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Research Papers

Airflow Management on the Efficiency Index of a Container Data Center Having Overhead Air Supply

[+] Author and Article Information
Cheng-Hao Wang, Yeng-Yung Tsui

Department of Mechanical Engineering,
National Chiao Tung University,
Hsinchu 300, Taiwan

Chi-Chuan Wang

Department of Mechanical Engineering,
National Chiao Tung University,
Hsinchu 300, Taiwan
e-mail: ccwang@mail.nctu.edu.tw

1Corresponding author.

Contributed by the Electronic and Photonic Packaging Division of ASME for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received July 14, 2017; final manuscript received September 24, 2017; published online October 23, 2017. Assoc. Editor: Baris Dogruoz.

J. Electron. Packag 139(4), 041008 (Oct 23, 2017) (10 pages) Paper No: EP-17-1066; doi: 10.1115/1.4038114 History: Received July 14, 2017; Revised September 24, 2017

Effect of airflow managements on the efficiency index of a small container data center having overhead air supply is reported in this study. Seventeen arrangements and configurations regarding the airflow and blockage arrangements are experimentally examined and compared. Test results indicate an appreciable hot air recirculation occurring for rack arrangement without any blockage, and the hot spot occurs at the second rack alongside the cold aisle. The hot spot had moved to the first rack when the blockage plate is installed on the rack top. Rack locations relative to air handler casts a negligible effect on the efficiency index, and it is comparatively more effective by sealing the trailing of the cold aisle. A smaller cold-aisle spacing helps to lower the temperature distribution, and an additional opening of the supplied vent will not help in removal of hot spot. Shutting off the grille in the center of cold aisle is also unable to fix the hot air recirculation and may even incur hot air reversal. The hot air reversal can be removed by adding additional blockage plate at the flow reversal section. Higher supplied air flow rate also improves the efficiency index considerably.

