Mass Transfer at the Confining Wall of an Electrochemical Cell in the Presence of Twisted Tapes

The IUP Journal of Chemical Engineering, Vol. III, No. 1, pp. 23-34, March 2011

Posted: 4 Jul 2011

See all articles by K. V. Ramesh

K. V. Ramesh

Andhra University

B.S. Subramanyam

VITAM

M. S. N. Murty

Gayatri Vidya Parishad (GVP) College of Engineering

B. Surendra Babu

GITAM University

Date Written: July 4, 2011

Abstract

Mass transfer coefficients between a liquid and column wall of an electrochemical cell were computed from the limiting current measurements made at the point electrodes fixed flush with the inner surface of the column wall. Twisted tapes of varying width and pitch served as insert promoter elements. The employed test section, which acted as electrochemical cell, consisted of a perspex tube of 6.73 cm inner diameter. 34 point electrodes were fixed to the test section. The liquid used was an electrolyte belonging to the Ferri-Ferrocyanide redox system. Addition of Carboxy Methyl Cellulose (CMC) sodium sulphate increased the viscosity of the solution. Analysis of the data obtained revealed that an increase in tape width increased the mass transfer coefficient. A decrease in mass transfer coefficient was observed with increase in tape pitch and CMC concentration. The data were correlated using regression analysis.

Keywords: Liquid-wall mass transfer, Ionic mass transfer, Twisted tape, Turbulent promoter

Suggested Citation

Ramesh, K. V. and Subramanyam, B.S. and Murty, M. S. N. and Babu, B. Surendra, Mass Transfer at the Confining Wall of an Electrochemical Cell in the Presence of Twisted Tapes (July 4, 2011). The IUP Journal of Chemical Engineering, Vol. III, No. 1, pp. 23-34, March 2011. Available at SSRN: https://ssrn.com/abstract=1878244

K. V. Ramesh (Contact Author)

Andhra University ( email )

Visakhapatnam, Andhra Pradesh
India

B.S. Subramanyam

VITAM ( email )

Visakhapatnam, Andhra Pradesh 531173
India

M. S. N. Murty

Gayatri Vidya Parishad (GVP) College of Engineering ( email )

Madhurawada
Visakhapatnam
Visakhapatnam, Andhra Pradesh 530048
India

B. Surendra Babu

GITAM University ( email )

Visakhapatnam
Gandhi Nagar
530045
India

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