Consider a combined gas-steam power plant that has a net output of 423 MW. The pressure ratio of the gas-turbine cycle i
Posted: Fri Jul 01, 2022 6:51 am
Consider a combined gas-steam power plant that has a net output of 423 MW. The pressure ratio of the gas-turbinecycle is 10.8. Air enters the compressor at 300K and the turbine at 1211K. The combustion gases leaving the gas turbineare used to heat the water to saturated vaporin a heat exchanger. The combustion gases leave the heat exchangerat 420K. The steam enters the steam turbine at 5 barand 400oC. The condenser pressure is 10 kPa. Assuming isentropic efficiencies of 100% for the pump, 93% for the compressor, and 77% for the gas and steam turbines, determine: