On Freitag 01 März 2013 Prentice Bisbal wrote: > On 03/01/2013 02:00 PM, Mark Hahn wrote: > >> For future reference, I just looked up these thermal conductivities: > >> > >> Air : 0.024 W/m-k (at 298K) > >> Water: 0.58 W/m-k (at 300K) > >> Mineral oil: 0.162 W/m-k > >> 3M Novec 7000: 0.075 W/m-k > > > > H2 is 0.168 at 25C. *that* is what we should all be cooling our > > clusters with! > > Think of how much we'd save by not needing to reinforce the raised > floors. Heck, we wouldn't even need raised floors, just some tie-downs. > > Mercury is even better. It's a nice round "8" and it's really easy to > clean up when it spills, too.
As somebody who is a Chemist and have worked with Mercury I can tell you the cleaning up of spilled Mercury is not that easy. Zinc-dust or Sulfur, that is the question, but the mess is the same. Besides, it is heavy and toxic. So not a good choise. :D Jörg > > >> Sources: > >> http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html > > > > yeah - weird collection. salmon and silver; raw potato and portland > > cement. > > > >> I went with the 3M Novec because it looked like "7000" was written on > > > > good spotting! > > > > thanks, mark. > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf -- ************************************************************* Jörg Saßmannshausen University College London Department of Chemistry Gordon Street London WC1H 0AJ email: j.sassmannshau...@ucl.ac.uk web: http://sassy.formativ.net Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
