USING FUGACITY TO PREDICT VOLATILE EMISSIONS FROM LAYERED MATERIALS WITH A CLAY/POLYMER DIFFUSION BARRIER
Structural Insulated Panels (SIPs) have significant environmental and energy advantages. However, the tight structure that results may cause degraded indoor air quality and the potential release of volatile organic compounds (VOCs) from these layered materials must be considered. A physically-based model for predicting VOC emissions from multilayer materials is described. Fugacity is used to eliminate the concentration discontinuities at the interface between layers. This avoids an obstacle associated with numerically simulating mass transfer in composite materials. Hexanal emissions from multi-layer SIPs are simulated to demonstrate the usefulness of the fugacity approach. In addition, the multi-layer model is used to investigate the impact that clay/polyurethane nanocomposite diffusion barriers can have on VOC emissions. Indoor gasphase concentrations can be greatly reduced with a barrier layer on the surface, thereby minimizing the environmental impact of SIPs.
Multi-layer Fugacity Barrier layer VOC Indoor air
Huali Yuan John C.Little Eva Marand Zhe Liu
Department of Civil and Environmental Engineering, Virginia Tech Blacksburg, Virginia 24061, USA Department of Chemical Engineering, Virginia Tech Blacksburg, Virginia 24061, USA
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）