CFD Investigation of Airflow Management in a Small Container Data Center

Wen Xiao Chu, Chi-Chuan Wang*

*Corresponding author for this work

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

In this paper, the cooling performance of a small container data center is numerically investigated. It is indicated that adjusting the plenum depth and placing baffles in the plenum can improve the airflow uniformity efficiently. On the other hand, the perforated tiles with low porosity of 25% also can significantly improve the air flowrate distribution by 88.9% with the severe pumping power penalty of 2.79 times. Hence, the layout of perforated tiles with nonuniform porosities is optimized with the fixed average porosity of 50%, which can obtain almost absolutely uniform flowrate distribution in the cold aisle. In addition, the cold aisle containment (CAC) strategy is implemented, resulting in the improved rack cooling index (RCI) and supply heat index (SHI) to approach to 100% and 0%, respectively. However, the intake flowrates still suffer from nonuniformity due to the bypass effect, thus a novel criterion named flowrate uniformity index (FUI) is proposed. Besides, the drawer-type layouts with the shifting distance ( delta ) varying from 0 to 200 mm are investigated, and the case with delta = 150 mm shows the best improvement in terms of the standard deviation of FUI (sigma {mathrm {FUI}}). Moreover, the sigma {mathrm {FUI}} of the case with a three-layer drawer-type layout can be further improved by 45.8%.

原文English
文章編號8712563
頁(從 - 到)2177-2188
頁數12
期刊IEEE Transactions on Components, Packaging and Manufacturing Technology
9
發行號11
DOIs
出版狀態Published - 十一月 2019

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