Could a bank of ultracapacitors stand in for batteries to provide some smoothing, allowing an all-off-the-shelf-components system? (Without the downsides of...
3481
Steve Spence
sspence65
May 1, 2012 1:38 pm
The capacitors would cost more than the batteries. -- Steve Spence KK4HFJ http://www.green-trust.org http://www.essnmag.com...
3482
Michael
mike_burgess
May 3, 2012 12:44 pm
The ultracapacitors, if you caculate their life cycles, only last a couple years. http://www.cde.com/catalog/inverter/ If you over spec the voltage, (use a...
3483
Steve Spence
sspence65
May 9, 2012 10:20 pm
ok, so volts, amps, hours, watts, amp hours and watt hours are all now being tracked, and displayed both on LCD display, as well as output on a serial line for...
3484
Henry Davis
hdavis30318
May 9, 2012 10:43 pm
Neato! Henry...
3486
Jim Zak
jzlz0706
Jun 16, 2012 6:11 pm
I'm building a 3" diameter rotor using 5/8" dia. round magnets, how do I determine the thickness of the steel discs required? I was considering 1/4", but I'd...
3488
Henry Davis
hdavis30318
Jun 17, 2012 11:07 am
Cogging isn't a problem? Henry...
3489
Jim Zak
jzlz0706
Jun 17, 2012 11:15 am
Thank you very much for your assistance Lee. I was thinking about machining a 5/8" dia. hole through the plate and mounting the magnets within (through) the...
3490
kk4hfj
Jun 17, 2012 11:15 am
Not with an air core axial flux....
3492
tomloeber@...
tom_loeber
Jun 17, 2012 7:45 pm
I appreciate the in depth reporting of trials with different diameters and dimensions of discs, magnet placement and observed results. I should be able to...
3494
steve k
lotsems
Jun 20, 2012 2:36 pm
I have been dismantling hard drives for about ten years and now I have a large quantity of Nd/Fe/B magnets stored in my workshop. I would measure their total...
3495
jzlz0706@...
jzlz0706
Jun 20, 2012 2:38 pm
Lee, does the shape of the coils matter? Instead of the common oval shape I'm considering a funnel shape because of design I'm going to try... Sent via...
3496
solar@...
kk4hfj
Jun 20, 2012 2:40 pm
Coil shape is determined by magnet shape. Rectangular magnets end up with oval elongated coils. Steve Spence, KK4HFJ http://arduinotronics.blogspot.com ...
3498
Jim Zak
jzlz0706
Jun 20, 2012 7:40 pm
So if I use round magnets? From: "solar@..." <solar@...> To: axialflux@yahoogroups.com Sent: Wednesday, June 20, 2012 10:40 AM Subject: Re: Re:...
3499
Neil Dennis
wombat_eagle
Jun 20, 2012 7:42 pm
Why not make a simple balance scale with aluminum "buckets", use lead shot for the balance weight, then weigh that with a standard scale ?? Depending on the...
3500
solar@...
kk4hfj
Jun 20, 2012 7:43 pm
The coils are fairly round. The magnet has to pass by one side of the coil, then the other. The poles are on the face of the magnet. Steve Spence, KK4HFJ ...
3501
Wes Jones
wesjones21
Jun 20, 2012 9:16 pm
Or maybe a digital scale with a tare feature could be used. Then use something tall to elevate the magnet mass above the scale in case it might affect the...
3502
Jim Zak
jzlz0706
Jun 25, 2012 11:59 am
Guys,I've been looking at some alternatives - has anyone looked into Fisher & Paykel appliance motors? These things make some juice! I'm thinking about getting...
3503
kk4hfj
Jun 25, 2012 12:12 pm
This group is dedicated to the discussion of the hugh piggott style DIY axial flux alternator....
3504
Sergio Cohen Arazi
sergio_cohen
Jul 5, 2012 4:29 pm
Does anyone knows were can I buy one of this here in Brazil? Thanks! Sergio...
3505
Jesse
jtownsend200...
Aug 4, 2012 2:20 pm
Howdy Y'all! I've been a member on here for while now and would like to build a wind turbine/solar panel setup for my house. I live in the DFW area and we...
3506
kk4hfj
Aug 4, 2012 2:38 pm
how many daily amp hours do you need? what is the average wind speed for your area, and how many hours per day do you get at that speed? ... -- Steve, KK4HFJ ...
3507
Doug
dougselsam
Aug 5, 2012 1:44 pm
I can address the wind part: If you live in a good wind resource, you can power a home with a 10 kW turbine. Smaller than that and you can make a dent in...
3508
jtownsend2004@...
jtownsend200...
Aug 5, 2012 1:56 pm
We average 1557kwh a month, so if my calculations are correct, 4.325 daily amp hours using 12V batteries. Monthly wind average speed is 11.6 mph. There are...
3509
kk4hfj
Aug 5, 2012 2:14 pm
1557 kWh monthly is 52 kWh daily 52 kWh / 12v = 4333 ah daily With 11mph avg winds, I might not bother with wind at all. You would need a wind turbine with 40'...
3510
jtownsend2004@...
jtownsend200...
Aug 5, 2012 4:45 pm
We average about 232 sunny or partly sunny days here. Â ~jesse ________________________________ From: KK4HFJ <solar@...> To: axialflux@yahoogroups.com...
3511
John P
dbsleder
Aug 5, 2012 4:46 pm
Jesse, that is a whopping lot of electricity! The first thing needed is to eliminate a lot of useage. It would be very hard to be able to produce that much...
3512
kk4hfj
Aug 5, 2012 4:48 pm
My suggestion is that you need to reduce consumption before designing a wind / solar set up, as your consumption is very high, and your natural resources are...
3513
Jim Morris
james-morris...
Aug 5, 2012 9:05 pm
I would suggest you take a look at absorbing solar energy with water heating panels and store the heated water in an insulated tank. Then you can generate...
3514
kk4hfj
Aug 5, 2012 9:23 pm
Remember folks, this is an diy alternator group. ... -- Steve, KK4HFJ http://www.green-trust.org http://www.essnmag.com http://arduinotronics.blogspot.com...
