Tesnic vs Darrieus - part I
Uploader Comments (horianica)
All Comments (20)
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@leopolis50 А почему конусом вниз?Ведь если достаточно большая длина (метров 20+) то наверху ветреные потоки сильнее, поэтому меньший диаметр надо кверху- чтобы скорость росла.Или есть какая-другая причина?
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Попробуйте сделать эту турбину конусом. Вниз вершиной конуса. Вообще идея хорошая. Удобно ставить такие турбины на high-rise building.
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I am very interested to purchase one as soon as it is available. I have done the math and if it performs only half of your specification the math is good. Well Done.
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-Regarding the shifting winds the vortex is maintained always in the same direction due to the design of the turbine. Moreover during the wind tunnel tests the turbine had 10% increase in performance in turbulent airflow vs laminar airflow. Clearly this applies to the Tesnic turbine (with the disks) and not to the Darrieus type from this video.
-Regarding the cut@1:48 It took a certain time before the rotor stabilized its rotation. We cut that portion as non-essential for the conveyed message.
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two things:
-what happens with the vortex during shifting winds?
- whats with the strange cut @1:48
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I wonder how small they get? Think of a railroad crossing flasher installation. It has to work at all times, so there's a bank of batteries. These carry the load when they're on. The AC power from the utility only recharges the batteries, sub-100 watts. How to cut that utility cord? Typical installation has 2x 15 foot poles which hold up the flashers. On top of the pole(s) could be a small, ducted vertical axis windmill that is so unobtrusive people don't even realize it's a windmill.
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horia, cred c-am mai vazut pe undeva designul asta...daca vrei putem sa-l incercam in Romania...
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It has been proven that a tight spacing will have vortex effects improving on performance.
It might works with an array of your turbines.
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5000$ for some molded plastic?
more like 750€/750w for that size.
take a CF of 30-40% it yields ~2500-3300kwh/a. Some loss for storage and inverter you end up with 165€ of energy at 5cent.
Where I live its more like 19€cent/kwh
I would save 470-630€/a.
Not bad for a 1m tubine...
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felicitari, imi doresc si eu o astfel de turbina . succes
:-) ... you forget to mention suggested retail pricing ... the unit that you show will probably be in the 100W range, maybe even less ... but it's complexity will force you to charge probably $5000.00 or more ... no one who does the math will pay for it.
powerbuoy 3 years ago
The prototype in the video is 600W. Before making other speculations I suggest you visit our website.
horianica 3 years ago
maybe i am stupid but is there a limit on how high they can build these? Could you build one a few stories high or more and really max out the available wind energy in that given vertical space? i am no engineer so pardon if this is a stupid idea.
bhitt99 3 years ago
You are right, to build these turbines at MegaWatts level will be an interesting engineering challenge, but it's not impossible. Imagine the stator vanes as high rise buildings and the rotor in between. A couple of concept buildings integrating large HAWT wind turbines are already in development across the world.
horianica 3 years ago