Hydrogen requires a theoretical minimum of 3.3 kWh/kg (12 MJ/kg) to liquefy, and 3.9 kWh/kg (14 MJ/kg) including converting the hydrogen to the para isomer, ... History · Spin isomers of hydrogen · Uses · Properties

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.

Hydrogen has the highest energy per mass of any fuel at 120 MJ/kgH₂ on a lower heating value basis. · Hydrogen has a very low volumetric energy density of 8 MJ/L ...

Energy Density. The specific energy of hydrogen – that is, its stored energy by weight – is 142 MJ/kg, the highest of any practical fuel. That's more than 3x ...

The energy density of liquid hydrogen is around 120 to 142 MJ/kg. As the gaseous state requires large tanks, liquid hydrogen is currently considered the most ...

Low reaction energy. Hydrogen as a fuel is used, almost always, by combining it with oxygen and producing water. This releases 141.9 MJ per kilogram of liquid ...

The specific energy input decreases with plant size, but a minimum of about 40 MJ per kg H2 remains. In Figure 8 the required energy input is compared to the ...

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. Specific energy · Energy density Extended... · Heat of combustion

Another attractive feature of hydrogen energy is high energy storage capacity. The energy that can be generated from 1 kg of hydrogen is around 120 MJ (= 33.33 ...