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Exergy analysis for solid oxide fuel cell integrated hybrid desiccant cooling system

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  • Kim, Siwoong
  • Ham, Jinyoung
  • Oh, Seunghun
  • Jung, Jongyun
  • Kang, Sanggyu

Abstract

A numerical study on the residential solid oxide fuel cell (SOFC)-hybrid desiccant cooling (HDC) system has been proposed in our previous study. It has been established that only energy analysis cannot determine the optimal operating scenario. Since the SOFC operates at high temperatures, exergy analysis should be conducted to establish optimal system design by identifying specific components that have significant thermodynamic losses. It has been confirmed that substantial exergy destruction is observed in catalytic combustors, external reformers, and heat exchangers due to irreversible heat loss where reactions and heat transfer are observed at high temperatures. The efficiency of the SOFC-HDC system under rated condition without a burner is confirmed to be the highest at 44.1 %. The HDC system dominates the SOFC system in determining overall exergy efficiency in all scenarios. This research provides insights for improving adsorption or absorption cooling systems integrated with the SOFC system.

Suggested Citation

  • Kim, Siwoong & Ham, Jinyoung & Oh, Seunghun & Jung, Jongyun & Kang, Sanggyu, 2025. "Exergy analysis for solid oxide fuel cell integrated hybrid desiccant cooling system," Renewable Energy, Elsevier, vol. 245(C).
    • Handle: RePEc:eee:renene:v:245:y:2025:i:c:s0960148125004653
    DOI: 10.1016/j.renene.2025.122803
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    References listed on IDEAS

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    1. Palomba, Valeria & Ferraro, Marco & Frazzica, Andrea & Vasta, Salvatore & Sergi, Francesco & Antonucci, Vincenzo, 2018. "Experimental and numerical analysis of a SOFC-CHP system with adsorption and hybrid chillers for telecommunication applications," Applied Energy, Elsevier, vol. 216(C), pages 620-633.
    2. Radenahmad, Nikdalila & Azad, Atia Tasfiah & Saghir, Muhammad & Taweekun, Juntakan & Bakar, Muhammad Saifullah Abu & Reza, Md Sumon & Azad, Abul Kalam, 2020. "A review on biomass derived syngas for SOFC based combined heat and power application," Renewable and Sustainable Energy Reviews, Elsevier, vol. 119(C).
    3. Choudhury, Arnab & Chandra, H. & Arora, A., 2013. "Application of solid oxide fuel cell technology for power generation—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 430-442.
    4. Sharaf, Omar Z. & Orhan, Mehmet F., 2014. "An overview of fuel cell technology: Fundamentals and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 32(C), pages 810-853.
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