Mass transfer from highly soluble cylinders in cross flow: Some experimental results

Authors

  • P. K. Lohia,

    1. Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
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  • K. A. Narayan,

    1. Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
    Current affiliation:
    1. CSIRO, Division of Water Resources and Center for Ground Water Studies, Private Mail Bag 2, Glen Osmond, SA 5064, Australia
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  • R. P. Chhabra

    Corresponding author
    1. Department of Chemical Engineering, Indian Institute of Technology, Kanpur 208016, India
    • School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia
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Abstract

Mass transfer coefficients from highly soluble cylinders in cross flow orientation have been determined experimentally. The separate contributions arising from the different parts of the cylinder, namely, the front, plane sides and the rear have been delineated by masking various parts of the test specimen. Simple empirical expressions are devised for the components as well as for the total mass transfer coefficient. The present results compare favourably with the literature data in the following ranges of conditions: 90 ≤ Rep ≤ 850; 600 ≤ Sc ≤ 1100 and 70 ≤ Sh < 210.

Abstract

On a déterminé de façon expérimentale les coefficients de transfert de matière pour des cylindres hautement solubles orientés transversalement par rapport à l'écoulement. Les contributions de chaque partie du cylindre, à savoir l'avant, les cǒtés plans et l'arrière ont été délimitées en masquant diverses parties des spécimens testés. Des expressions empiriques simples sont établies pour chaque composante ainsi que pour le coefficient de transfert de matière total. Les résultats obtenus se comparent bien aux données publiées dans les gammes de conditions suivantes: 90 ≤ Rep ≤ 850; 600 ≤ Sc ≤ 1100 et 70 ≤ Sh ≤ 210.

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