Physics · Compressors
A single-acting, single-cylinder reciprocating air compressor is compressing 20 kg/min of air from 110 kPa and 300 K to 660 kPa according to PV1.25 = Constant. Mechanical efficiency is 80%. What is the power input to the compressor? [Given: R = 0.287 kJ/kg-K, (6)0.2 = 1.43, Neglect clearance, leakage and cooling]
- 171.75 kW✓
- 227.38 kW
- 358.54 kW
- 439.23 kW
Correct answer
71.75 kW
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