Modeling the concentration profiles of CO and CO2 in a direct carbon solid oxide fuel cell—effect of cathode and electrolyte design parameters

Raj, S.C.; Gnanasundaram, Sakthi; Krishnamurthy, Balaji

doi:10.1007/s11581-020-03834-9

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2021

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“…Sandip Das [9] has used the dusty gas model to develop the analytical expression for the concentration overpotential of DC-SOFC. In our previous work [10], the variation of concentration profiles of CO and CO 2 across the anode electrode was studied as a function of design parameters of the cathode.…”

Section: Introductionmentioning

confidence: 99%

Modeling the performance of direct carbon solid oxide fuel cell -anode supported configuration

Raj

Gnanasundaram

Krishnamurthy

2021

J. Electrochem. Sci. Eng.

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A mathematical model is developed to study the performance of a direct carbon solid oxide fuel cell system (DC-SOFC). Simulation results indicate that in the anode supported configuration, anode design parameters (porosity, tortuosity and anode thickness) play very important role in the performance of DC-SOFC, presented as the polarization curve. The effect of Ag content in anode electrode is found to play a significant role in the performance of the DC-SOFC. The effect of operating parameters, namely pressure and temperature, on the overpotentials (concentration, activation and ohmic) are studied. The concentration profiles of gases (CO2 and CO) as a function of operating current density across the anode electrode is studied. Model results are compared with experimental data and found to compare well.

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Section: Introductionmentioning

confidence: 99%