Modelling the membrane clarification of pomegranate juice with computational fluid dynamics
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The fluid behaviour of pomegranate juice—specifically, its velocity and pressure distribution form—can affect yield during the clarification process. This study used computational fluid dynamics (CFD) to predict velocity and pressure patterns in the membrane module during the clarification of pomegranate juice. Module geometry was plotted using GAMBIT software, and the problem was solved using FLUENT 6.2. The results showed that declines in velocity in the feed channel before fouling creation were greater than after fouling creation. Also, maximum value for velocity at the start of the process was lower than at the final stages. Moreover, the feed entrance and retentate exit must have a parallel pattern with the membrane surface to avoid membrane damage from high pressure at the feed entrance. Establishing this parallel pattern allows all surfaces of the membrane to be used for effective clarification.
KeywordsClarification CFD Computational fluid dynamics Membrane Modeling Pomegranate
- 1.Mirsaeedghazi H, Mousavi SM, Emam-Djomeh Z, Rezaei K, Aroujalian A, Navidbakhsh M (2010) Comparison between ultrafiltration and microfiltration in the clarification of pomegranate juice. J Food Process Eng (accepted paper)Google Scholar