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Generating RE Power in Atlantic Canada | 16 comments (16 topical, editorial)
Re: Generating RE Power in Atlantic Canada (3.00 / 0) (#15)
by DanB (danb@*no spam*otherpower.com) on Wed Nov 22nd, 2006 at 08:09:30 AM MST
(User Info) http://www.otherpower.com/

"DanB, thank you especially, as your earlier projects are what got me inspired, and interested in RE and wind power.  I also worry about my torsion system.  However, I am hoping the experiment will show that the change in wind direction over time will mostly correct itself by giving an opposing turn or two, given enough slack power-cable and time.  If I am wrong, the wire-cables and collar are easily removed and the system will run as most do.  Thanks, again!"

It's interesting.  I find that up here (and it is turbulant around here) machines tend to twist up slowly - but consistantly in teh same direction.  Which way it twists up I believe has a lot to do with which way it furls.  When running in a gusty wind - if the  gust hits it in such a way that the tail can lift - then sometimes the machine will mostly stay put and the tail will lift.  If it hits on the other side, the machine will yaw.  So it's more inclined to yaw one way than the other I think.

The way in which its likely to twist up is also the the way it needs to turn when it's furling.  If your's twists up and is prevented from further yawing - it will likely prevent furling and if the machine is running at that time it only takes once.  A machine that can't furl is likely to burn out and will also put a much greater load on the tower than it normally would.  I'd not inhibit the yawing on this - if you're that worried about it I would look into making slip rings.

Another good policy might be - unplug it at the bottom of the tower when your not around, and plug the line into a dead short.  Then, perhaps when your gone the machine can turn freely with the whole line and nothing will twist up and the machine will remain shut down.  That might solve both our concerns!

[ Parent ]



Re: Generating RE Power in Atlantic Canada (3.00 / 0) (#16)
by sdscott on Wed Nov 22nd, 2006 at 08:42:38 AM MST
(User Info)

I agree, thank you for your insight.  Your thoughts on 'turning one direction due to furling' seem solid to me. I may retire this modification... or, add a spring-loaded flip mechanism to titer my bird at the rest-stop in heavy winds... :) just having fun! Thanks, Dan.

[ Parent ]


Generating RE Power in Atlantic Canada | 16 comments (16 topical, 0 editorial)

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