Yearly Archives: 2025

A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream, to a lower temperature.[1] Cooling towers may either use the evaporation of water to remove heat and cool the working fluid to near the wet-bulb air temperature or, in the case […]

An adiabatic cooling tower is a closed-circuit cooling system that utilizes ambient air to cool process water, often incorporating pre-cooling pads for enhanced efficiency. It works by drawing air through wetted pads, which evaporates the water and cools the air, effectively reducing the temperature of the incoming air before it’s...

A dry cooling tower is a heat rejection system used in industrial and power generation processes to cool fluids without using water evaporation. Instead of relying on water’s evaporation, dry cooling towers utilize air as the cooling medium, often through air-cooled heat exchangers. They are especially useful in areas with limited water...

Dry cooling towers conduct heat transfer through air-cooled heat exchangers that separate the working fluid from the cooling air. Because there is no direct contact between the working fluid and the ambient air, there is no water loss in this system. Dry cooling towers have two basic types: direct and indirect systems.

In a wet cooling tower (or open circuit cooling tower), the warm water can be cooled to a temperature lower than the ambient air dry-bulb temperature, if the air is relatively dry (see dew point and psychrometrics). As ambient air is drawn past a flow of water, a small portion of the water evaporates, and […]