The energy density of hydrogen
| Energy density: | MJ/kg | MJ/m³ |
| Gaseous hydrogen (700 bara en 20 °C) | 142 | 4.500-5.300 |
| Liquid hydrogen (1 bara en 20 K) | 142 | 8.500 |
Hydrogen has a very low volumetric energy density of 8 MJ/L for liquid hydrogen3, 5.6 MJ/L for compressed hydrogen gas at 700 bar pressure4, compared to 32 MJ/ ... |
The hydrogen may be around 5.7% of the total mass, giving just 6.8 MJ per kg total mass for the LHV. See note above about use in fuel cells. |
Importantly, hydrogen has the highest gravimetric energy density of all known substances, i.e. a lower heating value (LHV) of ~120 kJ/g. |
On a mass basis, hydrogen has nearly three times the energy content of gasoline—120 MJ/kg for hydrogen versus 44 MJ/kg for gasoline. On a volume basis, however, ... |
Its energy density is between 120 and 142 MJ/kg. This means that for every 1 kg of mass of hydrogen, it has an energy value of 120-142 MJ. It is highly ... |
2 окт. 2019 г. · By contrast, hydrogen has an energy density of approximately 120 MJ/kg, almost three times more than diesel or gasoline. |
20 янв. 2022 г. · Although Hydrogen has the highest gravimetric energy density of all known substances (120-142 MJ/kg), it falls short to natural fuel sources ... |
Lithium ion batteries are able of achieving of 260 Wh/Kg, which is 151 energy per kg for hydrogen. Because of its energy density and its lightweight, hydrogen ... |
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