In wet cooling towers the water to be cooled is sprayed over a wet deck surface. Water and air come into direct contact in the counter flow. The water is cooled by convection.

Wet cooling towers are a proven method of closed-circuit cooling and heat dissipation. Typical areas of application are: air conditioning, heavy industry and power stations.

The atomizer sprays the water to be cooled over the wet deck surface. The water trickles from the top to the bottom along the wet deck surface whilst air flows from the bottom to the top.

Some of the water evaporates and the evaporation heat removed further cools down the water.

The examines the main components and principle of a wet cooling tower with forced ventilation. Water is heated in a tank and transported by a pump to an atomiser.

The evaporated water volume is recorded. The air flow is generated by a fan and adjusted using a throttle valve. The cooling column is transparent allowing clear observation of the wet deck surface and the trickling water.

The heat is transferred directly from the water to the air by convection and evaporation.