The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Development of a two-dimensional, moving mesh treatment for modelling the reaction chamber of the soluble lead flow battery as a function of state of charge for Pb and PbO2 deposition and dissolution

Development of a two-dimensional, moving mesh treatment for modelling the reaction chamber of the soluble lead flow battery as a function of state of charge for Pb and PbO2 deposition and dissolution
Development of a two-dimensional, moving mesh treatment for modelling the reaction chamber of the soluble lead flow battery as a function of state of charge for Pb and PbO2 deposition and dissolution
During cycling of the soluble lead flow battery, solid layers of lead (Pb) and lead dioxide (PbO2) are deposited and stripped from the electrode surfaces. As such, there is a change in geometry of the flow field within the battery. A detailed two-dimensional numerical model which simulates this change in geometry using a moving mesh technique is developed. The model accounts for deposition of Pb, PbO2 along with the formation of lead oxide (PbO) during discharge of the PbO2 deposit due to a side reaction which is commonly assumed in the literature. Over short time scales of around 1 hr charge/discharge periods, which are typically reported in the literature, the effect of this is small. However, over more realistic time scales (>1 hr), by applying this technique, significant differences are seen in the cell resistance and in the mass flow rate of electrolyte. As a result, a difference in cell voltage of up to 65 mV is seen over a 24 hour period. The numerical results are validated against experimental data, showing an agreement in the voltage-time profile and a close fit for the moving mesh approach.
Cell resistance, Energy storage,, Modelling & simulation, Moving mesh, Soluble lead flow battery
2352-152X
1-27
Fraser, Ewan Joseph
0c5d3bc0-a4e7-4213-ab3b-e750103469d7
Ranga Dinesh, K.K.J
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Fraser, Ewan Joseph
0c5d3bc0-a4e7-4213-ab3b-e750103469d7
Ranga Dinesh, K.K.J
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c

Fraser, Ewan Joseph, Ranga Dinesh, K.K.J and Wills, Richard (2020) Development of a two-dimensional, moving mesh treatment for modelling the reaction chamber of the soluble lead flow battery as a function of state of charge for Pb and PbO2 deposition and dissolution. Journal of Energy Storage, 31, 1-27, [101484]. (doi:10.1016/j.est.2020.101484).

Record type: Article

Abstract

During cycling of the soluble lead flow battery, solid layers of lead (Pb) and lead dioxide (PbO2) are deposited and stripped from the electrode surfaces. As such, there is a change in geometry of the flow field within the battery. A detailed two-dimensional numerical model which simulates this change in geometry using a moving mesh technique is developed. The model accounts for deposition of Pb, PbO2 along with the formation of lead oxide (PbO) during discharge of the PbO2 deposit due to a side reaction which is commonly assumed in the literature. Over short time scales of around 1 hr charge/discharge periods, which are typically reported in the literature, the effect of this is small. However, over more realistic time scales (>1 hr), by applying this technique, significant differences are seen in the cell resistance and in the mass flow rate of electrolyte. As a result, a difference in cell voltage of up to 65 mV is seen over a 24 hour period. The numerical results are validated against experimental data, showing an agreement in the voltage-time profile and a close fit for the moving mesh approach.

Text
Manuscript EST 2020 175 R1 - Accepted Manuscript
Restricted to Repository staff only until 23 April 2022.
Request a copy

More information

Accepted/In Press date: 23 April 2020
e-pub ahead of print date: 24 June 2020
Published date: October 2020
Keywords: Cell resistance, Energy storage,, Modelling & simulation, Moving mesh, Soluble lead flow battery

Identifiers

Local EPrints ID: 441844
URI: http://eprints.soton.ac.uk/id/eprint/441844
ISSN: 2352-152X
PURE UUID: 3c84b055-7c86-4e1c-b0bc-fad5d16bbcb7
ORCID for Ewan Joseph Fraser: ORCID iD orcid.org/0000-0001-9592-9071
ORCID for K.K.J Ranga Dinesh: ORCID iD orcid.org/0000-0001-9176-6834
ORCID for Richard Wills: ORCID iD orcid.org/0000-0002-4805-7589

Catalogue record

Date deposited: 30 Jun 2020 16:30
Last modified: 26 Nov 2021 03:09

Export record

Altmetrics

Contributors

Author: Ewan Joseph Fraser ORCID iD
Author: Richard Wills ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×