新型应急降温系统对数据机房热环境影响模拟研究

作者：武志松钟桦郑文科魏川铖田梦姜益强

单位：哈尔滨工业大学寒地城乡人居环境科学与技术工业和信息化部重点实验室中国核电工程有限公司山东省建筑设计研究院有限公司

摘要：提出了一种以液氮作为冷却工质的新型应急降温系统，并采用数值模拟的方法研究了该系统对数据机房热环境的影响。研究结果表明，若数据机房没有设置备用冷源，常规空调失效387 s后机柜内部温度将达到最高限值55℃,600 s时室内温度将达到最高限值40℃。而当事故工况持续360 s时开启该应急降温系统，室内温度最高为33.8℃,机柜内部温度最高为54.1℃。随后室内温度场及气流分布逐渐均匀，因此该时间点为冷却系统最优开启时间点。

关键词：数据中心数据机房应急降温系统液氮备用冷源热环境数值模拟

作者简介：武志松，男，1997年生，在读硕士研究生;*姜益强（通信作者）150090黑龙江省哈尔滨市南岗区黄河路73号哈尔滨工业大学寒地楼401房间，E-mail:jyq7245@163.com;

尊敬的用户，本篇文章需要2元，点击支付交费后阅读

限时优惠福利：领取VIP会员
全年期刊、VIP视频免费!

参考文献[1] KHALAJ A H,HALGAMUGE S K.A review on efficient thermal management of air and liquid-cooled data centers:from chip to the cooling system[J].Applied energy,2017,205:1165- 1188.

[2] CHEUNG H,WANG S W.Reliability and availability assessment and enhancement of water-cooled multi-chiller cooling systems for data centers[J].Reliability engineering and system safety,2019,191:106573.

[3] 吴晓晖.某超级运算中心空调系统设计[J].暖通空调，2014,44(3):66- 69.

[4] 韩武松，郑坤，徐俊杰，等.上海某数据中心空调系统设计[J].暖通空调，2016,46(8):74- 78.

[5] 孙国林，夏春华，王培，等.张北某数据中心空调系统设计[J].暖通空调，2019,49(4):92- 95,127.

[6] 王韬.哈南数据中心空调系统设计[J].制冷与空调(四川),2018,32(6):613- 615.

[7] 戎振宇.某数据中心项目通风空调系统设计[J].暖通空调，2011,41(12):25- 27.

[8] 王大晓，陈奕欣.数据中心机房制冷系统应急措施的研究[J].暖通空调，2016,46(10):33- 37.

[9] 吴斌.数据中心空调系统故障检测与诊断研究[D].上海：上海交通大学，2018:37- 57.

[10] 王明秋.深冷翅片管气化器表面流场数值模拟与结霜实验研究[D].兰州：兰州理工大学，2017:35- 48.

Numerical investigation on effect of a novel emergency cooling system on thermal environment of data rooms

Wu Zhisong Zhong Hua Zheng Wenke Wei Chuancheng Tian Meng Jiang Yiqiang

(Harbin Institute of Technology Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology, Ministry of Industry and Information Technology China Nuclear Power Engineering Co., Ltd. Shandong Architectural Design and Research Institute Co., Ltd.)

Abstract: This study proposes a novel emergency cooling system in which the liquid nitrogen is used as the heat exchange medium. The impact of the system on the thermal environment of data rooms is analysed by numerical simulation. Results show that if no backup cold source is settled, the inner temperature of the cabin would peak at 55 ℃, which is the allowed upper limit, in 387 s after the cooling system failed, meanwhile, the room air temperature would reach the upper limitation of 40 ℃ in 600 s. On the contrary, if the emergency cooling system is turned on at 360 s after the failure of the conventional air conditioning system, the maximum indoor temperature and internal temperature of cabin are 33.8 ℃ and 54.1 ℃, respectively. After that, both the indoor temperature and velocity fields are gradually uniformly distributed, thus it is the optimal turn-on time of the emergency cooling system.

Keywords: data center; data room; emergency cooling system; liquid nitrogen; backup cold source; thermal environment; numerical simulation;

800 0 0