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Re: How much power does a wind generator produce?

Hi there - sorry to post a possibly unrelated question! I am working with a new renewable energy magazine titled RenewerG and we would like to get in touch about a possible article/interview? Please feel free to delete this post afterwards :oops: I can be reached at catr at renewerg dot co dot za. T...
by Cat Robinson
on Wed Oct 27, 2010 4:20 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Simply the Motor part

... on in the global energy crisis! costs $100 (power4home), which I paid and never got my plans ... by blowing things up. ( well hopefully not to much). I also thought I should join a group, since ... if I may: Now for building a generator, how would using an induction motor fair as a wind ...
by chadley
on Mon Oct 11, 2010 5:34 pm
 
Forum: Stators and coils
Topic: Simply the Motor part
Replies: 3
Views: 2790

Re: How much power does a wind generator produce?

It all depends on the blade size. With 1m blades, 800W should be attainable.
by windgat
on Sun Sep 26, 2010 10:12 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

Windgat,
what would you rate your turbine on this site at? is this a question that can be answered?
I am in the JHB area and I am looking at wind vs sun
by jkproperties
on Wed Sep 22, 2010 12:57 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: Size & Shape of Coils

... current is drawn. Of course a fan is very low power. Maybe rather get a flat battery (6V is your case) and see how much current goes into that. You should be able to post an attachment ...
by windgat
on Wed Jul 14, 2010 11:43 pm
 
Forum: Stators and coils
Topic: Size & Shape of Coils
Replies: 22
Views: 14535

Re: My projects

Looks good - I look forward to hearing how much power you get!
by windgat
on Wed Jun 30, 2010 7:23 am
 
Forum: General
Topic: My projects
Replies: 13
Views: 6336

Re: How much power does a wind generator produce?

I have 46x30x10mm magnets (nickel coated), and am getting 50x20x8mm uncoated. Wire can always be arranged, usually by the kilogram.
by windgat
on Thu Apr 22, 2010 9:28 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: Coil Winding

... by charging at double rated voltage. Also, how could you then draw at 12V while charging (i.e. ... wind speed at the site? Or an idea of how much power you want to generate in that wind? Give me something ...
by windgat
on Wed Dec 09, 2009 9:34 am
 
Forum: Stators and coils
Topic: Coil Winding
Replies: 22
Views: 13208

Re: How much power does a wind generator produce?

16.35A at about 28V = 458Watts! Not sure what the wind speed was, but it was a gusting North Wester.
Power16A.jpg
Power16A.jpg (25.66 KB) Viewed 5119 times
by windgat
on Tue Aug 11, 2009 11:18 am
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: Bedini and free energy

... Attempts were apparently made to show them how the device is supposed to work, but ... circuit, the motor would run for much longer due to it being a monopole motor. This ... 12v DC Computer Fan 12v DC power supply (12v Car battery / transformer) -------------------------------------------------------------- ...
by Ripper
on Wed Jul 29, 2009 12:39 pm
 
Forum: Free Energy?
Topic: Bedini and free energy
Replies: 9
Views: 6346

Re: Vertical Axis Wind Turbine (VAWT)

It would great if you could find some figures and how close to the Betz limit such a design can get.

It looks like a cone, so the area would be about 1/4 of a square metre? That doesn't seem like much power could be generated. I guess you would be very lucky to get 50W in a 10m/s wind.
by windgat
on Mon Jun 29, 2009 5:39 pm
 
Forum: Blades and Hub
Topic: Vertical Axis Wind Turbine (VAWT)
Replies: 19
Views: 14293

Re: How much power does a wind generator produce?

Ok ok, I let you win that one! (mainly because of that nice icon...)
by windgat
on Fri Jun 19, 2009 2:03 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

OK windgat, but . .
There's no current without a voltage. Image
by Greystoke
on Fri Jun 19, 2009 1:53 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

"...in this context..." A wind generator is never run without a load. You are right (of course!) in theory, but I am thinking practically.
by windgat
on Fri Jun 19, 2009 1:42 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

windgat wrote:Well I remain confused. I thought that when a conductor 'cuts' magnetic flux, a voltage is induced (which results usually in a current, so in my simple mind voltage/current are interchangeable in this context).
If there's no load, there can't be a current. So what do you propose will happen then :?:
by Greystoke
on Fri Jun 19, 2009 12:13 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

Well I remain confused. I thought that when a conductor 'cuts' magnetic flux, a voltage is induced (which results usually in a current, so in my simple mind voltage/current are interchangeable in this context). For diagrams/simulations, you can download a 30day free trial of magnetic modeling softwa...
by windgat
on Fri Jun 19, 2009 11:35 am
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: Power and wind speed averages

Hi guys, I needed to know how much power I can expect from the turbine I'm planning to make. For that purpose ...
by Greystoke
on Fri Jun 19, 2009 10:00 am
 
Forum: General
Topic: Power and wind speed averages
Replies: 21
Views: 12754

Re: How much power does a wind generator produce?

:shock: So if a wire moves at a constant speed through a constant magnetic field, no current would be induced? Is it possible that you are confusing "induced voltage" with magnetic force on a current carrrying wire :?: According to some definitions, the term "Lorentz force" refe...
by Greystoke
on Fri Jun 19, 2009 6:29 am
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

Correct :!: If the field is constant then there is no change in time, and so d ? /dt = emf = zero Oh, and . . . It's not current that's induced, it's voltage . V(emf) = -d ? /dt = the time change of the field in Weber/second. and it's not just a wire moving trough the field . . . it's supposed to be...
by Greystoke
on Fri Jun 19, 2009 5:15 am
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

:shock:
So if a wire moves at a constant speed through a constant magnetic field, no current would be induced?
by windgat
on Thu Jun 18, 2009 11:45 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

No No, Its the change over time of the fieldstrength that causes the coil response. Not the fieldstrength itself. Why do you fly the magnets past the coils? To create a flux in time of course. When is that flux greatest? When the maximum fieldstrength passes the centre of the coil. The fact that the...
by Greystoke
on Thu Jun 18, 2009 6:23 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

Nice smiley!

I don't get it about the magnets. When the magnet is in between the two legs of the coil, surely the net effect is zero :?:
by windgat
on Thu Jun 18, 2009 6:06 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

. . . Does that mean the diagram I posted shows the point of maximum voltage generated? No, In the position you drew, the coil will capture a considerable number of return lines, going down as the magnets approach centre. So its not the best position. The maximum voltage is generated when the magne...
by Greystoke
on Thu Jun 18, 2009 5:26 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

Wow... keep it simple for me, remember! Does that mean the diagram I posted shows the point of maximum voltage generated?

Yes you get a prize! :clap: :clap: :clap: You get the next 100 posts absolutely free of charge :lmao:
by windgat
on Thu Jun 18, 2009 5:16 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792

Re: How much power does a wind generator produce?

The response of the coil is in answer to d?/dt, the time variation (flux) of the fieldstrenth ?. Obviously the highest voltage can be expected when ? is highest over the same time change, which is obviously at the point when the highest flux is captured, ie: when the magnets are dead centre, and the...
by Greystoke
on Thu Jun 18, 2009 4:52 pm
 
Forum: General
Topic: How much power does a wind generator produce?
Replies: 85
Views: 50792
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