Peltier devices for cooling

[Martin Czech]

:::IMHO, acoustic isolation makes the most sense...

I guess in every studio is a noisy machine, or a couple of them.
I've seen low noise cabinets, i.e. glas or wood enclosures,
two fans enforce air circulation in and out, but the air entrance
is damped by an acoustical labyrinth...
Apply the same methods that are applied for good loudspeaker
cabinets:

massive walls, sealed, and labyrinth like in those transmission
line designs, but of course everything can be a bit cheaper,
because you want to have NO sound at all.

btw. water cooling sounds expensive, I know there are special
19 " water cooler things, 2 units high. 

{
When I made my pre thesis work (I don't know, is thesis the right word,
I'm no Dr., Dr. Ing. or so, just an egineer) at the chair for
communication and tv, there was a big ECL logic/ DRAM machine,
I think 1GB of DRAM, hey this was back in 89 or so, this was EXPENSIVE
and large, two 19" cabinets, 2m high, full of ICs. The logic was wire
wrapped. This apparatus could display video sequences in all possible
formats, with 8 bit resolution per color channel. And I was the 
miserable guy who had to program the realtime control software
for that... another sad story. Anyway, at the bottom of the cabinets
there were two water cooled heat exchangers with strong fans.
One day I forgot to turn on the water supply before starting,
after an hour or so the damned thing got so hot that the DRAM
memory could have failed, so the heat supervision alarmed...
}

perhaps there is the possibility to get waste parts of air condition,
or other tubes, thin copper tubes, I think it would be not so difficult
to solder a copper heat exchanger grid. In this case the cabinet could really be
sealed, this should be really low noise then...
Anyway, the little story above tells, that some kind of heat alarm
for delicate devices like hard disks, processors etc. is really 
rcommended in such a case.


m.c.


m.c.