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Toyota builds experimental hydrogen-powered pizza oven and grill. (www.autoblog.com)

submitted 4 months ago by [email protected] to c/[email protected]

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I wish I got to do fun little projects like this at my job. Anyway, this proof of concept shows that hydrogen would be a great alternative to propane and natural gas for cooking. Hat tip to @[email protected].

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[–] [email protected] -2 points 4 months ago (1 children)

Compress it to 10,000psi and it gets portable enough.

[–] [email protected] 7 points 4 months ago (1 children)

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

[–] [email protected] 1 points 4 months ago (1 children)

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

[–] [email protected] 4 points 4 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 https://www.reddit.com/r/SpaceXLounge/comments/taibc7/in_our_experience_copv_gainpain_flattens_out/