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The Effect of cathode Porosity on Solid Oxide Fuel Cell Performance | ||
| Energy Equipment and Systems | ||
| مقاله 3، دوره 3، شماره 1، فروردین 2015، صفحه 25-32 اصل مقاله (1.38 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ees.2015.54470 | ||
| نویسندگان | ||
| Mohammad Riazat1؛ Majid Baniasadi* 2؛ Mohsen Mazrouie1؛ Mehdi Tafazoli3؛ Mahdi Moghimi Zand1 | ||
| 1School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran | ||
| 2School of Mechanical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran. University of Strasbourg, ICube/CNRS, 2 Rue Boussingault, 67000 Strasbourg, France | ||
| 3Babol University of Technology, Shariati Av., Babol, Mazandaran, Iran | ||
| چکیده | ||
| In the present study, the effect of porosity on the cathode microstructure (50:50 wt. % LSM: YSZ) of a Solid Oxide Fuel Cell (SOFC) has been examined. A 3-D finite element method for Mixed Ionic and Electronic Conducting Cathodes (MIEC) is presented to study the effects of porosity on cell performance. Each microstructure was realized using the Monte Carlo approach with the isotropic type of growth rate. The effect of porosity on the cathode of a solid oxide fuel cell involving the Three Phase Boundary Length (TPBL), electric conductivity of LSM phase, ionic conductivity of YSZ, mechanical behavior and tortuosity of the pore phase were explored in the present work. The cathode having a porosity value between 31 and 34% revealed the maximum TPBL value as well as a high variation in the electrical conductivity of the LSM phase. Pore phase tortuosity was also decreased by increasing the porosity factor. | ||
| کلیدواژهها | ||
| Fuel Cell؛ Microstructure؛ Material Design | ||
| مراجع | ||
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