Air enters the compressor of an airpower cycle with a volumetric flow rate of 90 m³/s at 100 bar, 310 K. The compressor pressure ratio is 15, and the maximum cycle temperature is 1900 K. For the compressor, the isentropic efficiency is 80% and for the turbine, the isentropic efficiency is 85%. Determine (a). the net power developed, in MW, (b). the back work ratio, (c). the thermal efficiency of the cycle, and (d) the rate of entropy produced by the compressor and the turbine (Hint the effect of stray heat from the compressor and the turbine are already counted in their efficiency).
(a). The net power developed is ____ MW
(b). The back work ratio, bwr= ____
(c). The thermal efficiency of the cycle, $\eta_t$= ____ % (4 points)
(d) The rate of entropy produced by the compressor and the turbine is ____ kW/K
