风机盘管机组供冷量和供热量测量不确定度简化计算方法  

Simplified calculation method of measurement uncertainty in cooling&heating capacity of fan coil unit

作　　者：戴世龙 单磊 陆婷婷 徐军 Dai Shilong;Shan Lei;Lu Tingting;Xu Jun(Hefei General Machinery Research Institute Co.,Ltd.)

机构地区：[1]合肥通用机械研究院有限公司

出　　处：《制冷与空调》2021年第11期56-60,55,共6页Refrigeration and Air-Conditioning

摘　　要：风机盘管机组供冷量和供热量的测量不确定度受随机效应导致的A类不确定度和测试系统带来的B类不确定度的共同影响,这2类不确定度分量可分解为干球温度、湿球温度、出风静压、喷嘴前后压差、喷嘴喉部直径、进水温度、出水温度、输入功率等参数不确定度分量。本文研究不确定度计算过程中这些参数对最终不确定度的影响,根据每个不确定度分量的权重,按照不确定度的计算要求,找出不确定度计算简化条件,并提出简化计算模型,为试验研究提供准确、简便的计算方法。The measurement uncertainty in cooling&heating capacity of fan coil unit is affected by the combination of class A uncertainty caused by the random effect and class B uncertainty caused by the test system.Each kind of uncertainty components could decompose into dif-ferent uncertainty parts such as dry bulb temperature,wet bulb temperature,outlet static pressure,pressure difference between front and rear nozzle,nozzle throat diameter,inlet water temperature,outlet water temperature,input power and other measurement parameters.The influence of these calculation parameters during the measurement process on the final uncertainty is studied.According to the influence weight of each uncertainty component and requirement of uncertainty calculation,the simplified calculation conditions of uncertainty are found out and the simplified calculation models are proposed,which can supply accurate and simple method for experimental investigation.

关 键 词：风机盘管机组 供冷量 供热量 不确定度 

分 类 号：TB6[一般工业技术—制冷工程]