中空玻璃传热系数测量不确定度评定

玻璃的传热系数表征玻璃热量传递能力的大小。目前的新型建筑中使用大面积的幕墙玻璃,因此,玻璃传热系数的大小直接影响建筑使用过程中的节能效果。根据JJF1059.1-2012《测量不确定评定与表示》,建立传热系数计算模型,对中空玻璃的传热系数测量过程的各项不确定性因素进行分析,并对各类因素影响作用进行量化计算,得出了玻璃传热系数的测量不确定度评定结果。

Uncertainty Evaluation in Measurement of Heat Transfer Coefficient of Insulating Glass

The heat transfer coefficient of the glass characterizes the glass heat transfer capacity.The heat transfer coefficient directly affects the energy saving effect in the process of building operation.According to the JJF1059.1-2012 "Evaluation and Expression of Uncertainty in Measurement", this paper analyzes all uncertainty factors of glass coefficient of heat transfer, and determines the main sources of uncertainty, the uncertainty components are calculated.The evaluation results of uncertainty in measurement of glass heat transfer coefficient are obtained.