A DOE-Funded Design Study for Pioneer Baseload Application Of an Advanced Geothermal binary Cycle at a Utility Plant in Western Utah

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Conference Paper: A DOE-Funded Design Study for Pioneer Baseload Application Of an Advanced Geothermal binary Cycle at a Utility Plant in Western Utah

Abstract
Funded in 2000 by an R&D grant from the U.S. Departmentof Energy (DOE), POWER performed a conceptual design andpilot testing effort to determine the feasibility of applying anadvanced high-efficiency binary heat recovery cycle - the KalinaCycleTM - to recover energy from 171' C silica-rich geothermalbrine being injected from an existing geothermal powerplant tapping Roosevelt Hot Springs in Utah�s remote westerndesert. A crucial issue in the work was the suitability of pHmodification (acid injection) treatment to prevent or delay destructivesilica precipitation in the power cycle components anddownstream injection lines. The work also included an updatingof the computer model of the Roosevelt Hot Springs undergroundreservoir, to verify that it could sustainably support additionalpower generation. The study confirmed the suitabilityof the Kalina Cycle and pH modification for application to abottoming cycle at the site, which will be a pioneer utility-scaleapplication of a fresh and conspicuously efficient binary heatrecovery technology to a significant resource - a 171' C [340"F] reject stream being reinjected into the reservoir - that is nowessentially wasted because of historic fear of complications dueto silica scaling.

Authors 
W.E. Lewis and M. Ralph






Conference 
GRC Annual Meeting; Reno, Nevada; 2002/09/22


Published 
Geothermal Resources Council, 2002





DOI 
Not Provided
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Online 
Internet link for A DOE-Funded Design Study for Pioneer Baseload Application Of an Advanced Geothermal binary Cycle at a Utility Plant in Western Utah

Citation

W.E. Lewis, M. Ralph. 2002. A DOE-Funded Design Study for Pioneer Baseload Application Of an Advanced Geothermal binary Cycle at a Utility Plant in Western Utah. In: GRC Transactions. GRC Annual Meeting; 2002/09/22; Reno, Nevada. Davis, California: Geothermal Resources Council; p. 695-699