Building a VERY small scale wind generator?
I am trying to build a small wind turbine with enough power to light a 5 watt bulb.
Basically, I was planning on just connecting some 3in. fins to an electric motor from a hobby store (see http://www.radioshack.com/product/index.jsp?productId=2102828&cp=&sr=1&origkw=motor&kw=motor&parentPage=search ) and then hooking the electric motor up to a light bulb – will this work? Are there any issues that I have ignored?
Thanks!
“8700+/-12% RPM at no load, 5800+/-12% RPM at max efficiency speed”
May be a bit faster than you could get with 3 inch fins. You could use gears (the big ones do) but then gearbox friction might keep it from turning at all
To light a 5W bulb, you will need more than an amp from the motor. I suspect the wires inside the motor may not be that big.
An LED might take less amps.
http://www.otherpower.com/toymill.html#danf
has more information, and proposes that *some*
computer fan motors work well.
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