Differentiate between reciprocating compressors and rotary compressor.
1 Answer
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.
Please log in to add an answer.