The setup has a two stage air compressor, an air tank with an orifice, nine pressure gauges, an energy meter to measure input power, and a temperature display to check temperatures at different points. The compressor is mounted on an air receiver along with the motor and includes a pressure switch and a safety air relief valve. At different discharge pressures, the system calculates isothermal and volumetric efficiency.

Experimental Objective

• Study the working principle of a two-stage air compressor.
• Analyze and calculate the efficiency of the compressor.

Specifications   

• Two stage, double cylinder air compressor runs with a 2 hp motor.
• Three phase motor with delivery valve is placed on top of air receiver.
• Water manometer with air tank and opening checks air intake flow.
• Pressure gauges are fitted at the outlet of both stages.
• Temperature readings are shown on a computer screen.
• Energy meter is used to measure the input power. 

Utilities Required Other than above Supply

• Floor space: 2.5 m × 1.5 m
• Power supply: 440 V, 15 A, 3-phase AC with neutral and proper earthing
• Supplied with a hand tachometer for speed measurement