自然通风对装修材料污染物散发的影响  

Influence of Natural Ventilation on the VOCs Emission from Furnishing Materials

作　　者：杨帅[1] 张吉光[1] 任万辉[1] 

机构地区：[1]青岛理工大学环境与市政工程学院

出　　处：《洁净与空调技术》2007年第3期50-53,共4页Contamination Control & Air-Conditioning Technology

摘　　要：根据装修材料污染物散发过程的传质机理,对于刚装修过的自然通风的房间,建立起一套通用的数学模型。根据理论分析,自然通风对污染物散发过程的影响有两个方面,房间主流区污染物浓度和装修材料表面的污染物对流传质系数。在通用数学模型基础上,对于给定的不同自然通风量分别进行模拟,对比结果可以发现:自然通风效果越强,越有利于加快污染物的发散,同时降低的室内有害物浓度的峰值以及提前了峰值出现时刻,从而加快了室内污染物浓度达标的过程。According to the mass transfer mechanism of the VOCs emission from furnishing materials a set of general mathematical models are created for the natural ventilative rooms which were newly decorated.The influence of natural ventilation on the VOCs emission has two factors,the concentration in the room air and the convection mass transfer coefficient above furnishing material surfaces. Gives different ventilation rates and simulates the process using the general models.From the result we can find that,the bigger natural ventilation rate is,the rapidder VOCs are emitted.We also find that the strongger ventilation would reduce the peak value and put-off its time,so it would quicken the process of VOCs concentration reaching the criterion.

关 键 词：装修材料 室内污染物 自然通风 数值模拟 

分 类 号：TU834.1[建筑科学—供热、供燃气、通风及空调工程]