| 王秋实， 王芳， 张楠， 韩玮， 陈夏辉， 王智基， 凌广， 唐剑宇.R1234yf/R134a混合工质应用于汽车热泵系统的可行性研究[J].轻工机械,2019,37(5):13-18 |
| R1234yf/R134a混合工质应用于汽车热泵系统的可行性研究 |
| Feasibility Study on Automotive Heat Pump System Using R1234yf/R134a Mixed Refrigerant |
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| DOI：10.3969/j.issn.1005 2895.2019.05.003 |
| 中文关键词: 热泵空调系统 R1234yf/R134a混合工质 制冷剂R134a REFPROP 9.0软件 环境性能 能效比 |
| 英文关键词:automotive air conditioning heat pump system R1234yf/R134a mixed refrigerant R134a REFPROP 9.0 environmental properties COP（coefficient of performance） |
| 基金项目:上海市大学生创新创业训练计划项目(SH2018011)。 |
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| 中文摘要: |
| 针对汽车空调广泛使用的制冷剂R134a存在严重的环境问题，课题组提出将2种不同混合比例的R1234yf/R134a混合工质应用在汽车热泵空调系统中，并通过实验对比分析了不同工况下R1234yf替代R134a的可行性。通过REFPROP 9.0分析了混合工质及R134a的环境性能和热力学性质，理论上表明混合工质可替代R134a；通过搭建汽车热泵空调试验台在不同的制冷、制热工况下进行实验，并得出结论：在各个工况下，混合工质的排气温度均低于R134a，排气压力差别不大；制冷量、制热量方面，混合工质与R134a相差很小；另外，由于混合工质对压缩机功耗的要求更高，因而混合工质系统的能效比值CCOP略低于R134a系统，但差值不超过7%，在可接受范围内。因此，R1234yf/R134a混合工质具有替代R134a应用于汽车热泵空调系统中的可行性。 |
| 英文摘要: |
| Aiming at the serious environmental problems caused by the widely use of R134a in automotive air conditioners, the application of two different mixing ratios of R1234yf/R134a mixed refrigerant in automotive heat pump air conditioning system was proposed. The feasibility of replacing R134a with R1234yf under different working conditions was analyzed. The environmental properties and thermodynamic properties of the mixed refrigerants and R134a were analyzed by REFPROP 9.0. It is theoretically shown that the mixed refrigerant have the feasibility of replacing R134a. By setting up the vehicle heat pump air conditioning test bench, the experiments were carried out under different cooling and heating conditions. The experimental results show that the exhaust temperatures of the refrigerant mixture are lower than that of R134a under various working conditions, and the exhaust pressure is not much different. In terms of cooling capacity and heating capacity, the mixed refrigerants have a small difference from R134a. In addition, since the mixed refrigerant requires higher of the power consumption of the compressor, the CCOP values of the mixed refrigerant systems are slightly lower than that of the R134a system, but the difference is less than 7%, which is within an acceptable range. Therefore, the R1234yf/R134a mixed refrigerant has the feasibility to be used as an alternative to R134a in automotive heat pump air conditioning systems. |
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