Cooling tower

The cooling tower is a device where heat rejection takes place. At the tower, waste heat is extracted to the atmosphere by having the water stream cooled to a reduced temperature. The heat rejection type at the cooling tower is referred to as ‘evaporative’ where a small water portion is allowed to evaporate into the moving air and provides a significant cooling effect on the rest of the water stream. The common applications where the cooling tower is used are such as providing cool water needed for air conditioning, refrigeration and other industrial uses.