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The cooling towers are aiming to lower the temperature of the hot water comes from a cooling circuit through the heat and mass transfer to the air that circulates inside the tower. To improve the air-water contact, using a fabric called "stuffed." Water enters the tower at the top and spread evenly over the filling using sprayers. Thereby achieving a good contact between water and atmospheric air.

The filler serves to increase the time and area of exchange between water and air. Once the contact between water and air, a constant heat transfer from water to air. This occurs because of two mechanisms: convection heat transfer and the transfer of water vapor from the air, thereby cooling the water due to evaporation.

In the heat transfer by convection, there is a heat flow toward the air surrounding the water due to the temperature difference between the two fluids.

The simplest and usual way of classifying the cooling towers is based on how air moves through it. There are towers of natural circulation and forced draft towers. In natural circulation towers, air movement depends only on the climatic and environmental conditions. Forced draft towers use fans to move air through the packing.

Mazimizar Forms of Efficiency of Cooling Tower:
-Maintaining optimal water quality.
-Maximize the efficiency of heat transfer.
-Minimize air crashes and the need for makeup water.
-Reduce the operating time due to replacement.
-Increase the lifespan of the equipment.
-Reducing the use of chemicals.
-Use 3 to 5 micron filters.
Diagram of a Cooling Tower System Ionization and Oxidation.