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Prevention of biofouling on heat transfer surfaces of ocean thermal energy converters. Progress report, May 1, 1975--November 30, 1975

Description: The objectives of the program were to develop chemical processes utilizing a combination of certain fluorochemicals and tribulyltin based toxicants for treating the surfaces of metals which may be used to fabricate OTEC heat exchangers, and to demonstrate the effectiveness of these surface treatments as antibiofoulants. Aluminium alloy No. 3003-H14 and titanium were testd, neither of which proved satisfactory. (WDM)
Date: December 1, 1975
Creator: Ostrozynski, R.L. & Jones, P.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation of mechanical and metallurgical parameters with the acoustic emission during tensile deformation of several metals and alloys

Description: Acoustic emission was monitored during plastic deformation under dead-weight tensile loading of polycrystalline aluminum, brass, copper, and steel. The acoustic emission data, both threshold-type and frequency-analysis type, were correlated with yield strength, stored elastic energy, strain hardening parameters, loading histories, diffusion processes, slip band motion and mosaic cell size. Major results are presented under the headings discontinuous yielding (Portevin--Le Chatelier Effect), par… more
Date: December 1, 1975
Creator: Hartman, W. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Compilation of TFTR materials data

Description: In order to document the key thermophysical property data used in the conceptual design of Tokamak Fusion Test Reactor (TFTR) systems and components, a series of data packages has been prepared. It is expected that data for additional materials will be added and the information already provided will be updated to provide a project-wide data base.
Date: December 1, 1975
Creator: Havener, W.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sequence of operations: TFTR assembly and disassembly

Description: A conceptual sequence of operations necessary to complete initial assembly of the Tokamak Fusion Test Reactor (TFTR) are described along with subsequent disassembly operations and special techniques planned for use during radioactive disassembly. Special attention is given in this report to techniques, personnel exposure, and equipment needed to effect the opening and closing of a vacuum vessel port and the installation of the vacuum vessel seal weld cutting machine under radioactive conditions. more
Date: December 1, 1975
Creator: Francy, W. J. & Lampe, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental studies of zirconium/aluminum getter pumps

Description: Getters of the type to be utilized as tritium pumps in the foreline of the TFTR torus vacuum system, and presumably in those of the neutral beam injector arms, were evaluated using hydrogen and deuterium. The capacity and speed as rated by the manufacturer (SAES) are found to be conservative. In addition, the getters are shown to continue to pump hydrogen even in the presence of chemically active, impurity gases, provided the getter temperature is maintained at >300/sup 0/C. Since hydrogen pump… more
Date: December 1, 1975
Creator: Lange, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recommendations for a US geothermal research plan. Volume 1

Description: A multidisciplinary study team developed a comprehensive research program. Five- and ten-year program plans emphasize critical five-year milestones. Recommended plans are presented here under constraint of three different five-year budgets: $100, $300 and $500 million, respectively. Plans are detailed in six resource subprograms: high temperature water, moderate temperature water, hot dry rock, brine, geopressured, and dry steam. Also presented are plans for five subprograms common to all geoth… more
Date: December 1, 1975
Creator: Burnham, J. B.; Bloomster, C. H.; Cohn, P. D.; Eliason, J. R.; Peterson, P. L.; Rohrmann, C. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Safety analysis report: packages. 232-H Byproduct Trailer (packaging of radioactive material). Final report. [Helium containing some tritium]

Description: Helium containing some tritium is shipped at low pressure in banks of cylinders mounted on a truck trailer in compliance with 49 CFR 178.350, Specification 7A. The shipping package is not a radiological hazard under normal or accident conditions.
Date: December 1, 1975
Creator: Chalfant, G.G. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FFTF core and primary sodium circuit instrumentation

Description: This paper presents plans, engineering parameters, and some test results for several FFTF core and primary sodium circuit instrument systems. Systems to be discussed include temperature, flow, pressure, leak detectors, level sensors, fuel failure monitoring, sodium impurity analysis and cover gas monitors. Results of recent demonstration tests of the FFTF Under-Sodium Viewing and Ranging system are also presented.
Date: December 1, 1975
Creator: Day, C.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Concrete-polymer materials for geothermal applications. Progress report No. 7, October--December 1975

