Water-Cooled HVAC System!!

Cooling Tower

Cooling towers are a major component in commercial and institutional facility comfort and process cooling systems. The process rejects waste heat into the atmosphere through the cooling of a water stream to a lower temperature.Hot water that has been heated by an industrial process or in an air-conditioning condenser, is pumped to the tower through pipes.Then the water sprays through nozzles onto banks of material called "fill," which slows the flow of water through the cooling tower, and exposes as much water surface area as possible for maximum air-water contact.As the water flows through the tower, it is exposed to air, which is being pulled through the tower by the electric motor-driven fan.
An HVAC(heating, ventilating, and air conditioning) cooling tower is a subcategory rejecting heat generated by a chiller. As heat loads increase, water-cooled chillers are more energy efficient than air-cooled chillers. Air-cooled chillers must reject heat at the higher dry-bulb temperature, and thus have a lower average reverse-carnot cycle effectiveness. In areas with a hot climate, large office buildings, hospitals, and schools typically use one or more cooling towers as part of their air conditioning systems. Generally, industrial cooling towers are much larger than HVAC towers. 

Cooling towers are used in central air conditioning systems. The function of the cooling tower is to cool the warm water from the chiller condenser. Following the central air conditioning system cycle, the heat from the rooms in a building is transferred to chilled water, which is then transferred into the refrigerant, and finally to the cooling water. The cooling tower is at the final point of the heat transfer. The heat is transferred to the atmosphere.

The heat in the cooling water is removed by letting moving air come into contact with it. Water is normally spread out and allowed to drop down by gravity from a height.

Cooling Tower Applications: 
Cooling Tower is used in various sectors like: 

• Centrally A/C Plants

• Pharmaceutical Plants

• Laboratories

• Industrial Refrigeration

• Food Processing Industries

• Cinema Halls

• Auditoriums

• Engineering Industries

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