This study focuses on energy performance investigation and environmental impact analysis of various new ecofriendly refrigerant blends as alternatives to high global warming potential refrigerant R22 theoretically. In this study, 23 refrigerants were considered at various composition. The present work considered the practical vapour compression refrigeration cycle for the performance assessment of various R22 alternatives. Essential studies such as toxicity, flammability, and total equivalent warming index of various novel refrigerants were also conducted in this study. Results obtained from practical vapour compression refrigeration cycle revealed that the energy efficiency ratio of refrigerants such as R1270 (2.860) and RB03 (R290/R152a of 60/40 in mass %) (2.854) was closer to the energy efficiency ratio of R22 (2.940). Volumetric refrigeration capacity (VRC) of R1270 (3293 kJ/m3) was similar to that of R22 (3297 kJ/m3) whereas VRC of RB03 (2908 kJ/m3) was almost similar to that of R407C (2925 kJ/m3) which was an alternative to R22. Compressor discharge temperature of RB03 was 15.78 ℃ lower when compared to R22. Flammability study revealed that all the new refrigerant blends (RB01 to RB04) were classified into weakly flammable (A2) and flammable (A3) category refrigerants whereas toxicity study revealed that all the investigated refrigerants were classified into non-toxic group (A). Refrigerant blend RB03 was less flammable compared to R1270. Total equivalent warming index analysis revealed that the environmental impact of R422A was 27.88% higher than R22 whereas RB03 has 4.97% lower environmental impact compared to R22. Overall, performance of refrigerant blend RB03 was better compared to 23 investigated refrigerants and it was very nearer to the performance of R22 and hence, it could be considered as an ecofriendly alternative to replace high global warming potential refrigerant R22 used in air conditioners.

中文翻译：

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家用空调中使用的各种新型臭氧友好型制冷剂的理论能源性能评估和环境影响

本研究侧重于各种新型环保制冷剂混合物的能源性能调查和环境影响分析，从理论上讲，它们可作为高全球变暖潜势制冷剂 R22 的替代品。在这项研究中，考虑了 23 种不同成分的制冷剂。目前的工作考虑了用于各种 R22 替代品性能评估的实际蒸汽压缩制冷循环。本研究还进行了各种新型制冷剂的毒性、可燃性和总等效升温指数等基本研究。从实际蒸汽压缩制冷循环中获得的结果表明，R1270（2.860）和 RB03（R290/R152a 质量百分比为 60/40）（2.854）等制冷剂的能效比更接近于 R22（2.940）的能效比。 ）。R1270 (3293 kJ/m3) 的容积制冷量 (VRC) 与 R22 (3297 kJ/m3) 相似，而 RB03 (2908 kJ/m3) 的 VRC 与 R407C (2925 kJ/m3) 几乎相似，后者是 R22 的替代品。RB03的压缩机排气温度比R22低15.78℃。易燃性研究显示，所有新混合制冷剂（RB01 至 RB04）均归类为弱易燃 (A2) 和易燃 (A3) 类制冷剂，而毒性研究表明，所有研究的制冷剂均归类为无毒组 (A)。与 R1270 相比，混合制冷剂 RB03 的易燃性较低。总等效升温指数分析显示，R422A 的环境影响比 R22 高 27.88%，而 RB03 的环境影响比 R22 低 4.97%。全面的，