Preliminary designs for ocean thermal energy conversion (OTEC) stationkeeping subsystems (SKSS). Task II. Conceptual design. Final report (open access)

Preliminary designs for ocean thermal energy conversion (OTEC) stationkeeping subsystems (SKSS). Task II. Conceptual design. Final report

The study is presented in five sections: design loads, conceptual designs, trade studies, cost analysis and concept evaluation and ranking. Extensive appendixes provide back up calculations and data to support the results. Environmental forces and yaw moments acting on the barge and spar in the various design sea states are presented including wave, wind and current effects. A parametric analysis illustrates the impact on holding power requirement of varying the return periods for operational and extreme sea state. The conceptual designs are presented for the barge followed by those for the spar, including configuration definition, performance characteristics, interfaces, areas for development, and deployment scenarios for selected concepts. The concept definition is followed by a set of trade studies that were performed to evaluate candidate anchor types and anchor leg materials. Parametric variations in anchor leg characteristics, wire-rope-to-chain length ratio for example, illustrate the influence of the significant design parameters on performance. An extensive cost analysis of the candidate SKSS concepts is presented, including cost estimates, life cycle cost scenarios leading to expected value of life cycle cost, and cost equivalence of operational failures. An evaluation of the eight SKSS concepts is presented, including assessment of performance and rankings based on …
Date: July 27, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Reservoir characteristics in Uinta basin gas wells. Final report, September 1, 1978-January 31, 1980 (open access)

Reservoir characteristics in Uinta basin gas wells. Final report, September 1, 1978-January 31, 1980

Volumes of 29 lenticular tight gas sandstone reservoirs in the Uinta Basin, Utah have been approximated from long-term pressure buildups on 6 wells. Average reservoir volume was interpreted to be about 240,000 ft/sup 3/ per ft of net pay. Outcrop reservoir geometry studies indicate an average reservoir volume (without any reservoir interconnection assumed) of about 30% less than the average based upon production analysis. Therefore, some reservoir interconnection may exist. Results of this study are consistent with the Knutson lenticular reservoir model in which average reservoir width is 22 times the gross sand thickness, length is 10 times the width, and reservoir interconnection is a function of the sand fraction in the productive interval. Apparent reservoir permeabilities, assuming radial flow, range from .009 to .052 millidarcies and actual sandstone matrix permeabilities are interpreted to range from .06 to .21 millidarcies. Fracture half lengths are interpreted to be about 0.1 ft/bbl of fluid with an average proppant load of 1.2 to 1.7 lb/gal at injection rates of 18 to 24 BPM and injection pressures of 2,500 to 4,600 psi for each 100 ft of gross sand in the fracced interval.
Date: November 27, 1979
Creator: Boardman, C.R. & Knutson, C.F.
Object Type: Report
System: The UNT Digital Library
Formulary for MEQALAC design (open access)

Formulary for MEQALAC design

From the space-charge limits for quadrupole transport systems discussed in an earlier report, some simple relations are obtained that will assist in the design of practical systems.
Date: November 27, 1979
Creator: Maschke, A.W.
Object Type: Report
System: The UNT Digital Library
Nondestructive, energy-dispersive, x-ray fluorescence analysis of actinide stream concentrations from reprocessed nuclear fuels (open access)

Nondestructive, energy-dispersive, x-ray fluorescence analysis of actinide stream concentrations from reprocessed nuclear fuels

In one plan for reprocessing LWR spent fuel, after separation from fission products and transplutonics, part of the U and all of the Pu in a nitrate solution will form a coprocessed stream which is then evaporated and sent to a hold tank for accounting. The remaining U fraction will be purified and sent to a separate storage tank. These two streams can be monitored using x-ray fluorescence analysis. This report discusses equipment, spectra, cell calibration, and dynamic concentration measurements. 7 figures. (DLC)
Date: June 27, 1979
Creator: Camp, D. C. & Ruhter, W. D.
Object Type: Article
System: The UNT Digital Library
Reserve seismic capacity determination of a nuclear power plant braced frame with piping (open access)

