کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10568204 | 973398 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Three-dimensional analysis for effect of channel configuration on the performance of a small air-breathing proton exchange membrane fuel cell (PEMFC)
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Three-dimensional analysis for effect of channel configuration on the performance of a small air-breathing proton exchange membrane fuel cell (PEMFC) Three-dimensional analysis for effect of channel configuration on the performance of a small air-breathing proton exchange membrane fuel cell (PEMFC)](/preview/png/10568204.png)
چکیده انگلیسی
A coupled 3D mathematical model for the real geometry of an air-breathing proton exchange membrane (PEMFC) was developed and validated by experimental data. The free convection in the cathode side was included in the model. The concentration over-potential was considered as a function of mass transfer coefficient of oxygen in the catalyst layer. Governing equations possess the features that fluid dynamics, mass/heat transfer are coupled with the electrochemical reactions. The model was solved in a commercial software STAR-CD based on the finite-difference and finite-volume methods, and the electrochemical features and water transport in membrane are solved simultaneously through a user-specific subroutine. To investigate the effect of channel configuration on air-breathing fuel cell performance, calculations for three different widths of channels have been executed. Results show the best performance can be obtained in the cell with cathode channel width of 3Â mm (open ratio of 75.9%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 145, Issue 2, 18 August 2005, Pages 572-581
Journal: Journal of Power Sources - Volume 145, Issue 2, 18 August 2005, Pages 572-581
نویسندگان
Wang Ying, Tae-Hyun Yang, Won-Yong Lee, J. Ke, Chang-Soo Kim,