Air Compressor Cooling Air Flow

01 the cooling water piping connections to the compressor cylinder intercooler and aftercooler should be arranged as shown in the general arrangement drawing and water piping diagram.

Air compressor cooling air flow.

Most air cooled aftercoolers are sized to cool the compressed air to within 15 f to 20 f of ambient cooling air temperature approach temperature. When selecting larger air cooled compressors the amount of cooling air flow required is proportionally larger and therefore the limitations of cooling air inlet and cooling air discharge in the room will need to be considered. As the compressed air cools up to 75 of the water vapor present condenses to a liquid and can be removed from the system. Smaller horsepower rotary screw compressors 40 hp and below are not typically available water cooled.

The more compressed air is cooled inside a compressor s inter cooler and aftercooler the more energy efficient the compressor will be and the more the water vapor will be condensed a water cooled compressor installation puts little demand on the compressor room ventilation system as the cooling water contains in the form of heat approximately 90 of the energy taken up by the electric motor. These values should be kept in mind when evaluating any compressor cooling system.