不同通风形式下住宅内细颗粒物质量浓度及室内暴露量的模拟及比较
Comparison of indoor concentration of and exposure to PM2.5 between residences with different ventilation modes based on simulation
摘要：
大气中的细颗粒物（PM2.5）可穿透围护结构进入室内环境中，和室内产生的细颗粒物一起作用，导致人体在室内暴露在细颗粒物中。不同的住宅通风方式会导致不同的室内细颗粒物质量浓度水平和室内暴露量。模拟计算了北京地区在过渡季、夏季、春季典型工况下，采用自然通风和机械通风的住宅的室内细颗粒物浓度水平和室内暴露量，并计算了相关通风形式所对应的能源消耗量。结果表明，对于较密闭的住宅，采用自然通风且室内开启空气净化器时，与采用机械通风的住宅均可获得较低的细颗粒物室内暴露量。在所研究的情况下，自然通风的能源消耗量略低于机械通风。
Abstract：
Atmospheric PM2.5 can penetrate into indoor environment through building envelopes. It can lead to indoor exposure of human beings to PM2.5 combined with indoor PM2.5 sources. Different ventilation modes result in different PM2.5 indoor concentrations and exposure. Simulates and calculates the PM2.5 indoor concentrations and exposure of residences with natural ventilation and mechanical ventilation in transient seasons, summer and winter as well as the corresponding energy consumption. The results show that residence of natural ventilation with an air cleaner and the residence of mechanical ventilation corresponded to relative lower indoor exposure to PM2.5. The energy consumption of natural ventilation is little smaller than that of mechanical ventilation.
Keywords:PM2.5,indoorenvironment,exposure,naturalventilation,mechanicalventilation