Description: The availability of durable and economic materials of construction for handling hot brine and steam is a serious problem in the development of geothermal energy. The standard grouting materials used to cement well casings into the ground are severely attacked by brine and steam at temperatures >200/sup 0/C. Progress in the research program to determine if concrete--polymer composite materials can be utilized in geothermal power systems, initiated in April 1974, is reported. (WHK)
Date: December 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary measurements of the thermal conductivity of rocks from LASL geothermal test holes GT-1 and GT-2

Description: The conductivities on a number of dry rocks have been measured in an air environment. These experimental values are probably about 10 percent lower than the in situ values. Initial attempts to prepare ''wet'' rock samples (rocks saturated with water) have so far resulted in only ''damp'' rocks. Considerable effort will be required to characterize the crack system in ''solid'' rocks and to predict the probable conductivity values for in situ conditions.
Date: December 1, 1975
Creator: Sibbitt, W. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Synthesis and characterization of metal--metal bonded dimers of tantalum and tungsten

Description: A search for innovative synthetic routes to new metal-metal bonded metal-halide clusters resulted in isolation of two completely independent dimeric species. The syntheses and characterizations of Ta/sub 2/X/sub 6/(SC/sub 4/H/sub 8/)/sub 3/ (X = Cl, Br) and ((n-C/sub 3/H/sub 7/)/sub 4/N)/sub 2/(W/sub 2/Br/sub 9/) followed entirely different experimental routes, yet occasionally similar properties linked the two projects. (auth)
Date: December 1, 1975
Creator: Templeton, J. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Multichannel wave interferometry

Description: The analysis of multichannel wave interferometry for a variety of density profiles reveals that the phase shift as a function of horn position normalized to that through the center of the plasma, is relatively insensitive to K = n/sub o//n/sub c/ (the ratio of maximum density to cutoff density) when refraction effects are minimized. Thus, this ratio may be easily inverted to obtain a reasonably accurate measurement of the density profile even for values of K approaching 1.
Date: December 1, 1975
Creator: Hosea, J. C. & Jobes, F. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, July--September 1975

Description: Twenty-one coal samples have been collected and characterized. Sixty coals have been provided to other agencies at their request. The capability of controlling coal characteristics during preparation is being developed: large variations in volatile content occur within a given raw coal but, by controlling the preparation, a uniform product with the devised specifications can be produced. Studies have begun on the suitability of various coals and cokes for use in pressurized fixed bed gasifiers.… more
Date: December 1, 1975
Creator: Spackman, W.; Davis, A.; Walker, P. L.; Lovell, H. L.; Essenhigh, R. H.; Vastola, F. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Facies of ion bombarded surfaces of brittle materials. [Protons, deuterons, He ions]

Description: Materials were bombarded by protons, deuterons, and helium ions. The materials investigated were quartz; glasses; carbides and borides (SiC, B/sub 4/C, TiB/sub 2/); oxides and nitrides (magnorite, sapphire, spinel, Al/sub 2/O/sub 3/, Si/sub 3/N/sub 4/, ZrO/sub 2/, BaTiO/sub 3/); and miscellaneous (graphite, LiNbO/sub 3/, copper). Oberservations were of growth, reflectivity, blistering, surface ablation, and swelling. Calculations were made of the effects of a layer, of its gradual transformatio… more
Date: December 1, 1975
Creator: Primak, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat-treatment, microstructure and mechanical properties of experimental high strength Fe--4Cr--0. 4C steels

Description: The treatments involve high temperature (1100/sup 0/C) austenitizing during the first solution treatment followed by either interrupted quenching (Ms-Mf range) or isothermal transformation to produce lower bainite. Finally, the steels are given a 900/sup 0/C grain refinement treatment. Lower bainite was obtained by isothermally transforming austenite just above the Ms temperature. Tempering after the martensitic and bainitic treatments was also done in an attempt to improve the toughness of the… more
Date: December 1, 1975
Creator: Narasimha Rao, B. V.; Miller, R. W. & Thomas, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Neutron spectra from 647- and 800-MeV proton bombardment of hydrogen and deuterium. [Cross sections]

