Ceiling fan is a mechanical fan, usually electrically powered, suspended from the ceiling of a room that uses hub-mounted rotating paddles to circulate air.
Most ceiling fans rotate much more slowly than most electric desk fans. Those cool people effectively by blowing the movement of hot air of a room. Fans never actually cool air, unlike air-conditioning equipment, but use significantly less power (cooling air is thermodynamic-ally expensive).
Ceiling fans helps in creating air breeze around our bodies and enhances body (convective) heat transfer. This is because the blades of a ceiling fan are pitched out of plane slightly. As a result, when the fan spins, the blades push air either up towards the ceiling or down towards the floor.
Every fan needs a motor that allows rotational motion. Ceiling fans have a stationary armature and the motor moves in the counter-clockwise direction. Since, the blades of the fan are attached to the motor; the ceiling fan rotates in an anti-clockwise direction.
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