> Andrew Fildes <afildes@xxxxxxxxxxxxx> wrote:
>
>
> Wot, it's difficult to hold the stuff down?
Yep !
> I would have thought that the main problem is very low energy yield
> for bulk.
> LPG is way down on petrol and methane even lower so I would assume
> that H2 would lack ooomf to say the least.
Yeah, to get a reasonable "energy density" it needs to be liquid for
storage/transportation, not a problem for natural gas, just requires moderate
pressure, but for H2 it needs to be cooled (about 20K ?) which presents extra
problems.
...Wayne
Wayne Harridge
http://lrh.structuregraphs.com
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