Description: Zero degree neutron spectra for the inclusive reactions p(p,n) and d(p,n) were obtained. Spectra were obtained for bombarding proton kinetic energies of 647 and 800 MeV. The strongly peaked p(p,n) spectra are well explained via the p(p,n)p..pi../sup +/ reaction primarily through the production of the N*/sub 33/(..delta../sup + +/) resonance. However, there is evidence for n-p final state interactions as well. Calculations have shown the roles of the N*/sub 33/ resonance and the n-p final state … more
Date: December 1, 1975
Creator: Bjork, C. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Direct contact heat transfer between two immiscible liquids in laminar flow between parallel plates

Description: The search for new sources of energy has prompted studies concerned with extracting energy from low temperature geothermal reservoirs which may include investigations into direct contact heat transfer due to the caustic nature of the geothermal brine. The heat transfer between two liquids of constant properties in laminar stable flow between infinite insulated horizontal parallel plates was studied. The formulation of the general problem involves two energy equations, one for each layer, which … more
Date: December 1, 1975
Creator: Johnson, R. W.; Jacobs, H. R. & Boehm, R. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laser irradiation of thin plastic targets with a 10. 6. mu. m CO/sub 2/ laser

Description: Polyethylene foils and parylene disks 5 to 10 ..mu..m thick have been irradiated by CO/sub 2/ laser pulses focused to flux levels in the 10/sup 13/ to 10/sup 14/ W/cm/sup 2/ range. The facility and the results obtained on these experiments are compared to similar targets hit with 1.06 ..mu.. pulses of like intensity. A CO/sub 2/ laser system, ''Valkyrie,'' fabricated from commercially available components was assembled for these experiments.
Date: December 1, 1975
Creator: Manes, K. R.; Haas, R. A.; Rupert, V. C. & Boyle, M. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Geothermal R and D project report, July 1, 1975--September 30, 1975. [Freon 113]

Description: The Idaho National Engineering Laboratory (INEL) Geothermal Research and Development Project is conducting two major geothermal development efforts: (1) a project aimed at medium temperature (approximately 300/sup 0/F) utilization to produce electricity with supplemental direct thermal use of the energy and (2) a low temperature (approximately 170/sup 0/F) space heating project. The first effort has progressed in the field to the successful drilling of two deep geothermal wells providing flows … more
Date: December 1, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Users manual for 0S910, the SDS-910 operating system. [For SDS-910--PDP-15 computer network]

Description: This document is designed for the users of the OS910 real-time operating system for the SDS-910--PDP-15 computer network. It describes what information the user must provide to the system for successful operation. Included is a description of all programed operators (POPS) that will be of use to the user. 2 tables (auth)
Date: December 1, 1975
Creator: Moon, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Set of thermal neutron-scattering experiments for the Weapons Neutron Research Facility

Description: Six classes of experiments form the base of a program of thermal neutron scattering at the Weapons Neutron Research (WNR) Facility. Three classes are to determine the average microscopic positions of atoms in materials and three are to determine the microscopic vibrations of these atoms. The first three classes concern (a) powder sample neutron diffraction, (b) small angle scattering, and (c) single crystal Laue diffraction. The second three concern (d) small kappa inelastic scattering, (e) sca… more
Date: December 1, 1975
Creator: Brugger, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy storage and transfer with homopolar machine for a linear theta-pinch hybrid reactor

Description: This report describes the energy storage and transfer system for the compression coil system of a linear theta-pinch hybrid reactor (LTPHR). High efficiency and low cost are the principal requirements for the energy storage and transfer of 25 MJ/m or 25 GJ for a 1-km LTPHR. The circuit efficiency must be approximately 90 percent, and the cost for the circuit 5 to 6 cents/J. Scaling laws and simple relationships between circuit efficiency and cost per unit energy as a function of the half cycle … more
Date: December 1, 1975
Creator: Vogel, H. F.; Brennan, M.; Dase, W. G.; Tolk, K. M. & Weldon, W. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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