compressor draws in 0.25 m3/s of air whose density is 1.26 kg/m3 and discharges it density of 4.87 kg/m3. At the suction, P1 = 103.4 kPaa; at the discharge, P2 = 551.4 kPaa. The increase in the specific internal energy is 78.63 kJ/kg, and the heat from the air by cooling is 30.24 kJ/kg. Neglecting changes of potential and kinetic energy, determine the work on air in kW, BTU/min, and Hp.

A compressor draws in 0.25 m3/s of air whose density is 1.26 kg/m3 and discharges it density of 4.87 kg/m3. At the suction, P1 = 103.4 kPaa; at the discharge, P2 = 551.4 kPaa. The increase in the specific internal energy is 78.63 kJ/kg, and the heat from the air by cooling is 30.24 kJ/kg. Neglecting changes of potential and kinetic energy, determine the work on air in kW, BTU/min, and Hp.