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Differentiate between reciprocating compressors and rotary compressor.
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written 5.6 years ago by
teamques10
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| Sr. No. | Aspect | Reciprocating Compressor | Rotary Compressor |
|---|---|---|---|
| 1 | Pressure Ratio | Discharge Pressure of air is high. The pressure ratio per,stage will be in the order of 4 to 7. | Discharge pressure of air is low. The pressure ratio per,stage will be in the order of 3 to 5. |
| 2 | Handled Volume | Quantity of air handled is low and is limited to 50m3/s. | Large measure of air handled can be handled and it is,about 500 m3/s. |
| 3 | Speed of Compressor | Low speed of compressor. | High speed of compressor. |
| 4 | Size of compressor | Size of Compressor is bulky for given discharge volume. | Compressor size is small for given discharge volume. |
| 5 | Air supply | Air supply is intermittent. | Air supply is steady and continuous. |
| 6 | Compressed efficiency | Higher with pressure ratio more than 2. | Higher with compression ratio less than 2. |
| 7 | Maintenance | Higher due to reciprocating engine. | Lower due to less sliding parts. |
| 8 | Lubrication | Complicated lubrication system. | Simple lubrication system. |
| 9 | Initial cost | Higher | Lower |
| 10 | Suitability | For medium and high pressure ratio.,For low and medium gas volume. | For low and medium pressures.,For large volumes. |
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