质子交换膜燃料电池高效主动喷雾增湿器的设计
Design of the Efficient Active Spray Humidifier for Proton Exchange Membrane Fuel Cells
摘要
Abstract
The gas humidity of proton exchange membrane fuel cells(PEMFC)has a significant impact on their performance and service life.To control the gas humidity,structural optimization was carried out as follows:first,two generations of uniform-flow atomization chambers were designed.The first generation achieved reverse dispersion of liquid droplets,and the second generation introduced a three-layer uniform-flow plate and four-zonechannels.After computational fluid dynamics(CFD)optimization,the flow error of the four-flow channels was reduced from 4.24％ to 1.16％,and the pressure drop was reduced from 8.7 to 5 kPa.Secondly,a two-stage heat exchange architecture was introduced.The primary heat exchanger uses the outlet stack water temperature to preheat the liquid droplets,and the secondary heat exchanger controls the temperature of the humidified air by adjusting the inlet stack water temperature,which can avoid residual liquid water.The dew point at the outlet of the second-stage heat exchanger matches the theoretical value with an error ≤±1℃,covering typical working conditions of fuel cells.Combining the second-generation atomization chamber with the two-stage heat exchange architecture,the measured dew point can reach 54.34℃ and the measured humidity can reach 63.76 RH％,meeting the high humidity requirements of the stack.This integration of countercurrent spraying,uniform-flow structure,and two-stage heat exchange technology breaks through the limitations of passive humidification and slow response of traditional membrane tube humidifiers,providing a solution for dynamic humidity management in fuel cell systems.关键词
质子交换膜燃料电池/喷雾增湿器/雾化腔设计/二级换热/湿度调控Key words
Proton exchange membrane fuel cell/Spray humidifier/Atomization chamber design/Secondary heat exchange/Humidity regulation分类
化学化工引用本文复制引用
李阳,赵兴旺,丁芳,王显,葛君杰,方川..质子交换膜燃料电池高效主动喷雾增湿器的设计[J].应用化学,2025,42(7):982-992,中插4,12.基金项目
国家重点研发计划(No.2023YFB4005901)、北京市高层次创新创业人才支持计划科技新星计划(No.20240484717)、河北省高层次人才团队建设专项(No.235A4401D)、中央引导地方科技发展资金项目(No.246Z4402G)、河北省科技研发平台专项(No.24465201D)和成都师范学院高层次人才引进项目(No.111-111191301)资助 Supported by the National Key Research and Development Program of China(No.2023YFB4005901),the Beijing High-level Innovation and Entrepreneurship Talent Support Program for Science and Technology New Stars(No.20240484717),the Special Project for the Construction of High-level Talent Teams in Hebei Province(No.235A4401D),the Central Guidance for Local Science and Technology Development Funds Project(No.246Z4402G),the Special Project for Science and Technology R&D Platforms in Hebei Province(No.24465201D)and the Project for the Introduction of High-level Talents at Chengdu Normal University(No.111-111191301) （No.2023YFB4005901）
