装配式节能墙体设计及热工性能研究  

Design and Thermal Performance Study of Prefabricated Energy-saving Wall

作　　者：柯文涛 Ke Wentao(Fujian Wujian Construction Group Co.Ltd.,Quanzhou,Fujian 362001)

机构地区：[1]福建省五建建设集团有限公司,福建泉州362001

出　　处：《江西建材》2024年第10期325-327,共3页

摘　　要：为提升建筑墙体的保温性能,文中提出了四种装配式节能墙体设计方案,针对不同设计方案的温度、传热系数及导热系数进行对比分析,并基于此,确定节能效果最佳的墙体设计方案。结果表明,随着时间的增加,热箱墙体表面温度略微下降;冷箱墙体表面温度先快速降低后稳定。室外层竹基材料厚度为3 mm时,复合墙体传热系数为0.78 W/(m^(2)·K),导热系数为0.19 W/(m^(2)·K),热阻为1.89 m^(2)·K/W,当厚度增加至10 mm时,复合墙体传热系数降低17.9%,导热系数降低15.6%,热阻增加53.9%。综合节能效果、经济和安装难度等因素,确定最佳的装配式竹板节能墙体厚度为7 mm。In order to improve the thermal insulation performance of building walls,four kinds of prefabricated energy-saving wall design schemes are proposed in this paper.The temperature,heat transfer coefficient and thermal conductivity of different design schemes are compared and analyzed,and based on this,the best energy-saving wall design scheme is determined.The results show that the surface temperature of the hot box wall decreases slightly with the increase of time.The surface temperature of the cold box wall decreases rapidly and then stabilizes.When the thickness of outdoor bamboo base material is 3 mm,the heat transfer coefficient of the composite wall is 0.78 W/(m^(2)·K),the thermal conductivity is 0.19 W/(m^(2)·K),and the thermal resistance is 1.89 m^(2)·K/W.When the thickness is increased to 10 mm,the heat transfer coefficient and thermal conductivity of the composite wall are reduced by 17.9%and 15.6%.Thermal resistance increased by 53.9%.Considering the factors such as energy-saving effect,economy and installation difficulty,the best thickness of prefabricated bamboo board energy-saving wall is determined to be 7 mm.

关 键 词：装配式结构 墙体设计 节能效果 热工性能 导热系数 

分 类 号：TU551[建筑科学—建筑技术科学]