Wind turbine: hub and blades replacement by larger?

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plasmanu
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by plasmanu » 16/04/12, 17:16

http://youtu.be/R3iIug4ign0
I had badly inserted the plug in the GTI, not returned to the bottom.
Poor beast, it must have been overvoltage and without uploading it is risky.
Put screws at the bottom of the mast, it walked in the attic.
Not mounted on the roof. It blows well.
Original blades.
Disappointed because it produces but not up to my expectations for a 500w peak.
I measure 2 to 3 volts at the bridge exit even if the blades do not rotate !!! I would add a Schottky.

Image.

The time to do all this the sagem has accumulated 1watt.
Image
Not yet retreated seen from my eyes : Cry:

Edit:
http://youtu.be/YYIU8lbCkxM
this one is average, the flash fills the window on the first 30 seconds.
We can clearly see the delay between the voltage received and the injection which begins.
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plasmanu
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by plasmanu » 16/04/12, 19:36

went home
forgot to turn off the voltmeter and recover the fresh cream
good little mistral the wattmeter on the injection went up to 97VA
but I don't really see how it can turn faster, I have a look from below (broken tile) that turbine very very quickly.
Added an intermediate cleat halfway up the mast to limit vibration. It is aligned with a large beam. aimed at the wooden cleat floor in the middle and 10 turns of elastic cord on a chevron at 1,80 m.
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plasmanu
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by plasmanu » 18/04/12, 16:56

Gentle wind 20km / h from the south
Image
Refitted the Airx blades. No way to reduce the angle, the shims have only one meaning.
At least this triangular wedge model. There is another straight model which is reversible.
The nasal roll tends to vibrate too much for my taste.
During a measurement error while checking the 3phases. Forgot to reset the setting to continuous: I measure 20V AC at the bridge output for 10V DC : Shock:
I also check on my moto600CBR regulator ditto : Shock:
The regulator gives a more regular voltage.
And light up the grid red around 7 / 8v and green around 10,5 / 11v.

I have double measurement of AC voltage than continuous : Shock:
I should be only continuously straightened once.
I have positive at + and negative at -
Logic.

I do not understand. Is the shape of the straightened curve not straight / smooth?
Or is it the passage from -10v --- 0v --- + 10v amplitude 20v? Rectified 10v?

It is a basic voltmetre first price.
I can't wait for the colleague's oscilloscope.

I put the wattmetre on the grid of 180w peak panels.
Image
It works so much better
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plasmanu
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by plasmanu » 20/04/12, 06:28

I made myself a gift. Christmas before time. In Canada (Vancouver)
$ 328 + customs surprise :?: (a check in the wallet required.)
http://cgi.ebay.fr/Charge-Controller-fo ... 0357686507
Image
Will allow me to connect everything at the same point.
The wind turbine, my panels, the 2 GTI (solar + hybrid), a battery (bof) and the dump-loader (12v water heater)
This regulator deviates only the excess above 27v to the dump-loader and not the whole in the event of overload.

"Dump load utilize Pulse-width modulation (PWM)"
the PWM coupled with the MTTPs of the 2 GTIs should get along well.

Edit: my counter does not go back.
I'm not at home, everything is on standby for consumption.
I cut the water heater on April 01. (3 hours on HC)

Sagem racking meter reading of March 2, 2012
HP 50291
HC 29202

Yesterday April 19
HP 50369
HC 29206

consumption in a month and a half
HP 78Kwh
HC 151Kwh
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Forhorse
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by Forhorse » 20/04/12, 09:21

Have you ordered or are you going to do it?
Because I am interested in one of their GTI 600W but I have no ebay account.
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plasmanu
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by plasmanu » 20/04/12, 14:22

Yes early this morning
I took the airX +/- wedges yesterday
Image
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by Ruthenian » 24/04/12, 13:38

bidouille23 wrote:scuz but here is my personal achievement with the production tests and torque calculation (correct by Hadrien who then calculated the blades that will be manufactured this summer if I have time because I have more than a lot of work at the moment :) .)

http://www.thewindpower.net/forum/viewt ... =23&t=1541

I did not follow a plan itself (the principles yes) I did trials and tests, I am not happy with the result but I learned a lot by doing it, so I think next year or the next, make it a lot better :) ).

So if I tell you that your twisted wires cause losses I know what I'm talking about, I also could see this fact by doing my tests;).

finally empty at 1100 rpm my generator outputs 54 V and starts producing at 300 rpm;) and end of production at 700 rpm because after the blades will no longer follow.

I am not very expert I recognize it but hey the results are there just read the links :) .

that said if you are not happy that we try to help you it must be said, time is our life passing we can put this life elsewhere.
This is how we are thanked, well it's not encouraging all that : Mrgreen: , you are probably annoyed but do not be trying to understand that as Dedelco said it is not easy to do everything in writing.

A wind turbine is a package of compromises to make so wanting to summarize is much required.

come on, we calm down with both hands and we keep it :)


Hack, how much does your achievement weigh?
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bidouille23
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by bidouille23 » 24/04/12, 22:09

Slut, not weighed, but heavy :) , I was not with the back of the spoon for the tree it is 2 cm :) unbreakable lol, plus the bearings and the future mmm rotor, in short heavy ...

I would weigh it without the blades and I would tell you that.
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by Ruthenian » 01/05/12, 02:25

Plasmanu, what is the diameter of the tube of which you had installed your wind turbine?
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plasmanu
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by plasmanu » 01/05/12, 05:23

Tube diameter?
You mean diameter of the material, thickness of the tube.
48mm. 4mm tube (to be confirmed) airX size
The ista receives 55mm.
I put a round collar: iron + brass. To increase the diameter at the head.
I noticed that a worksite was exactly the right size and also had a square base to bolt on.
I'm going to move this to the back of the field.
Before I drop my tree which is right on the spot.
Threats to cry to the mayor. And the nuisance hit. (Investigation ...)
It is true that in my attic not isolated 2m below we can hear it well.
Know the neighbor justice well. Often on trial with the former owner.

Legislation in France "The Minister of Ecology and Sustainable Development (Answer to question N °: 111784 published in the OJ on: 20/02/2007 page: 1812): As indicated by article R. 122-9 of Environmental Code, installation work for wind energy production structures with a mast height less than or equal to 50 meters is subject to an impact notice.However, as Article L. 122 points out -1 of the Environmental Code, all development work undertaken by a public authority or requiring an authorization or an approval decision, as well as the documents, are subject to an impact study or impact notice. However, since the installation of a wind turbine with a height of less than 12 meters is neither subject to a building permit, nor to a declaration of works, it follows that the impact notice is not mandatory. "
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