Beyond water cooling. (Was Re: Peltier devices for cooling)

[Harry Bissell]

Yo Batzman...

The cryo coolers are designed to go to much lower temps where nornal "piston"
compressors dare not go... so they use turbomolecular pumps... which run at
basically supersonic speeds. They are the ultimate in "Fan Cooling"

The frost free units actually warm their coils up, and blow dry air (from the
outside... whcih is cooled there to dehumidify it...) and the dry air removes the
moisture as the frost melts...

Not worth it. You can cut holes and seal the wires in place with RTV... or...

SILLY PUTTY (just don't let my band near the stuff....)

H^)

Batz Goodfortune wrote:

> Y-ellow Y'all.
>         I know I'm prolonging this perhaps beyond it's use-by date but now I'm
> really curious.
>
> At 11:06 AM 02/10/00 +0100, Hallgeir Helland wrote:
> >harrybissell at prodigy.net wrote:
> >>
> >> Hey Batz...
> >>
> >> 2) The normal source of moisture/frost is air enterning when the
> >> door is open (don't open the door) ....
> >
> >... and don't cut holes in it, either. Unless you're able to make
> >them air tight, moisture will enter. Methinks.
>
> How 'n' hell do Frost-free/no-frost and auto-defrost fridges work? I don't
> actually have one so I don't know but they have these little vent things
> all over the place. Could some scheme like this be adapted?
>
> I was thinking last night, perhaps if you were real careful, you could
> actually remove the pump and heat exchangers from a fridge and then build
> them into something like a printer hood? After all, this is all a cryo-CPU
> cooler is. A very small fridge. My guess is though that the CPU cryos
> probably make a high pitched wining sound due to their small size.
>
> But if you wanted to go all the way you could take a leaf out of IBM's book
> and do what they did on the 3090s. Where they had liquid nitrogen pumped
> through these little spring loaded booties on top of every chip.
>
> Doing the Seamore Cray thing and dumping your entire machine in something
> Like Flurinert (as Eric Suggested) would be the way to go. But it's so damn
> expensive. You wouldn't want to spill a drop. And you probably wouldn't
> want to immerse your HDs in it either.
>
> If hard drives still work like they use to, the chambers aren't
> hermetically sealed. There is an air filter on them that filters out
> particles larger than about a micron. The heads themselves float on a
> cushion of air, a couple of microns above the disk surface. Imagine trying
> to run that in a bath of flurinert. So you're back to square one.
>
> But probably the best way to get round the problem is to simply build
> yourself some kind  of vocal booth. A room isolated from your control
> room/studio where you can plonk people who want to sing or play acoustic
> instruments. I just wish I had room to do that. The fan noise I can
> actually live with personally.
>
> Be absolutely Icebox.
>
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