This study investigates the performance attributes of a vapor compression refrigeration system (VCRS) with employing R134a/MWCNT-oil mixture and liquid-suction heat exchanger (LSHE) with/without twisted tape turbulator (TTT). The tests are done at different cycle pressure ratios (6.55–10.12), TTT twist ratios (1 ≤ λ ≤ 4), and nanoparticles’ mass concentrations (0 ≤ φ ≤ 0.5%). The experiments state that the exergy destruction rates are reduced by employing LSHE, TTT with reducing its twist ratio, and engaging R134a/MWCNT-oil mixture with increasing the MWCNTs loading, besides growing the cycle pressure ratio. Compared to the simple VCRS, the maximum enhancements in the COP and exergy efficiency (η_Ex) of the VCRS are 37.3% and 126.5%, respectively, while compared to the simple LSHE, its effectiveness is improved by 97.9% obtained by simultaneously applying LSHE with TTT of λ = 1 and R134a/MWCNT-oil mixture of φ = 0.5%. Correlations are supplied to predict the COP and η_Ex of the VCRS besides the effectiveness of LSHE.

这项研究调查了蒸汽压缩制冷系统（VCRS）的性能属性，该系统采用R134a / MWCNT油混合物和带/不带扭带式扰流器（TTT）的液体吸入热交换器（LSHE）。测试在不同的循环压力比（6.55-10.12），TTT捻比（1≤完成 λ  ≤4），和纳米颗粒质量浓度（0≤φ≤0.5％）。实验表明，通过使用LSHE，TTT降低其扭曲率，并通过增加MWCNTs的负荷与R134a / MWCNT-油混合物接合，除了增加循环压力比之外，还降低了本能破坏率。相比于简单的VCRS，在COP和火用效率的最大增强（η_例）的VCRS分别为37.3％和126.5％，而与简单的LSHE相比，通过同时使用λ  = 1的TTT和φ= 0.5％的R134a / MWCNT油混合物获得的LSHE，其有效性提高了97.9 ％ 。相关性被提供给预测COP和η_实施例的VCRS的除了LSHE的有效性。