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Messages 2305 - 2334 of 2606   Oldest  |  < Older  |  Newer >  |  Newest
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2305
power electronics circuitsĀ  tharks.blogspot.com power electronics circuits tharks.blogspot.com...
Tharks V
tharkikan
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Jun 3, 2009
12:19 pm
2306
Work in progress.. My first windmill build 12.5 foot diameter. I am making some progress every few days or so. Like most of you I do not have a lot of time to...
prog_i_am
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Jun 4, 2009
1:12 pm
2307
Very nice. Love the powder coating. Steve Spence Renewable energy and self sufficiency http://www.green-trust.org http://makingthewebwork.blogspot.com/...
Steve Spence
sspence65
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Jun 4, 2009
1:26 pm
2308
... That's a very nice setup you have there, I hope to start on mine soon....
Peter Dragon
caveman482
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Jun 4, 2009
7:14 pm
2309
(Off Topic Response and question) Great work! From the looks of that tower Saw Horse :O you look like you spend a lot of time on the radio also, it looks like...
Adrian James Flynn
ajamesflynn2001
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Jun 4, 2009
9:20 pm
2310
(Off Topic Response and question) Great work! From the looks of that tower Saw Horse :O you look like you spend a lot of time on the radio also, it looks like...
Adrian James Flynn
ajamesflynn2001
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Jun 4, 2009
9:37 pm
2311
Tower is a Rohn HDBX 48 foot on a tilt over base, good for 18sq ft wind load. The wind load needed for the windmill does have me concerned. I have not been...
prog_i_am
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Jun 5, 2009
12:49 pm
2312
Hello All, I am very impressed by the workmanship of Prog_I_am's generator. It has spurred me into maybe attempting to build one for myself. Has anyone figured...
mmk_tsm
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Jun 12, 2009
8:22 pm
2313
Hi Mike -- we have a 12-footer that's about a 2kw machine, and our 17 footer and 20 footers.....peak power ratings are deceptive and not that useful; better...
Dan Fink
danbob88
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Jun 14, 2009
1:58 am
2314
people tend to underestimate just how sturdy a tower is needed and there have been tower failures. (We use 12 inch steel tubing now). Dan, Try Ductile Iron...
ferrand
ferrandst
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Jun 15, 2009
1:06 am
2315
Hello Dan, can you please direct me to the free web pages with construction details at Otherpower. Thanks, Michael....
mmk_tsm
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Jun 15, 2009
9:30 pm
2316
Hello Dan, could you please direct me to where the construction details are located on your website at Otherpower.com. TiA, Mike....
mmk_tsm
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Jun 15, 2009
9:47 pm
2317
Hi Andrew -- We've had no problems ourselves with steel tube towers. We prefer 12 ga tubing over schedule 40 water pipe because of how the strength of steel...
Dan Fink
danbob88
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Jun 15, 2009
11:04 pm
2318
FYI, sorry it it's old news. http://engineeringtv.com/blogs/etv/archive/2009/05/28/axial-flux-technology-for-wind-turbines.aspx or...
Doug Younker
n0lkk
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Jun 16, 2009
2:31 pm
2319
Hello Dan, I posted a query recently about details for larger axial flux generators. In response Dan replied..."and we have free web pages with construction...
mmk_tsm
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Jun 17, 2009
1:40 pm
2320
Did you even look? Click on the link "Wind" and scroll down - there's a whole list of different projects detailed there including the 17 and 20' mills. Have...
Michael Vanecek
mikevanecek
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Jun 17, 2009
10:07 pm
2321
Hi Mike -- sorry for the delay, I'm traveling; just finished the Small Wind Conference, and we are giving a couple workshops at the fair. This page has all our...
Dan Fink
danbob88
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Jun 18, 2009
2:04 pm
2322
And, since smaller wire is needed to carry three phase AC than DC, it's also cheaper to move that power from the generator to the battery. Not to mention more...
Jim Krywalski
jkrywalski2000
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Jun 18, 2009
3:32 pm
2323
Thanks Dan, I finally found them. Not sure why I couldnt see them earlier....but I had looked, honestly. The 17 footer looks like a very nice generator to try...
mmk_tsm
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Jun 18, 2009
11:19 pm
2324
http://www.magnet4sale.com/product.php?productid=16954&cat=354&page=1.here is a address for some epoxy coated magnets. the price seems very reasonable. but...
hiburd28
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Jun 20, 2009
11:38 pm
2325
... Those would rock on AFG...
TheDude
theduderulez
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Jun 21, 2009
12:49 am
2326
Pulling force is related to size. Induced voltage in a wire is # of lines cut per unit time, thus velocity and flux density. The higher the magnet number the...
Kirk McLoren
kirkmcloren
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Jun 21, 2009
5:15 pm
2327
Hugh Piggott used N35 in the examples in his books, and they are a good price. Although http://www.magnet4less.com/ doesn't carry N35 any more, and have the...
romur1
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Jun 22, 2009
3:07 pm
2328
... N-45 are way better and he does suggest them in his newest book as of Jan 09...
TheDude
theduderulez
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Jun 23, 2009
1:45 pm
2329
Hello, are there any guidelines for choosing magnets, size, shape and strength in relation to the output power of the generator. How do Ceramic compare with...
mmk_tsm
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Jul 1, 2009
1:45 am
2330
ceramics will have greatly reduced output. a 500 to 1000 watt turbine should have neodymium's, grade n40+, approximately 2" x 1" x .5" or so. Steve Spence ...
Steve Spence
sspence65
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Jul 1, 2009
1:56 am
2331
Steve, I have 2" x 1" x .25" magnets, lots. Is it possible to use two magnets united to increase the force as a .5" one?...
rolando_elizondo
rolando_eliz...
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Jul 1, 2009
5:09 pm
2332
I do not know. Steve Spence Renewable energy and self sufficiency http://www.green-trust.org http://makingthewebwork.blogspot.com/...
Steve Spence
sspence65
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Jul 1, 2009
5:20 pm
2333
If there is anyone in Memphis area planning or constructing the alternators, I would like to observe the construction and hear about the planning....
gardennut69
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Jul 2, 2009
1:42 pm
2334
Your flux will increase with thickness, so stacking magnets will increase the force. Some incidental losses may occur, they they will be very minor. Intermag...
offlogic
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Jul 8, 2009
12:49 pm
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