Introduction
Centrifugal fans, also known as blowers or squirrel cage fans, are vital components in ventilation, air conditioning, and industrial applications. They work by converting rotational kinetic energy, typically from a motor, into airflow. In this blog, we’ll explore their design, types, working principles, benefits, and applications.
???? How Do Centrifugal Fans Work?
Centrifugal fans operate by drawing air into the center of the fan and then accelerating it outward through centrifugal force. This is achieved through:
- Impeller blades that rotate to generate airflow.
- Inlet and outlet ducts that direct the movement of air.
- Housing (scroll casing) that guides air efficiently and increases pressure.
The fan impeller draws in air axially and expels it radially, increasing both pressure and velocity.
???? Types of Centrifugal Fans
- Forward Curved Blades
- High airflow, low noise
- Ideal for HVAC systems, air conditioners
- Backward Curved Blades
- Energy-efficient, higher pressure
- Used in industrial processes, exhaust systems
- Radial Blades
- Robust and resistant to clogging
- Best for material handling and dirty air applications
✅ Benefits of Centrifugal Fans
- High Pressure Output: Excellent for duct systems and resistance-heavy environments
- Durability: Strong design, suitable for industrial settings
- Customizable Designs: Blade orientation, material, and size can be adapted
- Noise Control: Often quieter than axial fans when properly housed
???? Conclusion
Centrifugal fans are the backbone of efficient airflow systems across industries. Whether for cleanroom ventilation or factory exhaust, understanding their design and function ensures optimal performance and energy savings.
