A cooling tower is a device used in industrial or commercial facilities and is designed to cool a heated liquid. They are often used in large-scale HVAC systems, power plants, refineries, chemical plants and industrial processes. Cooling towers work to cool hot water or other liquids with the help of air.
The working principle of the cooling tower is as follows:
-The heated liquid is fed: The liquid that needs to be cooled (usually water) is fed to the cooling tower with the help of a pump.
-It enters the distribution system: The liquid enters the distribution system of the cooling tower. This system ensures that the liquid is distributed homogeneously within the tower.
-Ventilation system: There are large fans or fans on the cooling tower. These fans direct the fresh air flow drawn from outside to the tower.
-Water and air contact: As hot liquid flows upward through the distribution system, fans create an air flow from bottom to top. This current evaporates some of the liquid and a heat transfer occurs between the water and the air.
-Heat transfer: Heat transfer is increased by a large-surface filler material that increases the surface area of the liquid. This filling material increases the liquid's contact with air and the evaporation process. Hot water cools by evaporation and rises with the air.
-Water is discharged outside: Chilled water is collected in the lower chamber after the aeration process and removed from the system through a drainage system. This water can be sent back to the pumps for recirculation or used in a different usage area.
Cooling towers save energy by using this mechanism to cool hot water. The air flow created by the fans accelerates the evaporation of water and reduces the temperature. In this way, the liquid is cooled by creating a temperature difference.
The size and design of cooling towers can vary depending on the intended use, the needs of the facility and the volume of liquid that needs to be cooled. Additionally, to minimize environmental impacts, some cooling towers may be equipped with water-saving and energy-efficient features.
