湖南大学学报（自然科学版）2024，Vol.51Issue(3)：193-200,8.DOI:10.16339/j.cnki.hdxbzkb.2024041
有限空间空气稳定性下人员呼吸过程暴露风险分析
Personal Exposure Risk Assessment of Respiratory Process under Effect of Limited Space Air Stability
摘要
Abstract
This research took the breathing microenvironment as the object to conduct an analysis on personal exposure risk in the human breathing process under the effect of the limited space air stability by means of a full-scale experiment and numerical simulation.The results showed that the personal exposure level mainly depended on the breathing activity during the pollutants initial releasing period.As the pollutants went further,the influence of limited space air stability and ventilation on personal exposure became important and presented a characteristic of time independence.In the stable condition,due to the lock-up effect of the stratified environment,the transport of the exhaled pollutants tended to remain in the initial inertia force direction,and not easy to spread;The unstable condition was more likely to disturb the ability of the initial inertia force transport direction and to accelerate the diffusion of pollutants,thus greatly reducing the personal exposure in the breathing microenvironment.This study has theoretical and practical significance in controlling the transport of pollutants,preventing the spread of disease,and ensuring occupant health.关键词
有限空间空气稳定性/呼吸微环境/个体暴露风险/气流组织/计算流体动力学Key words
limited space air stability/breathing microenvironment/personal exposure risk/air distribution/computational fluid dynamics分类
建筑与水利引用本文复制引用
邓晓瑞,龚光彩,王瑞,何怡倩,石星,贺习之..有限空间空气稳定性下人员呼吸过程暴露风险分析[J].湖南大学学报（自然科学版）,2024,51(3):193-200,8.基金项目
国家自然科学基金重大项目(72091513),National Natural Science Foundation Major Project(72091513) （72091513）
湖南省重点领域研发计划资助项目(2020DK2003),Hunan Provincial Research and Development Plan of Key Areas(2020DK2003) （2020DK2003）
湖南省科技成果转化及产业化计划(2020GK2077),Hunan Provincial Commercialization and Industrialization Plan of Scientific and Technological Achievements(2020GK2077) （2020GK2077）
