"Steve Firth" wrote in message
.. .
W K wrote:

b) lets see your born-haber cycle calculations.

You don't need them:

Hydrogen 33.3 kWh/kg
Methane 13.9 kWh/kg
Gasoline 12.7 kWH/kg

Hence if you use H2 as a fuel and derive it from methane (which is the
best feedstock at present) you will need to burn hydrogen equivalent to
1.7 kg of methane to do the same work as burning 1 kg of methane.

Where on earth do you get that from?
Your approach might work if you could give precise H from methane yields
(real ones)

Congratulations on supporting the energy economy of the madhouse. A
hydrogen "economy" looks set to reduce the mpg of the average car from
35 to 14 mpg.

Perhaps you should have read my post to the end.
The whole idea of a hydrogen economy is for it not to be produced from
hydrocarbons out of the ground.

Which always looked like very long distance future pie in the sky.