A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre

N. Srinarayana; B. Fakhim; M. Behnia; S. W. Armfield

doi:10.1109/ITHERM.2012.6231412

A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre

N. Srinarayana^*, B. Fakhim, M. Behnia, S. W. Armfield

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

6 Citations (Scopus)

Abstract

The thermal performance of an air-cooled data centre with raised-floor and hard-floor configurations are compared with respect to the room and ceiling return strategies. The supply heat index, rack cooling index and number of racks that exceed the maximum recommended and allowable rack inlet air temperature according to ASHRAE's thermal guidelines, are used to evaluate the thermal performance. Numerical simulations are conducted to obtain thermal and velocity fields. Results show that using a ceiling return strategy for the return of hot exhaust air to the CRACs gives a better thermal performance of the data centre, for both raised and hard-floor strategy as against the room return. The paper also addresses an important limitation of the supply heat index performance metric.

Original language	English
Title of host publication	Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	43-50
Number of pages	8
ISBN (Print)	9781424495320
DOIs	https://doi.org/10.1109/ITHERM.2012.6231412
Publication status	Published - 2012
Externally published	Yes
Event	13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012 - San Diego, CA, United States Duration: 30 May 2012 → 1 Jun 2012

Other

Other	13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Country/Territory	United States
City	San Diego, CA
Period	30/05/12 → 1/06/12

Keywords

Data centre
hard-floor
racks
raised-floor

Access to Document

10.1109/ITHERM.2012.6231412

Cite this

Srinarayana, N., Fakhim, B., Behnia, M., & Armfield, S. W. (2012). A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre. In Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012 (pp. 43-50). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ITHERM.2012.6231412

Srinarayana, N. ; Fakhim, B. ; Behnia, M. ; Armfield, S. W. / A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre. Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2012. pp. 43-50

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title = "A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre",

abstract = "The thermal performance of an air-cooled data centre with raised-floor and hard-floor configurations are compared with respect to the room and ceiling return strategies. The supply heat index, rack cooling index and number of racks that exceed the maximum recommended and allowable rack inlet air temperature according to ASHRAE's thermal guidelines, are used to evaluate the thermal performance. Numerical simulations are conducted to obtain thermal and velocity fields. Results show that using a ceiling return strategy for the return of hot exhaust air to the CRACs gives a better thermal performance of the data centre, for both raised and hard-floor strategy as against the room return. The paper also addresses an important limitation of the supply heat index performance metric.",

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Srinarayana, N, Fakhim, B, Behnia, M & Armfield, SW 2012, A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre. in Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 43-50, 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012, San Diego, CA, United States, 30/05/12. https://doi.org/10.1109/ITHERM.2012.6231412

A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre. / Srinarayana, N.; Fakhim, B.; Behnia, M.; Armfield, S. W.

Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012. Piscataway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2012. p. 43-50.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AB - The thermal performance of an air-cooled data centre with raised-floor and hard-floor configurations are compared with respect to the room and ceiling return strategies. The supply heat index, rack cooling index and number of racks that exceed the maximum recommended and allowable rack inlet air temperature according to ASHRAE's thermal guidelines, are used to evaluate the thermal performance. Numerical simulations are conducted to obtain thermal and velocity fields. Results show that using a ceiling return strategy for the return of hot exhaust air to the CRACs gives a better thermal performance of the data centre, for both raised and hard-floor strategy as against the room return. The paper also addresses an important limitation of the supply heat index performance metric.

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Srinarayana N, Fakhim B, Behnia M, Armfield SW. A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre. In Proceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2012. p. 43-50 https://doi.org/10.1109/ITHERM.2012.6231412

A comparative study of raised-floor and hard-floor configurations in an air-cooled data centre

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