Membrane and Water Treatment

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Simulation of transport phenomena in porous membrane evaporators using computational fluid dynamics

  • Mohammadi, Mehrnoush (Faculty of Engineering, Department of Chemical Engineering, South Tehran Branch, Islamic Azad University) ;
  • Marjani, Azam (Department of Chemistry, Arak Branch, Islamic Azad University) ;
  • Asadollahzadeh, Mehdi (Faculty of Engineering, Department of Chemical Engineering, South Tehran Branch, Islamic Azad University) ;
  • Hemmati, Alireza (Faculty of Engineering, Department of Chemical Engineering, South Tehran Branch, Islamic Azad University) ;
  • Kazemi, Seyyed Masoud (Faculty of Chemistry, Department of Analytical Chemistry, North Tehran Branch, Islamic Azad University)
  • Received : 2015.08.16
  • Accepted : 2015.12.29
  • Published : 2016.03.25
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Abstract

A numerical simulation of membrane evaporation process was carried out in this work. The aim of simulation is to describe transport of water through porous membranes applicable to the concentration of aqueous solutions. A three-dimensional mathematical model was developed which considers transport phenomena including mass, heat, and momentum transfer in membrane evaporation process. The equations of model were then solved numerically using finite element method. The results of simulation in terms of evaporation flux were compared with experimental data, and confirmed the accuracy of model. Moreover, profile of pressure, concentration, and heat flux were obtained and analyzed. The results revealed that developed 3D model is capable of predicting performance of membrane evaporators in concentration of aqueous solutions.

Keywords

Acknowledgement

Supported by : Islamic Azad University

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