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Compressed Hydrogen
Hydrogen is an odorless and colorless (even when burning) gas, with a boiling point of -252.77°C.
Its density of 0.0899 grams/liter make it lighter than the
surrounding air.Hydrogen has the highest energy to weight ratio of all
fuels. The lower heating value is 119,972 kJ/kg.
1 Kg of hydrogen contains the same amount of
energy as 2.1 Kg of natural gas or 2.8 Kg of gasoline.
Hydrogen has the lowest energy to volume ratio of
common fuels. Hydrogen possesses 2.36 kWh/liter as a
liquid, natural gas contains 5.8 kWh/liter and gasoline
contains 8.76 kWh/liter.
The inflamability range in air is very wide from 4 to 75%. The ignition energy is only 0.02 mJ.

The ever cited Hindenburg desaster occured because of the painting which had similar charcheristics to rocket fuel and was charged electrostatically igniting the hydrogen. The Hydrogen burned in one minute but the diesel fuel burned for a longer time causing most of the deaths.

Course materials on hydrogen safety more...
Database with hydrogen related incidents

2006-09-28 08:27 62.47.21.120
2006-05-06 08:21 62.47.7.76
2006-03-16 22:07 62.47.29.255
2006-03-11 21:24 62.47.2.195
2006-03-11 21:15 62.47.2.195
2006-02-20 08:46 62.47.19.221
2006-02-20 08:43 62.47.19.221
2005-06-01 12:00 Admin


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