Quote:
Originally Posted by Flieger
So Liquid Hydrogen is cheaper than LN2? Then what is all the fuss about the availability of H2 for fuel cell or hydrogen combustion cars?
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Who said anything about liquid hydrogen? In a generator it is extremely pure and a gas.
The problem with Hydrogen as a motor fuel is the extremely wide range of flammabilit. 5% hydrogen - 95% air will burn. 95% Hydrogen and 5% air will burn! Methane will burn from about 12.5% Methane to 87.5% air all the way to 4.5% Methan and 95.5% Air. Outside that range it will not burn. It is very easy to ignite hydrogen and the fuel air range is extreme. Not safe.
We have hydrogen purity meters making sure air isn't getting into the generator. You do not want the generator exploding.