Abstract

The high potential of reversible (or regenerative) solid oxide cell (rSOCs) systems for energy storage application motivates the present study which focuses on predicting rSOC performance through mathematical modeling. An intermediate fidelity model that can be used for identifying favorable electrochemical and thermal performance of rSOCs is developed and briefly reported here. The model is employed to investigate the rSOC performance particularly for pressurized operation. It has been observed that rSOCs can benefit from pressurized operation particularly in solid oxide fuel cell (SOFC) mode of operation. In the solid oxide electrolysis (SOEC) mode there are also advantages from pressurized operation, particularly above a certain current density. It has also been observed that the SOEC performance is more affected by changing the inlet feedstock condition (pressure and temperature) than the SOFC mode at pressurized operation.

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