Magnetic Levitation VAWT

This vertical axis wind turbine uses a permanent magnetic bearing to support the vertical forces. Only small conventional bearings are needed to support the side forces. Next additions will be hall effect sensor to log rpm and PIC processor to record RPM, voltage and current
and allow us to cross correlate with our weather station wind data which is being archived. This will allow us to determine whether design modifications help or hinder power output.


Neodymium ring magnets (2" x 1/2") are used for the actual levitation. These same magnets are used in the alternator thus reducing the number of different parts needed to build the turbine. Small roller blade bearings are used to handle the side forces.

http://berezintechnologies.com

Category:

Science & Technology

Tags:

• VAWT
• Magnet Levitation
• Magnetic bearings
• gyromill
• Green Power

[littlelogcabins]

Friend, how much would you charge me to build one of these?

[embeddedprogrammer]

@littlelogcabins $2500 for one this size. More for one 8 foot tall which will produce more power.

[DustanMcKee]

Thanks for posting this, it is pretty awesome. I was wondering if you could go into more detail about how the small roller blade bearings are used to handle the side forces. Would love to see another video with close ups of the mechanics.

Thanks

[embeddedprogrammer]

@DustanMcKee They are roller blade bearings with pvc pipe fittings around them, just to handle the horizontal forces. The entire weight of the system is supported by two neodymium magnets on the top of the pole and glued in the pvc top cap.

[OfCourseImNormal]

I noticed you share the idea of mimicking a radiometer with white & black to gain a hair more rpm.

[embeddedprogrammer]

@OfCourseImNormal No, that is tape over a flaw in the waterproof coating

[Plaastek]

Nice build man. inventive with the levitation.

But I must say I think your side bearings will wear out pretty quick. I would try build something bigger and slower moving. Also I think the cost of the big ND magnets for levitation is a waste.

look at the bearings this guy used. Just plastic stuff, super cheap and handles very high weight. watch?v=9UPe6A_UVPc

The only time I would go with magnetic levitation is if you can make the whole thing magnetic so theres no physical contact at all :)

[johnnnyreb51]

It looks great. I would however reinforce the mounting pole.

[Gunner3210]

How much power(watts) can you get with that when it's going that fast in the video?

[skunksnag]

Free energy make me go shwang

[embeddedprogrammer]

@dontheawesome magnetically

[embeddedprogrammer]

@Angelen not sure. I will be making a bigger one of these soon and monitoring output.

[Angelen]

how much energy will be generated from a 5 mph wind speed for 1 hour?