Journal ArticleDOI
CFD modeling for flow and mass transfer in spacer-obstructed membrane feed channels
TLDR
In this paper, the effect of spacer geometry on fluid dynamics and mass transfer in feed channels of spiral wound membranes has been investigated, and three-dimensional computational fluid dynamics (CFD) simulations reveal significant influence of the spacer geometric parameters such as filament spacing, thickness, and flow attack angle on wall shear rates and Mass Transfer coefficients.About:
This article is published in Journal of Membrane Science.The article was published on 2009-01-20. It has received 147 citations till now. The article focuses on the topics: Mass flow & Mass transfer coefficient.read more
Citations
More filters
Journal ArticleDOI
Electrodialysis for water desalination: A critical assessment of recent developments on process fundamentals, models and applications
A Campione,Luigi Gurreri,Michele Ciofalo,Giorgio Micale,Alessandro Tamburini,Andrea Cipollina +5 more
TL;DR: The fundamentals of the ED process are presented, highlighting limitations and potentialities in the water and energy industry and the most recent applications of ED-related processes are presented.
Journal ArticleDOI
Effect of feed spacer induced membrane deformation on the performance of pressure retarded osmosis (PRO): Implications for PRO process operation
TL;DR: In this paper, the effect of feed spacer geometry on membrane deformation and the resulted pressure retarded osmosis (PRO) performance was systematically investigated and it was observed that feed spacers with larger openings induced more severe deformation at higher applied pressures.
Journal ArticleDOI
Three-dimensional modeling of biofouling and fluid dynamics in feed spacer channels of membrane devices
TL;DR: In this paper, a 3D computational model that couples fluid dynamics, solutes transport and biofouling by biofilm formation in NF and RO membrane modules is presented. But the model is limited to 3D spacer geometry.
Journal ArticleDOI
Proper accounting of mass transfer resistances in forward osmosis: Improving the accuracy of model predictions of structural parameter
TL;DR: In this article, the authors proposed a mathematical flux model in which ECP effects are accounted for, so that structural parameter (S ) can be more accurately measured and showed that changes in cross-flow velocity impact internal concentration polarization due to induced mixing within the support layer.
Journal ArticleDOI
CFD prediction of concentration polarization phenomena in spacer-filled channels for reverse electrodialysis
TL;DR: In this paper, the authors investigated the dependence of concentration polarization and pressure drop on flow rate, feeds concentration, current density and spacer features in reverse electrodialysis (SGP-RE) systems.
References
More filters
Journal ArticleDOI
Mass transfer and pressure loss in spiral wound modules
G. Schock,A. Miquel +1 more
TL;DR: In this paper, the authors present some experimental data for pressure drop and mass transfer characteristics in spiral wound elements and in spacer-filled flow channels and the experimental results and the computer program were used to calculate the performance of a spiral wound element and its possible design variations.
Journal ArticleDOI
Spacer characterization and pressure drop modelling in spacer-filled channels for ultrafiltration
TL;DR: In this article, the authors developed a correlation that allows the characterization and design of net-like feed channel spacers in any combination of geometric characteristics: angle, mesh size, thickness, strand size and voidage.
Journal ArticleDOI
Optimization of commercial net spacers in spiral wound membrane modules
TL;DR: In this article, the authors used CFD simulations to determine mass transfer coefficients and power consumption of commercial net spacers and optimized the geometry of the spacer geometries in terms of mass transfer and energy consumption.
Journal ArticleDOI
Direct numerical simulation of flow in spacer-filled channels: Effect of spacer geometrical characteristics
TL;DR: In this paper, a numerical and experimental study is presented, aimed at obtaining a better understanding of transport phenomena in spirally wound membrane elements, where feed flow spacers are used to enhance mass transport characteristics and mitigate fouling and concentration polarization phenomena.
Journal ArticleDOI
CFD simulations of net-type turbulence promoters in a narrow channel
TL;DR: In this paper, the effect of spacer characteristics can be obtained by computational fluid dynamics, and the results show that both high shear stress regions and eddies are present in the channel due to the spacer cylinders.
Related Papers (5)
Flow visualization through spacer filled channels by computational fluid dynamics I. ☆: Pressure drop and shear rate calculations for flat sheet geometry
Sandeep K. Karode,Ashwani Kumar +1 more