Steam exits a boiler and enters a turbine at 200. psia, 600.°F with a mass flow rate of 30.0 × 103 lbm/h. It exits the turbine at 1.00 psia and is condensed. The condensate then reenters the boiler as a saturated liquid at 90.0°F. The turbine drives an electrical generator that delivers a net 3000. kW of power. Determine
a. The Rankine cycle actual thermal efficiency of the entire system.
b. The isentropic efficiency of the combined turbine-generator unit.