Study on Influence of Electron Beam Surfi-Sculpt on Cooling Performance of Liquid-Cooling Cold Plate
ZHAO Tong1 , FU Pengfei1 , TANG Zhenyun1 , WANG tao2 , ZHANG Hebin3
(1. Science and Technology on Power Beam Processes Laboratory, AVIC Manufacturing Technology Institute, Beijing 100024, China; 2. The 14th Research Institute of China Electronic Technology Corporation, Nanjing 210013, China; 3. AVIC Composite Corporation Ltd., Beijing 101300, China)
Abstract：In order to obtain the law of the influence of the electron beam surfi-sculpt on heat dissipation performance of liquid-cooling cold plate, the numerical simulation of liquid-cooling cold plate with cylindrical surfi-sculpt was carried out. The results shows that the cooling performance of the cold plate can be effectively improved when the cylindrical surfi-sculpt is in channel of the cold plate. The height of surfi-sculpt has the greatest influence on the heat dissipation performance of cold plate, and the flow direction spacing has the second influence. The influence of the diameter is the least. When the diameter of the cylindrical surfi-sculpt is 1mm, the height is 6mm and the flow direction spacing of the adjacent surfi-sculpts is 4mm, the temperature difference between the cooling liquid and the simulated heating chip is 46.08 ℃, and the heat dissipation performance of the cold plate can be improved by 23.23% compared with the blank sample. According to the simulation results, the liquidcooling cold plate samples with different surfi-sculpt were prepared. The test results of the heat dissipation performance shows that the heat dissipation performance of the cold plate can be improved by more than 13% when the cylindrical surfi-sculpt is made in the channel. However, when the height of cylindrical surfi-sculpt is less than 4mm and the quantity of surfi-sculpts is a few, the effect of changing the characteristics of surfi-sculpt on improving the heat dissipation performance of cold plate is small.