围护绿化对木结构建筑隔热、保温性能的影响  

Thermal Performance and Energy Analysis on Enclosure Greening of Wood Structure Buildings

作　　者：张宇[1] 裴陆杰[1] 

机构地区：[1]同济大学土木工程学院,上海200092

出　　处：《建筑节能》2013年第5期48-53,共6页BUILDING ENERGY EFFICIENCY

摘　　要：采用缩尺模型实验的研究方法模拟木结构建筑,制作了两个1:10木质模型箱,以围护绿化作为控制变量,分为实验箱与对照箱,采集夏、冬季不同天气状况下模型箱的内外温度数据,通过比较实验箱与对照箱的内部温度和围护结构热工参数来研究围护绿化对模型箱隔热、保温性能的影响。分析表明,在夏、冬季典型天气下围护绿化能较大提升模型箱的隔热、保温性能,其中夏季对隔热性能的提升较冬季对保温性能的提升更为显著,此外围护绿化受天气状况的影响较大。最后根据围护绿化的附加当量热阻进行建筑原型分析,对实际木结构建筑围护绿化后的节能效果进行评估,研究表明,冬季时,模型箱围护绿化的附加当量热阻约为0.36 m2.K/W,能使模型箱保温性能提高71.7%,若实际木结构建筑采用本实验中所采用的绿化形式和绿化率,其冬季保温性能可提升12.5%左右,夏季则更为显著。Imitating the actual wood structure buildings,two same wooden experimental models are made in a certain proportion（1：10）.Set building greening as the control variable,by making 100% coverage of roof greening and 100% coverage of wall greening on the enclosure of one model,and taking the other model as the reference without arrangement of greening.Temperatures inside and outside the models were collected to analyze thermal performance and building energy saving.The analysis shows that building greening can improve building＇s heatinsulating performance,and reduce building＇s energy consumption by about 12.5% in the winter,and the solution will be more significant in the summer.But the effect of building greening was influenced by weather conditions,for example,in cloudy weather,building greening has little effect on building’s energy saving.Additional equivalent thermal resistance of building greening was about 0.36（m2.K）/W.

关 键 词：木结构 围护绿化 隔热保温 热工参数 附加当量热阻 

分 类 号：TU111.4[建筑科学—建筑理论]