joe a. wrote: >>> The tomshardware-guys (no gals would do this...) have removed the >>> fans, and immersed the innards of the computer in a sealed cabinet >>> filled with cooking oil. So they have a completely silent machine >>> in 40C warm oil. Amazing... > > It certainly is. And, I suppose, this will work, for a while, as long as: > > The "sealed cabinet", has enough expansion capacity for the oil to expand > from heating; > Has enough surface area to effectively radiate the heat that is continuously > generated, > (else the temperature of the oil will continue to rise . . .(sound familiar?)) > > The components can withstand continuous (24x7x365) immersion in a heated > liquid. A solvent, basically. > The oil will eventually compromise the integrity of most, if not all of the > components.
You might be misunderstanding the meaning of the word "solvent"; A solvent is any (generally liquid) substance which can dissolve another substance; the mere fact of the cooling medium being mineral oil doesn't automatically make it a solvent. It depends on what you're applying it to. The oil is non-conductive, so even if it penetrates a chip enclosure, it's not going to cause a short. It's also non-corrosive; and the suitability of the oil depends also on the heat capacity, which is a function of the volume. Whether the insulators and plastics would be affected by a mineral oil is an open question; I don't see vegetable oil causing a problem, though it will start to smell after a while. Oil is a better conductor of heat to plastic than air is, so you need to consider not only the air-exposed surface but all the others as well. > Not the best of ideas, IMHO It's a fine idea, but whether it works well or not comes down to the quality of the execution. Personally, I wouldn't do it for three reasons: - it makes adding/removing expansion cards messy or impractical - a leak in the enclosure would be a catastrophe (a big mess and almost guaranteed failure) - it would be bloody heavy -Stephen- _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users