摘要
质子交换膜燃料电池(proton exchange membrane fuel cell, PEMFC)阳极工作模式主要包括开口模式、闭口模式和再循环模式.阳极工作模式不同,阳极排放方式也存在差异.对PEMFC在不同阳极工作模式下的排放研究进行总结.结果表明:阳极开口模式中尾氢直接从出口排出,造成了严重的氢气浪费,而通过采用bleeding模式和阳极级联等操作方式能有效提高燃料利用率;阳极闭口模式结构简单,燃料利用率高,但“水淹”和氮积聚影响电池的性能和耐久性,可通过优化阳极排放方式来加以改善;阳极再循环模式兼具高性能和高效率等优点,再循环模式包括基于机械循环泵或电化学氢泵的主动再循环方式和基于引射器的被动再循环方式,其阳极排放方式以定期吹扫排放为主.
The anode operation mode of proton exchange membrane fuel cell(PEMFC)mainly includes open-end mode,dead-end mode and recirculation mode.Different working anode modes lead to different ways of hydrogen emission from anode outlet.The emission study of PEMFC under different anode operation modes was summarized.The results show that in the anode open-end mode,the tail hydrogen is directly discharged from the outlet,resulting in serious waste of hydrogen.The hydrogen efficiency can be improved by blending and anode cascade operation mode.The dead-end anode PEMFC has the advantages of simple structure and high hydrogen efficiency.However,″water flooding″and nitrogen accumulation seriously affect the performance and durability of PEMFC.The disadvantage can be improved by optimizing anode emission strategy.The anode recirculation mode has the advantages of both high performance and high efficiency.The recirculation mode includes active recirculation based on mechanical recirculation pump or electrochemical hydrogen pump and passive recirculation based on ejector,and the anode discharge mode is mainly based on periodic blowing discharge.
作者
陈奔
刘阳
CHEN Ben;LIU Yang(School of Automotive Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China)
出处
《江苏大学学报（自然科学版）》
CAS
北大核心
2023年第3期283-292,共10页
Journal of Jiangsu University：Natural Science Edition
基金
国家自然科学基金资助项目(51706162)。
关键词
质子交换膜燃料电池
阳极排放
开口模式
闭口模式
再循环模式
proton exchange membrane fuel cell
anode emission
open-end mode
dead-end mode
recirculation mode
