In this study, the optimum flash and evaporation temperatures have been selected for the following four geothermal power generation systems: single-flash system (SF), double-flash system (DF), flash-ORC system (FORC), and double-flash-ORC system (DFORC). The maximum net electricity generated is regarded as an objective function, with the pump and fan consumptions being taken into account. Under the given geofluid’s condition (T= 170℃; x= 0.2), the optimum flash temperature of SF, the optimum 2nd-stage flash temperature of DF, the optimum evaporation temperatures of FORC and DFORC are found to be 150℃, 100℃, 100℃, and 70℃, respectively. More geofluid’s conditions (T= 80~260 ℃ ; x= 0, 0.2, 0.4) have also been considered for the temperature optimization of each system. The optimization results are shown in Fig.4 which can be useful for engineering application.
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[v1] 2018-02-22 05:52:49
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