高性能计算机多支路并联表贴自循环蒸发冷却系统运行特性分析  

Analysis on the Operation Characteristics of Multi-branch Parallel Surface Mounted Self-circulation Evaporative Cooling System for High Performance Computer

作　　者：阮琳[1,2] 曹瑞 闫静[1] RUAN Lin;CAO Rui;YAN Jing(Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《工程热物理学报》2021年第8期2040-2047,共8页Journal of Engineering Thermophysics

基　　金：中国科学院前沿科学重点研究项目(No.QYZDY-SSW-JSC026)。

摘　　要：表贴式自循环蒸发冷却技术在高性能计算机上应用不仅具有散热优势,其节能优势更为突出。针对单机柜,表贴自循环蒸发冷却系统则是由水平方向和垂直方向均存在位置差异的计算节点冷却单元共用一个冷凝器构成全并联系统。为了研究全并联系统的运行特性并掌握其预测方法,本文首先建立了一个单机柜3层24个计算节点的全并联系统管路拓扑;其次,针对该拓扑,基于阻力平衡原理建立了支路阻力平衡矩阵方程,并计算得到了支路流量特性;继而建立全并联系统的模型实验台并开展了实验研究;通过理论计算和实验的结果的对比,验证了计算的相对准确性;该方法可以作为单机柜全并联系统运行特性的预测方法,以期对单机柜最大并联支路数和单台冷凝器下最大并联机柜数进行预期,为该技术未来在数据中心规模化应用提供了设计指导。The application of surface-mounted self-circulation evaporative cooling system in high performance computer(HPC)have advantages of both high heat dissipation capability and energy saving.For a single HPC cabinet,a fully parallel system is composed of many cooling units of the blade computing nodes with different positions in the horizontal and vertical directions which share the same condenser.In order to study the operation characteristics of the full parallel system and master the method of predicting the operation characteristics of the system,a pipeline topology of the full parallel system with three layers of single cabinet and 24 simulating computing nodes is established;Secondly,based on the resistance balance principle,the branch resistance balance matrix equation is established,and the branch flow characteristics are calculated;Then,the model experimental platform of the full parallel system is established and the experimental research is carried out;The accuracy of the calculation is verified by comparing the theoretical calculation with the experimental results to some extent.This method can be used to predict the operation characteristics of single cabinet fully parallel system,and it can be used to predict the maximum number of parallel branches of single cabinet and the maximum number of parallel cabinets under single condenser in the future,which provides design guidance for the future large-scale application of the technology in the data center.

关 键 词：表贴式 蒸发冷却 多支路并联系统 流量特性 节能 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]