Yearly Archives: 2025

A dry cooling system, also known as a dry cooling tower or air-cooled heat exchanger, uses ambient air to cool a fluid, typically water or glycol, without direct contact between the fluid and the air, thus avoiding water consumption. This is in contrast to wet cooling towers, which rely on water evaporation to dissipate heat. […]

Here’s a more detailed explanation: Closed-circuit system: Dry cooling towers are closed-circuit systems, meaning the fluid being cooled (often water or a water-glycol mixture) is contained within a closed loop and does not come into direct contact with the ambient air. Heat transfer via heat exchanger: Heat is transferred from the working...

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. A dry cooling […]

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 […]

Wet cooling towers or open-circuit Cooling Tower or evaporative cooling towers operate on the principle of evaporative cooling. The working coolant (usually water) is the evaporated fluid, and is exposed to the elements. Closed circuit cooling towers (also called fluid coolers) pass the working coolant through a large heat exchanger, usually a...