室内气溶胶颗粒物运动和传播的研究现状  

Research Status of Indoor Aerosol Particles Movement and Propagation

作　　者：张萌 刘馨[1] 孙鹏 鄂闯 左雨凝 林心童 Zhang Meng;Liu Xin;Sun Peng;E Chuang;Zuo Yuning;Lin Xintong(School of Municipal and Environmental Engineering,Shenyang JianZhu University,Shenyang 110168;Beijing Urban Construction and Installation Group Co.,Ltd.,Beijing,100089)

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168 [2]北京城建安装集团有限公司,北京100089

出　　处：《建设科技》2022年第9期40-45,共6页Construction Science and Technology

基　　金：沈阳市中青年科技创新人才支持计划“严寒地区多能源耦合供热系统运行调控策略优化研究”(RC210346)。

摘　　要：气溶胶对室内空气质量的影响越来越受到人们的关注,可吸入颗粒物及其可能携带的病毒将对人类健康构成直接威胁。本文综述了气溶胶颗粒物在不同通风方式、不同换气次数、不同粒径以及不同颗粒源位置下的运动规律和传播特性。研究发现,增加换气次数对减少室内气溶胶浓度、降低人体暴露风险具有积极作用;粒径大小对室内颗粒物运动距离影响显著;对于置换通风,当颗粒源处于较低位置时,置换通风容易将颗粒物携带到高处从而对人体造成不利影响;对于混合通风,颗粒源位置变化对呼吸区浓度影响较小;对于地板通风,颗粒物位置变化对分区浓度分布产生直接影响。本研究有助于探索气溶胶颗粒物在室内的运动和传播,为降低疾病传染的概率提供参考依据。The impact of aerosol on indoor air quality has attracted more and more attention.Inhalable particles and their possible viruses will pose a direct threat to human health.This paper summarized the movement regulations and propagation characteristics of aerosol particles under different ventilation modes,ventilation frequency,particle sizes and particle source locations The study found that increasing the ventilation frequency had a positive effect on reducing indoor aerosol concentration and human exposure risk,and the particle sizes had a significant impact on the moving distance of indoor particles.For displacement ventilation,when the particle source was in a low position,it was easy to carry particles to a high place,resulting in adverse effects on human body.For mixed ventilation,the change of particle source location had little effect on the concentration in respiratory area,but it had a direct impact on the concentration distribution in the zone for floor ventilation.This study is conductive to explore the indoor movement and propagation of aerosol particles,providing a reference for reducing the probability of disease infection.

关 键 词：气溶胶颗粒物 通风方式 粒径大小 换气次数 颗粒源位置 

分 类 号：X513[环境科学与工程—环境工程]