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Afghan designed permanent magnet alternator | 8 comments (8 topical, editorial)

Re: Afghan designed permanent magnet alternator (3.00 / 0) (#6)
by cslarson on Thu Aug 14th, 2008 at 11:40:51 AM MST
(User Info)

thanks for the response.
the outer ring of magnets are on the inside of a band of steel from a pipe. the pipe was originally something like 15mm thick and he had it machined down (to 6 or so i think). i think that piece of steel set him back $60. the inner ring of magnets are attached to the rim of the wheel covering about 70% of their face. so i believe there is magnetic circuit but i would not really know if it was enough or to what degree it might hamper the performance.
the plates for the axial construction were going to cost about $100 each. i would say that cost was the main motivator for taking this approach, though he also saw what i had done with the induction motor conversion and thought it was less efficient because the coils are faced by magnets on only one side. he said it took him 2 months to make this. i have yet to hear him say how much he would want for one though i am interested.

[ Parent ]

Re: Afghan designed permanent magnet alternator (3.00 / 0) (#7)
by Flux on Thu Aug 14th, 2008 at 02:09:27 PM MST
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The 6mm steel on the outer magnets will be ok. The inner circuit is far from good but much better than nothing. I think it should work OK.

Flux

[ Parent ]

Re: Afghan designed permanent magnet alternator (3.00 / 0) (#8)
by vawtman (vawtman(at)charter(dot)net) on Thu Aug 14th, 2008 at 04:36:04 PM MST
(User Info)

Hi Carl
Did he run a test coil before building the stator?
Are the mags the standard 1x2's N?
How are the blades hooked up?
Do the stator bolts(steel) enter the mag feild?
Why the 20/16 arrangement?
What diameter is the inner rotor?

Anywho very nice and sorta what i'm building.Just hope mine is has pretty :v)

Mark

[ Parent ]

Afghan designed permanent magnet alternator | 8 comments (8 topical, 0 editorial)

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