煤气与热力2026，Vol.46Issue(3)：31-37,7.
严寒地区被动房室内PM2.5质量平衡模型与分析
Mass Balance Model and Analysis of Indoor PM2.5 in Passive Houses in Severely Cold Regions
摘要
Abstract
The lumped parameter method was adopted to establish a mass balance model for indoor PM2.5 in passive houses.Two typical passive houses in severely cold regions were selected as study subjects.Through on-site measurements including the CO2 decay method and continuous monitoring,model parameters(air ex-change rate,characteristic parameters of the fresh air system,PM2.5 deposition rate,PM2.5 penetration coef-ficient,and source strength)were determined.The re-lationship between the characteristic parameters of the fresh air system and outdoor PM2.5 mass concentration was established.The penetration coefficients and depo-sition rates of the two passive houses are relatively close,with an average indoor PM2.5 deposition rate of 0.02 h-1 and an average penetration coefficient of 0.30,both lower than those of conventional houses and previ-ous test results.The measured value of the characteris-tic parameter of the fresh air system is 1.30±0.12,indi-cating that the existing M5 medium-efficiency filters cannot effectively intercept PM2.5.The established in-door PM2.5 mass balance model and the key param-eters obtained from field measurements are reasonable.关键词
被动房/细颗粒物(PM2.5)/穿透系数/渗透因子/沉降率/严寒地区Key words
passive house/fine particulate matter(PM2.5)/penetration coefficient/infiltration factor/de-position rate/severely cold region分类
建筑与水利引用本文复制引用
余志义,王昭俊,关迪午,薛庆雯..严寒地区被动房室内PM2.5质量平衡模型与分析[J].煤气与热力,2026,46(3):31-37,7.基金项目
国家自然科学基金项目(项目编号:51678179) （项目编号:51678179）
