Wind: building a vertical axis wind turbine from A to Z

Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, energy from the sea, hydraulic and hydroelectricity, biomass, biogas, deep geothermal energy ...
technosup
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wind turbine




by technosup » 01/04/06, 19:04

this wind turbine that you offer, is the exact copy
of that which was presented in the bricothéme, in itself nothing new. : Arrow:

But, for those who haven't read it, it's a good idea. : Cheesy: : Cheesy:
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vincent27
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by vincent27 » 01/04/06, 19:59

For a horizontal axis wind turbine, making polyester blades is quite simple, but someone has found the plans for the new blade shapes (not very noisy and self-regulating in rotation speed (whatever the wind speed).
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Choban
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by Choban » 01/04/06, 21:43

vincent27 wrote:For a horizontal axis wind turbine, making polyester blades is quite simple, but someone has found the plans for the new blade shapes (not very noisy and self-regulating in rotation speed (whatever the wind speed).


See a little higher, you will find a more than satisfactory doc!
Good job, Choban
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vincent27
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by vincent27 » 01/04/06, 21:59

I was looking more on the HORIZONTAL axis.
The new large wind turbines have fixed blades that regulate themselves in speed. They are slightly curved backwards at the point.
We look forward to seeing you!
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OlivierD
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by OlivierD » 11/04/06, 14:58

On vertical axis wind turbines, don't forget to visit http://www.gual-industrie.com
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renaud67
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by renaud67 » 11/04/06, 16:45

there are also maps around here http://perso.wanadoo.fr/andrews/
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abyssin3
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by abyssin3 » 11/04/06, 17:58

It is true, for the weight of the steel blades, it is a loss of performance (harder to train, heavier therefore more friction).

Wouldn't it be better to make them out of wood or plastic (lighter)?

What is more, with a little imagination, one could imagine plastic blades that take off from their support from a certain wind speed (a bit like the hydroptere). From there, less friction, better efficiency = more electricity.
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electron
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vertical wind turbine




by electron » 30/04/06, 00:26

why not make them out of PVC plate, a material very easy to mat, there are with exterior treatments and a plate from 4mm to 6mm there would be good resistance.
To watch them, you just have to heat them with heating bars. I worked with plastics manufacturers who produced sets of different shapes with exemplary ease. The only drawback of PVC is that it breaks during a shock, but tolerates distortions well.
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Castor
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by Castor » 30/04/06, 13:50

Hello

For vincent27: I have a PDF doc on another type of wind turbine with vertical axis if it interests ...
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by nytros » 30/04/06, 15:15

I am also interested in your pdf. Could you post the link or send it to me please?
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