It is quite possible to do this by using a fixed-magnet extra-low-voltage motor, and a large-enough propeller attached to the shaft. Once the propeller is in the airstream and rotating, some current can be drawn from the motor terminals.
By stripping a suitable motor from a redundant motorised toy, for example, there is good scope for personal experimenation locally.
Following experimentation, the paramaters affecting the equipment's performance can be evaluated as a basis for improving future designs. Perhaps it could be the basis of a school science study project?
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My son and I made a wind generator for a science project when he was in middle school. It was basically a bicycle light generator, belt driven buy a really big fan that we made. We used it to charge a marine battery, to power garden lights. It actually worked. He took first place, (the teachers ate up the eco-friendly, non-polluting slant).
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wind generator
Re: wind generator
