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Assessment of next generation refrigerants for air conditioning systems integrated with air-membrane heat and mass exchangers

机译：评估与空气膜热交换和质量交换器集成的空调系统的下一代制冷剂

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Thermodynamic analysis was conducted, in detail, to compare the performance of an air conditioning system with and without an air-membrane heat and mass exchanger. The study evaluated the performance of the system considering four promising new refrigerants: R1234yf, R1234ze, R32, and R423A. To evaluate the performance of the system, key performance parameters were used, including, coefficient of performance (COP), exergy destruction rate, second law efficiency, compressor work, irreversibility ratio, fuel depletion ratio, and productivity lack. In addition, the effect of varying the compressor pressure ratio, effectiveness of the membrane, and the relative humidity of fresh air on the performance of the system were evaluated for both configurations. The performance of an air conditioning system significantly improves when an air-membrane heat and mass exchanger is used. The main reason of this improvement is the significant drop in the cooling load and, consequently, the compressor input power. Furthermore, the study showed that COP as a measure of performance is not enough to have an appropriate comparison for the performance and further detailed analysis is needed, such as exergy analysis. Therefore, exergy analysis was also conducted to fully assess the advantages of using a membrane with an air conditioning system. From thermodynamics point of view, the study showed that R1234ze has the best performance while R32 has the lowest performance.
机译：进行了详细的热力学分析，以比较带有和不带有空气膜热质交换器的空调系统的性能。这项研究考虑了四种有前景的新型制冷剂：R1234yf，R1234ze，R32和R423A，评估了系统的性能。为了评估系统的性能，使用了关键性能参数，包括性能系数（COP），火用破坏率，第二律效率，压缩机工作，不可逆比，燃料消耗比和生产率不足。此外，对于两种配置，都评估了改变压缩机压力比，膜的有效性以及新鲜空气的相对湿度对系统性能的影响。当使用空气膜热质交换器时，空调系统的性能显着提高。这种改进的主要原因是冷却负荷以及压缩机输入功率的显着下降。此外，研究表明，作为性能指标的COP不足以对性能进行适当的比较，还需要进一步的详细分析，例如火用分析。因此，还进行了火用分析以充分评估将膜与空调系统配合使用的优势。从热力学角度来看，研究表明R1234ze具有最佳性能，而R32具有最低性能。

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