wind generator project

[ruddycrazy]

Hello Guy's an Gal's,

                     I have a couple of 11" diameter cast iron brake disc's and I want to make up a wind turbine, looking on the forcefield site I can get 2"x1"x1/2" neo magnets that would fit the discs beautifully. If I was to place 12 magnets on each disc and use 40 thou diameter enamelled wire how many coils would be best and also how many turns would produce the best output. I can make up some wooden blades easy enough and I was thinking of 10' diameter. I intend using this mill to charge a 24 volt battery bank with the dump load diverted to a water heater. I hope I've provided enough info to help me out.

 All the best ruddycrazy

[wdyasq]

If I am not mistaken, all of this is covered on the Otherpower.com site and of course can be found with a google search of the board.

Cheers,

Ron

[ruddycrazy]

yea I have looked at the otherpower site and I've tried to find other stuff thru search with no avail so if we can go thru the basics on coils etc I will apprecieate it guys.

Cheers

[Flux]

Here's a starting point.

Keep your magnets well out on the disc and try a test coil of 60 turns about 15mm thick. You should easily get 3 of your 1mm wire in hand, if there is lots of space see if you can squeeze 4 in.

If your cut in from the measured coil comes below 150 rpm you can reduce the turns a bit with more chance of 4 wires in hand.

If you measure ac volts on the test coil between both rotors you should get about 3.5v at 150 rpm.

This is for 9 coils 3 phase star connected. gap between rotors about 3/4"

This should suit the prop designs that Dan B used for the 10 ft machines or using Hugh's prop design spread sheet for tsr 7.

Flux