基于ENVI-met模拟的屋顶绿化热环境影响

编号 lyqk008395

中文标题 基于ENVI-met模拟的屋顶绿化热环境影响

作者 董楠楠  吴静 

作者单位 1. 同济大学建筑与城市规划学院 上海 200092;
2. 上海冠茵环境生态科技有限公司 上海 200092

期刊名称 中国城市林业 

年份 2020 

卷号 18

期号 4

栏目名称 研究论文 

中文摘要 文章以同济大学四平路校区为研究对象，采用ENVI-met 4.4.2模拟4种方案（无绿化、地面绿化、屋顶绿化、地面绿化与屋顶绿化的组合绿化）时校园内温度分布特征，对比分析有地面绿化和无地面绿化情况下，7：00、12：00、20：00、1：00时屋顶绿化对室外行人高度（1.5m）和屋面高度（12.5m、17.5m）的气温影响。结果表明：1）校园无地面绿化时，屋顶绿化的降温效果较为微弱；2）校园有地面绿化时，屋顶绿化对环境气温的影响明显增强，尤其是行人高度的温度变化明显增大，且随着高度增加，影响逐渐减弱；3）校园有地面绿化时，12：00时屋顶绿化对建筑较少的开放区域降温效果明显好于建筑密度大的区域，而7：00、20：00和1：00时开放区域会出现升温现象。屋顶绿化除增加绿化总量外，也增加了绿色空间的连接性，有利于形成联系更为紧密的绿色空间网络，提高开放空间的热舒适性。

关键词 热环境  ENVI-met模拟  屋顶绿化 

基金项目 德国联邦教育与研究部（BMBF）中德联合研究项目中德超大城市韧性发展模式下的绿色基础设施规划生态服务系统应用；自然资源部大都市区国土空间生态修复工程技术创新中心课题；城市更新区域三维数字模型技术研究及应用示范（19DZ1202300）

英文标题 Thermal Environment Effects of Green Roofs Based on ENVI-met Simulation

作者英文名 Dong Nannan, Wu Jing

单位英文名 1. College of Architecture and Urban Planning, Tongji University, Shanghai 200092, China;
2. Shanghai Guanyin Environmental Technology Co., Ltd., Shanghai 200092, China

英文摘要 Taking the Siping Road Campus of Tongji University as the research object, the paper simulates the temperature distribution characteristics in the campus using ENVI-met 4.4.2 under four scenarios (no greening, ground greening, roof greening, and both ground and roof greening). The effects of roof greening at the outdoor pedestrian height (1.5 m) and roof height (12.5 m and 17.5 m) on temperature at 7:00 am,12:00 am, 20:00 pm and 1:00 am under the scenarios of having ground greening and having no ground greening are compared and analyzed. The results find that:1) The cooling effect of roof green is not obvious when ground greening is absent; 2) In the case that there is ground greening, roof green has enhanced influence on the ambient temperature, especially the temperature at outdoor pedestrian height which changes obviously, and the influence is gradually weak with the increase of height; and 3) When there is ground greening in campus, the cooling effect of green roof on the open area with less buildings at 12:00 is significantly better than that in the area with high building density, while the temperature of the open area will go up at 7:00 am, 20:00 pm and 1:00 am. In addition to increasing the total amount of greening, roof greening also increases the connectivity of green spaces, which is conducive to the formation of a more closely connected green space network and improve the thermal comfort of open spaces.

英文关键词 thermal environment;ENVI-met simulation;roof greening

起始页码 61

截止页码 66

投稿时间 2019/8/27

作者简介 董楠楠(1975-),男,博士,副教授,研究方向为风景园林技术创新及其性能化设计。E-mail:dongnannan@tongji.edu.cn

DOI 10.12169/zgcsly.2019.08.27.0001

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