浸没式交换机液冷技术仿真与实验  

Experiment and Numerical Simulation of Immersion Liquid-cooled Switch

作　　者：冯帅[1] 王国岩 何嘉俊 张可牧 安青松[1] Feng Shuai;Wang Guoyan;He Jiajun;Zhang Kemu;An Qingsong(Key Laboratory of Efficient Utilization of Low and Medium Grade Energy,Ministry of Education,Tianjin University,Tianjin,300350,China;Goertek,Weifang,261031,China)

机构地区：[1]天津大学中低温热能高效利用教育部重点实验室,天津300350 [2]歌尔声学,潍坊261031

出　　处：《制冷学报》2021年第3期135-144,共10页Journal of Refrigeration

摘　　要：交换机作为通讯传输技术的核心设备,内部芯片产生的热流密度越来越高,提高其散热效率是数据中心稳定运行的前提。本文对应用于交换机散热的新型浸没式液冷技术进行仿真与实验研究,通过高功率交换机的液冷散热仿真、浸没式液冷的散热效率实验对应用效果进行了分析和评估。结果表明:基于元件模型散热仿真分析的模型修正方法提高了温度预测的准确性,浸没式液冷条件下交换机的元件温度比相同功率风冷条件下的温度约低20℃,浸没式液冷环境下单位体积的交换机极限功率约是风冷条件下极限功率的3.2倍。As the core equipment of communication and transmission technology,switches develop rapidly,and the heat flux emitted by internal chips increases constantly.Improving heat dissipation efficiency is a prerequisite for the reliable operation of data centers.This study focuses on the simulation and experiments of immersion liquid cooling technology.The effects of this technology were analyzed and evaluated through a liquid cooling simulation of high-power switches and heat dissipation efficiency experiments of immersion liquid cooling.The results show that the model correction method based on the heat dissipation simulation analysis of components improves the accuracy of temperature prediction.The component temperature of the switch in the immersion liquid cooling condition can be reduced by approximately 20℃compared with the air-cooling environment under the same power.The power limit of the unit volume of the switch under immersion liquid cooling is approximately 3.2 times of that under air cooling environment.

关 键 词：浸没式液冷技术 热仿真 交换机 散热效率 极限功率 

分 类 号：TB611[一般工业技术—制冷工程] TP391.9[自动化与计算机技术—计算机应用技术]