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A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes

Espinoza Andaluz, Mayken LU ; vila, Joseph ; Pagalo, Javier ; Li, Tingshuai ; Qi, Yuanxin LU ; Li, Shian LU ; Zhang, Xiaoqiang LU and Andersson, Martin LU orcid (2021) 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 In ECS Transactions 103(1). p.1665-1671
Abstract

A solid oxide fuel cell (SOFC) contains complex materials that facilitate the energy conversion process. The diffusion media play an important role in facilitating the reactant gases to reach the electrochemical active regions. Porosity and tortuosity are crucial parameters describing the diffusion to be analyzed in a SOFC anode. This paper aims to evaluate the feasibility of using the A-asterisk algorithm to compute the geometric tortuosity within SOFC anodes. A three-dimensional structure, which is digitally created, represents the SOFC anode, in which the possible paths that follow the fluid flow are analyzed. A-asterisk algorithm is used to generate possible paths, and therefore the geometric tortuosity can be computed considering... (More)

A solid oxide fuel cell (SOFC) contains complex materials that facilitate the energy conversion process. The diffusion media play an important role in facilitating the reactant gases to reach the electrochemical active regions. Porosity and tortuosity are crucial parameters describing the diffusion to be analyzed in a SOFC anode. This paper aims to evaluate the feasibility of using the A-asterisk algorithm to compute the geometric tortuosity within SOFC anodes. A three-dimensional structure, which is digitally created, represents the SOFC anode, in which the possible paths that follow the fluid flow are analyzed. A-asterisk algorithm is used to generate possible paths, and therefore the geometric tortuosity can be computed considering an averaged distance. A tortuosity-porosity correlation is proposed, and the results are compared with previous studies. Results show that the A-asterisk algorithm is a capable algorithm to evaluate the geometric tortuosity values in SOFC anodes with different particle size distribution and porosities.

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Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
series title
ECS Transactions
volume
103
issue
1
edition
1
pages
7 pages
publisher
IOP Publishing
conference name
17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
conference location
Stockholm, Sweden
conference dates
2021-07-18 - 2021-07-23
external identifiers
  • scopus:85111709456
ISSN
1938-6737
1938-5862
ISBN
9781607685395
DOI
10.1149/10301.1665ecst
language
English
LU publication?
yes
additional info
Funding Information: The authors kindly acknowledge the financial support from FIMCP-CERA-05-2017 project. Computational and physical resources provided by ESPOL are also very grateful. M. E-A thanks the financial support from "Decanato de Investigación" (ESPOL) for his research stay in Europe during the first semester of 2021. Publisher Copyright: © 2021 Electrochemical Society Inc.. All rights reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
id
8ea766d6-e195-4e8e-ab23-3833f94dcc78
date added to LUP
2021-08-16 09:36:59
date last changed
2025-04-04 15:10:50
@inproceedings{8ea766d6-e195-4e8e-ab23-3833f94dcc78,
  abstract     = {{<p>A solid oxide fuel cell (SOFC) contains complex materials that facilitate the energy conversion process. The diffusion media play an important role in facilitating the reactant gases to reach the electrochemical active regions. Porosity and tortuosity are crucial parameters describing the diffusion to be analyzed in a SOFC anode. This paper aims to evaluate the feasibility of using the A-asterisk algorithm to compute the geometric tortuosity within SOFC anodes. A three-dimensional structure, which is digitally created, represents the SOFC anode, in which the possible paths that follow the fluid flow are analyzed. A-asterisk algorithm is used to generate possible paths, and therefore the geometric tortuosity can be computed considering an averaged distance. A tortuosity-porosity correlation is proposed, and the results are compared with previous studies. Results show that the A-asterisk algorithm is a capable algorithm to evaluate the geometric tortuosity values in SOFC anodes with different particle size distribution and porosities.</p>}},
  author       = {{Espinoza Andaluz, Mayken and vila, Joseph and Pagalo, Javier and Li, Tingshuai and Qi, Yuanxin and Li, Shian and Zhang, Xiaoqiang and Andersson, Martin}},
  booktitle    = {{17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021}},
  isbn         = {{9781607685395}},
  issn         = {{1938-6737}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{1665--1671}},
  publisher    = {{IOP Publishing}},
  series       = {{ECS Transactions}},
  title        = {{A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes}},
  url          = {{http://dx.doi.org/10.1149/10301.1665ecst}},
  doi          = {{10.1149/10301.1665ecst}},
  volume       = {{103}},
  year         = {{2021}},
}