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首页> 外文期刊>International Journal of Technology >Exergy and Exergoenvironmental Assessment and Optimization of Low GWP Refrigerant for Vapor Compression Heat Pump System
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Exergy and Exergoenvironmental Assessment and Optimization of Low GWP Refrigerant for Vapor Compression Heat Pump System

机译：蒸汽压缩热泵系统低GWP制冷剂的火用与能用环境评估与优化

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Scientists have worked assiduously to find low GWP refrigerants for HVAC systems that specifically address the environmental problems of ozone depletion and global warming. R1234ze and R1234yf were considered as potential alternatives to conventional refrigerants such as R410A. Thermodynamic analysis of 4 kW air conditioning systems was conducted to assess system performance of R1234ze and R1234yf. Furthermore, exergy and exergo-environmental analysis were carried out for the heat pump system using selected environmentally friendly refrigerants. Finally, by using a multi-objective genetic algorithm, the optimum operating condition, including evaporation temperature, condensing temperature and mass flow refrigerant was determined. The result showed that the optimum operating condition of 20oC evaporation temperature, 42.57oC condensation temperature and 0.02 kg/s mass flow rate, led to exergy efficiency of 51.92% and an exergo-environmental value of 101.925 mPts/h. R1234ze has a comparable performance to R410A or performs even better.
机译：科学家们一直在努力寻找用于暖通空调系统的低全球升温潜能值制冷剂，以专门解决臭氧层消耗和全球变暖的环境问题。 R1234ze和R1234yf被认为是常规制冷剂（如R410A）的潜在替代品。进行了4 kW空调系统的热力学分析，以评估R1234ze和R1234yf的系统性能。此外，使用选定的环境友好型制冷剂对热泵系统进行了火用和能用环境分析。最后，采用多目标遗传算法，确定了蒸发温度，冷凝温度和制冷剂质量流量的最佳运行条件。结果表明，在20oC的蒸发温度，42.57oC的冷凝温度和0.02 kg / s的质量流量的最佳操作条件下，能效效率为51.92％，能效环境值为101.925 mPts / h。 R1234ze的性能可与R410A媲美甚至更好。

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