olentangy Shale (Rhinestreet facies equivalent), (3) Cleveland Shale Member of the Ohio Shale, and (4) lower Olentangy Shale (Marcellus facies equivalent). These primary exploration targets are recommended on the basis of areal distribution, net thickness of radioactive shale, shows of natural gas, and drilling depth to the radioactive unit. Fracture trends indicate prospective areas for Devonian shale reservoirs. Good geological prospects in the Devonian shales should be located where the fracture trends coincide with thick sequences of organic-rich highly radioactive shale.
Date: September 1, 1982
Creator: Gray, J.D.; Struble, R.A.; Carlton, R.W.; Hodges, D.A.; Honeycutt, F.M.; Kingsbury, R.H. et al.
Partner: UNT Libraries Government Documents Department

Site characterization report for the basalt waste isolation project. Volume II

Description: The reference location for a repository in basalt for the terminal storage of nuclear wastes on the Hanford Site and the candidate horizons within this reference repository location have been identified and the preliminary characterization work in support of the site screening process has been completed. Fifteen technical questions regarding the qualification of the site were identified to be addressed during the detailed site characterization phase of the US Department of Energy-National Waste Terminal Storage Program site selection process. Resolution of these questions will be provided in the final site characterization progress report, currently planned to be issued in 1987, and in the safety analysis report to be submitted with the License Application. The additional information needed to resolve these questions and the plans for obtaining the information have been identified. This Site Characterization Report documents the results of the site screening process, the preliminary site characterization data, the technical issues that need to be addressed, and the plans for resolving these issues. Volume 2 contains chapters 6 through 12: geochemistry; surface hydrology; climatology, meteorology, and air quality; environmental, land-use, and socioeconomic characteristics; repository design; waste package; and performance assessment.
Date: November 1, 1982
Partner: UNT Libraries Government Documents Department

Automobile air-conditioning unit. Final report

Description: In this study the refrigerant in the automobile air-conditioner is compressed by thermal energy in a unique compression system rather than by work in a standard compressor. The compression uses an intermittent compression process with a solid absorbent. The vapor is absorbed by an absorbent at relatively low temperature and ejected as the absorbent temperature is raised. A set of one way valves limits flow to one direction. Major contributions are heat transfer requirements, molecular sieve-refrigerant matching, minimizing non-producing mass, solving thermal fatigue and shock problems, and applying this to automobile air-conditioning. The performance study shows energy savings up to fifty percent are possible, depending on engine load. A twenty percent energy savings with the vehicle tested with the air-conditioner in operation is average. The study also showed that less fuel is used with the windows open than with the air-conditioner operating.
Date: December 1, 1982
Creator: Schaetzle, W.J.
Partner: UNT Libraries Government Documents Department

FORSITE, a multiple-project management system: production of critical-path development schedules for geothermal electric-power-generation projects

Description: FORSITE is an advanced project monitoring software system that is designed to track and forecast the development of multiple projects. This paper describes the organization and operation of the FORSITE system including its overall structure and the functional relationships between its files and data bases. The paper also illustrates the operation of the system with an example of a generic critical-path management schedule produced by FORSITE. A program listing and schedule summaries are included as appendices.
Date: October 1, 1982
Creator: Bernstein, A.J.; Entingh, D.J.; Gerstein, R.E. & Gould, A.V.
Partner: UNT Libraries Government Documents Department

Characteristics of A-150 plastic-equivalent gas in A-150 plastic ionization chambers for p(66)Be(49) neutrons

Description: The evaluation of a gas mixture having an atomic composition similar to that of A-150 TE-plastic has been extended to a high energy neutron therapy beam. A-150 gas, air and methane-based TE gas were each flowed through A-150 plastic-walled ion chambers of different sizes and irradiated with p(66)Be(49) neutrons. A tentative value for anti W(A-150) of 27.3 +- 0.5 J C/sup -1/ was derived for this beam. The anti W value of the A-150 gas mixture is compared to those of methane-based TE gas and of air for the p(66)Be(49) neutron beam as well as to corresponding values found in similar experiments using 14.8 MeV monoenergetic neutrons. 17 references, 3 figures, 3 tables.
Date: July 8, 1982
Creator: Awschalom, M.; Rosenberg, I.; Ten Haken, R. K.; Pearson, D. W.; Attix, F. H. & DeLuca, P. M.
Partner: UNT Libraries Government Documents Department

