cooling systems

Joel Jaeggli joelja at
Fri Apr 11 15:29:11 EDT 2003

On Fri, 11 Apr 2003, jbassett wrote:

> This is precisely the point that I am getting at. It seems indirect to me to 
> cool the ambient atmosphere in a room using air conditioners, then expect the 
> heat to distribute itself so that the temperature is at equilibrium throughout 
> the system. It seems entirely more sensible to have a system such that cold 
> air would be directed more precisely at the cpus, then have the exiting flow 
> directed through some sort of exhaust system which would take it to some place 
> that would act as a heat resovoir. In that way you could use the existing 
> airconditioning infrastructure at a facility by distributing the hot exhaust 
> from a cluster into the building.

You're better off just taking the heat out of the air and exhausting it 
out of the building, which you do with either vapor-phase refridgeration 
or chilled water in general... when you have large datacenters, you don't 
use the rest of the building as a heat resovoir, it's not nearly big enough a 
space unless you happen to work in one of the moffet field blimp hangars 
or something. if you had enough space or a convenient lake you could also 
use a heat-pump.

> You could even use a venturi on an air duct 
> pipe to keep a vacuum going and redistribute the hot air.
> Joseph Bassett
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Joel Jaeggli	      Academic User Services   joelja at    
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