Open cooling towers

The hot water to be cooled is pumped to the top of the tower through pipes. This water is divided and distributed over the heat exchange surface by water distribution nozzles. Blown by the fan, the fresh air enters into the lower section of the unit and escapes through the upper section after being heated and saturated by passing through the wetted heat exchange surface. As a result of surface tension, due to the exchange surface mesh, the water spreads in a uniform way as it falls through the height of the cooling tower. The exchange surface is then increased. The water, cooled thanks to forced ventilation, falls into the inclined basin at the bottom of the tower.