Originally Posted by
Less Hair
Hydrogen needs too much volume to be stored. Therefore it's not the future aviation fuel for commercial aviation. However it might still be better/ more promising than today's batteries to store energy onboard.
True, but on the other hand...
Jet A = 43 MJ/Kg
Lithium battery = 1 MJ/Kg (43 times the weight of Jet A)
Hydrogen = 130 MJ/Kg (one third the weight of Jet A) assuming LIQUID hydrogen.
Natural hydrogen is lighter than air so the effective weight of and aircraft would be reduced at take-off and would increase as the hydrogen is used...now where did I put that G & T?
The B747 or the A380 are ideal candidates to carry large volumes of hydrogen by using the upper decks and even the large area above the lower deck ceiling...maybe less G and more T next time
