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Thermodynamic performance study of the SOFC-STIG distributed energy system fueled by LNG with CO2 recovery

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  • Yang, Xiaoyu
  • Zhao, Hongbin

Abstract

The SOFC-STIG distributed energy system is a significant developing trend in the field of energy technology. The SOFC-STIG distributed energy system fueled by LNG with CO2 recovery is put forward in this paper. In the new system, the LNG's cold energy can not only supply cold energy, but also cool compressor inlet air to reduce consumption of compressor work and recovery liquid CO2. Based on each part's mathematical model, the new system's thermodynamic performance calculation model is built by FORTRAN. And with the help of the simulation tool ASPEN Plus, the simulation work was carried out at steady state using Peng-Robinson equation of state. The results of calculation indicate that the thermal efficiency and the power efficiency of this distributed energy system are 72.77% and 57.08% while the exergy efficiency can reach 61.9%. Furthermore, several important variables including fuel flow rate, steam injection ratio and fuel utilization factor are selected to analyze the system performance.

Suggested Citation

  • Yang, Xiaoyu & Zhao, Hongbin, 2019. "Thermodynamic performance study of the SOFC-STIG distributed energy system fueled by LNG with CO2 recovery," Energy, Elsevier, vol. 186(C).
    • Handle: RePEc:eee:energy:v:186:y:2019:i:c:s0360544219315324
    DOI: 10.1016/j.energy.2019.115860
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    Citations

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    Cited by:

    1. Wang, Heng & Zhao, Hongbin & Du, Huicheng & Zhao, Zefeng & Zhang, Taiheng, 2022. "Thermodynamic performance study of a new diesel-fueled CLHG/SOFC/STIG cogeneration system with CO2 recovery," Energy, Elsevier, vol. 246(C).
    2. Emadi, Mohammad Ali & Chitgar, Nazanin & Oyewunmi, Oyeniyi A. & Markides, Christos N., 2020. "Working-fluid selection and thermoeconomic optimisation of a combined cycle cogeneration dual-loop organic Rankine cycle (ORC) system for solid oxide fuel cell (SOFC) waste-heat recovery," Applied Energy, Elsevier, vol. 261(C).
    3. Fanyue Qian & Weijun Gao & Dan Yu & Yongwen Yang & Yingjun Ruan, 2022. "An Analysis of the Potential of Hydrogen Energy Technology on Demand Side Based on a Carbon Tax: A Case Study in Japan," Energies, MDPI, vol. 16(1), pages 1-23, December.
    4. Fathy, Ahmed & Rezk, Hegazy & Mohamed Ramadan, Haitham Saad, 2020. "Recent moth-flame optimizer for enhanced solid oxide fuel cell output power via optimal parameters extraction process," Energy, Elsevier, vol. 207(C).
    5. Zhang, Jifu & Cui, Peizhe & Yang, Sheng & Zhou, Yaru & Du, Wei & Wang, Yinglong & Deng, Chengwei & Wang, Shuai, 2023. "Thermodynamic analysis of SOFC–CCHP system based on municipal sludge plasma gasification with carbon capture," Applied Energy, Elsevier, vol. 336(C).
    6. Xu, Hao & Xu, Xiafan & Chen, Liubiao & Guo, Jia & Wang, Junjie, 2022. "A novel cryogenic condensation system combined with gas turbine with low carbon emission for volatile compounds recovery," Energy, Elsevier, vol. 248(C).
    7. Chitgar, Nazanin & Moghimi, Mahdi, 2020. "Design and evaluation of a novel multi-generation system based on SOFC-GT for electricity, fresh water and hydrogen production," Energy, Elsevier, vol. 197(C).

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