Open cooling tower principle and operation
An open circuit cooling tower is a heat exchanger, which enables water to be cooled through direct contact with air.
The heat transfer from the water to the air is carried out partly by sensible heat transfer, but mainly by latent heat transfer (evaporation of part of the water into the air), which makes it possible to reach cooling temperatures lower than ambient temperatures.
The hot water to be cooled is pumped to the top of the open cooling tower through pipes. This water is divided and distributed over the heat exchange surface by low pressure water distribution nozzles.
Blown by the fan, the fresh air enters into the lower section of the open cooling tower 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, the water spreads in uniform way, falls down the whole height. The exchange surface is then increased.
The water, cooled thanks to forced ventilation, falls into the inclined basin at the bottom of the tower. Then the water is sucked through the strainer. Drift eliminators located at air outlet reduces drifts losses.
Evaporative cooling remains the most ecological and economical technology: high energy performance and competitiveness.
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The selection of a cooling tower is subject to a personalised study to ensure that the design meets the requirement of each application.
The exchange surfaces and casings of the towers are carefully chosen according to the process to be cooled, the quality of the water and the operating conditions.
Heavy duty water
High efficiency combined with JACIR design for dirty waters and heavy duty operation.
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Specially designed to meet the industrial cooling requirements: long life reliability in hardest and various conditions: iron & steel, agro food industry, milk industry…