Thoughts on freon and liquid cooling ...
- Thread starter Sepzis
- Start date
Yeti
VIP Member
CFCs such as R12 and R22 haven't been used commercially for a while. Their HFC replacements, such as R134a, are most common now. "Freon" is really a trademark of DuPont and their refrigerants, but people often use it as a synonym for "refrigerant" similar to Kleenex and "facial tissue".
What exactly are you planning on doing? What type of system? How cold?Sepzis said:
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tremmor
Well-Known Member
Im guessing its still the same. I was buying 50lb cans of 22 and 12 then. They stopped selling it years ago to me because i was not licensed. I was able to go into a place like Murrays auto parts and buy a 1 pound can. They still might do it and available at a parts supplier. Just guessing though.
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Juggalo23451
New Member
cooling you ram is a waste if you want to use freon might as well look at peltier cooling
Juggalo23451
New Member
if you do that route you will have to ensure your mb is properly insulated from condensation. again no reason to cool the ram if this is going to be a 24/7 rig.
Not sure what you meen by 24/7 rig. I'm looking to overclock to the max. This rig is ment to be a bit overkill.
ScottALot
Active Member
24/7 rig meaning you can turn it off/on as you please like a regular computer. Usually this title is only available to those who air cool, water cool, phase change, or TEC cool. Freon doesn't seem to be viable for 24/7 use.
Gary1
New Member
Apparently OP works with Air conditioning or something???? I don't know where he is getting it, or how he got it. His question was Does he need to protect his motherboard and how?? I am sure he is talking about the kind of Freon that is cold, and I am sure it's not important to know what he has.
Gary1
New Member
just a noob
Well-Known Member
The cryo-z was kind of a flop, it just couldn't hold a decent sized load. The unit was designed back in 2006/2007(I think) for a fairly low heat load. You'd be better off finding a phase change builder to make you a custom unit tuned to your needs.
Yeti
VIP Member
Even if that is the case, that doesn't necessarily mean much.Gary1 said:
And that question has been answered: As with all sub-ambient cooling, condensation must be accounted for. Otherwise, it is doubtful that any other thermal issues would arise.Gary1 said:
As opposed to the non-cold kind? So him having R134a, boiling point at 1 Bar of -26C, is the same as having some R14, boiling point at 1 Bar of -128C? Regardless, I would have more confidence in him knowing what he is doing if he knew what type of refrigerant he had and how he was going to use it (single stage? cascade? what compressor?). So yes, instead of answering his question I am trying to gauge if this is time wasted on everyone's part. To the OP, Sepzis, I apologize if you do have a vapor compression system in mind and have experience with refrigerants, but your statements don't lead me to believe this. Having refrigerant on hand is typically the least of your worries.Gary1 said:
just a noob
Well-Known Member
You've probably been asked this before, but are you an HVAC tech or something Yeti?
Yeti
VIP Member
No, I'm an engineer and I work on things much colder than HVAC systems
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just a noob
Well-Known Member
No, I'm an engineer and I work on things much colder than HVAC systems
*insert joke about an ex wife here*
Anyway, what do you think about this? http://www.xtremesystems.org/forums/showthread.php?215573-5-Stage-Cascade-Made-in-Germany-!/page21
Gary1
New Member
I am only here to get answers and no I am not into HVAC but I know a guy who is awesome with the stuff. However instead of taking this subject to him I am thinking about something like the cryo-z. It might not be so easy either.
I would like to know do you need to do something to protect the MOBO?? If so how?? And as for the Freon I will be using what ever A) is installed in phase change, or B) someone more qualified than me to purchase. Sorry for being short but I am not concerned with Freon until I know what I am doing with the components I do have. Honestly If I go ahead and get someone to make this for me and it crashes my mobo and CPU then I have to start over. Also it would be nice to know if its even a good idea.
I would like to know do you need to do something to protect the MOBO?? If so how?? And as for the Freon I will be using what ever A) is installed in phase change, or B) someone more qualified than me to purchase. Sorry for being short but I am not concerned with Freon until I know what I am doing with the components I do have. Honestly If I go ahead and get someone to make this for me and it crashes my mobo and CPU then I have to start over. Also it would be nice to know if its even a good idea.
Yeti
VIP Member
Yeah, I've followed that site off-and-on for many years. A lot of incredible systems on there including that 5 stage cascade.just a noob said:
Yes, you need to protect against condensation. There are two goals to this:Gary1 said:
1) insulating any cold (or potentially cold, e.g. think of conduction paths) to make surface temperatures higher (ideally above the dew point) and
2) eliminating any air pockets that would contain condensible water vapor (for my work I use high-vac systems which, unfortunately can't be done, at least very easily, with computers)
To accomplish this you can use various closed cell foams (e.g. neoprene) and formable dielectric "putties" (e.g. rubber eraser). The site that just a noob linked is a good place to look for various methods and advice for low temperature computer cooling.
When thinking up a system, I would recommend starting with your goals - what do you want it to do (temperature? potential loading? running 24/7?)? Then you can choose a compressor, refrigerant, etc. that will accomplish your goals.Gary1 said:
Sure, its a good idea if you want to heavily overclock your computer and you have the necessary money, time, and patience (or just lots of money).Gary1 said: