DIR Return Create A Forum - Home
---------------------------------------------------------
Lynx Wind Forum
HTML https://lynxwindforumhtml.createaforum.com
---------------------------------------------------------
*****************************************************
DIR Return to: Wind Power
*****************************************************
#Post#: 1545--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: February 16, 2014, 6:02 pm
---------------------------------------------------------
LOL I know the feeling glad your back up and running
I am still amazed at that bearing trick, I wouldn't have
thought it would make a difference !
#Post#: 1643--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: February 27, 2014, 7:34 am
---------------------------------------------------------
Ok I have my diy 75 all tweaked out ! its balanced pretty good ,
it spins with just the slightest breeze (ball bearing in bottom
of tube ) thx @LW & @CG , I made NessProjects Boost Circuit that
works !when I get to cut in speed, Thx @ NP for a simple circuit
that I could put together . Now on to the next stage ! figuring
out how to drop my cut in wind speed . That's the trouble with
windmills you need to have more wind to get it to charge
batteries, and not everybody has it so that's where I will
concentrate my efforts
#Post#: 1647--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: February 27, 2014, 9:41 am
---------------------------------------------------------
Yes and it does ! But I want to improve windmill so I don't have
to use boost circuit to charge 12v batteries . Most of the time
my windmill puts out about 3- 4 volts ac so even with boost
circuit it still does not charge batteries (12v ). I like your
idea of using 6v batteries but then you have to switch over to
series to use, there are times when you cant charge batteries
(while using 12v setup )
#Post#: 1650--------------------------------------------------
Re: Seagull DIY Discussion
By: burnit0017 Date: February 27, 2014, 5:55 pm
---------------------------------------------------------
HTML http://usvawt.com/cgi/windpower.cgi?h=4;hunit=0.3048;d=3;dunit=0.3048;Calculate=Calculate
Hi, the above link is a calculator that will show how much power
your size VAWT should generate at a given wind speed.
For charging batteries, fabricate more then one VAWT and run
them in parallel. Also increase your coil count and increase
your magnet size. Then you need a DC to DC step down converter;
buck converter; with a adjustable duty cycle. Alway operate the
buck converter in discontinues mode; < 50%. These are just
suggestions and I look forward to your results.
#Post#: 1652--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: February 28, 2014, 7:30 am
---------------------------------------------------------
@ Cg I don't know how yet ! that's the challenge builds a
windmill that's more efficient
@ Burnit0017 that chart is great but still it only gives you a
40% efficient windmill and that's a finely tuned one, where are
we loosing that 60 % ? that's a lot to loose .
#Post#: 1653--------------------------------------------------
Re: Seagull DIY Discussion
By: lynx wind Date: February 28, 2014, 8:45 am
---------------------------------------------------------
This is the last time I will say this. And then I will let you
guys learn.
There is no way/no how to get more of something than there is.
No electronic gadgetry, no pulleys, no gearing are going to
increase what's not there. If you want more power you need
bigger or more wind.
The best IC engines are maybe 40% efficient, normally more like
30 %. A wind turbine can't be much more than 45% efficient due
to some of the wind needing to move around the blades, and some
of the electrical losses in the alternator. 15% at the highest
wind speeds are likely. 45% at low wind speeds possible.
That said, you can exchange volts for amps and viceversa. But
you wont magically create more power. So if you want to cut-in
sooner you can lower battery voltage or use a boost circuit.
Keep in mind that no wind turbine does much in winds below 9
mph. The Gulls will do some work at 5-8 mph but there is very
little power in the wind at those speeds.
If you can't fly a kite there isn't much power.
#Post#: 1656--------------------------------------------------
Re: Seagull DIY Discussion
By: lynx wind Date: February 28, 2014, 11:50 am
---------------------------------------------------------
Sorry if I came across as scolding. I just want to see people
move the ball forward. I wish I could put a 500 watt Gull in
every experimenters hands so they could see where we have to go
from here. You're right about the FAQ, there is a FAQ answer
section at the Lynx Wind website, not on this forum.
By the way - The guys that put down VAWTs are living in the
1980's.
#Post#: 1661--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: February 28, 2014, 4:49 pm
---------------------------------------------------------
@ LW I would never think of anything you said as scolding or
anybody else here everybody here has been so helpful!
#Post#: 2084--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: April 4, 2014, 8:04 am
---------------------------------------------------------
Could you put one of your gull 160 alt. on this diy 75 and have
it work? or just a bigger alt and still have it work
#Post#: 2092--------------------------------------------------
Re: Seagull DIY Discussion
By: sut Date: April 4, 2014, 5:18 pm
---------------------------------------------------------
So you don't have any trouble with it getting up to speed as
long as the wind is there ? and what is the most volts you have
seen with your ? can I even go bigger with say 8 coils and 16
magnets and still have it start and spin fast enough . The
reason why I want to know is I need to build a new stator for
mine, and I don't want to over size it for the windmill and
have another boat anchor. when I was making the original stator
I used to thin of board for top press and it has a bulge on one
side of stator so I cant get magnets very close to stator right
now they are about 1/8 plus away from coils on one side and
almost rubbing on other side . I love this design and think its
great! I just need to fix a couple of screw ups in my making of
it .
*****************************************************
DIR Previous Page
DIR Next Page