کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760109 | 1498040 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CFD analysis of the flow-field scale-up influence on the electrodes performance in a PEFC
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A computational fluid dynamic (CFD) analysis was used as a useful tool to obtain numerical relationships among similar flow-field designs having different active areas. Assuming that, at fixed current density, the porous layer velocity distribution calculated for the smallest size geometry was the optimal, a scale-up methodology has been proposed and implemented in software. It allows acquisition of the scaled-up flow-field by multiplying the reference cell parameters by suitable factors (scale factors). A calibration methodology has also been proposed by the introduction of a feedback factor evaluated by CFD analysis. A first application of this procedure has been carried out to scale-up a 5-125Â cm2 cell.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 152, 1 December 2005, Pages 67-74
Journal: Journal of Power Sources - Volume 152, 1 December 2005, Pages 67-74
نویسندگان
G. Squadrito, O. Barbera, I. Gatto, G. Giacoppo, F. Urbani, E. Passalacqua,