Data Centre Cooling Strategies The Changing Landscape.

Data Centre Cooling StrategiesThe Changing Landscape.Mark DeguaraDirector Data Centre Solutions ANZe-mail: Mark.Deguara@emerson.com

Redefining ‘Huge’2State of the Data Centre , Emerson Network Power

Failure is Not An Option3State of the Data Centre , Emerson Network Power

Powerful Forces Are Driving Changein Data Centre InfrastructureExternal forceschanging thebusiness climateVirtualization/CloudData Centre &ServerConsolidationData ss andtechnology forcespressing on the datacentre4HigherdensityMorewith LessAlways TechnologiesIT ExertingGreater Influencethan FacilitiesEfficiency &Green InitiativesData Centers are Using Less Power and Cooling4

Today’s Data Centre Cost reductionHigher availability,SLA onsistencyResponsivenessLeverage existingtools and timizationCheaperCompliance andgovernanceAccuracyStrongerNeed: a real-time, resilient data centre that makes the future of your businesspossible, with; the agility and flexibility to meet customer demands, adapt to rapid changes, operate at high efficiency and comply with requirements for risk management and protection55

Today’s Data Centre Cost reductionHigher availability,SLA onsistencyResponsivenessLeverage existingtools and timizationCheaperCompliance andgovernanceAccuracyStrongerNeed: a real-time, resilient data centre that makes the future of your businesspossible, with; the agility and flexibility to meet customer demands, adapt to rapid changes, operate at high efficiency and comply with requirements for risk management and protection66

Advances in Data Center Cooling overthe Last Five Years Wider ASHRAE allowable range Hot and Cold Aisle Containment Outside Air Economization EC/Variable Speed Fans Variable Capacity Compressors Row based cooling Intelligent cooling controls77

Thermal Management Technology to SolveCustomer NeedsEfficiency / nsControl/Intelligence8Availability8

Thermal Management Technology to SolveCustomer NeedsEfficiency / EconomisationHigher Return Air & Chilled Water Temps,Variable Capacity, Aisle Control, MaxEconomisation Hours, New TechnologyEfficientCapital/Modular/SpeedSolutions that will allow effective growthand use of Capital in Optimized BuildingBlocks, Lowest Max ered / Optimized, Ease ofConnectivity, Custom – StandardConfigurationsFrom the Unit, Aisle to the Whole DataCentre – Visibility and ControlSystems & Controls to Measure, Monitoring& Service to maintain the highestAvailability9

Energy Efficiency, Lower Operating Costs Technologies andapproaches to reduceoperationalexpenditures (OPEX) Focus on operationalefficiency of datacenter environment Simple assessmentshelp identify energyconsumptionOpportunity:Reduce Cooling to under15% or PUE 1.20Energy consumption in atypical data center10Source: Energy Logic10

The Data Centre WorldASHRAE* defines differentworking ranges for temperatureand humidity based uponinstallation and technology.This graph shows ASHRAEtypical representation of predefined working envelopes.1111ASHRAE* – American Society of Heating, Refrigerating & Air Conditioning Engineers

The Data Centre WorldTypical Application:Legacy DC with ReturnControl and High Precisionon HumidityHardware:All ServersTemperature & Humidity:20 C – 25 C40% – 55% RH1212

The Data Centre WorldTypical Application:Legacy DC with ReturnControl and High Precisionon HumidityHardware:All ServersTemperature & Humidity:20 C – 25 C40% – 55% RH1313Typical Application:Current DC with Return orSupply Control andHumidity ControlHardware:All ServersTemperature & Humidity:18 C – 27 C5.5DP – 60% RH&15DP

The Data Centre WorldTypical Application:Legacy DC with ReturnControl and High Precisionon HumidityHardware:All ServersTemperature & Humidity:20 C – 25 C40% – 55% RHTypical Application:Data Centre with focus onEnergy Savings and enlargedlimits on HumidityHardware:Enterprise servers, storageproducts1414Temperature & Humidity:15 C – 32 C20% – 80% RHTypical Application:Current DC with Return orSupply Control andHumidity ControlHardware:All ServersTemperature & Humidity:18 C – 27 C5.5DP – 60% RH&15DPTypical Application:Information and TechnologySpace or OfficeHardware:Volume servers, storageproducts, pc, workstationsTemperature & Humidity:10 C – 35 C20% – 80% RH

