三层建筑材料中VOCs散发的数学模型  

A Mathematical Model for VOCs Emissions from Three Layer Building Materials

作　　者：张欣 汲水[2] 

机构地区：[1]山东同圆设计集团有限公司 [2]山东大学热科学与工程研究中心

出　　处：《建筑热能通风空调》2011年第3期38-41,共4页Building Energy & Environment

摘　　要：本文提出了一个描述三层建筑材料中挥发性有机化合物(Volatile Organic Compounds,VOCs)散发规律的数学模型。该模型考虑了VOCs在三层建筑材料中的扩散和通过空气边界层时的传质阻力,得到了一个基于拉普拉斯变换的通解。与其他能描述多层建筑材料中VOCs散发的模型相比,由该模型得到的是解析解而非数值解,便于预测建筑材料中VOCs的散发过程。A simple mathematical model is proposed to account for emissions of Volatile Organic Compounds（VOCs） from three-layer building materials.The model considers both the diffusion within three layer building materials and the mass transfer resistance through the air boundary layer.A general solution method based on Laplace transform is presented.Compared to other models capable of accounting for emissions of VOCs from multi layer building materials,the present model is fully analytical instead of being numerical.The present model was validated by the experimental data from the specially designed test.The results indicated that there was a good agreement between the model predictions and the experimental data.

关 键 词：三层建筑材料 数学模型 VOCS 

分 类 号：TU50[建筑科学—建筑技术科学] X50[环境科学与工程—环境工程]