چكيده به لاتين
Abstract:
In recent years, a lot of efforts have been devoted to develop high-efficiency power generation systems with low emissions. Among the innovative energy conversion systems, fuel cells are considered as the most promising technologies since they meet safety, sustainability, and environmental benefits. There are several types of fuel cells among which the Solid Oxide Fuel Cell (SOFC) is considered as an emerging technology for both small and large power plants. Employing a solid oxide or ceramic electrolyte is the key feature of SOFC technology which provides high-temperature operation and offers a number of potential benefits like: High efficiency, low emissions, long-term stability, fuel flexibility and relatively low cost.
Development of fuel cells over the past few years has been very fast, but this technology is still in the early stages of progress; however, the potential of the technology is very high. A computational fluid dynamics approach (Comsol multiphysics) is adopted to investigate the effects of different parameters on the performance of the cell.
In this research, mathematical modeling and simulation of planar solid oxide fuel cell according to a button cell structure, concerning the terms of losses polarization, conservation of mass and momentum, temperature distribution, diffusion phenomenon in porous media, electrochemical phenomena in PEN and chemical reactions inside the cell has done.
Although by adopting experiments design, a parametric analysis performed to determine the effect of various parameters on cell efficiency. And ultimately by using Particle Swarm Optimization algorithm, optimized parameters for optimal cell performance are considered in the study.
Keywords: Solid Oxide Fuel Cell, Overpotential losses, Comsol Multiphysics, Design Expert, Particle Swarm Optimization
