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Optimization of Non-Condensable Gas Removal System in Geothermal Power Plant

Tajima, Shigeru; Nomura, Mitsuo

Key words
Power Generation; Japan; Tokyo; Turbines; Operating Designs; Steam; Compressors; Condenser; Gas Removal System; Back Pressure Turbine; Economics
Conference
Geothermal Resources Council Transactions
Year
1982
Session
NCG; Economics; Effluent abatement; Power plant design and o
Language
English

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Abstract

Optimization of non-condensable gas (herein after called N.C.G.) removal system in geothermal power station, in a special case that geothermal steam contains large amount of non-condensable gas, is subject to be discussed. Four different alternative N.C.G. removal systems are studies, which are 1) Steam jet gas ejectors, 2) Centrifugal gas compressor; 3) Combined systems of steam ejectors and centrifugal compressors and 4) Back pressure turbine without N.C.G. removal system. This report summarizes the results of a study, and give recommendations as to the most suitable gas removal system, and also as to optimum condenser pressure, in case of large quantity N.C.G. content in geothermal steam.

Copyright 1982, Geothermal Resources Council. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.

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