Stator and Rotor how to make help needed!

[infringer]

Now we are getting somewhere starting to pick up some things along the way...

OK first question the number of 13% efficient where did you get that data ? Is there some kind of efficiency chart or something for wind turbines?

What type of rating do other turbines have?

Great thinking truck flaps are rather rugged indeed...

Maybe if I put swiss cheese holes along the region there is back pressure with a drill bit and on the inside put a truck flap or something similar it will do me some good while still maintaining structure ...

What are your thoughts on that ...

I am still worried about weight because it has to make a big difference the more I think about it the more it makes since.

EFFECTS:
- Start up speed
- The amount of time before next service
- Places more friction on every joint and bearing

Hard telling what else... I have not mentioned for sure ...

But I suppose if I set up a date with a wind turbine shes gonna have to put out !!!



EDIT: the wind coming in on that curve may blow the flap open when it is trying to catch wind which would kind of equalize the effect a bit just thinking out loud here I figure you have to view the pluses and minuses of everything and not turn a blind eye.

[Michelinho]

Hi Infringer,

The reference to the 13% efficiency is in this post:
http://www.overunity.com/index.php?topic=7169.msg169025#msg169025

As for the flap staying open, I don't think there will be a problem since when the edge of the barrel half start to get in the positive pressure position, the curve form will create vortexes that will act on the flap(s) to keep it close.

A conventional propeller windmill can get up to 30% efficiency depending on the blade system used, from the same site where the document came from.

The inherent weight of the Savonius setup calls for a strong central shaft and cone bearings, roller can't be used as they would fail, they are made to work in a horizontal setup. If the bearing are lubed with light oil (felt washer below in a plastic cup (plastic jar cap jammed under and touching) to act as oil reserve) start up speed won't be affected or not much.

Take care,

Michel

[infringer]

YIKES!

7watts of power an hour

Screw this I don't see how I missed that I could purchase solar cells and tab them cheaper then I can build this turbine and that is with the enclosure for them... I am not impressed at all my little 1ft by 2ft solar panel puts out 10 watts of power and that costs less then 100bux to build and that was because I used expensive plexiglass I could have built it for roughly 20bux...

OK so here I am back to the drawing board!

I want a cheap solution to going green not too much to ask but it seems as if every which way I turn someones just out trying to make a buck off you... Starting with X10 home automation which is JUNK little do they tell you that you have to couple your phases in order for things to work properly throughout the home whew how about a few more hundred for an electrician while your at it not to mention the hassle of getting your electric co. to disconnect your meter...


I don't see how I missed your original posting...

By the way I was thinking of only lapping the barrels half way I dont know if that makes a difference in power production or not?

What can I do to generate a fair amount of power at lower winds preferably without erecting a tower 7watts is just not worth the efforts and investment I wanna see a quicker ROI ...

[Michelinho]

Hi Infringer,

Any mobile home park around your place?

Get a complete axle with wheel drums and you can probably get away with as low as $50.00. You would get 4 bearings and race, 2 nice spindles and a tough shaft where you could weld side arms for holding at least dual barrels Savonius. That would be as cheap as you can get. We bought a few many years ago with rims and tires for not much than that to make a trailer for a 35' boat. You can weld supports on the wheel spokes for the external support or simply go with guide wires for the top part.

Cheaper is get a small trailer that someone wants to scrap and use the parts in the same way.

If anything else comes to mind, I will post.

Take care,

Michel

Edit: Mount the barrel halves 90 degree from level 1 to level 2 and get a lower start up speed.

[infringer]

Yes there sure is a mobile home park around my place but no one wants to get rid of anything around here it seems I dunno why...

Everyone pack rats stuff I mean stuff you would never expect them to but anyhow...

Do you think this will result in a better output? I'm looking for a decent power curve obviously I will be using plastic barrels so as for rust that will not be an issue.

They have 32 gallon trash bins rubber maid at walmart locally for 10bux a piece might also be worth it if my barrels do not show. I have a lot to accomplish here actually even for a simplistic design ...

I thank you for staying with me though it appears cflguy has jumped ship I must have said something that stired em wrong or maybe I was a bit too dumb I dunno...

I am trying to do this right the first time I guess and I know there are others who have been down this road who can share things with me. To save time and money.

I may be taking a trip to locate some barrels without chemicals here tomorrow hopefully I can get these folks to sell the barrels.

I may stick with two high as well because the issue of stability ...

The other thing i would love to try is hanging coils from string and having them swing over a magnet and only allow a limited amount of movement say maybe see what kind of power this could bring it would be super easy to build and test and would resemble the elastic flutter design but on a larger scale... That's just a jot for future tinkering.

I wanna see way more power then 7watts though realistically if I don't generate decent watts average it may not be worth my while to use wind I really need to do some rethinking here if 7watts is the production avg...