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Thread: My first attempt at wind power

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    My first attempt at wind power

    Here is my first prototype. It has numerous problems, but I am already working on a newer version. It uses pillow block bearings which spin too hard. It needs more blades to catch more air. The gear ratio for the alternator is too big and the V belt is too stiff making the whole thing too hard to turn in low winds.

    first attempt.jpg
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    great start ,, the bottom of the shaft you would need a tapered bearing running into a race kinda like a wheel and hub design and the top bearing you should use a radial bearing cuz it is just going around,the bottom one is the one that would keep it from flying apart
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    I know you want most power but have you thought of using a simple clutch transmission that would automatically go to a higher ratio in high winds to keep consistant rpm on fan but with enough power(wind) it would turn the alternator faster and produce more wind.......Should be able to find something with little research maybe something from a small quad or kids dirtbike would handle the power then no matter what the breeze you get some power

    IF you wanted to get exotic you could use a A/C type clutch to the transmission and when speed reached peak would disengage (direct drive) and engage (CVT) which would give you good slow and fast wind possibilites if you were to think of a 10' or larger fan and do a great job at giving you a BUZZZZZZZZZ


    Everything would come with a power loss but would help in low and high wind situations

    There is also a way you could use a Hydro Pump off back of BLades to a distribution block to generator that would give you wide posibilities
    Last edited by DistortedPicture; 05-26-2009 at 12:22 PM.
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    use a low rpm permanent magnet dc motor for the generator it is a lot more efficient and requires less wind to turn it you will not need the transmisions etc. A dc motor will generate electicity when turned you will have to put a diode in line so as to keep it from discharging your batteries when not generating it will act as motor and pull the current back out of the batteries.

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    Post rewind

    Very tedious but I once had an article about removing the windings from a car alternator stator and replacing the wire with more turns of a smaller gauge wire.The overall output power was less,but the alternator would start to put out at a lower rpm.I like the ac clutch idea,with sensors the clutch would kick in when the fan speed reaches a certain point.

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    Actually, for a unit this small I would custom build a direct drive generator and voltage regulator. The car alternator would be suited for larger turbines since it is capable of 2Kw output. I will be using 6" PVC blades for my next prototype.
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    Did you ever start a next prototype shad?
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    Shad, no matter what happens with the next proto type your already a winner.....great accomplishment.
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    Good Job Shad:
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    If you could just put that thing in the political threads, you'd get more airflow....

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