Page 56 - Pneumatic ebook (2)_draft 13 sept 2021

Continuous Cooler

a. Air cooled b. Water cooled

This type of aftercooler uses air to cool down the 1. This type of aftercooler uses water to cool down the hot air
compressed air. This air cooled aftercooer consists after compression. The arrangement of the air inlet, air outlet,
nest of tubes as shown in figure (a). Hot air enters the water inlet and water outlet are as shown in the figure (b).
aftercooler through inlet and passes by the nest of 2. The flow of water and air should be opposite direction through
tubes. The air will be cooled down by means of cold air the cooler. Temperature of the air discharged should be
produced by fan assembled in the aftercooler. approximately 10°C above the temperature of the cooling
water. The accumulated condensation is removed through an
automatic drain, attached to aftercooler. Usually, aftercoolers
equipped with a safety valve, pressure gauge, and
thermometer pockets for air and water.

a. Principle of an air cooled aftercooler

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a. Air cooled cooler b. Principle of a water cooled aftercooler

b. Water cooled cooler

INTRODUCTION TO PNEUMATIC SYSTEM 23