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Water Cooling Systems - Evaporative Cooling

Water Cooling systems date back to pre-Roman and early Egyptian culture. Early water-cooling consisted of river water channels directed through living areas to provide connective and evaporative cooling. This evolved to using wet mats to cool indoor air. They hung the mats over the doors of their tents and other dwellings. When wind blew through the mats, evaporation of the water-cooled the air inside. The people of India later used this method to cool the royal palaces. 

During the 1500's the first mechanical fan was built to provide ventilation. In 1800, textile manufacturers in New England began using water evaporative systems to condition the air in their mills. The systems consisted of large "cooling towers" with fans that transported the water-cooled air inside buildings.

Evaporative cooling towers are widely used for the rejection of processed waste heat in all industry sectors - including mining, steel, food processing, paper, sugar, chemicals and petrochemicals, dry-cleaning, plastics, air-conditioning and power generation. Their use allows cooling to temperatures approaching the air Wet-Bulb temperature. The recirculation of cooling water through the tower eliminates the need to locate the process plant near a large source of water, or use endless amounts of "fresh" water daily.

When liquid evaporates, the amount of latent heat required to cause its evaporation is removed from the remaining liquid, which is cooled. In this case, there is a net heat flow from the water flowing through the heat exchange filling material, which is itself a heat source and is cooled, through the remaining liquid to the water vapor taken up by the air stream, which will be imperceptibly heated. This principle is used in all forms of evaporative cooling.

Tektower has a range of Cooling Towers for consideration:

  1. EWK range for the smaller to medium user. It is factory assembled and mostly supplied completely assembled for installation on site.
  2. EWB for medium to large users. Modular designed for assembly on site.
  3. EWL for large user. Custom designed to suit customer's requirements and either made from structural steel or reinforced concrete.
  4. TLP suitable for enclosed spaces due to low height. Corrosion proof, durable, light weight construction.