This paper seeks to develop a mathematical model to analyze a novel ejector enhanced heat pump system from the thermodynamics viewpoint, and optimize the system by an elitist multi-objective non-dominated sorting genetic algorithm (NSGA-II). Zeotropic mixture (R600/R143a) is used as the system working fluid, and a booster is added to the conventional ejector enhanced system to improve the coefficient of the performance (COP). A code has been developed in MATLAB software to analyze the performance of the system by changing the value of different variables. The system is compared with a conventional system and the results showed that the COP of the proposed system can be higher than the conventional system up to 25%. Exergy analysis indicates that the highest exergy destruction (7.784 kW) is associated with the ejector. Moreover, thermo-economic analysis shows that the unit cost of the product of the system is 133.596 $/GJ. Further, the results show that the highest performance of the system is achievable using R143a/R600 mixture fluid with an R600 mass fraction of 0.45. Furthermore, the results demonstrate that exergetic efficiency, and heating load increase with the condenser temperature, while COP and unit cost of product decrease. Considering multi-objective NSGA-II, the optimum values of COP, exergy efficiency, and unit cost of the product are 2.78, 25.9%, and 113.57 $/GJ, respectively.

本文旨在建立一个数学模型，以从热力学角度分析新型喷射器增强型热泵系统，并通过精英多目标非支配排序遗传算法（NSGA-II）对该系统进行优化。共沸混合物（R600 / R143a）被用作系统工作流体，并且在传统的喷射器增强系统中添加了增压器，以提高性能系数（COP）。已经在MATLAB软件中开发了一个代码，通过更改不同变量的值来分析系统的性能。将系统与常规系统进行比较，结果表明，提出的系统的COP可以比常规系统高25％。火用分析表明，最高的火用破坏（7.784 kW）与喷射器有关。此外，热经济分析表明，该系统产品的单位成本为133.596 $ / GJ。此外，结果表明，使用R143a / R600质量分数为0.45的R143a / R600混合液可以实现系统的最高性能。此外，结果表明，随着冷凝器温度的提高，有效效率和热负荷增加，而COP和产品单位成本降低。考虑到多目标NSGA-II，产品的COP，火用效率和单位成本的最佳值分别为2.78、25.9％和113.57 $ / GJ。结果表明，随着冷凝器温度的提高，热效率和热负荷增加，而COP和产品单位成本降低。考虑到多目标NSGA-II，产品的COP，火用效率和单位成本的最佳值分别为2.78、25.9％和113.57 $ / GJ。结果表明，随着冷凝器温度的提高，热效率和热负荷增加，而COP和产品单位成本降低。考虑到多目标NSGA-II，产品的COP，火用效率和单位成本的最佳值分别为2.78、25.9％和113.57 $ / GJ。