Labs21: Optimizing Laboratory Ventilation Design - Labs21 ...

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Air Change Rates – <strong>Design</strong> Process • Success of CFD Model Process - Client’s Acceptance of Operating Standard 8 Air Changes as Occupied Building Standard 10 Air Changes for Emergency Use 6 Air Changes for Unoccupied Mode • Cost and/or Savings? Princeton Guyot Hall Addition • For every air change rate that is reduced, the maximum fan energy that is saved is 3%: - 10 Air Changes to 8 Air Changes Resulted in 6% Savings of Supply and Exhaust Fan Energy - 10 Air Changes to 6 Air Changes Resulted in 12% Savings of Supply and Exhaust Fan Energy Payette Associates Labs 21 Phone Forum - August 2003
CFD Modeling of Lab Spaces: Case Study of Guyot Hall � Duncan Phillips, Ph.D., P.Eng. (Associate) dap@rwdi.com � Bill Smeaton, P.Eng. (Associate) whs@rwdi.com Rowan Williams Davies & Irwin Guelph, Ontario
Page 1 and 2: Labs 21 Phone Forum Optimizing Labo
Page 3 and 4: Project Team Boston Payette Associa
Page 5 and 6: Green or LEED? • Project’s pros
Page 7 and 8: Air Change Rates - Guidelines ASHRA
Page 9: Air Change Rates - Design Process
Page 13 and 14: What is CFD � CFD = Computational
Page 15 and 16: The CFD Process � Define the regi
Page 17 and 18: What you get After Running CFD �
Page 19 and 20: Turbulence - Why Worry? � Turbule
Page 21 and 22: Including the Effects of Turbulence
Page 23 and 24: Guyot Hall Teaching Lab - Geometry
Page 25 and 26: Guyot Hall Research Lab - Geometry
Page 27 and 28: Industrial Lab - RANS Model Figure
Page 29 and 30: Industrial Lab - LES Result LES Ani
Page 31: Where do we go from here? • How d

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