Interaction of dispersed phase with concentration polarization |
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| Authors: | Madan G. Parvatiyar |
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| Affiliation: | Department of Chemical Engineering, University of Cincinnati, Cincinnati, OH 45221, USA |
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| Abstract: | The effect of a dispersed phase in reducing the concentration polarization in a membrane tube has been studied. The presence of a dispersed phase seems to have an effect in controlling the size of eddy formation and the rate of energy dissipation in the fluid medium. The role of eddy length and the energy dissipation rate on the mass transfer coefficient is discussed. Theoretical results obtained for the mass transfer coefficient and for the concentration polarization in the case of gelatin ultrafiltration are compared with the existing experimental results. The theoretical predictions seem to be in good agreement with the experimentally observed results. |
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| Keywords: | Concentration polarization Ultrafiltration Energy dissipation rate Microfiltration Ceramic membrane Turbulence structure |
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