Convenient two-dimensional model for design of fuel channels for proton exchange membrane fuel cells
Date Issued
2003
Date
2003
Author(s)
Chen, Falin
Wen, Ying-Zhi
Chu, Hsin-Sen
Yan, Wei-Mon
Soong, Chyi-Yeou
DOI
20060927121658476105
Abstract
A theoretical, two-dimensional, along-the-channel model has been developed to design fuel channels for proton exchange membrane
(PEM) fuel cells. This has been implemented by solving the resultant ordinary differential equation with a straightforward shooting
computational scheme. With such a design tool, an analysis can be made of the effects due to some operation and design parameters,
such as inlet velocity, inlet pressure, catalyst activity, height of channel, and porosity of gas-diffusion layer to obtain a fuel cell with high
performance. Present results indicate that there is always a trade-off between higher power density and higher efficiency of the fuel cell.
Namely, a design for higher power density (a better performance) is always accompanied with a higher fuel efficiency (or a larger fuel
consumption rate and a higher fuel cost), and vice versa. When some relevant physical parameters are determined experimentally and
applied in the present model, a quantitative design for a fuel cell of high efficiency or performance is feasible.
uncorrected proof. journal of power sources xxx (2003) xxx–xxx. 3. convenient two-dimensional model for design of fuel channels. 4. for proton exchange membrane fuel cells. 5. falin chen. a.?. . ying-zhi wen. a. . hsin-sen chu
Subjects
Fuel channels
Proton exchange membrane fuel cells
Gas-diffusion layer
Publisher
臺北市:國立臺灣大學應用力學研究所
Type
thesis
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