Closed cooling tower cooling process

The cooling process in a closed-circuit cooling tower is as follows:

1. Cooling water enters the cooling tower tank.
2. The cooling water is pumped to the cooling tower's heat exchanger.
3. The cooling water in the heat exchanger exchanges heat with the heat source to be cooled, absorbing heat.
4. The cooling water flows out of the heat exchanger and enters the other side of the cooling tower tank.
5. The cooling water is pumped back to the heat exchanger for the next cooling cycle.
6. During the cooling cycle, dirt and microorganisms may accumulate in the cooling water, requiring regular cleaning and maintenance.
7. Closed-circuit cooling towers also require the addition of chemicals, such as preservatives and biocides, to prevent microbial growth and corrosion.

In short, closed-circuit cooling towers achieve cooling by circulating cooling water to absorb heat and reduce the temperature of the heat source.