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首页> 外文期刊>International journal of green energy >A two-dimensional analytical model of PEMFC with dead-ended anode
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A two-dimensional analytical model of PEMFC with dead-ended anode

机译：具有末端阳极的PEMFC的二维分析模型

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摘要

When the proton exchange membrane fuel cell (PEMFC) works in the mode of dead-ended anode (DA), the water and the nitrogen in the cathode flow channel will diffuse, and accumulate, to the anode flow channel resulting in fuel starvation on the anode side as well as the performance degradation of PEMFC, which has an important impact on the durability and working state of PEMFC. Because the PEMFC performance is closely related to the cathode working parameters, in order to study the influence of the cathode working parameters on the performance of the PEMFC with DA, a two-dimensional analytical model of PEMFC with DA is established in this article, and the parameters in the model are corrected by experiments. The effects of humidity, stoichiometric ratio and working pressure of cathode gas on the performance of PEMFC with DA are studied by model and experiment, as well as the effects of these working parameters on the accumulation process and distribution of water vapor and nitrogen on the anode side, and the relative performance of PEMFC with DA under different cathode working parameters is obtained. This model is of great significance to guide the practical work of the PEMFC with DA.
机译：当质子交换膜燃料电池（PEMFC）以末端阳极（DA）的方式工作时，阴极流道中的水和氮将扩散并积聚到阳极流道中，从而导致燃料短缺。阳极侧以及PEMFC的性能下降，这对PEMFC的耐久性和工作状态有重要影响。由于PEMFC的性能与阴极工作参数密切相关，为了研究阴极工作参数对带有DA的PEMFC性能的影响，本文建立了带有DA的PEMFC的二维分析模型，并通过实验对模型中的参数进行校正。通过模型和实验研究了湿度，化学计量比和阴极气体工作压力对带DA的PEMFC性能的影响，以及这些工作参数对阳极上水蒸气和氮的积累过程和分布的影响。在不同的阴极工作参数下，PEMFC与DA的相对性能得以获得。该模型对指导具有DA的PEMFC的实际工作具有重要意义。

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