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Impact of carbon deposition on diffusion parameters in porous anodes of solid oxide fuel cells using the lattice Boltzmann method

Espinoza-Andaluz, M. LU ; Realpe, M. ; Li, T. and Andersson, M. LU (2019) 16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 In ECS Transactions 91(1). p.2023-2030
Abstract

A solid oxide fuel cell (SOFC) is an electrochemical device that converts energy of a chemical reaction into electrical and thermal energy. Besides lack of pollutants and high electrical efficiency, one of the main advantages of SOFCs is the flexibility of using a wide range of fuels, i.e., natural gas, biogas, or any reactant with hydrogen as constituent. However, the use of hydrocarbon fuels can affect the transport phenomena within the SOFC porous anode due to carbon deposition. The purpose of this work is to investigate, at pore-scale level, the impact of carbon deposition on the microstructural parameters that describes the diffusion process. The single-phase fluid flow behavior through digitally generated SOFC anodes is obtained... (More)

A solid oxide fuel cell (SOFC) is an electrochemical device that converts energy of a chemical reaction into electrical and thermal energy. Besides lack of pollutants and high electrical efficiency, one of the main advantages of SOFCs is the flexibility of using a wide range of fuels, i.e., natural gas, biogas, or any reactant with hydrogen as constituent. However, the use of hydrocarbon fuels can affect the transport phenomena within the SOFC porous anode due to carbon deposition. The purpose of this work is to investigate, at pore-scale level, the impact of carbon deposition on the microstructural parameters that describes the diffusion process. The single-phase fluid flow behavior through digitally generated SOFC anodes is obtained by the Lattice Boltzmann method (LBM). Diffusion transport parameters, i.e., porosity, gas-phase tortuosity and effective diffusion coefficient are computed for different content of carbon deposition to be able to evaluate its impact.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ECS Transactions
volume
91
issue
1
pages
8 pages
publisher
Electrochemical Society
conference name
16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
conference location
Kyoto, Japan
conference dates
2019-09-08 - 2019-09-13
external identifiers
  • scopus:85073264385
ISSN
1938-6737
DOI
10.1149/09101.2023ecst
language
English
LU publication?
yes
id
53043fb0-9e9a-4c27-9a2d-e101e69bd066
date added to LUP
2019-10-25 12:39:06
date last changed
2022-04-18 18:30:05
@article{53043fb0-9e9a-4c27-9a2d-e101e69bd066,
  abstract     = {{<p>A solid oxide fuel cell (SOFC) is an electrochemical device that converts energy of a chemical reaction into electrical and thermal energy. Besides lack of pollutants and high electrical efficiency, one of the main advantages of SOFCs is the flexibility of using a wide range of fuels, i.e., natural gas, biogas, or any reactant with hydrogen as constituent. However, the use of hydrocarbon fuels can affect the transport phenomena within the SOFC porous anode due to carbon deposition. The purpose of this work is to investigate, at pore-scale level, the impact of carbon deposition on the microstructural parameters that describes the diffusion process. The single-phase fluid flow behavior through digitally generated SOFC anodes is obtained by the Lattice Boltzmann method (LBM). Diffusion transport parameters, i.e., porosity, gas-phase tortuosity and effective diffusion coefficient are computed for different content of carbon deposition to be able to evaluate its impact.</p>}},
  author       = {{Espinoza-Andaluz, M. and Realpe, M. and Li, T. and Andersson, M.}},
  issn         = {{1938-6737}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{2023--2030}},
  publisher    = {{Electrochemical Society}},
  series       = {{ECS Transactions}},
  title        = {{Impact of carbon deposition on diffusion parameters in porous anodes of solid oxide fuel cells using the lattice Boltzmann method}},
  url          = {{http://dx.doi.org/10.1149/09101.2023ecst}},
  doi          = {{10.1149/09101.2023ecst}},
  volume       = {{91}},
  year         = {{2019}},
}