Difference between Reciprocating Compressor and Rotary Compressor
🔗Reciprocating compressors working, applications, advantages and disadvantages
🔗Rotary compressor working, applications, advantages and disadvantages
Reciprocating compressor
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Rotary compressor
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Fluid compressed by reciprocating motion of piston.
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Fluid compressed by rotary motion of blades.
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Prime mover (motor or engine) and compressor is separated,
so they are heavy and bulky for a given discharge volume.
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Prime mover and compressor and compressor are
pressed in to a cylinder, so they are small and light.
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High clearance volume.
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Negligible clearance volume
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Low volumetric efficiency when compared to rotary
compressor
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High volumetric efficiency compared to reciprocating
compressor.
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Low speed compressor.
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High speed compressor.
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High pressure ratio per stage is achieved.
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Discharge pressure per stage is low when compared to
reciprocating compressor.
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The quantity of fluid it can handle is very low
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Since it
operates at high speed it can handle high volume fluid.
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Used for high and medium pressure ratio and for low and
medium volume.
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Used for high and medium pressure ratio and large
volume.
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Greater vibration and shaking due to reciprocating
action. The machine parts are poorly balanced.
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The machine parts are fairly balanced, it has very
less vibration.
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Since heavy vibration and shaking it require
rigorous foundation.
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Since less vibrational problem it do not require
rigorous foundation.
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High maintenance required
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Well balanced machine so it require less
maintenance.
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The supply of compressed fluid is intermittent.
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Supply of compressed fluid is continuous.
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Complicated lubrication is required
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Simple lubrication.
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The fluid (air) is directly comes in contact with
lubricating oil, so the discharge is often dirty.
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The discharged fluid is clean and free form dirt.
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It has greater flexibility in capacity and pressure
range.
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No flexibility in capacity and pressure range.
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