An investigation on topologies of hybrid manifold,impinging-jet nozzle and micro-pin-fin heat sinks  

作　　者：SHI QianLei YAO XiaoLe LIU Qian QIN Le JU Xing XU Chao 

机构地区：[1]Key Laboratory of Power Station Energy Transfer Conversion and System of MOE,North China Electric Power University,Beijing 102206,China

出　　处：《Science China(Technological Sciences)》2024年第4期1061-1076,共16页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51876062);the Interdisciplinary Innovation Program of North China Electric Power University。

摘　　要：The hybrid manifold micro-pin-fin(MMPF)heat sink combined nozzle jets is an option for large-scale integrated circuits(LSI).The demond for uniform and ultra-high heat flux removal by MMPF heat sink has not been adequately investigated.This work aims to solve the problem of fluid organization.The proposed basic tiling topologies,including square,regular hexagon,30°rhombus,and 60°rhombus topologies,provide different organized fluid flows and heat transfer patterns.The present study focuses on comparing these topologies according to independent porous medium parameters,such as nozzle pore size D_(Z),flow pore size D_(X,Y),and porosityε.The results show that the square topology achieves the smallest total thermal resistance R_(tot)value of0.0975×10^(-4)K m^2/W,while the hexagon topology achieved the highest value of COP/?T,which was 2033.9 K^(-1).According to the sensitivity analysis results,the optimal total thermal resistance can be obtained by balancing the influences of nozzle pore size,flow pore size,and porosity.The optimal pressure drop can be obtained by maximizing the porosity.

关 键 词：heat sink ultra-high heat flux MANIFOLD micro-pin-fin impinging-jet topology 

分 类 号：TK172[动力工程及工程热物理—热能工程]