摘要
为认识住宅室内PM2.5实际的通风净化状况,对北京地区15户住宅客厅和卧室的室内PM2.5浓度、空气净化器和机械新风系统的运行功率及外窗开关状态进行了连续测试记录。基于不同室外PM2.5污染等级下室内PM2.5质量浓度低于35μg/m^3的相对时长,提出了室内PM2.5净化时间达标率的概念,由此分析了室外PM2.5污染等级、房间通风净化方式等对室内PM2.5净化时间达标率的影响。结果表明:现有以开窗率和净化开启率描述的通风净化策略并不理想;对于室外PM2.5污染等级为轻度至重度的情况,通过优化通风净化策略可改善室内PM2.5环境。
In order to understand the actual ventilation and purification status of indoor PM2.5 in residences,tests the indoor PM2.5 concentration,the operating power of air purifiers and mechanical outdoor air systems,and the on-off state of external windows in the living rooms and bedrooms of 15 apartments in Beijing.Based on the relative duration of indoor PM2.5 mass concentration below 35μg/m^3 under different outdoor PM2.5 pollution levels,puts forward the concept of indoor PM2.5 purification time compliance rate,and analyses the effect of outdoor PM2.5 pollution level and room ventilation and purification strategy on indoor PM2.5 purification time compliance rate.The results show that the existing ventilation and purification strategy described by the window opening frequency and running ratio of air purifiers is not ideal.The indoor PM2.5 environment can be improved by optimizing the ventilation and purification strategy when outdoor PM2.5 pollution level is from mild to severe.
作者
简毅文
王旭
刘晓霄
郭锐敏
侯雨晨
Jian Yiwen;Wang Xu;Liu Xiaoxiao;Guo Ruimin;Hou Yuchen(Beijing University of Technology,Beijing,China)
出处
《暖通空调》
2019年第9期20-28,共9页
Heating Ventilating & Air Conditioning
基金
国家重点研发计划资助项目“居住建筑室内通风策略与室内空气质量营造”(编号:2016YFC0700501)
关键词
住宅
细颗粒物(PM2.5)
净化时间达标率
通风净化策略
开窗率
净化开启率
residence
fine particle matter(PM2.5)
purification time compliance rate
ventilation and purification strategy
window opening frequency
running ratio of air purifier
