[TheForge] Hydrogen storage (was: Hellooooooo!)

[Bruce Freeman]

That's an imponderagble.  "Efficient" is not a term out of physics, the
way force and energy are.  You have to explicitly define what you mean. 


For example, imagine two fuels:  hydrogen, and some liquid fuel with
exactly the same energy content per unit (weight, volume or whatever you
want).  Now, you put the liquid fuel into your tank and drive away.  The
hydrogen you have to store in a heavy cylinder or some other apparatus. 
Immediately, hydrogen is less 'efficient' because of the apparatus.  

Does it make it up in some other way?  Well, it burn to water.  No
faulting that.  If your comparable liquid fuel burns to something that
kills the driver behind you, there might be some objections to it. 
(OTOH, If we could get it to kill the driver in front of you, that would
be a selling point!)

So, define away, and we can talk about it.

Bruce
NJ

>>> osan at netlabs.net 5/8/2006 7:52:29 PM >>>
Anyone know offhand how efficient hydrogen is, energy-wise, on a per 
volume or per-weight hasis when compared to gasoline and diesel?

Chris Kilpatrick wrote:
> Rich,
>      In my previous post on getting hydrogen from water, I was trying
to make the point that water is plentiful in most places and could
probably be the fuel source itself.  (The car would be engineered to
separate the hydrogen and oxygen use both, or just the hydrogen).  The
technology is very lo tech and water is very stable.  The only hazardous
possibilities, if done correctly, are possible electric shock if your
fuel tank is ruptured in a crash, but even that could be engineered
around.
> 
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