储能科学与技术2024，Vol.13Issue(2)：483-491,9.DOI:10.19799/j.cnki.2095-4239.2023.0554
堆叠式车载超级电容器热管理方式分析
Simulation of air-and liquid-cooled thermal management of stacked automotive supercapacitors
摘要
Abstract
Finite element models were created for stacked automotive supercapacitors using COMSOL Multiphysics 6.0,and thermal models were developed for two different thermal management methods,air-and liquid-cooled,to compare their effects on thermal management.First,the correlations between the maximum temperature of air-and liquid-cooled supercapacitors and the initial temperature of the heat exchange medium,inlet flow rate,and heat generation power of the supercapacitor modules were investigated within the same parameter variation range.The results show that the higher initial temperature of the heat transfer medium and greater heating power of the supercapacitor lead to higher maximum temperatures of the supercapacitor.Conversely,a faster average flow rate of the heat exchange medium at the inlet results in lower maximum temperatures of the supercapacitor.A critical flow rate of 1.5 m/s exists,beyond which the correlation between flow rate and maximum temperature weakens greatly.Second,based on the parametric study results,the heat transfer processes of these two thermal management methods were analyzed in-depth by setting the same operating parameters.This analysis explains opposite heat gradient direction in the height dimension between air-and liquid-cooled methods.The comparison of thermal management effects of the two methodsincludes factors such as maximum temperature,temperature difference,temperature distribution,and heat exchange time.The results show that liquid-cooled supercapacitors exhibit lower maximum temperatures,smaller temperature differences,more uniform temperature distribution,and much less heat exchange time compared to air-cooled supercapacitors and have better thermal management effects.关键词
堆叠式超级电容器/热管理/热模型/空冷/液冷/热流耦合Key words
stacked supercapacitor/thermal management/thermal model/air cooling/liquid cooling/heat flow coupling分类
信息技术与安全科学引用本文复制引用
唐盼春,严嵘,张灿,孙泽..堆叠式车载超级电容器热管理方式分析[J].储能科学与技术,2024,13(2):483-491,9.基金项目
国家车用超级电容器系统工程技术研究中心开放课题:"车用高能量超级电容单体/模块电-热耦合计算模型开发"(2021NUSV002)、"车用高能量超级电容标准箱/系统热-流耦合计算模型开发"(2022NUSV001),上海市"科技创新行动计划"科技支撑碳达峰碳中和专项项目"适用于智能网联充电机器人的超级电容器关键技术研究"(21DZ1208501). （2021NUSV002）
