Querying wind generator house building

[chlemagne]

You cut my legs off, guys.

What is the point of wanting to be an "econologist"?

Certainly, I was not expecting something amazing, but all the same!

What can I do ?

1.1) Either by modifying the generator

What will this modification be? "Gaston"

What can I hope to do with my beautiful wind turbine

Thank you

[Obelix]

Hello Germany,

Very pretty your wind turbine and according to the photo it is a "lenz turbine".
But you did it upside down in your project.
It doesn't matter, I'll try to tear you apart.
I would need the exact dimensions of your reel diameter and height to determine the likely power that you can draw from it.
At the same time if you have the average wind speed it would be nice.
According to this power I could direct you towards a construction of generator almost dimentioned for this wind turbine .... without that you end up with a monster.

Obelix

[chlemagne]

Hi Obelix,

Ah, someone who gives me hope that I didn't work for nails.

The three blades are each 1.20 ht / 0.20 larg ml (plastic part)
The radius of the wind turbine is 0.42 ml from the axis to the start of the blade curve.

For now, the beast is placed on the ground at the north / south corner of a building (my workshop). But I plan to put it four meters higher on the roof of the building. So the speeds are not yet significant. Although it already fell during a small storm (2nd winter storm). I arrange it with a weight so that it will hold, while waiting for the climb. (I live in Normandy 100 km from the sea)

As I said at the beginning of the post, I have already acquired neodims which I plan to stick on two discs which are in fact chainsaw discs with a diameter of 23 cm assembled using plumbing fittings in copper that I can + or- discarded according to the fittings and the moldings of the discs forming a hollow. (I can make you a photo)
All the winding part in the polyester resin remains to be done or my questions.

thank you in advance 1/2 horse before

[Obelix]

Hello Germany,

According to the dimensions given, the wind turbine is therefore about 1.2 m high and 1.2 m in diameter, ie a swept area of ​​1.44 m².
For this surface the mechanical power available on the tree will be:
With a wind of 3 m / s => a small 10W (rotation speed 38 rpm)
With a wind of 12 m / s => about 600 W (rotation 152 rpm)

This allows us to define the diameter of the coil wire because taking 250 Volts maximum at 12 m / s there will only be 2.5 A to pass.
According to the number of coils in parallel the diameter of the wire should be 1mm at most for three coils, .8 mm for 6 coils etc ...

To go further, it is necessary to know how many magnets and coils you will put? It depends on the size of the magnets and the disc on which they are mounted .....
To read you .

Obelix

[chlemagne]

You are a genius.

Wonderful

In fact, I already answered your questions at the beginning of my post.

I planned 24 neodim magnets on two trays on either side of the coils. Or 12 per tray
The neodim magnets are 45 x 30 x 10 mm to stick on a 230 mm disc.

At your disposal

[Obelix]

Hello Germany,

My apologies, I zapped a little too quickly the beginning of the post!
So let's go to the generator ......
I have been to see on the site which you quoted and I think that is what it is necessary to realize.
In 12 Volts it will be more universal and you will have less hassle with the dimensions. In addition I found you a pdf for the assembly made by the "daddy" of your wind turbine which has the advantage of presenting the various things to do and the tools to achieve it:
http://www.windstuffnow.com/turbine%20kit.pdf
In addition if you want to heat you can always use "ceramic car heaters" that are easily found for 15 to 20 euros on ebay .......

Regarding the wire diameters: do not go below 1.8 mm in this case. For the number of turns per coil in view of the low speed of rotation, it would be necessary to accommodate at least 50 turns even if it means increasing the "thickness" of the coils.
It should be remembered that these descriptions are for classic wind turbines that rotate much faster.

If something escapes you or you don't like it let us know!

Obelix

[chlemagne]

Thank you Obelix,

Thank you for your good answers

I knew this PDF.
Precisely, it was he who led me to ask myself the question of the usefulness of the de-focusing of neodims in relation to their theoretical axes to the right or left of a disc to another.
Do you have any idea on the matter?

I had + or - planned the "reduction". Can this bring me anything.
It eats no bread

Thank you for the idea of ​​ceramic heating. It is far from the convector of 2000 Watts but I have no more ambition.
It's already that of pirating at the EDF.

Ah, last important question:
I go out with three sons. Household appliances are mono. how do i do with the third son?
Shouldn't I wind for a mono output?

Thank you for your pertinent answers "Mihorse"

Note: Mon Tonton lived in Toulon. Your not my heating problem, you !!
We are not equal when it comes to heating

[Obelix]

Hi chlemagne,

Disaxing the neodimes will only serve to decrease the magnetic field, thus weakening the overall efficiency of the generator.
For the multiplication if you can it is a very good solution which will decrease the number of turns required in the reels. So less copper, less losses and increased yield ....
Multiplying by 5 would be the right solution, which would lead to coils of 40 or 44 turns.

For the three-wire output, it is due to the type of construction that you have chosen and you cannot change it without upsetting everything.
Do not intend to directly power household appliances with this output because the frequency is not good. To do this you will have to rectify the voltage by a bridge of six diodes and an inverter.

Obelix

[Alain G]

Be careful with ceramic heating which has a big disadvantage!

This type of heating block when cold draws a maximum of amperage which decreases with the rise in temperature so to increase the wattage capacity we ventilate more and to lower it we ventilate less!

[chlemagne]

Hi Obelix,

Excuse me for insisting: what do I do with my 3rd son?

Re excuse my reduction is 3.
I come back to 60 turns?

Yes, your reason for the appliance; I did not think.

thank you for your answers