基质层厚度对湿热地区种植屋面隔热性能影响研究  

Influence of Substrate Thickness on Thermal Insulation Performance of Planted Roofs in Hot and Humid Areas

作　　者：陈志扩 王志勇[1] 刘畅荣[1] 宋子涵 王玉蝶 CHEN Zhikuo;WANG Zhiyong;LIU Changrong;SONG Zihan;WANG Yudie(College of Civil Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学土木工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2023年第3期21-26,共6页Journal of Hunan University of Technology

基　　金：湖南省自然科学基金资助项目(2021JJ50007);国家级大学生创新创业训练计划基金资助项目(S202111535016);湖南省大学生创新创业训练计划基金资助项目(湘教通[2020]191号-3068)。

摘　　要：为研究基质层厚度对湿热地区容器式种植屋面隔热性能的影响规律,采用Energy Plus软件模拟裸屋面和3种基质层厚度(100, 200, 300 mm)种植屋面的内外表面温度全年变化情况。结果表明:与裸屋面相比,种植屋面的内表面温度波动不大,且内表面温度始终略低于外表面温度,体现了种植屋面的热阻效应。对于100 mm厚度的种植屋面,在夏季其内表面平均温度可降低15℃;在过渡季节,当室外空气干球温度高于20℃时其内表面平均温度降低12.5℃,而当室外空气干球温度低于20℃时,其内表面平均温度升高5℃;在冬季,其内表面平均温度可升高5℃。3种厚度的种植屋面,其内外表面温度变化规律基本相同,基质层厚度每增加100 mm,内表面平均温度在夏季可降低2℃,在冬季则升高1℃。In view of an inquiry into the influence of substrate layer thickness on thermal insulation performance of container planted roofs in hot and humid areas,by using Energy Plus software,a simulation and analysis have been made of the annual changes of internal and external surface temperatures of bare roofs and planted roofs with three substrate layer thicknesses(100,200,300 mm).The results show that,compared with bare roofs,the temperature of the inner surface of planted roofs is characterized with a little fluctuation,with the inner surface temperature constantly slightly lower than the outer surface temperature,thus verifying the thermal resistance effect of planted roofs.For planted roofs with a thickness of 100 mm,the average temperature of its inner surface can be reduced by 15℃in summer;the average temperature of its inner surface decreases by 12.5℃,and increases by 5℃when the outdoor dry-bulb temperature is lower than 20℃in the transition season.In winter,the average temperature of its inner surface increases by 5℃.The change rule of the internal and external surface temperature of the three kinds of planted roofs remains basically the same,with the average temperature of the internal surface reducing by 2℃in summer while increasing by 1℃in winter when the thickness of the substrate layer increases by 100 mm.

关 键 词：容器式种植屋面 基质层 隔热性能 数值模拟 

分 类 号：TU119[建筑科学—建筑理论]