Fans: Overview
What is a fan and how does it work?
A fan is a set composed of a motor and blades whose main function is to displace a gas (usually air) from one place to another.
Which are the main types of fans?
Helicoidal/axial fans
We call them axial fans when the air flow that they generate passes in a parallel direction to its axis. Axial fans can move large volumes of air with very little pressure.
Radial/centrifugal fans
They are called centrifugal fans when their air flow is driven out radially to its axis. We can differentiate them into two major groups:
Centrifugal fans with forward curved impellers
Centrifugal fans with backward curved impellers
Cross-flow fans
In a cross-flow fan the air flow emerges in a tangential direction to its axis.
Where are the fans used? Applications
The fans are mostly used in the sectors of air conditioning, ventilation and heating (HVAC). Their main functions are to renew the indoor air replacing stale air with fresh air or increase air circulation for ventilation or cooling.
Our main applications are:
- Air conditioning
- Ventilation
- Extraction
- Heating
- Air curtains
- Refrigeration
- Wind turbines
- Clean rooms
- Compressed air treatment
- Electrical machines
- Electrical cabinets