Development of turbine driven centrifugal compressors for non-condensible gas removal at geothermal power plants. Final report | Zendy

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Development of turbine driven centrifugal compressors for non-condensible gas removal at geothermal power plants. Final report

Publication year - 1997

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/570103

Subject(s) - gas compressor , centrifugal compressor , injector , inlet , gas turbines , petroleum engineering , nuclear engineering , geothermal gradient , environmental science , jet (fluid) , turbine , mechanics , mechanical engineering , engineering , physics , geophysics

Initial field tests have been completed for a Non-Condensible Gas (NCG) turbocompressor for geothermal power plants. It provides alternate technology to steam-jet ejectors and liquid-ring vacuum pumps that are currently used for NCG removal. It incorporates a number of innovative design features to enhance reliability, reduce steam consumption and reduce O&M costs. During initial field tests, the turbocompressor has been on-line for more than 4500 hours as a third stage compressor at The Geysers Unit 11 Power Plant. Test data indicates its overall efficiency is about 25% higher than a liquid-ring vacuum pump, and 250% higher than a steam-jet ejector when operating with compressor inlet pressures of 12.2 in-Hga and flow rates over 20,000 lbm/hr

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