$10-22$ A simple Rankine cycle uses water as the working fluid. The boiler operates at $6000$ kPa and the condenser at $50$ kPa $.$ At the entrance to the turbine, the temperature is $450C.$ The isentropic efficiency of the turbine is $94$ percent, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by $6\mathrm{.}3C.$ The boiler is sized for a mass flow rate of $20k\frac{g}{s}.$ Determine the rate at which heat is added in the boiler, the power required to operate the pumps, the net power produced by the cycle, and the thermal efficiency. Answers: $59,660$ kW$,122$ kW$,18,050$ kW$,30\mathrm{.}3$ percent.