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Experimental performance comparison of R1234yf and R134a automobile air conditioning systems employing a variable capacity compressor
参考中译:采用变容压缩机的R1234yf和R134a汽车空调系统的性能比较


          

刊名：International Journal of Vehicle Design
作者：Erkutay Tasdemirci（TUSAS-Kazan Vocational School, Gazi University）
Ertan Alptekin（Department of Automotive Engineering, Kocaeli University）
Murat Hosoz（Department of Automotive Engineering, Kocaeli University）
刊号：873LD068
ISSN：0143-3369
出版年：2022
年卷期：2022, vol.90, no.1/4
页码：1-18
总页数：18
分类号：U46
关键词：R1234yf；R134a；Exergy；Automobile；Air conditioning；Variable-capacity compressor
参考中译：R1234yf；R134a；(火用)；汽车；空调；变容量压缩机
语种：eng
文摘：The use of refrigerants from the hydrofluorocarbon family has been restricted due to their high global warming potential, and the manufacturers have been using R1234yf recently, a refrigerant from the hydrofluoroolefin family, as a substitute for R134a in mobile air conditioning (MAC) systems. In this study, a laboratory MAC system with a variable-capacity compressor was set up, and its comparative energetic and exergetic performance was evaluated for the cases of using R1234yf and R134a by changing the test conditions in a wide range. The results revealed that the system with R1234yf provided on average 13.7% less cooling duty and 12.8% less coefficient of performance based on the total power input relative to the system with R134a. Furthermore, the system with R1234yf destructed on average 18.9% more exergy per unit cooling duty. Excluding the condenser, the components of the R1234yf system destructed more exergy per unit cooling duty than those of the R134a one.
参考中译：氢氟烃系列制冷剂的使用受到限制，因为它们具有较高的全球变暖潜力，制造商最近一直在使用氢氟烯烃系列制冷剂R1234yf，作为移动空调系统中R134a的替代品。本研究建立了实验室变容量压气机空调系统，并在较大范围内改变试验条件，对R1234yf和R134a两种发动机的比较能量和耗能性能进行了评价。结果表明，与使用R134a的系统相比，使用R1234yf的系统平均减少了13.7%的制冷负荷，基于总功率输入的性能系数降低了12.8%。此外，采用R1234yf的系统每单位制冷负荷平均多消耗18.9%的火用。不包括冷凝器，R1234yf系统的每单位制冷负荷的部件比R134a系统的部件破坏更多的火用。



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