Comment by nandomrumber
16 hours ago
Has the hydrogen storage problem been solved yet?
Last time I checked it needs to be stored in cryo / pressure vessel and it also leaks through steel and ruins its structural properties in the process.
16 hours ago
Has the hydrogen storage problem been solved yet?
Last time I checked it needs to be stored in cryo / pressure vessel and it also leaks through steel and ruins its structural properties in the process.
There are some innovation like hydrogen paste but it’s not going to be useful for a combustion engine cycle.
The Mirai does not combust hydrogen.
We store hydrogen all the time for industrial processes. It's not some super science, it's just expensive.
We do? Where? Using what fabrication technologies.
I’ve worked mostly in or adjacent to manufacturing and primary industry.
As far as I’m aware, the majority of hydrogen production is use on site, and mostly for ammonia production.
There isn’t really much in the way of hydrogen storage and transportation, it’s mostly used where it’s generated.
And if we use expensive as a proxy for heavy / energy intensive, which it is in the case of hydrogen, that goes a long way to preclude it from anything like being useful for transportation.
There is hydrogen all over the place in exactly where you'd expect to see it: petroleum refineries and petrochemical process plants. The metallurgy of handling and storing hydrogen is well understood and has been for a long time. You just have to use alloys resistant to hydrogen embrittlement. Hydrogen is squirrelly - it doesn't like to stay put but you can make it stay put long enough to make it useful.
When you are specifying valving or piping in a refinery one of the big things you have to find out is how much hydrogen is in the process because a lot of stuff in a refinery has at least some hydrogen and it will destroy common alloys.
> Has the hydrogen storage problem been solved yet?
No. Not for using Hydrogen for transportation. People have been trying to use Hydrogen for transportation for more than 50 years. These people are trying to bend the laws of physics. And there are a lot of con artists in the mix who prey on the gullible. See the convicted fraudster Trevor Milton of Nikola fame.