Abstract
In this contribution the usefulness of spatially resolved measurements for the optimization of operating strategies for SOFC is demonstrated. First the influence of the flow configuration on power density and temperature is discussed. Increasing fuel utilization results in an inhomogeneous gas and current density distribution. The investigation of the locally resolved gas composition is important for the understanding of critical operating conditions, their avoidance and for elucidating degradation effects. It is found that a counter flow configuration has a more homogeneous temperature dependence compared to a co-flow arrangement. With reformate operation carbon deposition may occur at low water levels which might endanger long-term operation.
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