Temperature and Flow Distributions in Planar SOFC Stacks

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Abstract
Simulation of a planar SOFC stack requires the solution of the mass balances of the chemical species, the energy balances, the charge balance and the channel flow equations in order to compute the species concentrations, the temperature distributions, the current density and the channel flows. The unit cell geometry can be taken into account by combining detailed modeling of a unit cell with a homogenized model of a whole stack. In this study the effect of the asymmetric temperature distribution on the channel flows in a conventional crossflow design has been investigated. The bidirectional crossflow design is introduced, for which we can show more directional temperature and flow distributions.

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