I'm not worried about hydrogen being explosive. Gasoline is more than
explosive enough. Yet the incidence of exploding fuel tanks in even
catastrophic automobile accidents, Hollywood not withstanding, is near
zero. A fuel system designed for H2 could possibly be safer in a crash
than Gasoline.
The problem is that Hydrogen is an escape artist and a vandal,
destroying even equipment meant to handle it safely. It embrittles other
metals and ex-filtrates though them.
If liquid H2 requires constant refrigeration, (you can keep it for a
while in glass vacuum bottles but it will still evaporate.relatively
quickly), You can try to keep it under pressurization, (see steel
embrittlement). It's a PITA to keep cryogenics even if they're inert
which H2 is not, and H2 is one of the worst to handle.
On 9/20/2010 5:41 PM, Jeffery Smith wrote:
And I think hydrogen has a tendency to implode rather than explode (unless you
burn it very fast, with liquid oxygen).
Jeffery
On Sep 20, 2010, at 1:58 PM, P. J. Alling wrote:
On 9/20/2010 1:53 PM, paul stenquist wrote:
On Sep 20, 2010, at 1:09 PM, mike wilson wrote:
P N Stenquist wrote:
I'm engaged in some deep research on new engine designs. You'd be surprised to
learn who the laggards are.
Easy. Anyone designing a propulsive system that has anything other than neat
hydrogen in its fuel tank.
That would be everyone. No hydrogen filling stations out there yet.
Paul
Probably never will be. Hydrogen is a b***h to handle. Just ask NASA.
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