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Evaluation of selected drive components for a flywheel powered commuter vehicle. Phase I. Final report

Description: The results of tests performed to evaluate the performance of selected high-speed flywheel bearings and shaft seals are reported, and work performed on the development of a high-speed composite flywheel rotor is described. The overall program objective is to develop a composite flywheel system for primary energy storage in a flywheel powered vehicle. These initial tests were intended to evaluate the performance of full-size composite rotor elements, high-speed bearings and shaft seals for that … more
Date: June 30, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid metal bearings technology for large, high-temperature, sodium rotating machinery. Development and test of high-temperature proximity probe for use in liquid sodium. Fourth topical report

Description: An inductance-type, proximity-probe system for measurement of bearing film thicknesses and shaft orbits in high-temperature, liquid-sodium environment has been developed, built and tested. The probe system is designed to operate at temperatures up to 1200/sup 0/F and gap range of 0.004'' to 0.080'', with good linearity over about three-quarters of the range, when using probe pairs connected in push-pull. The probes were tested extensively in both gas and sodium environments, culminating in a 68… more
Date: June 1, 1971
Creator: Hoogenboom, I. & Kissinger, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid Metal Engineering Center (LMEC) annual technical progress report, January-December 1975

Description: During operation of the prototype FFTF sodium pump, it is necessary to know the position of the pump shaft relative to the sodium-lubricated hydrostatic bearing journals. Performance of the Kaman proximity measurement system was known to be affected by the type of media between the gap to be measured. Since Kaman Sciences Corp. did not have liquid sodium testing capabilities, LMEC was requested to evaluate a spare prototype system. Determination of the sodium performance characteristics of the … more
Date: April 30, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal drilling and completion technology development program. Semi-annual progress report, October 1978-March 1979

Description: The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drill bits, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.
Date: September 1, 1979
Creator: Varnado, S.G. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ISOLEUCYL-tRNA-SYNTHETASE A FLUORESCENCE STUDY OP THE BINDINGPROPERTIES OF THE SYNTHETASE FROM ESCHERICHIA COLI

Description: Fluorescence properties of purified isoleucyl-tRNA-synthetase isolated from E. coli B have been studied. No changes in the quantum yield, energy or polarization of the emission were detected in the presence (either individually or in combinations) of the substrates and cofactors required for activation of L-isoleucine. In 2.5 M urea enzyme activity and intrinsic fluorescence intensity (at 340 nm) each decrease with time, showing similar kinetics and rate constants. The rate of this decay is red… more
Date: November 1, 1970
Creator: Penzer, Geoffrey R.; Bennett, Edward L. & Calvin, Melvin.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proven reliability of the gas-turbine engine. BIPS Phase 1

Description: The background, capabilities and experience of the Garrett Corp. in designing, developing, manufacturing and testing gas turbines and related systems are described, and the requirements for and components of the Brayton Isotope Power System (BIPS) for space vehicles are outlined. Data on the compressor and turbine, alternator, bearings, recuperator, radiator, heat source assembly, and control systems are presented. (LCL)
Date: November 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MINI-BRU bearing development summary, 1 January 1978-5 April 1978

Description: Progress in developing foil bearings for a miniature isotope-fueled Brayton cycle power system rotating unit (BRU) for space vehicles is reviewed with charts, tables, and diagrams of the program plan and schedule; performance testing; fabrication and inspection; and materials development. (LCL)
Date: April 12, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of high temperature lubricants for downhole motors in geothermal applications

Description: A Bearing-Seal Package is being developed for use with downhole motors and turbines for drilling geothermal wells. The lubricant will be sealed in the bearing section which will allow the bearings to operate directly in the lubricant. The development of the Bearing-Seal Package involves the improvement of high temperature seals and lubricants. Candidate high temperature lubricants were tested in the High Temperature Lubricant Tester under elevated temperatures and pressures. A list of candidate… more
Date: January 1, 1979
Creator: DeLafosse, P.H.; Tibbitts, G.A. & Green, S.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Preliminary report on the Pacific Gas and Electric Company's notice of intention to seek certification for Geysers Unit 16 (78-NOI-6)

Description: The preliminary findings of fact and conclusion adopted by the Commission Committee are presented. Also, a description of the proposed project, a summary of the proceedings to date, and local, state, and federal government agency comments on the proposal are included. Preliminary findings and conclusions are presented on: (a) conformity to the forecast of statewide and service area electric power demands; (b) the degree to which the proposed site and facility conform with applicable local, regi… more
Date: January 1, 1979
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Improvements in rotary seals for downhole motors in geothermal applications

Description: The major limitation of downhole mud motors for geothermal well drilling as well as straighthole and oil well drilling is the bearing section. Reduced bearing life has been a direct result of the inability to seal lubricant in the bearing section. A reliable rotary seal is needed to extend bearing life and to allow high pressure drops across the drill bit for improved bottomhole cleaning and increased drilling rate. The endurance of high temperature rotary seal candidates is being measured in a… more
Date: January 1, 1979
Creator: Wilson, J.G.; Tibbitts, G.A. & Black, A.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reactor cover system improvements. Final report FY 1978. [Seal, bearing, support, deck, vessel support]

Description: The effort in the reactor cover study area resulted in design recommendations for the vessel support, the deck, and the bearing and seals. Sixteen configurations of bearings and seals were examined as part of this study. The selected concepts use a double inflatable seal plus a sodium dip seal. Six different deck configurations were considered as part of this study. The most attractive of these concepts is the conical deck. Five different vessel support concepts were considered. Of these, the U… more
Date: January 1, 1978
Creator: McEdwards, J.A. & Matteras, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrodynamic air lubricated compliant surface bearing for an automotive gas turbine engine. II. Materials and coatings

