Crazy Thoughts or working to many hours

[coldspot]

Idea for liquid cooled stator

Built using tiny copper tubing

in the coils and between the coils

(rubber/plastic tubing between coils opional thought)

the liquid cooled stator

 built with the clear coat/varnished cooling

 plumbing into and electricaly seperate from the coils,

[maybe a single wrap at inner most coil area dead center

then the coils wire wrapped around and over it and dual wraps

at center coil area  with another single or dual wrap around

 on the outer layer with this tiny copper tube]

,this liquid would flow up after getting heated towards the top of the stator

 where the little core or coils of tubing would sit getting great forced air cooling

 before heading back to lowest coils for reheating/cooling.

 The liquid could also be pumped with a little 12 VDC

 cooling pump for liquild cooled computers

That might also be able to be driven with a

active furl tail built with a little stepper motor

 running jumbo style sideways in the tail causing drag

 and following the wind while powering the pump,

 this would have the pump running only when

 the winds are high and heat could be an issue.

 My Turbine tail will at least be used for LED lighting on the Tower top.

[smidy]

i have seen very smal coppertubing, maybe 2mm, pretty big for coils, but could maybe be insulated and used like vire in coils, 100% watercooled coils, but i guess its something i miss since nobody have bin try it, maybe eddy curent when winding coils of tubing.

[wooferhound]

Don't you think that the Eddy Currants in the copper tubing would heat the water to much to cool the wire coils. Would'nt the Eddy Currants also create too much drag to work in a wind generator.

[TomW]

Woof;

Exactly what I wondered. Would it actually increase stator heating from Eddy and his currents? Once you get a certain cross section of conductor they probably get pretty high and that current all gets converted to heat.

Just guessing. Thermodynamics and fluid dynamics are 2 subjects I haven't gotten to yet.

Cheers.

TomW

[electrondady1]

http://www.fieldlines.com/story/2005/5/30/12139/8481

http://www.fieldlines.com/story/2006/11/7/212552/075

since 50% of the energy captured by the alt is stator heat it's kind of tempting to

try to capture it .

[finnsawyer]

Well, 2mm is about 1/12 of an inch, which puts one into the 14 or 12 gauge region for wire, I think.  Since some alternators use 14 gauge wire, it should be doable with somewhat greater resistance per phase.  Eddy currents in that case might be less than for the solid wire since they can not cross directly across the tube.  It may be that he has come up with an idea for making alternators that could be done effectively in a manufacturing facility for larger alternators.

[coldspot]

No,

This isn't an origional idea.

Way Back, 20+ ago when going to ISU for Electrical Tech, we toured "American Falls" Hydro plant. Seeing bolth the old and new then stuff. I might recall seeing something.

But my thoughts mostly came from my liquid cooling/Phase change computer cooling days.

(straight from that hobby to this one)

Here is a couple shots of my memory water block cooling tricks.





Tubing I'm talking about is on the farthest back blocks.

The center ones here.





They arn't in this one but the size referance is shown well.

I never used this little ones, the other ones had much better flow and where used instead.

For a stator made like this we might be able to also use rubber or plastic tubing.

I wish that some body would finish the ceramic split stator halfs so I could try that idea we had. {hint, hint,,..  )

Thanks

[coldspot]

&^%*&^%$#@!

OOP's





Some times sleep would be a better plan.

[pepa]

hi Coldspot, i have been tied up on a couple of comercial projects but i have not forgot you. i promised myself i would not let work get in the way but these are long standing clients and have been very good for me over the years. SOON i hope. pepa

[BigBreaker]

I posted this idea a while back and many people brought up the same concerns about eddy current came up.  I think it will work quite well if you use non conductive tubing.  The eddy current issue is utter non-sense.

Water is not as conductive as people think.  Even seawater with all those salt ions is one millionth as conductive as copper.  Look it up... (here for instance: http://en.wikipedia.org/wiki/Electrical_conductivity ) So the copper wire in the coils presents a cross section that is effectively one million times larger than for water.  Sounds like a non-issue, huh?

The trick would be to find some low electrical conductivity tubing with enough thermal conductivity.  The tubing is also at risk for eddy currents, so copper (or any metal) is a bad idea.  I think some plastics could work well enough if the tubing is thin.  It only needs to hold back the resin or other casting material during the pour.  If the stator is not cast, you could just brush some resin over the tubing to bond it with the coils and provide some protection.

