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Author Topic: Painting an Alternator  (Read 6593 times)

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THDLink

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Painting an Alternator
« on: January 19, 2015, 08:39:42 PM »

Any issues with painting a stator / shaft / magnets ? I see the paint melting the stator laquer(poly?) and also ruining any terminals. Also friction in the seat of the shaft(?). Other than that I don't see a problem.. maybe do the interior with (clear) laquer for metals so I can see if there is anything wrong with it later.
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THDLink

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Re: Painting an Alternator
« Reply #1 on: January 21, 2015, 12:25:04 PM »
I did some extensive research and here they are.. the parts primed and half painted.
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hiker

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Re: Painting an Alternator
« Reply #2 on: January 21, 2015, 01:09:58 PM »
whats the specs on that ?
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THDLink

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Re: Painting an Alternator
« Reply #3 on: January 21, 2015, 04:38:50 PM »
12 Volt "1600 watt"
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Mary B

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Re: Painting an Alternator
« Reply #4 on: January 21, 2015, 04:56:21 PM »
1600 watts at 120 miles per hour wind maybe... real world 100 watts...
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THDLink

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Re: Painting an Alternator
« Reply #5 on: January 21, 2015, 10:27:03 PM »
Quote from: Mary B on January 21, 2015, 04:56:21 PM
1600 watts at 120 miles per hour wind maybe... real world 100 watts...

Yes, I was hoping more like 300 but I get the idea.

Paint melted the primer and it came out a mess... did another coat after the photos and it looks half decent.
Check out these videos: I turned the turbine with a drill with the blades on and could only get it up to 10.5 volts, without the blades 19 volts.

The paint worked fine on the primer for the first half then somehow it turned on me!

Pics and Video links in a minute
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THDLink

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Re: Painting an Alternator
« Reply #6 on: January 21, 2015, 10:57:31 PM »
Commander Wind Turbine Test w/Blades: http://youtu.be/O182wIGqUJY

Commander Wind Turbine Test w/o Blades: http://youtu.be/5MQkPoEBlbA
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Mary B

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Re: Painting an Alternator
« Reply #7 on: January 22, 2015, 02:13:41 AM »
Start by dumping the bulk of the blades, 3 is plenty...
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Flux

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Re: Painting an Alternator
« Reply #8 on: January 22, 2015, 10:48:24 AM »
Probably it will cog so badly that it won't start in sensible wind with 3 blades.

Flux
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Frank S

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Re: Painting an Alternator
« Reply #9 on: January 22, 2015, 03:18:01 PM »
Having 11 blades in it would be a nightmare to try and reduce the number of blades so your are stuck with that number unless the hub has other hole patterns in it. the fan style with so many blades might help overcome coging. inn low winds due to the  amount of surface area also in high winds a fan limits its max RPMs Any lift it would otherwise have that would increase the TSR will be overcome by drag. I'll bet in a 45 MPH wind the turbulence due to shear and spillage will make it extremely noisy and may even cause harmonic wobble in the blades.
 If you hear a sound like thrumming  and if you look at the fan from a side profile it will appear to have a bunch of fans or look really thick. this would be due to flex. 
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THDLink

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Re: Painting an Alternator
« Reply #10 on: January 23, 2015, 03:00:58 PM »
people were right calling them expensive lawn ornaments. R&D is over... looks like I'll need more solar panels
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Mary B

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Re: Painting an Alternator
« Reply #11 on: January 23, 2015, 06:08:31 PM »
Carve some good wood blades and it will give you some output if it doesn't cog horribly
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XeonPony

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Re: Painting an Alternator
« Reply #12 on: January 23, 2015, 09:02:13 PM »
That's what we call failure in motion, read up on the wind section for a good while, easy to build a real one that will out perform that by miles, any thing with a car alt be very weary, and only two blades for them, they relie on speed and torque with very low efficiency in mechanical to electrical conversion.

but the blades are salvageable.
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THDLink

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Re: Painting an Alternator
« Reply #13 on: January 23, 2015, 11:38:52 PM »
failure in motion is what I planned on  8)

Carving blades sound like hella task. People do this?

Failure in motion describes it perfectly.. we will wait for wind.. watch it spin.. hook it up... Until then, perfect; (lugs & shrink wrap & diodes) the one panel system and step it up to a four panel (100 watt) system.
 :o
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