Home > Re-Engineer HOD generating system with increased capacity and advanced control features > Liquid Hydrogen: the Fuel of Choice for Space Exploration

Liquid Hydrogen: the Fuel of Choice for Space Exploration

Despite criticism and early technical failures, the taming of liquid hydrogen proved to be one of NASA’s most significant technical accomplishments. Hydrogen is a light and extremely powerful rocket propellant, has the lowest molecular weight of any known substance and burns with extreme intensity (5,500°F). In combination with an oxidizer such as liquid oxygen, liquid hydrogen yields the highest specific impulse, or efficiency in relation to the amount of propellant consumed, of any known rocket propellant. 




Dispite the fact that it is a very good rocket propellant, it is known that the storage of liquid hydrogen is very dangerous. 

Read more: http://www.nasa.gov/topics/technology/hydrogen/hydrogen_fuel_of_choice.html

  1. 04/04/2013 at 08:40

    So am I right if I say that there are no emission/combustion gasses involved in launching a space rocket? That seems strange because the combustion of H2 and O2 delivers just H20 and that is not what I could imagine in space industries. I read there are different stages involved and when dry mass is taken into account (the density of the fuel that has been taken into account) kerosene still is the most effective fuel…

  2. michaeltijskens
    04/04/2013 at 18:36

    Liquid hydrogen is indeed very clean, emitting mainly water (H2O) and some nitric oxide (NO), which is produced by the heat of combustion.

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