摘要
通过文献调研指出了六个影响室内PM2.5空间分布的主要因素,为了确定各个影响因素的重要程度,设计了正交试验,采用CFD的方法,对各个工况进行模拟。基于实验数据,验证了颗粒物分布模拟结果的准确性。利用正交试验方法,对气流组织形式、房间面积、房间长宽比、换气次数、污染源位置、污染物强度六种影响因素的重要性进行排序,得出房间气流组织为最重要的因素。
Six main factors affecting indoor PM2.5 spatial distribution were pointed out through literature research.In order to determine the importance of each factor,orthogonal experiments were designed and CFD method was used to simulate each working case.Based on the experimental data,the accuracy of particle distribution simulation results is verified.The importance of air distribution,room area,room aspect ratio,air change rate,location and intensity of pollution source were ranked by orthogonal test method.The results indicated that air distribution in room was the most important factor.
作者
刘宇
刘红
洪国祥
廖春晖
LIU Yu;LIU Hong;HONG Guo-xiang;LIAO Chun-hui(College of Civil Engineering,Chongqing University;Institute of Health and Environment,Chongqing University of Science and Technology)
出处
《建筑热能通风空调》
2022年第4期36-41,共6页
Building Energy & Environment
基金
科技部十三五国家重点研发计划项目(2017YFC0702704)。
关键词
PM2.5
CFD
模拟
浓度分布
正交试验
PM2.5
CFD simulation
concentration distribution
orthogonal test
