房间空调器空气焓值法测量不确定度简化计算研究  

Simplified Calculation of Uncertainty in Room Air-conditioner Measurement with Air Enthalpy Test Method

作　　者：戴世龙[1] 王敏[1] 齐淑芳[1] 王博[1] 李妍[1] 

机构地区：[1]合肥通用机械研究院,合肥230031

出　　处：《制冷学报》2010年第6期51-55,62,共6页Journal of Refrigeration

基　　金：国家科技支撑计划项目(2006BAK04A22)~~

摘　　要：房间空调器测试装置是测量房间空调器制冷量、功耗等参数的检测设备,根据CNAS规定,检验机构在提供检验结果的同时,需要提供检验结果不确定度。房间空调器测量空气焓值法是被普遍使用的二种测量方法之一,其测试不确定度是受随机效应导致A类不确定和测试系统带来的B类不确定二大分量共同影响,每大类不确定度分量又分解为干球温度、湿球温度、出风静压、喷嘴前后压差、功率等众多测量参数不确定度分量。本文对不确定度计算中,各个测量参数的对最终不确定值的影响进行了研究,根据每个不确定度分量影响的权重,按照不确定度的计算要求,找出简化不确定度计算条件,和提出了简化计算模型。The equipment for testing room air-conditioners is used to measure the parameters such as cooling capacity and power consumption.According to the stipulation in CNAS,the testing organization needs to provide the uncertainty of the testing results as well as the testing results.The air enthalpy testing method is one of the two typical testing methods for room air-conditioners,and its uncertainty is influenced by both Class A caused by random effect and Class-B caused by the testing system.Uncertainty fraction for each Class can be divided into uncertainty fractions of several measurement parameters.In this study,the influence of uncertainty fractions of various measurement parameters on the final uncertainty value was explored.From the proportion of the influence of each fraction,the calculation condition was determined and a simplified calculation model for the uncertainty was presented.

关 键 词：热工学 仪器仪表技术 空气焓值法 不确定度 权重 简化计算 

分 类 号：TB663[一般工业技术—制冷工程] TM925.1[电气工程—电力电子与电力传动]