An evaporative cooling system is a natural cooling method that occurs through heat and mass transfer between water and air. Under suitable conditions, water is brought into contact with air; the water absorbs latent heat from the air, evaporating and providing a cooling effect.

In the cooling system, the process is adiabatic; the enthalpy of the air and the wet bulb temperature remain constant during cooling. The dry bulb temperature and relative humidity of the air to be cooled determine the amount of cooling required.

In media (pad) type evaporative cooling systems, maximum evaporation of water is expected, and the goal is to bring the inlet air temperature as close as possible to the wet bulb temperature. The fundamental principle is the timely and maximum contact of water and air. To achieve this, evaporative cooling pads are designed with special surface geometry and materials that enable rapid evaporation of water over a wide area.

The process begins with the supply of water to the cooling modules through a circulation pump/ pumps located in the roof frame section.

The supply water is distributed from the top of the cooling modules to the evaporative cooling pads inside the module via a special mechanism. Some of the water moving downward on the pad surface comes into contact with the air passing through the pad, evaporating and entering the air. As a result, the inlet air is cooled and its relative humidity increases. The remaining water on the pad surface flows back to the water tank; the level, conductivity, bleed, and a series of other processes are monitored and controlled, allowing the process to continue in the same manner.