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An HVAC cooling tower is used for disposing or rejecting heat from chillers. Air cooled chillers are less effecient than water cooled chillers due to rejection of heat from tower water near wet-bulb temperatures.
A chiller is a heat-transfer device that uses mechanical. refrigeration to remove heat from a process load and. transfers the heat to the environment. Chillers are used by. plastics processors when they need a lower process fluid. temperature than a simpler system, such as an evaporative. cooling tower, can provide.