Advanced Cooling Facilities Piping System Guideline - Status Update.pdf

1、Status UpdateADVANCED COOLING FACILITIES PIPING SYSTEM GUIDELINESustainability:Cooling EnvironmentsAdvanced Cooling Facilities Piping System GuidelineJohn Gross,President,J.M.Gross Engineering,LLCMark Dansie,Open Compute ProjectOVERVIEWAdvanced Cooling Facilities(ACF)Piping System Guideline necessar

2、y to align facilities with cooling solutionsGuideline enables interoperability of liquid cooling solutionsParametric Guideline focused on Piping System PerformanceGuideline will feed requirements into ACF Colocation Site Assessment ChecklistGuideline forms foundation for Advanced Cooling Solutions(A

3、CS)connection performance requirementsBased upon Engineering Best Practices and Input from ACS ManufacturersOVERVIEWThree Different Use CasesExisting air-cooled data centers desiring to retrofit liquid coolingNew data centers with air-cooled Day 1 deployments designed for future refit for liquid coo

4、lingNew data centers designed explicitly for liquid cooling-only deploymentsBoundary DiscussionPerformance ParametersFWS Temperature ClassFWS Temperature DeltaSystem Operating PressureAvailable Differential PressureWorking FluidsMaterials of ConstructionPipe Connection MethodsAnd much moreFWS Temper

5、ature ClassBased on ASHRAE TC9.9 Thermal Guidelines v5(2021)W17,W27,W32,W40,W45,W+W class number equals Maximum Design Supply TemperatureThermal Guidelines for Data Processing Environments,Fifth EditionASHRAE,2021FWS Temperature DeltaBased on FWS Temperature Class(ASHRAE W Classes)Minimum and Maximu

6、m ValuesVaries based on W ClassColder Temperature Classes with chillers have tighter limitsMin dT=5.6CMax dT=10CWarmer Temperature Classes likely have higher allowable dTFWS Maximum Operating PressureValue is Operating Pressure,NOT Working PressureCurrently set to 10 bar(145 psig