1,1-Difluroethane as a coolent

cwb27 · Apr 17, 2003

For those who don't know this is the fluid used in 'canned air'.

I'm curious if anyone has attempted filling a system with this fluid. Or if this concept will even work.

nealric · Apr 18, 2003

well it might- work in kinda short term use, but i dont know how well it compresses and such or even if you can use a normal refrigerent compressor with it.

Frankly, Im sure it would be used as a common refrigerant if it were practical. Cool idea tho.

[EG]~NaTz~ · Apr 18, 2003

you would have to look into its thermal properties, its viscosity, its heat capacity, evaporation rate, and so on. there is a lot of work in looking into new liquids, this however can pay off sometimes if you find something really nice. do a search in the forums on different liquids, you can find a set of charts put together by one of the members. you could look up "plagurism" or somehting. someone took the charts and set them up on a website and didnt give any credit thats why the plagurism topic may work.

BrianH2O · Apr 18, 2003

Isn't this all very high pressure stuff. They use pressure to maintain is liquid state in a can. If so, the pressure would not certainly break things (rad, pump seals...)

cwb27 · Apr 18, 2003

BrianH2O said:
Isn't this all very high pressure stuff. They use pressure to maintain is liquid state in a can. If so, the pressure would not certainly break things (rad, pump seals...)

It's not high pressure at all. I filled a small cup with stuff last night (my inspiration for posting this).

Intially it evaporated very quickly, but as soon as the cup cooled off the evaporation was so slow I couldn't even see it happening, but I knew it was obviously there. I was able to keep about 2 tablespoons of it for about 20 minutes in open air. Wanted to try a few more experiments with it but I wasn't in the mood to be wasteful.

[EG]~NaTz~ · Apr 18, 2003

well is it a coolant use in phase change systems? if so i wont leak it is all brazed shut. however i am still not sure on what type of cooling you are looking to do with this i dont even know what it is. ill do a little research right now and post again in a few...

[EG]~NaTz~ · Apr 18, 2003

ok a little research done.
http://physchem.ox.ac.uk/MSDS/DI/1,1-difluoroethane.html
it says that it is freon 152.
"Synonyms: difluoroethane, Freon 152, Freon 152A, halocarbon 152A "
some governmental aspects of the chemicals use i think.
http://www.epa.gov/iris/subst/0665.htm

JFettig · Apr 19, 2003

sure in open air itll sit for a little bit, but when you try to stick it on a cpu, itll boil like crazy, wich then will evaporate.... Its probably something that could be fun... another fun thing would be to take crushed ice, and salt, mix it and after a while itll make some goopy slushy stuff that gets down to -15c or so

its real cool...

Warlord2 · Apr 19, 2003

you wouldnt be able to use it in a watercooling type of setup but sure it would work fine if you stuck it in a phase-change unit.

1,1-Difluroethane as a coolent

cwb27

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nealric

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[EG]~NaTz~

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BrianH2O

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cwb27

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[EG]~NaTz~

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[EG]~NaTz~

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JFettig

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Warlord2

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