Air flowing at 20 kg/min enters the insulated compressor of Fig. 4.44 at 100 kPa and 20°C and exits at 800 kPa. The minimum work rate required to compress the air, assuming constant specific heats, is nearest:
(A) 106 hp
(B) 92 hp
(C) 81 hp
(D) 67 hp
Figure 4.44

Transcribed Image Text:

P2 800 kPa P1 100 kPa 7,-25℃