HomeGreen energyCan vertical axis wind turbines become successful?


Can vertical axis wind turbines become successful? — 14 Comments

  1. The disadvantages you list for VAWT are not accurate. VAWT come in wide variety of designs. Some have problems that others do not. So generalizations about all VAWT are likely to be contradicted by some VAWT. You might be interested in learning about my Sharp Cycloturbine and my Bird Windmill. Also check my paper on line about “how VAWT could replace HAWT” where I mention some special advantages of VAWT.

  2. Thanks, Peter. I just gave my article a brief once-over-lightly, but I think I listed disadvantages for the earliest generation of VAWT and acknowledged that research continues. The diagrams in your article look vaguely familiar. I may have either looked at your article or a patent or something as I prepared my article. I certainly realize it’s not an exhaustive treatment.

    For anyone who wants to follow up, here’s the link: https://www.windpowerengineering.com/business-news-projects/vawts-replace-hawts/

  3. I have built several versions of the Sharp VAWT Cycloturbine, bird windmill etc. It works very well, and pulls like a truck. It is best used in straight line wind conditions

  4. Thanks Allen,
    That’s not a design I remember reading about. I see that I invited readers like you to submit links to other VAWT designs besides what I described. You didn’t provide a link, but I easily found a couple based on the name of the design. Sharp himself comments extensively in the comment section of this basically anti-VAWT post: http://scoraigwind.co.uk/2016/12/what-is-it-about-vertical-axis/

    Here’s another link for downloading a more extensive document by Sharp: https://www.scribd.com/document/184707635/Sharp-Cycloturbine I don’t know how much it costs, but it’s not a free download.

  5. The Sharp Cycloturbine and the Bird Windmill (another type of cycloturbine) are too difficult to analyze mathematically. For uptodate information based on my experiments and analyses, contact me for my papers on them at sharpencil@sbcglobal.net . They can be hard to understand, but they are easy to make if you can follow simple directions.

  6. Thanks again, Peter. I do hope some VAWT design will be able to compete with our oversized HAWTs before too long.

  7. I think I have now solved the hazy system that was not found before as how to make this kinda H-Darrieus really work effectively and self start etc.

  8. Thanks for this excellent tiny overview: historical notes and technical details you don’t read on other overview stories (e.g. torque ripple and behaviour of arrays).

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