Centrifugal fans are very efficient and versatile piece of air moving equipment. Centrifugal fans contain centrifugal fan blower with a centrifugal fan impeller and scroll housing and that housing accelerate the air and changes the direction of airflow two times, a full 90 degree before leaving the house. They are reliable and made in a way so that they can operate in a variety of environments and applications.
Centrifugal fan blade:
- Radial: The pressure of these fans is high and medium airflow. These fans are used when there is gas or moisture in the air.
- Forward curve: The pressure is medium and airflow is high and they are used in the cleaning of air, ventilation, and exhaust applications.
- Backward curve: These fans have high pressure, high efficiency, and high flow, and when power is reduced the flow rate will increase.
- Airfoil: These fans are used for cleaning the air and the efficiency of these fans is high.
Centrifugal Fan Theory: To choose the correct fan we should have complete knowledge about the pressure requirement. When we have a more complicated and lengthy duct system then its power requirements are also high. Usually, we have two drive systems in centrifugal fan which are:
Direct Drive: direct drive system mainly used for smaller blowers and also offers lower cost with reduced maintenance and greater reliability.
Belt Drive: belt drive has uses in the application of large blowers when they are equipped with a variable frequency drive.
Centrifugal Fan Efficiency: Centrifugal fan efficiency is the ratio between power transferred to airflow and the power used by the fan.
Motor efficiency used:
- Motor 1.337 hp
- Motor 13.41 hp
- Motor 134.10 hp
Centrifugal fan impeller wheels
Mainly we have 8 types of impeller wheels which are:
1) Shrouded radial wheel
2) Open radial blade
3) Open paddle wheel
4) Backward inclined
5) Airfoil blade
6) Forward curved multi-vane
7) Backward curved radial
Centrifugal fan application:
- Used in Dust Collectors
- In Paint Booths
- In air conditioning
- For high-pressure applications
Centrifugal fan advantages:
- Energy efficient
- Durable
- Can restrict overloading
- Versatility is high
- Maintenance is easy
Centrifugal vs. Axial fan:
Centrifugal fan | Axial fan |
The flow of air is Radically | The flow of air in the axial direction |
Airflow is directed through a system of ducts or tubes | Create a large volume of airflow |
Power input is high | Low power input |
High-pressure airflow | Low-pressure airflow |
Flow rate is low | High flow rate |
About Our Company:
Blast Rooms are the manufacturer of all kind of Sand Blasting machine and Blasting cabinet. We also manufacture different blasting machine-like Shot Blasting Machine and Grit Blasting Machine. Rather than blasting machines we also manufacture coating equipment such as Thermal Spray Gun on-demand. We also supply all types of Abrasive Media at the best price and with great quality assurance.
