12. A turbine with one extraction for regenerative feedwa- ter heating, receives steam with an enthalpy of 3373 kJ/kg and discharges it with an exhaust enthalpy of 2326 kJ/kg. The ideal regenerative feedwater heater receives 11,338 kg/h of extracted steam at 345 kPa (whose h = 2745 kJ/kg). The feedwater (condensate from the condenser) enters the heater with an enthalpy of 140 kJ/kg and departs saturated at 345 kPa (h, = 582 kJ/kg). Calculate the turbine output in kW. Ans. 18,116 kW