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    pradhy's Avatar
    pradhy Posts: 1, Reputation: 1
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    #1

    Mar 31, 2011, 06:34 AM
    Ceiling fan working?
    How is flow rate of air through a ceiling fan compared to its speeed of rotation?
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #2

    Mar 31, 2011, 07:16 AM

    The rating is in CFM (Cubic Feet per minute).
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Mar 31, 2011, 01:02 PM
    Donf is right with the CFM. However, it sounds like you are also asking about speed. Obviously the CFM increases as the fan goes faster. If you have a close fit fan, CFM is lower when blowing up due to air pressure. Bigger diameter fans= more CFM. Impossible to tell you how many CFM per speed since each fan brand speed is different.
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