Numerical Modeling of a Single Channel Polymer Electrolyte Fuel Cell
Numerical Modeling of a Single Channel Polymer Electrolyte Fuel Cell
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单通道聚合物电解质燃料电池的数值模拟
DOI：
10.1115/1.2756557
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发表时间：
2007
影响因子：
--
通讯作者：
N. Brandon
中科院分区：
文献类型：
--
作者：
N. Vasileiadis;D. Brett;V. Vesovic;A. Kucernak;E. Fontes;N. Brandon
建立了单通道聚合物燃料电池的二维模型。为了实现模型验证，电流映射实验进行了各种通道宽度的单通道聚合物电解质燃料电池（PEFC）的阴极侧，在不同的反应物流速和在一个范围内的操作电池电压。燃料侧以交叉流模式操作，具有高化学计量过量的氢气，以确保阳极性能不受沿着通道位置的限制。溶液域包括七个区域（两个入口通道、两个扩散器、两个活性催化剂层和一个膜），并考虑阳极中的氢气和水蒸气以及阴极中的氧气、氮气和水蒸气的传输。使用FEMLAB®（一种基于MATLAB®的软件）对所得的耦合微分方程组进行数值求解。该模型已从单通道PEFC的数据进行了比较，并获得了良好的协议之间的实验和理论。
A two-dimensional model of a single-channel polymer fuel cell has been developed. To achieve model validation, current mapping experiments were performed on the cathode side of a single-channel polymer electrolyte fuel cell (PEFC) of various channel widths, at different reactant flow rates and over a range of operating cell voltages. The fuel side was operated in cross-flow mode, with a high stoichiometric excess of hydrogen to ensure no limitations in anode performance as a function of position along the channel. The solution domain comprises seven regions, (two inlet channels, two diffusers, two active catalyst layers, and a membrane) and considers transport of hydrogen and water vapor in the anode and oxygen and nitrogen and water vapor in the cathode. The resulting set of coupled differential equations was solved numerically with FEMLAB®, a MATLAB®-based software. The model has been compared to data from a single-channel PEFC, and good agreement between experiment and theory was obtained.