17 Important terms used in Air Compressor ( PART B )

In previous post 8 important terms are covered, in this, you will find remaining important terms about
Air Compressor.These terms are most essential because they are the fundamentals of Air Compressor Techonology.
One who is interested in air compressor must always remember the following definitions.
09) Inlet Pressure :- This is the absolute pressure of the air at inlet (suction) to a compressor.
10) Discharge Pressure :- This is the absolute pressure of the air at outlet (delivery) of a compressor.
11) Compression Ratio :- This is the ratio of the absolute discharge pressure to the absolute inlet pressure.
12) 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 centigrate,
if air conditions is not given.
13) Capacity of Compressor :- Capacity is the volume of air delivered by compressor.It is generally expressed
in cubic feet/min. or meter cube/ min.
14) Theoretical Horse Power :- This is the horse power required to compress adiabatically the air delivered by a
compressor through specified pressure range,without any provision for lost energy.
15) Brake Horse Power :- BHP is the actual horse power input reuired by a compressor.
16) Compressor Efficiency :- This is the ratio of theoretical horse power to the brake horse power.
17) Volumetric Efficiency :- This is the ratio of the capacity of a compressor to the piston displacement of compressor.

Most of the important terms are covered by two post ( PART A & B ).More important topics will cover in coming post.
I promise,every post is useful & clearly describe the topic so, it will help you to increase your knowledge about
Air Compressor.

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