کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8073942 1521445 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of temperature on transport phenomena in phosphoric acid doped polybenzimidazole polymer electrolyte membrane fuel cell
ترجمه فارسی عنوان
اثرات دما بر روی پدیده حمل و نقل در سلول سوختی پلیمر الکترولیت پلی اتیلن پلی اتیلن پلی اتیلن اسید فسفریک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
An energy analysis for the H3PO4 (phosphoric acid) doped PBI (polybenzimidazole) polymer electrolyte membrane fuel cell depending on the operating temperature is aimed in this study. In line with this aim, the relation of heat sources from electrochemical reaction, ionic and electronic current with the cell operating temperature is analyzed in detail for both anode catalyst layer and cathode catalyst layer. In addition, effect of the cell operating temperature on species and charge in the fuel cell is indicated. For this analysis, a single phase and two dimensional numerical model is developed with the help of COMSOL Multiphysics 4.2a software under the conditions of the different cell operating temperatures (from 120 to 180 °C stepping by 20 °C) and a constant acid doping level (6.75 RPU H3PO4/PBI). The results bring out that the irreversible and reversible entropic heat sources are more dominant than the joule heating source and the heat source by conduction at the cathode catalyst layer. The molar concentrations of all species through all layers are also presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 103, 15 May 2016, Pages 772-783
نویسندگان
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