THE WORLD'S FIRST MANNED LH2 POWERED FUEL-CELL ELECTRIC AIRCRAFT!
The potential of LH2 powered flight is awesome, given this fact:
The gravimetric energy density of a fuel is the amount of energy that
can be released by a given mass of
fuel. It is typically measured in megajoules per kilogram (MJ/kg) 12.
Liquid hydrogen has a gravimetric energy density of 141.8 MJ/kg 3. In comparison, gasoline has a
gravimetric energy density of 46 MJ/kg 13. Therefore, liquid hydrogen
has a 300%+ higher gravimetric
energy density than gasoline.
However, at this point in development, the efficiency of electrolysis
is ~70-80%, and the efficiency of fuel-cells is about ~60%.
What makes electric motive power of automobiles and aircraft viable
today is the dismal ~20% efficiency of internal-combustion engines
compared to electric motors ~98% efficiency.
“Fueled with green hydrogen produced by Air Liquide at its French liquefaction facility, […]”
Green hydrogen is hydrogen produced by the electrolysis of water,
renewable electricity such as photovoltaics (solar).
H2FLY completes world’s ‘first’ manned liquid hydrogen flight with
By Charlie Currie
on Sep 07, 2023
Germany’s H2FLY has completed the world’s “first” manned liquid hydrogen-powered flight of a fuel cell electric aircraft in a
demonstration in Maribor, Slovenia.
|Location:||Huddersfield, West Yorkshire, UK|
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