Exergy analysis and performance improvement of direct steam-generated solar-based transcritical CO2 Rankine cycle with energy storage

ÇELİK TOKER S., KIZILKAN Ö., Yamaguchi H.

International Journal of Exergy, vol.44, no.3-4, pp.279-292, 2024 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 3-4
  • Publication Date: 2024
  • Doi Number: 10.1504/ijex.2024.140184
  • Journal Name: International Journal of Exergy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.279-292
  • Keywords: energy, exergy, heat storage, solar energy, transcritical CO2 Rankine cycle
  • Isparta University of Applied Sciences Affiliated: Yes

Abstract

In this particular study, the researchers conducted energy and exergy analyses of a solar-based transcritical CO2 Rankine cycle in order to improve its performance by integrating a regenerator and an energy storage unit. For the assessment, the system’s features are drawn from genuine experimental research undertaken at Doshisha University in Kyoto, Japan. The effects of employing a regenerator and an energy storage tank were examined theoretically in order to determine the potential for enhancing the performance of the cycle. According to the data analysis, there has been a substantial boost in the energy produced, registering an impressive 22.7% improvement.