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《Journal of Chongqing University(Natural Science Edition)》 2006-04
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Numerical Analysis and Optimization of a Small Vehicle Heat Exchanger

SUN Deng-xing,DENG Zhao-xiang,WANG Pan,LUO Hong(State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400030,China)  
This paper analyzes the fluid flow and heat transfer of the heat exchanger,and obtainsd the distribution of fluid field,heat field and pressure field in heat exchanger.According the analysis result,some modify measure is(adopted),such as decreasing the number of tube bundle,the size of baffle plate and increasing the diameter of exchange heat tube.In the new heat exchanger,the resistance decreased 32.3%,is 103.2 Pa and the temperature of the exit is 130 K.The new heat exchanger satisfies the requirement of exchanging heat.The study indicates that adopting the numerical simulation method could get temperature,pressure and fluid-velocity of anywhere of the heat exchanger,and understand effecting of structure parameter on fluid flied and heat flied of the heat exchanger.Therefore,it provides a new method for optimization design of heat exchanger.
【Fund】: 重庆市科技攻关项目(2002-6644)
【CateGory Index】: U463.851
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