Axial fans are widely used for small cooling fans for electronic gadgets, giant fans used in wind tunnels and various other applications. However, you may be familiar with these because they are typically used for the regular table fan. The blades of these type force air to move parallel to its axis of rotation. This fan’s blades may be flat or curved plates or be shaped with cross sections akin to airfoils that give lift to an airplane’s wing.
There are of three categories, namely, the propeller, tube and vane. Propeller are used for pushing high air volume against low or no static pressure. Meanwhile, tub are those whose propellers are encased in a duct section. On the other hand, vane convert circular, twisting air movement into longitudinal, straight movement. Vane are considered the most efficient fans for HVAC systems.