Principle: The energized coil is forced into the magnetic field to rotate the fan blades. The form of energy conversion is: electrical energy is mainly converted into mechanical energy. At the same time, because the coil has resistance, it is inevitable that part of the electrical energy will be converted into thermal energy.
When the electric fan works, because there is current passing through the electric fan coil and the wire has resistance, it will inevitably generate heat and release heat to the outside, so the temperature will increase. There is a lot of sweat on the surface of the human body. When the electric fan starts to work, the air in the room circulates, which can promote the rapid evaporation of sweat. Combined with "evaporation must absorb a lot of heat." ", people will feel cool.
Detailed information:
The mechanical fan was born in 1830 An American named James Byron was inspired by the structure of the clock and invented a fan that could be attached to the ceiling using a spring. mechanical fan. The cool, slow breeze brought by the rotating blades of this fan makes people feel cool, but it is difficult to climb a ladder to climb back up.
In 1872, a Frenchman named Joseph developed a mechanical fan started by a mechanical turbine and driven by a gear chain device. This fan was much more sophisticated than the mechanical fan invented by Byron. also more practical.
In 1880, the American Schuller first installed the blades directly on the motor and then connected it to the power supply. The blades turned quickly and a cool breeze blewit. It was the world's first electric motor. fan.
Baidu Encyclopedia - Fan
Baidu Encyclopedia - Electric Fan (Electric Appliance)
The frequency and voltage of the wind power generator are always constant The power and current generated by the fan blades increase when the fan speed is accelerated, and the power and current generated by the fan blades when the fan blade speed slows down decreases.
Wind power generators generate alternating current and do not need to be stored when operating on the grid. There is more absorption online and less replenishment online. If there is no grid-connected operation, the alternating current must be converted to direct current and stored in the storage battery. The storage battery must then be converted to alternating current for power supplyric. The storage battery stores the battery when it is long and. Replenishes the battery when it is short to ensure the user's electricity.
Using battery storage is a powerless approach that cannot be connected to the grid. When conditions permit, using battery storage increases the cost.