Fanless Cooling Tower

Method / Type 

Fanless / Natural Draft

Fan Motor Type

Sound free design

Since no fan, motor and gear box it is low noise Cooling Tower than any other low noise type Cooling Tower.

Since fan, motor and gear boxes are used, high noise and vibration

Method of Cooling

Exhausting is enforced by Cooling water ejection and not by mechanical force.

Cooling exhausted with the help of induced or forced draft fan motor and gear reducers.

Drift loss and dust control

It keeps the drift loss between 0.001% and 0.009% depends on ejection pressure, water loss is 95% less than of traditional tower

More dust possibilities and more drift losses than Fanless towers because Fan motor force is there. 

Vibration Level

No vibration

Higher vibration and vibration proof and control are required. 

Internals and Structures

No costly structurals and no internals like fills, etc.,

Heavy type structurals is required being motor system is used and Cooling is achieved only by using internal fills. 

Power Consumption

No fan is required, but higher pumping head is required. But overall power consumption will be very less than that of Fan operated towers

Small pumping head but Fan operation power consumption will be more

Operating & maintenance Cost

All the tower parts are non-moving parts and anticorrosive. No power or consumables required.

Electrical motor maintenance and consumables are unavoidable.