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Adiabatic alternative

An adiabatic water cooler said to offer significant cost, water-reduction and health and safety benefits over traditional cooling towers, including “a zero risk” of Legionella, has been introduced by Carter Muller.

Requiring no water treatment and no potentially pathogenic bacteria-carrying aerosols to maintain it, the cooler incorporates foul-free coils, which help maintain thermal efficiency and prolong its life because the coil surface remains completely dry.

With no filters, pre-filters or UV lamps, whole-life costs and energy efficiency are further enhanced while, alongside very low water consumption, no water samples are required, and the cooler is not subject to complex regulations.

During dry operation, fans draw cooling air across the dry honeycomb pad and then the heat exchanger, cooling the process water inside the coils. When further cooling is required to attain preset water outlet temperature, each fan is switched on automatically.

In adiabatic operation, when there is insufficient cooling from the fans alone, the honeycomb pad will be saturated. The fans draw the warmer air across the saturated pad, which cools the air by evaporation. The cooler air then crosses the coils, further cooling the process water.

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