Comments on: Next Generation Wind Turbine Produces 3 Times the Power

By: tajweed quran online

tajweed quran online — Fri, 15 Jan 2010 22:46:53 +0000

at least some body is doing some thing and moving his way forward i think that after the lunch of the prototype they will figure out the ways to improve it and use it more efficiently

By: f_s

f_s — Sat, 19 Dec 2009 22:19:06 +0000

Just checked their webpage and, and yes, they actually claim that “Dragonfly also produce electrical energy in NO WIND at all.” Well, that certainly puts the final nail in the coffin from my perspective

By: f_s

f_s — Sat, 19 Dec 2009 22:04:43 +0000

So here is what doesn’t makes sense to me.

- “The fundamental flaw in every wind turbine is that none of them actually speed up the air – they all base their functionality on relative wind speed and will only produce energy if the wind is blowing”
Is it being implied that the dragonfly can generate energy even without wind? I think there is another word for such a machine.

- I think one should be suspicious when claims are made that break physical laws (betz law). Even in theory all the energy cannot be extracted, since this would bring the airspeed behind the windmill to zero, and block the wind in front from entering the mill.

- The current wind turbine design allows a windmill to extract 59% of the energy in theory, and 45% in tests. So a triple increase is 135%. That’s quite amazing and impossible too, unless the triple increase is because that it can produce energy at wind speed outside the range of a normal windmill.

- It also seems to me that the fan area spanned by the dragon fly must be much smaller, otherwise the construction itself is huge. A smaller fan area would mean a smaller volume of air will come through the windmill. So even if it has a higher efficiency, it should produce less energy.

Perhaps somebody can enlighten me?

By: James Smith João Pessoa, Brazil

James Smith João Pessoa, Brazil — Tue, 15 Dec 2009 15:34:40 +0000

While I would like to believe that this is true. some independent comparisons of this with standard turbines in identical conditions would be more creditable. Just because the manufacturer says something, that doesn’t make it true.

Side-by side comparisons with reproducible results are proof.

By: Uncle B

Uncle B — Sun, 06 Dec 2009 12:59:00 +0000

Science used in the logic of this design is beyond me! I once saw a great 5′ diam.. turbine in a scrapyard spinning quite quickly in just summer breezes – I tried to stop it with my hands – much to my surprise it was unstoppable! had a great deal of power! As Energy grows scarce due to Asian demands on limited world resources, we will seek out these less obvious ways of getting smaller amounts of power, and carefully conserve its use, not wasting as before, in the “Cheap Oil Era” The paradigm shift in American views of energy and its value are already morphing the American Dream lifestyle – some folks even living off-grid with modern technologies assistance. The morphing of American society this way will reach convulsive proportions as the dollar continues on its downward slide to a possible crash. We will soon adapt European customs of energy conservation, just to survive. The growing lines of “Unemployables” are a sign of the times – this recovery will leave souls behind! American souls! Patriots! or as the commies used to call the disposables, “Proletariat’ they did this just before the fall of the U.S.S.R. a seemingly impossible occurrence even today to the folks that lived through it, and they are still in shock and denial! Will we feel the same way in the decade to come, when America faces demise and failure of government and economy? Will America pull through unscathed? Will new-fangled wind turbines contribute to the new economy, not based on oil? Can it be true that the “Prairie Corridor” possesses enough Wind Power to fuel America? Replace Oil in America? Is T, Boone Pickens right when hes says it is so? Were Scientific American kidding around when they said the same about Solar Power in the American South West? Is any of this worth knowing? Will Americans stay addicted to gasoline until “Third World” conditions prevail in America? Even our schools rated only 32nd in the world today, are suffering. Are we following the U.S.S.R. into the abyss? Can electric bullet trains reduce our foreign oil bill, the one that is ruining our economy today? Must we continue being “Blackmailed” by parasite Oil countries abroad due to our own addiction? Are their alternatives? Does anyone in America give a damn anymore?

By: SUNfiltered : Fresh culture daily. » Blog Archive » Green tech finds (11/5/09)

Thu, 05 Nov 2009 22:51:46 +0000

[...] Wind turbine 15.0: OK, I made that number up, but turbines have gone through tons of iterations. Dragonfly claims to have designed the next generation of wind turbine: one that speeds up the air as it moves through, thus creating more energy. (via Green Living Ideas) [...]