AirCooled Aftercoolers

Why use this equipment?

This equipment is a heat exchanger to cool the compressed air discharged from an air compressor with atmospheric air.

The compressed air is cooled to approximately 9^oC, above ambient temperature. This substantially reduces the water and level of other contaminants in the air-supply, as water will be reduced by 1/2 for every 20 degree reduction in temperature.

Sizing Notes, Recommendations are based on the following :-
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Heat Removal : After cooler = Compressor horsepower x 1.15 ( motor service factor ) x .17 (this assumes 17% of input horsepower is rejected to heat).
15^oF Approach Temperature : Compressor air outlet temperature - ambient air temperature.
Temperatures : Ambient Air Temperature + 15^oF = Compressed Air Outlet Temperature.
Flows : Compressor Horsepower x 4.5 = SCFM Air Flow.

Air flow rates are based on less than a 4 PSI pressure drop @ 100 PSI operating & 100^oF ambient and 50% relative humidity‍

Ratings :

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   Maximum working pressure              : 250psi
   Maximum working temperature        : 250^oF

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Materials:

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   Cooler                            :    Aluminum
   Shroud                           :    Powder Painted Steel.
   Fan guard                      :   Zinc Plated Steel.
   Fan Blade                      :   Polypropylene Blades Aluminum Hub.
   Mounting brackets       :   Powder Painted Steel.

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