Chilled WaterEvaporative CoolingTechnologyDirect ExpansionWarehouse Type15Data CentreCoolingBuildingTypeFreecooling Chillerwith ADIAMulti-story Building

16AIR to AIRADIABATICCHILLEDWATERDIRECTEXPANSIONHow to Achieve Data Centre ThermalManagement: 3 Main Cooling TechnologiesConfigurationIndoor units with compressors connected to an outdoorcondenserCooling MediumRefrigerantFreecooling: pumped refrigerant, indirect with water orfresh airTypical ApplicationFrom 10kW to 500-700kW data centreConfigurationIndoor units with heat exchange, EC Fan, valves andcontrols connected to a Freecooling Chiller through largewater pipesCooling MediumWater produced from a Freecooling chillerFreecooling: From the outdoor unit / fresh air coolingTypical ApplicationMedium and large data centre from 0.1 to 5MW moduleConfigurationOutdoor unit connected in the perimeter of the buildingand recirculating the air from and to the data centreCooling MediumFresh air vaporized waterBackup: either direct expansion or Chilled waterTypical ApplicationWarehouse type data centre from 0.5MW upwards

Direct Expansion w/Pumped Economiser First ever Pumped Refrigerant Economizermode with operation down to a 1.05 pPUE Reliable and Low Maintenance Operation– No Water usage or treatment– No Outside Air or damper maintenance– Instant automatic economizer changeover iCOM control manages the system Larger building blocks 80 to 150 kW forsites up to 3 MWCanberra1790% in Full EconomizationNo Compressor Operation17

How Higher Return Air Helps Economisation24º CReturn30º CReturn35º CReturn40º CReturnAt 70% load and 30 C RAT,full economization isavailable at 10 C outdoor-15-10-505101521273238Deg COutdoor AmbientAnnual free-cooling hours increase at higher return air conditions and lower unit loadsPercentage of Annual Hours in Economisation Mode (@80% load)Location1830 C Return Air35 C Return AirSydney16%54%Melbourne47%80%Canberra61%90%18

Climate Impact on EconomisationMelbourneSydneyPerthBrisbane1919

Economisation needs Intelligent ControlsLiebert EconoPhasePumpSpeedEconoPhaseUnit StatusRefrigerantTemperaturePumpHead–Maximizes free-coolinghours through automaticeconomizer transitioncontrolLiebert MC Condenser–Minimizes powerconsumption by optimizingcomponent operation forlowest total system power–Provides built-in diagnosticsto ensure proper systemoperation–Provides interface to Liebertdata centre managementsystemsCondenserFan SpeedLiebert MCUnit StatusAmbientTemperatureHeadPressureLiebert DSE Indoor ratorFan SpeedLiebert DSE with iCOMBenefits:LiebertiCOM20

Adiabatic FreeCooling ChillersFreecoolingADIABATICPADAdiabatic Cooling21100% Compressor Back-up

High Efficiency and High AvailabilityIntelligent controls provide the most efficient operating mode for the chillerswhilst also providing protection during extreme ambients (50C) or loss of waterLOWTEMPFREECOOLINGADIABATICFREECOOLINGHYBRID ANICAL COOLINGSAFE MODE

Evaporative Cooling Applications2323

Liebert EVI Indirect Evaporative Air Handler–––––Capacities from 150 – 400 kW with DX or CW trimPUE 1.20 with No Outside AirPerformance based on climate and Operating TemperaturesPotential for lower Max kWHigher Tier applications require on site water storage or larger DX/CW17 C24 C35 C24 CSeasonCoolingModeDryBulbTemp( C)WetBulbTemp( llWet20145401.14SummerWetw/ DX35246751.215 C2424

Indirect Evaporative CoolingWhere it Works Assuming24 C Supplyand 35 CReturn Air 100% LoadWetting HeatExchanger TrimCoolingDry HeatExchanger25Wetting HeatExchanger

