送风方式对幕墙保温性能检测装置风场均匀性及检测精度的影响  

Influence of Air Supply Methods on the Uniformity and Detection Accuracy of the Wind Field of the Curtain Wall Insulation Performance Testing Device

作　　者：袁涛 刘月莉 牛璞 王营 YUAN Tao;LIU Yueli;NIU Pu;WANG Ying(China Academy of Building Research,Beijing 100013,China;Zhejiang Construction Engineering Quality Inspection Station Co.,Ltd.,Hangzhou 310012,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]浙江省建设工程质量检验站有限公司,杭州310012

出　　处：《建筑节能（中英文）》2024年第1期124-129,148,共7页Building Energy Efficiency

摘　　要：以建筑幕墙保温性能检测装置热箱环境为研究对象,利用流体动力学软件建立两种热箱模型,研究在国家标准《建筑幕墙保温性能分级及检测方法》修订过程中,热箱中循环风机不同送风方式对试件附近风场均匀性的影响。通过对比模拟结果,发现在修订后的标准装置中,优化设备放置位置且当循环风机的出口风速为2.0 m/s时,建筑幕墙试件周围的气流组织更佳,标准试验装置热箱中产生的风流场更加均匀,对表面换热能力的影响较小,提高了建筑幕墙保温性能检测装置的检测精度。提出在装置放置位置和适宜的风速条件方面能够实现更高检测精度,为提高建筑幕墙保温性能的检测准确性以及优化实验系统设备的安装位置提供了切实可行的方案。The hot box environment of the thermal insulation performance testing device for building curtain walls is researched.Hot box models are established using fluid dynamics software.The influence of different air supply modes of circulating fans in the hot box is studied on the uniformity of the wind field near the specimen during the revision of the national standard “Graduation and Test Method for Thermal Insulating Properties of Curtain Walls”.By comparing the simulation results,it is found that in the revised standard device,when the equipment placement position is optimized and the outlet wind velocity of the circulating fan is 2.0 m/s,the airflow organization around the building curtain wall specimen is better,the air flow field generated in the hot box of the standard test device is more uniform,and the impact on the surface heat exchange capacity is small,and the detection accuracy of the building curtain wall insulation performance detection device is improved.The higher detection accuracy can be achieved in terms of device placement and suitable wind speed conditions,which provides a practical solution for improving the detection accuracy of building curtain wall insulation performance and optimizing the installation position of experimental system equipment.

关 键 词：检测装置 数值模拟 孔板送风 均匀性 

分 类 号：TU111[建筑科学—建筑理论]