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中文摘要：
利用一个三维蛇形流场燃料电池模型，分析了反应气体的不同化学计量比对质子交换膜燃料电池超调的影响。结果表明：在反应气体的相对湿度较高，化学计量比大于1时，电流密度的超调主要受氧气浓度的影响；在氢气化学计量比小于等于1时，电流密度的超调主要受氢气浓度的影响。
英文摘要：
Using a serpentine flow-field model, the influences of stoichiometry on the overshoot behavior of PEMFC were analyzed in this paper. The results showed that the overshoot behavior of current density was mainly caused by oxygen concentration when stoichiometry was more than 1 and the relative humidity of reactant gases was bigger. However, it was mainly caused by hydrogen concentration when the stoichiometry of hydrogen was not more than 1.
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