You are designing a gas turbine to be used in a new power station. Your design is shown in the schematic below.
Determine the total entropy generation and the second law efficiency of the turbine.
Treat the gas as air and assume that it behaves as an ideal gas. Do not assume constant specific heats.
(1) Air (ideal gas) T=800K P=1MPa m = 20kg/s
(0) Surroundings To=25°C Po = 1atm
Turbine
Power out Wme =??
Heat out Qturb=3MW
(2) Air (ideal gas) T=340K P=200kPa