Coldest hot-side temp?

[libertate]

I've got an idea that I'm more than 50% sure will work....
I'm going to water cool, and my anticipated coolant temps
are -160C ..... Just curious, once I get this implemented,
will an average 226watt TEC be able to handle such
cold temps on the hot side?

[OPPAINTER]

libertate,

Good question, seeing your the only one in the world that has, or will attempt it, your going to have to tell us.

You should just use the -160 straight for the CPU, forget the pelt.

OPP

[Chong345]

I agree with OPP on this one. That pelt is gonna be insulating rather than actually helping out the CPU IMO. Of course I have never tried anything like that but we are talking close to LN2 temps! :D

Chong

[will_perdikakis]

I've got an idea that I'm more than 50% sure will work....
I'm going to water cool, and my anticipated coolant temps
are -160C ..... Just curious, once I get this implemented,
will an average 226watt TEC be able to handle such
cold temps on the hot side?Few questions for you:

What method of cooling will you use to get the temps <160C? obviously the actual active cooler will have to be much less than the coolant itself, especially with that great of a delta T with ambience.

What medium (coolant) will handle such low temps without solidifying?

Also, you will need at least 1" of insulation to prevent condensation on the insulation itself, one of 2 layers of neoprene will not cut it.

[libertate]

Also, you will need at least 1" of insulation to prevent condensation on the insulation itself, one of 2 layers of neoprene will not cut it.

Yeah, unfortunately I'm anticipating that factor... I'm going to
go nuts on the insulation...

As for the cooling element, I'm going to use several
dehumidifiers with the evaporators all in one high capacity
tank.... crude, I know, but I still have a hunch it'll work....
not even considering how much power it's going to eat up....

I'll probably use at least 4 vapor systems with the
evaporators in a large 50+ gallon tank, I'm still pondering
on a coolant..... I want something with extremely low viscousity,
and extremely low temperature limits......

I'm going to put all that junk in my basement, directly below
my computer room, then I'm going to run the tubing up into my
computer case through a drilled hole in the floor.......

I know all this sounds both elaborate and crude....
but I think eventually it will be feasible....

[will_perdikakis]

I'm going to use several
dehumidifiers with the evaporators all in one high capacity
tank.... These humidifiers probably have low powered r143a compressors. There is no way they will get that cold.

Having a large volume of heat transfer medium is not beneficial for every day usage. More liquid means that is have more capacity for heat, but it does not mean better cooling. Surface area is what transfers heat in/out of the liquid.

Also, having that large body of liquid will take quite a while to cool to -160C.

In order to get to those temps you will need a rather large r404a compressor in a pressurized tank.
I'm going to put all that junk in my basement, directly below
my computer room, then I'm going to run the tubing up into my
computer case through a drilled hole in the floor.......
What pump do you plan on using that will...

-Be able to raise the water 10ft+ vertical?

-Will be able to operate in such low temp conditions?

There is a lot to think about here. The idea is do-able, it just needs to be excuted properly.

What de-humidifiers are you planning to use?

[libertate]

I've been thinking about using the kenmore 65 pint model...
i don't think it uses r134a, but I'm not sure......

Yeah, I've been thinking about which pump to use as well....

needless to say, this is going to be a huge project....