In my earlier post I suggested making the channel paths so that they never went "downhill", but always uphill, from the bottom of the stator to the top.  That way steam bubbles can progress quickly through the channels and dump that heat into a radiator or whatever.  It is tricky to route the channels in a way that cools the bottom most and top most coils without going up and down.  The value of letting those bubble rise up to the top of the stator is worth it.  Steam bubbles have a HUGE amount of latent heat.  Getting that steam out turns the channels into little heatpipes that can move thousands of thermal watts.

[coldspot]

BB-

Thanks

(Didn't see anything about liquid cooling in your diary or stories)

No, I won't try to claim anything original, (maybe the memory blocks but thats a different group of people, LOL) I think I remember reading something about it before, but even then I just smiled, because I have had this plan since I found this site. I have so much stuff saved for/from liquid cooling that I had a couple of mini rad's picked out right from the start for using with the stator. (way to small for any real computer cooling), But since then I've read and reread about all the heat issues and seen the cooked stators posted.

 Thats what helped me to  just share the thoughts and not keep saving to have a more shocking or "Bling" effect when I did if ever try it. You people aren't like the ones from other forums I used to hang out in and bling isn't needed or required here.

 Anyway I just wanted the idea to be out, like the idea pepa and I had on ceramic split stators, (one other plan I had, pepa, was plastic fish tank type tubing being built into the ceramic parts, done so by placing it in before the pour and then getting it out before the cooking or if that wouldn't work then just the copper being used as I hoped it would handle the high heat needed to fire them).

 But at the rate I'm going I might never get a dual rotor built, I can't even get any of the turbines I have done up even to test or try any charging with them.

My world has been turned upside down and after two LONG months of working till past dark every day and weekend to fix it as best as we could, (had to move "shed/shop" and everything my girlfriends brother had collected for ten years with the 40' 5th wheel he lived in and his sheds, he got locked up and might be there awhile.)

 We got the last thing moved, my little shed, (8' X 16' @ 7' tall), last Thursday.

To her other brothers place a half mile away with a way better wind turbine area. Was the plan to be done by about next summer anyway, so shed was built to be moved, but his stuff and him not being around wasn't in the plan.

 Well, it got turned over on me again, that night/evening, last Thursday, this other brother of hers and his wife that had been fighting for a while, cops being over at least 6 or more times in the year I was out there working. The "cops", (&^%$#@!#^&**&^%$#@!@#%&&), showed up at his place and being in an unmarked rig and also being plan cloths, thought they had the rights to shoot him, at the end of his 1/4 mile long drive way, thats right, being a quarter mile onto his place and when he was sitting in his truck holding up guns to show he was armed, they opened fire when he was getting out of the truck shooting him thru the door of his truck. He died.

I'm lost, I need to head to his funeral right now.

 I will be moving my stuff again.



 I wanted my ideas to be out. I don't plan or getting shot but I don't think he did either!

:|

 

[electrondady1]

coldspot,

 your telling us that your brother in law has been shot by the police!!

that is totally shocking.

please post again when your world stops spinning

the idea of a liquid cooled stator /heater is very interesting to me

and i would like do bounce some ideas around when your up to it.

[coldspot]

electrond-

"your telling us that your brother in law has been shot by the police!!

that is totally shocking."

 Not quite the way I'm feeling about it.

 Not shot, killed! Thats right, on his own place, just getting out of truck, (maybe, they might have just shot him inside it for all I know), I do know they impounded the truck and the channel 6 news showed the holes on the air Friday I think.

 Right now I'm so freaked and haven't slept hardly at all, as little as I do anyways. I'm full of RAGE and should go vent some tonight!

(I vent when playing the sport of "FoosBall", and I just might break some guys tonight!)

Thanks

[jmk]

 You better be careful. Sorry to hear about your brother-in-law.

[BigBreaker]

Me too.  Cops should announce themselves and give warning before using deadly force, especially on private property.  If they were out of uniform and in an unmarked car, then that is doubly true.  In many parts of the country it is normal for uninvited guests to be greated with a rifle in hand.

Cops react severely to any perceived threat, even when the threat is deserved - IE as apparent trespassers.  Given the run-ins with the law it seems strange that your brother in law didn't smell cop when two 5-0 looking dudes drove up in a crown vic.  Good luck pursuing the matter in the courts.  Cops have a presumption of acting in good faith and your brother in law isn't around to tell his side of the story.  Very sorry.