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Vertical turbine with variable angle blades

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A feature of this vertical wind turbine is the variable angle of the blades depending on the wind speed and, accordingly, the speed of its rotation. The purpose of this design is to start a wind turbine even in light winds and to reduce the load in strong winds.

The master made the upper and lower plates on a polycarbonate CNC machine.


The hinges that connect the upper and lower blades are printed on a 3D printer.


Couplings are attached to the plates in the center. A threaded rod passes through them. Ideally, the rod should be square. Couplings are also printed.




The blades have, on the one hand, a waveform and are also printed on a 3D printer.






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4 commentary
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Reply To quote A complaint
There is no point in changing the angle of the blades in vertical turbines, this is the monkey work, the reason is that their efficiency is within 10%.
The wind is characterized not only by a speed that gradually increases, but also by gustiness, there is no whistle, no, and suddenly it blows at 20 m / s, then not only windmills but also the roofs of buildings can’t stand it, in the European part there are such winds 3-5 times a year , and now climate change is even more common. To protect against gusts, they use a very quick transition of the blades to the vane mode, in order to know in advance that there is a gust, but sometimes even this is not enough. It is very difficult to create a windmill that can work equally well from a low wind speed and at high, it’s easier to choose from either low or high speed
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pogranec,
As I understand it, he collects money for the implementation of the project
Well, let him be lucky, although an increase in size will cause problems with weight, inertia, strength, etc., etc. ...
Author +1
Reply To quote A complaint
Korolev,
but with such small sizes, the implementation of some practical use raises some doubts
- This is not his first project. As I understand it, he collects money for the implementation of the project.
Note: I already built a large-scale project, but I did not have all the functions that a 3D printer allows me.
Please give me a loan if you like my VAWT, there are many, but this one is mine.
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Reply To quote A complaint
The idea and implementation are great, but with such a small size, the implementation of some practical use raises some doubts! scratch

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