建筑绝热材料热湿物性参数测试重复性及再现性研究  

Measurement Repeatability and Reproducibility of Hygrothermal Properties of Building Insulation Materials

作　　者：杨雯 文均[2] 张冠杰 周成彦 YANG Wen;WEN Jun;ZHANG Guanjie;ZHOU Chengyan(State Key Laboratory of Green Building,Xi’an 710055,China;School of Architecture,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]绿色建筑全国重点实验室,西安710055 [2]西安建筑科技大学建筑学院,西安710055

出　　处：《建筑节能（中英文）》2024年第12期45-52,共8页Building Energy Efficiency

基　　金：国家自然科学基金重点项目(52338004);国家自然科学基金青年科学基金项目(52308114);陕西省自然科学基础研究计划一般项目(青年)(2023-JC-QN-0546);陕西高校青年创新团队资助项目(2022-2025)。

摘　　要：认识测试误差是建立参数数据库、提高建筑性能模拟工具精度的前提。为了验证相关实验结果的可信度,对EPS、XPS、PUR、发泡水泥四种建筑绝热材料开展了为期一年的防护热板法实验、瞬态平面热源法实验、毛细吸水及真空饱和实验,计算获取了多组热湿物性参数的测试重复性及再现性误差。结果表明,两种导热系数实验及真空饱和实验均具有良好的可重复性,在适当控制下测试本身是值得信赖的;湿物性参数实验误差整体大于导热系数实验误差,尤其是毛细吸水实验;产生误差的主要原因不只是测试原理本身,还包括实验环境控制、仪器设备精度及人员操作细节。Understanding the error of parameter test value is the premise of establishing parameter database and improving the accuracy of building performance simulation tool.This paper carried out one-year experiments on the guarded hot plate apparatus,transient plane heat source method,capillary absorption and vacuum saturation of four kinds of building insulation materials,including EPS,XPS,PUR and foam cement,and calculated and obtained the repeatability and reproducibility errors of multiple sets of hygrothermal properties.The results show that the two thermal conductivity experiments and vacuum saturation experiments have good repeatability,and the test itself is reliable under proper control.The experimental error of hygric property is larger than that of thermal conductivity,especially the capillary absorption experiment.The main reason for the error is not only the test principle itself,but also the experimental environment control,the accuracy of the instrument and equipment and the details of the personnel operation.

关 键 词：建筑绝热材料 热湿物性参数 测试误差 实验再现 

分 类 号：TU111[建筑科学—建筑理论] TU5