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
Key words
detection device/numerical simulation/orifice plate air supply/uniformity
维普
万方数据