PERFORMANCE TEST ON RECIPROCATING AIR COMPRESSOR
to determine the volumetric efficiency and isothermal efficiencies at various delivery
pressures.
APPARATUS REQUIRED:
1. Reciprocating air compressor test rig.
2. Manometer
3. Tachometer
SPECIFICATIONS:
Power : 5KW
Type : Two stage reciprocating
Cooling Medium : Air
Capacity : 0.6 m3/min
Maximum Pressure : 10 Bar
Speed : 950 rpm
BRIEF THEORY OF THE EXPERIMENT:
The two stage reciprocating compressor consists of a cylinder, piston, inlet and
exit valves which is powered by a motor. Air is sucked from atmosphere and compressed
in the first cylinder (Low pressure) and passed to the second cylinder (High pressure)
through an inter cooler. In the second cylinder, air is compressed to high pressure and
stored in the air tank. During the downward motion of the piston, the pressure inside the
cylinder drops below the atmospheric pressure and the inlet valve is opened due to the pressure difference.
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