Open Circuit Cooling Tower vs. Closed Circuit Cooling Tower

Dec 27, 2018 | News

An open circuit cooling tower is a heat exchanger that cools the water through direct contact with air. It distributes warm water over a packing of fill which provides an expanded air-water interface for heating of the air which causes evaporation to take place. The heat transfer happens partially happens through the heat exchange but mainly through evaporation where the water needs to be cooled.

Benefits of opening cooling towers:

  • Optimal cooling
  • Allowing low process temperatures

A closed circuit cooling tower involves no contact between the air and the fluid being cooled. This tower has two separate fluid circuits, one in which the fluid is recirculated on the outside of the second circuit, which is a bundle of tubes through which the hot water is flowing. The air drawn through this water provides cooling similar to an open cooling tower, except that the cooled water never makes direct contact with the air.

Benefits of closed circuit cooling tower:

  • Capacity to withstand entering fluid temperatures up to 82.2 degree Celsius
  • Cleaner process fluid yields cleaner internal surface
  • Lower water treatment costs
  • Lower system maintenance costs
  • Prevents contaminants
  • Cleaner process fluid yields cleaner internal surface

Tower Water customizes its water treatment to meet the exact needs of our customers. Since 1992, there has never been an off the shelf solution package from Tower Water. Contact us now for more information.

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