A cooling tower is a specialized heat exchanger in which air and water are brought into direct contact in order to reduce the water’s temperature. As this occurs, a small volume of water is evaporated, reducing the temperature of the water being circulated.
Cooling Tower Science
Water, which has been heated by an industrial process or in an air-conditioning condenser, is pumped to the cooling tower and flows through nozzles, spraying water onto the material called “fill,” which slows the flow of water through the cooling tower, and exposes as much water surface as possible for maximum air-water contact. As the water falls down through the cooling tower, it is exposed to moving air, which is being pulled through the tower by an induced draft fan