If you look down from a high-rise building, you may notice a square unit with a fan in the building below. Most people think that cooling towers can only be found in urban buildings, but they can be found in buildings around the world. Basically, the cooling tower is used to cool the water. It is a huge heat exchanger that discharges the heat of the building into the atmosphere and returns the cooler water to the cooler. The cooling tower receives hot water from the cooler. This hot water is called condenser water because it absorbs heat in the condenser of the cooler. The cooler is usually located in a lower position, such as a basement. The role of the cooling tower is to cool the water, so it can return to the cooler to absorb more heat.

When the warm condenser enters the cooling tower, water will pass through some nozzles, which will be sprayed into small droplets on the entire packing, which will increase the surface area of the water and cause greater heat loss through greater evaporation . The role of the fan at the top of the cooling tower is to introduce air from the bottom of the cooling tower and move it up and down in the opposite direction to the condensate on the top of the device. The air brings heat to the atmosphere through the evaporated water of the cooling tower. For every pound of water evaporated, about 1,000 BTU of water cooling occurs. The heat dissipated into the atmosphere is all the excess heat in the building.

Water costs money, so in order to reduce costs and water consumption, the cooling tower will use a water remover, the water remover is located above the filling package, and the nozzle is located below the fan. The water trap removes some moisture from the air, then flows back into the packing for further cooling, and finally gathers in the water tank of the cooling tower and returns to the cooler. Once it returns to the cooler, it will absorb heat and the cycle will start again