Sr. No. Parameters Reciprocating Rotary 1 Discharge pressure Very high i.e. 1000 bar Very low i.e. 10 bar 2 Free air delivered The maximum free air delivery is about 300 m3/min. The maximum free air delivery is as high as 3000 m3/min. 3 Air supply The air supply is intermittent The air supply is continuous. 4 COP High (Approx. 3) Low (Approx. 0.6) 5 Capacity Limited up to 1000 tons for single compressor It may be above 1000 tons 6 Noise More Quiet operation 7 Leakage More leakage due to high pressure Almost there is no Leakage 8 Operating cost High because more compressor work consumes Less because of less heat energy is required 9 Suitable refrigerant R - 12 Ammonia
