کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5146987 1497374 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen purge and reactant feeding strategies in self-humidified PEM fuel cell systems
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Hydrogen purge and reactant feeding strategies in self-humidified PEM fuel cell systems
چکیده انگلیسی
A 6 kW proton exchange membrane fuel cell system, operating in self-humidified conditions, was characterized in two anode operative modes: dead-end and flow through with exhaust recirculation. The anode sub-system was specifically designed in order to adjust the level of recycled anodic stream. The role of anode purge frequency, anode recirculation level and air stoichiometric ratio was analysed in the power range 1-5 kW. The aim of this study was to define management strategies to assure efficient and reliable cell performance during steady-state, warm-up and load variation phases. The results evidenced the combined effect of hydrogen purge, air flow rate impulse, and recycled anodic stream on individual cell performance recovery when unstable working conditions were detected during system start-up and load variations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 3, 19 January 2017, Pages 1758-1765
نویسندگان
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