摘要
质子交换膜燃料电池(PEMFC)在运行时会产生大量的热量,合适的温度分布对电池的安全运行很重要。为对PEMFC内部温度进行实时监测,采用可原位监测PEMFC电堆温度的光纤布拉格光栅(FBG)传感器搭建温度监测平台,测量不同工况下的内部温度。随着工作电流密度的提高,PEMFC内部温度、温差和温度均匀性指数(IUT)均升高。将阴极过量系数从2.0提高到2.5,电堆内温差和IUT分别下降40.38%和28.10%,电压提高0.14 V,温度分布得到改善。
Proton exchange membrane fuel cell(PEMFC)generated a lot of heat during operation,proper temperature distribution was very important to the safe operation of cells.In order to monitor the internal temperature of PEMFC in real time,a temperature monitoring platform was built by using the fiber Bragg grating(FBG)sensor which could monitor the temperature of PEMFC in-situ,the internal temperature was measured under different operating conditions.With the increasing of working current density,the internal temperature,temperature difference and index of uniform temperature(IUT)of PEMFC increased.When the cathode excess factor was increased from 2.0 to 2.5,the temperature difference and IUT in the stack were reduced by 40.38%and 28.10%,respectively,the voltage was increased by 0.14 V.The temperature distribution was improved.
作者
冯政恒
陈涛
王泽英
陈金奇
FENG Zheng-heng;CHEN Tao;WANG Ze-ying;CHEN Jin-qi(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China)
出处
《电池》
CAS
北大核心
2022年第4期362-366,共5页
Battery Bimonthly
基金
国家自然科学基金(51975445)。
作者简介
冯政恒(1997-),男,山东人,武汉理工大学机电工程学院硕士生,研究方向:PEMFC;通信作者:陈涛(1962-),男,湖北人,武汉理工大学机电工程学院教授,研究方向:PEMFC;王泽英(1997-),男,安徽人,武汉理工大学机电工程学院硕士生,研究方向:PEMFC;陈金奇(1995-),男,湖北人,武汉理工大学机电工程学院硕士生,研究方向:PEMFC。
