Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
PNNL released a report that discusses this question in detail: "Infiltration Modeling Guidelines forCommercial Building Energy Analysis" http://ibpsa-boston.com/minutes/IBPSAboston-presentations_2011-09-16_Gowri.pdf
ArchEnergy has another paper that explored this topic further: http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/2011-08-17_workshop/documents/3_Infiltration.pdf
Determining which schedule to include is determined on if the space is positively pressurized by a mechanical system or if not. If it is positively pressurized the infiltration schedule should be reduced during those times.
Stack effect impacts infiltration for very tall buildings but for most building with a small amount of floors the key consideration is tightness of the shell and windows which can properly modeled using the flow per exterior wall area. Refer to either of the two links for further information.
| | 2 | No.2 Revision |
PNNL released a report that discusses this question in detail:
"Infiltration "Infiltration Modeling Guidelines forCommercial for Commercial Building Energy Analysis"
http://ibpsa-boston.com/minutes/IBPSAboston-presentations_2011-09-16_Gowri.pdfAnalysis"
ArchEnergy has another paper paper that explored this topic further:
http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/2011-08-17_workshop/documents/3_Infiltration.pdffurther:
Determining which schedule to include is determined on if the space is positively pressurized by a mechanical system or if not. If it is positively pressurized the infiltration schedule should be reduced during those times.
Stack effect impacts infiltration for very tall buildings but for most building with a small amount of floors the key consideration is tightness of the shell and windows which can properly modeled using the flow per exterior wall area. Refer to either of the two links for further information.
