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open access

Monitoring the chemistry and materials of the Magma Geothermal Binary Cycle Generating Plant

Description: The Magma Binary Cycle Plant at the East Mesa KGRA is the first geothermal generating plant of its kind in the US. In cooperation with the Magma Electric Company, the Pacific Northwest Laboratory conducted a DOE sponsored program at the plant to document the chemistry and materials performance during the first two years of operation. This paper describes the methods used, the instruments and the results.
Date: October 8, 1982
Creator: Shannon, Donald W.
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Rowlett #1]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 37 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Rowlett]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 6:00 p.m.
Duration: 1 minute 54 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: State fair]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 57 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Rowlett #2]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 52 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Preps]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 55 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Political forum]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 6:30 p.m.
Duration: 2 minutes 03 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: White/Clements]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 6:00 p.m.
Duration: 1 minute 48 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Fair opens]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 5:00 p.m.
Duration: 1 minute 32 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Downtown party]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 1 minute 09 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Death row promo]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 6:00 p.m.
Duration: 43 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Unemployment]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 6:00 p.m.
Duration: 1 minute 37 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Jaguar]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 8, 1982, 10:00 p.m.
Duration: 1 minute 08 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Pitfalls of elastomer compatibility testing

Description: An extensive compatibility test program was conducted starting with 34 compounds and six 190 C fluids. Both immersion tests and simulation tests were conducted for time periods ranging from 46 hours to over six months. Deficiencies in both types of tests were determined. Immersion tests, while useful for reducing the number of candidate compounds, can easily lead to incorrect conclusions. it is essential that simulation tests be conducted before a final elastomer is selected for use in a critic… more
Date: October 8, 1982
Creator: Friese, Gilbert J.
Partner: UNT Libraries Government Documents Department
open access

Corrosion reference for geothermal downhole materials selection: Overview

Description: A consolidated reference of materials for downhole equipment used in geothermal energy exploitation is nearing completion. The reference is a summary of recent developments in the areas of tubular goods materials, highly alloyed metals, high temperature cements, high temperature elastomers, drilling and completion tools, logging tools, and downwell pumps. A brief overview is presented in this paper.
Date: October 8, 1982
Creator: Ellis, Peter F.
Partner: UNT Libraries Government Documents Department
open access

Cathodic protection of carbon steel in simulated geothermal environments

Description: The applicability of cathodic protection to mitigate corrosion of carbon steel in two different environments containing H{sub 2}S has been investigated using impressed current and sacrificial anode techniques. Results of impressed current tests conducted under potential control shows that the weight loss can be reduced significantly by shifting the potential of the metal 60 to 80 mV cathodic to the open circuit potential. The relationship between the applied current and the potential shift show… more
Date: October 8, 1982
Creator: Bandy, R. & van Rooyen, D.
Partner: UNT Libraries Government Documents Department
open access

Calculation of the chemical behavior of highly concentrated geothermal brines

Description: In this report, the authors describe the development of a chemical equilibrium model for hydrothermal waters based on the semiempirical equations of aqueous electrolyte solutions recently introduced by Pitzer and co-workers. Accurate solubility predictions (usually within 5-10% of experimental results) can be made for ionic strengths 0-20m. Comparison with experimental data indicates that a theory parameterized by binary and ternary data can be used to accurately predict solubilities in much mo… more
Date: October 8, 1982
Creator: Moller-Weare, Nancy & Weare, John H.
Partner: UNT Libraries Government Documents Department
open access

Cathodic protection for geothermal wells

Description: A study was conducted to determine the current requirements for cathodic protection of geothermal wells. Oil well technology was applied in this study. Results of laboratory tests and field tests are presented. Attenuation calculations indicate that the cathodic protection current determined from field tests would protect the specific individual geothermal well.
Date: October 8, 1982
Creator: Ohnysty, B.; Slattery, D.G. & Morris, M.
Partner: UNT Libraries Government Documents Department
open access

Design and Fabrication of Polymer Concrete Pipe

Description: Polymer concrete is a composite material which has strength and durability characteristics greatly superior to those of portland cement concrete and better durability in hot brine than steel. polymer concrete has been successfully tested in brine and steam at temperatures up to 260 C. Exposures were as long as 960 days. Glass filament wound polymer concrete pipe was developed with excellent strength, low weight, and a cost comparable to or less than schedule 40 steel. Connections can be made wi… more
Date: October 8, 1982
Creator: Schroeder, J. E. & Abdelgawad, A. T.
Partner: UNT Libraries Government Documents Department
open access

A fabircation report on L'Garde Y267 geothermal compound

Description: A technology transfer was made from L'Garde to Precision Rubber Products for the fabrication of L'Garde geothermal seal compound Y267. Precision Rubber reports their experience as fabricators and gives field reports from three of their customers. Most of the experience has been very successful.
Date: October 8, 1982
Creator: Gillette, Howard
Partner: UNT Libraries Government Documents Department
open access

Summary of geothermal elastomeric materials (GEM) technology transfer

Description: High temperature elastomer technology which significantly advances the state-of-the-art was developed by L'Garde under DOE sponsorship. DOE exercised foresight and sponsored direct transferal of this technology to industry. Consequently, the technology can be readily purchased today from three commercial sources in the form of finished elastomeric parts. This paper provides a summary and conclusion of this effort which transcended important technology from a report gathering dust to three ready… more
Date: October 8, 1982
Creator: Hirasuna, Alan R.
Partner: UNT Libraries Government Documents Department
open access

Elastomers for service in deep well environments

Description: For the last two decades the rubber division of BJ-Hughes, has been in the forefront of rubber technology as applied to products for the oil-well drilling industry. We welcomed the opportunities presented when we were selected to participate in the GEM program and extend our appreciation to L'Garde Inc., Department of Energy and Radian Corporation. Our first efforts, approximately 15 months ago were to duplicate the four compounds recommended by L'Garde and verify our ability to obtain equal ph… more
Date: October 8, 1982
Creator: Logsdon, L. R. & Long, W. C.
Partner: UNT Libraries Government Documents Department
open access

Shutdown corrosion in geothermal energy systems

Description: Experience has shown that corrosion occurring during geothermal energy utilization system downtime--shutdown corrosion--can pose a serious threat to successful operations. Shutdown corrosion in geothermal plants appears more severe than would be expected in their nongeothermal analogs, and its mitigation may pose a severe challenge to corrosion engineering personnel. This paper presents four case histories of geothermal shutdown corrosion problems. General methods of mitigation are explored.
Date: October 8, 1982
Creator: Ellis, Peter F.
Partner: UNT Libraries Government Documents Department
open access

Shape memory alloy seals for geothermal applications

Description: Rockwell International's Energy Systems Group, under contract to Brookhaven National Laboratory, has completed a 2-year program to develop a novel temperature-actuated seal concept for geothermal applications. This seal concept uses the unique properties of a shape memory alloy (Nitinol) to perform the sealing function. The several advantages of the concept are discussed in the paper. Demonstration tests of both face and shaft seals have shown that leaktight seals are feasible. Supporting mater… more
Date: October 8, 1982
Creator: Friske, Warren H. & Schwartzbart, Harry
Partner: UNT Libraries Government Documents Department
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