Wind turbine, size and building permit

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gegyx
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by gegyx » 09/02/07, 15:21

: Shock: INACCURATE ...

We have already talked about it.
Type a Google search! And it's written everywhere:

“The height of the installation is defined as that of the mast and the nacelle, excluding the size of the blades. "
http://www.carrefourlocal.org/vie_local ... ienne.html

In a more official document, the height to consider is on page 7 of this pdf:
http://www.loire-atlantique.equipement. ... 76b825.pdf
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jonule
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by jonule » 09/02/07, 16:59

so much for me and thank you!

so we can mount a 12m mast and 10m blades? : Mrgreen:
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zac
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by zac » 09/02/07, 18:15

jonule wrote:so much for me and thank you!

so we can mount a 12m mast and 10m blades? : Mrgreen:


yes even 15 meter for the blades (by digging a hole) : Lol: : Lol: : Lol:

@+
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by pluesy » 09/02/07, 22:54

by pushing the reasoning of zac to the extreme, we can even place a propeller of 80 meters in diameter (5000 m2) with the axis at 12 meters high : Shock:

and hop more than 2500 m2 of wind turbine surface in all legality ... : Cheesy: : Cheesy: : Cheesy:

but hey having a wind turbine that produces nearly 2 megawatts every day is a bit ridiculous for an individual ... : roll:
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by bolt » 09/02/07, 23:09

at the edge of a cliff, there wouldn't even be a need to dig
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by Other » 09/02/07, 23:35

Hello,
If the masts are so high there are several reasons
first the intensity of the wind increases above the friction layer of the earth
and the main one is to seek layers of less turbulent air
On a low mast the base blades operate in a turbulent area and the high blades are in calmer air, results of vibrations on the propellers, which are transmitted throughout the machine and which end up breaking everything,
When traveling by plane with a headwind to save time, we fly lower, the wind is less strong, but it takes a seat belt to stay seated on the seat!
When we fly at 1000 feet or less, in a turbulent atmosphere (wind on the terrain) we experience all these vibrations in a small propeller, imagine that on a propeller of 10 meters and more, although it turns slowly at the tip of the blade. passes very quickly it is around 600kmh per hour that a propeller starts to have bite (the maximum that a propeller is turned is 1050kmh) it becomes noisy ..

Andre
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pluesy
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by pluesy » 09/02/07, 23:42

the problem is just if the wind no longer blows in front of the cliff and the wind turbine follows the wind : Mrgreen:

but with such power we must be allowed to take only one direction of wind ...
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by pluesy » 10/02/07, 00:56

Andre wrote:Hello,
On a small mast the low blades operate in a turbulent area and the high blades are in calmer air, results of vibrations on the propellers, which are transmitted throughout the machine and which end up breaking everything,

Andre


thank you andré for bringing us back to reality, but in france we are forbidden a lot of things and i have a friend who had to file a building permit for a small garage in removable sheet metal ...

so when we are allowed legally to build a 12 m wind turbine, the axis we find ourselves exploring all the possibilities even the most stupid ... just to laugh and imagine the head of a citizen who wants to dismantle a wind turbine and to whom we brandishes a text of law to prove to him that it is legal ...

even if it makes me happy to imagine the scene
I don't at all want to dig 30 m underground at 360 ° and build 40 M blades (or by gradually increasing the diameter of the blades like that the wind turbine makes its hole all by itself : Idea: : Mrgreen: ) ... I just got engaged on the delirium of zac and I added a layer : Lol: : Lol: : Lol:

It's good to laugh and imagine stupid things even if sometimes if it flies very low ... : Oops: I agree...
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beast
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by beast » 12/02/07, 17:31

For my estimation I did not take into account the increase in the cost of electricity. It is difficult to estimate over such a period.

Do you have an idea on the wisest: resale to EDF or storage?
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mdelatte
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by mdelatte » 12/02/07, 18:08

Storage is a real worry ...

in battery, extremely expensive and not very suitable for manufacture.

I have always thought that a large water tank ... to be heated with an electric resistance remains a feasible solution on our scale.

but then what to do with all that hot water? hard hard to redo the electric current ... a heating system in exchange or in the ground, why not ...

I see that EDF in France and Electrabel in Belgium are protected by the same subterfuge so as not to buy production from the private individual (standard on this and that, and as if by chance, arrange not to label the equipment payable by the private individual )

courage therefore

PS: for Belgium, the question of authorized height seems more "vague". In my town, I was told: no permit as long as if it falls, it stays with you ...
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