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Thermodynamic model for exergetic performance of a tubular SOFC module

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  • Akkaya, Ali Volkan
  • Sahin, Bahri
  • Erdem, Hasan Huseyin

Abstract

A tubular solid oxide fuel cell (TSOFC) module fed by methane is modelled and analyzed thermodynamically from the exergy point of view in this paper. The model of TSOFC module consists of mixer, pre-reformer, internal reforming fuel cell group, afterburner and internal pre-heater components. The model of the components forming module is given based on mass, energy and exergy balance equations. The developed thermodynamic model is simulated, and the obtained performance characteristics are compared and validated with the experimental data taken from the literature concerning TSOFC module. For exergetic performance analysis, the effects of operating variables such as current density, pressure, and fuel utilization factor on exergetic performances (module exergy efficiency, module exergetic performance coefficient, module exergy output and total exergy destruction rate, and components' exergy efficiencies, exergy destruction rates) are investigated. From the analysis, it is determined that the biggest exergy loss stems from exhaust gasses. Other important sources of exergy destruction involve fuel cell group and afterburner. Consequently, the developed thermodynamic model is expected to provide not only a convenient tool to determine the module exergetic performances and component irreversibility but also an appropriate basis to design complex hybrid power generation plants.

Suggested Citation

  • Akkaya, Ali Volkan & Sahin, Bahri & Erdem, Hasan Huseyin, 2009. "Thermodynamic model for exergetic performance of a tubular SOFC module," Renewable Energy, Elsevier, vol. 34(7), pages 1863-1870.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:7:p:1863-1870
    DOI: 10.1016/j.renene.2008.11.017
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    References listed on IDEAS

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    1. Ust, Yasin & Sahin, Bahri & Kodal, Ali & Akcay, Ismail Hakki, 2006. "Ecological coefficient of performance analysis and optimization of an irreversible regenerative-Brayton heat engine," Applied Energy, Elsevier, vol. 83(6), pages 558-572, June.
    2. Ust, Yasin & Sahin, Bahri & Sogut, Oguz Salim, 2005. "Performance analysis and optimization of an irreversible dual-cycle based on an ecological coefficient of performance criterion," Applied Energy, Elsevier, vol. 82(1), pages 23-39, September.
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    Cited by:

    1. Park, Joonguen & Bae, Joongmyeon & Kim, Jae-Yuk, 2012. "A numerical study on anode thickness and channel diameter of anode-supported flat-tube solid oxide fuel cells," Renewable Energy, Elsevier, vol. 42(C), pages 180-185.
    2. Park, Joonguen & Kang, Juhyun & Bae, Joongmyeon, 2013. "Computational analysis of operating temperature, hydrogen flow rate and anode thickness in anode-supported flat-tube solid oxide fuel cells," Renewable Energy, Elsevier, vol. 54(C), pages 63-69.
    3. Barelli, L. & Ottaviano, A., 2014. "Solid oxide fuel cell technology coupled with methane dry reforming: A viable option for high efficiency plant with reduced CO2 emissions," Energy, Elsevier, vol. 71(C), pages 118-129.
    4. Denver F. Cheddie, 2010. "Integration of A Solid Oxide Fuel Cell into A 10 MW Gas Turbine Power Plant," Energies, MDPI, vol. 3(4), pages 1-16, April.
    5. Chitsaz, Ata & Sadeghi, Mohsen & Sadeghi, Maesoumeh & Ghanbarloo, Elham, 2018. "Exergoenvironmental comparison of internal reforming against external reforming in a cogeneration system based on solid oxide fuel cell using an evolutionary algorithm," Energy, Elsevier, vol. 144(C), pages 420-431.
    6. Fallah, M. & Mahmoudi, S.M.S. & Yari, M., 2017. "Advanced exergy analysis for an anode gas recirculation solid oxide fuel cell," Energy, Elsevier, vol. 141(C), pages 1097-1112.
    7. Farnak, M. & Esfahani, J.A. & Bozorgmehri, S., 2020. "An experimental design of the solid oxide fuel cell performance by using partially oxidation reforming of natural gas," Renewable Energy, Elsevier, vol. 147(P1), pages 155-163.
    8. Hou, Qinlong & Zhao, Hongbin & Yang, Xiaoyu, 2018. "Thermodynamic performance study of the integrated MR-SOFC-CCHP system," Energy, Elsevier, vol. 150(C), pages 434-450.

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