Coupling CFD with a one-dimensional model to predict the performance of reverse electrodialysis stacks

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26 Citazioni (Scopus)

Abstract

Different computer-based simulation models, able to predict the performance of Reverse ElectroDialysis (RED) systems, are currently used to investigate the potentials of alternative designs, to orient experimental activities and to design/optimize prototypes. The simulation approach described here combines a one-dimensional modelling of a RED stack with a fully three-dimensional finite volume modelling of the electrolyte channels, either planar or equipped with different spacers or profiled membranes. An advanced three-dimensional code was used to provide correlations for the friction coefficient (based on 3-D solutions of the continuity and Navier-Stokes equations) and the Sherwood numbers (based on 3-D solutions of a scalar transport equation), as well as to test simple models for the Ohmic resistances (based on 3-D solutions of a Laplace equation for the electrical potential). These results were integrated with empirical correlations for the transport properties of electrolytes and membranes, and were used as the input for the higher scale model. The overall model was validated by comparison with experimental data obtained in laboratory-scale RED stacks under controlled conditions. This combined approach constitutes a fully predictive, potentially very accurate, and still extremely fast-running, tool for the approximate simulation of all the main variables, suitable for performance prediction and optimization studies.
Lingua originaleEnglish
pagine (da-a)595-610
Numero di pagine16
RivistaJournal of Membrane Science
Volume541
Stato di pubblicazionePublished - 2017

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electrodialysis
Electrodialysis
charge flow devices
Computational fluid dynamics
Electrolytes
electrolytes
membranes
performance prediction
Membranes
Laplace equation
Friction
simulation
scale models
Electric Impedance
continuity
Computer Simulation
Navier-Stokes equation
spacers
coefficient of friction
Acoustic impedance

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cita questo

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title = "Coupling CFD with a one-dimensional model to predict the performance of reverse electrodialysis stacks",
abstract = "Different computer-based simulation models, able to predict the performance of Reverse ElectroDialysis (RED) systems, are currently used to investigate the potentials of alternative designs, to orient experimental activities and to design/optimize prototypes. The simulation approach described here combines a one-dimensional modelling of a RED stack with a fully three-dimensional finite volume modelling of the electrolyte channels, either planar or equipped with different spacers or profiled membranes. An advanced three-dimensional code was used to provide correlations for the friction coefficient (based on 3-D solutions of the continuity and Navier-Stokes equations) and the Sherwood numbers (based on 3-D solutions of a scalar transport equation), as well as to test simple models for the Ohmic resistances (based on 3-D solutions of a Laplace equation for the electrical potential). These results were integrated with empirical correlations for the transport properties of electrolytes and membranes, and were used as the input for the higher scale model. The overall model was validated by comparison with experimental data obtained in laboratory-scale RED stacks under controlled conditions. This combined approach constitutes a fully predictive, potentially very accurate, and still extremely fast-running, tool for the approximate simulation of all the main variables, suitable for performance prediction and optimization studies.",
author = "Luigi Gurreri and Michele Ciofalo and {Di Liberto}, Massimiliano and Andrea Cipollina and Alessandro Tamburini and {La Cerva}, {Mariagiorgia Floriana} and Micale, {Giorgio Domenico Maria}",
year = "2017",
language = "English",
volume = "541",
pages = "595--610",
journal = "Journal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",

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TY - JOUR

T1 - Coupling CFD with a one-dimensional model to predict the performance of reverse electrodialysis stacks

AU - Gurreri, Luigi

AU - Ciofalo, Michele

AU - Di Liberto, Massimiliano

AU - Cipollina, Andrea

AU - Tamburini, Alessandro

AU - La Cerva, Mariagiorgia Floriana

AU - Micale, Giorgio Domenico Maria

PY - 2017

Y1 - 2017

N2 - Different computer-based simulation models, able to predict the performance of Reverse ElectroDialysis (RED) systems, are currently used to investigate the potentials of alternative designs, to orient experimental activities and to design/optimize prototypes. The simulation approach described here combines a one-dimensional modelling of a RED stack with a fully three-dimensional finite volume modelling of the electrolyte channels, either planar or equipped with different spacers or profiled membranes. An advanced three-dimensional code was used to provide correlations for the friction coefficient (based on 3-D solutions of the continuity and Navier-Stokes equations) and the Sherwood numbers (based on 3-D solutions of a scalar transport equation), as well as to test simple models for the Ohmic resistances (based on 3-D solutions of a Laplace equation for the electrical potential). These results were integrated with empirical correlations for the transport properties of electrolytes and membranes, and were used as the input for the higher scale model. The overall model was validated by comparison with experimental data obtained in laboratory-scale RED stacks under controlled conditions. This combined approach constitutes a fully predictive, potentially very accurate, and still extremely fast-running, tool for the approximate simulation of all the main variables, suitable for performance prediction and optimization studies.

AB - Different computer-based simulation models, able to predict the performance of Reverse ElectroDialysis (RED) systems, are currently used to investigate the potentials of alternative designs, to orient experimental activities and to design/optimize prototypes. The simulation approach described here combines a one-dimensional modelling of a RED stack with a fully three-dimensional finite volume modelling of the electrolyte channels, either planar or equipped with different spacers or profiled membranes. An advanced three-dimensional code was used to provide correlations for the friction coefficient (based on 3-D solutions of the continuity and Navier-Stokes equations) and the Sherwood numbers (based on 3-D solutions of a scalar transport equation), as well as to test simple models for the Ohmic resistances (based on 3-D solutions of a Laplace equation for the electrical potential). These results were integrated with empirical correlations for the transport properties of electrolytes and membranes, and were used as the input for the higher scale model. The overall model was validated by comparison with experimental data obtained in laboratory-scale RED stacks under controlled conditions. This combined approach constitutes a fully predictive, potentially very accurate, and still extremely fast-running, tool for the approximate simulation of all the main variables, suitable for performance prediction and optimization studies.

UR - http://hdl.handle.net/10447/242829

UR - http://www.sciencedirect.com/science/article/pii/S0376738817314138?via=ihub

M3 - Article

VL - 541

SP - 595

EP - 610

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

ER -