The Difference Between Closed and Open Circuit Cooling Tower Systems

The Difference Between Closed and Open Circuit Cooling Tower Systems

A cooling tower is used to cool and circulate water used in settings such as induction heating machine, induction melting machine and other plants, Cooling towers extract waste heat to the atmosphere through the cooling of a water stream to a lower temperature.

There are two different types of cooling towers: closed circuit cooling towers, and open circuit cooling towers. Both types of towers serve the same purpose, but they go about cooling the water in different ways.

A open circuit cooling tower is an enclosed structure that distributes warm water over a labyrinth-like packing or fill, which provides an expanded air-water interface for heating of the air and evaporation to take place. The water is cooled as it falls through the fill, and is then collected in a cold water basin below. The heated moisture-laden air leaving the fill is discharged into the atmosphere.

  

A closed circuit cooling tower 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 cascading water provides evaporative cooling similar to an open cooling tower, except that the cooled water never makes direct contact with the air

Why SHANGHAI COOLDO INDUSTRIAL CO., LTD.

 make strong suggestion to use closed circuit cooling tower even though it much higher cost than the open circuit cooling tower ,

Because: 

1, The water never contact with the air, keeping the water clear.
2, The clear water can extend life-span of the machine.

                        3, Responding the call of Water conservation. 

COOLDO TECHNICAL DEPT.

2016-03-17