News update:Feb 3, 2010

Hydor's evaporative cooling system brochure

Hydor Limited, involved in Agricultural ventilation, has produced a new publication on evaporative cooling.

The 16-page brochure is relevant to agricultural, horticultural and industrial customers alike, offering an overview of the many benefits of the evaporative cooling technique (cooling, humidity control, soaking and disinfection, dust binding, odour suppression and insect control) and the Hydor systems that deliver those very benefits.

Originally developed for use in poultry and cattle housing, evaporative cooling is a simple but highly effective method of reducing temperature and increasing humidity. Micron-sized water droplets are emitted from a series of water nozzles under high pressure to dissipate heat. In the warm environment, the droplets evaporate, changing from liquid to vapour in a chemical endothermic process that takes in heat energy from the surrounding air during the process. 

As a result, air temperature is very effectively reduced without causing damp, condensation or damage to any fixtures or fittings.

Controlled humidity

In addition to providing a cooling effect, an evaporative cooling system can be used to add humidity to dry air in a controlled manner. Linked to a humidity control system, it can effectively maintain a set relative humidity improving indoor climate conditions.


When the high-pressure system is run continuously without the ventilation system, it can be used to soak internal surfaces to make cleaning (of pig and poultry houses for instance), much easier and quicker, says the company. The system can also be used within animal housing to remove small particles and contaminants from the air, again making it an effective way of controlling dust, insects, odour and pollution levels. The ultra-fine mist collects particles that are too small to be collected by normal water, removing them from the building by way of the ventilation system. Using the system in this way to bind dust and suppress odours is beneficial for the improved respiratory health of both the animals and the workers. The moist air also eradicates the problem of flies and insects. Again, this can be beneficial in helping to reduce the problem of red mites in poultry houses.

The new brochure offers several typical case studies in dairy, poultry and pig housing installations.

Related link:

Hydor Limited

Natalie Berkhout

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