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In the 70s engineers in CEA in France modified some cars on the campus to run on liquid hydrogen. Apparently burning hydrogen in a combustion engine is pretty s
by wazoox 6y ago
In the 70s engineers in CEA in France modified some cars on the campus to run on liquid hydrogen. Apparently burning hydrogen in a combustion engine is pretty straightforward. I think that's the plan about future H2 planes, make them use turbofans slightly modify to burn H2 instead of kerosen.
However the big problem is storing H2 onboard. Most of the fuel is in the wings, and very cold liquid hydrogen (icing) as well as very heavy high-pressure tanks won't fit there. That's why I mentioned that an entirely new concept may be necessary to make room for the fuel tanks inside the fuselage.
- rjsw 6y agoThe Airbus proposals from a couple of weeks ago had the fuel tanks in the rear of the fuselage.
- wazoox 6y agoYes, that's the problem. You embark much less energy as fuel, lose lots of room for passengers and cargo; I very much doubt this could make sense economically. My brother-in-law who is an aeronautical engineer at Airbus isn't convinced, either.