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Comparison of Hard Floor and Raised Floor Cooling of Servers with Regards to Local Effects
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-7355-5950
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-8235-9639
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-1033-0244
2018 (English)In: Proceedings IECON 2018: 44th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2018, p. 4887-4892Conference paper, Published paper (Refereed)
Abstract [en]

In this paper hard floor and raised floor cooling of servers are numerically compared. Both time-averaged and transient distributions of velocity and temperature fields are investigated with the use of computational fluid dynamics. The geometry and boundary conditions are based on Module 2 of the RISE SICS North facility located in Lulea, Sweden. Results show that for hard floor configurations, it is important to ensure that the hot air does not enter the server inlets on the return to the cooler unit. For raised floor configurations, the interplay between inlet air velocity and server fan speed should instead be considered. Flow fields further indicate that flow direction control of the outlet air in hard floor configurations and inlet air in raised floor configurations can be applied to improve the energy efficiency of the server room. Regarding transient effects, the hard floor configuration show overall larger velocity oscillations while corresponding temperature variations are comparatively small.

Place, publisher, year, edition, pages
IEEE, 2018. p. 4887-4892
Series
Annual Conference of Industrial Electronics Society, ISSN 1553-572X, E-ISSN 2577-1647
Keywords [en]
CFD, Modeling, Server room, Raised floor, Hard floor
National Category
Fluid Mechanics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-73013DOI: 10.1109/IECON.2018.8592885ISI: 000505811104129Scopus ID: 2-s2.0-85061534694OAI: oai:DiVA.org:ltu-73013DiVA, id: diva2:1291834
Conference
44th Annual Conference of the IEEE Industrial Electronics Society (IECON 2018) 21-23 October, 2018, Washington D.C., USA
Note

ISBN för värdpublikation: 978-1-5090-6684-1, 978-1-5090-6685-8

Available from: 2019-02-26 Created: 2019-02-26 Last updated: 2025-02-09Bibliographically approved

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Wibron, EmelieLjung, Anna-LenaLundström, T. Staffan

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