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Using a oil in your PC cooling system
bork:
The whole reason I started this was to stop someone of thinking of using oil in the first place. Someone started talking about oil and knowing human nature, someone would try it.
Oil would be a poor coolant of choice for several reasons. One of the major reason is that it has a low specific heat value or a poor ability to carry heat. Water can absorb/release twice as much energy than a equal mass of oil for the same temperature change. For a closed loop system, you would need a larger pump to move the fluid faster to remove the same heat compared to water. Oil can also "attack" some of the plastics used to construct a system, not very nice for system longevity.
The only reason there have been oil cooled systems is were people are trying to go to sub-zero temperatures and were trying to avoid condensation problems - trying to surround the components with oil to keep air with moisture out. Good for a short duration where your trying to get the ultimate overclock award.
BTW - there is one common fluid that is better at moving heat than water and it is one that you do not want to touch, Ammonia.
zat0x91:
--- Quote from: bork on March 12, 2011, 08:05:32 PM ---The only reason there have been oil cooled systems is were people are trying to go to sub-zero temperatures and were trying to avoid condensation problems - trying to surround the components with oil to keep air with moisture out. Good for a short duration where your trying to get the ultimate overclock award.
--- End quote ---
People either insulate it with pads, some sort of paste, and other stuff I can't remember off the top of my head. A more popular method is to just cover up the entire area that's being under extreme cooling with stretchy (whatever ones that allow you to mold them) erasers to prevent the air coming in contact with the motherboard.
kitamesume:
true, well, the people that wents to oil cooling are mostly paranoid about leaks, on the other hand, air cooling(decent true air cooling) are pretty decent tho abit bulky.
theres the option of pouring epoxy over the sensitive parts to isolate them from the outside, it doesnt ruin it and in fact it helps it dissipate heat abit more because of bigger surface area. tho the option of repairing it if it were to die of old age would be voided as its under solid epoxy. theres some epoxy that are made for electronics, they arent electrically conductive and they're quite heat conductive, mostly you see them on IC with a color of black on olden electronic toys and calculators.
epoxy
edit: actually, if you ever cover the whole motherboard in epoxy, you may even submerge your whole motherboard into water xD.
rostheferret:
--- Quote from: bork on March 12, 2011, 08:05:32 PM ---BTW - there is one common fluid that is better at moving heat than water and it is one that you do not want to touch, Ammonia.
--- End quote ---
Ammonia stinks like shit (well, piss to be more precise) but its not lethal at all. You'll just have hands that stink for a few days.
kitamesume:
alcohol is a great coolant as well, and quite easy to get, just buy a 95% liquior and you have your self a drinkable coolant, and it evaporates too when it leaks.
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