Improving shipboard electronics cooling system by optimizing the heat sinks configuration  

作　　者：Hamid Maleki Mohammad Reza Safaei Arturo S.Leon Taseer Muhammad Truong Khang Nguyen 

机构地区：[1]Department of Mechanical Engineering,Isfahan University of Technology,Isfahan 84156-83111,Iran [2]Department of Mechanical Engineering,Florida International University,Miami,FL 33174,USA [3]Department of Medical Research,China Medical University Hospital,China Medical University,Taichung,Taiwan [4]Mechanical Engineering Department,Faculty of Engineering,King Abdulaziz University,Jeddah,Saudi Arabia [5]Department of Civil and Environmental Engineering,Florida International University,Miami,FL 33174,USA [6]Department of Mathematics,College of Sciences,King Khalid University,Abha 61413,Saudi Arabia [7]Division of Computational Physics,Institute for Computational Science,Ton Duc Thang University,Ho Chi Minh City,Vietnam [8]Faculty of Electrical and Electronics Engineering,Ton Duc Thang University,Ho Chi Minh City,Vietnam

出　　处：《Journal of Ocean Engineering and Science》2022年第5期498-508,共11页海洋工程与科学（英文）

摘　　要：With the increase of high-power electrical components in modern ships,especially fully electric ships with electric propulsion drive(EPD),the cooling of EPD electrical components has become particularly important.Providing optimal configurations for heat sinks with high thermal efficiency plays an essential role in this regard.A new technique for improving the efficiency of heat sinks is the utilization of perforated fins.This study examined the effects of perforation geometry(shape and size)on laminar airflow flow and heat transfer characteristics over a perforated plate-fin heat sink.Three-dimensional simulations were conducted using the finite-volume scheme based on the SIMPLE algorithm.In this research,the effects of perforation shape and size on various parameters,e.g.,total drag force,average Nusselt number,perforated fin efficiency(PFE),heat transfer performance enhancement(HTPE),and fin optimization factor(η)were evaluated.The results confirmed that at a specific heat transfer surface area for perforated fins,the highest efficiency is achieved by circular perforations.In contrast,the square perforations due to geometric similarity to rectangular fins could reach the maximum size.Consequently,fins with square perforations could achieve the most optimal configuration.Also,results showed that for a constant perforations size,change in perforations shape improves HTPE,PFE,andηby more than 40%,45%,and 110%,respectively.Also,by modifying perforations size for a specified shape,an increment of more than 35%,40%,and 150%is observed in HTPE,PFE,andη,respectively.

关 键 词：Forced convection Laminar flow Perforated fin Plate-fin heat sink Nusselt number 

分 类 号：V51[航空宇航科学与技术—航空宇航推进理论与工程]