Page 14 - PNEUMATIC AND HYDRAULIC

1.1.2 Selection of Compressor

The following points should be considered:

i. System Flowrate Demand: This should include both the estimated initial

loading and near-term loading.

ii. Standby Capacity for Emergencies: This could be a second compressor that

is connected to the main line.

iii. Future Air Requirement: This issue should be considered in the selection of

the compressor due to the cost of replacement of the compressor.

1.1.3 Receiver

An air receiver is essential to every compressed air system to act as a buffer and a

storage medium between the compressor and the consumption system.

1.1.3.1 Advantages of Pneumatic Receiver

i. Compress air can be stored

ii. Serves as a reservoir for sudden or heavy demands in excess of the
compressor capacity

iii. compressor need not be in continuous operation

iv. remove dirt and humidity; Serves to precipitate residual moisture and oil
droplets which may be carried over from the after cooler

v. prevent the maximum permissible pressure in a system from being
exceeded

vi. Dampens pressure pulsations, resulting in steady pressure in the system.

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