Repeat Problem, but consider the turbine isentropic efficiency to be 0.80 and the pump isentropic efficiency to be 0.70.
Problem
A Rankine cycle with superheat and reheat has steam entering the turbine at 18 MPa and 600°C. The steam is extracted and sent to the reheater and returns to the turbine at 600°C. The condenser pressure is 20 kPa. The turbine and pump are isentropic. The mass flow rate of the steam is 150 kg/s. Plot the net power produced, the exit quality (or temperature) from the turbine, and the thermal efficiency of the cycle for reheat pressures ranging from 500 kPa to 10 MPa.
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