Hi guys! Saw this article on BMW saying, hydrogen is the next best thing – from electric cars.
Can anyone ova here, explain in a nutshell how hydrogen cars work? How it’s stored? How it’s made / refined heard its (h2o something)?
The safety of it, in case of an accident?
The transportation of the liquid?
Also, can hydrogen cars accelerate as quick as the Tesla’s? 😯
Thanks!
In: Engineering
One note, hydrogen in a car is stored as compressed gas, not a liquid. To keep hydrogen a liquid, you have to keep it really cold. And it will boil off continuously from heat leakage through the insulation. This is why rockets that use liquid hydrogen keep topping the tanks off until right at liftoff. The energy density of compressed hydrogen gas is not that good. Gasoline has a lot more energy per volume, so you are going to go farther on a tank of gasoline than a same size tank of hydrogen.
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