Electrical Resistance Modeling of Solid Oxide Fuel Cells

Solid Oxide Fuel Cells (SOFCs) offer advantages in efficiency, fuel flexibility and environmental concerns in the production of electrical power. Minimizing the electrical losses in the interconnects of planar SOFCs is of critical importance in preserving the efficiency of the stack. Finite element modeling of the electrical resistance of the interconnect components provides a method of optimizing the stack design. Several ANSYS models were developed to help understand the effects of sheet resistance of the cathode and the contact resistance between various components. An analogous field method is used with steady state thermal conduction models representing the electrical conductivity.
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