The paper introduces the features of the heat transfer coefficient of the enclosure strucutre, the equipment, the principle and detection process of the site detection with the temperature-controlled box and heat flow meter method, analyzes the factors affecting the accuracy of the heat transfer coefficient in the detection process, and points out respective measures.%介绍了控温箱-热流计法现场检测围护结构传热系数的特点、仪器设备、原理和检测过程，同时对检测过程中影响传热系数检测的准确度因素进行了分析，并提出了相应的措施。
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