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Volume 12, No. 6, December 2012, Pages 1398-1408 PDF(772 KB)  
doi: 10.4209/aaqr.2011.11.0222   

VOC Emission from Building Materials in Residential Buildings with Radiant Floor Heating Systems

Sun Sook Kim1, Dong Hwa Kang2, Dong Hee Choi2, Myoung Souk Yeo3, Kwang Woo Kim3

1 School of Architecture, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, Korea
2 Department of Architectural Engineering, Pennsylvania State University, University Park, Pennsylvania, USA
3 Department of Architecture, Seoul National University, Shillim-dong, Gwanak-gu, Seoul, Korea




The emission rates of volatile organic compounds (VOC) from building materials and the resulting indoor concentrations are influenced by temperature. Radiant floor heating systems are widely used in most residential buildings in Korea, and VOC emissions from flooring materials increase as the floor temperature rises. In this study, a numerical model is presented to evaluate the VOC emissions from building materials at different temperatures depending on the heating conditions. A coupled model is developed to simulate the temperature variation of building materials and VOC emissions in the floor heated space, which combines the building heat transfer model for materials and indoor air temperature with the mass transfer model for VOC emissions and indoor VOC concentrations. The model was validated by a mock-up test, and it was then used to examine the emission characteristics from flooring materials under different heating conditions. The results show that emissions of VOC from flooring materials tend to increase as the floor temperature rises during the heating condition.



Keywords: Volatile organic compounds; Building material; Building thermal model; Emission model; Floor heating.



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