Air flows steadily at the rate of 1 kg/s through an air compressor at 10 m/s, 100 kPa and 1 m3/kg and leaving at 6 m/s, 800 kPa and 0.2 m3/kg. The internal energy of the air leaving is 100 kJ/kg greater than the air entering. Cooling water in the compressor jacket absorbs heat from air at the rate of 100 kW. Find the rate of work done.

Air flows steadily at the rate of 1 kg/s through an air compressor at

1.	Air flows steadily at the rate of 1 kg/s through an air compressor at 10 m/s, 100 kPa and 1 m3/kg and leaving at 6 m/s, 800 kPa and 0.2 m3/kg. The internal energy of the air leaving is 100 kJ/kg greater than the air entering. Cooling water in the compressor jacket absorbs heat from air at the rate of 100 kW. Find the rate of work done.
A.	260 kW
B.	480 kW
C.	320 kW
D.	540 kW
Answer» B. 480 kW

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