Physics
Hydrogen has physic properties allowing it to be a promising energy vector and zero-emission powered transport solution.
H2 can be used as a fuel – instead of fossil-fuel – providing useful and zero emission energy. Gaseous hydrogen is usually compressed from 350 bar to 700 bar due to its lightweight and low density.
Molecular hydrogen is also called di-hydrogen. This diatomic molecule is composed of 2 hydrogen atoms held together, giving its chemical formula called H2.
Hydrogen is the most abundant chemical element, estimated to contribute 75% of the mass of the universe, being present in nearly all molecules in living things. It can be used as a zero-emission power source (zero-emission during use and zero-emission for the complete logisitic chain from well to wheel could be envisaged when using renewable electricity), releasing only water vapor and heat in the atmosphere during the use through a fuel cell.
Molecular hydrogen is also called di-hydrogen. This diatomic molecule is composed of 2 hydrogen atoms held together, giving its chemical formula called H2.
Hydrogen boiling point is at – 250 °C at atmospheric pressure. Absolut System technologies will help to manage this extreme temperature in order to use hydrogen as a “normal” fuel
Increasing the pressure of a gas allows to increase its density. So, at 700 bar, which is 700 times normal atmospheric pressure, hydrogen has a density of 42 kg/m3, compared to 0.090 kg/m3 under atmospheric pressure and room temperature conditions.
The density of liquid hydrogen is higher, around 70 kg/m3 at -250°C (20 K) and 1 bar pressure, allowing to store a larger quantity with longer mobility autonomy.
Hydrogen can be produced from a variety of resources, such as natural gas as it is produced today in large part, or renewable energy like solar, wind, nuclear power or biogas