Steam enters the turbine of a simple vapor power plant at 100 bar, 520°C and expands adiabatically, exiting at 0.08 bar with a quality of 90%. Condensate leaves the condenser as saturated liquid at 0.08 bar. Liquid exits the pump at 100 bar, 43°C. The specific exergy of the fuel entering the combustor unit of the steam generator is estimated to be 14,700 kJ/kg. No exergy is carried in by the combustion air.
The exergy of the stack gases leaving the steam generator is estimated to be 150 kJ per kg of fuel. The mass flow rate of the steam is 3.92 kg per kg of fuel. Cooling water enters the condenser at T0 = 20°C, p0 = 1 atm and exits at 35°C, 1 atm. Develop a full accounting of the exergy entering the plant with the fuel.