DOI: 10.33915/etd.6607
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Refined computational modeling of SOFCs degradation due to trace impurities in coal syngas

Abstract: The Solid Oxide Fuel Cell (SOFC) is a good alternative for clean and efficient power generation. These cells can be operated directly on a wide variety of fuels including biogas, hydrocarbon fuels and synthesized coal gas (syngas), which is a promising avenue for utilization of coal with much less environmental impact. One of the challenges in this technology is poisoning of SOFC anodes by trace impurities contained in coal syngas. One such impurity, phosphine is known to cause catastrophic failure of SOFC ano… Show more

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Cited by 2 publications
(3 citation statements)
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“…Lower hydrogen concentrations in the electrochemically active region (y , ) increases the polarization resistance because of the hydrogen starvation in electrochemically active areas, which is accounted for in the model by Eqs. [6] and [7].…”
Section: Resultsmentioning
confidence: 99%
“…Lower hydrogen concentrations in the electrochemically active region (y , ) increases the polarization resistance because of the hydrogen starvation in electrochemically active areas, which is accounted for in the model by Eqs. [6] and [7].…”
Section: Resultsmentioning
confidence: 99%
“…The in-house developed multiphysics simulation is designed to be robust for prediction of interaction between anode materials with different types of contaminants (e.g., PH 3 , H 2 S, H 2 Se, AsH 3 , HCl, and user-defined contaminant element). With the model parameters calibrated in the previous study, the performance of the tubular SOFCs with different levels/types of contaminants is predicted (18)(19)(20)(21)(22)(23)(24).…”
Section: Impact Of Contaminantsmentioning
confidence: 99%
“…During the cell operation, the contaminants diffused from the fuel channel/anode interface to the anode/electrolyte interface, causing further irreversible degradation. The 1D model was also extended to a three-dimensional (3D) model for planar cell application (23,24). The effects of PH 3 were thoroughly analyzed with the simulated polarization curve and impedance spectrum from the 3D model.…”
Section: Introductionmentioning
confidence: 99%