How does it relate to gasoline or diesel storage?
Hydrogen has more energy per weight, but less energy per volume than any other fuel. One kilogram of hydrogen has approximately the same amount of energy as one gallon of gasoline. Hydrogen is ideal for use in jet airplanes because it is so light. Jet airplanes that use hydrogen require larger fuel tanks, but, because hydrogen is so light, the wings can be smaller, the engines less powerful and the number of passengers can be increased. Note that if the airplanes that had hit the WTC towers in New York had been carrying hydrogen, instead of jet fuel, the towers would still be standing today. The fire from hydrogen would have been over in a matter of seconds, meaning that there would not have been enough prolonged heat to melt the steel girders. Airbus is currently manufacturing a new plane to run on hydrogen, called the “Cryoplane”. The Russian airline, Aeroflot, is also working on a hydrogen airplane for commercial passenger travel.
