TC 5.12 Ventilation
Requirements & Infiltration
Want to become involved in ventilation, infiltration,
and indoor air quality (IAQ) issues at the Society level? Please read through
this web site and attend the physical-reality general and subcommittee meetings
of TC 5.12 at ASHRAE's Annual and Winter Meetings!
Purpose:
TC 2.5 merged into TC 5.12 (formerly 4.3) in 1997
TC 4.3's old scope:
TC 4.3 is concerned with (1) the identification and evaluation of ventilation
requirements for residential, commercial and institutional occupancies,
and (2) the determination of air leakage in structural components and
assemblies as affected by thermal pressure differentials.
TC 2.5 (now merged into 4.3):
TC 2.5 is concerned with predicting the air flow around buildings and its
effects on building and mechanical system performance. Issues include
the impacts of wind and thermally driven air flows on: the effectiveness
of mechanical systems and smoke pollutants relative to building intakes
and exhausts, air flow through apertures in the building envelope, and
convective heat transfer from building surfaces.
TC 4.3 moved to Section 5 and was renumbered TC 5.12 in July
2003.
TC 5.12's revised scope (approved by TAC):
TC 5.12 is concerned with ventilation, infiltration, airflow around buildings,
and the reentry of exhausts, including their interactions with indoor
air quality, HVAC system performance, and energy consumption.
Last updated August 12, 2005
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