A Rankine cycle with superheat, using water as the working fluid, has a turbine with an isentropic efficiency of 0.75 and a pump with an isentropic efficiency of 0.65. Superheated water vapor enters the turbine at a pressure of 20 MPa. The condenser pressure is 10 kPa. The net power produced by the cycle is 750 MW. Plot the required mass flow rate of the steam, the exit quality (and temperature) of the water leaving the turbine, and the thermal efficiency of the cycle for turbine inlet temperatures ranging between 400°C and 600°C.
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