Air enters the compressor of a gas turbine at 100 kPa, 300 K. The air is compressed in two stages to 900 kPa, with intercooling to 300 K between the stages at a pressure of 300 kPa. The turbine inlet temperature is 1480 K and the expansion occurs in two stages, with reheat to 1420 K between the stages at a pressure of 300 kPa. The compressor and turbine stage efficiencies are 84 and 82%, respectively. The regenerator effectiveness is 75%. The net power developed is 1.8 MW. Use a cold air-standard analysis to determine: a.) The volumetric flow rate, in m3/s, at the inlet of each compressor stage.
[4.11 m3/s, 1.37 m3/s]
b.) The thermal efficiency of the cycle.
c.) The back work ratio. [0.411]