Reserve seismic capacity determination of a nuclear power plant braced frame with piping

A typical diagonal braced steel frame was developed to determine the amount of reserve capacity that is available beyond elastic design levels. The frame was analyzed first using elastic static and dynamic analyses. The loadings included dead and live load, an equivalent static lateral earthquake load, two response spectra and a suite of eight earthquake time history records. The response spectra used were the Housner and Regulatory Guide 1.60. The time histories represented different site conditions, distances to causative faults and magnitudes. The lateral static load and Housner spectrum represent vintage design criteria, while the R.G. 1.60 and time history analyses reflect current methodology. The elastic limit responses of the structure were determined along with the accompanying threshold peak ground accelerations (threshold g values). The frame was then analyzed using the program DRAIN-2D to perform two-dimensional elastic--plastic analyses for the eight time histories.
Date: February 27, 1979
Creator: Nelson, T.A.
Object Type: Article
System: The UNT Digital Library
Failure analysis of a Hastelloy C-276 geothermal injection pump shaft (open access)

Failure analysis of a Hastelloy C-276 geothermal injection pump shaft

A metallurgical analysis of a fractured Hastelloy C-276 brine injection pump shaft was carried out to determine the cause of failure. Loss of load carrying cross section due to intergranular corrosion by molten bronze bearing alloy followed by torsional overload of the remaining section was the cause of failure. Lack of evidence for brine induced corrosion or stress corrosion of the Hastelloy C-276 alloy is consistent with prior successful experience with this material in contact with high temperature, high salinity Salton Sea Geothermal Field brines.
Date: July 27, 1979
Creator: Tardiff, G. E. & Snell, E. O.
Object Type: Report
System: The UNT Digital Library
Collisional relaxation of low lying electronically excited states of uranium: f/sup 3/ds/sup 2/(/sup 5/K/sub 5//sup 0/) and (/sup 5/L/sub 7//sup 0/) (open access)

Collisional relaxation of low lying electronically excited states of uranium: f/sup 3/ds/sup 2/(/sup 5/K/sub 5//sup 0/) and (/sup 5/L/sub 7//sup 0/)

Laser induced fluorescence techniques were used to measure the rates of electronic relaxation of atomic uranium in a beam-gas scattering apparatus. Cross sections for the collisional deactivation of the U f/sup 3/ds/sup 2/(/sup 5/K/sub 5//sup 0/) and (/sup 5/L/sub 7//sup 0/) states by H/sub 2/, D/sub 2/, HD, CH/sub 4/, N/sub 2/, and CO at room temperature are reported. Upper limits for quenching cross sections with He were also obtained. Relaxation of these uranium metastables by molecular hydrogen (H/sub 2/, D/sub 2/ and HD) and methane appears to proceed by resonant electronic-to-rotational or electronic-to-vibration/rotational energy transfer processes. 12 references.
Date: June 27, 1979
Creator: Chen, H. L. & Borzileri, C.
Object Type: Article
System: The UNT Digital Library
Formation of hydrogen negative ions by surface and volume processes with application to negative ion sources (open access)

Formation of hydrogen negative ions by surface and volume processes with application to negative ion sources

During the last few decades interest in negative-hydrogen ion sources has been directed mainly toward synchrotron and other particle accelerator applications, with emphasis on high current densities delivered for short pulses. But within the last several years there has been an awareness in the magnetic fusion program of the future need for negative ions as a means for generating high energy neutral beams, beams with energies above a few hundred keV. Negative ions seem to be the only effective intermediary for efficiently producing such beams. Although methods for generating negative ion beams have relied upon synchrotron concepts, the requirements for fusion are very different: here one is interested in more moderate current densities, up to 100 m A cm/sup -2/, but with continuous operation. Proposed source modules would accelerate of the order of 10 A of beam current and deliver several megawatts of beam power. Both H/sup -/ and D/sup -/ beams are being considered for application in different reactor systems. The conceptualization of negative ion sources is now in a very volatile stage. But of the great variety of proposals that have been offered to date, three general areas appear ready for development. These are: first, the double charge …
Date: June 27, 1979
Creator: Hiskes, J.R.
Object Type: Article
System: The UNT Digital Library
Project monitor. Final report. [Allegheny County, PA] (open access)

