also very little hydrogen is actually green. in order to actually make hydrogen first you have to burn fossil fuels.
Comment on Airbus previews next-gen airliner with bird-inspired wings
echodot@feddit.uk 5 weeks agoIt’s because hydrogen is a terrible fuel. In theory it could work, but there were so many practical problems with compressing the hydrogen into storage tanks and then keeping it in those storage tanks but the amount of effort you have to go through to make it work completely negates any performance benefits.
acosmichippo@lemmy.world 5 weeks ago
scarabic@lemmy.world 5 weeks ago
But its only exhaust is PuRe wATeR!! /s
It still makes me LOL to see people tout this, when battery EVs don’t exhaust anything.
milicent_bystandr@lemm.ee 5 weeks ago
Alas, battery EV passenger jets are a long way off.
echodot@feddit.uk 5 weeks ago
They are without significant improvements in battery technology. Lithium Ion simply doesn’t have the energy density to be able to lift its own weight.
crapwittyname@lemm.ee 5 weeks ago
There’s also the fact that they are too explosive to conform to flight safety standards.
scarabic@lemmy.world 5 weeks ago
It’s true, but so is retooling aviation around hydrogen. This is just a prediction but I think before that ever happens, EITHER we’ll have light batteries that are safer and more effective that Lithium OR we’ll have carbon-neutral ways to produce hydrocarbon fuels that can be used with conventional aircraft.
Hydrogen has struck out on personal electronics and ground transportation. Now it’s angling for aviation where its energy density may matter more. But it hasn’t been losing because of energy density.