摘要
城市热岛与居民舒适健康和城市用能息息相关。太阳辐射作为热岛问题的重要成因之一,其计算方法对认识和预测城市热岛有重要的作用。住区是城市的有机组成单元。本文以广州作为华南典型城市代表,通过107个住区的调研统计得到典型住区的设计特征,以具有代表性的行列式和围合式住区作为测试对象,开展夏季晴天地面入射的太阳辐射测试,将测试值与计算值对比发现:直射辐射较强时考虑建筑一次反射的计算值更接近测试值,对全天而言,是否考虑反射的计算值相接近(根均方差(RMSE)相差3~13 W/m^2),本文建立的计算公式可用于华南住区地面入射太阳辐射的预测。
Urban heat island(UHI)has a bearing on inhabitants’comforts,health and urban energy.Solar radiation is one of the main causes of UHI,and its calculation plays an important role in understanding and predicting UHI.A residential area is an organic unit of a city.By taking Guangzhou as a representative city in south China as an example,this study investigated design characteristics of typical residential areas through a survey of 107 residential areas.And then,the typical aligned and enclosed residential areas were taken as objects,and the field measurements were conducted on incident solar radiations on the ground during sunny days in summer.Moreover,comparisons between measured and calculated values show that the calculated value of the incident solar radiation is more approaching to the tested value with the consideration of primary reflection of buildings when the direct solar radiation is strong.And performances of calculated values considering and not considering reflections were quite similar(difference on RMSE 3 to 13 W/m^2)for the whole day.The proposed calculation method could be applied to predicting the solar radiation incident to the ground of in residential areas in south China.
作者
李日毅
张宇峰
黄崇耘
LI Riyi;ZHANG Yufeng;HUANG Chongyun(State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)
出处
《建筑科学》
CSCD
北大核心
2020年第2期87-94,共8页
Building Science
基金
广西科技计划项目重点研发计划“绿色生态城区参数化智能设计与热环境监测平台技术研发与应用”(桂科AB18050012)立项资助
南宁市科学研究与技术开发计划项目“绿色生态小区参数化技术研发及示范应用”(20181019-1).
关键词
华南住区
现场测试
太阳辐射
能量计算
residential areas in South China
field measurement
solar radiation
energy calculation
作者简介
李日毅(1990-),在读博士研究生;通讯作者:张宇峰(1979-),男,博士,教授,联系方式:zhangyuf@scut.edu.cn
