An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method

Mayu Muramatsu; S. Takase; K. Yashiro; T. Kawada; K. Terada

An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method

Mayu Muramatsu, S. Takase, K. Yashiro, T. Kawada, K. Terada

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

Original language	English
Title of host publication	COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering
Publisher	International Center for Numerical Methods in Engineering
Pages	614-624
Number of pages	11
ISBN (Electronic)	9788494392832
Publication status	Published - 2015 Jan 1
Externally published	Yes
Event	6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015 - Venice, Italy Duration: 2015 May 18 → 2015 May 20

Other

Other	6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015
Country/Territory	Italy
City	Venice
Period	15/5/18 → 15/5/20

Keywords

Microstructure
Potential Simulation
Solid Oxide Fuel Cells
Stress Analysis

ASJC Scopus subject areas

Computational Mathematics
Engineering(all)
Applied Mathematics

Cite this

Muramatsu, M., Takase, S., Yashiro, K., Kawada, T., & Terada, K. (2015). An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. In COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering (pp. 614-624). International Center for Numerical Methods in Engineering.

An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. / Muramatsu, Mayu; Takase, S.; Yashiro, K. et al.
COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering. International Center for Numerical Methods in Engineering, 2015. p. 614-624.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Muramatsu, M, Takase, S, Yashiro, K, Kawada, T & Terada, K 2015, An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. in COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering. International Center for Numerical Methods in Engineering, pp. 614-624, 6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015, Venice, Italy, 15/5/18.

Muramatsu M, Takase S, Yashiro K, Kawada T, Terada K. An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. In COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering. International Center for Numerical Methods in Engineering. 2015. p. 614-624

Muramatsu, Mayu ; Takase, S. ; Yashiro, K. et al. / An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering. International Center for Numerical Methods in Engineering, 2015. pp. 614-624

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abstract = "For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.",

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AB - For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

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An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method

Abstract

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Keywords

ASJC Scopus subject areas

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