Comment on Toyota builds experimental hydrogen-powered pizza oven and grill.

• JohnDClay@sh.itjust.works ⁨6⁩ ⁨months⁩ ago

  As I said, huge pressures. You’ll need super heavy or super exotic tanks.

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  • CrimeDad@lemmy.crimedad.work ⁨6⁩ ⁨months⁩ ago

    What’s so exotic about a composite pressure vessel? They’re already used in scuba and paintball.

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    • JohnDClay@sh.itjust.works ⁨6⁩ ⁨months⁩ ago

      Scuba tanks only go up to 5.5ksi. I think you’d need more like composite over wrapped pressure vessels (COPVs) for 10ksi. Those are relatively new even in spaceflight. SpaceX discovered some new physics when their AMOS-6 mission exploded on the launch pad in 2016 due to oxygen freezing inside the composite layers.

      Here’s some more info on carbon fiber tanks vs COPVs reddit.com/…/in_our_experience_copv_gainpain_flat…

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