Numerical simulation of a direct internal reforming solid oxide fuel cell using computational fluid dynamics method

A detailed mathematical model of a direct internal reforming solid oxide fuel cell （DIR-SOFC） incorporating with simulation of chemical and physical processes in the fuel cell is presented. The model is developed based on the reforming and electrochemical reaction mechanisms, mass and energy conserv...

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Vydáno v:Journal of Zhejiang University. A. Science Ročník 9; číslo 7; s. 961 - 969
Hlavní autoři: Li, Jun, Kang, Ying-wei, Cao, Guang-yi, Zhu, Xin-jian, Tu, Heng-yong, Li, Jian
Médium: Journal Article
Jazyk:angličtina
Vydáno: Hangzhou Zhejiang University Press 01.07.2008
Témata:
Civil Engineering
Classical and Continuum Physics
Engineering
Industrial Chemistry/Chemical Engineering
Mechanical Engineering
固体氧化物燃料电池
数值模拟
直接重整
计算流体动力学法
Numerical simulation
Direct internal reforming (DIR)
Solid oxide fuel cell (SOFC)
TM911.4
Computational fluid dynamics (CFD)
ISSN:1673-565X, 1862-1775
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Shrnutí:A detailed mathematical model of a direct internal reforming solid oxide fuel cell （DIR-SOFC） incorporating with simulation of chemical and physical processes in the fuel cell is presented. The model is developed based on the reforming and electrochemical reaction mechanisms, mass and energy conservation, and heat transfer. A computational fluid dynamics （CFD） method is used for solving the complicated multiple partial differential equations （PDEs） to obtain the numerical approximations. The resulting distributions of chemical species concentrations, temperature and current density in a cross-flow DIR-SOFC are given and analyzed in detail. Further, the influence between distributions of chemical species concentrations, temperature and current density during the simulation is illustrated and discussed. The heat and mass transfer, and the kinetics of reforming and electrochemical reactions have significant effects on the parameter distributions within the cell. The results show the particular characteristics of the DIR-SOFC among fuel cells, and can aid in stack design and control.
Bibliografie:Direct internal reforming （DIR）, Solid oxide fuel cell （SOFC）, Computational fluid dynamics （CFD）, Numerical simulation
TM911.4
33-1236/O4
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A0720054