[Beowulf] oil immersion cooled blades

Mark Hahn hahn at mcmaster.ca
Thu Mar 15 20:47:42 PDT 2012


>> I guess I'm a bit skeptical about the utility of this approach -
>> would be nice if they had some technical literature.  something about
>> thermal resistance.  define how the oil bath dumps the heat (water
>> hookups in the back?)  comparison to modern heatpipe-based solutions, etc.
>
> No need for water hookups. You can circulate the oil through an oil to
> air heat exchanger. That's what those green cooing guys at the SC

is that really better than going to air directly?
I guess I'd like to see the the numbers - to my way of thinking,
it's almost all about the thermal resistance.  transferring heat to oil, 
then to air, means two stages of resistance.  using oil would permit
a bigger air interface, though I suppose.


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