A mass transfer model for simulating VOC sorption on building materials

被引:105
作者
Yang, X
Chen, Q
Zhang, JS
An, Y
Zeng, J
Shaw, CY
机构
[1] Univ Miami, Dept Civil Architectural & Environm Engn, Coral Gables, FL 33124 USA
[2] MIT, Bldg Technol Program, Cambridge, MA 02139 USA
[3] Syracuse Univ, Dept Mech Aerosp & Mfg Engn, Syracuse, NY 13244 USA
[4] Natl Res Council Canada, Inst Res Construct, Indoor Environm Program, Ottawa, ON K1A 0R6, Canada
基金
美国国家科学基金会;
关键词
numerical model; indoor air quality; diffusion coefficient; partition coefficient; environmental chamber; gypsum board;
D O I
10.1016/S1352-2310(00)00397-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 [工学]; 0830 [环境科学与工程];
摘要
The sorption of volatile organic compounds (VOCs) by different building materials can significantly affect VOC concentrations in indoor environments. In this paper, a new model has been developed for simulating VOC sorption and desorption rates of homogeneous building materials with constant diffusion coefficients and material-air partition coefficients. The model analytically solves the VOC sorption rate at the material-air interface. It can be used as a "wall function" in combination with more complex gas-phase models that account for non-uniform mixing to predict sorption process. It can also be used in conjunction with broader indoor air quality studies to simulate VOC exposure in buildings. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1291 / 1299
页数:9
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