The centrifugal fan design is known for taking air and throwing it perpendicular to the rotor's axis. This design comes as smaller centrifugal fans and bigger DC Blowers based on the same design.
There are multiple differences among the DC blowers and fans based on centrifugal technology.
The first major difference between a centrifugal blower and a fan is its size and construction. The fan is usually a smaller unit, and it comes with thin blades. On the other hand, the blower is a bigger unit, and it comes with wider blades running on the rotor.
So, while the main working principle of using centrifugal force remains the same here, the size and, most importantly, blade width is the difference between both. In both cases, the blades move and push air perpendicularly.
Next up is the motor requirement. It is also bigger for the blower since it is bigger. With the bigger size and blades, the DB blowers use bigger motors that can put off more power than the fans. The fans with thin and small blades do not need a huge motor.
They can perform very well with a small motor as the blades are lightweight. This difference also makes centrifugal fans an electrical device, while centrifugal DC blowers are more mechanical.
Air volume and pressure are also different among these. Say that the centrifugal blower moves smaller fan blades with a small motor. Not only will its air volume be less than the centrifugal blower, but the pressure will also be lower.
That’s why a centrifugal fan is used for smaller applications while a blower is utilized for bigger applications. The fan offers low to medium airflow, volume, and pressure according to the requirements, but the blower gives a steady and powerful air flow.
The power consumption varies depending on the size. For example, the centrifugal fans inside laptops only work on a few milliamps of current with voltages as low as 5 volts. On the other hand, you will find that centrifugal blowers use higher voltage and more current. It is because more power is required to move the bigger and heavier blades; hence, we get more pressure from their running.
Centrifugal fans are usually used in smaller applications. These are commonly found in small devices like gaming consoles, laptops, and tablet computers; even smartphones have these fans for cooling purposes.
Regarding centrifugal blowers, they can carry in size; hence their applications vary. The smaller ones are used for domestic air ventilation and HVAC purposes. On the other hand, the bigger units make a good choice for industrial applications.
DC Blowers serve to cool multiple appliances and devices, but you must select the right size for the best performance. You can find out from a long list of options differentiating on these fans' size and performance figures.
