Jenifar Mazumder

 

Contact loss simulation of SOFC/SOEC in COMSOL

Figure: Simulation of SOFC model in COMSOL Copyright: COMSOL Figure: Simulation of SOFC model in COMSOL

With the advancement of technology, we have come across numerous power generation/conversion methods. Solid Oxide Fuel/Electrolysis Cells (SOFC/SOEC) directly converts chemical energy to power and vice versa. In order to quantify their capabilities, experiments and the understanding of performance and its losses are of utmost importance.

One of the major problems in SOFC/SOEC is to keep the losses due to defects between layers and surfaces as low as possible. It is difficult to determine the quality between these contact surfaces, which in turn makes it difficult to compare performance results. This affects cell efficiency and electrochemical impedance spectroscopy results directly. Therefore, simulation of physical defects in between cell components inducing performance losses is the first useful step in determining reason to impact correlations.

This master thesis project aims at simulating SOFC/SOEC using COMSOL software along with studying deviations from an ideal cell systems. This allows us to do parameter sweeps of influencing variables on distinct types of losses. We can investigate the theoretical trend of performance of the SOFC/SOEC at different operating conditions for e.g. different electrode configurations, separators, current collectors/suppliers, materials, and chemistry as a function of contact loss or electrode delamination. In order to gain an understanding of the investigated systems, we can apply different hypotheses and study the influence of different electro catalysts, pore distribution, electrolyte composition, and other fundamental parameters directly in the physics interface.