کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
244649 501956 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Increasing the efficiency of a portable PEM fuel cell by altering the cathode channel geometry: A numerical and experimental study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Increasing the efficiency of a portable PEM fuel cell by altering the cathode channel geometry: A numerical and experimental study
چکیده انگلیسی

Portable fuel cells are receiving great attention today mainly because their energy density is higher than any portable battery solution. Among other types, portable polymer electrolyte membrane (PEM) fuel cells are an established technology where research on increasing their efficiency is leading product development and manufacturing. The objective of this work was to study and evaluate the redesign of a commercial portable fuel cell, improving its efficiency. A three-dimensional model of the original PEM fuel cell with parallel plus a transversal flow channel design was developed using Comsol Multiphysics, including the effects of liquid water formation and electric current production. Using this model, the effects of different channel geometries and respective cathode flow rates on the cell’s performance, including the local transport characteristics, were studied. Laboratory tests with various fuel cell stacks using the new channels structure were effectuated for an evaluation of the fuel cell’s performance, showing improvements in its efficiency of up to 26.4%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 87, Issue 4, April 2010, Pages 1400–1409
نویسندگان
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