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Wind Generator Design

Discussion in 'Renewable Energy' started by Krumlink, Nov 3, 2007.

  1. mneary

    mneary New Member

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    Your HS robotics battery is capable of providing high current for only a short time. Remember, the actual competition was 2 minutes, 10 seconds.
     
  2. Leftyretro

    Leftyretro New Member

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    There are special NICAD batteries that can supply tons of current, used in R/C models for high performance motors.

    Just a standard NICAD 'D 'cell is rated at 4 amp/hrs I seem to recall.

    Lefty
     
  3. Hero999

    Hero999 Banned

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    You want more than a few Ah which is what a typical AA NiMH cell can provide. You need a couple of hundered Ah at the very least.
     
  4. dave

    Dave New Member

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  5. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    So does everybody else in the world - solar power, wind power - you use lead acid batteries, end of story really!.
     
  6. Krumlink

    Krumlink New Member

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    Besides, the most amount of watts I would be using at any one time would probably be a max of about 200Watts.

    I need a way to generate the voltage now
     
  7. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    As you suggested in the first place, a car alternator is an easy place to start.
     
  8. Krumlink

    Krumlink New Member

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    How much would you think it would cost for a cheap one? I will have to check it out.
     
  9. Hero999

    Hero999 Banned

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    Nothing, go to a scrap yard.

    Also note that car alternators aren't very efficient.
     
  10. kchriste

    kchriste New Member Forum Supporter

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    A better solution than a car alternator would be to use a larger DC permanent magnet motor as a generator. If you want to use stuff from old cars, a radiator cooling fan motor may provide enough current as a generator. Years ago I made a windmill out of an old computer tape drive motor (Think large 1970s computer). I think the motor was designed to run from 24-48V so it put out 12V @ 10amps quite nicely at low RPMs.
     
  11. Boncuk

    Boncuk New Member

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    Good point! WIMA has developed a capacitor not too big around with a capacity of 400F!
    A 500F type is under development. One disadvantage they have: Charge is limited to 2.5V

    The massive capacitor bank could be the garage filled with capacitors from bottom to top. :)
     
  12. Boncuk

    Boncuk New Member

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    better feather the prop!
     
  13. David Zheng

    David Zheng New Member

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    Please review the picture.
     

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  14. Krumlink

    Krumlink New Member

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    My local laws prohibit me from erecting a wind turbine, so I can't :D
     
  15. erosennin

    erosennin New Member

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    ...
    So what are you going to do, put a ceiling fan on a 3' concrete pole???:rolleyes:
     

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