Proposal for standard compact server model for transient data center simulations

Zachary M. Pardey, Dustin W. Demetriou, Hamza Salih Erden, James W. VanGilder, H. Ezzat Khalifa, Roger R. Schmidt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations

Abstract

Accurate prediction of data center temperatures and airflow following a transient event, such as the loss of cooling or variation in server load, requires that all sources of thermal mass in the data center be modeled with sufficient accuracy. One of the most important and simultaneously difficult-to-model types of thermal mass in the data center is that of the servers that populate the facility. Although compact models of servers for transient applications have recently been proposed and much experimental measurement of servers undertaken, no one model or technique for estimating required server properties has emerged as the de facto standard for computational fluid dynamics (CFD) users and vendors. This paper, a collaborative effort by industry and university researchers active in the subject field, reviews the progress in transient server modeling to date and recommends a single, standard compact server model to be adopted by the data center community. Techniques for determining the transient server properties thermal capacitance and thermal effectiveness from detailed measurements as well as simple correlations with server mass and size are discussed. Example server properties are provided based on measurements from two independent laboratories. Finally, the sensitivity of server exhaust temperature predictions to uncertainties in server properties is discussed.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions
PublisherAmer. Soc. Heating, Ref. Air-Conditoning Eng. Inc.
Pages413-421
Number of pages9
Volume121
ISBN (Print)9781936504961
StatePublished - 2015
Event2015 ASHRAE Winter Conference - Chicago, United States
Duration: Jan 24 2015Jan 28 2015

Other

Other2015 ASHRAE Winter Conference
CountryUnited States
CityChicago
Period1/24/151/28/15

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ASJC Scopus subject areas

  • Mechanical Engineering
  • Building and Construction

Cite this

Pardey, Z. M., Demetriou, D. W., Erden, H. S., VanGilder, J. W., Khalifa, H. E., & Schmidt, R. R. (2015). Proposal for standard compact server model for transient data center simulations. In ASHRAE Transactions (Vol. 121, pp. 413-421). Amer. Soc. Heating, Ref. Air-Conditoning Eng. Inc..