摘要
随着我国对于建筑节能工作的进一步开展,建筑节能率不断地提高,对于外墙传热系数的要求使得建筑的保温层厚度不断提升,随之带来的建筑安全隐患使得高层建筑的外墙保温成为一大难题。STP真空绝热板是一种新型的无机保温材料,其材料具有极低导热系数的同时还具有板体超薄等优点,可以完美地适应高层建筑的热工需求。针对STP真空绝热板在施工过程中板缝的存在所造成的热桥问题进行了研究,计算了板缝对墙体传热系数的影响,发现随着板缝宽度的增大,其对于墙体传热系数的影响值几乎是呈线性增加的。当板缝宽度达到规范所规定的最大限制20 mm时,其对于墙体传热系数的影响可高达40%。在此基础上,对板缝影响下材料的导热系数进行了修正系数的计算,为日后研究人员的建筑热工计算提供参考。
With the further development of building energy-saving work in China, the building energy-saving rate continues to increase. The requirements for the heat transfer coefficient of the external wall have made the thickness of the building’s insulation layer continue to increase. Become a big problem. Super Thin Panel(STP) is a new type of non-polar insulation material. Its material has the advantages of extremely low thermal conductivity and ultra-thin board, which can perfectly meet the thermal requirements of high-rise buildings. The thermal bridge problem caused by the existence of slab slot in the construction of Super Thin Panel(STP) is studied, and the influence of slab slot on the heat transfer coefficient of the wall is calculated. The influence value of the body heat transfer coefficient increases almost linearly. When the width of the slab slot reaches the maximum limit of 20 mm specified by the specification, its influence on the heat transfer coefficient of the wall can be as high as 40%. On this basis, the thermal conductivity of the material under the influence of the slab slot is calculated with a correction coefficient, which provides a reference for the researcher’s thermal calculation of the building.
作者
韩雪琪
闫增峰
柳成辉
HAN Xue-qi;YAN Zeng-feng;LIU Cheng-hui(School of Architecture,Xi'an University of Architecture and Technology,Xi'an 710055,China)
出处
《建筑节能（中英文）》
CAS
2022年第7期59-63,135,共6页
Building Energy Efficiency
基金
陕西省居住建筑节能设计研究(ZSZB19-110Z)
陕西省农村地区新型墙材及建筑节能应用技术应用研究(2016-K147)。
关键词
STP真空绝热板
板缝
墙体传热
热工计算
Super Thin Panel(STP)
slab slot
wall heat transfer
thermal calculation
