QUOTE (nprev @ Sep 23 2009, 11:45 AM)
. . . you can dissipate heat over the entire surface area of a container/structure instead of building an overly elaborate radiator system that has to work through structural penetrations.
I'm starting to worry that we may be wandering too far off-topic for UMSF (if not totally violating the rules against blue-sky engineering), but this is an interesting idea. So are you suggesting that for, say, metallurgy on the moon, eliminating waste heat simply through radiation may be too slow, and building a radiator with big cooling fins might be too expensive and/or cumbersome. So, given cheap, local argon, you might fill a large bubble with argon, do the work inside the bubble, and let the heat radiate out through the (much larger) surface. Is that the general idea?
I know that some metallurgy on Earth is done under an argon blanket (as Mike described using) to control the amount of oxygen reaching the metals, so I suppose there might be other advantages.
--Greg