A two-stage, single-acting reciprocating air compressor draws in air at 1 bar and 300 K. The delivery pressure is 12 bar. The intermediate pressure is ideal for minimum work and the intercooling is...

Extracted text: A two-stage, single-acting reciprocating air compressor draws in air at 1 bar and 300 K. The delivery pressure is 12 bar. The intermediate pressure is ideal for minimum work and the intercooling is perfect. The index of compression is 1.3. Flow rate of air through the compressor is 0.15 kg/sec. Determine: (i) Power required to drive the compressor, (ii) Saving in power compared to single stage,