5-140 A steam turbine operates with 1.6 MPa and 350°C steam at its inlet and saturated vapor at 30°C at its exit. The mass flow rate of the steam is 22 kg/s, and the turbine pro- duces 12,350 kW of power. Determine the rate at which heat is lost through the casing of this turbine. 1.6 MPa 350°C 22 kg/s Turbine Heat 30°C sat. vapor FIGURE P5-140