Difference Between Centrifugal and Reciprocating Compressor

Comparative point Centrifugal Compressor Reciprocating Compressor
Working principle It uses centrifugal force to compress the vapour refrigerant. It uses reciprocating motion of piston to compress the vapour refrigerant.
Output It gives continuous output of compressed vapour refrigerant. It gives intermittent output of compressed vapour refrigerant.
Vibrations No vibrations. Heavy vibrations.
Wear and tear Less wear and tear, because valves and piston are absent. High wear and tear.
Life Longer life. Shorter life.
Noise Less noisy operation. More noisy operation.
Running speed It is capable of running at high speeds. It runs at lower speeds due to piston limitations.
Volume of vapour refrigerant handled. Large. Comparatively less.
Efficiency High efficiency. Low efficiency.
Suitability for systems having capacity below 50 TOR It is not practical to use below refrigeration load of 50 TOR. It is practical to use below refrigeration load of 50 TOR.
Specific volume of refrigerant to be compressed. Refrigerants with high specific volume are compressed. Refrigerants with low specific volume are compressed.
Problem of Surging Surging is a problem. Surging is not a problem.
Increase in pressure per stage Less More.
Size Compact Bulk.
Floor area required Less Large.

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