Thermodynamic analysis of Supercritical CO2 Partial Cooling Cycle integrated with two Organic Rankine Cycles

Abstract

This paper presents an innovative approach for increasing the thermal efficiency of supercritical CO2 (SCO2) power cycles by incorporating partial cooling with a two-bottom organic rankine cycles (ORC). The SCO2 power cycles have gained significant attention in recent years as a promising alternative to traditional power cycles due to their high thermal efficiency, but there is still room for improvement. The proposed approach aims to achieve this by utilizing the heat rejected by the SCO2 cycle to generate additional power through an ORC, and by using multiple working fluids with different temperature and pressure ranges in the ORC. The review explores the fundamental concepts, advantages, limitations, and recent advancements related to this integrated approach. By examining a range of studies and publications, this review offers valuable insights into the performance, feasibility, and potential applications of the partial cooling cycle integrated with ORCs in different settings. In conclusion, the proposed approach of combining partial cooling with a two-bottom ORC has the potential to improve the thermal efficiency of SCO2 power cycles. The results of this study demonstrate that this approach is a promising solution for increasing the performance of SCO2 power cycles. More research is needed, however, to fully evaluate the feasibility of implementing this method in real-world applications.