OZONE PENETRATION THROUGH WALL ASSEMBLIES IN A FULL-SCALE CHAMBER SYSTEM
Products from ozone initiated indoor gas phase and surface chemistry may contribute significantly to IAQ problems. This paper reports data of ozone penetration through wall assemblies with cellulose fiber insulation and/or foam insulation, measured in a full-scale coupled indoor-outdoor environmental simulator. Results indicate that cellulose fiber insulation has more ozone removal capacity than foam insulation. The computed overall ozone penetration factor for the tested wall assemblies under 0.1 W.C. pressure difference across the wall with cellulose fiber and foam insulation was 0.062. For realitvely air-tight walls, O3 penetration mainly comes from open windows or doors. It remains a question if the O3 might have significant reaction with compounds emitted from the wall materials, and could produce oxidized reaction products (e.g., formaldehyde and other aldehydes) causing IAQ concerns.
Ozone penetration Cellulose fiber insulation Foam insulation Wall assemblies
Z.Gao J.S.Zhang
Building Energy and Environmental Systems Laboratory (BEESL), 149 Link Hall, Syracuse University, Syracuse, NY 13244-1240;
国际会议
北京
英文
2007-09-07（万方平台首次上网日期，不代表论文的发表时间）