Description: Part III of a technology program performed for the NASA Lewis Research Center for the development of hydrodynamic air lubricated journal bearings for an automotive gas turbine engine is described. Part I of the program had focused on advancing compliant surface journal bearing technology by providing design information through an experimental and analytical effort. Part II of the program has investigated and tested materials and coatings for compliant surface bearings and journals good to eithe… more
Date: July 1, 1978
Creator: Bhushan, B.; Ruscitto, D. & Gray, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal Well Technology Program

Description: The high cost of drilling and completing geothermal wells is an impediment to the development of geothermal energy resources. Technological deficiencies in rotary drilling techniques are evidenced when drilling geothermal wells. The Division of Geothermal Energy (DGE) of the U.S. Department of Energy has initiated a program aimed at developing new drilling and completion techniques for geothermal wells. The goals of this program are to reduce well costs by 25% by 1982 and by 50% by 1986. An ove… more
Date: January 1, 1978
Creator: Varnado, S. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Annual report on the project to design and experimentally test an improved geothermal drill bit

Description: Progress is reported in a research and development program to design, build, and test an improved geothermal drill bit. The major tasks of the Phase I effort are entitled: failure mechanisms of existing bits; new steels and new bearing design; and new seals and lubricants. It appears that a significant gain in drill-bit life can be attained by the use of higher-temperature steels which retain more hardness at temperatures above 260/sup 0/C (500/sup 0/F). Such steels are available, and two resea… more
Date: June 1, 1976
Creator: Barker, L. M.; Green, S. J.; Maurer, W. C. & DeVries, L. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of particulate material extracted from a large sodium loop

Description: The particulate material entrained in the sodium of the Westinghouse ARD's General Purpose Sodium Loop No. 2 (GPL-2) was evaluated as part of the Fast Flux Test Facility (FFTF) Pump Bearing Test. The test plan specified a weight fraction concentration of solid particulates in the sodium to be less than 1 part per million (ppM) and an upper size limit on the particle unit of 50 ..mu..m (2 mils). The particulate matter was evaluated because of the potential enhancement of wear on the pump bearing… more
Date: January 1, 1976
Creator: Padden, T. R.; Meacham, S. A. & Brandt, H. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program. Eleventh Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. NASA completed initial heat balance testing of a baseline engine. An additional 450 hours were run on ceramic regenerators and seals. Seal wea… more
Date: July 31, 1975
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid metal bearing technology for large, high-temperature, sodium rotating machinery. Third topical report design data handbook for externally pressurized journal bearings including turbulence and inertia effects

Description: Design data for a Deep Pocket Hydrostatic Journal Bearing is presented. A wide range of possible operating conditions in the turbulent regime is examined. Both pressure flow induced turbulence and Bernoulli type inertia effects are accounted for in the generation of this data. Design data is presented for two bearing configurations, one selected for good stiffness characteristics, and the other with good balance between flow and stiffness. Tables of data are presented which provide load, flow, … more
Date: January 1, 1971
Creator: Smalley, A. J.; Geren, B. F. & Arwas, E. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program. Fourteenth Quarterly Progress Report

Description: Progress is reported for a Baseline Gas Turbine Development Program sponsored by the Heat Engine Systems Branch, Division of Transportation Energy Conservation (TEC) of the Energy Research and Development Administration (ERDA). Structurally, this program is made up of three parts: (1) documentation of the existing automotive gas turbine state-of-the-art; (2) conduction of an extensive component improvement program; and (3) utilization of the improvements in the design, and building of an Upgrad… more
Date: April 30, 1976
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program Seventh Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1976 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. All of the baseline vehicles are now operational and are performing Program tests. Vehicle tests completed in this quarter include noise reduc… more
Date: July 30, 1974
Creator: Schmidt, F. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program. Seventeenth Quarterly Progress Report

Description: Progress is reported for a program whose goals are to demonstrate an experimental upgraded gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, compact-size American automobile. Initial running of the upgraded engine took place on July 13, 1976. The engine has proved to be mechanically sound, but has al… more
Date: January 31, 1977
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Workshop on Electrical Methods in Geothermal Exploration

Description: The objectives of the workshop are: (1) to disseminate case histories of the application of electrical methods in the geothermal environment; (2) to disseminate information from theoretical and field studies bearing on the relative merits of the reconnaissance electrical methods such as MT/AMT, Tellurics, Bipole-dipole, and self-potential; (3) to disseminate information from theoretical and field studies bearing on the relative merits of the detailed electrical methods such as downhole-to-surfa… more
Date: January 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Monroe, Utah, Hydrothermal System: Results from Drilling of Test Wells MC1 and MC2

Description: Following detailed geological (Parry et al., 1976; Miller, 1976) and geophysical (Mase, Chapman, and Ward, 1978; Kilty, Mase, and Chapman, 1978) studies of the Monroe, Utah hydrothermal system, a program of drilling two intermediate depth test wells was undertaken. The objectives of the test well drilling were three-fold: (1) to obtain structural information bearing on the poorly known dip of the Sevier Fault, (2) to obtain temperature information below the shallow depths (approximately 300 ft.… more
Date: October 1, 1978
Creator: Chapman, D. S. & Harrison, Roger
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geochemical considerations for Hot, Dry Rock Systems

Description: Circulating systems intended to model the P-T conditions found in the natural HDR (Hot Dry Rock) geothermal system at Los Alamos have been built. Experiments with these systems have determined the following parameters for the ''down hole'' reservoir: sample weight loss, circulating solution composition, textural changes in the rock, mineral loss from the rock and effects of chemical additives on rock erosion. The analyses of solutions generated from rock-water interactions in the experimental s… more
Date: January 1, 1976
Creator: Balagna, J.; Blatz, L.; Charles, R.; Feber, R.; Herrick, C.; Holley, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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