A two stage air compressor has an intercooler between the two stages as shown in Fig P11 60, the inlet state is 100 kPa, 290 K, and the final exit pressure is 1 6 MPa Assume that the constant pressure intercooler cools the air to the inlet temperature, T3 61501 61472 T1 It can be shown, see Problem 9 130, that the optimal pressure, P2 (P1P4)1 2, for minimum total compressor work Find the specific compressor works and the intercooler heat transfer for the optimal P2

Question: A two-stage air compressor has an intercooler between the two stages as shown in Fig. P11.60, the inlet state is 100 kPa, 290 K, and

A two-stage air compressor has an intercooler between the two stages as shown in Fig. P11.60, the inlet state is 100 kPa, 290 K, and the final exit pressure is 1.6 MPa. Assume that the constant pressure intercooler cools the air to the inlet temperature, T3 T1. It can be shown, see Problem 9.130, that the optimal pressure, P2 = (P1P4)1/2, for minimum total compressor work. Find the specific compressor works and the intercooler heat transfer for the optimal P2.

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