subject: Getting To Know Your Biggest Fan [print this page] Although not many people may be aware of it, fans can actually be used in a variety of ways. You can have it for climate control, as a cooling system, for ventilation, drying, and to provide draft. There are even some who make use of a fan as an air freshener by attaching a fabric softener sheet to the protective housing. But how much do you really now about fans?
The use of fan goes as far back as 500 BC when the punkah fans from India became popular. This fan was made from a frame covered with canvass and suspended from the ceiling. A rope was connected to the fan which enables it to swing back and forth when pulled. The first industrial fan, however, first came into being during the latter part of the 19th century when belt-driven fans powered by water wheels were introduced. Wooden or metal blades were attached to shafts overhead. On the other hand, the first American fans were introduced around the late 1890s to the early part of 1920s.
A typical fan is usually made up of a rotating arrangement of blades that act on air. Oftentimes, they are kept on a protective housing or case to prevent objects from coming in direct contact with the blade. Although most fans are powered by an electric motor, there are some that make use of hydraulic motors and internal combustion engines.
The most common type of fan is the axial fans. According to axial fans manufacturers, some of the most common examples of this type of fan include the table fan, the ceiling fan, the automotive mechanical fan, the computer cooling fan, and the variable pitch fan. The axial-flow fans force the air to move parallel to the shaft on which the blades rotate.
Although axial fans are the most common type of fans, axial fan manufacturers state that there are other types of fans such as the centrifugal fan, the cross flow fan, and the bladeless fan. Compared to the axial fan, centrifugal fans are noisier. They are able to produce more pressure for a given air volume and is commonly used in leaf blowers, blow dryers, and inflators, among others.
Finding a reliable axial fan manufacturer can be a bit challenging. Fortunately, there are sites dedicated to providing just that. Whats more, these sites would allow you to read feedbacks from previous clients as well as compare quotations.
