Originally Posted by
Momoe
By energy dense, I'm referring to the potential energy per kg compared to Jet A-1, this is not related to volume.
Relative energy densities
The only density that matters is how much volume of fuel you need to travel a given distance, a heavy fuel like gasoline is 5 times more efficient than liquid hydrogen. In any moving vehicle that is important, if it’s a static installation, no problem you can pump it along a pipeline uncompressed.
But then there would be no point, you could have used the electricity directly, or store it in batteries, current technology is moving that way, not hydrogen. We need a quantum leap in technology for hydrogen to be more efficient.