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HappySqurriel said:
TWRoO said:
Kynes said:
Hydrogen is a highly reactive gas. It burns as soon it's in contact with oxygen, look at the Fukushima explosions. The heat dissociated the water onto oxygen and hydrogen, and it burned in a very violent explosion. It's much more instable than petrol.

Surely it won't burn if it is simply released into the air?, it needs a spark/flame or to be in extreme heat.

Years ago when I worked at the welding gas warehouse we carried a few bottles of compressed Hydrogen and (from what I remember) it is one of the only gasses which will react (almost) immediately without the need of a spark or flame ...

With that said, hydrogen fuel cells are designed to operate without storing any hydrogen which should be relatively safe.

The safe fuel cells are costly as hell to manufacture, so it's impractical in the short-mid term.