windmill just completed- rfc

Posted by developer on October 11, 2004, 5:21 am

http://www.web7days.com/hydro/windmill/

any comment

Posted by Richard on October 11, 2004, 6:17 am

Looks nice, but what do you use for overspeed protection? And I was wondering
if the alternator
(that's an automotive one, right?) puts out at 100 to 300 rpm? Just curious as
I would like to try
getting into some windpower.

Posted by developer on October 11, 2004, 4:44 pm

wondering if the alternator

curious as I would like to try

overspeed protection has been under consideration. yes, it is a alternator.
700 W at 12V/24V I do not recall

Posted by A Clarke on October 11, 2004, 4:38 pm

   I have another idea for your hydro generator;
   Because you have fast moving Water BUT no height with it;
   Put a long Snake (like China Dragon) in a Pipe which moves
like a Snake and have just one or two pieces of Rope comming
out of the end to a Cam Wheel. The Rope should move in and
out of the Pipe like a connecting Rod to a Piston.

   Nice Photographs.

   I wish I had as much time to construct as you but I am too
busy working here in England!

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Ashley Clarke
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Email: ashley@a-clarke.demon.co.uk
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Posted by Mark on October 11, 2004, 6:35 pm

How high above ground is the wind turbine?

Looks like too many blades. How do you balance these blades?

Why not put though main blade shaft on a gearing system to make alternator
shaft spin at higher RPM while blade shaft is at lower RPM?

You should aim for minimum and maximum limits for alternator's shaft speed
according to manufacturer's recommendation.

Overall looks like good project.