Comments on: How to build a mini wind turbine? http://www.alternativehomeenergy.net/archives/44 Your Source For Alternative Green Energy! Fri, 10 Apr 2009 22:48:59 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: Jorrath Zek http://www.alternativehomeenergy.net/archives/44/comment-page-1#comment-11 Jorrath Zek Tue, 24 Mar 2009 20:39:59 +0000 http://www.alternativehomeenergy.net/?p=44#comment-11 Since you're dealing with a variable energy source (wind), you're best bet is to build a DC generator... Is this a science progect? A DC Generator is the same machine as a DC motor... So if you're building something for your home, then just use a DC motor and a simple belt an pulley to reduce the rotational resistance (or load) on the blades, so a slower wind can be used... For a Science project... Buid three loops of wire and seperate them 60° on the rotor of the wind mill. Place a magnet on either side. north to south Set up "brushes" (chunks of graphite like pencil lead) on either side so that as the rotor spins with the wind, the same side is going to the same terminal + or - no matter which side of the coil it is. Have fun with it...<br><b>References : </b><br> Since you're dealing with a variable energy source (wind), you're best bet is to build a DC generator…

Is this a science progect?

A DC Generator is the same machine as a DC motor… So if you're building something for your home, then just use a DC motor and a simple belt an pulley to reduce the rotational resistance (or load) on the blades, so a slower wind can be used…

For a Science project…
Buid three loops of wire and seperate them 60° on the rotor of the wind mill. Place a magnet on either side. north to south
Set up "brushes" (chunks of graphite like pencil lead) on either side so that as the rotor spins with the wind, the same side is going to the same terminal + or – no matter which side of the coil it is.

Have fun with it…
References :

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