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How to Recognize a High-Efficiency Fan

From Moore Fans LLC
 

 
The most important requirement of a fan wheel is that it must impart to the air stream a uniform velocity and pressure over its entire area. Any well-designed axial flow fan wheel is sure to have two characteristics: 1. The individual blades will be narrow at the tip, where the blade velocity is high, and will widen toward the hub, where more blade area is required due to lower blade velocity. 2. The angle of the blades to the plane of rotation will be minimal at the tip and increase as the hub is approached. Only with such calculated width and angle for each point on the blade can the design considerations of uniform velocity and pressure be accomplished.
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Industrial fans and blowers are designed to move air and/or powders in industrial and commercial settings. Typical applications include air circulation for personnel, exhaust or material handling. Search by Specification | Learn more about Industrial Fans and Industrial Blowers
Impellers are rotating devices that force liquids, gases and vapors in a desired direction. They are widely used in pumping, blowing, and mixing applications. Search by Specification | Learn more about Impellers
Industrial cooling systems and industrial cooling equipment includes air-to-air, liquid-to-air, and liquid-to-liquid heat exchangers; ducts and/or pipes; and other devices for removing heat from a system that contains a heat source. Learn more about Industrial Cooling Systems and Equipment
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Topics of Interest
The following discussion describes the basic considerations in efficient axial flow fan design and illustrates features that will assist the reader in recognizing well-designed units. One of the most... (Read More)
Designing the Impeller  Determination of the geometrical features of the impeller is generally accomplished in the following order: a) the “eye” radius re, b) the exit radius r2 or... (Read More)
The question of how large a fan hub should be is commonly asked. The answer is simple: A hub must be large enough to pick up where the blades are no longer able to carry the load. As the radius is... (Read More)
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