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Forum Index : Windmills : Helibug Axial Flux Alternator

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axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 02:37pm 22 Aug 2015
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what could be wrong?....
all i want from this alternator is the power shown in the video at 1800 rpm....
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 07:20am 30 Aug 2015
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there is another one listed as 1800 Watt (2400 watt maximum)

https://www.youtube.com/watch?v=JChTFyH5ZHM Edited by axlflx 2015-08-31
 
electrondady1
Senior Member

Joined: 12/02/2009
Location: Canada
Posts: 208
Posted: 01:37am 31 Aug 2015
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all you need now is a windmill that turns as fast as a router.

why would you come on a windmill site and ask advice if you intend to ignore it?
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 04:57am 31 Aug 2015
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u r right mate....i should'nt be here....cheers
 
govertical
Guru

Joined: 11/12/2008
Location: United States
Posts: 383
Posted: 05:04am 31 Aug 2015
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Hi, the Helibug group sells RC controlled projects. They want to offer a battery charger using a PMA. The group on this site has knowledge and experience of PMA's. I could be wrong and corrections welcome.
just because your a GURU or forum administer does not mean your always correct :)
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 12:40pm 31 Aug 2015
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The problem is the RPM and the construction.

The RPM needed to get the power advertised is WAY to high for windmill applications. Decades of experience has shown that gearing up a alternator any more the 1:2 just does not work, there are losses and lots of issues that I wont go into, other than to say, its just not done. If it was practical to gear up a alternator for a windmill, we would all be using vehicle alternators instead of using the low rpm alternators that we use. Vehicle alternators are robust, reliable and even a small one can exceed 1000 watts. But we do not use them because of the RPM/gearing issues. Most of us have at some point tried, but failed.

Also the Helibug's construction will not last on a windmill tower. Its just not robust enough to survive a storm.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ
 
axlflx
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Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 02:27pm 17 Sep 2015
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this one is neat !
1.4 KW.... 1000+ watt at 900 RPM

https://www.youtube.com/watch?v=BWJP29kBkDE
https://www.youtube.com/watch?v=s_O1ZOJMQRQ
Edited by axlflx 2015-09-19
 
Gizmo

Admin Group

Joined: 05/06/2004
Location: Australia
Posts: 5078
Posted: 03:54pm 17 Sep 2015
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Its neat, but not practical. Its a good teaching tool, but wont be suitable for a windmill.

A F&P can make similar power, about 1 watt per RPM. At 900 RPM, a F&P would be making around 900 watts. You can pick up a F&P for less than $50, and it uses serious bearings and is very rugged.

Glenn
The best time to plant a tree was twenty years ago, the second best time is right now.
JAQ
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 01:26am 18 Sep 2015
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what is F&P?
can u post a link?
 
rustyrod

Senior Member

Joined: 08/11/2014
Location: Australia
Posts: 121
Posted: 02:01am 18 Sep 2015
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f&p
Always Thinking
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 02:19am 18 Sep 2015
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oh haha
no, sorry, no plans to install a washer motor on the pole !
i rather go with what its made for then trying to get a watt out of it.
 
govertical
Guru

Joined: 11/12/2008
Location: United States
Posts: 383
Posted: 03:11am 18 Sep 2015
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Laser cutter

Hi, any photo's of your laser cutter? I hope you have great success, the world needs more products like you are are trying to offer. Any plans to offer a MPPT charge controller? I am interested in your results. Edited by govertical 2015-09-19
just because your a GURU or forum administer does not mean your always correct :)
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 03:18am 18 Sep 2015
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http://www.4imprint.com/product/123302-ST/Cutter%26BuckMidlandsStylusTwistMetalPen?gclid=CPXa-9zVgMgCFZOGaQodhKsGuQ&gfee d=1&mkid=1pla123302-ST&ef_id=VdT5DQAABB2KuPBi:20150918131747:s
 
axlflx
Newbie

Joined: 19/08/2015
Location: United States
Posts: 19
Posted: 03:31am 18 Sep 2015
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Neat work i would say......oh well good luck to u!
 
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