What is a cooling tower & How cooling tower works?

What is a Cooling Tower?A cooling tower extracts heat from water by evaporation.  In an evaporative cooling tower, a small portion of the water being cooled is allowed to evaporate into a moving air stream to provide significant cooling to the rest of that water stream.  Evaporative Cooling towers are relatively inexpensive and very dependable means of removing low grade heat from your process. 
Cooling Towers are commonly used to provide lower than ambient water temperatures and are more cost effective and energy efficient than most other alternatives.  The smallest cooling towers are structured for only a few gallons of water per minute while the largest cooling towers may handle upwards of thousands of gallons per minute.  The pipes are obviously much larger to accommodate this much water in the larger towers and can range up to 12 inches in diameter. 

How Cooling Tower Works?When water is reused in the process, it is pumped to the top of the cooling tower and will then flow down through plastic or wood shells, much like a honeycomb found in a bee’s nest.  The water will emit heat as it is downward flowing which mixes with the above air flow, which in turn cools the water.  Part of this water will also evaporate, causing it to lose even more heat. 





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