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CFD evaluation of internal manifold effects on mass transport distribution in a laboratory filter-press flow cell

CFD evaluation of internal manifold effects on mass transport distribution in a laboratory filter-press flow cell
CFD evaluation of internal manifold effects on mass transport distribution in a laboratory filter-press flow cell
The internal manifold geometry strongly influences the flow distribution inside an electrochemical reactor. The mass transport coefficient is a function of the flow pattern and is a key parameter in successful electrochemical reactor design and scale-up. In this work, a commercial computational flow dynamics (CFD) package was used to describe the flow pattern in the FM01-LC reactor at controlled volumetric flow rates (corresponding to mean linear flow velocities past the electrode surface between 0.024 and 0.11 m s?1). Numerical Re numbers were obtained for each local flow velocity at different positions in the reactor channel. From a known mass transport correlation (based on dimensionless groups, i.e. Sh, Re, Sc), numerical k m values were obtained (in the range 200 < Re < 1,000) at different positions in the reactor channel. Computed k m numbers are compared against experimental values. This computational approach could be useful in reactor design or selection since it facilitates a fast, preliminary reactor flow and mass transport characterisation without experimental electrochemical measurements.
453-465
Vázquez, L.
993a1f8e-8d39-4098-9ed1-c14ab07cb92c
Alvarez-Gallegos, A.
a3dea887-46cb-48ee-949b-10451655c07d
Sierra, F.Z.
f66f8c83-f8fa-48e7-8440-6aa9af0c03e3
Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2
Vázquez, L.
993a1f8e-8d39-4098-9ed1-c14ab07cb92c
Alvarez-Gallegos, A.
a3dea887-46cb-48ee-949b-10451655c07d
Sierra, F.Z.
f66f8c83-f8fa-48e7-8440-6aa9af0c03e3
Ponce de Leon, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Walsh, F.C.
309528e7-062e-439b-af40-9309bc91efb2

Vázquez, L., Alvarez-Gallegos, A., Sierra, F.Z., Ponce de Leon, Carlos and Walsh, F.C. (2013) CFD evaluation of internal manifold effects on mass transport distribution in a laboratory filter-press flow cell. Journal of Applied Electrochemistry, 43 (4), 453-465. (doi:10.1007/s10800-013-0530-9).

Record type: Article

Abstract

The internal manifold geometry strongly influences the flow distribution inside an electrochemical reactor. The mass transport coefficient is a function of the flow pattern and is a key parameter in successful electrochemical reactor design and scale-up. In this work, a commercial computational flow dynamics (CFD) package was used to describe the flow pattern in the FM01-LC reactor at controlled volumetric flow rates (corresponding to mean linear flow velocities past the electrode surface between 0.024 and 0.11 m s?1). Numerical Re numbers were obtained for each local flow velocity at different positions in the reactor channel. From a known mass transport correlation (based on dimensionless groups, i.e. Sh, Re, Sc), numerical k m values were obtained (in the range 200 < Re < 1,000) at different positions in the reactor channel. Computed k m numbers are compared against experimental values. This computational approach could be useful in reactor design or selection since it facilitates a fast, preliminary reactor flow and mass transport characterisation without experimental electrochemical measurements.

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Published date: 1 April 2013
Organisations: Engineering Science Unit

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Local EPrints ID: 364894
URI: http://eprints.soton.ac.uk/id/eprint/364894
PURE UUID: 45e85465-3ef7-4414-a1c8-21a2599e887c
ORCID for Carlos Ponce de Leon: ORCID iD orcid.org/0000-0002-1907-5913

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Date deposited: 15 May 2014 15:36
Last modified: 29 Oct 2019 01:49

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Contributors

Author: L. Vázquez
Author: A. Alvarez-Gallegos
Author: F.Z. Sierra
Author: F.C. Walsh

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