Author Topic: Lenz2 wind tunnel tests are done  (Read 16435 times)

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Old F

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Re: Lenz2 wind tunnel tests are done
« Reply #27 on: December 03, 2005, 04:50:02 PM »
Ed


Boy you  raised  quite a stir with your home brew  wind tunnel .


All most as much as two brothers  from Dayton  Ohio did with there's  :  )


Great work keep them flying the right or should I say Wright  way.


Have Fun


Old F

« Last Edit: December 03, 2005, 04:50:02 PM by Old F »
Having so much fun it should be illegal

windstuffnow

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Re: Lenz2 wind tunnel tests are done
« Reply #28 on: December 03, 2005, 06:34:44 PM »
  Funny you should say that... My home-made tunnel is based on the original Wright bro's tunnel only a bit larger...  I figured if they could get reasonably accurate readings from theirs I should be able to come close as well...


.

« Last Edit: December 03, 2005, 06:34:44 PM by windstuffnow »

ghurd

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Re: Lenz2 wind tunnel tests are done
« Reply #29 on: December 03, 2005, 06:59:49 PM »
Funny you should say that... Do you recall their propeller efficiency, and the propeller efficiency of a modern Cessna type aircraft?

Seems like the History Channel said 88% vs. 92%? Or there about?

Not bad for a century of progress, depending on how you look at it.

(I know a lot of the stuff on there is un-correct)

G-
« Last Edit: December 03, 2005, 06:59:49 PM by ghurd »
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hiker

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Re: Lenz2 wind tunnel tests are done
« Reply #30 on: December 04, 2005, 01:20:32 AM »
same as my old motor conversion--i used harddrive mags and rewiered the outer coils.

the picture has some lighter wire in it -i sense  have rewired with thicker wire-

puts out over 20+ amps hooked to my old 5/8s hp gas engine-dosent really have to be running that fast at all..great little defusalater charger[single phase]

« Last Edit: December 04, 2005, 01:20:32 AM by hiker »
WILD in ALASKA

nothing to lose

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Re: Lenz2 wind tunnel tests are done
« Reply #31 on: December 13, 2005, 01:02:44 AM »
Curious.

Had you thought about a junk trailer house as a large wind tunnel?

 I have been doing cleaning and repairs/demo work to a junk trailer house here to make into my shop. Get my lathe into the back room now and I can either put the wall back on or install a door :)

 (Darned truck with the lathe/mill in it won't start now, Lucky it's a boxed truck)


So anyway while working on stuff down there I got to thinking, would a gutted trailer house work for a wind tunnel? Remove inside walls, board up outside wall windows. This one is about 7-8' ceilings and 12' wide 65' long. If squared was wanted an 8' wide tunnel would leave nearly a 4' hallway beside it. Only need to build 1 wall, most of the materials already there when ripping out inside walls.


Just curious about it, I don't currantly have any wind tunnel plans, but if something like that would work farily easy often old trailer houses can be picked up for around $1,000 and moving costs. I could have bought another junk one a while back for $500 but did not want it then and no time to mess with getting it. Now I wish I had gotten it for parts, oh well.


Just thought I'd ask, maybe later you'll want a bigger tunnel like 8'x12'x70' and the thought might help a bit?

« Last Edit: December 13, 2005, 01:02:44 AM by nothing to lose »

hvirtane

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Re: Lenz2 wind tunnel tests are done
« Reply #32 on: December 15, 2005, 10:45:56 AM »
Really good.


Congratulations for

the really great job.


I've been silent for a while,

because of some problems of

Net connections; I had only

now the possibility to see

your results.


What about RPM?

How fast does the machine go?


- Hannu

« Last Edit: December 15, 2005, 10:45:56 AM by hvirtane »

colej

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Re: Lenz2 wind tunnel tests are done
« Reply #33 on: September 02, 2008, 05:55:26 PM »



Ed,

After reading about your wind tunnel test I got the idea of linking the turbines and I came up with this idea of three turbines linked as sort of a planetary gear.

All three would support the center rotor hub linked by chain and sprocket, as each turbine begins to rotate, it would drive the main rotor.

My question to you is.



  1. : If this could work do you think it could create more torque to run a more powerful alternator?
  2. : would the "spoiled" air coming off the windward turbine be to turbulent for the leeward ones?


I remember seeing somewhere a Savonius rotor that was over two stories tall (old picture from the 40's or 50's maybe)So how big do you think is practical for a Lenz2?


I live in an area of texas that is catagorized as "wind poor for economic development" and have really taken interest in your design as it seems the only probably design that can take advantage of my area.


Great work!

« Last Edit: September 02, 2008, 05:55:26 PM by colej »