Video: VP100 Wind Turbine at Full Power
Labels: Darrieus, green power., vawt, vertical axis, wind turbine
Our Mission
Manufacturer of commercial scale distributed generation vertical axis wind turbines for the 21st century.
About Me
- Name: J. Mackenzie
- Location: Albuquerque, New Mexico, United States
VAWTPower Management, Inc.(VMI)
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- VMI To Host Booth at RENEW 09 Conference
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- Clines Corners Turbine Development Continues
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- A VMI windsmith prepares the new 1200 rpm generato...
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4 Comments:
Looks nice. Just wanted to leave the URL of the McKenzie Bay website which announced that their Ishpeming, Michigan project is under construction and they have signed up some 8, soon to be 16, schools in upper Michigan to also install one. Their VAWT is about the same size as yours. Here it is: http://www.mckenziebay.com/ . Best of luck. We are IntegEner-W at: www.integener.com .
By
Tony Chessick, at 6:35 PM
Our information is that the Ishpeming VAWT Project has not been completed and is on hold.
By
J. Mackenzie, at 10:48 AM
Michigan seems to have some excitement over this project and those of other wind companies. A pic of a large crane building the turbine is on the website home page or is that just a drawing, something that has been created before by these eager beavers. We are all proud of your work and hope it helps prove that there is a spark of life in vertical axis, something with which we here have experimented on a small scale.
By
Anthony Chessick, at 7:21 AM
Here is a difficulty. We found some trouble on our small verticals with the shaft. The turbine design allows the wind to put a bending moment on the shaft just above the top bearing as it is rotating. This bending moment can be quite high and it increases with rotor rotation rate. Ours broke a couple of times even with a steel shaft. The rotor fell to the ground each time and was ruined. I would guess that your turbine will eventually fail this way as well, which would be catastrophic. Some verticals have a balanced design with as much rotor above the bearing as below so as to eliminate this bending moment. Somehow I didn't see this problem before but now recognize it especially since it happened to us. Hope this makes sense and I welcome a response as to how this question has been addressed so as to assure that it won't happen. See http://www.wind-sail.com/ for their rotor design and discuss it with Rick Halstead of Empire Magnetics.
By
Tony Chessick, at 9:16 PM
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