建材中VOCs扩散系数和分配系数的模型研究
发布时间：2018-09-14 17:25
【摘要】：Bodala,运用静态双仓法建立的测定干建材中VOCs扩散系数和分配系数的数学模型是合理的,有一定的应用价值.但该模型假设低浓度仓中VOCs的初始浓度为零,限制了模型的应用范围.针对使用VOCs液体为污染源且建材透气性较好的条件,作出合理的假设,构建了VOCs在建材中扩散的数学模型.采用LaplaceCarson变换详细求解模型,得出计算VOCs扩散系数的方法,并运用两组数据对模型进行了比较分析,结果表明优化后的模型有一定的实用性和可行性.
[Abstract]:The mathematical model established by Bodala, for the determination of diffusion coefficient and distribution coefficient of VOCs in dry building materials by static double warehouse method is reasonable and has certain application value. However, the model assumes that the initial concentration of VOCs in the low concentration bin is zero, which limits the application range of the model. Aiming at the condition that VOCs liquid is used as the source of pollution and the permeability of building materials is good, a mathematical model of VOCs diffusion in building materials is constructed by making reasonable assumptions. The LaplaceCarson transform is used to solve the model in detail, and the method of calculating the diffusion coefficient of VOCs is obtained, and the two groups of data are used to compare the model. The results show that the optimized model has certain practicability and feasibility.
【作者单位】： 河北建筑工程学院数理系;中国建筑材料科学研究总院绿色建筑材料国家重点实验室;中煤张家口煤矿机械有限责任公司;
【分类号】：O175
[Abstract]:The mathematical model established by Bodala, for the determination of diffusion coefficient and distribution coefficient of VOCs in dry building materials by static double warehouse method is reasonable and has certain application value. However, the model assumes that the initial concentration of VOCs in the low concentration bin is zero, which limits the application range of the model. Aiming at the condition that VOCs liquid is used as the source of pollution and the permeability of building materials is good, a mathematical model of VOCs diffusion in building materials is constructed by making reasonable assumptions. The LaplaceCarson transform is used to solve the model in detail, and the method of calculating the diffusion coefficient of VOCs is obtained, and the two groups of data are used to compare the model. The results show that the optimized model has certain practicability and feasibility.
【作者单位】： 河北建筑工程学院数理系;中国建筑材料科学研究总院绿色建筑材料国家重点实验室;中煤张家口煤矿机械有限责任公司;
【分类号】：O175
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