NDLI: Two-phase Electrolysis Process Modelling: FromThe Bubble To The Electrochemical Cell Scale

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Two-phase Electrolysis Process Modelling: FromThe Bubble To The Electrochemical Cell Scale

Content Provider	Semantic Scholar
Author	Mandin, Ph. Roustan, Hervé Wüthrich, Rolf Hamburger, Jérôme Picard, Gérard
Copyright Year	2007
Abstract	During two-phase electrolysis for hydrogen, aluminium or fluor production, there are bubbles which are created at electrodes which imply a great hydrodynamic acceleration but also quite important electrical properties and electrochemical processes disturbance. There are few works concerning the local modelling of electrochemical processes during a two-phase electrolysis process. Nevertheless, effects like the anode effect, particularly expensive on the point of the process efficiency, should need a better understanding. The goal of the present work is to present the modelling and the numerical simulation of the gas production, from the single bubble scale to the macroscopic electrochemical cell, during the two-phase electrolysis process. Bubbles are motion sources for the electrolysis cell flow, and then hydrodynamic properties are strongly coupled with species transport and electrical performances. The presence of bubbles modifies these global and local properties: the electrolysis cell and the current density distribution are modified. The present work shows theoretical modelling on both scales and also performance changes during the two-phase electrolysis processes.
Starting Page	73
Ending Page	87
Page Count	15
File Format	PDF HTM / HTML
DOI	10.2495/ECOR070081
Volume Number	54
Alternate Webpage(s)	https://www.witpress.com/Secure/elibrary/papers/ECOR07/ECOR07008FU1.pdf
Alternate Webpage(s)	https://doi.org/10.2495/ECOR070081
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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