Visualization of Moisture Generation in a Polymer Electrolyte Fuel Cell
Visualization of Moisture Generation in a Polymer Electrolyte Fuel Cell
复制标题
聚合物电解质燃料电池中水分生成的可视化
DOI：
10.3154/jvs.24.supplement1_129
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
E. Ejiri
中科院分区：
文献类型：
--
作者：
K. Hashimoto;H. Tanno;S. Koike;T. Izumi;E. Ejiri
水管理是聚合物电解质燃料电池高效运行的重要因素之一，目前正在积极开发，旨在将其应用于家庭热电联产系统、汽车和移动机械。本文从水管理的角度阐述了电池状态、供气湿度、气体利用率、运行时间对燃料电池发电性能的影响。专门制造了带有明渠隔板和透明端板的测试单电池，以可视化电池阳极和阴极通道中的水分产生和两相流动。结果表明，通道内冷凝水的量随运行条件变化较大，直接关系到电池发电性能的好坏。
Water management is one of the most important factors in efficient operation of a polymer electrolyte fuel cell, which is now actively under development aiming at practical application to home cogeneration systems, automobiles and mobile machines. This paper describes the influence of cell posture, humidity and utilization factor of supplied gases, and duration time of operation on the fuel cell performance of power generation in terms of water management. A test single cell with open channel separators and transparent endplates was specially manufactured to visualize moisture generation and two-phase flow in the anode and cathode channels of the cell. The results show that the amount of condensed water in the channels greatly varies with operating conditions and directly links to the cell performance of power generation.