What is HAVC? 

Heating ventilation and air conditioning (HVAC) systems are used to control temperature and humidity in buildings. Use cooling towers to remove excess heat from the refrigerant to the atmosphere. Heat is removed by evaporative cooling. The rate of cooling depends on the cooling tower surface area, humidity, temperature, and water and air velocities.

The central air-conditioning system is mainly composed of a refrigerator, a cooling water circulation system, a chilled water circulation system, a fan coil system and a cooling tower. It works as follows:

The refrigerator compresses the refrigerant into a liquid state through the compressor and sends it to the evaporator for heat exchange with the chilled water to cool the chilled water. Purpose. The evaporated refrigerant releases heat in the condenser into a gaseous state, and the cooling pump sends the cooling water to the cooling tower, which is sprayed and cooled by the water tower fan, and then exchanges heat with the atmosphere.


What is a cooling tower?

It is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to reduce the water temperature; its cooling is completed by the process of water evaporation, and the cooling water can continue to be recycled, which is economical. In terms of above, the waste of cost is virtually reduced.

The cooling method of the cooling tower is to spray hot water on the surface of the heat dissipation material and contact the moving air through it. At this time, heat exchange of sensible heat occurs between the hot water and the cold air, and at the same time, part of the hot water is evaporated, that is, the latent heat of evaporation in the evaporated water vapor is discharged into the air, and finally the cooled water falls into the air. In the water tank, it is sent to the heat exchanger by the pump, and then the heat is absorbed.


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