Re:Toyota announces sustainable vehicle ecosystem [video]
by gambiting on Friday June 07, 2019 @06:20AM
(#20123150)
Can someone explain to me how hydrogen import would work if hydrogen literally leaks through any container it's in? A lead bottle with hydrogen will evaporate naturally within month or two - how is any substantial amount going to survive few weeks at the sea?
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Re:Toyota announces sustainable vehicle ecosystem [video]
by ljcn on Friday June 07, 2019 @07:18AM
(#20123401)
The Mirai uses carbon fiber tanks for this reason.
Some good info here on the transportation problem: https://www.thechemicalengineer.com/features/japan-taking-a-...
Re:Toyota announces sustainable vehicle ecosystem [video]
by ljcn on Friday June 07, 2019 @09:33AM
(#20124275)
Actually having now read a link elsewhere in this discussion (https://www.thedrive.com/tech/26050/exclusive-toyota-hydroge...)...
It seems that _liquid_ hydrogen escapes from small containers fairly quickly (weeks) and requires temperatures close to 0K, so cars use pressurized hydrogen _gas_ (700 bar for the Mirai) which doesn't escape.
_Mass_ storage of liquid hydrogen is no problem (months).