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[youtube] Submerged computer in 3M non-conductive chemical

post #1 of 133
2/7/11 at 9:40pm
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Quote:
This liquid submersion cooling system is NOT using mineral oil, or any type of oil cooling. This experiment was done using a chemical made by 3M called Novec™ 7000. It has a low boiling point, and leaves no residue or any trace whatsoever behind on the motherboard. The board was equipped with an i3 processor, running at 100% load.
The chemical's boiling point is 34C, it's ozone safe and non-toxic, and it cools the entire system.



http://www.youtube.com/watch?feature...v=Z_X_hgtlJpA#

Note to the news nazis: I couldn't find an official article on this, but the company's link is here: http://www.corvalent.com/

Edit: Found the article! http://www.corvalent.com/martinscorner/index.shtml

Edited by slngsht - 2/7/11 at 9:50pm
back to air cooling
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back to air cooling
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post #2 of 133
2/7/11 at 9:45pm
Quote:
Originally Posted by slngsht View Post
The chemical's boiling point is 34C, it's ozone safe and non-toxic, and it cools the entire system.



http://www.youtube.com/watch?feature...v=Z_X_hgtlJpA#

Note to the news nazis: I couldn't find an official article on this, but the company's link is here: http://www.corvalent.com/
Wouldn't it be better to have a high boiling point?
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post #3 of 133
2/7/11 at 9:46pm
I've seen this with 3M Fluorinert before.... but this stuff is expensive. A few hundred per gallon.

http://multimedia.3m.com/mws/mediawe..._heattrans.pdf


Quote:
Originally Posted by cubanresourceful View Post
Wouldn't it be better to have a high boiling point?
You might need a pump then. The boiling helps to expel heat from the system.
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post #4 of 133
2/7/11 at 9:49pm
Quote:
Originally Posted by cubanresourceful View Post
Wouldn't it be better to have a high boiling point?
I think it needs the low boiling point so it can bubble up and recirculate the liquid.
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post #5 of 133
2/7/11 at 9:52pm
Thats pretty interesting. But why doesn't the fluid heat up? I'm not understanding how it is cooling so well. With a bare processor isn't the efficiency pretty bad?
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post #6 of 133
2/7/11 at 9:55pm
Thats incredible.
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post #7 of 133
2/7/11 at 9:57pm
Quote:
Originally Posted by cubanresourceful View Post
Wouldn't it be better to have a high boiling point?
That's what I thought too, but the video explains it. At 34c, the liquid vaporises, rises and then condenses which allows it to fall back as cooler liquid. If it had a higher boiling point, the droplets of condensation would be hotter (closer to that higher boiling point) thus making it less effective.
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post #8 of 133
2/7/11 at 9:58pm
Looks cool. Too bad its major $$$ for a gallon.
Edited by Alfwich - 2/7/11 at 10:01pm
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post #9 of 133
2/7/11 at 10:05pm
Quote:
Originally Posted by strap624 View Post
Thats pretty interesting. But why doesn't the fluid heat up? I'm not understanding how it is cooling so well. With a bare processor isn't the efficiency pretty bad?
The fluid is probably heating up, not all of it is at boiling temperatures. Well, this maybe a proof of concept, its certainly not a good way to cool (our) stuff. i3s run pretty darn cool, I'd like to see a stock i7 920+ in this and see how it performs. That might answer your "how is this cooling so well question" also this liquid is custom made for cooling(check spec sheets), so it has to have good cooling capability.

I wonder if there are supercomputers that use this as a coolant...
Edited by B7ADE - 2/7/11 at 10:08pm
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post #10 of 133
2/7/11 at 10:28pm
Wow, very nice. And the phase changes (boiling and condensing) dump a lot of heat. This is major league nice cooling. No need for heatsinks, and everything that makes enough heat to hit 34c gets some real cooling.
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