In this paper we perform a model-based analysis of a solid oxide fuel cell (SOFC) system with an integrated steam reformer and with methane as a fuel. The objective of this study is to analyze the steady-state and transient characteristics of this system. For the analysis, we develop a detailed control-oriented model of the system that captures the heat and mass transfer, chemical kinetics, and electrochemical phenomena. We express the dynamics of the reformer and the fuel cell in state-space form. By applying coordinate transformations to the state-space model, we derive analytical expressions of steady-state conditions and transient behaviors of two critical performance variables, namely, fuel utilization and steam-to-carbon balance. Using these results, we solve a constrained steady-state fuel optimization problem using linear programming. Our analysis is supported by simulations. The results presented in this paper can be applied in predicting steady-state conditions and certain transient behaviors and will be useful in control development for SOFC systems.
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February 2010
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Steady-State and Transient Analysis of a Steam-Reformer Based Solid Oxide Fuel Cell System
Tuhin Das,
Tuhin Das
Assistant Professor
Department of Mechanical Engineering,
e-mail: tkdeme@rit.edu
Rochester Institute of Technology
, Rochester, NY 14623
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Sridharan Narayanan,
Sridharan Narayanan
Department of Mechanical Engineering,
Michigan State University
, East Lansing, MI 48824
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Ranjan Mukherjee
Ranjan Mukherjee
Professor
Department of Mechanical Engineering,
Michigan State University
, East Lansing, MI 48824
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Tuhin Das
Assistant Professor
Department of Mechanical Engineering,
Rochester Institute of Technology
, Rochester, NY 14623e-mail: tkdeme@rit.edu
Sridharan Narayanan
Department of Mechanical Engineering,
Michigan State University
, East Lansing, MI 48824
Ranjan Mukherjee
Professor
Department of Mechanical Engineering,
Michigan State University
, East Lansing, MI 48824J. Fuel Cell Sci. Technol. Feb 2010, 7(1): 011022 (10 pages)
Published Online: November 11, 2009
Article history
Received:
December 22, 2007
Revised:
August 5, 2008
Online:
November 11, 2009
Published:
November 11, 2009
Citation
Das, T., Narayanan, S., and Mukherjee, R. (November 11, 2009). "Steady-State and Transient Analysis of a Steam-Reformer Based Solid Oxide Fuel Cell System." ASME. J. Fuel Cell Sci. Technol. February 2010; 7(1): 011022. https://doi.org/10.1115/1.3120269
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