气体加湿度对质子交换膜燃料电池起动电流的影响实验研究

来源 :第十五届全国氢能会议暨第7届两岸三地氢能研讨会 | 被引量 : 0次 | 上传用户:ryanme
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质子交换膜燃料电池在实际应用中不可避免会经历起动、加减速和停机等动态工况.其中在起动过程中,气体加湿度不仅影响电池输出,还影响电池寿命.目前有关加湿度对电池起动的影响研究较少,尤其是耦合了温度,负载等操作工况加湿度对起动电流的实验研究很少.本文研究了不同温度,负载,气体流量和起动初始条件下气体加湿度对起动电流的影响,并采用电流分布测量垫片测量了相应工况条件下局部起动电流,探讨了起动时电池内部的传质机理,为优化电池起动参数提供一定的实验参考.
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