Directorly Downwind Faster than the Wind

[ramset]

well Bill I would just like to understand what the fellahs meen by 4 times more efficient!

That vortex deal they have going on focusing spinning etc.. is what I believe TS was reffering to [compared to standard prop tech]

4 times is a lot of times![rediculous]

Chet
Ps Clo ,
Yes ground effect A ,sort of like a frictionless bearing!
Wouldn't that be sweet!!
PPS
Any ideas on how to replicate this?
http://www.greenoptimistic.com/2008/03/31/jet-engine-like-wind-turbine-4-times-more-efficient/

Plexiglass and heat?[making blades]
??
Maybe Tin?

Maybe
?
The Black bird boys proved the wind is scalable,
Start small ,expect big things to happen!

I could see this unit on the treadmill grabbing "boost" and blowin a hole in the wall!

[Cloxxki]

@Ramset
What do I know, I have not built anything useful ever. I just come up with ideas for other to throw their skills on. Sometimes that works out nicely though :-)
Anyway, I think the designers of the flodesign kept the specifics out of their images. I'd build a prototype such, that you could still re-do all the important shapes. Especially the vanes and ducts. It could be a spongy foam, with iron mesh, and covered in a shrink-fit type of skin. It would need to be stiff enough to endure the wind pressure and centrifugal forces, yet soft enough to shape it by hand.

Nice thing if you get the generator/engine part right, is that you can use the same unit both as a turbine effeciency and a prop thrust tester.
For a simple device, at leas tto eventually manufacture, it must be quite a task to build yourself.

[nickle989]

Here is one that has broken the Betz limit ... http://www.windtamerturbines.com/

The main concept behind this one can be used on other designs to make turbines more efficient then what most are today.

[ramset]

Nickle,
Thanks, obviously as TS stated this tech is in its infancy!

I believe the "Flo" design has more potential .

All Betz are off!

HHMMMmmm..... maybe paper and hair spray? [mock up foils;}

Chet

[Cloxxki]

[A author=nickle989 link=topic=6261.msg242695#msg242695 date=1275048165]
Here is one that has broken the Betz limit ... http://www.windtamerturbines.com/

The main concept behind this one can be used on other designs to make turbines more efficient then what most are today.
[/quote]
Most Interesting!
I like that it has a smaller frontal surface, and a large surface to press against the tailwind should it be used in DDWFTTW mode. This think might work out pretty well...

Added to it might be my little idea to exploit wind layer differences, by tipping the cone such that the lower perimeter is pretty much level with the ground. A smart inner vortex design or simply a longer upper rear lip could do the trick.