R-454B与R-410A在北美定频管道机中的应用对比研究  

Comparative study of R-454B and R-410A in air handler unit

作　　者：戴子晴 杨文钧 杜超 赵凯强[2,3] 邓璠 单体运 DAI Ziqing;YANG Wenjun;DU Chao;ZHAO Kaiqiang;DENG Fan;SHAN Tiyun(Qingdao Haier Technology Co.,Ltd.,Qingdao 266100;Qingdao Haier air conditioner Co.,Ltd.,Qingdao 266100;National Engineering Research Center of Digital Home Networking,Qingdao 266100)

机构地区：[1]青岛海尔科技有限公司,山东青岛266100 [2]青岛海尔空调器有限总公司,山东青岛266100 [3]数字家庭网络国家工程研究中心,山东青岛266100

出　　处：《家电科技》2024年第5期64-67,72,共5页Journal of Appliance Science & Technology

摘　　要：通过实验对比研究了R-410A和R-454B在管道机中的最优充注量及二者在Afull和Bfull工况下各性能参数的差异,并分析了在管道机中利用R-454B批量替换R-410A的可行性。结果表明:R-410A和R-454B最优充注量分别为3 kg和3.65 kg。与R-410A相比,R-454B在Afull和Bfull工况下能力分别降低2.22%和2.64%,EER2分别提升2.76%和1.41%,排气温度分别降低3.9℃和4.7℃,回气温度分别降低6.0℃和5.2℃,冷凝压力分别降低6.35%和5.70%,蒸发压力分别降低2.10%和2.14%。说明R-454B基本可满足目前R-410A系统的能力能效要求,且R-454B对系统部件高温保护要求和强度要求均低于R-410A,R-454B可直接使用目前R-410A的系统,为管道机批量切换制冷剂做出参考。The optimal charge amounts of R-410A and R-454B in Air Handler Unit(AHU)were compared through experimental studies,and the differences in various performance parameters under Afull and Bfull conditions were analyzed.The feasibility of replacing R-410A with R-454B in AHU was also assessed.The results indicated that the optimal charge amounts for R-410A and R-454B are 3 kg and 3.65 kg,respectively.Compared to R-410A,R-454B showed a capacity reduction of 2.22%and 2.64%under Afull and Bfull conditions,respectively,with an EER2 increase of 2.76%and 1.41%.Additionally,the discharge temperature decreased by 3.9°C and 4.7°C,the suction temperature decreased by 6.0°C and 5.2°C,the condensing pressure decreased by 6.35%and 5.70%,and the evaporating pressure decreased by 2.10%and 2.14%under the same conditions.These results suggest that R-454B can generally meet the capacity and energy efficiency requirements of current R-410A systems.Moreover,R-454B imposes lower high-temperature protection and strength requirements on system components compared to R-410A,indicating that R-454B can be directly used in existing R-410A systems,a reference for the mass transition of refrigerants in AHU was provided.

关 键 词：R-410A R-454B GWP 性能 制冷剂 EER2 

分 类 号：TM925[电气工程—电力电子与电力传动] TB6[一般工业技术—制冷工程]