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#11
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On Fri, 17 Mar 2006 15:47:08 -0500, T o d d P a t t i s t
wrote: clare at snyder.on.ca wrote: Propellers can't be used as wind turbines (at least not efficiently) because they're turned the wrong way. So you turn them around. Flat side to the wind, fat side to the wind. As someone else pointed out, you can't just "turn them around." First, you have to reverse the pitch, which you can only do on a limited number of props. Second, even if you reverse the pitch, the twist is wrong. You'd need to reverse the twist too, and that is something you can't do. It might still work, but probably not very well.. With the exception of the twist, it was all possible. I knew I had to be missing something, and I'll dig the prop out tomorrow and confirm. *** Free account sponsored by SecureIX.com *** *** Encrypt your Internet usage with a free VPN account from http://www.SecureIX.com *** |
#12
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On Fri, 17 Mar 2006 11:31:11 -0800, Dan_Thomas_nospam wrote:
It occurred to me that the blade's twist would be all wrong for the wind turbine application, anyway. The blade would have to turn a lot to get the root to the right angle, and by that time the tip would be close to feathered, just the opposite of what we need. I have sort of reinvented the windmill. If you are interested. |
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