| Popis: |
Using modeling and simulation, the present work offers parametric study for Planar Solid Oxide Fuel Cell (PSOFC) as a function of fuel gas composition. The study comprises of one-dimensional steady and dynamic state modeling of single PSOFC in Aspen Custom Modeler. The simulations are performed at the interface of fuel channel and anode, and the reaction kinetics, the spatial distributions of temperature and specie concentrations inside the PSOFC are calculated. Steady state model estimates the cell performance as function of CO, and the dynamic model estimates the transient performance degradation, due to Area Specific Resistance (ASR) degradation. Additionally, the dynamic model analyzes the sensitivity of cell performance on input variables, and recovery time for the small variations. The analysis shows that temperature, current density, flow-rate, ASR and fuel composition affect the cell performance. At low current densities, the cell performances are comparable, up to 80% CO in the fuel gas. |
