this post was submitted on 09 Sep 2023
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World’s first crewed liquid hydrogen plane takes off::undefined

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[–] A_A@lemmy.world 7 points 1 year ago* (last edited 1 year ago) (1 children)

LEL for Hydrogen: 4.0 (% in air)
UEL is 75 %
This is the most severe (wide range) for any fuel.
LEL and UEL Explained (Explosive Gas) - Projectmaterials

This is on top to hydrogen enbrittlement and low temperature enbrittlement of metals.

Good luck with the insurance fees for commercial flights.

[–] agressivelyPassive@feddit.de 4 points 1 year ago (2 children)

Aviation is the one field, where burning some form of carbohydrate is actually the only viable option. Batteries may be an option for short flights, but I don't see any solution for long haul flights.

Whether the fuel ends up being (synthetic) kerosene or some plant oil stuff doesn't really matter, the turbine isn't going anywhere.

Yeah getting aircraft onto renewable energy is probably the lowest priority, if everything else was renewable it wouldn't even matter if they were never renewable.

[–] A_A@lemmy.world 1 points 1 year ago (1 children)

I agree...
( except for a small typo : it's carbohydride or hydrocarbon )

[–] MonkCanatella@sh.itjust.works 6 points 1 year ago (1 children)

no no, the planes need a big plate of spaghetti before long haul journeys

[–] A_A@lemmy.world 3 points 1 year ago

Lol, nice 😋,
Also it's amazing how birds can effectively do that !