Steam enters a turbine at 3MPa and 500oC at a rate of 6kg/s and a velocity of 150m/s and an elevation of 2m. The steam exits at 0.3MPa, 160oC, 80m/s, and 0.5m. The steam is losing heat to the surroundings at a rate of 300kW. The surface temperature of the turbine is 300 oC.

a) Determine the power output of the turbine. (solution)

b) Do an accounting of exergy for the steam turbine.