Exergy Recuperation of Exhaust Heat by Electrochemical Partial Oxidation

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The numerical analysis using cylindrical quasi-2D non-isothermal model quantified the cell performance and heat uptake realized by the MGT-EPOx combined system in which the power generation efficiency increase by 8.5 points, and the result set a target for the SOFC. After the characterization and fabrication process which satisfy multi-physical transport properties required for the electrodes and electrolyte at a high level were established, thin-layered Pt/Al2O3 catalyst which have both the selectivity of partial oxidation at low temperatures and anti-coking was incorporated between the interface of anode and electrolyte by Ratio Frequency Sputtering method. The maximum power density of the fabricated SOFC was 207.5 mW/cm2 using dry methane as fuel and CO selectivity derived by EPOx reaction was 84.3% at 600deg-C.