Exergetical Performance Assessment of Organic Rankine Cycle with Superheating

摘要

Organic Rankine Cycle (ORC) has attracted much attention in recent years, since it has potential of reducing fossil fuel consumption and many favorable characteristics to exploit low-grade energy sources. This work carries out an exergetical performance assessment of ORC with superheating comparatively for various organic fluids. Special attention is paid to the effect of evaporating temperature on the exergy destructions (anergies) at various system components and the exergy efficiency of system. Results show that for a given source both the anergies at the components and exergy efficiency may have a peak value or monotonically increase with evaporating temperature.