In this study, the investigation on the performance improvement of the recompression supercritical carbon dioxide (sCO₂) power cycle by integrating with two novel absorption power cycles (APC) are carried out. Comparative study, parametric analysis, single-objective and multi-objective optimizations on the thermodynamic and economic performance are conducted quantitatively for two proposed sCO₂/APC systems and an original sCO₂/APC system. Comparative study results indicate that the proposed APC3 subsystem can generate the highest mass flow rate of working fluid with the highest reheated temperature across the turbine, contributing to the highest net power output. Besides, the working fluid produced by the proposed APC2 subsystem is nearly the same as that of the original APC1 subsystem, but the net power output of APC2 subsystem is still slightly higher than that of APC1 subsystem due to the reheated working fluid with more potential to generate power of APC2 subsystem. In addition, the optimization results reveal that all APC subsystems studied here are able to improve the stand-alone sCO₂ system performance in thermodynamics and economics, and two proposed sCO₂/APC systems can further improve the overall performance of the original sCO₂/APC system. In detail, the improvement of 0.31% and 2.35% for the exergy efficiency and 0.21% and 2.43% for the total product unit cost can be achieved by the sCO₂/APC2 system and sCO₂/APC3 system, respectively, compared with the sCO₂/APC1 system.

在这项研究中，通过结合两个新的吸收式功率循环（APC）进行了再压缩超临界二氧化碳（sCO ₂）功率循环性能改进的研究。对两个提议的sCO ₂ / APC系统和一个原始sCO ₂进行了定量研究，热力学和经济性能的比较研究，参数分析，单目标和多目标优化。/ APC系统。比较研究结果表明，提出的APC3子系统可以在整个涡轮机中产生最高质量的工作流体，并具有最高的再热温度，从而实现最高的净功率输出。此外，拟议的APC2子系统产生的工作流体与原始APC1子系统几乎相同，但是由于再加热的工作流体具有更大的潜力，APC2子系统的净功率输出仍略高于APC1子系统。生成APC2子系统的电源。此外，优化结果还表明，本文研究的所有APC子系统均能够提高独立的sCO ₂系统在热力学和经济学方面的性能，以及两个拟议的sCO ₂/ APC系统可以进一步提高原始sCO ₂ / APC系统的整体性能。详细地说，与sCO相比，sCO ₂ / APC2系统和sCO ₂ / APC3系统分别可以将火用效率提高0.31％和2.35％，将产品总单位成本提高0.21％和2.43％。₂ / APC1系统。