A wind turbine with sails, the wind turbine at the nail!

[swift2540]

Here are the coordinates of the depositor of the idea of ​​departure

Hello,
Following your request:
Inventor / depositor details:

SARRAZIN CHARLES LOUIS VALERY / LA ROLLANDIERE 05250 ST DISDIER EN DEVOLUY

Good reception
Greetings
INPI Brittany

Wrong address ???

[phil53]

swift2540, why are you saying that, i got the info from the inpi yesterday?
It is not in the directory but it is not the proof that it is not at this address.
Lietseu is not Nice but a nearby department (05)
Lietseu, we don't have to do a gigantic thing, For a private individual I will tell you that a diameter of 10m should be sufficient. If it works, the interested people would be those who have land like a farmer.
For this size I think it is not necessary to use railroad tracks although secondhand it may not be that expensive.
For the automation of the sails according to the force of the wind this must be feasible and to facilitate the production of the current I believe that 2 generators would be better than one. In the event of weak wind one disconnects one of them.

[swift2540]

swift2540, why are you saying that, i got the info from the inpi yesterday?

Don't get angry, Lietseu wrote not located in the post above, I just went back to the address for visibility, voili voilou that's all ...

[Lietseu]

Thanks guys !!!

Someone would have already written to him, if not, I'm doing it in the name of econology ...

as far as the rails are concerned, it can also be in hollow tube, immediately from the railroad rail you have an idea of ​​what its weighs I had a piece of it picked up along a track with its 4 cm thickness it was already over 1 kg! I do not tell you what can weigh a length of 1 meter

To read you and thank you again, for the address, Lietseu

[Lietseu]

Good evening everyone, look no further we have found ...

The 12m diameter wind turbine rotated between 1 to 2 revolutions / minute.

With a wind of 9m / s with a "wing" of 100m² at 3 revolutions per minute, he estimates that it could produce 50CV!

Regarding technical speculation, he says he takes it for granted that Betz's law does not come into play for this kind of wind turbine.

The machine was equipped with an alternator of 6KW at 1500t / m and a truck brake which burned during a test, while the wind had suddenly risen (before installation of the central furling system).
During the interviews with Luc Haegeman, who made the last and final essential research, Mr. Charles Sarazin told him that he would agree to provide more information. And to register on the site, which will not be long since, I launched an invitation to him by email.

With smiling greetings from Lietseu

[chatelot16]

for old boats which moved much slower than the wind, it is only the sail area that counts: no need to mast too high

but when the boat gets faster the sail works like an airplane wing: the more the wing is extended the more efficient it is: it is better to increase the surface by the length than the width

the faster it goes, the more the useful surface is greater than the actual surface until the useful surface is the whole surface swept by the blades

we therefore have the choice: slow mainsail, or narrow and fast metal blades

for guiding we also have the choice: vertical axis and veil which turn in circles on a circular rail, or narrow blade which turns on a horizontal axis

the system which turns on a circular rail seems simple but is in reality more expensive than the classic wind turbine

Another point to remember: the wind is stronger at great height: with the classic wind turbine we put a pylon high enough to seek the wind as high as possible: with the sails that turn in circles it will be less easy

another error: the air cushions: something on the air cushion advances almost without friction, but we must not forget the fan which inflates the air cushion: it eats a catastrophic power ... it is even possible with a weak wind that the power required is greater than the power produced ...

the railway wheels consume very little energy but make a lot of noise

bearings on the shaft of a classic horizontal shaft wind turbine are the right solution!