Project monitor. Final report. [Allegheny County, PA]

Results are reported of a study of consumers' energy attitudes and behavior. Household consumers and small business consumers (both retail and manufacturing) responded to the survey, but only the household results are reported. The study sought to understand energy-related behavior at the level where the various components of energy policy intersect. Attempts are made to attain this goal by determining the extent to which various properties of the individuals and firms are associated with various amounts of conservation. A representative sample of the adult population in Allegheny County, Pennsylvania was interviewed. Part I introduces the measures of household conservation to be used in the survey. Part II analyzes each of the types of energy conservation - general, winterization, heating, cooling, appliance, transportation, and electricity reductions - and relates them to demographic, situation, attitudinal, and perceptual variables in the household sample. Part III deals with the impacts of Project Pacesetter and the United Mine Workers' strike against the coal operators - particularly, the impact of the coal strike on household residents of Allegheny County. Part IV summarizes the findings and uses them for recommendations regarding energy conservation policy. Additional data are presented in 4 appendices. (MCW)
Date: April 27, 1979
Creator: Hammond, Paul Y.; Beck, Paul & Doctors, Samuel I.
Object Type: Report
System: The UNT Digital Library
Social and economic research program for the Geysers-Calistoga known geothermal resource area (open access)

Social and economic research program for the Geysers-Calistoga known geothermal resource area

The purpose of this study is to assess the economic and social effects of projected geothermal resource development for both direct use and electric power generation and to analyze local regulatory policy options designed to mitigate adverse effects. The key issues are land use, fiscal and public infrastructure systems, demography, and the local economy. The study has seven elements: a computer-based inventory and analysis of land characteristics, constraints, sensitivity, and suitability for various land uses; projections of direct and electric geothermal development; primary and induced economic activity using an input-output model; demographic changes; the land and infrastructural demand created; an assessment of the economic and social effects of various configurations in land use that could result; and an analysis of various local regulatory policy options to mitigate adverse effects. The study is a cooperative effort among two national laboratories, a regional agency, and the four Geysers-area counties (Lake, Mendocino, Napa, and Sonoma). The assessment results are intended to guide Department of Energy planners on the environmental consequences of program implementation. The regulatory policy analysis is intended for local officials who are implementing development-management policy.
Date: March 27, 1979
Creator: Hall, C. & O'Banion, K.
Object Type: Report
System: The UNT Digital Library
Hydrogeochemical and stream sediment reconnaissance basic data for Hutchinson NTMS Quadrangle, Kansas (open access)

Hydrogeochemical and stream sediment reconnaissance basic data for Hutchinson NTMS Quadrangle, Kansas

Results of a reconnaissance geochemical survey of the Hutchinson Quadrangle, Kansas are reported. Field and laboratory data are presented for 592 groundwater and 616 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. The groundwater data indicate that the southwestern corner of the quadrangle offers some potential for uranium mineralization. Five large clusters of groundwaters with high uranium values occur here. Wells in the southwestern corner produce waters from the Permian Nippewalla Group and the overlying Kiowa Shale that often contain high concentrations of arsenic, molybdenum, selenium, and vanadium which are known to associate with uranium in sandstone deposits. The stream sediment data indicate that most of the uranium and thorium anomalies occur as placer-type concentrations associated with Quaternary deposits. There are three areas that show groups of high uranium and thorium concentrations in the stream sediments; one in the northeast in Chase, Lyon, Morris, and Wabaunsee Counties; one in Dickinson and Geary Counties; and the third, the large area west of long. 97/sup 0/ …
Date: July 27, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Project Monitor: Executive Summary; Introduction; and Summary and Recommendations. Final report. [Allegheny County, PA] (open access)

Project Monitor: Executive Summary; Introduction; and Summary and Recommendations. Final report. [Allegheny County, PA]

