[41200] in North American Network Operators' Group
Re: What is the limit? (was RE: multi-homing fixes)
daemon@ATHENA.MIT.EDU (David Howe)
Fri Aug 31 04:13:15 2001
Message-ID: <004001c131f4$7fa9cbe0$c71121c2@sharpuk.co.uk>
From: "David Howe" <DaveHowe@gmx.co.uk>
To: "Email List: nanog" <nanog@nanog.org>
Date: Fri, 31 Aug 2001 09:11:07 +0100
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"Vadim Antonov" <avg@exigengroup.com> wrote:
> On Thu, 30 Aug 2001, Roeland Meyer wrote:
> > see "Pelletier Effect" devices. Thermos made a portable ice-box, using
that
> > tech, for a while. It's all solid-state, no moving parts.
> They are interesting, but what they are is merely heat pumps; you also
> need to carry the heat away with the flow of some material (eventualy to
> be pumped outside of the building). [Radiative cooling is not really
> applicable for the required rates of heat transfer; it'd require equipent
> to be hot way past the point of melting :)]
Useful for a hybrid approach though - the big problem with liquid cooling is
that the fluid and/or any condensed air vapour gets to flow inside a case
with (at least theoretically) swappable parts; difficult to arrange that
nothing requires either disconnecting and draining, or risks puncturing a
fluid carrier. By using purely solid-state components (and some sort of
thermal carrier paste) you could arrange for even hot-swappable (not an
intentional pun BTW) components to be able to pump their heat to a thermal
element on the outside of the case, which in turn is threaded with coolant
pipes for a fluid-based system to expel heat to the outside of the building.
