柴油机EGR冷却器不同材质散热效果的计算机模拟  

Computer simulation of heat dissipation effect of diesel EGR coolerwith different material

作　　者：梁霄 李云峰 LIANG Xiao;LI Yunfeng(School of Mathematics and Statistics,Hubei University of Arts and Science,Xiangyang,Hubei 441053,China;Cummins Power Technology Co.,Ltd.,Xiangyang,Hubei 441000,China)

机构地区：[1]湖北文理学院数学与统计学院,湖北襄阳441053 [2]康明斯动力技术有限公司,湖北襄阳441000

出　　处：《计算机应用文摘》2024年第15期164-166,169,共4页Chinese Journal of Computer Application

基　　金：湖北文理学院横向科研项目(HX2023030)。

摘　　要：柴油机EGR冷却器的散热模型是描述废气在冷却器中的传热过程的数学模型,对于优化废气再循环系统的效果和改善发动机性能具有重要作用。模型所使用的热传导方程旨在描述物质内部的热传导过程,基于热传导的基本原理,可描述物质的温度分布随时间和空间的变化而改变。柴油机EGR冷却器通常使用耐高温、耐腐蚀的材料,以应对高温废气并满足冷却介质的要求,常用材料包括铝合金、不锈钢、钛、镍基合金和钢材等。文章应用计算机软件模拟了不同材质冷却器的散热效果,对比分析了各种材料的优劣势,为生产企业选择合适的材料提供了依据。The heat dissipation model of diesel engine EGR cooler is a mathematical model describe the heat transfer process of exhaust gas in the cooler,which plays an important role in optimizing the effect of exhaust gas recirculation system and improving engine performance.The heat conduction equation used in the model aims to describe the heat conduction process inside a substance.Based on the basic principles of heat conduction,it can describe the temperature distribution of a substance as it changes over time and space.Diesel engine EGR coolers typically use high-temperature and corrosion-resistant materials to cope with high-temperature exhaust gases and meet the requirements of cooling media.Common materials include aluminum alloys,stainless steel,titanium,nickel based alloys,and steel.This article applies computer software to simulate the heat dissipation effect of different material coolers,compares and analyzes the advantages and disadvantages of various materials,and provides a basis for production enterprises to choose suitable materials.

关 键 词：柴油机 EGR冷却器 热传导方程 冷却介质 

分 类 号：U464[机械工程—车辆工程]