Prediction of mass transport profiles in a laboratory filter-press electrolyser by computational fluid dynamics modelling

A commercial computational fluid dynamics code (Fluent) has been used to analyze the performance of a unit cell laboratory; the filter-press reactor (FM01-LC) operating with characteristic linear flow velocities between 0.024 m s −1 and 0.110 m s −1. The electrolyte flow through the reactor channel...

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Bibliographic Details
Published in:Electrochimica acta 2010-04, Vol.55 (10), p.3446-3453
Main Authors: Vázquez, L., Alvarez-Gallegos, A., Sierra, F.Z., León, C. Ponce de, Walsh, F.C.
Format: Article
Language:English
Subjects:
Cell design
Channels
Chemistry
Computational fluid dynamics
Electrochemistry
Electrolytes
Exact sciences and technology
Flow patterns
FM01-LC
General and physical chemistry
Mass transport
Mathematical analysis
Mathematical models
Navier-Stokes equations
Reactors
Transport
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Summary:A commercial computational fluid dynamics code (Fluent) has been used to analyze the performance of a unit cell laboratory; the filter-press reactor (FM01-LC) operating with characteristic linear flow velocities between 0.024 m s −1 and 0.110 m s −1. The electrolyte flow through the reactor channel was numerically simulated using a finite volume approach to the solution of the Navier–Stokes equations. The flow patterns in the reactor were obtained and the mean linear electrolyte velocity was evaluated and substituted into a general mass transport correlation to calculate the mass transport coefficients. In the region of 150 < Re < 550, mass transport coefficients were obtained with a relative error between 5% and 29% respect to the experimental k m values. The differences between theoretical and experimental values are discussed.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2009.08.067