[Beowulf] Innovative liquid cooling

Prentice Bisbal prentice.bisbal at rutgers.edu
Fri Mar 1 12:44:27 PST 2013


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.
>
>> 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.



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