SheerWind Invelox windtube

SheerWind Invelox windtube

This system of capturing, concentrating, accelerating, and harvesting wind power in a funnel is a patented system we call INVELOX™

The SheerWind technology seems to be a cost-effective, high-performance alternative to conventional wind technology. Look at this trending new wind turbine. 

According to Dr. Daryoush Allaei, founder of SheerWind, the industry is looking at the problem the wrong way.

Current wind turbines are really only an optimized step beyond the old sail based windmills of Europe, passively waiting for the appropriate wind.

Out of the box product development

This funnel system called INVELOX turns traditional wind power systems upside down by first using a funnel to collect the wind, channeling that wind to increase its speed, and then delivering it efficiently to multiple turbines safely housed at ground level.

It enables energy to be produced from very low wind speeds of 2 meters per second, in locations close to an end user – even on rooftops in urban areas – and eliminates the need for complex power and grid systems. Because the system is enclosed, it is bird-safe.

This is how the Invelox works

  • Wind is captured at the top of the funnel shaped INVELOX system. The omnidirectional intake area allows wind collection from any direction
  • Wind is funneled through the system
  • Wind is concentrated and further accelerated in the Venturi Effect* section of the INVELOX system. *The Venturi effect is the phenomenon that occurs when a fluid that is flowing through a pipe is forced through a narrow section, resulting in a pressure decrease and a velocity increase.
  • Wind is delivered to the turbine/generators to convert the accelerated wind to electrical power. INVELOX is the first single wind tower capable of powering multiple turbines in a row or series
  • Diffuser returns wind to nature

SheerWind pro’s

Wind speeds required to produce power from traditional wind turbines are a minimum of eight miles per hour. This one not. Read more.

  • The system is able to harvest wind from any direction. As the wind passes through the tower, it’s directed into and through the waist of an hour glass shaped device called a Venturi tube
  • The wind coming out of the waist of the tube is concentrated and traveling at a much higher speed than when it enters
  • The system can increase wind speeds from 300 percent to 1,100 percent, which means that it can start harvesting wind to produce electricity at wind speeds as low as two miles per hour
  • The system is designed around what is called the Venturi effect, discovered more than 200 years ago. The concept has been utilized on automobile carburetors, aircraft instrumentation, and even gas grills for years. Venturi uses a restricted flow to create additional velocity.

Skepticism in the industry

While the system has not been evaluated or tested by any third parties, Sheerwind and its New Zealand subsidiary claim significant results in speed and energy generation after a 22 day review of the Iranian installation in Manjil.

There is skepticism in the industry that any new wind technology can surpass Betz’s law, which holds that the maximum power that can be extracted is 59.3% of the wind’s kinetic energy.

According to SheerWind, the INVELOX is scalable, equally suitable for use in major wind farms or micro-generation settings. It will produce power effectively at much lower wind speeds than current systems do, which means it has a dramatically wider geographical range.

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2 Responses to SheerWind Invelox windtube

  1. Steve Hendh says:

    As of January, 2018, the poor results from this technology’s few installations became overwhelmingly obvious, even to those without out the skills or toolbox to work out that the machine’s performance expectations were based on imaginary and erroneous physics.

    What is partly sad about this debacle is how so many renewable energy publications fawned over this ill-conceived approach, demonstrating that they apparently have no capability to ask the important technical questions about the technologies they write about.
    Fortunately, at least 2 publications, “Clean Technica” and “Wind Works” provided more objective reviews of this technology.

  2. Gerald Maguire says:

    Collecting Urban wind kinetic energy is difficult if not wholly ineffective because of unstable wind. It is not an appropriate observation that it requires a comparison of the Venturi turbine with one the diameter of the wind collector. What is pertinent is that involex ‘collects’ kinetic energy of a certainty quotient in an difficult urban context as a separate and distinct process. Having collected this energy’, which a freestanding Wind Turbine would not be able to achieve in that situation,, it is this energy quotient which require conversion to electrical energy. Involex is slated to achieve this. The amount of conversion from kinetics to electrical energy is another matter and its effectiveness of otherwise should be assessed as a distinct issue and judged separately. This is the point that is being MISSED in WindWorks and other reviews – put simply.

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