Air expands through a turbine operating at steady state. At the inlet, p₁= 150 lbf/in², T₁= 1400°R, and at the exit, p₂= 14.8 lbf/in², T2 = 900°R. The mass flow rate of air entering the turbine is 11 lb/s, and 65,000 Btu/h of energy is rejected by heat transfer.
Neglecting kinetic and potential energy effects, determine the power developed, in hp.