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Forum Index : Windmills : horizontal vs vertical axis trubine
| Author | Message | ||||
| tomqu7 Senior Member  Joined: 09/11/2012 Location: AustraliaPosts: 168 |
some sites n state vertical are better more efficient less wear more electricity other sites say horizonatl are better ???? |
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| electrondady1 Senior Member Joined: 12/02/2009 Location: CanadaPosts: 208 |
i like vertical mills because of the way they look but any site that says they are more efficient than a horizontal is blowing smoke a Darrius type may out perform a horizontal farm type mill for efficiency i doubt it would for longevity. |
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| tomqu7 Senior Member Joined: 09/11/2012 Location: AustraliaPosts: 168 |
darius would be expensive with airfoil blades how much is a big one 50 kw 100 kw they state that they produce more electricity than an hawt is this right i just got a quote for an aerolos at $52 kfor 50 kw and 100 kw at 1111111 etc |
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Darius's have many engineering challenges beyond the home builder. Yes they can make as much power as a HAWT, but are difficult to control and maintain, which is why you wont see them at any recently built wind farms. HAWT's are easier, much easier. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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MrDelanco Senior Member Joined: 12/11/2011 Location: United StatesPosts: 101 |
I have a Darius system that is working very well for several years now, and any home builder can build it. What engineering challenges are you referring to ? And I found they can make as much or even more power as a HAWT, at a lower speed and are not difficult to control and maintain if designed properly. MrDelanco:Project Videos It is not only too know what it does but to understand how it does what it does. |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
The engineering difficulties relate mostly to large scale systems, but small Darius's also offer problems compared to a standard HAWT. It's the reason Darius turbines are rarely seen. They can make more power, true, but are much harder to build compared to a HAWT. The full size Darius turbines were abandoned because of the low frequency vibrations destroying bearings and blade assemblies, and several cooked brake assemblies. A HAWT has a relatively smooth cycle per revolution, a Darius has several power pulses per cycle. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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