What about CO2?
Hey all, new poster here. I really like Pro-Cooling.com, folks around here seem to know the technical side of our hobby along with the enthusiasm, which is rare.
Anyways, I was wondering....what about using carbon dioxide as a phase change coolant? Its chemically inert, non-flammable, a crappy electrical conductor, and its boiling temp is -87C; that's chilly in computer-chip cooling world, but about a hundred degrees C "warmer" than LN2. Anyone ever try it?
From what I understand it will solidify into "snowflakes" after the compression-heat exchanger cycle whilst in the capilliary stage, but if the system could be designed in such a way that high velocity ~-80C "snow" was raining down on the CPU...that would be pretty frickin awesome. It would be almost three times lower in temp than a Vapochill! Just an idea...
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