کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7712929 1497423 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Computational analysis of IR-SOFC: Thermodynamic, electrochemical process and flow configuration dependency
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Computational analysis of IR-SOFC: Thermodynamic, electrochemical process and flow configuration dependency
چکیده انگلیسی
Fuel cell is the most promising candidate for future energy system as it is energy efficient and utilizes a renewable fuel. However, there still is need for upgradation and a fully paired computational fluid dynamics (CFD) approach (based on the finite volume method). A 3D simulation of planar Solid Oxide Fuel Cell (SOFC) having internal reforming has been carried out by examining the geometry of a single cell which comprises of a fuel channel, air channel, cathode, anode, and electrolyte layers. Cell parameters such as temperature, current density, concentration of fuel species, electro chemical processes and voltage are analyzed for both co-flow and counter-flow configurations. The obtained finite volume results were validated with experimental and numerical results showing good agreement within acceptable limits. An increase in inlet temperature resulted in significant increase in cell operating voltage as well as cell power density and the cell efficiency increases by 12-13%. It is also observed that the co-flow configuration showed more uniform current density and temperature distributions as well as smaller temperature gradients. Therefore, co-flow configuration is superior as it experiences low thermal stresses in PEN structure and enhanced cell life.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 2, 12 January 2016, Pages 1259-1271
نویسندگان
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