Unconventionally Modeling Analysis of Permeate Flux for Ultrafiltration in Hollow-Fiber Modules
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In this article, the authors analyzed the permeate flux with the exponential model, hyperbolic-tangent model, and error-function model for polyvinyl alcohol (PVA) aqueous solution.Abstract:
Membrane ultrafiltration of macromolecular solutions is usually analyzed with the gel polarization model, the osmotic pressure model, and the resistance-in-series model. The disadvantages of these conventional models are, respectively, the limited range of application, the mathematical difficulty in treatment and the incorrect definition of the growth of the concentration polarization resistance. In the present work, however, the permeate flux was analyzed with the exponential model, hyperbolic-tangent model, and error-function model. The development of these models is based on three essential ultrafiltration behaviors, and the exponential-function and hyperbolic-tangent models correlate well with the experimental results for polyvinyl alcohol (PVA) aqueous solution.read more
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CFD analysis of particle deposition in the spacer-filled membrane module
TL;DR: In this paper, particle deposition in spacer-filled membrane modules is investigated using a computational fluid dynamic (CFD) technique, where flow field and particle transport in the channels with permeable membrane surfaces are calculated using the commercial available CFD software FLUENT ®.
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CFD analysis of particle deposition in the spacer-filled membrane module
TL;DR: In this paper, particle deposition in spacer-filled membrane modules is investigated using a computational fluid dynamic (CFD) technique, where flow field and particle transport in the channels with permeable membrane surfaces are calculated using the commercial available CFD software FLUENT ®.
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