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2 registered
(Hutch, M_K)
and 22 anonymous users online.
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#170086 - 10/25/07 11:28 PM
Oil-cooled computer
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Trumpy
Cat Servant and
Moderator
Registered: 07/05/02
Posts: 7375
Loc: South Island, New Zealand
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Hehe,
Happened to stumble upon this site while surfing last night:
Oil Cooling A Computer
Seems strange that a computer could survive being immersed in any sort of liquid.
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#170096 - 10/26/07 11:12 AM
Re: Oil-cooled computer
[Re: ghost307]
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NJwirenut
Member
Registered: 09/15/01
Posts: 749
Loc: Bergen County, NJ
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Exactly. There are millions of oil-filled transformers in service, with an excellent record. And most ham radio operators have used a "cantenna", which is a big 50 ohm resistor in a paint bucket full of oil, used as a dummy antenna.
I wouldn't have used vegetable oil for this application, though, because it will quickly go rancid exposed to air like that. Straight mineral oil would be better (though the druggist might give you a funny look when you buy a couple gallons of the stuff!).
I would be interested in the long-term reliability of a setup like this. Most plug-in connectors are NOT designed for oil immersion, so there might be intermittent contact problems in a few months/years. The cooling oil might tend to leach the plasticizers out of plastic parts, perhaps causing the plastic to disintegrate or become brittle, or making the oil itself conductive.
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#170332 - 10/31/07 08:34 PM
Re: Oil-cooled computer
[Re: gfretwell]
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Alan Belson
Member
Registered: 03/23/05
Posts: 1367
Loc: Mayenne N. France
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Heat-pipes are used in some laptops for cooling.
These will shift heat at incredible rates away from heat sensitive components - 500 times the conduction rates of a pure copper bar of the same cross section area are possible, with no moving parts except the usual fan on the cold end. They can be built to even outperform the sun in terms of kw/square centimeter.
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#179326 - 07/07/08 01:00 PM
Re: Oil-cooled computer
[Re: gfretwell]
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SteveFehr
Member
Registered: 03/19/05
Posts: 926
Loc: Chesapeake, VA
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I water-cooled my old 1.3GHz Athlon. Had a fish-tank pump in a tupperware running water and antifreezer through a water-block on the CPU up to a heater core off an old toyota that was mounted in the top of the case. Even rigged up a relay into a 120V receptacle so the pump would kick on whenever the PC was on. Ran great for years until the tubing started to get brittle and lose its elasticity; every time I jostled the tubing to much with my hard drives or add another stick of RAM, a minute amount of coolant would seep out and drip into my graphics card. There was never a trace, and never a drop any time I looked. Destroyed 3 cards before I discovered what was going on.
The temperatures I got weren't even all that great. But I had a lot of fun tinkering with it, which is was the real reason I did it in the first place.
After the fiasco with the leaks, I switched to passive evaporative phase change (heat pipe) when I build my 3.2GHz P4 box.
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Moderator: Scott35, pauluk, Bjarney, Trumpy, Ryan_J, Roger, resqcapt19, renosteinke, LK, iwire, electure, dougwells, C-H
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