教学组团夏季室外热环境特征与计算模型验证  

Analysis on Summer Thermal Environment Characteristic of a Teaching Building Cluster and Validation of Its Calculation Model

作　　者：李琼[1] 孟庆林[1] 赵立华[1] 

机构地区：[1]华南理工大学亚热带建筑科学国家重点实验室,广州510640

出　　处：《土木建筑与环境工程》2011年第3期112-118,共7页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助项目(51008127;50720165805);国家国际科技合作计划资助项目(2011DFA91210);广东省自然科学基金资助项目(10451064101005823;8251064101000006);高等学校博士学科点专项科研基金资助项目(20100172120006);华南理工大学亚热带建筑科学国家重点实验室资助课题(2011ZC20);华南理工大学中央高校基本科研业务费资助项目(2009ZM0088;2009ZZ0067);华南理工大学自然科学基金资助项目(x2jzE5090660)

摘　　要：对湿热地区典型教学组团的夏季室外热环境进行了33 h昼夜连续实测。根据气象参数,行人高度上温度、湿度、风速和湿球黑球温度(WBGT)分布以及典型地表温度等的测试结果,得到湿热地区教学组团夏季室外热环境的主要特征。测试结果表明,组团内的天井、架空、透水砖可有效降低夏季白天行人高度处的空气温度及WBGT,一些建筑设计手法对组团夏季白天室外热舒适的改善效果依次为:架空>天井>透水砖路面>不透水砖路面>混凝土路面。夜间,各测点的热舒适性基本一致。将测试结果对组团室外风速和WBGT现有计算模型进行验证研究。研究表明,数学公式计算值的相对误差均不超过6%,与实测统计值相吻合。A 33-hour field test of outdoor thermal environment was carried out in a typical teaching building cluster located in the hot and humid zone in summer.From the experiment results of local climate data,air temperature,humidity,wind velocity and wet bulb globe temperature（WBGT） at the pedestrian-level,and the typical ground surface temperature,the main characteristics of summer outdoor thermal environment of teaching building cluster in hot and humid zone are obtained.The results show that the patio,overhead and porous pavement can reduce the pedestrian air temperature and WBGT effectively at summer daytime.And the function of the following design methods to improve the outdoor thermal comfort at the summer daytime has the order like overheadpatioporous pavementimporous pavementconcrete road.The WBGT at all measuring points at nighttime are almost the same.The test results are further used to verify the existing mathematical models of outdoor velocity and WBGT.The results show that the relative errors are within 6%.Then,the calculation values are in good agreement with the experimental values.

关 键 词：湿热地区 教学建筑 室外热环境 温度 湿度 

分 类 号：TU111.3[建筑科学—建筑理论]