This report contains the following parts of the larger, companion report, DSE--8702-T2: (a) executive summary; (b) introduction; and (c) summary and recommendations.
Date: April 27, 1979
Creator: Hammond, Paul Y.; Beck, Paul & Doctors, Samuel I.
Object Type: Report
System: The UNT Digital Library
Jet angular distribution from quantum chromodynamics (open access)

Jet angular distribution from quantum chromodynamics

The quantum chromodynamic correction to jet (defined a la Sterman and Weinberg) angular distribution in energetic e/sup +/e/sup -/ annihilation is calculated to order ..cap alpha../sub s/ keeping exact dependence on epsilon and delta. Deviations from the zeroth order distribution, 1 + cos/sup 2/theta, for are found relatively large values of epsilon and delta. This effect could be tested at the existing e/sup +/e/sup -/ colliding beam facilities.
Date: June 27, 1979
Creator: Nandi, S. & Wada, W.W.
Object Type: Report
System: The UNT Digital Library
Method of inspecting Raschig rings by neutron absorption counting (open access)

Method of inspecting Raschig rings by neutron absorption counting

A neutron counting method for inspecting borosilicate glass Raschig rings and an apparatus designed specifically for this method are discussed. The neutron count ratios for rings of a given thickness show a linear correlation to the boron oxide content of the rings. The count ratio also has a linear relationship to the thickness of rings of a given boron oxide content. Consequently, the experimentally-determined count ratio and physically-measured thickness of Raschig rings can be used to statistically predict their boron oxide content and determine whether or not they meet quality control acceptance criteria.
Date: July 27, 1979
Creator: Morris, R.N.; Murri, R.L. & Hume, M.W.
Object Type: Report
System: The UNT Digital Library
FFTF operator training (open access)

FFTF operator training

The qualifications required and the training received by FFTF operators are described. The training includes sodium fill training and cold plant qualification. Requirements for supervisors are also outlined. Arrangement of personnel at FFTF is described. Requalification training and recertification are considered. (DLC)
Date: September 27, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Technical options for the future of West Valley (open access)

Technical options for the future of West Valley

The West Valley Processing Plant reprocessed spent fuel from 1966 to 1972. It was shut down in 1972 for modifications, and in 1976 NFS decided not to renew the lease. This paper discusses the technical options for dealing with the financial responsibilities. The study shows that there is a range of options for both decommissioning and continued use of the plant with decommissioning involving either the immobilization or the off-site disposal of the wastes. (DLC)
Date: February 27, 1979
Creator: Luner, C. & Lazur, E.G.
Object Type: Article
System: The UNT Digital Library
Experimental test accelerator (ETA) (open access)

Experimental test accelerator (ETA)

The Lawrence Livermore Laboratory is constructing an induction linac with the following parameters 10kA, 50ns FWHM pulse width, 5MeV, and 5PPS. This paper describes the design features of the 2.5 MeV injector and it's associated pulsed power system.
Date: March 27, 1979
Creator: Hester, R. E.; Bubp, D. G.; Clark, J. C.; Chesterman, A. W.; Cook, E. G.; Dexter, W. L. et al.
Object Type: Article
System: The UNT Digital Library
Threshold evaluation data revision and computer program enhancement. Final report (open access)

Threshold evaluation data revision and computer program enhancement. Final report

The Threshold Evaluation System was developed to assist the Division of Buildings and Community Systems of the Department of Energy in performing preliminary evaluation of projects being considered for funding. In addition, the evaluation has been applied to on-going projects, because information obtained through RD and D may alter the expected benefits and costs of a project, making it necessary to reevaluate project funding. The system evaluates each project according to its expected energy savings and costs. A number of public and private sector criteria are calculated, upon which comparisons between projects may be based. A summary of the methodology is given in Appendix B. The purpose of this task is to upgrade both the quality of the data used for input to the system and the usefulness and efficiency of the computer program used to perform the analysis. The modifications required to produce a better, more consistent set of data are described in Section 2. Program changes that have had a significant impact on the methodology are discussed in Section 3, while those that affected only the computer code are presented as a system flow diagram and program listing in Appendix C. These improvements in the project evaluation methodology …
Date: February 27, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Polymer surface coatings for downconversion of uv radiation and inhibition of photodegradation. Semiannual technical status report, June 1978--January 1979 (open access)

