Abstract
The method of Ilias and Govind for modeling ultrafiltration was modified to model a flat sheet air gap membrane distillation module with empty channels. In the membrane distillation process, there is mutual dependence of the momentum and heat transport processes. It complicates the solution of the governing equations and often leads to using simplifications. The developed method allows solving hydrodynamic and heat transport equations without additional assumptions for decoupling the equations with permeation taken into account. Velocity and temperature distributions inside the membrane feed channel were obtained, as well as the concentration profiles of a sparingly soluble salt (barium sulfate). Severe temperature polarization, occurring under poor mixing conditions, has been shown. Supersaturation profiles of barium sulfate are shown to be dependent on the inlet temperature of the membrane channel, and at certain conditions a maximum value of the barium sulfate concentration lies in the bulk of the channel, rather than at membrane surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
