Optimization of Working Fluids for Low Temperature Geothermal Water Power Generation Based on Organic Rankine Cycles

HU Haoran; WU Lijun; ZHANG Lihua

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Electric Power Construction ›› 2013, Vol. 34 ›› Issue (5) : 44-48.

Optimization of Working Fluids for Low Temperature Geothermal Water Power Generation Based on Organic Rankine Cycles

HU Haoran, WU Lijun, ZHANG Lihua

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Abstract

Organic Rankine Cycle (ORC) is one of the important ways to generate electricity with geothermal resource, and the physical property of organic working fluid is the main factor that influences the efficiency of ORC power generation. According to the characteristics of geothermal water, 6 kinds of organic working fluids, such as R134a and R245fa were selected, and the waste heat power generation system with each selected fluids were calculated repectively. Through the comprehensive analysis of system’s thermal efficiency, irreversible loss, pressure level and environmental protection, R245fa is found suitable organic working fluid for ORC power generation system with low temperature geothermal water.

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geothermal power generation / organic rankine cycle (ORC) / working fluids / low temperature geothermal water

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HU Haoran, WU Lijun, ZHANG Lihua. Optimization of Working Fluids for Low Temperature Geothermal Water Power Generation Based on Organic Rankine Cycles[J]. Electric Power Construction. 2013, 34(5): 44-48

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