Forum Archive Index - June 2003

[Robin Benson <rob@hammerheadmedia.co.uk>]

What about lattice storage? I seem to recall that something along these 
lines solves the issues you're raising here -- no references offhand 
mind you.

Robin

On Sunday, Jun 1, 2003, at 23:16 Europe/London, Mills wrote:

> The big problem as I see it is the storage of the hydrogen gas in a
> moving vehicle esp. a heavy truck  If you think about the fuel for an 
> IC
> engine, if a truck's tank holds 200kg (say 300L) of fuel, the rough
> equivilent amount in energy terms would be about 80kg of H2.  In
> conventional compressed gas cylinders, a large one weighs about 90kg 
> and
> would hold 0.8kg H2 (~50L internal volume at 200 atmosphere/ 2900psi). 
> So instead of a 60kg conventional tank (guessing), you need a high
> pressure tank that will need to be over 3500L in internal volume to 
> hold
> 700 cubic metres of H2 at room pressure (storage won't be light say 9T
> in conventional cylinders).  I'm sure that long haul trucks would hold
> alot more than 300L of diesel fuel.  Shudder to think what would happen
> if there was an accident with explosive gas instead of relatively safe
> diesel. [...]


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