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Notes on Liquifying Air. What is Air? Dry air is made up of approximately 78% Nitrogen, 21% Oxygen, and 1% Argon, by volume. There are trace amounts of other stuff, like CO2, Neon, and Helium. Liquid Nitrogen is fun stuff to mess around with; even better, liquid Oxygen is both fun and dangerous! Who could ask for more? Air also contains 1% to 4% water vapor as well. Carl von Linde Air was first liquefied by Carl von Linde. In the above image, air is compressed (the compressor is the circle), increasing its temperature (red).

So far, it's just a refrigerator. Since the second heat exchanger isn't 100% efficient, the returning air coming out of it will still be below ambient. DIY Liquid Air! Someday I am going to try to do this. There would need to be a trap for water condensation between the first and second heat exchangers. Thoughts I may be re-inventing the wheel here (it's what I do best!) Why? If you have to ask, you're not entitled to know. E-mail me at bill@gizmology.net if you find a mistake! Back. Capacity and Volume conversion online. Hack a Day. Phys.Org - Science News, Technology, Physics, Nanotechnology, Space Science, Earth Science, Medicine.

HACK A WEEK.