Latest revision of the Cold Plate Cooling Loop Requirements.pdf

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1、Latest revisions Cold Plate Cooling Loop RequirementsSustainability:Cooling EnvironmentsCold Plate Cooling Loop RequirementsShahar Belkin,Executive Vice President Product,ZutaCoreAgendaBackground refresherUpdates since OCP Global Summit October 2022Call to actionWhen do we need to move to Liquid Coo

2、ling?Direct-on-Chip Liquid Cooling OptionsSingle Phase ImmersionTwo Phase ImmersionSingle Phase Cold Plate water coolingTwo phase Cold Plate dialectic liquidCold Plate immersionAdding two phase cold plates to RequirementsSingle phase&two-phase cold plates configurationsingle-phase cooling loopSingle

3、 phase&two-phase cold plates configurationtwo-phase cooling loopParameters and metrics of importanceSingle Phase Cold PlateMetricsParameterW/cm2or/WHeat transfer performancePaOperating pressurePaPressure dropL/minFlow rate per 100WLiquid inlet temperatureLiquid outlet temperaturem2Active surface are

4、amFiltration requirementmFlatnessN/mmStiffnessTwo Phase Cold PlateMetricsParameterW/cm2or/WHeat transfer performancePaOperating pressureL/minFlow rate per 100Wboiling temperature=vapor outlet temperature%vapor output quality vapor/liquidm2Active surface areamFiltration requirementmFlatnessN/mmStiffn

5、essWater&Dielectric Cooling Liquid Pros&ConsDielectric Liquid CoolingWater for CoolingNoshort circuit ofelectronics during potential leaksShortcircuit ofelectronics during potential leaksNocorrosionrisk andbacterial growthCorrosionrisk andbacterial growthThermal performancenot related toflowThermal

6、resistance related toFlowLiquid weight,about 1.4 Xwater(10 Liter per rack)Less weightEnvironmental-Global Warming Potential(GWP 1-550depending on liquid),PFAS regulationsEnvironmental Nopotentialrisk,Toxicity ofEthylene GlycolLimited providers ofrefrigerantsNospecific provider ne