Safety and technical info
LH2 maximizes the energy content of the carrier leading to an optimal transportation, meeting the increasing demands for long distance and intensive transportation.
LH2 storage system involves a less dangerous impact in case of explosion compared to gaseous Hydrogen. This leads to the use of more simple and therefore reliable safety systems.
Safety of liquid (compared to gas)
Working values
Test pressure
700 bar (7.0E+07 Pa)
Volume
1000 m₃
Gas
N₂, He, Air or CO₂
Blast
Blast Energy
Ex = 298.07 MJ
TNT Equivalent
W = 66.239 kg TNT
Thermodynamic path of the expansion
Isothermal Expansion
Ex = 458.58 MJ
Isentropic Expansion
Ex = 98.36 MJ
Dispersion (leak)
H2 is 14 times lighter than air and if released will disperse quickly, while propane/gasoline are heavier than air and will create a pool at ground level.
Storage volume for 1 kg of Hydrogen
at STP
11 000 litres
at 700 bar
24 litres at 700 bar
(1.59 kg TNT equivalent)
Liquified
14 litres liquified
(0.002 kg TNT equivalent)
Kerosene and H2 comparison*
Liquid hydrogen stores approximately 2.9 times more energy than kerosene with respect to weight, but occupies at least 4 times as much volume.
Weight
Kerosene
Hydrogen
2.8 times lighter
Volume
Kerosene
1L
H2, 1 bar
> 3000L
700 bar
6L of pressurized H2
liquid
4L
* Сomparison is made for the same amount of energy