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smithbr67

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Joined: 16/01/2010
Location: United States
Posts: 5

Posted: 05:41am 16 Jan 2010

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Hi, new to the forum. I have already made one windmill which wasn't all I had hoped for. I know I was impatient, made mistakes and took cheap options instead of quality; lessons learned. My next project will be more robust, but before I made more expensive mistakes I need some info.

1. For radial flux, two disks with neo mags and stator sandwiched in between, can those disks be wood? Must they be steel since magnetic lines of flux are generated by the N-S magnet attraction?

2. If the must be steel, can they be 'laminated', ie. four 1/8 inch steel disks, perhaps insulated (or not) from each other, bound to make one 1/2 inch thick disk?

3. If my winding are off and I intend to make 12v alternator but it makes 20v for instance, can I still use it to charge my 12v batteries? Voltage regulator?

4. If I make 24v alternator (or 24-28) can I still charge 12v batteries by connecting them in series)

Thanks for any info, I am somewhat obsessed with generating power, especially since my previous 'brake drum with laminated strips' worked, but not as I had hoped. I am determined to make a good 1KW wind turbine.

Thanks all

BobbieEdited by smithbr67 2010-01-17

B. Smith
Iowa, USA

KarlJ

Guru

Joined: 19/05/2008
Location: Australia
Posts: 1178

Posted: 07:04am 16 Jan 2010

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1. you mean axial flux radial flux would be magnet around the periphery
must be steel

2. yes but Why.

3. Yes and 20V would be a good spot to aim for i'd imagine anyway

4. Yes but not the other way around, I'd be wiring for 24 or even 48V

Perhaps the F&P is a better starting point to get something in the way of a windmill working, much simpler and allows you to experiment with different wiring combos the F&P offers.

2 F&P's will do the KW you are after.

Go for the Blade extrusions in PVC or Aluminium, I have a 2.5m set with one of trevs hubs for sale if you like.
pm me if interested

Luck favours the well prepared

smithbr67

Newbie

Joined: 16/01/2010
Location: United States
Posts: 5

Posted: 07:32am 16 Jan 2010

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Thanks for the info. What is the F&P?

B. Smith
Iowa, USA

KarlJ

Guru

Joined: 19/05/2008
Location: Australia
Posts: 1178

Posted: 08:23am 16 Jan 2010

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plenty of stuff on this site have a look

Luck favours the well prepared

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