A multiscale model of transport phenomena in a single planar solid oxide fuel cell

2018 ◽  
Author(s):  
M. Mozdzierz ◽  
Grzegorz Brus ◽  
Shinji Kimijima ◽  
Janusz S. Szmyd
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Transport Phenomena ◽  
Multiscale Model ◽  
Solid Oxide ◽  
Oxide Fuel

A numerical analysis of unsteady transport phenomena in a Direct Internal Reforming Solid Oxide Fuel Cell

2019 ◽  
Vol 131 ◽  
pp. 1032-1051 ◽  
Author(s):  
Maciej Chalusiak ◽  
Michal Wrobel ◽  
Marcin Mozdzierz ◽  
Katarzyna Berent ◽  
Janusz S. Szmyd ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Numerical Analysis ◽  
Solid Oxide Fuel Cell ◽  
Transport Phenomena ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Internal Reforming ◽  
Direct Internal Reforming

scholarly journals A Multiscale Approach to the Numerical Simulation of the Solid Oxide Fuel Cell

Catalysts ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 253 ◽  
Author(s):  
Marcin Mozdzierz ◽  
Katarzyna Berent ◽  
Shinji Kimijima ◽  
Janusz S. Szmyd ◽  
Grzegorz Brus
Keyword(s):  
Experimental Data ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Multiscale Model ◽  
Solid Oxide ◽  
Correct Prediction ◽  
Multiscale Approach ◽  
Oxide Fuel

The models of solid oxide fuel cells (SOFCs), which are available in the open literature,may be categorized into two non-overlapping groups: microscale or macroscale. Recent progressin computational power makes it possible to formulate a model which combines both approaches,the so-called multiscale model. The novelty of this modeling approach lies in the combination ofthe microscale description of the transport phenomena and electrochemical reactions’ with thecomputational fluid dynamics model of the heat and mass transfer in an SOFC. In this work,the mathematical model of a solid oxide fuel cell which takes into account the averaged microstructureparameters of electrodes is developed and tested. To gain experimental data, which are used toconfirm the proposed model, the electrochemical tests and the direct observation of the microstructurewith the use of the focused ion beam combined with the scanning electron microscope technique(FIB-SEM) were conducted. The numerical results are compared with the experimental data fromthe short stack examination and a fair agreement is found, which shows that the proposed modelcan predict the cell behavior accurately. The mechanism of the power generation inside the SOFC isdiscussed and it is found that the current is produced primarily near the electrolyte–electrode interface.Simulations with an artificially changed microstructure does not lead to the correct prediction of thecell characteristics, which indicates that the microstructure is a crucial factor in the solid oxide fuelcell modeling.

Numerical analysis of transport phenomena in solid oxide fuel cell gas channels

Fuel ◽  
2021 ◽  
pp. 122557
Author(s):  
Shahide Sayadian ◽  
Majid Ghassemi ◽  
Sadegh Ahmadi ◽  
Anthony James Robinson
Keyword(s):  
Fuel Cell ◽  
Numerical Analysis ◽  
Solid Oxide Fuel Cell ◽  
Transport Phenomena ◽  
Solid Oxide ◽  
Oxide Fuel

Multiscale model for solid oxide fuel cell with electrode containing mixed conducting material

AIChE Journal ◽  
2015 ◽  
Vol 61 (11) ◽  
pp. 3786-3803 ◽  
Author(s):  
Daifen Chen ◽  
Hanzhi Wang ◽  
Shundong Zhang ◽  
Moses O. Tade ◽  
Zongping Shao ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Multiscale Model ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Conducting Material

Solid oxide fuel cell: design, materials, and transport phenomena

2012 ◽  
Vol 1 (5) ◽  
pp. 247-264 ◽  
Author(s):  
Pradip Majumdar ◽  
Satish K. Penmetsa
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Transport Phenomena ◽  
Solid Oxide ◽  
Cell Design ◽  
Oxide Fuel ◽  
Design Materials

scholarly journals An Anisotropic Microstructure Evolution in a Solid Oxide Fuel Cell Anode

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Grzegorz Brus ◽  
Hiroshi Iwai ◽  
Janusz S. Szmyd
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Anode Material ◽  
Transport Phenomena ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Term Operation ◽  
Microstructural Parameters ◽  
Aging Test ◽  
Homogeneous Models

AbstractThe presented research shows that the long-term operation of a solid oxide fuel cell can lead to substantial anisotropic changes in anode material. The morphology of microstructure in the investigated stack was observed before and after the aging test using electron nanotomography. The microstructural parameters were estimated based on the obtained digital representation of the anode microstructure. Anisotropy was discovered in two of the three phases that constitute the anode, namely nickel and pores. The third component of the anode, which is yttrium-stabilized zirconia, remains isotropic. The changes appear at the microscale and significantly affect the transport phenomena of electrons and gasses. The obtained results indicate that the reference anode material that represents the microstructure before the aging test has isotropic properties which evolve toward strong anisotropy after 3800 h of constant operation. The presented findings are crucial for a credible numerical simulation of solid oxide fuel cells. They indicate that all homogeneous models must adequately account for the microstructure parameters that define the anisotropy of transport phenomena, especially if microstructural data is taken from a post-operational anode.

Multi-physics simulation of transport phenomena in planar proton-conducting solid oxide fuel cell

2021 ◽  
Vol 481 ◽  
pp. 228997
Author(s):  
Shahide Sayadian ◽  
Majid Ghassemi ◽  
Anthony James Robinson
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Transport Phenomena ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Proton Conducting ◽  
Physics Simulation

Three-Dimensional Simulation of Planar Solid Oxide Fuel Cell Stack

2008 ◽  
Vol 128 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Yoshitaka Inui ◽  
Tadashi Tanaka ◽  
Tomoyoshi Kanno
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Three Dimensional ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Cell Stack ◽  
Dimensional Simulation
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