Full Content is available to subscribers

Subscribe/Learn More  >

Guidelines on Managing Under Floor Blockages for Improved Data Center Performance

[+] Author Affiliations
Siddharth Bhopte, Bahgat Sammakia

State University of New York at Binghamton

Madhusudan K. Iyengar, Roger Schmidt

IBM Corporation

Paper No. IMECE2006-13711, pp. 83-91; 9 pages
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 3
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4786-1 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME


Due to the increase in computer rack equipment power in recent years, thermal management of data centers has become a challenging problem. Data center facilities with raised floor plenums are the most popular configuration from a thermal management perspective. Considerable ongoing research efforts focus on optimizing the room layouts and equipment design in order to achieve the desired cooling. However, the detrimental impact of under floor blockages, which occur widely, is seldom addressed. These blockages often take the form of chiller pipes, cabling, and wires. They impede the flow of cold air from the air conditioning units and yield unpredictable air flow patterns. This results in highly maldistributed tile flow rates which can create additional hot spots above the raised floors. In this paper the effect of such under floor blockages on data center performance is characterized in detail. A representative data center is modeled using commercial CFD code, with typical under floor blockages. Blockages are shown to have a significant impact on tile flow rates and rack inlet temperatures. A detailed parametric study is presented, to identify the locations under the floor, where blockages if installed, have minimal effect on data center performance. Case studies are presented to show that blockages, if installed with prior consideration, have a positive effect on overall data center performance. Finally guidelines are presented on how to rearrange existing blockages or to install new blockages, and still achieve an improvement in thermal performance, without any change to the room layout or cold air supply.

Copyright © 2006 by ASME
Topics: Data centers



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In