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Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: mathematical and modelling aspects of porous media

Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: mathematical and modelling aspects of porous media
Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: mathematical and modelling aspects of porous media
.
Description of electrolyte fluid dynamics in the electrode compartments by mathematical models can be a powerful tool in the development of redox flow batteries and other electrochemical reactors. In order to determine their predictive capability, turbulent Reynolds-averaged Navier–Stokes (RANS) and free flow plus porous media (Brinkman) models were applied to compute local fluid velocities taking place in a rectangular channel electrochemical flow cell used as the positive half-cell of a cerium-based redox flow battery for laboratory studies. Two different platinized titanium electrodes were considered, a plate plus a turbulence promoter and an expanded metal mesh. Calculated pressure drop was validated against experimental data obtained with typical cerium electrolytes. It was found that the pressure drop values were better described by the RANS approach, whereas the validity of Brinkman equations was strongly dependent on porosity and permeability values of the porous med
CFD simulation, porous media, porous electrode, pressure drop, redox flow battery
Rivera, Fernando
d5249472-39d7-4a21-98b2-edef98d00e03
Miranda-Alcántara, Berenice
503a53a5-cab6-4bd4-9c64-9732a6b0044b
Orozco, Germán
202a07c3-759d-470b-b83e-707718e6e62b
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Arenas Martinez, Luis Fernando
6e7e3d10-2aab-4fc3-a6d4-63a6614d0403
Rivera, Fernando
d5249472-39d7-4a21-98b2-edef98d00e03
Miranda-Alcántara, Berenice
503a53a5-cab6-4bd4-9c64-9732a6b0044b
Orozco, Germán
202a07c3-759d-470b-b83e-707718e6e62b
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Arenas Martinez, Luis Fernando
6e7e3d10-2aab-4fc3-a6d4-63a6614d0403

Rivera, Fernando, Miranda-Alcántara, Berenice, Orozco, Germán, Ponce De Leon Albarran, Carlos and Arenas Martinez, Luis Fernando (2020) Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: mathematical and modelling aspects of porous media. Frontiers of Chemical Science and Engineering. (In Press)

Record type: Article

Abstract

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Description of electrolyte fluid dynamics in the electrode compartments by mathematical models can be a powerful tool in the development of redox flow batteries and other electrochemical reactors. In order to determine their predictive capability, turbulent Reynolds-averaged Navier–Stokes (RANS) and free flow plus porous media (Brinkman) models were applied to compute local fluid velocities taking place in a rectangular channel electrochemical flow cell used as the positive half-cell of a cerium-based redox flow battery for laboratory studies. Two different platinized titanium electrodes were considered, a plate plus a turbulence promoter and an expanded metal mesh. Calculated pressure drop was validated against experimental data obtained with typical cerium electrolytes. It was found that the pressure drop values were better described by the RANS approach, whereas the validity of Brinkman equations was strongly dependent on porosity and permeability values of the porous med

Text
Accepted Manuscript - Rivera et al - Accepted Manuscript
Restricted to Repository staff only until 11 March 2021.
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More information

Accepted/In Press date: 11 March 2020
Keywords: CFD simulation, porous media, porous electrode, pressure drop, redox flow battery

Identifiers

Local EPrints ID: 441857
URI: http://eprints.soton.ac.uk/id/eprint/441857
PURE UUID: 0675b08b-974f-4868-a463-40a701c11908
ORCID for Carlos Ponce De Leon Albarran: ORCID iD orcid.org/0000-0002-1907-5913

Catalogue record

Date deposited: 30 Jun 2020 16:31
Last modified: 07 Oct 2020 01:51

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