As the name says, Fandis is definitely an expert in fans and ventilation, and we often have to do some clarity on the different types of fans and how they work.
Why prefer a centrifugal fan or a cross flow fan? Or what is the difference between a radial and an axial fan? Here is a small guide.
It’s the fans that we think on in summer days. The air moves parallel to the motor shaft, long, therefore, its axis, and that’s why it’s called so.
In addition, to preserving us from the heat, also serves as suction and has the advantage that it can be installed in confined spaces, as in the case of an electric panel, a snack distributor…
Even here, the air is drawn in parallel to the motor shaft, but thanks to the blades positioned in a different way compared to an axial fan, this is diffused in a radial way, running perpendicular to the motor shaft.
The general applications for radial fans could be in air conditioning systems, in printing machines (eg. presses) and in the roof exhaust units.
Similar to the radial fans, with the air flow that is diverted from the motor shaft, they are the centrifugal fans. In this case, the fan is placed in a structure called a “scroll”, able to condition the flow in a precise direction and to increase the pressure, to the detriment of the flow. They are primarily used in heating (fireplaces), in the field of cosmetics (sunbeds and sunlamps), in hoods, ceiling fan coils and in air filtration treatment units.
The last type of fan is different from others because the air enters in a perpendicular direction to the motor shaft, and it’s deflected by the fan blades and expelled.
This type of fan has many applications within the floor heaters, in pellet stoves or hoods, or in the “wall of air” that you encounter in entering some shops or malls.
They are preferred for their low noise like the power, and then starred in workplaces and the homes.