DocumentCode :
1497919
Title :
A methodology for the design of perforated tiles in raised floor data centers using computational flow analysis
Author :
Kang, S. ; Schmidt, R.R. ; Kelkar, K.M. ; Radmehr, A. ; Patankar, S.V.
Author_Institution :
Aavid Thermalloy, Concord, NH, USA
Volume :
24
Issue :
2
fYear :
2001
fDate :
6/1/2001 12:00:00 AM
Firstpage :
177
Lastpage :
183
Abstract :
An important aspect of the design of data centers involves sizing of the perforated floor tiles for return of cold air, the size of the space under the raised floor, and placement of the DP equipment and modular chillers. The flow through individual perforated tiles needs to fulfil the cooling requirements of the computer equipment placed adjacent to them. The novelty of this paper lies in the treatment of the volume under the raised floor as a uniformly pressurized plenum. The accuracy of the Pressurized Plenum model is demonstrated with reference to a computational fluid dynamics (CFD) analysis of the recirculating flow under the raised floor and the limits of its validity are also identified. The simple model of the volume under the raised floor enables use of the technique of flow network modeling (FNM) for the prediction of the distribution of flow rates exiting from the various tiles. An inverse design method is proposed for one-step design of the perforated tiles and flow balancing plates for individual chillers. Subsequent use of the FNM technique enables assessment of the performance of the actual system. Further, required design changes to an existing system can also be evaluated using the FNM analysis in a simple, quick, and accurate manner. The resulting design approach is very simple and efficient, and is well suited for the design of modern data centers.
Keywords :
computational fluid dynamics; computer centres; cooling; ventilation; DP equipment; air cooling; computational fluid dynamics; computer equipment; data center; flow network model; inverse design method; modular chiller; perforated tiles; pressurized plenum model; raised floor; ventilation system; Air conditioning; Computational fluid dynamics; Data flow computing; Data processing; Design methodology; Predictive models; Space cooling; Space technology; Thermomechanical processes;
fLanguage :
English
Journal_Title :
Components and Packaging Technologies, IEEE Transactions on
Publisher :
ieee
ISSN :
1521-3331
Type :
jour
DOI :
10.1109/6144.926380
Filename :
926380
Link To Document :
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