Centrifugfläktar

Centrifugfläktar, also known as centrifugal fans or blowers, are mechanical devices used to move air or other gases. They operate by using a rotating impeller with blades to impart kinetic energy to the gas. This energy is then converted into pressure energy as the gas is discharged. The impeller is typically housed within a scroll-shaped casing.

There are several types of centrifugal fans, distinguished primarily by the design of their blades. Forward-curved blades are common for low-speed, low-pressure applications and are known for their quiet operation. Backward-inclined or airfoil blades are more efficient and suitable for higher pressures and air volumes. Radial blades are robust and can handle dusty or dirty air streams.

Centrifugal fans find widespread use in various applications. They are integral to HVAC (heating, ventilation, and air conditioning) systems for air circulation and conditioning in buildings. In industrial settings, they are used for material handling, fume extraction, drying processes, and cooling. They are also employed in smaller appliances like vacuum cleaners, hair dryers, and computer cooling systems. The selection of a centrifugal fan depends on factors such as the required airflow rate, static pressure, efficiency, noise level, and the properties of the gas being handled.