Quote:
Originally Posted by mejunkhound
Anyone built a air liquification setup from old AC parts?
Thought maybe a 3 stage (propane, CO2, air) AC type setup would work.
Have a few old compressors sitting around.
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I think you might be on to something here... Compressors in series...
You might check out the Xtreme System Forum
FORUM. I don't recall anyone trying to liquify air, but I do know that there are some two-stage compressor systems that have been built. As I recall, they used a volumetrically smaller compressor in the second stage, so the same would apply for subsequent stages, too.
Steel tubing seems appropriate instead of copper.
Some way to remove the heat of compression between stages.
Maybe do your initial testing behind a blast wall (no joke).
Sounds like a fitting project for a mad scientist.
Keep us posted... this kind of thing could apply to low temperature ASHP projects, too.
Also two stage compressors for making DIY vacuum pumps.
How would you separate the gases?
Best,
-AC