کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1293135 1498028 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of the thermal field of a seal-less planar solid oxide fuel cell
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Analysis of the thermal field of a seal-less planar solid oxide fuel cell
چکیده انگلیسی

This work focuses on the thermal behavior of an anode-supported planar solid oxide fuel cell (SOFC) running under different operating conditions and fuel compositions. A seal-less in-house ceramic housing was specifically designed and built to test the fuel cells and characterize their electrical performance as well as the thermal field established across the anode surface area. The housing design we used allowed us to measure the temperature in 8 different positions along the cell radius. Our experimental sessions were thus dedicated to observe the electrochemical performance and the established temperature field across the SOFC active area under several operating conditions, obtained by varying the inlet fuel composition, the fuel utilization factor and the current density, respectively. The fuel composition was varied by feeding the SOFC with hydrogen fuel, diluted-hydrogen and finally methane, in a direct internal steam reforming configuration. During each experiment, the temperature field across the cell was measured while varying the current density; results were compared together among the different fuel compositions used, showing a consistent thermal gradient established even with relatively small-sized cells. The paper also outlines key issues in the development of ceramic housings with multi-measurement capability.


► Thermal field measurements of planar solid oxide fuel cells.
► In-operation thermal homogeneity: effect of current and fuel.
► Key issues in multi-measurement capability of SOFC.
► SOFC modeling assumptions and validation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 204, 15 April 2012, Pages 100–105
نویسندگان
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