Thermal Environment Analysis and Improvement on Isolated Cold Aisle Data Centers

doi:10.1115/1.4045746

GIEC OpenIR

	Thermal Environment Analysis and Improvement on Isolated Cold Aisle Data Centers
	Su, Lin 1,2,3; Huang, Zhilin 1,2,3,4; Dong, Kaijun1,2,3
	2020-08-01
发表期刊	JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
ISSN	1948-5085
卷号	12 期号:4 页码:9
通讯作者	Dong, Kaijun(sulin@ms.giec.ac.cn)
摘要	Isolated cold aisle airflow distribution is a transitional form from non-isolated airflow distribution to closed cold aisle airflow distribution. With the increase of the power of racks, cooling failure may happen in the layout of the isolated cold aisle. This paper presents the study on cooling performance of the racks which are improved through bottom ventilating reform and adjustment. Inlet/outlet air temperature and mass flow rate of the racks are investigated in detail under conditions of various bottom ventilated areas and various porosities of the raised floor. The characteristics of airflow distribution are contrastively analyzed through calculating indexes of the thermal environment of data centers. Results show that adequate ventilation through the bottom of the racks is good for improvement of the state of airflow distribution. There is an optimization range (0.1-0.3 m and 0.05-0.15 m, respectively) of the ventilated area at the bottom of the racks. And high porosity (above 50%) of the ventilated area can reduce the inlet and outlet temperatures of the racks and the racks in different positions have a better temperature uniformity. In conclusion, bottom ventilation of racks is a feasible plan to improve airflow distribution, and schemes of ventilated area and porosity of corresponding raised floor should be designed respectively under consideration of the layout of racks and AC.
关键词	data center thermal environment numerical simulation isolated cold aisle airflow distribution energy efficiency heat transfer enhancement thermal systems
DOI	10.1115/1.4045746
关键词[WOS]	AIR-DISTRIBUTION SYSTEMS ; FLOW ; PERFORMANCE ; MANAGEMENTS
收录类别	SCI
语种	英语
资助项目	Science and Technology Planning Project of Guangzhou, China[201902010031] ; International Cooperation Project of Guangzhou Development District[2018GH05]
WOS研究方向	Thermodynamics ; Engineering
项目资助者	Science and Technology Planning Project of Guangzhou, China ; International Cooperation Project of Guangzhou Development District
WOS类目	Thermodynamics ; Engineering, Mechanical
WOS记录号	WOS:000549858300027
出版者	ASME
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/27497
专题	中国科学院广州能源研究所
通讯作者	Dong, Kaijun
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Su, Lin,Huang, Zhilin,Dong, Kaijun. Thermal Environment Analysis and Improvement on Isolated Cold Aisle Data Centers[J]. JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS,2020,12(4):9.
APA	Su, Lin,Huang, Zhilin,&Dong, Kaijun.(2020).Thermal Environment Analysis and Improvement on Isolated Cold Aisle Data Centers.JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS,12(4),9.
MLA	Su, Lin,et al."Thermal Environment Analysis and Improvement on Isolated Cold Aisle Data Centers".JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS 12.4(2020):9.