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Technical Brief

Effects of Servers' Rack Location and Power Loading Configurations on the Thermal Management of Data Center Racks' Array

[+] Author and Article Information
S. A. Nada

Department of Mechanical Engineering,
Benha Faculty of Engineering,
Benha University,
Benha 13511, Egypt
e-mail: samehnadar@yahoo.com

K. E. Elfeky

Department of Mechanical Engineering,
Benha Faculty of Engineering,
Benha University,
Benha 13511, Egypt

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received November 7, 2015; final manuscript received December 20, 2016; published online April 19, 2017. Assoc. Editor: Gamal Refaie-Ahmed.

J. Thermal Sci. Eng. Appl 9(4), 044501 (Apr 19, 2017) (4 pages) Paper No: TSEA-15-1320; doi: 10.1115/1.4036009 History: Received November 07, 2015; Revised December 20, 2016

Effects of server/rack locations and server loading configurations on the thermal performance of data center racks' array are experimentally investigated using a scaled physical model simulating real data. Front and rear rack temperatures profiles, server temperatures, and performance indices supply/return heat index (SHI/RHI) are used to evaluate the thermal management of the racks' array. The results showed that (i) servers located in high level rack cabinet have the worst thermal performance, (ii) middle racks of the rack row showed optimum thermal performance and energy efficiency, and (iii) locating the servers of high power densities in the middle of the racks row improves the thermal performance and energy efficiency of the racks array.

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Figures

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Fig. 1

Schematic diagram of the experimental setup

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Fig. 2

Effect of racks location on temperature profiles and SHI: (a) temperature profile at front and rear of the three racks, (b) server temperatures, and (c) SHI

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Fig. 3

Temperature profile at racks' front and rear for different power loadings: (a) case A, (b) case B, and (c) case C

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Fig. 4

Variation of SHI for different power loading configurations

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