Faroun Savonius Wind Turbine

Step 13 Faroun-3-phase-coil-test-20awg-50-winds-Final

this step will show the 12 coils and 16 mags alternator testing

i decided to lay the coils, all 3 Phases conected and rectified produced 20volts dc at 60RPM 5mph wind

-12 coils
-16 N42mags 2 discs
-50winds per coil .125 thick very thin
-3 phase STAR configuration
-rectifed to dc using 2 bridge rectifires
-.2" gap in bettween the magnets an dthe coils.
-spining at 60RPM 5mph wind(using floor)
-produced 20volts DC

you are going to relize that my coils are very thin, but in order for me to get the mags close together i had to thin the coils to improove the flux passing through the coils,

the mags are only .5" far from each other and between them the sitt the coils.
you will see in the movie that i am getting 50 watts at 100 rpm again i had to rev it up to get the power cause i have no wind where i have it, any way with all my calculation., i am confidet to say it can get 200watt at 20mph wind.
note:maybe my calculation are a bit low but my expectaions are also low.

i am going to go back and use a treadmill dc motor because it did give me more power. I hope next step i will show the dc motor and who it works.

and place it outside in the real world. (outside will be in the next steps)

Faroun

Comments

[gepettoman]

what does awg stand for

[drbill]

American Wire Gauge

[faroun]

lol...I am so sorry to say that I spelled it wrong, it is the "Gauge" size of wire.

regards

[steve22]

Faroun, I think your circuit would be improved with a 3 phase rectifier circuit.
I have used them before, and they are set up a bit different than what you used.
It involves using 6 diodes, and should improve your setup by at least 15 percent. There is a web site that shows it here...http://www.allaboutcircuits.com/vol_3/chpt_3/4.html Hope this helps, Steve

[faroun]

OK, thanks I will check it out. every little bit helps. regards

[afbcom]

 I believe that is how it is already configured, the full wave recitfiers that are in this circuit are connected in parallel.  The coil inputs appear to be connected between positive and negative terminals.  In essence like the above drawing.

[faroun]

Thanks afbcom for the clearifications, i am not pro at this, so please correct me if i am wrong. others need to do it correctly.

regrads

sam

[freeenergy2009]

JUST WANT TO SAY THANK YOU TO ALL FOR SHARING ALL THIS INFO INSTEAD OF JUST WANTING TO MAKE A BUCK FROM IT. BILL

[faroun]

you welcome.

[faroun]

here is the new phase by phase connection. regards

[dna11207]

Hey Faroun, I was wondering if you could give me some helpful information. I am in the process of building a wind turbine alternator here but I seem to be running into some difficulty. I use 24 N45 2" x 1" x 1/2" on two rotor discs. I also have 18 coils, 6 connected in series for each phase. I made the first stator with #20 wire and used 80 turns for each coil. This produced some very high voltage but little in the way of current. Any load of more than 2 amps or so would make it almost impossible to turn but turns and produces voltage freely without load. Well, I figured way too many turns and too thin of a wire. So I made a second stator with #13 wire, 21 turns each. In delta, I was able to produce 10 amps into 12v batteries but still, it was extremly hard to turn, hard enough that wind would not be able to. Any Ideas what may be going on here? You can see some pictures of what I have done here Wind Turbine[

[faroun]

dna, what you are experiencing is the eddy current and the cogging effect,
you must research these effects to understand them.
you can start here : http://www.fieldlines.com/story/2003/12/27/202634/91

I was able to achieve my goal because my VAWT mass "rotating" was able to sustain demand.

start reading, you will find alot of answers.

[ijsche2]

I'm looking to build a wind turbine and you talked about a treadmill dc motor. Are these cheap and where can i look into purchasing them? Great design as well!

[faroun]

the best pm dc motor is ametek google it and i think you can find them at ebay regards

[ijsche2]

Also what equations do you use to come up with the output power, and what do the variables stand for?

[faroun]

go here for the forumla "blade area vs alternator" http://www.windstuffnow.com/main/generator.htm