Water vapor at 6 mpa, 600°c enters a turbine operating at steady state and expands adiabatically to 10 kpa. the mass flow rate is 2 kg/s and the isentropic turbine efficiency is 94.7%. kinetic and potential energy effects are negligible. let t0 = 298 k, p0 = 1 atm. determine a. the power developed by the turbine, in kw. b. the rate at which exergy is destroyed within the turbine, in kw. c. the exergetic turbine efficiency

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?