Geothermal energy planning and communication for native Americans. Final report. Draft

Description: The purpose was to explore and develop geothermal energy resources on Indian lands. Activities included the following: (1) continued review of Indian communities and their potential for geothermal energy development; (2) introduced tribes to the availability of geothermal energy and removed the barriers to the implementation of this energy source; (3) provided information by telephone and by mailing packages of information; (4) published articles on geothermal energy development in the UIPA newsletter and supplied articles to other Indian publication; (5) conducted two seminars specific to geothermal energy development on Indian lands in western states; (6) carried out survey of Indian attitudes and opinions toward energy in general and geothermal energy in specific; (7) incorporated geothermal energy development information in Economic Development Administration sponsored tribal government management programs, and (8) developed draft written material addressing Indian planning problems and supporting their ability to affect a more productive working relationship with government agencies and reduced dependency.
Date: March 30, 1982
Creator: Robertson, T.A.
Partner: UNT Libraries Government Documents Department

Radiological characterization of the TAN-IET facility

Description: The Initial Engine Test (IET) facility is located on the Idaho National Engineering Laboratory (INEL) site at the north end of Test Area North (TAN). The IET facility was constructed and used for the Aircraft Nuclear Propulsion Program during the 1950's and was later used for two other programs: the Space Nuclear Auxiliary Power Transient (SNAP-TRAN) and the Hallam Decontamination and Decommissioning Project. The facility is no longer in use, therefore, a complete radiological characterization was conducted at the IET site. The characterization included measurements of beta-gamma dose rates; beta-gamma and alpha surface contamination; concentrations of selected radionuclides in subsurface storage tanks, surface soil, the exhaust duct, stack and test pad; and a walk-over surface survey of the entire facility. The information contained in this report will be of great value as the IET facility goes through the decommissioning and decontamination process.
Date: June 1, 1982
Creator: Koeppen, L.D.; Rodriguez, S.V.; Wheeler, O.A.; Cadwell, E.D. & Simpson, O.D.
Partner: UNT Libraries Government Documents Department

Pacific Northwest Laboratory plan to maintain radiation exposure as low as reasonably achievable (ALARA)

Description: This document describes the radiation safety program at the Pacific Northwest Laboratory (PNL). The practices and administrative policies of this program support the principles of ALARA (to maintain radiation exposure as low as reasonably achievable). This document also describes a program to establish safety goals at PNL to help ensure that operations are conducted according to ALARA principles.
Date: December 1, 1982
Creator: Higby, D.P. & Denovan, J.T.
Partner: UNT Libraries Government Documents Department

Evaluation of the Beijing Instrument Factory GDB-52LD photomultiplier

Description: Characteristics have been measured for the GDB-52LD 2''-diameter photomultiplier. Some typical photomultiplier characteristics -- such as gain, dark current, anode output current, transit and rise times as a function of voltage between anode and cathode, and photoelectron pulse-height spectrum, the quantu-efficiency, and the single-electron transit time spread were measured. Descriptions of the measuring systems were also given.
Date: December 1, 1982
Creator: Young, E. & Lo, C.C.
Partner: UNT Libraries Government Documents Department

Irradiation performance of HTGR fuel in HFIR experiment HRB-13

Description: Irradiation capsule HRB-13 tested High-Temperature Gas-Cooled Reactor (HTGR) fuel under accelerated conditions in the High Flux Isotope Reactor (HFIR) at ORNL. The ORNL part of the capsule was designed to provide definitive results on how variously misshapen kernels affect the irradiation performance of weak-acid-resin (WAR)-derived fissile fuel particles. Two batches of WAR fissile fuel particles were Triso-coated and shape-separated into four different fractions according to their deviation from spericity, which ranged from 9.6 to 29.7%. The fissile particles were irradiated for 7721 h. Heavy-metal burnups ranged from 80 to 82.5% FIMA (fraction of initial heavy-metal atoms). Fast neutron fluences (>0.18 MeV) ranged from 4.9 x 10/sup 25/ neutrons/m/sup 2/ to 8.5 x 10/sup 25/ neutrons/m/sup 2/. Postirradiation examination showed that the two batches of fissile particles contained chlorine, presumably introduced during deposition of the SiC coating.
Date: March 1, 1982
Creator: Tiegs, T.N.
Partner: UNT Libraries Government Documents Department

