Check out this new dual rotating wind turbine

Discussion in 'Start here' started by BeachBum, Jul 24, 2010.

  1. BeachBum

    BeachBum WindyNation Engineer

    Korean inventor patented this new wind turbine that has counter rotating blades. Really cool idea!

    http://www.youtube.com/watch?v=VYMp50uVKCU
     
  2. windyguru

    windyguru WindyNation Expert

    Cool but actually Doug Selsam already has a patent on that. And his design is better because each blade rotor is able to capture clean wind that has not been disturbed by the rotor in front of it.

    http://www.speakerfactory.net/turbines/

    http://www.popsci.com/node/21640 (I think it was actually the Popular Science Invention of the Year)

    I talked to Doug on the phone about 6 months ago. He is a very interesting and cool guy with A LOT of wind turbine knowledge.
     
  3. BeachBum

    BeachBum WindyNation Engineer

    Josh,
    I've seen selsam's turbine before. Unless I am mistaken, his has several blades on a single rotor shaft. If you look at the video from the Korean turbine (from 45 sec. - 1min. 5 sec.) you will notice that one blade set rotates the stator in the opposite direction that the rotor shaft is rotating on the second blade set. This doubles the RPM's, also doubling the power produced. Sorry the link was not working on my first post. Click on this one. [color=#FF0000]http://www.youtube.com/watch?v=VYMp50uVKCU[/color]
    BeachBum
     
  4. BeachBum

    BeachBum WindyNation Engineer

    You may have to cut and paste the link. It still doesn' work. What am I doing wrong?
     
  5. windyguru

    windyguru WindyNation Expert

    I see it now. It is very interesting. I wonder how much it adds to the power production?

    You would think it would not be that much of a technological leap for them to put the trailing blades in their own wind. They would just need to angle the rotor .... Kind of like Selsam's turbine.
     
  6. BeachBum

    BeachBum WindyNation Engineer

    True, all these are very cool ideas. What am I doing wrong adding the link? BeachBum
     
  7. windyguru

    windyguru WindyNation Expert

  8. BeachBum

    BeachBum WindyNation Engineer

    Josh,
    If you look at the third post on this page with the red text in between the URL's, it doens't work on my side. Maybe some bad mojo. I'll keep trying.
    Thanks, BeachBum
     
  9. Jorge




    I just bought a windtura 750 and still don´t know how the installation works. I´m using it as a hydraulic plant. I have a little flow, but I could get 52V at almost 600 rpm. I need to use the electricity directly from windtura 750. I have a rectifier and a 24 v power inverter. I don´t want to use batteries because I can control the flow and also the rpm. What cant I do?​
     
  10. windyguru

    windyguru WindyNation Expert

    Jorge,

    Please post your questions or comments in the appropriate section. I do not believe there is any way that you can connect the rectified electricity from the Windtura 750 directly to a power inverter. You need to use a battery bank and then connect the inverter to the battery.
     
  11. But I could do this.[​IMG]
     
  12. That´s what I actually did, but the power inverter broke down.
     

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