Question

how cooling tower works? ​

Answer 1

Answer:

Cooling tower systems work by using water to extract waste heat from a system and ejecting it into the atmosphere primarily through evaporation. The water is then distributed over the top of the cooling tower where air travels past the warm water causing a portion of the water to evaporate.

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Answer 2

Answer:

Cooling towers are essentially large boxes designed to maximize evaporation of water.  To do this, they contain material, typically PVC plastic sheets, that create large surface areas for water evaporation to occur.  This material is what fills the inside of the cooling tower and is called "Cooling Tower Fill".