Fans are used almost everywhere, in both industrial and commercial applications in material handling, ventilators, boilers, collecting dust, and cooling. They are often over-designed, to prevent under-performing, and problems are created that increase operating costs, while reliability is not determined.
Using a centrifugal fan impeller rotates, which moves the air in two directions, the first radially outwards and then tangentially away from the tip of a blade. Centrifugal Fans (It is laso known as “พัดลมแบบแรงเหวี่ยง“ in the Thai language) will typically have one of 6 different types of wheels that pull air into the inlet housing, push the air through the wheel, and throw it at an angle of 90 degrees, through the discharge unit of assembly.
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They are able to produce relatively high pressure as the air moves out of the impeller hub to the blade tip. They are often used in heavy environments that contain high amounts of moisture and duct components.
The wheel is the most important component of the fan and the design determines the performance. The kinetic energy generated by the rotating fan blades used to increase the pressure of the air flow, which is then used to further the resistance of the dampers, ducts and other components.
There are two types of centrifugal fans. They can be installed either inline in the ductwork, or alternatively, they can be mounted on the wall. Sometimes it can be difficult to distinguish from the axial fans, centrifugal fans, but usually there is a big price difference between the two.