the Otherpower.com Discussion Board || Comments Newbies 1st PMA

Front Page - [Homebrewed Electricity-- (wind) (solar) (hydro) (steam) (controls) (storage) (mechanical)] - Classifieds - Site News
Everything - Newbies - [Remote Living-- (housing) (heat) (light) (water)] - Rants & Opinion - Diaries - Our Products

Newbies 1st PMA | 7 comments (7 topical, editorial)

Checking my Math (3.00 / 0) (#7)
by TheCasualTraveler (a.miklos@yahoo.com) on Wed Jan 2nd, 2008 at 06:23:51 PM MST
(User Info) http://thecasualtraveler.com/wind.htm

Well, my first mill is off and flying and I have mixed emotions. On the one hand my goal was to produce a working PMA no matter how small the power. I just wanted it to work so I could experiment with it and learn more and it did in fact work right from the start. On the other hand I naturally wated it to perform better than I hoped for and of course it performed well below what I expected. No matter. I wanted to learn so now I am analyzing it and going over the math. If anyone can take the time to check my numbers I'd appreciate it. I listed most of the specs in the first post of this thread, I will repeat some.
There are 9 coils, 3 phases wired star. Each coil is 120 turns of #22 wire and weighed in at 70 grams. That makes 210 grams per phase.
210 grams = .463 lbs. per phase.
#22 wire has approx., .195 lbs per 100'
#22 wire has 1.614 ohms per 100', so

phase = appro. 237' of wire
' of #22 wire should have about 3.83 ohms of resistance.

Now here I'm less sure but at 12.4 volts and 3.83 ohms 1 phase should put out something like 3.24 amps max?

Now to figure how many amps the PMA can put out do I multiply 3.24 x 1.7** ?

We have had 10 to 20 mph, fairly steady winds for the last 2 days, what I think would be optimum conditions for testing, and this thing put out about 1.64 amps max. and mostly around .33 amps. I was hoping to see 20 to 50 watts and what I got was 4 to 20

I know this newbie stuff makes you guys nuts but I'm really trying here. Let me know what you think.
Andy

Newbies 1st PMA | 7 comments (7 topical, 0 editorial)

Menu

· create account
· How to use the board
· FAQs
· search the board
· Google search the board
· Old Otherpower Board

Login

Make a new account

Username:

Password:

You must be a registered user to post here. It's easy and free, and the link is on the upper right side of your page.
All trademarks and copyrights on this page are owned by their respective companies. Postings are owned by the poster, but may be deleted or moved at the ADMIN's sole discretion. The Rest © 2003 Forcefield.
You can Email the board ADMIN here. PLEASE include the username you signed up with!