Large Scale Simulation of SOFC Stack
Components of solid oxide fuel cells (SOFCs) are exposed to high temperatures and gas pressures under operation. Subjected to the starting and stopping operations, the performance of SOFCs is gradually degraded. One of the degradation factors can be thermal expansive deformation due to temperature change, while the expansive deformation under a reducing environment is a characteristic of SOFCs. These deformations inevitably invoke an unexpectedly large stress owing to the mutual constraints of the components, which causes mechanical deterioration. In addition, creep plays a primary role in long-term operation at high temperatures. Our research group is investigating deformation of SOFC by combining mechanical and electrochemical phenomena. The target covers cells from laboratory-level to practical large scale.
Keywords
Electrochemistry, Solid Oxide Fuel Cell, Inelasticity, Large Scale Computation
References
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