What Is A Cooling Tower Fan

A cooling tower fan is a large industrial fan used in cooling towers to move air through the tower so heat can be removed from water more efficiently.

What Is A Cooling Tower Fan

A cooling tower works by letting warm water release heat to the air. The fan helps by:

* Pulling air upward through the tower (induced-draft fan)

* or Pushing air into the tower from the bottom (forced-draft fan)

This airflow increases evaporation, which cools the water before it gets sent back to the chiller or industrial process.

Types of Cooling Tower Fans

1. Induced Draft Fan (most common)

* Located at the top of the cooling tower

* Pulls air up and out of the tower

* Creates a strong, consistent airflow

* More energy efficient and stable

2. Forced Draft Fan

* Located at the tower’s bottom or side

* Pushes air in

* Easier to maintain, but airflow is less stable

Fan Components

* Fan blades (aluminum, FRP/fiberglass reinforced plastic)

* Fan hub

* Gearbox or belt drive

* Electric motor

* Variable frequency drive (optional) — controls fan speed for efficiency

Why What Is A Cooling Tower Fan important

The fan:

* Improves heat rejection

* Reduces cooling water temperature

* Improves chiller performance

* Saves energy when speed is controlled