Video-led explanations of fan operation, selection, testing and system behavior for HVAC and equipment engineers.
A squirrel-cage blower does not move air straight through the wheel. T...
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Why can two fan curves show the same airflow but different pressure? T...
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An FEI of 1.25 does not mean 125% efficiency. This engineering walkthr...
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Fan, blower, and compressor are not separated by one universal pressur...
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An EC fan can save energy compared with an AC fan—but there is no hone...
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Both wheels turn in a scroll and both move air outward, yet they suit ...
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Axial and centrifugal fans are not selected by shape alone. This video...
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A plug fan drops the scroll and blows straight into the plenum. That c...
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One large fan is simple. A fan wall adds modules, control options and ...
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Metal is not automatically durable, and plastic is not automatically c...
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