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483
at http://www.wikidot.com/ you can create an account in no time. then, at http://savonius.wikidot.com/ you can see my new wiki on building savonius windmills....
mtheoneandonly
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Jun 4, 2007
3:57 am
484
I just got my magnets in today. Wow are they strong!!! I walked into the houseboat with them and the tv went haywire...I was over four feet way... I feel sorry...
Jim Carlson
jimcarlson622
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Jun 5, 2007
7:05 pm
485
That would be perfect if you had an annoying apartment neighbor who played his TV too loud - just mount the lot of them on the wall opposite his TV and listen...
Michael Vanecek
mikevanecek
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Jun 5, 2007
9:07 pm
486
It would be fun to mess with some one like that...hahaha But I live in a salt water pond WAY away from other people........and I'm loving it! It gives me...
Jim Carlson
jimcarlson622
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Jun 5, 2007
10:02 pm
487
... While cleaning some with acetone, they slid together and shattered like glass. Be careful. JP...
John
dbsleder
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Jun 6, 2007
10:53 am
488
It sounds like the beginning of a DEW, I once built a 440 tx using some old VT's, i beleive they were 8025's, I inadvertatly wiped out my nieghbors satelite...
Sol Power
solpwr
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Jun 6, 2007
10:54 am
489
... BEWARE: Car alternators run a few thousand RPM, windmills don't. David G. LeVine Nashua, NH 03060...
David G. LeVine
sirdave144
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Jun 6, 2007
10:57 am
490
Hi, I thought I'd asked this question here before but I cant find it now. Is there a solid correlation between the mumber of magnettic poles on the Rotors and...
Dragon
teeth_o_the_...
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Jun 6, 2007
1:26 pm
491
I'm kind of new myself, having only studied this for a couple of years, but this is whatt I've learned: Generally speaking more coils mean more power generated...
Dan
qazxcvb21
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Jun 6, 2007
3:00 pm
492
OK, That makes sense... Many thanks for that. I'm looking at using the device to charge a 12v FLA (Flooded Lead Acid) battery pack. So I don't need a HUGE...
Dragon
teeth_o_the_...
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Jun 6, 2007
5:17 pm
493
... Most people think of coils as round but they are actually wedge shaped, with the sides being straight and slightly longer than the magnets. There are...
Dan
qazxcvb21
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Jun 6, 2007
6:06 pm
494
Gee, I wound 200 turns on the coils I made, using #22 wire and get about 2 volts per coil. What did I do wrong ? wombat...
Neil Dennis
wombat_eagle
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Jun 6, 2007
7:33 pm
495
how much gap between the coils and the magnets, how fast are you turning the magnets, did you alternate polarity of the two magnets passing by the coil, are...
Steve Spence
sspence65
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Jun 6, 2007
10:04 pm
496
In a axial flux, you always have magnets on either side of the coils. I have not ever seen burnout, but then we don't let these things run away. Steve Spence ...
Steve Spence
sspence65
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Jun 6, 2007
11:28 pm
497
Interesting questions, Steve. The coil to magnet spacing is about 1/16" or so, the magnets are mounted with alternating fields on about a 6" diameter 1/20"...
Neil Dennis
wombat_eagle
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Jun 7, 2007
1:28 am
498
Steve, funny you should mention burnouts. I was reading a few weeks ago about Hugh Piggot cooking a coil in one of his machines. I thought it funny since he is...
Dan
qazxcvb21
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Jun 7, 2007
2:28 am
499
... That may be why some of us are getting higher voltages! Most are using neodymium magnets rather than ceramic. The field density is a lot higher. Field...
Dan
qazxcvb21
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Jun 7, 2007
2:29 am
500
Steve, just doing a pencil sketch of 10 magnets and 3 coils, I don't think they really "sync" with all coils passing magnets at same time in rotation. So I'm...
Neil Dennis
wombat_eagle
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Jun 7, 2007
11:58 am
501
Hi, the coil voltage depends on: PMs remanence, airgap, section of the coil, number of turns in series by coil. So, if you know the values of these parameters,...
jaouad azzouzi
jaouad_azzouzi
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Jun 7, 2007
12:45 pm
502
Hi, and thanks for that. I was aware of the wedge shaped form of the coils, but the information about number of turns is helpfull. If I'm reading it right...
Dragon
teeth_o_the_...
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Jun 7, 2007
3:11 pm
503
The resistance of the coil is loss. All other things being equal less turns and higher speed would see less alternator loss. I suspect optimizing gear loss is...
Kirk McLoren
kirkmcloren
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Jun 7, 2007
4:31 pm
504
... Be careful since the wire gauge will vary depending on the type of insulation. Some insulations run LOTS hotter safely. David G. LeVine Nashua, NH 03060...
David G. LeVine
sirdave144
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Jun 7, 2007
9:06 pm
505
number of layers makes a difference too. They actually make square magnet wire for those wishing the best packing density. "David G. LeVine"...
Kirk McLoren
kirkmcloren
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Jun 7, 2007
9:29 pm
506
I picked up a set of 24 N50 neo magnets like this on eBay: 110092950419 They are mounted on two 5/16" X 12" steel rotors drilled for 5 bolt Chevy Cavalier...
Jan Nelson
elcie745
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Jun 8, 2007
12:14 am
507
don't forget the need to have magnets on both side of the coil pack. Steve Spence Director, Green-Trust http://www.green-trust.org ... From: "Dan"...
Steve Spence
sspence65
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Jun 8, 2007
12:42 am
508
if you have a runaway wind turbine, it could happen. by having a sufficient wind vane to turn the blades out of the wind, and lowering the tower during ...
Steve Spence
sspence65
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Jun 8, 2007
12:46 am
509
I read over at otherpower that they were testing the temp sensors in the magnetos... Was the test good or did they have to do some thing special to the sensor?...
Jim Carlson
jimcarlson622
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Jun 8, 2007
2:07 am
510
I have been beating my head trying to figure out how I can come up with some disk that are at least 12 inches around. A little bigger wouldn't hurt... I really...
Jim Carlson
jimcarlson622
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Jun 8, 2007
2:13 am
511
... In theory, thermocouples on twisted pair wiring should not be affected by the changing magnetic field. If they use standard thermocouples with parallel...
David G. LeVine
sirdave144
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Jun 8, 2007
1:22 pm
512
That's interesting, this is the wire I was intending to buy. http://www.maplin.co.uk/Search.aspx?criteria=enamelled%20wite&source=15&SD=Y I haven't completely...
Dragon
teeth_o_the_...
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Jun 8, 2007
1:45 pm
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