Liebert EVD Direct Evaporative Air Handler–––––Capacities from 150 – 600 kW with DX or CW trimPUE 1.10 requiring Outside Air (actual performance based on climate)Potential higher humidity and operating temperaturesLower Max kWTypically used in lower Tier applications35 C5 C24 C2626

Direct Evaporative CoolingCustomers Range – Where it worksASHRAE RecommendedOperationsMost data centres willimplement a dew point limitat or near the ASHRAEupper level of15oCHyperscale / AggressiveOperations2727

Liebert XD Primary or Supplemental Cooling Designed for High Density Localized cooling modules –cooling at the source – add ondemand 100% sensible Pumped Refrigerant Works with any rack New Liebert XDR– Back Of Cabinet– Room Neutral– No Fans (electrical)– Flexible – any rack– Future economizer28 Energy saving 50%Liebert XDR28

Modular Constructed Data Centre? Traditional “Stick-Build”DesignBuildInstall– Build creating physical structure– Install adding mechanical/electrical plant and IT eqpt. Emerson Data CentreContainer SolutionDesignManufactureInstall– Manufacture fabricating container in factory,including mechanical/electrical plant– Install placing container inside/outside a structure,connecting mechanical/electrical plant, adding IT eqpt. 29NBN Australia Data CentreModular Constructed Data Centre (MCDC)ManufactureAssembleDesignOff-SiteOn-SiteThe MCDC Becomes the Building!29

DCIM – Data Centre InfrastructureManagementSITE MANAGER3030

DCIM Evolution RoadmapReal-time, resilient datacenterHow do I Improve?Real-time data centerOptimizedCapabilityWhat should I do?What is it doing?ReactiveWhat do I have?Basic Remote dataaccess Ad hocprocesses Limited tools Unclear roles Problems notunderstood Monitor / Alerts Status / Healthviews Littleprioritization Tools areisolated Few standards Simple KPIs ProblemsunderstoodProactive Real-time data Basicinformationmodels Policies defined Collaboration Holistic tools KPIs aligned toobjectives Problems areanticipated Predictivemodeling Root causeanalysis Automatedpolicy andexceptionmanagement Activeidentification ofcost reduction Avoid problemsituationsDo it for me!Autonomic Automatedpolicies Auto-Responseto events Self-diagnosis /healing Tightintegration tobusinessprocessesValue3131

DCIM Intelligence Delivers Capacity Managementand Thermal Visualization and MoreIntelligent sensors provide insight to optimize efficiency and capacity– Electrical power consumption– Airflow– Gross cooling capacity (ex CW)– Delivered Net Sensible capacity– Remaining Capacity– Predictive DiagnosticsThermal VisualizationCapacity Stack 3D model of the data center showing the thermalconditionsProduce 3D rotational view of data center floor andinventoryThermal visualization view of front/rear of IT racks3232

Wireless Sensors Can Help Wireless sensors support dynamic ITenvironments and provide the flexibility andbenefits of monitoring and control of thecooling systemsOffers lower deployment costs compared tofixed sensorsMeasurements include temperature, humidity,pressure, powerUltra low power consumption ensures longbattery life ( 5 years)Wireless Sensor DevicesWireless GatewayControl System3333

Thermal Management System Keys to aSuccessful Data Centre es improved reliability in controlled supply airtemperatures to the RackContainmentCritical Means to driver for higher return air temperaturesto the cooling unitHigher return air temperatures increase unit capacities tolower unit countReduced mechanical refrigeration energyEconomizationImproved life (MTBF)Sustainable control of operating costsAdjust and optimize the cooling system to the IT loadControlNetworking for optimization, fault tolerance andinformation sharingMaintain operating condition (ASHRAE Guidelines)Means to verify optimal performanceIntelligentMonitoringAnticipating / predicting critical issues that could impactreliability and costsPlanning change and growthTime value of money, reduced waste of excess capacity34ScalableDesignTakes advantage of latest technology as improvementscome to marketSpeed of deployment3