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Producing water from saline streams using membrane distillation: Modeling and optimization using CFD and design expert

Shokrollahi, M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1002/er.5578
  3. Publisher: John Wiley and Sons Ltd , 2020
  4. Abstract:
  5. Due to the increasing need for drinking water in the world, various membrane processes have been developing significantly over the past several years. The process of membrane distillation is one of the non-isothermal processes that cause steam to pass from the membrane due to the difference in temperature and the resulting difference in vapor pressure. Due to the lack of precision in the amount of flux and thermal efficiency in various operating conditions the membrane distillation process still needs development. This article attempted to examine the effects of flowrate, temperature, and module length on the performance of the membrane distillation process using computational fluid dynamics simulation and experiments design method. Since each of these parameters interacts with other parameters, the design of experiments method was used for numerical modeling of flux and thermal efficiency. The results showed that increasing flowrate, inlet feed temperature, and decreasing length of the membrane module increase the water flux and thermal efficiency. Numerical flux modeling results show that temperature (T), module length (L), and interaction module length-temperature (L-T) parameters have the most influence on flux and module length (L), temperature (T) and quadratic relation of module length (L2) parameters have the greatest effect on thermal efficiency, respectively. © 2020 John Wiley & Sons Ltd
  6. Keywords:
  7. CFD ; Design of experiments method ; Diffusion ; Mass transfer ; Computational fluid dynamics ; Design of experiments ; Distillation ; Distilleries ; Efficiency ; Numerical methods ; Potable water ; Saline water ; Computational fluid dynamics simulations ; Experiments design ; Interaction modules ; Membrane distillation ; Modeling and optimization ; Non-isothermal process ; Operating condition ; Thermal efficiency ; Membranes
  8. Source: International Journal of Energy Research ; Volume 44, Issue 11 , 2020 , Pages 8841-8853
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/er.5578