化工进展2024，Vol.43Issue(4)：1754-1763,10.DOI:10.16085/j.issn.1000-6613.2023-0714
基于平板热管的高温质子交换膜燃料电池堆启动特性
Start-up characteristics of high-temperature proton exchange membrane fuel cell stacks based on flat heat pipes
摘要
Abstract
High-temperature proton exchange membrane fuel cells(HT-PEMFC)operate at about 160℃ and have the advantages of better electrochemical reaction kinetics,simpler hydrothermal management and higher CO tolerance than conventional low-temperature cells.However,upon the increase of operating temperature,the fast start-up of HT-PEMFC becomes one of the important challenges that restrict its application promotion.In current work,a preheat start-up method using a flat plate heat pipe(FHP)for a HT-PEMFC reactor with a rated power of 500W was attempted.An experimental system was designed and built to evaluate this method in terms of preheating time,temperature distribution,and heat transfer distribution.The experimental results showed that increasing the heating power significantly reduced the preheating time from 3000s at 500W to 980s at 1500W,However,it also caused a deterioration of the temperature uniformity,with a maximum temperature difference of about 28 ℃ in the vertical direction at 500W increased to 80℃ at 1500W.In addition,the temperature difference in the horizontal direction increased with the heating power,especially in the area close to the heat source,up to 15.7℃,which would undoubtedly accelerate the mechanical failure of the proton exchange membrane.In practice,a higher heating power should be selected to reduce the start-up time but not affecting the cell operating life too much.关键词
燃料电池/传热/氢/测量/热管理/平板热管Key words
fuel cells/heat transfer/hydrogen/measurement/thermal management/flat heat pipe分类
能源科技引用本文复制引用
钱志广,王世学,朱禹,岳利可..基于平板热管的高温质子交换膜燃料电池堆启动特性[J].化工进展,2024,43(4):1754-1763,10.基金项目
国家重点研发计划(2021YFB3800400). （2021YFB3800400）
