Hydrogen Data

The hydrogen data resource page lists key constants useful for executing the elementary calculations.

Hydrogen Density

bar PSIA Kelvin °C kg/m3 lbm/ft3
Common standard 1 14.5 288.15 15 0.0841 0.00525
DIN 1343 1.01325 14.7 273.15 0 0.0899 0.00561
ISO 2533 1.01325 14.7 288.15 15 0.0852 0.00531
Compressed at 200 bar 200 2900.8 288.15 15 14.94 0.93269
Liquefied 1.01325 14.7 20.28 -252.87 70.96 4.4296

Hydrogen Heating Values

HHV LHV Units
39.4 33.3 kWh /Kg
60920 51591 BTU/lb
141.7 120 MJ/kg
3.54 3 kWh/Nm3
341 290 BTU/ft3
12.7 10.8 MJ/Nm3

Volumetric heating values are given at 1 bar 0°C

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