南昌地区保温材料含湿量与导热系数的修正研究  

Study on modification of moisture content and thermal conductivity of thermal insulation materials in Nanchang area

作　　者：彭小云[1] 翁达福 PENG Xiaoyun;WENG Dafu(School of Civil Engineering and Architecture of East China Jiaotong University,Nanchang 330013,China;Xiamen Academy of Building Research Group,Xiamen 361004,China)

机构地区：[1]华东交通大学土建学院,江西南昌330013 [2]厦门市建筑科学研究院集团有限公司,福建厦门361004

出　　处：《新型建筑材料》2019年第1期75-78,共4页New Building Materials

基　　金：国家自然科学基金项目(51268011)

摘　　要：空气湿度对围护结构中保温材料的含湿量会产生较大影响,而保温材料的含湿量直接影响其导热系数,即一个地区的相对湿度会影响到围护结构的隔热、保温性能。主要探讨了保温材料导热性能与相对湿度的定量关系,建立数学模型拟合并校验了南昌地区常用保温材料的导热系数。计算了夏季条件下,南昌地区3种保温材料导热系数的修正系数,研究结果可为建筑节能的设计和研究提供参考。Air humidity has a great influence on the moisture content of the insulation material in the envelope structure,and the moisture content of the insulation material directly affects its thermal conductivity, that is,the relative humidity of a region will affect the insulation and thermal insulation performance of the envelope structure. In this paper,the quantitative relationship between thermal conductivity and relative humidity of thermal insulation materials is discussed,and a mathematical model is established to check the thermal conductivity of thermal insulation materials commonly used in Nanchang area. The correction coefficient of thermal conductivity of three thermal insulation materials in Nanchang area is calculated in summer. The results can be helpful for the design and research of building energy conservation.

关 键 词：南昌地区 保温材料 含湿量 导热系数 修正系数 

分 类 号：TU111.4[建筑科学—建筑理论]