GB 21455—2019中低温制冷工况参数实测值与计算值对能效评定的影响  

Influence of measured and calculated values on energy efficiency evaluation of low temperature refrigeration condition in GB 21455-2019

作　　者：王奎 刘汉阳 杨雷 杜启行 孔繁海 邓林涓 Wang Kui;Liu Hanyang;Yang Lei;Du Qihang;Kong Fanhai;Deng Linjuan(Shandong Institute of Metrology and Science)

机构地区：[1]山东省计量科学研究院

出　　处：《制冷与空调》2022年第1期29-32,共4页Refrigeration and Air-Conditioning

摘　　要：根据GB 21455—2019《房间空气调节器能效限定值及能效等级》,转速可控型空调器低温制冷工况的制冷量和消耗功率为可选试验,这使得全年能源消耗效率(APF)的评定的一致性较差。本文通过对低温制冷工况的制冷量与消耗功率计算公式的理论分析结合实测发现,转速可控型空调器低温制冷工况采用实测所得APF大于采用计算所得APF,因此建议低温制冷工况统一使用测试值,这样才能确保转速可控型空调器能效评价的一致性。According to GB 21455-2019 Minimum allowable values of the energy efficiency and energy efficiency grades for room air conditioners,the cooling capacity and power input of variable frequency air conditioners under low temperature refrigeration condition can be obtained by optional tests,which leads to poor consistency of annual performance factor(APF).Through the theoretical analysis on the calculation formulas of cooling capacity and power input combined with tests,it is found that the APF of variable frequency air conditioner obtained by using the measured value is higher than that obtained by using the calculated value under low temperature refrigeration condition.Therefore,it is suggested that the test values should be used for low temperature refrigeration condition,so as to ensure the consistency of energy efficiency evaluation.

关 键 词：空调器 能效 低温制冷 实测值 计算值 全年能源消耗效率 

分 类 号：TB6[一般工业技术—制冷工程]