Staff Members - Benha University
Experimental investigations of thermal managements solutions in data centers buildings for different arrangements of cold aisles containments. Journal of Building Engineering 5 (2016) 41–49
Journal of Building Engineering • 2016
Publication Information
Authors
S.A. Nada, K.E.Elfeky
Keywords
Not Available
Journal
Journal of Building Engineering
Publisher
Elsevier
Volume
5
Issue
Not Available
Pages
41-49
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
Cold aislescontainmentsareusedindatacentersbuildingstoimprovethethermalmanagementsoftheIT
servers.Inthepresentstudy,anexperimentalinvestigationofair flow andthermalmanagementofdata
center buildingsisconductedfordifferentarrangements of coldaislescontainments.Ascaledphysicalmodel
simulating realdatacentersisdesignedusingscalemodelingtheoryandconstructedforthesakeofthe
presentexperimentalwork.Thedatacenterscaledmodelaccommodatearowofthreeracks;eachrack
included fourserversfortestingpurposes.Threearrangementsofcoldaislesaretested:(i)freeopencoldaisle,
(ii)semi-enclosedcoldaisleswheretheaislesareenclosedfromthesides,and(iii)fullenclosedcoldaisles,
wheretheaislesareenclosedfromsidesandtop.Frontandrearrackstemperaturesprofile, serverstem-
peraturesandperformancemeasuringparametersSupply/ReturnHeatIndex(SHI/RHI)areusedtoevaluate
the thermalmanagement/performanceofthedatacentersracks.Experimentswereconductedatdifferent
rackspowerdensities.Theresultsshowedthat(i)increasingdatacenterspowerdensityandsuppliedair flow
ratesimprovesSHIbutincreasesserverstemperature,(ii)usingsemi-enclosedcoldaislesrelativelyimprove
the thermalperformanceofthedatacenters,(iii)using fullenclosedcoldaislesdramaticallyimprovethe
thermal performanceofthedatacenterservers,and(vi)thepercentageofenhancementindatacenters
performance duetousingcoldaislecontainmentsdramaticallyincreaseswithincreasingthepowerdensity.
servers.Inthepresentstudy,anexperimentalinvestigationofair flow andthermalmanagementofdata
center buildingsisconductedfordifferentarrangements of coldaislescontainments.Ascaledphysicalmodel
simulating realdatacentersisdesignedusingscalemodelingtheoryandconstructedforthesakeofthe
presentexperimentalwork.Thedatacenterscaledmodelaccommodatearowofthreeracks;eachrack
included fourserversfortestingpurposes.Threearrangementsofcoldaislesaretested:(i)freeopencoldaisle,
(ii)semi-enclosedcoldaisleswheretheaislesareenclosedfromthesides,and(iii)fullenclosedcoldaisles,
wheretheaislesareenclosedfromsidesandtop.Frontandrearrackstemperaturesprofile, serverstem-
peraturesandperformancemeasuringparametersSupply/ReturnHeatIndex(SHI/RHI)areusedtoevaluate
the thermalmanagement/performanceofthedatacentersracks.Experimentswereconductedatdifferent
rackspowerdensities.Theresultsshowedthat(i)increasingdatacenterspowerdensityandsuppliedair flow
ratesimprovesSHIbutincreasesserverstemperature,(ii)usingsemi-enclosedcoldaislesrelativelyimprove
the thermalperformanceofthedatacenters,(iii)using fullenclosedcoldaislesdramaticallyimprovethe
thermal performanceofthedatacenterservers,and(vi)thepercentageofenhancementindatacenters
performance duetousingcoldaislecontainmentsdramaticallyincreaseswithincreasingthepowerdensity.