کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7714198 1497437 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
3D CFD/FEM analysis of thermomechanical long-term behaviour in SOFCs: Furnace operation with different fuel gases
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
3D CFD/FEM analysis of thermomechanical long-term behaviour in SOFCs: Furnace operation with different fuel gases
چکیده انگلیسی
Full commercialisation of the solid oxide fuel cell (SOFC) technology is limited by technological challenges, in particular due to the thermomechanical reliability of the components. The long-term thermomechanical behaviour is especially affected by the operation environment. Most of the research and development studies, as well as laboratory studies are performed within furnaces rather than operating in a real system environment. However, the thermomechanical response of fuel cells operating in the furnace, especially operating with different fuel gas compositions is not fully understood, yet. The present study investigates the thermomechanical comparison of H2, 77% CH4 and 38% CH4 operation. A three dimensional coupled CFD/FEM sub-model, derived from a whole stack model and experimentally determined data is used. The analyses account both for the thermo fluid flow and the nonlinear elastoplastic, creep strain material behaviour. The thermomechanical behavior of the most favourable operation condition has been analysed for 1200 h operation time. The results are validated qualitatively and quantitatively using post-mortem images and creep strain data, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 36, 28 September 2015, Pages 12362-12369
نویسندگان
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