电工技术学报2018，Vol.33Issue(11)：2626-2635,10.DOI:10.19595/j.cnki.1000-6753.tces.170517
质子交换膜燃料电池低温启动水热管理
特性及优化
Optimization of Water and Thermal Management in Proton Exchange
Membrane Fuel Cell during Low Temperature Startup
罗悦齐 1张嵩 1高丽萍 1俞剑峰1
作者信息
- 1. 上海汽车集团前瞻技术研究部 上海 201804
- 折叠
摘要
Abstract
Proton exchange membrane fuel cell (PEMFC) is one of the most promising energy devices in automotive applications. Its superiorities include zero-emission, high efficiency, low noise, low vibration and low operation temperature. Low temperature startup is defined as the startup process from a relatively low temperature to normal operation temperature. This process is critical for the performance of PEMFC in application. In this study, the water and thermal management during low temperature startup process (from 10℃ to 80℃) of a PEMFC stack was studied based on the one-dimensional modeling. It is found that the non-uniformity of temperature distributions tends to increase with time during startup. The initial voltage drop is caused by the strong electro-osmotic drag effect, which results in drying of the anode and increase of the stack resistance. Anode catalytic reaction assisted startup is favored for not only to enhance the temperature increasing rate but also to hydrate the anode catalyst layer thus benefiting the water and thermal managements simultaneously. However, cathode catalytic reaction potentially causes cathode flooding, which is unfavorable for water management in low temperature startup in PEMFC stack.关键词
质子交换膜燃料电池堆/低温启动/一维模型/辅助启动Key words
Proton exchange membrane fuel cell stack/low temperature startup/one-dimensional model/assisted startup分类
能源科技引用本文复制引用
罗悦齐,张嵩,高丽萍,俞剑峰..质子交换膜燃料电池低温启动水热管理
特性及优化[J].电工技术学报,2018,33(11):2626-2635,10.
