Energetic and exergetic analysis of multi-energy hybrid system including geothermal, green hydrogen, and cold energy storage

SOYTÜRK G., KIZILKAN Ö.

International Journal of Exergy, vol.46, no.3-4, pp.244-256, 2025 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 3-4
  • Publication Date: 2025
  • Doi Number: 10.1504/ijex.2025.146044
  • Journal Name: International Journal of Exergy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Page Numbers: pp.244-256
  • Keywords: cold energy storage, energy, exergy, geothermal energy, green hydrogen
  • Isparta University of Applied Sciences Affiliated: Yes

Abstract

This research delves into a thorough examination of a multi-energy system, combining geothermal energy, hydrogen (H2) generation, and cold energy storage. The system aims to establish an eco-friendly energy infrastructure by integrating these sustainable sources and storage methods. The study evaluates the system’s energy performance, scrutinising energy inputs, outputs, losses, and conversions across various components and subsystems. Furthermore, it conducts an exergy analysis to assess the effectiveness of energy transformations within the system, pinpointing areas of irreversibility and exergy dissipation. The findings reveal that the overall energetic efficiency stands at 11.31%, while the exergetic efficiency reaches 31.69%.