Fan efficiency should be judged wire-to-air — from electrical input to useful air power — not from motor nameplate alone. Articles cover FEI metrics, part-load behaviour, annual energy calculation and the design factors separating premium EC platforms from commodity fans.
Forward-curved and backward-curved centrifugal fans can share a diamet...
Read More »
How do radial, forward-curved, backward-curved and airfoil centrifugal...
Read More »
An FEI of 1.25 does not mean 125% efficiency. This engineering walkthr...
Read More »
Both wheels turn in a scroll and both move air outward, yet they suit ...
Read More »
Why can a backward-curved centrifugal fan run quieter at the same airf...
Read More »
How do you use a fan performance curve to select the right fan? This e...
Read More »
Size a fan motor from the real duty point—not from CFM alone. This wor...
Read More »
Arrays are often sold as more efficient than a single large fan. On pu...
Read More »
A fan curve only means something when you know how it was produced. Th...
Read More »
Pitch is the single strongest lever on axial fan performance. Increase...
Read More »
Recent Comments