3 ms·
This fuel is 3% hydrogen and is claimed to achieve 200% the MPG of gasoline. Hydrogen has 3x the energy so that gets us to 9%. Let's say hydrogen has 4x the e
by mikeash 8y ago
This fuel is 3% hydrogen and is claimed to achieve 200% the MPG of gasoline.
Hydrogen has 3x the energy so that gets us to 9%.
Let's say hydrogen has 4x the efficiency of turning energy into miles (which I think is a reasonable estimate), so that gets us to 36%.
This stuff may be denser than gasoline. It's 60% water. Let's make the extremely generous assumption that the rest of the stuff occupies no space at all, giving a density of 1.7kg/L. Gasoline is 0.7kg/L, so that's an improvement of 2.4x which gets us to 86%. Still more than a factor of 2 short of the claim.