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Titolo:
A new technique for the visualization of the concentration boundary layer in an electrodialysis cell
Autore:
Perez-Herranz, V; Guinon, JL; Garcia-Anton, J;
Indirizzi:
Univ Politecn Valencia, ETSI Ind, Dept Ingn Quim & Nucl, E-46071 Valencia,Spain Univ Politecn Valencia Valencia Spain E-46071 cl, E-46071 Valencia,Spain
Titolo Testata:
JOURNAL OF APPLIED ELECTROCHEMISTRY
fascicolo: 7, volume: 30, anno: 2000,
pagine: 809 - 816
SICI:
0021-891X(200007)30:7<809:ANTFTV>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ION-EXCHANGE MEMBRANE; HOLOGRAPHIC-INTERFEROMETRY; NATURAL-CONVECTION; LIMITING CURRENT; FLOW;
Keywords:
concentration boundary layer; electrodialysis; flow visualization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Perez-Herranz, V Univ Politecn Valencia, ETSI Ind, Dept Ingn Quim & Nucl, POB 22012, E-46071 Valencia, Spain Univ Politecn Valencia POB 22012 Valencia Spain E-46071
Citazione:
V. Perez-Herranz et al., "A new technique for the visualization of the concentration boundary layer in an electrodialysis cell", J APPL ELEC, 30(7), 2000, pp. 809-816

Abstract

A new method for the visualization of the concentration boundary layer is described. The technique involves the use of a dilute solution of an indicator which reacts with H+ formed on the membrane surface to form a coloured trace when the electrodialysis cell is operating above the limiting currentdensity. The thickness of the concentration boundary layer determined by the visualization method agrees well with results obtained from limiting current density measurements and theoretical predictions. The visualization method proposed in this work can be used for understanding the transport taking place between a solid wall and a liquid in steady and unsteady flow processes.

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Documento generato il 29/03/20 alle ore 15:08:04