Constructal design progress for eight types of heat sinks

查看全文 作　　者：CHEN [1,2]LinGen;YANG [3]AiBo;FENG [1,2]HuiJun;GE [1,2]YanLin;XIA [1,2]ShaoJun

机构地区：[1]Institute of Thermal Science and Power Engineering,Wuhan Institute of Technology,Wuhan 430205,China;[2]School of Mechanical&Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,China;[3]The 91404 Unit of PLA,Qinhuangdao 066001,China

出　　处：《Science China(Technological Sciences)》索引2020年第63卷第6期,共33页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51779262,51506220 and 51579244)。 摘　　要：This review paper summarizes constructal design progress performed by the authors for eight types of heat sinks with ten performance indexes being taken as the optimization objectives,respectively,by combining the methods of theoretical analysis and numerical calculation.The eight types of heat sinks are uniform height rectangular fin heat sink,non-uniform height rectangular fin heat sink,inline cylindrical pin-fin heat sink(ICPHS),plate single-row pin fin heat sink(PSRPHS),plate inline pin fin heat sink(PIPHS),plate staggered pin fin heat sink(PSPHS),single-layered microchannel heat sink(SLMCHS)with rectangular cross sections and double-layered microchannel heat sink(DLMCHS)with rectangular cross sections,respectively.And the ten performance indexes are heat transfer rate maximization,maximum thermal resistance minimization,minimization of equivalent thermal resistance which is defined based on the entransy dissipation rate(equivalent thermal resistance for short),field synergy number maximization,entropy generation rate minimization,operation cost minimization,thermo-economic function value minimization,pressure drop minimization,enhanced heat transfer factor maximization and efficiency evaluation criterion number maximization,respectively.The optimal constructs of the eight types of heat sinks with different constraints and based on the different optimization objectives are compared with each other.The results indicated that the optimal constructs mostly are different based on different optimization objectives under the same boundary condition.The optimization objective should be suitable chosen based on the focus when the constructal design for one heat sink is performed.The results obtained herein have some important theoretical significances and application values,and can provide scientific bases and theoretical guidelines for the thermal design of real heat sinks and their applications. 关键词：constructal theory entropy generation minimization principle field synergy principle extremum principle of entransy dissipation generalized thermodynamic optimization multi-objective optimization of heat sinks

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Constructal design progress for eight types of heat sinks

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