[Beowulf] /. Swedish data center saves $1 million a year using seawater for cooling
hahn at mcmaster.ca
Sun May 19 22:15:47 PDT 2013
> Do they not recycle the heat?
if it's warm enough, sure. for a conventional cluster, with cold
side around 20C, the "hot" air will be 30-35C. that might be
interesting during winter in cool climates. IBM has an interesting
system called Aquasar which addresses this: it uses water directly
in node heatsinks. this dramatically reduces the thermal resistance
of the system, which means the exhaust heat can be much closer
to the die temperature: 60C rather than 30ish.
regards, mark hahn.
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