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Journal of Applied Electrochemistry

, Volume 19, Issue 6, pp 940–942 | Cite as

Natural convection mass transfer at expanded metal electrodes of different structures

  • S. Piovano
  • U. Böhm
Short Communication

Keywords

Physical Chemistry Convection Mass Transfer Natural Convection Metal Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

A

mean mesh aperture

c0

electrolyte concentration

D

diffusivity

g

acceleration due to gravity

Ga

Galileo number=gL3/v3

Gr

Grashof number =gΔϱL3/ϱv2

k

mass transfer coefficient

L

electrode height

LD

long dimension of expanded metal

Rh

hydraulic radius=ε/Φ

Sc

Schmidt number=v/D

SD

small dimension of expanded metal

Sh

Sherwood number=kL/D

α*

densification coefficient =\(\frac{1}{\varrho }\frac{{d\varrho }}{{dc}}\)

ε

gas void fraction

εM

porosity of expanded metal

μ

dynamic viscosity

v

kinematic viscosity

θ

density

Φ

electrode area per unit volume

ψ

electrode area per unit net area

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References

  1. [1]
    S. Piovano, O. N. Cavatorta and U. Böhm,J. Appl. Electrochem. 18 (1988) 128.Google Scholar
  2. [2]
    S. Piovano and U. Böhm,J. Appl. Electrochem. 17 (1987) 127.Google Scholar
  3. [3]
    J. C. Bazan and A. J. Arvia,Electrochim. Acta 10 (1965) 1025.Google Scholar
  4. [4]
    U. Böhm,Anal. Asoc. Quim. Argentina 58 (1970) 127.Google Scholar
  5. [5]
    S. Piovano and U. Böhm,J. Appl. Electrochem. 17 (1987) 123.Google Scholar
  6. [6]
    L. Sigrist, O. Dossenbach and N. Ibl,Int. J. Heat Mass Transfer 22 (1979) 1393.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1989

Authors and Affiliations

  • S. Piovano
    • 1
  • U. Böhm
    • 1
  1. 1.Departmento de IndustriasUniversidad de Buenos AiresBuenos AiresArgentina

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