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Rahai vawt anyone? | 23 comments (23 topical, 0 editorial)

Re: Rahai vawt anyone? (3.00 / 0) (#4)
by Lumberjack on Thu Mar 13th, 2008 at 05:50:02 PM MST
(User Info)

I think he means radial....

Re: Rahai vawt anyone? (3.00 / 0) (#5)
by obelix on Fri Mar 14th, 2008 at 02:41:12 AM MST
(User Info)

Hello,

No, it's a novel type of blades for savonius type VAWT.
Take a look at:

http://www.energy.ca.gov/research/innovations/eisg_final_reports/index.html

and then:
DEVELOPMENT OF OPTIMUM DESIGN CONFIGURATION AND PERFORMANCE FOR VERTICAL AXIS WIND TURBINE.

It was very interesting, because it encompass the double mode of vawt:
Drag + Lift and study the implementation of the lift side !!

Hope this helps!!!

[ Parent ]

Re: Rahai vawt anyone? (3.00 / 0) (#6)
by vawtman (vawtman(at)charter(dot)net) on Fri Mar 14th, 2008 at 03:03:09 PM MST
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Thanks obelix
Feel like the poster here since he abandoned us apparantly.

Me need to get a grant.Hmmm

[ Parent ]

Re: Rahai vawt anyone? (3.00 / 0) (#7)
by john j on Fri Mar 14th, 2008 at 03:25:17 PM MST
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Thanks so far, I dont have plans really, Im just building. http://www.energy.ca.gov/2005publications/CEC-500-2005-084/CEC-500-2005-084.PDF
My plans are stoneage-simple: Mount hub, with rim and part of axle from agriculture-type trailer. (Can handle about 1000 kgs of weight/each wheel). Weld rotor to rim. Use rim as v-belt pulley (bottom-(flat) of v-belt is used on the rim) Generator is from a car.
Remember this is just for testing rotor setup. This heavy hub has too much resistance to be super, but should give me an idea of the forces that is working my vawt.
And these are parts I have lying around.Ill buy only 3 sq meters of steel plate.
My plan is to carefully balance rotor before welding it to rim, and also I plan to put a small support bearing on top of rotor. Pictures will follow soon. Cheers, John

Cheers, john j
[ Parent ]

Re: Rahai vawt anyone? (3.00 / 0) (#8)
by vawtman (vawtman(at)charter(dot)net) on Fri Mar 14th, 2008 at 04:46:12 PM MST
(User Info)

Thanks for the info John and welcome aboard(not sure if i'm qualified has welcome lady)
You may be able to do better without the vbelt and car alt but get her spinnin and HAVE FUN!

Can't wait to see the pics.

[ Parent ]

Re: Rahai vawt anyone? (3.00 / 0) (#10)
by elvin1949 (elvin1949@yahoo.com) on Sat Mar 15th, 2008 at 12:03:12 AM MST
(User Info)

I would direct drive it myself.
later
Elvin

[ Parent ]

Rahai vawt anyone? | 23 comments (23 topical, 0 editorial)

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