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Quietest home wind generator?

Discussion in 'Home Power and Microgeneration' started by Gymmy Bob, Nov 13, 2004.

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  1. Gymmy Bob

    Gymmy Bob Guest

    Anybody give information on the noise of a 500-1000W windmill?

    The specs never state the noise they produce. I have been told the Lakota
    units are pretty quiet in comparison
     
  2. Ecnerwal

    Ecnerwal Guest

    I suspect that the variations on Savonius rotors might be relatively
    quiet, since they are relatively slow (tip speed below wind speed).
     
  3. bw

    bw Guest

    Thats because there are so many variables. There are no "standard noise"
    conditions to compare anything to.
    From reading homepower magazine and personal observation.

    For the same power production, you want the machine to be
    larger, higher and slower RPM. More blades causes lower RPM.

    Modern big ones are almost impossible to hear when standing directly under
    them.
    I made a twin blade about one meter diameter that sounded like nothing else
    I've ever heard it was so loud. airfoil does make a difference, modern high
    tech airfoils are designed to be quieter.
     
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