Guidelines for optimal selection of working fluid for an organic Rankine cycle in relation to waste heat recovery

摘要

General guidelines on how to choose the optimal working fluid based on the hot source temperature available are reported. Based on a systematic approach, 26 commonly used working fluids are investigated by optimisations at hot source temperatures in the range 50-280 degrees C at intervals of 5 K. The genetic optimisation algorithm is used to optimise net power output by an optimal combination of turbine inlet pressure and temperature, condenser pressure, hot fluid outlet temperature, and mixture composition for mixtures.