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

Mayken Espinoza Andaluz; Joseph vila; Javier Pagalo; Tingshuai Li; Yuanxin Qi; Shian Li; Xiaoqiang Zhang; Martin Andersson

doi:10.1149/10301.1665ecst

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

Mayken Espinoza Andaluz, Joseph vila, Javier Pagalo, Tingshuai Li, Yuanxin Qi, Shian Li, Xiaoqiang Zhang, Martin Andersson

Department of Energy Sciences

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

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 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.

Original language	English
Title of host publication	17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Publisher	IOP Publishing
Pages	1665-1671
Number of pages	7
Edition	1
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/10301.1665ecst
Publication status	Published - 2021
Event	17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 - Stockholm, Sweden Duration: 2021 Jul 18 → 2021 Jul 23

Publication series

Name	ECS Transactions
Number	1
Volume	103
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021
Country/Territory	Sweden
City	Stockholm
Period	2021/07/18 → 2021/07/23

Bibliographical note

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.

Subject classification (UKÄ)

Energy Engineering

Access to Document

10.1149/10301.1665ecst

Cite this

Espinoza Andaluz, M., vila, J., Pagalo, J., Li, T., Qi, Y., Li, S., Zhang, X., & Andersson, M. (2021). A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes. In 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 (1 ed., pp. 1665-1671). (ECS Transactions; Vol. 103, No. 1). IOP Publishing. https://doi.org/10.1149/10301.1665ecst

@inproceedings{8ea766d6e1954e8eab233833f94dcc78,

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

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 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.",

author = "{Espinoza Andaluz}, Mayken and Joseph vila and Javier Pagalo and Tingshuai Li and Yuanxin Qi and Shian Li and Xiaoqiang Zhang and Martin Andersson",

note = "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 Investigaci{\'o}n{"} (ESPOL) for his research stay in Europe during the first semester of 2021. Publisher Copyright: {\textcopyright} 2021 Electrochemical Society Inc.. All rights reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021 ; Conference date: 18-07-2021 Through 23-07-2021",

year = "2021",

doi = "10.1149/10301.1665ecst",

language = "English",

series = "ECS Transactions",

publisher = "IOP Publishing",

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booktitle = "17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021",

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Espinoza Andaluz, M, vila, J, Pagalo, J, Li, T, Qi, Y, Li, S, Zhang, X & Andersson, M 2021, A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes. in 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021. 1 edn, ECS Transactions, no. 1, vol. 103, IOP Publishing, pp. 1665-1671, 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021, Stockholm, Sweden, 2021/07/18. https://doi.org/10.1149/10301.1665ecst

A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes. / Espinoza Andaluz, Mayken; vila, Joseph; Pagalo, Javier et al.
17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021. 1. ed. IOP Publishing, 2021. p. 1665-1671 (ECS Transactions; Vol. 103, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - A-Asterisk Algorithm as an Alternative to Evaluate the Geometric Tortuosity in Digitally Created SOFC Anodes

AU - Espinoza Andaluz, Mayken

AU - vila, Joseph

AU - Pagalo, Javier

AU - Li, Tingshuai

AU - Qi, Yuanxin

AU - Li, Shian

AU - Zhang, Xiaoqiang

AU - Andersson, Martin

N1 - 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.

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

U2 - 10.1149/10301.1665ecst

DO - 10.1149/10301.1665ecst

M3 - Paper in conference proceeding

AN - SCOPUS:85111709456

T3 - ECS Transactions

SP - 1665

EP - 1671

BT - 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021

PB - IOP Publishing

T2 - 17th International Symposium on Solid Oxide Fuel Cells, SOFC 2021

Y2 - 18 July 2021 through 23 July 2021

ER -

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

Abstract

Publication series

Conference

Bibliographical note

Subject classification (UKÄ)

Access to Document

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