PEMFC蜘蛛网仿生流道电性能及传质分析OA
Analysis of electrical performance and mass transfer of spider-web bionic flow channels in PEMFC
针对气体和温度分布不均导致燃料电池在大电流密度下传质损失过大的问题,提出环形迷宫流道和环形直流道两种蜘蛛网仿生流道结构,采用有限元分析的方法,对比蛇形流道与两种蜘蛛网仿生流道在单体电池条件下的传质特性.环形迷宫流道具有反应气体分布更均匀、除水效果更好、浓差极化损失较小、电流密度更高等优势,相比环形直流道与蛇形流道,峰值电流密度分别增加 9.76%与 41.42%,峰值功率密度分别增加 9.75%与 39.67%.
Aiming at the issue of excessive mass transfer losses in the fuel cell under high current density caused by uneven gas and temperature distribution,two spider-web bionic flow channel structures,annular labyrinth and annular direct current,are proposed.The finite element analysis method is adopted to compare the mass transfer characteristics of the serpentine flow channel with those of the two spider-web bionic flow channels in the cell.The annular labyrinth flow channel has advantages such as more uniform distribution of reaction gases,better water removal effect,smaller concentration polarization loss and higher current density.Compared with the annular direct current flow channel and the serpentine flow channel,the peak current density is increased by 9.76%and 41.42%respectively,the peak power density is increased by 9.75%and 39.67%respectively.
付鑫;杜磊;宋光吉;谢安;钟海长
厦门理工学院机械与汽车工程学院,福建 厦门 361021||福建省客车先进设计与制造重点实验室,福建 厦门 361021厦门理工学院机械与汽车工程学院,福建 厦门 361021||福建省客车先进设计与制造重点实验室,福建 厦门 361021厦门金龙联合汽车工业有限公司工程研究院,福建 厦门 361021厦门理工学院材料科学与工程学院,福建 厦门 361021厦门理工学院材料科学与工程学院,福建 厦门 361021
信息技术与安全科学
质子交换膜燃料电池(PEMFC)蜘蛛网仿生流道有限元分析传质特性电流密度
proton exchange membrane fuel cell(PEMFC)spider-web bionic flow channelfinite element analysismass transfer characteristiccurrent density
《电池》 2026 (2)
323-328,6
中央引导地方科技发展资金项目(2024L3021),厦门市重大科技计划项目(3502Z20241031),厦门市科技计划揭榜挂帅项目(3502Z20241009),厦门理工学院高层次人才引进项目(YKJ22018R)
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