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References

Shehabi, A. , Smith, S. , Sartor, D. , Brown, R. , Herrlin, M. , Koomey, J. , Masanet, E. , Horner, N. , Azevedo, I. , and Lintner, W. , 2016, “United States Data Center Energy Usage Report,” Lawrence Berkeley National Laboratory, Berkeley, CA, Report No. LBNL-1005775.
ASHRAE Technical Committee, 2011, “Thermal Guidelines for Data Processing Environments-Expanded Data Center Classes and Usage Guidance,” American Society of Heating, Refrigerating and Air-Conditioning Engineers, Atlanta, GA.
Steinbrecher, R. A. , 2011, “ Data Center Environments ASHRAE's Evolving Thermal Guidelines,” ASHRAE J., 53(12), pp. 42–49.
Nada, S. A. , Elfeky, K. E. , and Attia, A. M. A. , 2016, “ Experimental Investigations of Air Conditioning Solutions in High Power Density Data Centers Using a Scaled Physical Model,” Int. J. Refrig., 63, pp. 87–99. [CrossRef]
Fakhim, B. , Nagarathinam, S. , Armfield, S. W. , and Behnia, M. , 2017, “ Thermal Management Issues in Operational Data Centers: Computational Fluid Dynamics Analysis and Experimental Study,” ASME J. Therm. Sci. Eng. Appl., 9(3), p. 031009. [CrossRef]
Arghode, V. K. , Kang, T. , Joshi, Y. , Phelps, W. , and Michaels, M. , 2017, “ Measurement of Air Flow Rate Through Perforated Floor Tiles in a Raised Floor Data Center,” ASME J. Electron. Packag., 139(1), p. 011007. [CrossRef]
Rambo, J. , and Joshi, Y. , 2006, “ Convective Transport Processes in Data Centers,” Numer. Heat Transfer, Part A: Appl., 49(10), pp. 923–945. [CrossRef]
Wang, I. N. , Tsui, Y.-Y. , and Wang, C.-C. , 2015, “ Improvements of Airflow Distribution in a Container Data Center,” Energy Procedia, 75, pp. 1819–1824. [CrossRef]
Schmidt, R. R. , and Iyengar, M. , 2007, “ Comparison Between Underfloor Supply and Overhead Supply Ventilation Designs for Data Center High-Density Clusters,” ASHRAE Trans., 113(1), pp. 115–125.
Alkharabsheh, S. , Fernandes, J. , Gebrehiwot, B. , Agonafer, D. , Ghose, K. , Ortega, A. , Joshi, Y. , and Sammakia, B. , 2015, “ A Brief Overview of Recent Developments in Thermal Management in Data Centers,” ASME J. Electron. Packag., 137(4), p. 040801. [CrossRef]
Kumar, P. , Sundaralingam, V. , and Joshi, Y. , 2011, “ Effect of Server Load Variation on Rack Air Flow Distribution in a Raised Floor Data Center,” 27th Annual IEEE Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), San Jose, CA, Mar. 20–24, pp. 90–96.
Kumar, P. , Sundaralingam, V. , Joshi, Y. , Patterson, M. K. , Steinbrecher, R. , and Mena, M. , 2011, “Effect of Supply Air Temperature on Rack Cooling in a High Density Raised Floor Data Center Facility,” ASME Paper No. IMECE2011-65574.
Shrivastava, S. , Sammakia, B. , Schmidt, R. , and Iyengar, M. , 2005, “Comparative Analysis of Different Data Center Airflow Management Configurations,” ASME Paper No. IPACK2005-73234.
VanGilder, J. W. , and Schmidt, R. , 2005, “Airflow Uniformity Through Perforated Tiles in a Raised-Floor Data Center,” ASME Paper No. IPACK2005-73375.
Cho, J. , Lim, T. , and Kim, B. S. , 2009, “ Measurements and Predictions of the Air Distribution Systems in High Compute Density (Internet) Data Centers,” Energy Build., 41(10), pp. 1107–1115. [CrossRef]
Durand-Estebe, B. , Le Bot, C. , Mancos, J. N. , and Arquis, E. , 2013, “ Data Center Optimization Using PID Regulation in CFD Simulations,” Energy Build., 66, pp. 154–164. [CrossRef]
Arghode, V. K. , and Joshi, Y. , 2016, “ Modified Body Force Model for Air Flow Through Perforated Floor Tiles in Data Centers,” ASME J. Electron. Packag., 138(3), p. 031002. [CrossRef]
Wang, C.-H. , Tsui, Y.-Y. , and Wang, C.-C. , 2017, “ On Cold-Aisle Containment of a Container Datacenter,” Appl. Therm. Eng., 112, pp. 133–142. [CrossRef]
Herrlin, M. K. , 2005, “ Rack Cooling Effectiveness in Data Centers and Telecom central Offices: The Rack Cooling Index (RCI),” ASHRAE Trans., 111(2), pp. 725–731.
Sharma, R. K. , Bash, C. E. , and Patel, C. D. , 2002, “ Dimensionless Parameters for Evaluation of Thermal Design and Performance of Large-Scale Data Centers,” AIAA Paper No. 2002-3091.
Sharma, R. , and Bash, C. , 2002, “ Dimensionless Parameters for Energy-Efficient Data Center Design,” IMAPS Advanced Technology Workshop on Thermal Management (THERM ATW), Palo Alto, CA, June 19–21.
Patankar, S. V. , 2010, “ Airflow and Cooling in a Data Center,” ASME J. Heat Transfer, 132(7), p. 073001. [CrossRef]
Joshi, Y. , and Kumar, P. , 2012, Energy Efficient Thermal Management of Data Centers, Springer-Verlag, New York, pp. 39–94. [CrossRef]
Schmidt, R. , and Cruz, E. , 2003, “ Cluster High-Powered Racks Within a Raised-Floor Computer Data Center: Effect of Perforated Tile Flow Distribution on Rack Inlet Air Temperatures,” ASME J. Electron. Packag., 126(4), pp. 510–518. [CrossRef]
Ni, J. , Jin, B. , Zhang, B. , and Wang, X. , 2017, “ Simulation of Thermal Distribution and Airflow for Efficient Energy Consumption in a Small Data Centers,” Sustainability, 9(4), p. 664. [CrossRef]

Figures

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Fig. 1

Schematic of the experimental setup and detailed dimensions of the test simulation data center and the heaters contained in the data rack: (a) schematic of data center system and chilling utility layout, (b) top view of the container data center, (c) side view of the container data center, and (d) photo for the data rack with equally divided heater in five parts

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Fig. 2

Measured temperature contour plot for cases 1–17: (a) case 1, (b) case 2, (c) case 3, (d) case 4, (e) case 5, (f) case 6, (g) case 7, (h) case 8, (i) case 9, (j) case 10, (k) case 11, (l) case 12, (m) case 13, (n) case 14, (o) case 15, (p) case 16, and (q) case 17

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Fig. 3

Measured RCI and SHI for cases 1 and 2

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Fig. 4

Measured RCI and SHI for cases 2–4

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Fig. 5

Measured RCI and SHI for cases 5, 6, 3, 7, and 8

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Fig. 6

Measured RCI and SHI for cases 3, 9, 10, and 11

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Fig. 7

Measured RCI and SHI for cases 11–14

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Fig. 8

Measured RCI and SHI for cases 15, 3, 16, and 17

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