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Hydraulic, wind, geothermal, marine energy, biogas ...Vertical wind turbine

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Alain G
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Vertical wind turbine

Unread Messageby Alain G » 28/06/09, 03:17

Hi everybody

While surfing the net, I came across this wind turbine which seems pretty easy to achieve.

It has very little drag and it is possible to vary the opening by tilting more or less one of the two axes.

http://www.youtube.com/watch?v=UfYJPrLRt8c&NR=1

Remondo, tell us what you think. :D
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Remundo
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Unread Messageby Remundo » 28/06/09, 08:53

Hi Alain,

Thanks for the link, I did not know.

It is a wind turbine based on a differential drag. The cinematic concept is very successful.

This wind turbine operates on the impact of the wind with great leverage: it will be high torque, moderate speed, and comfortable at low wind speeds.

But my heart leans for ROBIPLAN :P
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Flytox
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Unread Messageby Flytox » 28/06/09, 14:15

New type of Basque wind turbine.
Chai not what is its performance but it is by far the most beautiful ...

Image

: Mrgreen:
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Reason is the madness of the strongest. The reason for the less strong it is madness.
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
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Remundo
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Unread Messageby Remundo » 28/06/09, 15:19

would it be Basque pelton? :D
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Unread Messageby Flytox » 28/06/09, 15:32

Particularity of the Basque pelton, it returns the balls faster than she received them ... well it depends on who is put to the maneuver.

Li ti not beautiful the off topic hummm ?? : Mrgreen:
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Reason is the madness of the strongest. The reason for the less strong it is madness.

[Eugène Ionesco]

http://www.editions-harmattan.fr/index. ... te&no=4132

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Remundo
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Unread Messageby Remundo » 28/06/09, 16:43

Superb HS Image
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Alain G
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Unread Messageby Alain G » 28/06/09, 16:56

Hello Rémundo!

Indeed the couple in weak wind must be quite interesting, when we know that strong winds are rather rare, it becomes an interesting alternative.

I recently bought a rugged antenna mast of almost 20 meters for my satellite dishes, I think developed a proto on this principle, the mechanical part is relatively easy to realize, it remains to realize the enslavement to close it by big wind but I have my little idea: with the help of a microcontroller and a rotation sensor.

The orientionnelle part can be done by a big rudder or enslaved by motor.
Keeping the bottom axis fixed and rotating the top one only makes it much easier.

I have all the necessary equipment for the realization.

Tell me what you think.

Alain
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gegyx
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Unread Messageby gegyx » 28/06/09, 17:08

And to optimize, even more pointed:

The helicopter rotor.
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Hasardine
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Unread Messageby Hasardine » 28/06/09, 17:22

about helicopter someone would he have a supplier for titanium screws?
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Remundo
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Unread Messageby Remundo » 28/06/09, 17:29

Hello Alain,

I would prefer to avoid servoing the wind direction.

A well placed board will naturally put the machine face the vein of incident fluid, "wind vane way".

For mechanics, I let you judge. Sometimes, one bends to fold the blades whereas to surround them by a cylinder (of the same axis that the mast) sliding can protect them simply.

For some robust vertical rotor, it is enough to just block the rotation and wait for the storm to pass ...

Good cogitations : Idea:
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