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- 2018
旋转磁场对质子交换膜燃料电池工作性能的影响
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Abstract:
摘要 外加磁场可以提高PEM（Proton Exchange Membrane，质子交换膜）燃料电池的工作性能，本文通过在PEM燃料电池表面分别附加正方形梯度磁场、同极性组合圆柱形磁场以及异极性组合圆柱形磁场，分析旋转磁场、静态磁场以及未加磁场3种磁场环境下燃料电池的输出功率密度变化. 研究发现，外部磁场的分布规律不同，磁场的变动对燃料电池的影响也不相同，尤其是异极性组合磁场，旋转的磁场使燃料电池的最大功率密度提高了21.27%，明显高于加载静态磁场时提高的11.70%. 旋转磁场产生的效果与磁场旋转速度有关，提高转速有利于增强磁场对燃料电池工作性能的影响，当转速为30 r·min-1时影响最大，随着转速进一步提高，影响效果逐渐变差
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