[coucou789456]

bonsoir tout le monde

I see that the energy of ideas come back while I was lounging in Perpignan (for those who know) then slowly returning to my home port (with my oil-fired vehicle, on 4 wheels).
at night, there are no landscapes to observe, the twinkling lights in the distance from Barcares, Port Leucate, Leucate, and on the left of the national road, lightning from the various wind farms: these wind turbines are gigantic and alter the landscape quite a bit. plus a certain number lack maintenance and often remain motionless despite the almost perpetual wind that there is here (more than 200 days a year). installed on the plain between the foothills of the Pyrenees and the sea, not on the whole plain because because of the airport, a large place is lost ... but will remain available for sailing installations! shame.
following the valley and the overall orientation of the Pyrenees, the wind is almost always east.
in all between Perpignan and Narbonne, there are well over fifty wind turbines installed, some, even if they benefit from a good wind, we were installed despite everything in spite of common sense.

jeff

[coucou789456]

re

no unnecessary controversy on or about rails, besides I was wondering where and who could get railroad rails, but I would not say his name ...

by rail, moreover, it seemed to me to have said metric track, therefore smaller than the 1m43 tracks of conventional railways. on the other hand, I was talking about (rail) track, but it is immediately that we think of when we talk about railroad or rails.

by rail, it is better to understand guideway, so not necessarily with heavy metal wheels. I thought in this way of a system of "rails" installed horizontally, but functioning in the same way as the "twin-pipe monorail".


this style of "rails" allows the maintenance of a whole carts, but it was only an idea.

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concerning the height of the sails, it is more difficult to determine. because if the wind generator has a small diameter, it will turn faster, therefore high sails, but will have the advantage that the system can have only one vertical axis, if for example the assembly does not make more than 2 or 3 meters in diameter. although it is debatable, can be a central axis to transmit mechanical energy, but imagine a support by wheels for the periphery. advantage that will not require a large central structure.
whatever the realization, the sail which goes against the wind should be retracted because even if with a good profile and does not slow down too much the whole, it is on the other hand completely unproductive.
in any case, it will be necessary to provide for the possibility of retracting the sails in high winds.
a small diameter system also has the advantage that it could be connected directly to an alternator, without a multiplier, therefore with the minimum of losses. can even be inserted with a flywheel to absorb sudden changes in wind speeds, a flywheel which can be integrated directly into the structure of the assembly. (guaranteed gyroscopic effect)
the flywheel will also act as a capacitor in an electrical assembly. production will be more stable, since the rotation speed will be "stabilized"

by extension to such a system, the sails could even be positioned between 2 distant structures, the sails going from one to the other ...

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I was talking about retracting the sails, for the one that is unproductive, or to stop the operation in high winds, this system could be simply a method to align the sails in the direction of the wind, carried out not with a system of gearing like that de Dieudonné (eolprocess), but rather by a cam integral with a weather vane: each sail mast guided by this cam throughout the rotation, which will allow optimum orientation of each sail.
to imagine the system, see how the cams work which allow a sewing machine to make specialized stitches.

jeff

ps: I cut my posts because I have frequent micro power cuts in my corner

[Lietseu]

I invite you to look at the post 2 boxes above! than yours

Thank you for your ideas, it's all good!

A + Lietseu

[coucou789456]

hello all

50 HP for 12 m in diameter, it's not bad ... especially since it's still 36 Kw, more than more than enough for a fireplace ... that's why it would be better to move towards a smaller wind generator, let's say that will give or could give about ten Kw, to reduce the cost of production and size, even perhaps limit to 6 Kw because alternators in 6 Kw, nominal production speed of 240 tr / min exist: it will certainly be the most expensive part in the installation.

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Obviously, no need to speculate, especially at this time with the state of the stock market ... no, I was thinking about the wind generator.
the betz formula works perfectly for an aerogenerator with blades (wind turbines) or sails on a mill, therefore with the productive parts permanently exposed to the wind.
in the case at hand, it is difficult to apply it, because part of the time, part of the wind generator is unproductive, moreover the surface of the productive element (s) is not taken into account, which seems absurd , no offense to purists.
and lastly for those who absolutely want to apply it, you may have big surprises regarding the results found.
do your own power calculation tests, betz style, and you will see that very often the calculated theoretical production is ridiculous, or even zero, especially if we have to take into account the aerodynamic brake of the structure.

and for all these purists, the airplane wing profile is the panacea, but what about wind turbines that use the magnus effect? especially as for the latter, the realization of the blades is almost of a childish simplicity, compared to the others.

jeff