摘要
研究目前常用的建筑围护结构传热系数现场检测方法及其存在的问题,提出一种新的检测方法。根据围护结构在一维稳态传热条件下的传热学理论,推导出围护结构的传热系数与围护结构两侧的空气温度、内表面温度以及内表面换热阻的关系。通过与现有传热系数现场检测方法的对比以及检测结果的分析可知,利用红外测温技术检测建筑围护结构的传热系数是一种经济、方便、快捷、可靠的检测方法。
Study the present frequently-used heat transfer coefficient of building envelope in-situ detection method and its existing problems,propose a kind of new detection method. The relationship between the heat transfer coefficient of huilding envelope and the air temperature, internal surface temperature,as well as heat exchange resistance of internal surface on both sides of building envelope is derived according to the heat transfer theory of building envelope under one-dimensional steady-state heat transfer condition. Through the contrast detection with the existing heat transfer in-situ detection method and the analysis on the detection result, the heat transfer coefficient of building envelope with infrared thermometric technology is an economic, convenient, fast and reliable detection method.
出处
《新型建筑材料》
北大核心
2017年第9期134-137,共4页
New Building Materials
基金
辽宁科技大学实验教学改革及实验室建设项目(SYJG201745)
关键词
红外辐射
建筑围护结构
传热系数
建筑节能
infrared radiation,building envelope,heat transfer coefficient,building energy efficiency
