基于高速工况的燃料电池汽车发动机舱内结构优化  

Structural Optimization of Fuel Cell Vehicle Engine Compartment Under a High Speed Condition

作　　者：陶琦 汪怡平[1,2] 陈明 邓亚东[1,2] 苏楚奇[1,2] 王硕[1,2] 刘水长[4] TAO Qi;WANG Yiping;CHEN Ming;DENG Yadong;SU Chuqi;WANG Shuo;LIU Shuichang(Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan University of Technology,Wuhan 430070,China;Hubei Research Center for New Energy&Intelligent Connected Vehicle,Wuhan University of Technology,Wuhan 430070,China;Dongfeng Motor Corporation Technical Center,Wuhan 430056,China;College of Mechanical Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]武汉理工大学汽车零部件技术湖北省协同创新中心,湖北武汉430070 [2]武汉理工大学湖北省新能源与智能网联车工程技术研究中心,湖北武汉430070 [3]东风汽车集团有限公司技术中心,湖北武汉430056 [4]湖南工业大学机械工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2021年第4期16-21,共6页Journal of Hunan University of Technology

基　　金：国家重点研发计划基金资助项目(2018YFB0105301);湖南省自然科学基金资助项目(2019JJ60064);湖南省教育厅科研基金资助重点项目(18A270,20A157)。

摘　　要：选取某燃料电池汽车为研究对象,搭建GT-COOL和STAR-CCM+联合仿真平台。使用一维和三维模型联合计算100,120,150 km/h工况下使用体积分数为50%的乙二醇溶液作为冷却介质时发动机舱内的温度特性,并找到主要热害位置,且通过安装导流板的方式来提高主散热器和左右散热器的进气量。计算结果表明,安装导流板有效提高了进气流量,降低了主散热器和左右散热器出口冷却介质的温度,达到了提升散热性能的目的。With a fuel cell vehicle as the research object,a combined simulation platform of GT-COOL and STAR-CCM+has thus been established.One-dimensional and three-dimensional models are combined together to calculate the temperature characteristics in the engine compartment with a volume fraction of 50%ethylene glycol under 100 km/h,120 km/h,150 km/h working conditions respectively.The calculation results show that the installation of the deflector can effectively improve the air flow rate,and reduce the temperature of the cooling medium at the outlet of the main radiator and the left and right radiators,thus achieving the purpose of improving the heat dissipation performance of the radiator.

关 键 词：高速工况 燃料电池汽车 发动机舱 结构优化 散热性能 

分 类 号：U469.722[机械工程—车辆工程]