Home » Mechanical Engineering » Comparison of Reciprocating and Rotary Air Compressors

Comparison of Reciprocating and Rotary Air Compressors

Comparison of Reciprocating and Rotary Air Compressors

compressors

Reciprocating Air Compressor               Rotary Air Compressor
The maximum delivery pressure may b as high as 1000 bar. The maximum delivery pressure is 10 bar only.
The maximum free air discharge is about 300m3/min The maximum free air discharge is as high as 3000m3/min.
They are suitable for low discharge of air at very high pressure. They are suitable for large discharge of air at low pressure.
The speed of air compressor is low The speed of air compressor is high
The air supply is intermittent. The air supply is continuous.
The size of air compressor is large for the given discharge. The size of air compressor is small for the same discharge.
The balancing is a major problem. There is no balancing problem
The lubricating system is complicated The lubricating system is simple
The air delivered is less clean, as it comes in contact with lubricating oil. The air delivered is more clean, as it does not come in contact with the lubricating oil.
Isothermal efficiency is used for all sorts of calculations. Isentropic efficiency is used for all sorts of calculations.

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