A two-dimensional model for the spiral wound reverse osmosis membrane module

Park, Jun Hyung; Lee, Kwang Soon

doi:10.1016/j.desal.2017.05.006

Cited by 11 publications

(3 citation statements)

References 24 publications

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“…The other software, including MATLAB [102,104,117], ROSA [149][150][151], NUMECA [152], MUSUBI [153], was used rarely. Also, in work [154], it was carried out the analysis of the possibility of applying the RO seawater desalination by the commercial systems CORMIX, VISUAL PLUMES, and VISJET.…”

Section: F15mentioning

confidence: 99%

Simulation of Reverse Osmosis Process: Novel Approaches and Development Trends

Huliienko

Korniyenko

Muzyka

et al. 2022

JES

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Reverse osmosis is an essential technological separation process that has a large number of practical applications. The mathematical simulation is significant for designing and determining the most effective modes of membrane equipment operation and for a deep understanding of the processes in membrane units. This paper is an attempt at systematization and generalizing the results of the investigations dedicated to reverse osmosis simulation, which was published from 2011 to 2020. The main approaches to simulation were analyzed, and the scope of use of each of them was delineated. It was defined that computational fluid dynamics was the most used technique for reverse osmosis simulation; the intensive increase in using of molecular dynamics methods was pointed out. Since these two approaches provide the deepest insight into processes, it is likely that they will further be widely used for reverse osmosis simulations. At the same time, for the simulation of the membrane plant, it is reasonable to use the models that required the simplest solutions methods. The solution-diffusion model appears to be the most effective and flexible for these purposes. Therefore, this model was widely used in considering the period. The practical problems solved using each of the considered approaches were reviewed. Moreover, the software used for the solution of the mathematical models was regarded.

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Section: F15mentioning

confidence: 99%

Simulation of Reverse Osmosis Process: Novel Approaches and Development Trends

Huliienko

Korniyenko

Muzyka

et al. 2022

JES

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“…The mass transfer resistance from the bulk phase to the membrane surface in the retentate side determines the importance of concentration polarization. It can be rigorously described by solving the momentum and continuity balance equations, 67,68 which provide the concentration and velocity profiles. The concentration profile then depicts the concentration polarization effect.…”

Section: Model Descriptionmentioning

confidence: 99%

Mathematical modeling and parameter estimation of MFI membranes for para/ortho‐xylene separation

et al. 2021

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“…(5) is valid independently of the impermeable extension length. Some studies considered L m > 30 mm in the flat-sheet RO system [4,5,27], while several studies on the spiral-wound module considered the usual values of L m lower than 30 mm [3,23,25,28,29]. In this case, the hypothesis of a zero concentration gradient at the outflow is not justified.…”

Section: Study Of Boundary Conditions At the Channel Outflowmentioning

confidence: 99%

Effects of a zero normal-concentration-gradient outflow boundary condition on concentration polarization in a CFD study of a reverse osmosis process

Hamdache

Belkacem

2018

J Braz. Soc. Mech. Sci. Eng.

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Numerically modeling only part of the reverse osmosis channel and assuming that the concentration gradient is zero at the outflow is common practice. In the present work, the effect of this hypothesis on concentration polarization and its validity are numerically investigated. The reverse osmosis system considered consists of two parallel walls. The top wall is assumed to be impermeable and a membrane is placed at the bottom wall. To investigate the hypothesis of zero concentration gradient at the outflow, two different cases are considered. In the first case, the membrane occupies the full-bottom wall, while in the second case, the membrane is followed by an impermeable wall section to ensure a steady-state concentration at the channel outlet. The finite volume method is used to solve the governing equations. In order to check the accuracy of our computational code, the simulated results for the first case without an impermeable section are validated against numerical simulations available in the literature. The simulation results show that the choice of the boundary condition at the outlet channel considered by most authors is not always obvious. This assumption leads to an under-evaluation of the membrane concentration. The deviation reaches 20% for short membrane lengths and low feed concentrations.

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A two-dimensional model for the spiral wound reverse osmosis membrane module

Cited by 11 publications

References 24 publications

Simulation of Reverse Osmosis Process: Novel Approaches and Development Trends

Simulation of Reverse Osmosis Process: Novel Approaches and Development Trends

Mathematical modeling and parameter estimation of MFI membranes for para/ortho‐xylene separation

Effects of a zero normal-concentration-gradient outflow boundary condition on concentration polarization in a CFD study of a reverse osmosis process

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