Effect of Gas Composition and Utilisation

The fuel gas composition describes the cell voltages for a fuel gas composition of 97% CO/3% H2O, the current density is 170 mA/cm, whereas for 1.5% H2/3% CO/75.5% C02/20% H2O, the current density is 100 mA/cm. In contrast to this, the composition with higher hydrogen (97% H2/3%H20) content gives the current 

2 Open cell voltage versus the O/C ratio for SOFC at 1000°C 

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