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Current distribution in a rectangular flow channel manufactured by 3D-printing

Current distribution in a rectangular flow channel manufactured by 3D-printing
Current distribution in a rectangular flow channel manufactured by 3D-printing
The characterization and improvement of a rectangular channel electrolyte flow compartment used in an iron-air flow battery was carried out by using an arrangement of copper electrodes to measure the current density distribution employing the limiting current technique. The present work addresses the hydrodynamics and mass transport distribution in the compartment and their improvement by an improved electrolyte compartment that results in a more uniform current distribution. The current distribution was evaluated as the ratio between the local and the averaged limiting current densities during the reduction of copper ions over a range of mean linear flow velocity across the electrode surface (2-30 cm s-1).
The initial compartment, showed larger differences between the minimum and maximum currents than the electrolyte compartment that resulted as part of the design process and showed a higher pressure drop at a given mean linear flow velocity.
0001-1541
1-35
Figueredo Rodriguez, Horacio
e49f1681-45b4-4828-a217-9a507bb68791
Mckerracher, Rachel
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2
Figueredo Rodriguez, Horacio
e49f1681-45b4-4828-a217-9a507bb68791
Mckerracher, Rachel
f5f9f0e7-a256-4714-b752-e3bb8dab03fc
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, Frank
309528e7-062e-439b-af40-9309bc91efb2

Figueredo Rodriguez, Horacio, Mckerracher, Rachel, Ponce De Leon Albarran, Carlos and Walsh, Frank (2016) Current distribution in a rectangular flow channel manufactured by 3D-printing. AIChE Journal, 1-35. (doi:10.1002/aic.15454).

Record type: Article

Abstract

The characterization and improvement of a rectangular channel electrolyte flow compartment used in an iron-air flow battery was carried out by using an arrangement of copper electrodes to measure the current density distribution employing the limiting current technique. The present work addresses the hydrodynamics and mass transport distribution in the compartment and their improvement by an improved electrolyte compartment that results in a more uniform current distribution. The current distribution was evaluated as the ratio between the local and the averaged limiting current densities during the reduction of copper ions over a range of mean linear flow velocity across the electrode surface (2-30 cm s-1).
The initial compartment, showed larger differences between the minimum and maximum currents than the electrolyte compartment that resulted as part of the design process and showed a higher pressure drop at a given mean linear flow velocity.

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Accepted/In Press date: 9 August 2016
e-pub ahead of print date: 17 August 2016
Organisations: Energy Technology Group

Identifiers

Local EPrints ID: 399738
URI: http://eprints.soton.ac.uk/id/eprint/399738
ISSN: 0001-1541
PURE UUID: 5e5dc158-0905-4814-bc63-cfe5ca380254
ORCID for Carlos Ponce De Leon Albarran: ORCID iD orcid.org/0000-0002-1907-5913

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Date deposited: 25 Aug 2016 10:50
Last modified: 15 Mar 2024 05:51

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Author: Horacio Figueredo Rodriguez
Author: Frank Walsh

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