广州市单体建筑室外微气候热环境研究

Study on Outdoor Micro-climate Thermal Environment for Single Building in Guangzhou

为了研究夏季广州市小区单体建筑周围热环境规律,本文以广州大学生活区某宿舍楼单体为研究对象,在其周围选取了具有代表性（不同方位及处于不同周围环境）的6个测点,逐时测量9：26-18：36时间段内的温湿度、风速、下垫面温度及辐射热流密度等热环境参数,通过对数据的整理分析,发现单体建筑周围热环境与太阳辐射强度、风速、风向、建筑遮挡作用、下垫面性质及周围环境等因素存在着一定的关系,辐射热流密度随下垫面表面温度的增大而增大。本文同时关注了热岛现象,为进一步研究小区微气候提供了实验依据。

In order to study the outdoor micro-climate thermal environment for single building in Guangzhou in summer, the experiment based on the dormitory in Guangzhou University was carried ont. Around the dormitory, six typical measuring points which located in different places and had different surrounding environments were selected. And then, several thermal environment parameters were measured during 9 ： 26 - 18 ： 30 period, including air temperature, relative humidity, wind velocity, underlying surface temperature and radiation heat flux. It was found that the factors, such as solar radiation intensity, wind velocity, wind direction, building block and so on, would have influences on thermal environment around the single building. Furthermore, the radiation heat flux would increase when the underlying surface temperature was increased. In addition, the heat island phenomenon was concerned in this paper.