Exergy Analysis of a Double-Stage Organic Rankine Cycle Using Renewable Energy

İngilizce (OpenAlex)

Engineering Equation Solver program (EES). For certain temperature limits in the first and second stages (S-I and S-II) R245fa + R245fa was used as refrigerant pair. This study aims to determine the effect of working temperature on system efficiency, exergy efficiency and the most suitable working temperature. The results showed that at 425K, 14.11kW exergy destruction is obtained in Pump-1 higher than other components. The smallest exergy destruction is 0.133kW is observed in Turbine-2 at 400K temperature. The highest thermal and exergy efficiencies of the whole system were obtained at 400K temperature as 8.85% and 48.55%, respectively.