空气焓值法制冷量测量的两种不确定度评定方法  

Two Kinds of Uncertainty Evaluation in the Air-enthalpy Method Measuring Cooling Capacity

作　　者：滕俊恒[1] 杭晨哲[1] 徐定华[1] 周雪芬[1] 杜洪钧[1] 

机构地区：[1]中国计量科学研究院,北京100013

出　　处：《计量学报》2011年第4期329-332,共4页Acta Metrologica Sinica

摘　　要：空气焓值法测量空调器制冷量是一种常用方法。由于计算公式复杂，测量不确定度的评定方法及相应的数学模型可以存在多种形式。根据空气焓值法测量制冷量的计算方法，建立了两种不确定度的数学分析模型，即用中间过程量表征的制冷量评定方法和用直接测试量表征的制冷量评定方法评定其测量不确定度，并结合lO次独立测量的数据，得到两种不确定度评定方法的计算结果，解析其差异所在。Air-enthalpy method is commonly used in measuring cooling capacity of the air conditioner. Some uncertainty evaluation methods for measurement and corresponding mathemalical models may exist because of the complex calculating formulas. Base on the formulas for calculating cooling capacity, the two kinds of mathematical models which indicated by intermediate variables and direct testing variables are established. With ten independent measurement data, the results of the two kinds uncertainty evaluation are obtained, and the differences between them are analyzed.

关 键 词：计量学 制冷量 不确定度 空气焓值法 中间过程量 直接测试量 

分 类 号：TB941[一般工业技术—计量学]