Spiral wound modules performance. An analytical solution, part I.

Avlonitis, S.; Hanbury, W.T.; Boudinar, M.Ben

doi:10.1016/0011-9164(91)85053-w

Cited by 34 publications

(9 citation statements)

References 9 publications

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“…Avlonitis et al (1991Avlonitis et al ( , 1993Avlonitis et al ( and 2007 have developed an explicit analytical steady state spatial model for spiral-wound modules based on the solutiondiffusion theory but assumed constant physical properties and neglected the diffusive mass transport along the axial and spiral dimensions in both channels. Boudinar et al (1992) have proposed another steady state model for spiral-wound RO module based on the solutiondiffusion model assuming the pressure loss in the two channels being a function of brine and permeate friction parameters (Darcy's law for porous media) and constant fluid density.…”

Section: Introductionmentioning

confidence: 99%

Steady state and dynamic modeling of spiral wound wastewater reverse osmosis process

Al‐Obaidi

Mujtaba

2016

Computers & Chemical Engineering

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Section: Introductionmentioning

confidence: 99%

Steady state and dynamic modeling of spiral wound wastewater reverse osmosis process

Al‐Obaidi

Mujtaba

2016

Computers & Chemical Engineering

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“…Validity of the thin film theory, with the approximation given by By using the assumptions and equations in Table I and the differential Eqs. (1) to ( 5 ) , after integration over the surface area of the module, the effective pressure profile has been found to be given by Eq. (6).…”

Section: Constant Fluid Propertiesmentioning

confidence: 99%

Flow Parameter Profiles in the Crossflow of a Two-Component Fluid through Semipermeable Membranes

Avlonitis

Papanikas

1997

Separation Science and Technology

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The analytical solution for spiral-wound module performance is a useful tool for developing explicit equations for the local values of variables like effective pressure, water flux, salt wall concentration, and velocities for seawater feed solutions. Depending on the operating conditions, knowledge of the local values of these variables could be useful to predict possible areas on the membrane surface where scale formation or fouling is likely to occur. Reasonable values for all variables have been found by using the developed equations at any point in the permeate and the feed side of the membrane. Although the method has been applied for spiral wound reverse osmosis membranes, it is believed that the same method could be used in similar hydrodynamic situations where flow through porous media is taking place.

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“…Furthermore, few models have been developed to characterise the transport phenomena in one and two dimensions of the spiral-wound RO process considering the removal of hightoxic compounds (such as dimethylphenol) from wastewater. This is compared to the several attempts of developing distributed models in one and two dimensions for seawater and brackish water desalination process (Avlonitis et al, 1991(Avlonitis et al, , 1993(Avlonitis et al, , 2007Boudinar et al, 1992;Geraldes et al, 2005;Senthilmurugan et al, 2005;Li, 2012). It is important to note that the two-dimensional modelling has the advantage of providing a facility for predicting the process performance more accurately than the one-dimensional modelling.…”

Section: Introductionmentioning

confidence: 99%

Simulation and sensitivity analysis of spiral wound reverse osmosis process for the removal of dimethylphenol from wastewater using 2-D dynamic model

Al‐Obaidi

Kara-Zaïtri

Mujtaba

2018

Journal of Cleaner Production

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Reverse Osmosis (RO) processes are readily used for removing pollutants, such as dimethylphenol from wastewater. A number of operating parameters must be controlled within the process constraints to achieve an efficient removal of such pollutants. Understanding the process dynamics is absolutely essential and is a pre-step for designing any effective controllers for any process. In this work, a detailed distributed two-dimensional dynamic (x and y dimensions and time) model for a spiral-wound RO process is developed extending the 2-D steady state model of the authors published earlier. The model is used to capture the dynamics of the RO process for the removal of dimethylphenol from wastewater. The performance of the 2-D model is compared with that obtained using 1-D dynamic model before the model is being used to investigate the performance of the RO process for a range of operating conditions.

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Spiral wound modules performance. An analytical solution, part I.

Cited by 34 publications

References 9 publications

Steady state and dynamic modeling of spiral wound wastewater reverse osmosis process

Steady state and dynamic modeling of spiral wound wastewater reverse osmosis process

Flow Parameter Profiles in the Crossflow of a Two-Component Fluid through Semipermeable Membranes

Simulation and sensitivity analysis of spiral wound reverse osmosis process for the removal of dimethylphenol from wastewater using 2-D dynamic model

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