Polymer surface coatings for downconversion of uv radiation and inhibition of photodegradation. Semiannual technical status report, June 1978--January 1979

Cerous (III) polymethacrylate (CPMA), prepared by saponifying a commercial polymethyl methacrylate (PLEXIGLAS) and subsequently neutralized with cerous nitrate, were cast into film from its ethyl acetate solution. CPMA films were subjected to intense uv radiation in order to accelerate the solarization, and they were found to be substantially less susceptible to uv induced degradation than the control which was the film cast from polymethacrylic acid (PMA). A set of CPMA coated PLEXIGLAS films were then tested by the same method and the films with coating thickness of 5..mu.. were inhibitory to uv degradation although the surface density of cerous ion was not uniform. A solar simulator has been installed and calibrated, and initial optical and aging measurements have been made on a series of CPMA PLEXIGLASS films. An automated solarization test system is in the process of being installed.
Date: January 27, 1979
Creator: Yen, W M & Yu, H
Object Type: Report
System: The UNT Digital Library
Semi-annual Progress Report on The Electric Moped (open access)

Semi-annual Progress Report on The Electric Moped

Progress is reported on the feasibility studies of two electric mopeds. One operates on a 12 volt electrical system, and the other on a 24 volt system. Both mopeds are described in detail, and the design and purchase of parts is reported.
Date: December 27, 1979
Creator: Ferschl, M S
Object Type: Report
System: The UNT Digital Library
Hazards from radioactive waste in perspective (open access)

Hazards from radioactive waste in perspective

This paper compares the hazards from wastes from a 1000-MW(e) nuclear power plant to these from wastes from a 1000-MW(e) coal fueled power plant. The latter hazard is much greater than the former. The toxicity and carcinogenity of the chemicals prodcued in coal burning is emphasized. Comparisions are also made with other toxic chemicals and with natural radioactivity. (DLC)
Date: February 27, 1979
Creator: Cohen, B. L.
Object Type: Article
System: The UNT Digital Library
Energy Transduction Between the Catalytic and Ionophoric Sites of Ca exp 2+ + Mg exp 2+ -ATPase Molecule. (open access)

Energy Transduction Between the Catalytic and Ionophoric Sites of Ca exp 2+ + Mg exp 2+ -ATPase Molecule.

None
Date: April 27, 1979
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Computer programs in BASIC language for graphite furnace atomic absorption using the method of additions. Part 1. Operating instructions (open access)

Computer programs in BASIC language for graphite furnace atomic absorption using the method of additions. Part 1. Operating instructions

These instructions describe how to use BASIC language programs to process data from atomic absorption spectrophotometers using the graphite furnace and the method of additions calibration technique. The instructions cover loading the programs, responding to computer prompts, choosing among various options for processing the data, performing operations with an automatic sampler, and producing reports. How the programs interact with each other is also explained. Examples of computer/operator dialogue are presented for typical cases. In addition, a concise set of operating instructions is included as an appendix.
Date: July 27, 1979
Creator: Boyle, W. G., Jr. & Ryan, D. P.
Object Type: Report
System: The UNT Digital Library
Optimal geothermal resource extraction for electric power applications (open access)

Optimal geothermal resource extraction for electric power applications

A phase of ongoing work at the University or Pennsylvania concerning the analysis of capital investments in the development of geothermal electric power facilities is reported. The phase being addressed deals with determining the optimal rate of extraction of geothermal resources for producing electric power. The mathematical approach for estimating an optimal time-path of production to maximize the net present value of a rate sensitive reservoir is formulated.
Date: June 27, 1979
Creator: Blair, P. D. & Cassel, T. A. V.
Object Type: Report
System: The UNT Digital Library