Cooling Tower Fills (also called “packing” or “wet-decking”) are the heart of the heat transfer process. They are the engineered medium inside the tower that maximizes contact surface area and contact time between the hot water and the cooling air.
Think of them as the radiator core of the cooling tower.
Primary Function
To facilitate the efficient transfer of heat from the water to the air through:
- Evaporation: (The primary cooling mechanism) Provides a large surface area for water to form a thin film or small droplets, promoting evaporation.
- Sensible Heat Transfer: Direct conduction/convection when water and air are in close contact.