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Dynamic Analysis of Load Operations of Two-Stage SOFC Stacks Power Generation System

Author

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  • Paulina Pianko-Oprych

    (Faculty of Chemical Technology and Engineering, Institute of Chemical Engineering and Environmental Protection Processes, West Pomeranian University of Technology, Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland)

  • S. M. Hosseini

    (Faculty of Chemical Technology and Engineering, Institute of Chemical Engineering and Environmental Protection Processes, West Pomeranian University of Technology, Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland)

Abstract

The main purpose of this paper was to develop a complete dynamic model of a power generation system based on two serially connected solid oxide fuel cell stacks. The uniqueness of this study lies in a different number of fuel cells in the stacks. The model consists of the electrochemical model, mass and energy balance equations implemented in MATLAB Simulink environment. Particular attention has been paid to the analysis of the transient response of the reformers, fuel cells and the burner. The dynamic behavior of the system during transient conditions was investigated by load step changing. The model evaluates electrical and thermal responses of the system at variable drawn current. It was found that a decrease of 40% in the 1st stage and 2nd solid oxide fuel cell (SOFC) stacks drawn current caused both stacks temperature to drop by 2%. An increase of the cell voltage for the 1st and 2nd SOFC stacks led to very fast steam reformer response combined with a slight decrease in reformer temperature, while a considerable burner temperature increase of 70 K can be observed. Predictions of the model provide the basic insight into the operation of the power generation-based SOFC system during various transients and support its further design modifications.

Suggested Citation

  • Paulina Pianko-Oprych & S. M. Hosseini, 2017. "Dynamic Analysis of Load Operations of Two-Stage SOFC Stacks Power Generation System," Energies, MDPI, vol. 10(12), pages 1-21, December.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:12:p:2103-:d:122527
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    References listed on IDEAS

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    1. 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.
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    Cited by:

    1. Daifen Chen & Biao Hu & Kai Ding & Cheng Yan & Liu Lu, 2018. "The Geometry Effect of Cathode/Anode Areas Ratio on Electrochemical Performance of Button Fuel Cell Using Mixed Conducting Materials," Energies, MDPI, vol. 11(7), pages 1-16, July.
    2. Tomasz A. Prokop & Grzegorz Brus & Shinji Kimijima & Janusz S. Szmyd, 2020. "Thin Solid Film Electrolyte and Its Impact on Electrode Polarization in Solid Oxide Fuel Cells Studied by Three-Dimensional Microstructure-Scale Numerical Simulation," Energies, MDPI, vol. 13(19), pages 1-14, October.
    3. Chehrmonavari, Hamed & Kakaee, Amirhasan & Hosseini, Seyed Ehsan & Desideri, Umberto & Tsatsaronis, George & Floerchinger, Gus & Braun, Robert & Paykani, Amin, 2023. "Hybridizing solid oxide fuel cells with internal combustion engines for power and propulsion systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    4. Kim, Taebeen & Kang, Sanggyu, 2023. "Numerical analysis of a highly efficient cascade solid oxide fuel cell system with a fuel regenerator," Applied Energy, Elsevier, vol. 341(C).
    5. Yongqing Wang & Xingchen Li & Zhenning Guo & Ke Wang & Yan Cao, 2021. "Effect of the Reactant Transportation on Performance of a Planar Solid Oxide Fuel Cell," Energies, MDPI, vol. 14(4), pages 1-14, February.
    6. Chien-Chang Wu & Tsung-Lin Chen, 2020. "Dynamic Modeling of a Parallel-Connected Solid Oxide Fuel Cell Stack System," Energies, MDPI, vol. 13(2), pages 1-20, January.
    7. Cheng-Hao Yang & Shing-Cheng Chang & Yen-Hsin Chan & Wen-Sheng Chang, 2019. "A Dynamic Analysis of the Multi-Stack SOFC-CHP System for Power Modulation," Energies, MDPI, vol. 12(19), pages 1-17, September.
    8. Koo, Taehyung & Kim, Young Sang & Lee, Dongkeun & Yu, Sangseok & Lee, Young Duk, 2021. "System simulation and exergetic analysis of solid oxide fuel cell power generation system with cascade configuration," Energy, Elsevier, vol. 214(C).

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