3 ms·
Good question. It's just the physical properties of methane. That's why they use high-pressure tanks because with low-pressure gas storage, the tank needs to
by fuzzfactor 8mo ago
Good question.
It's just the physical properties of methane.
That's why they use high-pressure tanks because with low-pressure gas storage, the tank needs to be bigger than the car.
Energy density of methane is still lower than any other hydrocarbons.
- ACCount37 8mo agoAgain: current day CNG ICEs don't actually have "fuel tanks bigger than the car".
- fuzzfactor 7mo agoThat's because they use high-pressure tanks. Actually higher working presure than regular welders' oxygen tanks. Too bad the higher the pressure, the heavier the tank, especially steel. I had a pretty good job offer from a company that was going to start building CNG tanks out of carbon fiber. This was a few years before the failure of the Titan submersible. CNG has made some progress since then, here's the kind of thing there is now: https://steelheadcomposites.com/sites/default/files/2024-01/CNG-Brochure.pdf https://steelheadcomposites.com/sites/default/files/2024-01/...
- ACCount37 7mo agoCOPVs are not exactly a new tech. They're just taking a while to proliferate to those lower end applications. Not like it's a necessary thing. CNG conversions were already viable even with 00s steel tanks.