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EVAPORATIVE TOWERS

Evaporative cooling towers

perating on a simple principle of cooling whereby the forced evaporation of a small quantity of water causes a lowering in temperature of the mass of water, evaporative towers continue to be the most widely-used cooling system in civilian and industrial contexts.

The lowest temperature limit an evaporative tower can reach is that of the ambient wet-bulb temperature in the area where it is installed, usually much lower than the dry-bulb temperature, which is however the basis for other cooling systems (which produce end temperatures 3 - 5 ° C higher than this parameter).

In practice, due to factors linked to air saturation, an appropriately-sized tower is capable of cooling water to a temperature barely 2 - 3° C above the wet-bulb temperature. On this basis, many manufacturers and installers of machinery design cooling circuits and heat exchangers with the prospect of using water from the tower in mind, and can therefore guarantee optimum yield from their installations.

TOC SERIES COOLING TOWERS

The construction of the TOC series of cooling towers is based on the corrosion-proof principles which distinguish the WEKER range, and offer a solution whose main features are high quality materials and low noise levels, which can be reduced further by the installation of sound-absorbing silencers. The structural features vary according to the model and the dimensions, while the basic choice of materials remains invariable.

TOA SERIES COOLING TOWERS

WEKER cooling towers are built entirely in stainless steel, to prevent problems of corrosion, which are very common in this kind of product as the towers are in constant contact with water and exposed to atmospheric agents. The structure is self-supporting and reinforced at the points of greatest static and dynamic load. The internal fill material, in flame-retardant PVC, has corrugations of 20 mm, particularly recommended for industrial use. The multiple-blade axial fan gives excellent yield at low energy levels, while the individual blades, made of aluminium or nylon glass fibre, are easy to replace.