Future JPL Space Engineer Posted October 3, 2014 Share Posted October 3, 2014 Hi, I'm going to build a Joule Thomson Air Liquefier for my research, I will use 7 Bar air compressor, I wonder is that pressure enough to operate. Stages 1. Air Inlet and compressed to Primary Cooling Core 2. Primary Cooling Core (This is Coolant, which are filled with Dry Ice, Ethanol) 3. Main Cooling Tower 4. Liquid Air Output 5. Regeneration Link to comment Share on other sites More sharing options...
/backslash/ Posted October 3, 2014 Share Posted October 3, 2014 Is this even a thread? Link to comment Share on other sites More sharing options...
Endy0816 Posted October 3, 2014 Share Posted October 3, 2014 What temperature are you cooling the air down to and which gas are you planning to liquify? Link to comment Share on other sites More sharing options...
Enthalpy Posted October 4, 2014 Share Posted October 4, 2014 Even if the expansion produced work, 7bar to 1bar would cool a diatomic gas (a perfect one, but the Joule-Thomson effect is small) to only 170K, not enough to liquefy oxygen nor nitrogen. The Joule-Thomson effect relies on gas imperfection, but typically the effect is smaller than the expansion of a perfect gas producing work. Link to comment Share on other sites More sharing options...
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