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Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications

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Title:Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications
Authors:Thomas, Donald M.
Keywords:Hawaii Island
geothermal power plants
well monitoring
Hawaii Geothermal Project
brine
show 7 moregeochemistry
steam
chemical analysis
Hawaii
Big Island
Puna
Kilauea
show less
LC Subject Headings:Geothermal resources--Hawaii
Geothermal resources--Periodicals
Geothermal engineering--Periodicals
Geothermal power plants--Periodicals
Renewable energy sources--Oceania--Periodicals
show 7 morePower resources--Oceania--Periodicals
Energy conservation--Oceania--Periodicals
Transactions (Geothermal Resources Council)
Hydrogen sulfide--Environmental aspects--Hawaii--Puna
Geothermal power plants--Environmental aspects--Hawaii--Puna Region
Geothermal resources--Environmental aspects--Hawaii--Puna Region
Air quality--Hawaii
show less
Date Issued:Oct 1982
Publisher:Geothermal Resources Council
Citation:Thomas DM. 1982. Process chemistry monitoring at the HGP-A power plant : analytical results, process problems and modifications. Transactions: vol. 6, October 1982, 401-404. Davis (CA): Geothermal Resources Council.
Series:Transactions (Geothermal Resources Council)
Abstract:"The HGP-A generator plant began operations on June 12, 1981 and came online on a continuous bases on March 1, 1982. During this period process problems were identified and, in most cases, plant modifications have eliminated the difficulties. Silica in the brine was stable at a pH 7.5, however, at a pH above 9.5 deposition of silica was triggered in a brine disposal system and required abandonment of the hydrogen sulfide abatement process originally proposed of the brine system. The steam phase sulfide abatement system for standby conditions was 90% effective, although superheat in the treatment system reduced abatement efficiency. Brie carryover through the separator was very low; however, scale deposition on the turbine blades resulted in substantial damage to the turbine. Non-condensable gases in the condenser were weakly partitioned into the liquid phase, and about 99% were carried into the off gas treatment system which was found to be approximately 99% effective."
Author's affiliation: Hawaii Institute of Geophysics, University of Hawaii at Manoa
Pages/Duration:5 pages
URI:http://hdl.handle.net/10524/47992
Appears in Collections: The Geothermal Collection


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