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Numerical and experimental study of the effect of gas evolution in electrolytic pickling
KTH, School of Engineering Sciences (SCI), Centres, Faxén Laboratory. KTH, School of Engineering Sciences (SCI), Mechanics.
University of Pennsylvania, Dept. Mech. Eng. and Appl. Mechanics.
KTH, School of Engineering Sciences (SCI), Centres, Faxén Laboratory. KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-8318-1251
KTH, School of Engineering Sciences (SCI), Mechanics, Fluid Mechanics of Industrial Processes.
2006 (English)In: Journal of Applied Electrochemistry, ISSN 0021-891X, E-ISSN 1572-8838, Vol. 36, no 12, 1367-1379 p.Article in journal (Refereed) Published
Abstract [en]

As part of a progressive approach to model the electrolytic pickling process, this paper focuses on the important aspect of hydrogen and oxygen gas evolution on the electrodes and on the steel strip being pickled. The system considered consists of type 316 stainless steel pickled in aqueous sodium sulphate, with lead anodes and stainless steel cathodes. The mathematical model is two-dimensional steady-state, and includes the differential equations describing the effect of migration, giving the potential and current fields, and the Tafel kinetic rate expressions for hydrogen and oxygen gas generation. Experiments were conducted to obtain a better understanding of the process and for model validation. Good agreement between the experimental measurements of the global current efficiency and the model predictions was obtained.

Place, publisher, year, edition, pages
2006. Vol. 36, no 12, 1367-1379 p.
Keyword [en]
corrosion, electrolytic bubble generation, electrolytic pickling, stainless steel, 2-phase flow model, electrochemical-cell, hydrogen evolution, evolving electrodes, ohmic resistance, stainless-steels, bubbles, conductivity, convection, layer
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-16215DOI: 10.1007/s10800-006-9201-4ISI: 000242938400009Scopus ID: 2-s2.0-33751071579OAI: oai:DiVA.org:kth-16215DiVA: diva2:334257
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Mathematical modelling and experimental studies of the electrolytic pickling of stainless steel
Open this publication in new window or tab >>Mathematical modelling and experimental studies of the electrolytic pickling of stainless steel
2005 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2005. vi, 54 p.
Series
Trita-MEK, ISSN 0348-467X ; 2005:20
Keyword
electrolytic pickling, mass transfer, current distribution, electrolysis, two-phase flow
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-591 (URN)
Public defence
2006-01-27, Sal F3, Lindstedtsvägen 26, Stockholm, 13:15
Opponent
Supervisors
Note
QC 20101027Available from: 2006-01-16 Created: 2006-01-16 Last updated: 2010-10-27Bibliographically approved

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Vynnycky, Michael

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