It seems surprising that do really Blade
less fans exist ? If it exist, how do they work?
First
of all, Blade less fan consists of a impeller in the bottom casing which is
seen in the picture above. This will suck the air from the surroundings and
this get purified through a set of filters. The impeller is powered by a motor.
The total casing which consists of fan and motor, filter is well sealed and
insulated such that no sound comes out it, there by it become noise less and
smooth operation.
Then the air is passes through pipe of
aerofoil shape. As the opening is less, the velocity of the air increases and
when it completes it travel in the aerofoil opening , the air will gain much
more velocity due tot he shape of the opening.
Then the air is released to surroundings.
At this time, the air with higher velocity moves out creating a suction on the
other side. This again works like a vacuum pump. As the unit is not having any
exposed moving parts, therefore it is safe even for children. It makes less
noise when compared to fans in our home. The velocity and the amount of air it
draws and supplies is very high.
Date : 19/02/2016
Date : 19/02/2016