کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5476033 | 1521423 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Local resolved investigation of hydrogen crossover in polymer electrolyte fuel cell
ترجمه فارسی عنوان
تجزیه و تحلیل محلی حلقه هیدروژن در سلول سوختی الکترولیت پلیمر حل شده است
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
In this study, the effects of temperature, pressure and relative humidity (RH) on hydrogen crossover rate from anode to cathode of a PEMFC is investigated. Segmented cells are used to measure the local hydrogen crossover current density (jH2cross) distribution. The results present approximate linear increase of the hydrogen crossover rate with increasing temperature and hydrogen back pressure with rates of 0.038Â mAÂ cmâ2Â Kâ1 and 3.33Â mAÂ cmâ2Â barâ1, respectively. Generally, slightly increased H2 crossover is observed in gas inlet areas than cell average. Unlike the approximate linear relationship between temperature or pressure with hydrogen crossover, the effect of relative humidification on hydrogen crossover is more complex with different increasing rate before fully humidification and dramatic decline at excessive humidification. It is demonstrated that segmented cells can be advantageously applied to study local H2 crossover of intact MEAs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 128, 1 June 2017, Pages 357-365
Journal: Energy - Volume 128, 1 June 2017, Pages 357-365
نویسندگان
Jing Shan, Pawel Gazdzicki, Rui Lin, Mathias Schulze, K. Andreas Friedrich,