建筑外墙绿化对室内热环境的影响测试分析

Impact of External Greening Wall on Internal Thermal Performance

主要探讨了建筑外墙绿化对室内热舒适性的影响,选择夏热冬暖地区具有代表性的三亚某办公楼西向房间作为实验测试对象,进行夏季室内外热湿环境测试,并对人体热感觉进行现场问卷调查评价。采用对比分析的方法,分析外墙绿化前后室内热湿环境的变化,找出其变化规律及影响其变化的主要因素。实验结果表明,在相同地域气候的影响下,有外墙绿化的房间,夏季室内昼夜平均温度降低3～6℃,昼夜平均相对湿度差值减小10%～20%,外墙绿化对室内热环境的影响显著。

The effect of external greening wall to indoor thermal comfort is expounded. The indoor and outside thermal environment in summer is tested, collecting the questionnaire survey from the staffs on-site about their thermal sensation, by selecting the representative office building which rooms are towards west as test object in hot summer and warm winter area, Sanya. Comparing the thermal environment of the room with the external greening and without to analyze and find out the main factors about changes. The experimental result shows that the wall with facade greening affects indoor thermal environment significantly, and the air average temperature is decreased by 4-6℃ and the daily average relative humidity difference is reduced by 10%-20% in the same regional climate.