335-室内PVC壁纸上细颗粒物沉积特性实验研究.pdfVIP

室内PVC 壁纸上细颗粒物沉积特性 实验研究 1 1 2 1 王慧 ，范晓伟 ，王艳 ，商良钺 1.中原工学院能源与环境学院, 2.河南城建学院建筑环境与能源学院 摘 要：在温湿度为 22.4~25.8℃、16％~18％的条件下，通过实验探究了壁纸表面粗糙 度对室内粒径为 0.4μm，0.55 μm，0.65 μm，0.75μm，0.9μm，1.5μm 和 1.8μm 的微小 颗粒物的沉降和扩散规律的影响，分析了小室内风扇转速分别为 1018rpm，1527rpm 和 2800rpm 时，不同风速对壁纸表面颗粒物沉积特性的影响，为将来室内颗粒物的去除及室内 装修壁纸的选取等提供一定的参考。研究发现：随粒径的增加，颗粒沉积衰减系数呈先下降 后上升趋势；壁纸表面粗糙程度越大，颗粒物的沉积速度越快；且风速对壁纸表面颗粒物的 沉积起到一定的促进作用。 关键词：颗粒物；壁纸；粗糙度；沉积率 Experimental Study of Deposition Characteristic of Fine Particles on Indoor PVC Wallpaper 1 1 2 1 Wang Hui ,Fan Xiao-wei ,Wang Yan ,Shang Liang-yue 1.School of Energy and Environment, Zhongyuan University of Technology, 2.School of Architectural Environment and Energy, Henan University of Urban Construction Abstract: In order to provide some references for the future removal of indoor particles and the selection of wallpaper. Through this experiments, under the condition of temperature and humidity of 22.4 to 25.8℃ and 16% to 18%, we study the law of sedimentation and dispersion about the particle size of 0.4μm, 0.55μm, 0.65μm, 0.75μm, 0.9μm, 1.5μm and 1.8μm particles on different roughness wallpaper surface, and analyze when the fan speed is 1018 rpm, 1527 rpm and 2800 rpm, the effect of wind speed on the deposition characteristics of the wallpaper surface respectively. It was found that particle deposition loss rate is first down, then on the rise with the increase of particle size; the greater the surface roughness of the wallpaper, the faster the deposition of particles. And also, wind speed plays a role in promoting the deposition of particulates on the wallpaper surface. Keywords: particles; wallpaper; roughness; deposition rate 0 引言 许多研究成果证明，室内颗粒物的粒径分布及污染程度，与室内污染源和当地大气环境 作者简介：王慧、女、1990