Lenz2 (Modified) VAWT on PVC Post/Shaft

For More: http://onesheetwind.com/projects/

This is a little tiny Lenz2 VAWT I built today. I mounted it on some captive berings as shown in my other video, then decided I wanted to see it on a post.

The bearings here are very similar to the set I demonstrated but a coupling is used instead of a cap at one end of the assembly, and then the long piece of large pipe can be attached outside of the shaft.

As shown in this video the small PVC will bend in the wind, it's not a great material for this. If I was going to affix this or a similar arrangement to my house I would build the assembly with steel pipe. With bearings at each end of the outer shaft, a 2-inch steel pipe could support a turbine much larger than this with no need for a cage or a top bearing.

I say this is a modified Lenz2 because I made it with pieces I had here, so the proprtions are not to spec. The round wing tips are narrower than the plans specify on proprtion to the wing length and overall rotor diameter, so I moved the wing plates to a 12 degree angle instead of 9 to compensate a little. Also the blades are slotted into the hubs, and the PVC arcs are attached with hot glue. So, not really an outdoor toy here in the blazing southwest. For a prototype and my first build of the Lenz-type wing it was pretty fun.

There is very little wind in this video, gusty breeze at less than 3 mph.

Category:

Science & Technology

Tags:

• renewable
• energy
• Lenz2
• VAWT
• wind
• electricity

[5Fiend]

use a lift devices (lift airfoils) they will perform mutch better than drag devices...

[ufoengines]

COOL!