Aeromagnetic measurements in the Cascade Range and Modoc Plateau of northern California. Report on work done from December 1, 1980-May 31, 1981

Description: Spectral analysis of aeromagnetic data collected over north-central California during the summer of 1980 aided in determining magnetic-source bottom depths beneath the survey area. Five regions of shallow magnetic source bottom depths were detected: (1) Secret Spring Mountain and National Lava Beds Monument area; (2) the Mount Shasta area; (3) the Eddys Mountain area; (4) the Big Valley Mountains area; and (5) an area northeast of Lassen Peak. Except for the Eddys Mountain area, all regions exhibiting shallow depths are suggested to be due to elevated Curie-point isotherms. Deeper magnetic source bottom depths were mapped throughout the remainder of the study area, with depths greater than 9 km BSL indicated beneath Lassen Peak and greater than 11 km BSL indicated beneath the Western Cascades, Eastern Klamath Mountains, and Great Valley.
Date: January 1, 1982
Creator: Couch, R. & Gemperle, M.
Partner: UNT Libraries Government Documents Department

Study of droplet formation for preparation of spheres by internal gelation

Description: The internal-gelation process can be used to permanently immobilize highly radioactive nuclear wastes. A study was conducted to determine the factors affecting the formation of stable, uniform droplets from a vibrating nozzle, which is a critical step in this process. Experimental data were collected using four nozzle diameters (325 to 586 ..mu..m) with jet velocities ranging from 1 to 10 m/s, and three test liquids, whose physical properties cover the possible range of the waste fluid. A dimensional analysis identified the pertinent dimensionless groups as Reynolds, Weber, Froude, and Power numbers, and a dimensionless droplet spacing. Power-function correlations of the data in these dimensionless groups are presented, which define the region of good droplet formation. A unique catcher-stream design is also presented, which improves performance of the process at higher flow rates and frequencies.
Date: January 1, 1982
Creator: Chu, C.R. & Card, J.C.
Partner: UNT Libraries Government Documents Department

Improving the Quality of Deteriorated Recycle Solvents. Quarterly Report, August 1982-November 1982

Description: The overall objective of this work is to identify reasons for solvent degeneration and to determine a feasible mechanism whereby coal-liquefaction processes can be modified to inhibit solvent degradation during the liquefaction process. In this work, the response in product distribution (or oil yield) to different pre-treatment methods was investigated. In related past works, solvent quality was based solely on the amount of standard coal conversion. In this work, solvent quality was also determined with the use of a standard product separation procedure. A brief discussion of related past works is followed up by a discussion of current work in the area of upgrading deteriorated recycle solvents. The effect of solvent pre-treatment on quality during thermal (non-catalytic) and catalytic liquefaction of coal was examined, and a comparison was made. In addition, the effect of the presence of typical compounds found in coal liquids (e.g. pyrene), during solvent pre-treatment, on solvent quality was also investigated. 2 references, 3 figures, 5 tables.
Date: January 1, 1982
Creator: Tarrer, A. R.; Guin, J. A. & Curtis, C. W.
Partner: UNT Libraries Government Documents Department

Intermediate photovoltaic system application experiment operational performance report. Volume 4, for Beverly High School, Beverly, MA

Description: Performance data are presented for the months of November and December, 1981 for a photovoltaic power supply at a Massachusetts school building. The data include: monthly and daily electrical energy produced; monthly and daily solar energy received; monthly and daily array efficiency; energy produced as a function of power level, voltage, cell temperature, and hour of the day; input, output, and efficiency of two power conditioner units and for the total power conditioning system; energy supplied by the photovoltaic system to the load during each day and month; photovoltaic system efficiency; capacity factor; daily system availability; monthly and hourly insolation; heating and cooling degree days; number of freeze/thaw cycles per month; monthly and hourly ambient temperature; monthly and hourly wind speed; wind direction distribution; hourly cell temperature; and data acquisition mode and recording interval plot. (LEW)
Date: January 1, 1982
Partner: UNT Libraries Government Documents Department

Shallow subsurface temperatures and some estimates of heat flow from the Colorado Plateau of northeastern Arizona

