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Non-Tech : Alternative energy -- Ignore unavailable to you. Want to Upgrade?


To: Eric who wrote (5560)11/15/2008 11:52:47 PM
From: Cogito Ergo Sum  Read Replies (1) | Respond to of 16955
 
Thanks, When you mentioned.. Try to keep tip speed below speed of sound.. I have the impression the goal is far lower actually and that you were suggesting that as a regular limitation.. ..One of the first turbines in Canada is at Pickering Nuclear plant which I can see from my home when I walk the dogs down by the lake (or go to the mall :0) One of the most asked questions from the public in the early days (it's been many years now I guess) was Why is it always off when it is windy

Of course anyone that has flown a kite knows that answer :O)

The Black Swan



To: Eric who wrote (5560)11/16/2008 3:44:04 PM
From: Doren  Read Replies (1) | Respond to of 16955
 
It seems to me that there might be a lot more potential for a break through design in this area. (Unlike the solar panel area.)

The vertical egg beater design was an interesting attempt. I've skimmed through a couple of books on the subject. It's quite interesting the pros and cons of each design. My guess is someone will figure it out, just as we figured out how to exceed the speed of sound.

especially the gearbox and generator!

One would think that geared transmission would help here. I'm thinking that if bicycles can shift automatically then why not windmills?

The torque forces have to be unreal on some of those biggies, not to mention harmonic feedback loops.