Double Acting Air Compressor

The air compressor technology used most prevalently for this application is the double acting oil free water cooled reciprocating air compressor.

Double acting air compressor.

Theoretically a double acting compressor will deliver twice the amount of compressed air compared to a single acting compressor of. The double acting compressor compresses the air on both the up stroke and the down stroke of the piston doubling the capacity of a given cylinder size. In order to connect the piston in a double acting cylinder to an external mechanism such as a crank shaft a hole must be provided in one end of the cylinder for the piston rod and this is fitted with a gland or stuffing box to prevent escape of the working fluid. A single stage double acting air compressor of 150kw power takes air in at 16 bar delivers at 6 bar.

A double acting cylinder is a cylinder in which the working fluid acts alternately on both sides of the piston. With the higher pressures and air flows that are required the p e t. The compression follows the law pv 1 35 c. A single acting compressor will have an operating efficiency between 22 24 kw 100 cfm of air.

In simple word we can say that suction compression took place on both ends of piston cylinder in double acting reciprocating air compressor. Power p 150kw. Bottle blowing market is a strong niche market for the double acting oil free reciprocating piston compressors. Double acting recips are some of the most efficient compressors ever built but they re not as common as they used to be.

The compressor runs at 160rpm with average piston speed of 150 m min. This double compression cycle is what makes this type of air compressor very efficient. While at same time discharge stroke is in process at another end of the piston. Piston speed 2ln 150m min.

Determine the size of the cylinder. For a double acting piston design a compressor running at 1 200 rpm will generate a standing wave of 28 4 feet. When it is a double acting reciprocating air compressor suction stroke is in process at one end of the piston. This gives you two compression cycles for every turn of the crankshaft.

In double acting air compressor air is admitted alternatively to both sides of the piston. Speed n 160rpm 160 6 0.