Description: Temperature data to depths of a few hundred meters were obtained from 29 wells in northeastern Arizona; 12 in the region surrounding the San Francisco Volcanic Field, 8 in the Black Mesa area, and 9 in the south-central Colorado Plateau which includes the White Mountains. Although there was evidence for local hydrologic disturbances in many temperature profiles, most wells provided an estimate of the conductive thermal gradient at the site. A few thermal conductivities were measured and were combined with published regional averages for the north-central part of the Colorado Plateau to produce crude estimates of regional heat flux. None of the wells was accessible below the regional aquifers. To these depths, heat flow in the area of the San Francisco Volcanic Field appears to be controlled primarily by regional lateral water movement having a significant downward vertical component of velocity. The mean heat flow of 27 +- 5 mWm/sup -2/ is only a third to a quarter of what we would expect in this tectonic setting. The heat that is being carried laterally and downward probably is being discharged at low enthalpy and low elevation in springs and streams of the Colorado Plateau and Mogollon Rim. In the vicinity of Black Mesa, heat-flow averages about 60 mWm/sup -2/, characteristics of the coal interior of the Colorado Plateau. North of the White Mountain Volcanic Field, the average heat flow is about 95 mWm/sup -2/.
Date: January 1, 1982
Creator: Sass, J.H.; Stone, C. & Bills, D.J.
Partner: UNT Libraries Government Documents Department

Solar-air power plant. Interim report, January 1, 1980-November 1, 1981

Description: The chimney conversion efficiency of transferring solar energy into wind energy for the proposed solar-air power plant has been investigated. The application of a chimney as the air-cooling system for a large-scale photovoltaic concentration power plant to transfer solar energy into electricity has also been studied. Several conclusions in reference to this basic research project and suggestions for further research phases are also summarized in this report.
Date: January 1, 1982
Creator: Chen, I.
Partner: UNT Libraries Government Documents Department

Bulk shielding facility quarterly report, July, August, and September 1980

Description: The Bulk Shielding Reactor (BSR) operated at an average power level of 1919 kW for 85.74% of the time during July, August, and September. Water-quality control in both the reactor primary and secondary cooling systems was satisfactory. The Pool Critical Assembly (PCA) was operated on three occasions for the Pressure Vessel Simulator Benchmark experiment.
Date: January 1, 1982
Creator: Hurt, S. S.; Lance, E. D. & Thomas, J. R.
Partner: UNT Libraries Government Documents Department

Central airport energy systems using alternate energy sources

Description: The purpose of this project was to develop the concept of a central airport energy system designed to supply energy for aircraft ground support and terminal complex utility systems using municipal waste as a fuel. The major task was to estimate the potential for reducing aircraft and terminal fuel consumption by the use of alternate renewable energy sources. Additional efforts included an assessment of indirect benefits of reducing airport atmospheric and noise pollution.
Date: July 1, 1982
Partner: UNT Libraries Government Documents Department

Direct application of west coast geothermal resources in a wet corn milling plant supplementary analyses and information dissemination. Final report, addendum

Description: In an extension to the scope of the previous studies, supplementary analyses were to be performed for both plants which would assess the economics of geothermal energy if coal had been the primary fuel rather than oil and gas. The studies include: supplementary analysis for a coal fired wet corn milling plant, supplementary analysis for an East Coast frozen food plant with coal fired boilers, and information dissemination activities.
Date: March 19, 1982
Partner: UNT Libraries Government Documents Department

gamma. -ray decay and nuclear shapes in /sup 158/Yb

Description: The decay of the entry states in /sup 158/Yb populated in the reactions of 149 MeV /sup 20/Ne with /sup 144/Nd and /sup 146/Nd has been investigated with a 4 ..pi.. multidetector system gated by a Ge counter. The average exitation energy, the ..gamma..-ray spectra and the angular distributions as a function of multiplicity show several changes in the ..gamma..-ray decay. These changes suggest a transition from prolate to particle aligned oblate configuration at I approx. 28. At I 38 to 48 collective transitions with dipole and quadrupole component are observed. Possible explanations for these transitions are discussed in terms of nuclear shapes. Furthermore, above I approx. 48 the dipole component disappears suggesting a further change toward more triaxial shape. 19 references.
Date: January 1, 1982
Creator: Jaeaeskelaeinen, M.; Sarantites, D.G.; Dilmanian, F.A.; Woodward, R.; Puchta, H.; Beene, J.R. et al.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen