Forward Curved Centrifugal Fan Definition

Such a fan is also called a blower fan biscuit blower or squirrel cage fan.

Forward curved centrifugal fan definition.

These fans increase the speed and volume of an air stream with the rotating impellers. A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. A double outlet centrifugal fan has a volute with two outlets. Centrifugal fans use the kinetic energy of the impellers to increase the volume of the air strea.

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 fans. 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. A central unit in such industries supplies conditioned air to various enclosures through different ports.

Forward curved squirrel cage fans are the prime candidates for such applications. 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. These fans are for low to medium static applications.

These centrifugal fans are ideal for those companies looking for fans that can deliver medium to high airflow in their facilities. 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. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink. High temperature process airstreams require specially designed centrifugal fans that can handle extremely high temperatures.

Many industrial processes rely on high temperature process heat. They are often used for industrial purposes. Each fan system has different types of wheels or impeller types. Forward curved centrifugal fans are also called blowers.

In the example shown below the fan rotates in a clockwise direction.