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建筑围护结构的热物性是现代绿色建筑考核和节能诊断分析中的一项重要指标。现有的测量数据处理方法主要包括算数平均法和动态分析法,前者要求在平均温差较大的条件下计算,对应测试条件较高、便捷性较差以及精度受限;而后者缺乏完善的误差评定的方法。本文从动态分析法的时间序列模型出发,考虑热流和壁面温度测量同时存在误差的情况,采用结构化总体最小二乘的方法对测量结果进行分析处理,给出更完善的热阻不确定度评定方法。
Thermal properties of building envelope structure is an important indicator of modern green building assessment and energy-saving diagnostic analysis. Existing measurement data processing methods include arithmetic average method and dynamic analysis method, the former requires that the average temperature difference is larger under the conditions of computing, corresponding to higher test conditions, less convenient and accuracy is limited; the latter lack of perfect error Assessment method. In this paper, starting from the time series model of dynamic analysis method, taking into account the simultaneous existence of errors in the heat flow and wall temperature measurement, the structure of the total least squares method is used to analyze the measurement results to give a more complete thermal resistance uncertainty assessment method.