透过玻璃窗的太阳辐射对置换通风系统的影响的实验研究

采用电热膜或电加热器等模拟太阳辐射透过玻璃窗照射到室内的地板、家具或其它物品上形成的水平、倾斜或垂直的局部热表面，定性和定量地研究这些局部热表面对置换通风系统的影响。研究表明：置换通风系统的热力分层现象总是存在的；热地板降低了温跃层的高度，对置换通风系统有不利影响；倾斜和垂直的局部热表面表现出相同的热力行为，热流量的大小对温跃层高度无影响，只是改变上部区域空气的温度。

Experimental study of the impact of solar radiation through windows on displacement ventilation system

Studies the influences of local warm areas caused by the entrance of solar ray on floor, furniture or other objects inside simulated by electrical heating films and electrical radiator. The results show that: thermal stratification always exists; warm floor lowers the height of thermocline and is unfavorable to displacement ventilation system; inclined and vertical hot surfaces have similar thermal behavior whose heat fluxes have little impact on the height of thermocline, but only changes the temperature of upper part of the room.