利用红外测温技术检测建筑围护结构的传热系数
Detecting heat transfer coefficient of building envelope with infrared radiation temperature measuring technology
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.
Abstract:
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 building 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.
Author: ZHUANG Jinxun GAO Chao ZHANG Jiuhong
作者单位: 辽宁科技大学 建筑与艺术设计学院,辽宁 鞍山,114051 长治清华机械厂,山西 长治,046012 沈阳建筑大学 建筑与城市规划学院,辽宁 沈阳,110168
刊 名 新型建筑材料 ISTICPKU
年,卷(期): 2017, 44(9)
分类号: TU111.4
在线出版日期: 2017年12月21日
基金项目: 辽宁科技大学实验教学改革及实验室建设项目