An electric fan is a blessing of science. During summer when
we feel hot an electric fan with its artificial winds refreshes us and makes cool.
An electric fan is simply an electric motor to which the blades are fixed so
that when the motor of the rotates the blades spared the air. There are three
different types of fans. These are(1)D.C table fan or ceiling fan,(2)A.C table
or ceiling fan, (3)A.C/DC table or ceiling fan. There is some different in the
mechanism of A.C fans form that of D.C. The rotating port of the A.C fan is
called rotor. And the stationary part of A.C .fan is called a starter or armature.
The speed of the fans is controlled by a
regulator. The main element of an electric ceiling fan are blade ,shank, motor,
black cover, head bolt .upper cover , capacitor, housing, split pin, hanging
rod etc. Now-a-days pedestal fan box fan and many other fans are generally used
.thus it is a great achievement of science. A electrical fan is a machine used
to flow within a fluid typically a gas such as air . The fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it is contained
within some form of house of case . This may direct the airflow or increase
safety by preventing objects form contacting the fan blades .most fan are
powered by electric motors , but other sources of power may be used. Electrical revolving blade fans are
made in a wide rang of designs.Ina home you can finds fans that can be put on
floor or table, or hung form the ceiling or are built into a windy. Basic
elements of a typical table fan blade base, armature angled motor blade motor
housing etc. Fans products air flow with high volume and low pressure, as
opposed to compressors which product . high pressure, as opposed to compressors
which produce high pressure ate comparatively low volume. A fan blade open rot
at whine exposed to an air stream, and devices that take advantage of this such
as often
has designee, similar to that of a fan design .The industrials
revolution in the late 19th censure is built by in centrigul fan between has in 1998walter kobold invented HVLS calling
fan. Lifelong inventor boyar invented the HVLS calling difference in air temperature will affect
density of air and can be used to induce
air circulation through the mere
air mass this effect is so subtle and work at such law air pressures
that it does
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not appear to fit the definition of a fan technology however point
to the development of electric , can vocative
air flow was the primary method of including air flow in living spaces old
fashioned oil and cool furnaces were not electric and operated simply on the
principle of conversation to move the warm air. Outhouse commonly relying
simply enclosed air channel in a corner of the stricture to exhaust offensive odors
.
