writes:
On Tue, 25 May 2021 22:13:15 -0400, wrote:


Hydrogen isn't really a fuel in the practical sense. It is just a
fairly inefficient storage scheme.

Incorrect. Airbus is planning on using H as a replacement for
JET-A and burn it in standard turbofan engines.

https://www.airbus.com/innovation/ze...gen/zeroe.html

"All three ZEROe concepts are hybrid-hydrogen aircraft. They are
powered by hydrogen combustion through modified gas turbine engines.
Liquid hydrogen is used as fuel for combustion with oxygen."

If you are deriving your hydrogen from water, you use more energy
getting it out than you get when you burn it.

Incorrect. One mole of H requires 286kJ to disassociate from the
O2 molecule in water. One mole of H burned produces 570kJ.


Have you priced helium lately?

Do you really not know the difference between Helium and
Hydrogen? One is 75% of the matter in the universe, the
other is 24% of the matter in the universe. The ratios
are much more lopsided when you look at planetary sources.

The scarcity of He is the reason for the high prices.