What is the Difference Between Fan and Blower?

The main difference between a fan and a blower lies in their functionality, specifically in terms of pressure and airflow. Here are the key differences:

• Fans are electrical devices that move air and create a flow within a fluid, such as air. They typically have blades or vanes that rotate, acting on the air and producing air at low pressure. Fans circulate air throughout a defined space and are usually powered by electric motors, but sometimes they can use hydraulic motors or internal combustion engines as well.
• Blowers are mechanical devices that consist of a fan, a channel, and an inlet and outlet. They direct air to a specific point or in a particular direction. Blowers operate at moderate pressure, with an air pressure ratio of 1:1.1 to 1:1.2. They are used in situations where the system resistance is higher than that for a fan, such as moving air through ducting.

In summary, fans are designed to circulate air throughout a space, while blowers focus on directing air in a specific direction and operate at moderate pressure.

Comparative Table: Fan vs Blower

Fans and blowers are both used for air circulation and cooling, but they differ in terms of functionality, applications, and performance. Here is a table outlining the differences between fans and blowers:

Fans are electrical devices that move large volumes of air with little to no change in air pressure, while blowers operate at moderate pressure and direct air in a specific direction. Understanding the differences between fans and blowers can help optimize performance and energy efficiency in various applications.