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Is it possible...

Discussion in 'Other Power Generation - Wind, Hydro, Geothermal, ' started by Joebwe25, Sep 28, 2008.

  1. Sep 28, 2008
    Joebwe25

    Joebwe25 Yard Farmer

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    ...to transform our decorative windmill into very small power generator for a playhouse?
    If it wouldn't be hard, what parts would I need to get it to run?
     
  2. Sep 29, 2008
    k0xxx

    k0xxx Mr. Sunshine

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    I guess it would depend on what you wanted to operate with it. If it were for something small, say LED lighting for the play house, it wouldn't be too hard.

    The easiest way (I guess, as I'm certainly no expert) would be to use the shaft of the windmill to turn a small permanent magnet motor. Then you would need a voltage regulator of some sort.

    BTW, a good source of permanent magnet motors is to keep an eye out for a powered treadmill being discarded. A lot of the time, the motors are still good.

    I'd recommend doing a Google or a Yahoo search for home built wind turbines to get some ideas.
     
  3. Sep 29, 2008
    FarmerChick

    FarmerChick Super Self-Sufficient

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    key being---"small decorative windmill"---size does matter here..HA HA

    google----"homemade wind turbine" and you hit a slew of ways to build your own. they are not complicated but homemade small ones just don't give alot of power so...??

    good luck and let us know what you accomplish!!
     
  4. Sep 29, 2008
    patandchickens

    patandchickens Crazy Cat Lady

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    You might first inspect it to see how much friction there is in the bearings, and whether it swivels to face the wind (depends on what kind of decorative windmill). If there is significant friction and/or it doesn't swivel, it will take a lot more extensive retrofitting.

    It would probably also be a real good idea to do some back-of-the-envelope calculations on how much electricity you could ideally hope to get out of it. You will need estimates of how often it is turning and how fast it turns when it does (on average, not 'maximum'). Then make some assumption about how much torque it has and figure out what it could do.

    Good luck and have fun,

    Pat
     
  5. Sep 29, 2008
    Joebwe25

    Joebwe25 Yard Farmer

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    It can swivel, but it doesn't that often.
    The thing is always spinning so I thought I we could use the energy rather than let it go to waste.
     
  6. Jan 10, 2009
    Miltonchix

    Miltonchix Sustainable Newbie

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    Windmills are used to charge a bank of batteries. The batteries then have an inverter attached which turns DC voltage to AC voltage.
    Because the speed of the wind is constantly changing, and AC needs to be at a constant amplitude(120VAC) AND frequency (60HZ), running directly from a windmill would burn up most electrical/electronic devices. So windmills are DC generators that feed the batteries which in turn converts the stored energy from the battery to usable AC.
    Converting a decorative windmill to one that would produce usable power would not be practical.
     
  7. Jan 6, 2015
    hibaaryan

    hibaaryan Frugally lurking

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    No...they don't flood out. Even when the breaker on the electric trips it just drains back in to the pond. That is not a concern at all.




    hiba aryan
     
    Last edited: Jan 6, 2015

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