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采用热流计法对木框架外墙保温性能进行现场测试。将传热系数实测值与理论计算值进行了对比验证,分析判断了该构造类型木框架外墙在我国适用的热工区,并将其与常用建筑外墙保温性能进行了比较,以此为木框架外墙节能设计提供依据。结果表明:试验外墙实测和理论计算的平均传热系数值分别为0.442 W/(m2·K)和0.435W/(m2·K),可在我国热工区广泛应用,理论值作为设计依据具有可靠性;试验建筑胶合木结构外墙整体的综合传热系数为0.619 W/(m2·K),完全满足其所在夏热冬冷地区节能设计标准的限值要求;相比3种常用建筑外墙,试验外墙的保温性能优势显著,同时厚度最小,这不仅使材料消耗减少而且增大了居室空间。
Using heat flow meter method to test the thermal insulation performance of wood frame wall. The measured value of heat transfer coefficient and the theoretical calculation value are compared and verified, the structure of the type of wood frame wall analysis in our country for the thermal zone, and its thermal insulation properties of the common building wall were compared as Wood frame energy-saving wall design provides the basis. The results show that the measured heat transfer coefficient of the experimental wall and theoretical calculation are respectively 0.442 W / (m2 · K) and 0.435 W / (m2 · K), which can be widely used in the thermal engineering area in our country. The theoretical value is used as the design basis Which has the reliability. The comprehensive heat transfer coefficient of the external wall of the test building glued timber structure is 0.619 W / (m2 · K), which completely meets the limit requirements of the energy-saving design standards of the hot summer and cold winter area. Compared with the common buildings Exterior walls, test facades have significant thermal insulation benefits, with minimal thickness, which not only reduces material consumption but also increases room space.