Manufacturers and owners both desire a cooling tower to perform at maximum effectivity. Unfortunately, there are quite a lot of causes a tower will not be needing performance expectations. Lots of the influences which undermine tower efficiency are external. By identifying and eliminating them, full rated efficiency levels will be achieved and maintained.
The most common exterior influence is recirculation. Cooling towers are always discharging heat, saturated air. If this air is recirculated back into the tower the system will start to expertise problems due to the elevated water temperatures. The worst-case scenario is that the system tolerances exceeded which will pressure the cooling tower to be shut down till the water temperature normalizes.
The restriction of air coming into the cooling tower can also drastically influence its total efficiency. Poor airflow increases the chilly water temperature. Airflow is so essential that manufacturers spend vital sources calculating the mandatory quantity to fulfill documented efficiency ranges. Airflow additionally dictates the required fan/motor mixture required to always move sufficient air through the static strain naturally created inside a cooling tower.