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H2 Gas Fuel Properties:
2) Low autoignition temperature
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H2 in AIR 510°C-570°C
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CH4 in AIR 632°C - 645°C
3) High diffusivity
4) Flame temperature
emissions level ~ 3 times higher. (NOX)
H2 & AIR 2127 °C
CH4 & AIR 1937°C
5) High Flame speed
4 & AIR 34 cm/sec
Driven by Solar/Wind/Geothermal Electricity, large scale electrolysis of H2O to create H2 gas is very feasible
with processors now available. Large scale storage of the produced H2 is also quite feasible with the current
state of compressor/tank technology, although a comprehensive safety analysis of a large (MW scale) H2 storage tank array is
yet to be commissioned. (Usage of H2 fuel for co-gen at refineries, which has been done historically since the '70s,
relies on a large scale generation rate from reformers rather than large scale storage). This safety analyis will be
critical in the years to come if H2 is to gain a foothold as a legitmate renewable energy fuel.
The Following table is an example of GE's involvement with H2 co-gen at various locations. (note:
Goal is to reach 100% H2 fuel utilization)

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