摘要
热桥是节能烧结砌块使用过程中最容易出现的问题,保温材料常用于热桥部位的处理以减少热损失,为研究保温材料种类和厚度对节能烧结砌块热桥的影响规律,采用Ansys软件定量计算了聚氨酯(PU)、模塑聚苯板(EPS)和保温抹面砂浆在10 mm^40 mm范围内对模型温度分布、热量传递的变化规律,结果表明:不对热桥进行处理时,在内墙与构造柱相交的地方,热流量最大,随着保温材料导热系数的增加,保温层与热桥柱接触的温度逐渐增加,随保温材料厚度的增加,保温层和热桥柱接触点的温度逐渐下降,但下降幅度逐渐减小,其综合平衡厚度为20 mm。
Heat bridge is a difficult problem in the use of fired brick, heat insulating materials are usuallyused in the thermal bridge to reduce heat loss. The influence of heat insulating material＇s type and thicknesson the energy saving fired block thermal bridge is studied by Analyst software. The results show that the heatflow at the intersection of inner wall and constructional column without heat bridge treatment is maximum.With increasing the insulating material＇s conductivity, the temperature of the contact point between theinsulating layer and the thermal bridge column gradually increases; With increasing the thickness of heatinsulating material, the temperature gradually decreases, but the decline rate gradually reduces, the overallbalance of the thickness is 20 mm.
出处
《砖瓦》
2015年第2期6-9,共4页
Brick-tile
基金
国家科技支撑计划项目"2011BAJ04B01"
关键词
节能烧结砌块
热桥
保温
模型
计算
energy saving fired block
thermal insulation
thermal bridge
calculation model
