Optimization of non-woven spacers by CFD and validation by experiments

Impact of different spacer filament geometries on concentration polarization control in narrow membrane channel

“…There are several turbulence models which can be used to solve the time-averaged turbulent flow model (5)- (8). These models consist of classical algebraic model, single equation model, two equations model and five equations model, i.e.…”

“…Li et al had investigated on the relation between the Sherwood and power numbers using 3D CFD transient models for low-Reynolds flows in non-woven spacer-filled channel [8,9]. The study had revealed an optimum ratio for channel height over spacer length to yield maximum mass transfer coefficient with moderate power consumption.…”

Performance of spiral-wound membrane modules in organic solvent nanofiltration – Fluid dynamics and mass transfer characteristics

“…To determine the mass transfer coefficient, three main methods have been used in the literature [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]: (i) direct measurements, which made use of optical or electrochemical methods; (ii) indirect measurements, which were based on regression of membrane performance data using a combination of film theory and membrane transport models; and (iii) computational fluid dynamics (CFD) simulations, which were based on a priori simulation of the module geometry. The pressure drop characteristics of a module were usually determined either from direct measurements, using accurate pressure gauges, or via CFD simulations [9,[12][13][14][15][16]23].…”

Multi-scale modelling of OSN batch concentration with spiral-wound membrane modules using OSN Designer

“…Many studies [Schock and Miquel, 1987;Schwinge et al, 2000;Li et al, 2002;Fimbres-Weihs and Wiley, 2007;Koutsou et al 2009] have been published on the fluid dynamics and mass transfer characteristics in spacer-filled channels, which mimic the channel of spiral-wound membrane modules, in aqueous solutions. Various dimensionless correlations for the friction coefficient and the Sherwood number were generated.…”