The mechanical fan canvas covered frame “punkahs” from the ceiling hung a first appearance in the 1500s. In order to produce a cooling effect, which is attractive waitress is a cable that connects to the frame, move the blower around by it. Supplied by the fan belt-driven water wheel of the works were produced in the 1800s. Electric fan, are introduced to the general public of electricity. Fan improved lifestyle because they are equipped with a functional and stylish cage and brass blades.
Mass production of the electric fan is a by modern industrialization was achieved in 1920. When AC was widely available in the 1960s, sales of fan has slowed. The fans have resurged in popularity and for a moment, they are being used in many parts of Europe and Asia, yet widely. Enhance the decor of the house, they are more practical design features are not used. Because the air is less than the cooling power provided by the air conditioning, electric fan they are used as an additional cooling device for cooling the body often. You can use the add function electric fan ventilation, exhaust or gas transport.
Three types of technology that can be used for air flow of the fan that moves the axial direction, the radial and cross-section. The axial flow is to use a method of conditioning, fans are used to comfort and ventilation. In order to rotate the blade around it, while blowing on the axle of the fan, move parallel to the axis of the blade, was forced to air. In some applications, axial-flow cooling is used in the personal stuff a big fan generally found in the wind tunnel and personal desk fan. Wave electric wire fan base basic components, fan blades, and anchor, motor, blade guard, motor housing, oscillator gearbox, and oscillator. Evaluation of the electric fan is determined the size of the blade, type, depending on the number. Are formed in order to determine the price that can be used for the parts of the fan material. Most fans have four blades. As used for convenience, the fan does not actually lower the temperature. They create the effect of wind chill.
There is a fan of many different design. The fan can be or have been built chimney hanging from the ceiling to windows, walls, and roof, placed on the floor or table. In order to cool the internal circuit of such a computer, an electric fan is used in electronic systems, such as a hair dryer or heater.