Abstract
Abstract This paper presents an analysis of organic Rankine cycle (ORC) using hydrofluoroethers including HFE7000, HFE7100 and HFE7500 as working fluids under constant external conditions. A computer program has been developed to parametrically compare the first and second law efficiencies, power output, turbine size factor with increase in turbine entry temperature. The results show that HFE7000 produces the maximum thermodynamic efficiencies and performs better in view of the net power output under the given working conditions. Moreover, HFE7000 has the lowest turbine size factor comparing with HFE7100 and HFE7500. Therefore, HFE7000 can be recommended to be used as working fluid in ORC to convert low-grade heat into power.
Published Version
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