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Centrifugal Compressors vs Reciprocating Compressors





 

s/no
Centrifugal  Compressor
Reciprocating Compressor
1.
These are usually high speed compressors.
Low operational speed in Reciprocating Compressors.
2.
It contains high efficiency because the absence of Sliding Parts.
It contains high efficiency because the absence of Sliding Parts.
3.
Maximum delivery pressure is below 10bars will be obtained.
Maximum delivery pressure is upto  500-800 bars will be obtained.
4.
Centrifugal Compressor generally required a Simple lubrication system.
Reciprocating Compressor required a Complicated lubrication system.
5.
These type of compressors  are Isentropic Compression process .
These type of compressors  are Isothermal Compression process .
6.
Air handled in these process upto 250-300 m3/min .
Air handled in these process upto 2000-3000 m3/min .
7.
Less Vibrations are produced in these process.
Cyclic vibrations and noise  are produced  in these process.
8.
It contains less Weight when compared to other compressors.
It contains More weight.
9.
It required less maintenance when compared to Reciprocating Compressors.
It required more maintenance .
10.
It runs continuously and deliver  pulsating free air.
It runs intermittently and deliver  pulsating air.
11.
Low Cost is required to setup.
High Cost is required to setup.
12.
Pressure Ratio is upto 4 in these type of compressors.
In these type pressure ratio upto 5 to   8.
13.
The Action of Compressor in Centrifugal  Compressor  is a Dynamic Action.
Where as in case Reciprocating Compressors is a Positive Displacement.



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