摘要
制作两个相同的模拟实体建筑的混凝土模型,采用控制变量的方法,在一个模型的围护结构上布置100%覆盖率的屋顶绿化和50%覆盖率的墙体绿化作为实验模型,另一个不布置绿化作为对照模型,采集两个模型内外部的温度数据。计算分析表明,2010年10月～2011年3月间,实验模型的平均积温要比对照模型的高1.31,绿色植被能够有效降低围护结构的传热系数,提高围护结构的热阻。经过计算,本实验中采用的绿化方式能够提高围护结构的保温性能约10%。
Two same concrete experimental models are made to simulate solid buildings with the control variable method,by making 100% coverage of roof greening and 50% coverage of wall greening on the enclosure of one model,and taking the other model as the reference without arrangement of greening.Then collect the data of the temperatures inside and outside the models.The analysis shows that,during the period from October,2010 to March,2011,the average accumulated temperature of the test model is 1.31 ℃？h higher than that of the control model,and the green plantations can effectively reduce the heat transfer coefficient of enclosure structure,and improve the thermal resistance of the enclosure.The greening method used in this experiment can improve the thermal insulation of the enclosure by about 10%.
出处
《建筑节能》
CAS
2011年第8期54-59,共6页
BUILDING ENERGY EFFICIENCY
关键词
围护结构
建筑节能
屋顶绿化
墙体绿化
传热系数
enclosure of building
building energy efficiency
roof greening
wall greening
heat transfer coefficient
