"CFM" calculation question

johnn Posted By johnn, Feb 28, 2009 at 2:57 AM

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  1. johnn

    johnn
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    Dec 8, 2008
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    Is it possible to compute approximate CFM output by measuring the size of the fans on a double squirrel cage and the motor size and rpm`````````s???

    supply houses are closed now,,and there seems not much new going on,,,anybody??
     
  2. TMonter

    TMonter
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    Feb 8, 2007
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    Not really unless you know the wheel characteristics of the fan. Do you have a fan model number?
     
  3. johnn

    johnn
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    Dec 8, 2008
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    I may be able to have son pull fan ass. off insert downstairs,( same manufacturer). The rating tag on motor on the unit upstairs is hard to read, however I believe it only contains motor info.My leg is kinda BROKE, so I will have to rely on my son to do the leg work for me. I`ll post later with info.. Thanks
     
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