Energytower AB is a Swedish company that develops a new technological platform for wind-based energy production.
Energytower's objective is to offer a combination of far reaching competitive advan...
Energytower AB is a Swedish company that develops a new technological platform for wind-based energy production.
Energytower's objective is to offer a combination of far reaching competitive advantages: * low overall cost of energy production; * flexibility with regard to location and application; * environmental and human friendliness.
Energytower is a new wind energy technology. In essence, Energytower is a controlled reproduction of a tornado inside a cylindrical tower.
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.
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they are saying that its starts at 4meter p second ,use it on rooftops,no disturbing rotors,birds can see it,can be used in citys with no problems,the angle on the tube is 3degrees,because the wind needs to turning inside tube and get out on the top of the tube,more wind to get in more wind to get out,the sise is about 30-90 meter high,its stands the wind up to 40meter per second,its the best translation i can do :-)regards cato
It might be easier to extract energy from a faster moving air stream, I would not know, but increasing the wind speed is not adding more energy. This device is very sensitive to wind direction, as he himself admit, the angel of it is part of the reason the air flow increases speed. I wonder if a equally big funnel would have the same effect.
I know, Swedish isn't my strong point either. I have contacted them by email and requested an English version. As soon as I get it, I will post it here.
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I have contacted them by email and requested an English version. As soon as I get it, I will post it here.