Forward Curved Centrifugal Fan Definition

A forward curved centrifugal fan is characterised by its cylindrical shape and lots of small blades on the circumference of the impeller.

Forward curved centrifugal fan definition.

Along with the radial paddle wheel fan the forward curved fan is one of the select designs that can take the heat. Backward curved centrifugal fans are uncommonly shaped blades which can be curved or straight make these fans excellent for high volumes of airflow and variable resistance. Each fan system has different types of wheels or impeller types. These fans increase the speed and volume of an air stream with the rotating impellers.

Forward curved centrifugal fans are also called blowers. Automobile ventilation is an example where such fans serve both right and left sides of the cabin. A central unit in such industries supplies conditioned air to various enclosures through different ports. These fans are for low to medium static applications.

Such a fan is also called a blower fan biscuit blower or squirrel cage fan. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink. Centrifugal fans use the kinetic energy of the impellers to increase the volume of the air strea. In the example shown below the fan rotates in a clockwise direction.

Forward curved squirrel cage fans are the prime candidates for such applications. Many industrial processes rely on high temperature process heat. High temperature process airstreams require specially designed centrifugal fans that can handle extremely high temperatures. The centrifugal fans with forward curved blades 2l 90 o are designed due to the small dimensions and good static pressure characteristics of fans and such a recommendation refers to the fans.

They utilize a much higher rpm than the rpm found in backward curved centrifugal fans but it s worth noting that they also usually have a lower efficiency. A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. These centrifugal fans are ideal for those companies looking for fans that can deliver medium to high airflow in their facilities. Centrifugal impeller styles forward curve sometimes referred to as a squirrel cage fan forward curve fans are used in most residential and light commercial hvac equipment.

They are often used for industrial purposes.