کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9760373 1498047 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of higher operating pressure on the net change in voltage of a proton exchange membrane fuel cell under various operating conditions
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of higher operating pressure on the net change in voltage of a proton exchange membrane fuel cell under various operating conditions
چکیده انگلیسی
The performance improvement of a proton exchange membrane fuel cell due to increased operating pressure must be balanced against the energy required to pressurize the reactant gases. This paper quantifies and assesses the effect of higher operating pressure on the net change in cell voltage at various operating temperatures, air stoichiometries, relative humidities, and humidity ratios. The analysis is performed to determine the power lost due to air compression at various operating current densities. The calculated results at high-pressure ratios demonstrate the significance of a higher operating temperature and a lower air stoichiometry on the net change in the cell voltage. Furthermore, better results are achieved at a humidity ratio of 0.10 than at 0.05 in terms of net change in the cell voltage, relative humidity, and stoichiometric ratio.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 143, Issues 1–2, 27 April 2005, Pages 9-16
نویسندگان
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