Wind blows horizontal, to date the most efficient wind turbines are the horizontal type designs NOT the vertical or (helix type)shown here. Horiz. turbines have the most sweep area per blade diameter, thus creating the maximum torque at low wind speeds or highter. Helix or vertical wind turbines are the least efficient, in reguards to torque or useable power output!!All of these other vertical turbine designs look nice (for show) but are impractical for any kind of sufficient power generation.
i would have thought that the vertical design has more sweep area. if you look at it from the front it has a rectangle area exposed to the wind whereas with a horizontal wind turbine you have a circle facing the flow. this would mean that the vertical version has the potential to extract more energy.
By ‘efficient’ I’m assuming you mean (electricity out) / (wind energy in).
Since wind is free, it’s irrelevant, except that it is loosely tied to ‘Cost efficiency’, that’s what really matters. Vertical axis turbines may be cheaper, and easier to maintain, if you want more power, just make it bigger. I’ve invented a vawt, actually, can’t show you yet though, your mind is too small.
The Spiraling Partially Negative Offset Blades seem to capture the wind with more authority and use its pushing force to the utmost,
An Excellent Design and Fascinating to Observe !
This design has been around for a very long time.
These things can spinviolently fast on windy days, it would cause a hazard to someone standing by it on the ground..
Standing by a fire can be dangerous as well as crossing the road or driving a car. Roundabouts in kids play grounds are dagerous as well .Each year in the uk alone 100 people die from tripping over their own underwear.
What I like about the vertical axis wind turbine is that it catches the wind that can be blowing from any direction and no one ever knows where the wind is coming from. Although seems that some times half way thru the spin the blades has to pass thru a stall situation.
HUAUHAUHAHU
Yep will be so cool see this sharp blades in the parks.
UAHUSUAHSHU
This one is much close to the ground will not gain much speed, but if put this a little higher you will have a potato Cutter… LOL
anyone know if this is good cuting potatos?
thank you. living in fear is death. lifes only fun when there is risk and really, 95% of the time, theres no real risk if you focus on what youre doing. nothing great is done with the motto, ” better not do it cuz something bad may happen”
July 5th, 2008 at 8:00 pm
just beautiful. It looks like a moving piece of art. Great design and good job man.
July 10th, 2008 at 6:48 pm
Wind blows horizontal, to date the most efficient wind turbines are the horizontal type designs NOT the vertical or (helix type)shown here. Horiz. turbines have the most sweep area per blade diameter, thus creating the maximum torque at low wind speeds or highter. Helix or vertical wind turbines are the least efficient, in reguards to torque or useable power output!!All of these other vertical turbine designs look nice (for show) but are impractical for any kind of sufficient power generation.
July 19th, 2008 at 8:35 pm
and you get cancer
July 20th, 2008 at 3:45 am
LIFE will give you cancer
July 28th, 2008 at 3:29 pm
i would have thought that the vertical design has more sweep area. if you look at it from the front it has a rectangle area exposed to the wind whereas with a horizontal wind turbine you have a circle facing the flow. this would mean that the vertical version has the potential to extract more energy.
i agree it looks really cool!
August 10th, 2008 at 2:11 pm
By ‘efficient’ I’m assuming you mean (electricity out) / (wind energy in).
Since wind is free, it’s irrelevant, except that it is loosely tied to ‘Cost efficiency’, that’s what really matters. Vertical axis turbines may be cheaper, and easier to maintain, if you want more power, just make it bigger. I’ve invented a vawt, actually, can’t show you yet though, your mind is too small.
September 14th, 2008 at 3:50 am
DNA! =D
September 21st, 2008 at 8:02 am
The problem I can see with vertical turbines is the wind resistance on the returning blade robs energy from the blades being pushed.
September 29th, 2008 at 2:00 am
No if it’s aerodynamically designed to lessen resistance on the returning blade and increase it on the leaving blade.
October 2nd, 2008 at 4:14 pm
It slices and dices…LOL
October 25th, 2008 at 9:36 pm
I like the design. Please email me the blade design as Im building my VAWT.
Well done on the design, it does look really cool.
November 20th, 2008 at 4:03 pm
excellent desing,Please email me the blade design thanks.good job
November 28th, 2008 at 5:32 pm
It´s driving me crazy… When you unfucos your eyes it looks like 3 sperm cells swimming.
December 4th, 2008 at 10:48 pm
FUKIN STUPID IDEA
January 8th, 2009 at 1:21 pm
The Spiraling Partially Negative Offset Blades seem to capture the wind with more authority and use its pushing force to the utmost,
An Excellent Design and Fascinating to Observe !
January 9th, 2009 at 2:16 am
if thats not dangerous i don’t know what is
January 20th, 2009 at 1:25 pm
This design has been around for a very long time.
These things can spinviolently fast on windy days, it would cause a hazard to someone standing by it on the ground..
Although this does say it’s a test..
February 9th, 2009 at 9:48 am
My suggestion would then be… DON’T stand NEAR it! What ever happened to personal responsibility? I say: Put them in every playground across America!
March 8th, 2009 at 1:57 pm
Standing by a fire can be dangerous as well as crossing the road or driving a car. Roundabouts in kids play grounds are dagerous as well .Each year in the uk alone 100 people die from tripping over their own underwear.
March 10th, 2009 at 12:40 am
Nice. What is the power?
March 13th, 2009 at 1:11 pm
What I like about the vertical axis wind turbine is that it catches the wind that can be blowing from any direction and no one ever knows where the wind is coming from. Although seems that some times half way thru the spin the blades has to pass thru a stall situation.
March 31st, 2009 at 7:46 pm
HUAUHAUHAHU
Yep will be so cool see this sharp blades in the parks.
UAHUSUAHSHU
This one is much close to the ground will not gain much speed, but if put this a little higher you will have a potato Cutter… LOL
anyone know if this is good cuting potatos?
May 19th, 2009 at 8:39 pm
How much does it cost to build one of these?
June 22nd, 2009 at 11:01 am
I think it’s great that you have decided that. Feel free to contact me if you have more questions on how to build your own wind turbine.
November 21st, 2009 at 9:01 pm
thank you. living in fear is death. lifes only fun when there is risk and really, 95% of the time, theres no real risk if you focus on what youre doing. nothing great is done with the motto, ” better not do it cuz something bad may happen”