An irreversible, steady state, steady flow steam turbine that has no thermal insulation has an isothermal surface temperature of 100.°F. It operates with a steam mass flow rate of 15.0 lbm/s. The turbine inlet is at 300. psia, 1200.°F, and the exit is at 14.7 psia, 300.°F.
If the turbine's entropy production rate is 0.500 Btu/(s · R), then determine
a. The turbine's heat transfer rate.
b. The turbine's work rate (power).