Lasted edited by Andrew Munsey, updated on June 15, 2016 at 12:52 am.
The Energytower is said to be a controlled reproduction of a tornado inside a cylindrical tower.
Commercial delivery planned to begin in 2008.
http://www.energytower.se
Sales - "Delivery is planned to start in 2008. Until then, specific tests and key customer projects are given priority. Orders may be placed but at this point no guarantees of delivery can be given. As for licenses for research and development, production and/or sales, please contact us with your enquiry."
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EnergyTower - Sveriges Television "Vädrets makter" - Television coverage of the technology. (YouTube November 13, 2007)
Air hitting Energytower is led into it and accelerates as the tower's inner radius decreases. Inside the tower, a vertical-axed three-blade rotor starts to rotate. The accelerated air increases pressure and temperature along the inner walls of the tower, generating a relative pressure drop in the middle of the tower – the eye of the tornado. The pressure gap creates a chimney effect in the tower which also adds to the rotation of the rotor. The low pressure in the middle of the whirl enables a fast release of air from the tower whereby new air can be taken in.
This feature page is first posted by Congress:Founder:Sterling D. Allan.
"The vertical orientation of the turbine means that all heavy parts such as mechanical parts, the generator, and other electrical equipment can be placed at ground level. This makes the construction much lighter, and cheaper to manufacture and maintain. The end result is energy production at a competitive cost." http://www.energytower.se/index.php?option=com_content&task=view&id=15&Itemid=35
The company cites the following advantages:
low overall cost of energy production.
flexibility with regard to location and application.
environmental and human friendliness.
list here
list here
list here
Energytower AB is a Swedish company that develops a new technological platform for wind-based energy production.
Inventor, Eric Stiig stands next to his prototype tower.
Press coverage index page on company website.
Eric stiigs vindkraftverk fungerar som en tornado (282 KB PDF) - (Nummer 5, 2007)
See Talk:Directory:EnergyTower AB Wind Turbine
On Feb. 8, 2008, New Energy Congress member, Congress:Founder:Sterling D. Allan wrote:
The primary weakness I would anticipate for this system would be in getting it to turn to face the wind.
Directory:Solar Tower - Solar Towers are like an inverted funnel, with a wide skirt to collect air to then turn a turbine in the tower.
Directory:Michaud Atmospheric Vortex Engine - Louis Michaud's atmosphere vortex engine would harness waste heat from power plants and other heat sources, creating a stationary tornado and capturing the rotational force.
Energytower AB
Box 44019
SE-100 73 Stockholm
Sweden
Jonas Thurdin
Sales and business development
+46 736630500
Directory:Vertical Axis Wind Turbines
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