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Parametric exergy analysis of a tubular Solid Oxide Fuel Cell (SOFC) stack through finite-volume model

Author

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  • Calise, F.
  • Ferruzzi, G.
  • Vanoli, L.

Abstract

This paper presents a very detailed local exergy analysis of a tubular Solid Oxide Fuel Cell (SOFC) stack. In particular, a complete parametric analysis has been carried out, in order to assess the effects of the synthesis/design parameters on the local irreversibilities in the components of the stack. A finite-volume axial-symmetric model of the tubular internal reforming Solid Oxide Fuel Cell stack under investigation has been used. The stack consists of: SOFC tubes, tube-in-tube pre-reformer and tube and shell catalytic burner. The model takes into account the effects of heat/mass transfer and chemical/electrochemical reactions. The model allows one to predict the performance of a SOFC stack once a series of design and operative parameters are fixed, but also to investigate the source and localization of inefficiency. To this scope, an exergy analysis was implemented. The SOFC tube, the pre-reformer and the catalytic burner are discretized along their longitudinal axes. Detailed models of the kinetics of the reforming, catalytic combustion and electrochemical reactions are implemented. Pressure drops, convection heat transfer and overvoltages are calculated on the basis of the work previously developed by the authors. The heat transfer model includes the contribution of thermal radiation, so improving the models previously used by the authors. Radiative heat transfer is calculated on the basis of the slice-to-slice configuration factors and corresponding radiosities. On the basis of this thermochemical model, an exergy analysis has been carried out, in order to localize the sources and the magnitude of irreversibilities along the components of the stack. In addition, the main synthesis/design variables were varied in order to assess their effect on the exergy destruction within the component to which the parameter directly refers ("endogenous" contribution) and on the exergy destruction of all remaining components ("exogenous" contribution). Then, this analysis is used to detect the parameters to be optimized in order to reduce the overall irreversibility rate in the cell.

Suggested Citation

  • Calise, F. & Ferruzzi, G. & Vanoli, L., 2009. "Parametric exergy analysis of a tubular Solid Oxide Fuel Cell (SOFC) stack through finite-volume model," Applied Energy, Elsevier, vol. 86(11), pages 2401-2410, November.
  • Handle: RePEc:eee:appene:v:86:y:2009:i:11:p:2401-2410
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    Citations

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    Cited by:

    1. Calise, Francesco & Palombo, Adolfo & Vanoli, Laura, 2012. "A finite-volume model of a parabolic trough photovoltaic/thermal collector: Energetic and exergetic analyses," Energy, Elsevier, vol. 46(1), pages 283-294.
    2. Chen, Hao & Yang, Chen & Zhou, Nana & Farida Harun, Nor & Oryshchyn, Danylo & Tucker, David, 2020. "High efficiencies with low fuel utilization and thermally integrated fuel reforming in a hybrid solid oxide fuel cell gas turbine system," Applied Energy, Elsevier, vol. 272(C).
    3. Ortiz-Vitoriano, N. & Bernuy-López, C. & Ruiz de Larramendi, I. & Knibbe, R. & Thydén, K. & Hauch, A. & Holtappels, P. & Rojo, T., 2013. "Optimizing solid oxide fuel cell cathode processing route for intermediate temperature operation," Applied Energy, Elsevier, vol. 104(C), pages 984-991.
    4. Chen, Daifen & Zeng, Qice & Su, Shichuan & Bi, Wuxi & Ren, Zhiqiang, 2013. "Geometric optimization of a 10-cell modular planar solid oxide fuel cell stack manifold," Applied Energy, Elsevier, vol. 112(C), pages 1100-1107.
    5. Ferrari, Mario L. & Pascenti, Matteo & Traverso, Alberto N. & Massardo, Aristide F., 2012. "Hybrid system test rig: Chemical composition emulation with steam injection," Applied Energy, Elsevier, vol. 97(C), pages 809-815.
    6. Pavelka, Michal & Klika, Václav & Vágner, Petr & Maršík, František, 2015. "Generalization of exergy analysis," Applied Energy, Elsevier, vol. 137(C), pages 158-172.
    7. Calise, Francesco & Dentice d'Accadia, Massimo & Libertini, Luigi & Quiriti, Edoardo & Vicidomini, Maria, 2017. "A novel tool for thermoeconomic analysis and optimization of trigeneration systems: A case study for a hospital building in Italy," Energy, Elsevier, vol. 126(C), pages 64-87.
    8. Zaccaria, V. & Tucker, D. & Traverso, A., 2016. "Transfer function development for SOFC/GT hybrid systems control using cold air bypass," Applied Energy, Elsevier, vol. 165(C), pages 695-706.
    9. Yan, Min & Zeng, Min & Chen, Qiuyang & Wang, Qiuwang, 2012. "Numerical study on carbon deposition of SOFC with unsteady state variation of porosity," Applied Energy, Elsevier, vol. 97(C), pages 754-762.
    10. Razbani, Omid & Wærnhus, Ivar & Assadi, Mohsen, 2013. "Experimental investigation of temperature distribution over a planar solid oxide fuel cell," Applied Energy, Elsevier, vol. 105(C), pages 155-160.
    11. Buonomano, Annamaria & Calise, Francesco & Palombo, Adolfo & Vicidomini, Maria, 2019. "Transient analysis, exergy and thermo-economic modelling of façade integrated photovoltaic/thermal solar collectors," Renewable Energy, Elsevier, vol. 137(C), pages 109-126.
    12. Buonomano, Annamaria & Calise, Francesco & d’Accadia, Massimo Dentice & Palombo, Adolfo & Vicidomini, Maria, 2015. "Hybrid solid oxide fuel cells–gas turbine systems for combined heat and power: A review," Applied Energy, Elsevier, vol. 156(C), pages 32-85.
    13. He, Zhongjie & Li, Hua & Birgersson, E., 2014. "Correlating variability of modeling parameters with non-isothermal stack performance: Monte Carlo simulation of a portable 3D planar solid oxide fuel cell stack," Applied Energy, Elsevier, vol. 136(C), pages 560-575.
    14. Ferrari, Mario L. & Massardo, Aristide F., 2013. "Cathode–anode side interaction in SOFC hybrid systems," Applied Energy, Elsevier, vol. 105(C), pages 369-379.
    15. Kang, Sanggyu & Ahn, Kook-Young, 2017. "Dynamic modeling of solid oxide fuel cell and engine hybrid system for distributed power generation," Applied Energy, Elsevier, vol. 195(C), pages 1086-1099.
    16. Al-Masri, A. & Peksen, M. & Blum, L. & Stolten, D., 2014. "A 3D CFD model for predicting the temperature distribution in a full scale APU SOFC short stack under transient operating conditions," Applied Energy, Elsevier, vol. 135(C), pages 539-547.
    17. Andersson, Martin & Yuan, Jinliang & Sundén, Bengt, 2010. "Review on modeling development for multiscale chemical reactions coupled transport phenomena in solid oxide fuel cells," Applied Energy, Elsevier, vol. 87(5), pages 1461-1476, May.

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