Centrifugal fans build pressure by accelerating air outward through a rotating impeller, making them the workhorse for HVAC air handlers, cleanrooms, dust collection and process ventilation. Articles under this tag cover working principles, backward vs forward curved impellers, performance-curve reading, selection math and maintenance practice, with LONGWELL AC/DC/EC centrifugal fan data for reference.
Surge is what happens when a fan is pushed too far left on its curve. ...
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Airfoil blades reach the highest static efficiency of any centrifugal ...
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The scroll does half the work in a centrifugal fan, and the cut-off de...
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The inlet cone is a cheap pressing that decides how cleanly air enters...
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Mixed-flow fans sit between axial and centrifugal, delivering roughly ...
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A double inlet wheel takes air from both sides, roughly doubling airfl...
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A plenum fan blows into the cabinet rather than into a scroll. That co...
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Thermal management has become the engineering challenge in dry-type tr...
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Read how we adapted a 230V EC centrifugal fan for a commercial unit. W...
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Centrifugal fans are widely used in AHUs, ventilation equipment, and H...
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