Jump in wind power efficiency?

[Truthseeker]

Any comment? http://world-harmony.com/max-velocity-turbine/ (checked by Norton safe search)

[HMS_Beagle]

Any comment? http://world-harmony.com/max-velocity-turbine/ (checked by Norton safe search)

Any claim to have made a wind turbine 10x more efficient than any ever produced should be taken with a 10lb sack of salt. Let them build one and demonstrate it before coughing up any $$$

[klaus54]

Any comment? http://world-harmony.com/max-velocity-turbine/ (checked by Norton safe search)

Isn't one supposed to give at least a short synopsis of the content of linked to site?

[klaus54]

Any claim to have made a wind turbine 10x more efficient than any ever produced should be taken with a 10lb sack of salt. Let them build one and demonstrate it before coughing up any $$$

What does "10 times more efficient" mean for wind turbines?

There's a limit called Betz's Law:

Source: https://en.wikipedia.org/wiki/Betz%27s_law

...
According to Betz's law, no turbine can capture more than 16/27 (59.3%) of the kinetic energy in wind. The factor 16/27 (0.593) is known as Betz's coefficient. Practical utility-scale wind turbines achieve at peak 75% to 80% of the Betz limit.[2][3]
...

© Copyright Original Source

[Leonhard]

An ideal wind turbine can only collect around 60% of the energy of the wind passing by it, and modern wind turbines are managing roughly 40%. So the basic claim in the article that wind turbines only use 3% of the energy is false.

[Truthseeker]

An ideal wind turbine can only collect around 60% of the energy of the wind passing by it, and modern wind turbines are managing roughly 40%. So the basic claim in the article that wind turbines only use 3% of the energy is false.

References/citations please.

[HMS_Beagle]

References/citations please.

A good explanation can be found here.

Wind Turbines and the Energy in Wind

[Poor Debater]

This is just-another high-solidity wind turbine. Like all high-solidity wind turbines, they DO start up at slow wind speeds, and they DO have high torque. But they are NOT more efficient overall than propeller types, and the propeller-type advantage increases as wind speed increases.

Not a breakthrough. Not even much new.

[klaus54]

References/citations please.

Post #4

...Practical utility-scale wind turbines achieve at peak 75% to 80% of the Betz limit

[Truthseeker]

The article introducing the MV Turbine is not clear. However it seems that the comparison of performance between conventional turbines and the MV turbine is meant for wind speeds substantially less than 8 mph.

Maybe the key metric is the cost of power. I have an hunch that the MV Turbine has an advantage there, as long as average wind speed is substantially less than, oh, 10 mph. But the article is vague.

[Leonhard]

But seeing as wind power scales is proportional to the third power of the wind speed, if you reduce the windspeed from 10mph to 2mph, then there's less than 1% as much power to be gained.

[Truthseeker]

I now strongly suspect that the MV turbine would take too many years to pay for itself, if ever.