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Tuesday, 25 December 2012

Reciprocating Air Compressor Terms.


Definitions: Reciprocating Air Compressor Terms.

Are you concerned with engineering field? Are you interested in compressor? Do you have any engineering education?


 Before taking up the actual study of air compressor one must know the important terms which are frequently used. These definitions are most essential because they are the fundamentals fair compressor education. One who is interested in reciprocating air compressor must always remember the following definitions.

Air Compressor
This is the machine which is used to increase the pressure of air by reducing its volume.


Reciprocating Compressor
This is a machine which compresses air by means of piston reciprocating inside the cylinder bore.


Single Acting Compressor:-
This is a machine which compresses air in only one end of piston and cylinder.


Double Acting Compressor
This is a machine where air is compressed at both end of piston andcylinder.


Single Stage Compressor
This is a machine in which air from atmospheric pressure is compressed up to desired discharge pressure in single operation (stage).




Two Stage Compressors
This is a machine in which air from atmospheric pressure is compressed up to desired pressure in two stages. In first stage air is compressed to an intermediate pressure & in second stage it is further compressed to desired discharge pressure.


Multistage Compressors
This is a compressor in which air is compressed from atmospheric pressure to desired pressure in more than two stages


Rotary Compressor
This is a machine in which the compression is effected by a rotating vane or impeller that imparts velocityto the flowing air to give it the desired pressure.


Inlet Pressure
This is the absolute pressure of the airat inlet (Suction) to a compressor.


Discharge Pressure
This is the absolute pressure of the airat outlet (delivery) of a compressor.


Compression Ratio
This is the ratio of the absolute discharge pressure to the absolute inlet pressure.


Free Air Delivery (FAD)
Free air delivery is the volume of air delivered under the conditions of temperature and pressure existing at the compressor intake. This generally taken as 1.0332 kg/cm square abs & 15 degree centigrade, if an air condition is not given.


Capacity of Compressor
Capacity is the volume of air delivered by compressor. It is generally expressed in cubic feet/min. or meter cube/ min.


Theoretical Horse Power
This is the horse power required to compress adiabatically the air delivered by a compressor through specified pressure range, without anyprovision for lost energy.


Brake Horse Power
BHP is the actual horse power input required by a compressor.


Compressor Efficiency
This is the ratio of theoretical horse power to the brake horse power.


Volumetric Efficiency
This is the ratio of the capacity of a compressor to the piston displacement of compressor.
What is your opinion? Which more information I have to add? Do you have any more terms to add?


Hope the above Guidelines will help you to store your compressor very safely until you start utilize it.
 

1 comment:

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