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Adobe Power & Controls LLC
223 N Guadalupe St. #514
Santa Fe, NM 87501
505-603-1162

H2 Generation (Wind & Solar Photovoltaic) and Co-Generation of Electrical power Projects.
 
We are studying the feasibility of 100% H2 usage in a typical Gas Turbine shown below:

gascombustionchamber.gif

H2 Gas Fuel Properties:

  • 1) High flammability: the flammability limits of H2 in Air by volume are
    • LEL (lower explosion level) = 4%
    • UEL (upper explosion level) = 74%
  • 2) Low autoignition temperature
    •
    • H2 in AIR 510°C-570°C
    • CH4 in AIR 632°C - 645°C
  • 3) High diffusivity
  • 4) Flame temperature
    •
    • The flame tempertaure for hydrogen gas is ≈ 150 °C higher than the flame temperature for natural gas →
    • emissions level ~ 3 times higher. (NOX)
      •
    • H2 & AIR 2127 °C
    • CH4 & AIR 1937°C
  • 5) High Flame speed
    •
    • Premix flames for stoichiometric reactants
    • H2 & AIR 320 cm/sec
    • CH4 & 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)

geh2installs.gif