5 ms·
Storing a lot of hydrogen at high pressure requires heavy tanks. Storing a lot of hydrogen at low pressure results in the Hindenburg.
by umvi 5y ago
Storing a lot of hydrogen at high pressure requires heavy tanks. Storing a lot of hydrogen at low pressure results in the Hindenburg.
- ncmncm 5y agoSo, no one would ever use compressed hydrogen for transport aircraft. LH2 tanks weigh practically nothing.
- dragonwriter 5y ago> LH2 tanks weigh practically nothing. Volume, though, is an issue and impacts aerodynamic design.
- ncmncm 5y agoThe weight advantage will prove decisive. On routes served by LH2-fueled transports, the kerosene-fueled dinosaurs will be wholly unable to compete.
- adgjlsfhk1 5y agoyou need to either compress or cryogenically cool. At 1atm and normal temp, hydrogen is about 8x less energy per volume then her fuel.
- ncmncm 5y agoVolume is cheap, in aircraft. Weight is dear.
- leaded_syrinx 5y agoWe already have drones that can hover for hours using hydrogen in carbon fiber tanks... https://www.borntoengineer.com/hydrogen-powered-drone-sets-world-record https://www.borntoengineer.com/hydrogen-powered-drone-sets-w...
- ncmncm 5y agoTiny aircraft have an enormous advantage over those big enough to move much. It is easy to make an RC plane that can fly straight up. Or, an ornithopter. A 747 flying straight up is impossible. A 747-sized ornithopter is impossible. Those "tictacs" swooping around navy ships are most likely liquid-fueled drones. If they haven't shot any down yet, that is a disgrace.