کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5148209 | 1497386 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Operating maps of high temperature H2O electrolysis and H2O+CO2 co-electrolysis in solid oxide cells
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Operating maps of high temperature H2O electrolysis and H2O+CO2 co-electrolysis in solid oxide cells Operating maps of high temperature H2O electrolysis and H2O+CO2 co-electrolysis in solid oxide cells](/preview/png/5148209.png)
چکیده انگلیسی
This work aims at investigating through a modeling approach the difference in thermal and electrochemical responses between high temperature H2O electrolysis and H2O+CO2 co-electrolysis in solid oxide cells. The study has been conducted by considering a typical planar stack configuration with cathode supported cells. The influence of the local temperature on the polarization curve is discussed. Operating maps are simulated for both electrolysis modes depending on cell voltage and inlet gas flow rate, covering a complete range of gas conversion rates. The optimum domains of operating conditions combining high performances and reasonable temperature elevations are identified. In overall, higher performances are found in steam electrolysis. Indeed, the co-electrolysis process is found to be strongly limited by mass transport through the thick cathode. However, co-electrolysis exhibits an easier thermal management. Finally, the composition of the syngas produced by co-electrolysis is found to be highly flexible through adjustments of the operating parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 39, 19 October 2016, Pages 17233-17246
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 39, 19 October 2016, Pages 17233-17246
نویسندگان
J. Aicart, F. Usseglio-Viretta, J. Laurencin, M. Petitjean, G. Delette, L. Dessemond,