自然通风顶层房间夏季室内热环境特征

Feature of indoor thermal environment of natural ventilation top-floor rooms

本文通过对顶层房间夏季室内热环境的测量和数据分析,指出其热状况不同于相应中间层和底层房间。其室内不但温度高,同时屋顶内表面温度亦大大高于其它壁面温度,使室内形成较强的不对称热辐射场。二者构形了顶层房间夏季室内热环境的特征,增加了居住者的不舒适感。

By measuring and analyzing data obtained from the indoor thermal oftop-floor rooms in summer,this paper puts forward the view that thethermal state of top-floor rooms is different from these of middles-floorand ground-floor rooms.Not only can their indoor temperature be high,but also the temperature of inside surface of the roof can be much higherthan those of all other inside surface.In this way,a stronger asymmetrialthermal radiant field will be formed,these two factors form the main fea-ture of the sammer thermal enviroment of the top-floor roooms,and alsomake worse for the human bodys comfort.