定频房间空调器APF的不确定度评定方法研究  

Research on uncertainty evaluation method of APF for fixed frequency room air conditioner

作　　者：马安娜 吴晓丽 赵玲倩 高文琪 MA Anna;WU Xiaoli;ZHAO Lingqian;GAO Wenqi(CHEARI(Beijing)Certification&Testing Co.,Ltd.Beijing 100176)

机构地区：[1]中家院(北京)检测认证有限公司,北京100176

出　　处：《家电科技》2021年第6期88-93,共6页Journal of Appliance Science & Technology

摘　　要：新版房间空调器的能效标准GB 21455-2019《房间空气调节器能效限定值及能效等级》中将定频热泵型房间空调器能效等级评价指标调整为全年能源消耗效率APF值,为了提高检测质量,评定APF的不确定度显得尤为重要。通过空气焓值法对空调器性能进行测试,对APF的计算、测量以及不确定度的评估等进行了分析,得到APF的相对扩展不确定度为1.96%,其中额定制冷量引入的不确定度分量最大,占比达75.11%。以额定制冷工况为例,对额定制冷量影响较大的测量参数为室内侧进风湿球温度和室内侧出风湿球温度,不确定度分量占比分别达51.99%和36.42%。According to the standard GB 21455-2019 "Minimum allowable values of the energy efficiency and energy efficiency grades for room air conditioners", the energy efficiency rating index for fixed frequency heat pump type room air conditioners is APF(Annual Performance Factor).In order to improve the test quality, it is particularly important to evaluate the uncertainty of the APF. The air enthalpy method was used to test the performance of the air conditioners, and the calculation, measurement and uncertainty evaluation of APF were analyzed, and the relative expanded uncertainty of APF was 1.96%. Among them, and the uncertainty component introduced by the rated cooling capacity was the largest, accounting for 75.11%. Taking the rated cooling conditions as an example, the measurement parameters that had a greater impact on the rated cooling capacity were the indoor side inlet air bulb temperature and the indoor side outlet rheumatic bulb temperature, and the uncertainty components accounted for 51.99% and 36.42%, respectively.

关 键 词：空气焓值法 灵敏度系数 APF 不确定度 

分 类 号：TB6[一般工业技术—制冷工程]