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Anonymous Poster

Centrifugal Fan Operating Point on Performance Curve

05/06/2009 2:46 PM

I have a centrifugal fan along with its performance curve and the curve has design point where it is supposed to work at a specific flow and specific BHP .But this is design data, how can I find the actual working point of this fan on the performance curve. This fan is in operation what and how should I measure any specific parameter in order to find the current working point of this fan.

Appreciate the help of the folks

Thanks

Jack
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Anonymous Poster
#1

Re: Centrifugal Fan Operating Point on Performance Curve

05/06/2009 4:22 PM

Drill a small hole (holes) in the discharge ducting near the fan and get pressure (pitot) measurements (may want to get someone experienced with gridding/averaging) - you will then have the exact operating point on the curve.
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lyn
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#2

Re: Centrifugal Fan Operating Point on Performance Curve

05/06/2009 5:33 PM

If you have the performance curve, measure the motor load in your application and lay it on the curve. Should be relatively simple. Amps vs output.
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The Prof
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#3
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Re: Centrifugal Fan Operating Point on Performance Curve

05/06/2009 10:01 PM

A combination of reply 1 and lynlynch in reply 2 is best. One measurement will verify the other (within the accuracy limits of the measurement).

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