SOFC stacks respond quickly to changes in load and exhibit high part- and full-load efficiencies (due to rapid electrochemistry), which is not true for the balance of plant (BOP), where load-following time constants are several orders of magnitude higher. This dichotomy diminishes the reliability and performance of the electrode with increasing demand of load. Because these unwanted phenomena are not well understood, the manufacturers of SOFC use conservative schemes to control stack responses to load variations, which limit the applicability of SOFC systems from a cost standpoint. Thus, a need exists for the synthesis of component- and system-level models of SOFC power-conditioning systems and the development of methodologies for investigating the system-interaction issues (which reduce the lifetime and efficiency of a SOFC) and optimizing the responses of each subsystem. Equally important are “multiresolution” finite-element modeling and simulation studies that can predict the impact of changes in system-level variables (e.g., current ripple and load-transients) on the local current densities, voltages, and temperature (these parameters are very difficult or cumbersome, if not impossible to obtain) within a SOFC cell. Towards that end, this paper presents a design methodology (with illustrations) for a simulation tool that will enable comprehensive analyses of above (critical) issues.
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ASME 2003 1st International Conference on Fuel Cell Science, Engineering and Technology
April 21–23, 2003
Rochester, New York, USA
Conference Sponsors:
- Electronic and Photonic Packaging Division
ISBN:
0-7918-3668-1
PROCEEDINGS PAPER
Development of a Comprehensive Simulation Platform to Investigate System Interactions Among Solid-Oxide Fuel Cell, Power-Conditioning Systems, and Application Loads
S. K. Mazumder,
S. K. Mazumder
University of Illinois, Chicago, IL
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K. Acharya,
K. Acharya
University of Illinois, Chicago, IL
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M. R. von Spakovsky,
M. R. von Spakovsky
Virginia Polytechnic Institute and State University, Blacksburg, VA
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D. Nelson,
D. Nelson
Virginia Polytechnic Institute and State University, Blacksburg, VA
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D. Rancruel,
D. Rancruel
Virginia Polytechnic Institute and State University, Blacksburg, VA
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C. Haynes,
C. Haynes
Georgia Tech Research Institute, Atlanta, GA
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R. Williams
R. Williams
Georgia Tech Research Institute, Atlanta, GA
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S. K. Mazumder
University of Illinois, Chicago, IL
R. Burra
University of Illinois, Chicago, IL
K. Acharya
University of Illinois, Chicago, IL
M. R. von Spakovsky
Virginia Polytechnic Institute and State University, Blacksburg, VA
D. Nelson
Virginia Polytechnic Institute and State University, Blacksburg, VA
D. Rancruel
Virginia Polytechnic Institute and State University, Blacksburg, VA
C. Haynes
Georgia Tech Research Institute, Atlanta, GA
R. Williams
Georgia Tech Research Institute, Atlanta, GA
Paper No:
FUELCELL2003-1706, pp. 101-109; 9 pages
Published Online:
January 5, 2009
Citation
Mazumder, SK, Burra, R, Acharya, K, von Spakovsky, MR, Nelson, D, Rancruel, D, Haynes, C, & Williams, R. "Development of a Comprehensive Simulation Platform to Investigate System Interactions Among Solid-Oxide Fuel Cell, Power-Conditioning Systems, and Application Loads." Proceedings of the ASME 2003 1st International Conference on Fuel Cell Science, Engineering and Technology. 1st International Fuel Cell Science, Engineering and Technology Conference. Rochester, New York, USA. April 21–23, 2003. pp. 101-109. ASME. https://doi.org/10.1115/FUELCELL2003-1706
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