[at-l] Shane, Shane

[RoksnRoots at aol.com (RoksnRoots@aol.com)]

In a message dated 6/15/2005 1:12:56 AM Eastern Standard Time, 
charles@uswnet.com writes:
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"A gallon of gasoline contains about 2600 times the energy of a gallon of 
hydrogen."
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          Unfair. Why? Because no one is going to use an unpressurized 
"gallon" of 1 gravity pressure hydrogen. They are going to pressurize it. 

        Your link looks suspiciously like nuclear energy propaganda. I do 
know BMW developed a 75-layer laminated hydrogen tank that got about 200mpg 
burning hydrogen in a combustion engine. You are correct that the hydrogen atom is 
smaller than the atoms of any material designed to contain it. That's why BMW 
answered this with overlamination. Still, they say the car can't sit more than 
2 weeks without losing fuel from the tank.

           There's a lot to be discussed about getting the input to energy 
ratio down with hydrogen. We did discuss the new ceramic electrolysis device 
designed to cut the energy needed in half lately. 

             To keep it short, dedicated solar, geothermal, and maybe some 
dams dedicated to hydrogen would cut down the energy ratio. What they are 
talking about is investment infrastructure. 

         You would be surprised how close the theoretical ratio would come 
with a battery supplemented hybrid vehicle partly recharged with a solar cell 
body. 

            By kilogram, hydrogen has over three times the energy of 
gasoline. Also an electric fuel cell engine is much more efficient than a combustion 
engine.


                 
"Gasoline, which is derived from refining crude oil, contains much more 
energy (in millions of Joules per kilogram) than coal (almost twice) or wood (three 
times). Although methane and hydrogen both have higher energy content than 
gasoline, their gaseous form creates storage difficulties. Furthermore, hydrogen 
must be synthesized, which requires energy. As a comparison, with a 
conversion rate of 100%, it would require 100 hours to capture the solar energy equ
ivalent of 1 kg of gasoline on a surface of one square meter."