渗透通风建筑室内颗粒物的污染特征  

Pollution characteristics of indoor particle matter at infiltration ventilation building

作　　者：樊越胜[1] 谢伟[1] 张鑫 余俊伟 司鹏飞 FAN Yuesheng1,XIE Wei1,ZHANG Xin1,YU Junwei1,SI Pengfei2,3(1. School of Environmental and Municipal Engineering, Xi＇an University of Architecture and Technology, Xi＇an 710055, China 2. China Southwest Architecture Design Institute, Chengdu 610042, China 3. College of Architecture, Tsinghua University, Beijing 500084, Chin)

机构地区：[1]西安建筑科技大学环境与市政工程学院,西安710055 [2]中国建筑西南设计研究院,成都610042 [3]清华大学建筑学院,北京100084

出　　处：《环境工程学报》2018年第4期1128-1134,共7页Chinese Journal of Environmental Engineering

基　　金：国家重点研发计划(2016YFC0700503)

摘　　要：通过建立颗粒物穿透率与渗透通风房间换气次数的数学模型以及室内颗粒物浓度集总参数模型,对常州市某住宅建筑室内颗粒物污染特征进行分析,通过实验验证了颗粒物穿透率、室内颗粒物浓度模型的准确性。计算结果表明,对于室内无污染源的渗透通风房间,粒径为0.5、1.0、2.5μm的颗粒物以及PM_(2.5)穿透率随换气次数的增大而增加;当换气次数从0.2次·h^(-1)增加至0.5次·h^(-1)时,PM_(2.5)穿透率由70%增大至88%,增加25.7%。对于用香烟烟雾作为颗粒污染物尘源的房间,空气净化器的实际洁净空气量CADR值为152 m^3·h^(-1),相比实验舱标定工况320 m^3·h^(-1)衰减52.5%。Pollution characteristics in infiltration ventilation room was analyzed in Changzhou through establishing both the mathematical model of particle penetration rate with air exchange rate and the mass balance equation of particulate matter. The accuracy of those models were also tested and verified by experiments. The results indicate that the penetration rate of particle with diameter of 0.5, 1.0, 2.5 μm and PM（2.5） were increased with air exchange rate, and the penetration rate of PM（2.5） increased from 70% to 88%, increasing by 25.7% when the air exchange rate increased from 0.2 times per hour to 0.5 times per hour. The clean air delivery rate value of air cleaner was152 m^3·h^（-1）, which attenuated 52.5% compared to the value of 320 m^3·h^（-1） in test chamber conditions using cigarette smoke as the pollutant source.

关 键 词：渗透通风 颗粒物 换气次数 穿透率 

分 类 号：X51[环境科学与工程—环境工程]