A novel evaluation criterion (exergy efficiency plot) for the comprehensive performance is developed and applied in a novel heat exchanger system with built-in perforated twisted turbulator. Effect of twisted turbulator with different perforated ratios on the exergy efficiency was explored and optimized experimentally. The results exhibited that with the increase of the perforated ratio, the thermo-hydraulic performance of the system will be improved slightly at first, and then the performance begins to decline after reaching the peak, until the perforated ratio reaches 100%, which is equivalent to no twisted turbulator. Further, the influence factors such as Reynolds number and magnetic field form were introduced to regulate the thermo-hydraulic performance of the system. It was indicated that the rising Reynolds number and vertical magnetic field play a positive role in improving the performance of the system, and the change of Reynolds number will also lead to the migration of the perforated ratio corresponding to the best performance. Moreover, in this study, the exergy efficiency method was adopted to analyze the comprehensive characteristics of each experimental case, and it was found that the heat transfer efficiency of the system has been significantly improved.

开发了一种用于综合性能的新型评估标准（能效图），并将其应用在带有内置多孔扭曲扰流器的新型热交换器系统中。探索和优化了不同穿孔率的扭力湍流器对火用效率的影响。结果表明，随着穿孔率的增加，系统的热工性能首先会有所改善，然后达到峰值后性能开始下降，直至穿孔率达到100％，这是相当的。到没有扭曲的湍流器。此外，引入诸如雷诺数和磁场形式的影响因素来调节系统的热工液压性能。研究表明，雷诺数的增加和垂直磁场对改善系统性能起着积极作用，雷诺数的变化也将导致对应最佳性能的穿孔比的迁移。此外，在本研究中，采用了火用效率方法来分析每个实验案例的综合特性，发现系统的传热效率得到了显着提高。