Making liquid nitrogen from scratch (an absurd amount)
A video on YouTube. In Science & Engineering, a Krater category.
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The creator attempts to build a DIY liquid nitrogen generator from scratch using a second-hand cryocooler, a used nitrogen generator tube, and a dewar, ultimately successfully producing liquid nitrogen at a rate of 0.58 liters per hour.
From the video
Answers: How do you build a DIY liquid nitrogen generator?
- Liquid nitrogen generator building
- Gifford-McMahon cryocooler operation
- Membrane nitrogen generation
- Cryocooler compressor setup
- Liquid nitrogen condensation testing
What it concludes
- A used Sumitomo RDK-408L3 cryocooler can successfully reach temperatures cold enough to liquefy air and nitrogen.
- A makeshift liquid nitrogen generator built from used and surplus parts can produce approximately 0.58 liters of liquid nitrogen per hour.
- The DIY liquid nitrogen generator achieved a production rate of about 14 liters per day, coming close to commercial systems.
- The vacuum-insulated dewar successfully held vacuum pressure and stored liquid nitrogen without boiling off immediately.
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