A power plant operates on a regenerative vapor power cycle withone open feedwater heater. Steam enters the first turbine stagge at12 MPa, 560*C and expands to 1 MPa, where some of the steam isextracted and diverted to the open feedwater heater operating at 1MPa. The remaining steam expands through the second turbine stageto the condenser pressure of 6 kPa. Saturated liquid exits the openfeedwater heater at 1 MPa. The net power output for the cycle is330 MW. For isentropic processes in the turbines and pumps,determine
(a) The cycle thermal efficiency.
(b) The mass flow rate into the first turbine stage, inkg/s.
(c) The rate of entropy production in the open feedwater heater,in kW/K.
