دانلود مقاله Effect of Flow Channel Dimensions on the Performance of a PEM Fuel Cell Using 3D Modeling
سال انتشار: ۱۳۸۶
محل انتشار: پانزدهمین کنفرانس سالانه مهندسی مکانیک
تعداد صفحات: ۸
Rismanchi – Graduate student, Dept. of Mechanical Eng. Shiraz University, Shiraz, Iran
Akbari – Assistant professor, Dept. of Mechanical Eng. Shiraz University, Shiraz, Iran
solver for the transport equations, while mathematical models for the main physical and electrochemical phenomena were devised into the solver using userdeveloped subroutines. The results of this model will allow detailed study of interdependencies between fluid dynamics, fluid flow, contact resistance, and electrochemical reactions. Polarization curves are obtained for different conditions. Simulation results show the effect of flow channel dimensions on the cell performance. An optimum shoulder size is predicted to exist for the cell’s optimum performance. Acomparison between the polarization curves obtained from the current study and the corresponding available experimental data is presented and a reasonable agreement is obtained. Such CFD model can be used as a tool in the development and optimization of PEM fuelcells.