Mineral cooling

Re: Mineral cooling

Postby LamsonNguyen » Thu Dec 19, 2013 9:51 pm

There are plenty of mineral cooling threads at places like overclock.net or tomshardware out there and here is one of the crazier ones: http://www.tomshardware.com/forum/274081-29-cooled-computer-water-bath
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Re: Mineral cooling

Postby Janos » Fri Dec 20, 2013 7:28 am

Gravis wrote:it it better to write and be understood than it is to write.

eh?

On a more serious note, I am also interested in mineral cooling. More specifically, surrounding the board by fluid to help withstand pressurised and harmful environments. We currently use 1 atmosphere sealed boxes but they are a pain to use and certify. If we could keep the board at ambient pressure we can do away with an awful lot of engineering challenges.

The major benefit in seeking to use Parallella (and not other embedded systems) is the raw performance, power requirements and the the cost per unit.
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Re: Mineral cooling

Postby fdeutschmann » Fri Dec 20, 2013 3:43 pm

Janos wrote:On a more serious note, I am also interested in mineral cooling. More specifically, surrounding the board by fluid to help withstand pressurised and harmful environments. We currently use 1 atmosphere sealed boxes but they are a pain to use and certify. If we could keep the board at ambient pressure we can do away with an awful lot of engineering challenges.


Now that's really interesting. I always wondered why the people building submersible ROVs used pressure vessels rather than liquid-immersed electronics; I assume it has to do with the IC packaging not being pressure-proof but I honestly have no idea. Would be interesting to know how much pressure IC packages can functionally sustain - looking forward to hearing about your progress!

-frank
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Re: Mineral cooling

Postby Damaraland » Fri Dec 20, 2013 4:19 pm

Janos wrote:More specifically, surrounding the board by fluid to help withstand pressurised and harmful environments. We currently use 1 atmosphere sealed boxes but they are a pain to use and certify. If we could keep the board at ambient pressure we can do away with an awful lot of engineering challenges.

For this purpose I would think in a sealed box with silicone sealing and oil in it. This box can be glass or aluminium. 5W would be very little for a heat sink this size (even for glass). There's a silicon used for huge tropical sea water acuaquiums that is very strong. Of course it would take some engineering to put this together, but from my short knowledge I think this would work in harmful environments.
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Re: Mineral cooling

Postby cogijl » Sat May 09, 2015 5:25 pm

I've wanted to do this for a while so first one too it should post pictures and a how-to.
I spoke with a friend of mine in Oxford who is an engineer and he said that generally there isn't much to worry about if one uses the same mineral oil that other computers use. Acidity is a question for how long it might go without having some corrosion/deterioration but that would be so far off that for an "experiment" of sorts-it shouldn't be an issue. We were going to do this in a new fish-tank since it can hold it. The question really is, do you want to try it for an experiment and just see if it can work as proof-of-concept, or does it have to look pretty too?
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Re: Mineral cooling

Postby shikha » Fri Mar 18, 2016 10:31 am

The neat factor is way up there, but I wouldn't want to mess with it. Just think of the mess you'll have to deal with anytime you want to work on your system. Not to mention voiding warranties on a high end system like that could be money down the drain if something goes wrong.
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