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Turbulent fluid flow and electrochemical mass transfer in an annular duct with an obstruction |
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| Authors: | G. Weyns G. Nelissen J. G. A. Pembery P. Maciel J. Deconinck H. Deconinck M. A. Patrick A. A. Wragg |
| Affiliation: | (1) Vakgroep Elektrotechniek, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium;(2) Elsyca NV, Vaartdijk 3, 3018 Wijgmaal, Belgium;(3) Flowmasters Ltd., The Maltings, Pury Hill Business Park, Alderton Road, Towcester, NN12 7TB, UK;(4) von Karman Institute for Fluid Dynamics, Waterloosesteenweg 72, 1630 Sint-Genesius-Rode, Belgium;(5) Institut Catholique d’Arts et Metiers, 6 rue Auber, 59046 Lille Cedex, France;(6) Department of Engineering, University of Exeter, Exeter, EX4 4QF, UK |
| Abstract: | A so-called blockage geometry consisting of a rod with a fin positioned concentrically within a pipe is used to asses the capabilities of numerical turbulent flow and mass transfer models to predict the turbulent mass transfer coefficients. Measurements of the mass transfer coefficient have been performed for a range of fin diameters and flow rates. The limiting diffusion current measurements were performed using the ferri-ferrocyanide system and nickel electrodes. Different mass transfer turbulence models are used for the calculations and the results are compared with the measurements. The influence of flow rate and fin diameter on the mass transfer rate is examined. |
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