Hybrid Car – More Fun with Less Gas

wind power- any comments on this statement - Page 14

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Posted by Jim Wilkins on December 24, 2009, 1:07 pm
 



http://www.windstuffnow.com/main/lenz2_turbine.htm

Thank you. That's my kind of project.

jsw

Posted by Curbie on December 24, 2009, 8:23 pm
 


Jim,

The Lenz is a nice machine, not too affected by turbulence, low and
slow, reliable, easy to build, and good for places that are touchy
about tall towers, because they will still function on low masts.

You'll still want to place them in the clearest air possible, but all
in all, a "tired and true" turbine for low power urban/suburban use.

Not much output though, but if you have a single battery that needs a
pretty consistent charge or are electrolyzing hydrogen or some other
low power need they will pay back over time.

I saw one built by a sheet metal shop all out of aluminum that
squeezed a few more watts out his (more responsive in low winds).

Have a good New Year.

Curbie



Posted by Curbie on December 28, 2009, 8:44 pm
 

Jim,

When I'm looking for something I can't find it, and when I'm not, I
do. Ran into that Lenz 2 built by that metal shop:



Curbie


Posted by Josepi on December 28, 2009, 10:20 pm
 

Very nice looking design. Larger spacers would be nice to accomodate a
larger stator assembly (higher voltage and more power o/p) and ways to
weatherproof the thing. Rust, oxidation & UV  would kill it in a few months
or years.

Thanx


Jim,

When I'm looking for something I can't find it, and when I'm not, I
do. Ran into that Lenz 2 built by that metal shop:



Curbie



Posted by Curbie on December 28, 2009, 11:24 pm
 

Josepi,


The generator's output has to matched to the turbine's input power
(blade size), the blade profile is such that it becomes inefficient in
high winds, so the turbine is designed to only run within a specific
wind speed range, the guy that created that design has pretty sound
math, and I would stick pretty close to his design.

I wouldn't worry about the oxidation of the stator & rotors, that type
construction has been used on DIY horizontals for years now. Don't
know much about their bearings, but I would think they're outlined
somewhere in that first link.

All in all they compare well to small DIY horizontals, the problems
pop-up when scaling them up and protecting them from extreme wind
events.

Curbie


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