Asimple rankine cycle operates with water as the working fluid between the pressures of 4 mpa and 20 kpa. the fluid leaves the boiler at 550°c, the turbine efficiency is 89% and the fluid exits the condenser as saturated liquid. the flow rate is 81.5 kg/s and the pump efficiency is 52%. determine: a)- the net power output, in kw. b)- the rate of heat input in the boiler, in kw. c)- the rate of heat rejection in the condenser, in kw. d)- the overall efficiency of the bankine cycle engine.