کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145306 | 1497341 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of tube radius on creep for an anode supported tubular solid oxide fuel cell: Experimental and finite element simulation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of tube radius on creep for an anode supported tubular solid oxide fuel cell: Experimental and finite element simulation Effect of tube radius on creep for an anode supported tubular solid oxide fuel cell: Experimental and finite element simulation](/preview/png/5145306.png)
چکیده انگلیسی
In this study, we present a creep analysis for an anode-supported tubular solid oxide fuel cell (SOFC). The effects of tube radius on creep and stress are also studied. The as-sintered residual stress is measured by an X-ray diffraction instrument. Simulated result is consistent with the measurement data. The finding shows that the fracture starts in the electrolyte for the big tube radius after 50 000Â h because of the mismatch creep properties between SOFC layers. As tube radius increases, the hoop stress in the electrolyte also increases because the growth of elastic strain is dominant compared with creep relaxation. Hoop stress in the electrolyte exceeds the tensile strength when the tube radius is larger than 30Â mm for our SOFC system. The tube radius should be designed to be in millimeter level or sub-millimeter level to decrease the growth of hoop stress in the electrolyte and ensure long-term reliability at high temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 36, 7 September 2017, Pages 23198-23206
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 36, 7 September 2017, Pages 23198-23206
نویسندگان
Wenchun Jiang, Yun Luo, Zhiquan Wei, Yucai Zhang, Yu Wang,