Turbine isentropic efficiency – Samarth Mittal

Isentropic efficiency of the turbine is defined as the ratio of the actual work output of the turbine to the work output of the turbine if the turbine undergoes an isentropic process between the same inlet and exit pressures.

It is defined normally in terms of temperature as:

Primes( ‘ ) will be attached to symbols to denote an ideal state.