Efficiency of Geothermal Power Plant Cycles with Different Heat-Carriers
- Key words
- Power plants, cycle arrangements, subcritical and supercritical parameters.
- Conference
- Stanford Geothermal Workshop
- Year
- 2016
- Session
- Low Temperature
- Language
- English
- Paper number
- Redko
Full text
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Abstract
Results of numerical studies of the effectiveness of the thermal scheme of geothermal power plant are presented. Subcritical and supercritical Rankine cycles with different working mediums both pure substances and their mixtures in the temperature range of 70÷200°C are studied. The effect of operating parameters: temperature and vapor pressure in front of and behind the turbine, heat exchange efficiency in the evaporator and condenser and ambient temperature has been found. The dependence of electrical power being generated on the geothermal fluid temperature is defined. The analysis of exergy efficiency of the power plant has been done.
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