nanog mailing list archives
Re: What is the limit? (was RE: multi-homing fixes)
From: Joel Jaeggli <joelja () darkwing uoregon edu>
Date: Thu, 30 Aug 2001 10:00:20 -0700 (PDT)
On Thu, 30 Aug 2001, Larry Sheldon wrote:
I have proposed to various router vendors the possibility of giving them a chilled water feed instead of lots of cool air. At the moment they seem to not need it, but I would not be surprized to find something like this needed at some point.Err. Water and electricvity make a dangerous mix.That sounds a bit FUDish--lots of electricity is generated using water (most of it is, actually, given that steam is part of the cycle even in most nukes).
yeah, although in steam or hydro turbines or expansion engines the generator is connected via a drive-staft not immersed... water isn't as decent an insulator as an air gap which has to be taken into account when generating a few hundred thousand volts. This is completely removed from the issue of immersing your computer in it. any cooling system in a router or computer is going to be a balance between complexity, thermal efficiency, and cost. we've hardly exhausted to possibilities of air cooling at this point, that will occur when the energy density of the individual componts is to high to be cooled by airflow and reasonable sized heatsinks, not when the box collectivly draws more power...
And we have used water-cooled CPU's for a lot of years. (And as a point of interest, distilled water at neutral ph is a reasonably good insulator, if I recall correctly.)
-- -------------------------------------------------------------------------- Joel Jaeggli joelja () darkwing uoregon edu Academic User Services consult () gladstone uoregon edu PGP Key Fingerprint: 1DE9 8FCA 51FB 4195 B42A 9C32 A30D 121E -------------------------------------------------------------------------- It is clear that the arm of criticism cannot replace the criticism of arms. Karl Marx -- Introduction to the critique of Hegel's Philosophy of the right, 1843.
Current thread:
- Re: What is the limit? (was RE: multi-homing fixes), (continued)
- Re: What is the limit? (was RE: multi-homing fixes) Vadim Antonov (Aug 29)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 29)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 29)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 29)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 29)
- Re: What is the limit? (was RE: multi-homing fixes) Sam Thomas (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Larry Sheldon (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) mike harrison (Aug 30)
- Message not available
- Re: What is the limit? (was RE: multi-homing fixes) Joe Loiacono (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Christian Nielsen (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Joel Jaeggli (Aug 30)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 30)
- RE: What is the limit? (was RE: multi-homing fixes) M. David Leonard (Aug 30)
- RE: What is the limit? (was RE: multi-homing fixes) Vadim Antonov (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) David Howe (Aug 31)
- Re: What is the limit? (was RE: multi-homing fixes) Vadim Antonov (Aug 30)
- RE: What is the limit? (was RE: multi-homing fixes) Roeland Meyer (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Larry Sheldon (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Vadim Antonov (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Jim Popovitch (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Valdis . Kletnieks (Aug 30)
- Re: What is the limit? (was RE: multi-homing fixes) Vadim Antonov (Aug 30)