Validation and Analysis of Forward Osmosis CFD Model in Complex 3D Geometries
| Autor: | Gruber, Mathias F., Johnson, Carl J., Tang, Chuyang, Jensen, Mogens H., Yde, Lars, Helix Nielsen, Claus |
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| Přispěvatelé: | School of Civil and Environmental Engineering, Singapore Membrane Technology Centre |
| Rok vydání: | 2012 |
| Předmět: |
Optimization
Osmosis Engineering model validation Forward osmosis external concentration polarization Mechanical engineering Filtration and Separation Wastewater treatment Water filtration Computational fluid dynamics lcsh:Chemical technology Desalination Article Water supply Polarization Mass transfer Chemical Engineering (miscellaneous) Osmotic pressure forward osmosis Computational Fluid Dynamics (CFD) internal concentration polarization three-dimensional simulations Seawater lcsh:TP1-1185 lcsh:Chemical engineering Process engineering Membranes Water transport business.industry Process Chemistry and Technology Three dimensional lcsh:TP155-156 Separation process Membrane Three dimensional computer graphics business Wave power |
| Zdroj: | Membranes Membranes, Vol 2, Iss 4, Pp 764-782 (2012) Membranes; Volume 2; Issue 4; Pages: 764-782 Gruber, M F, Gruber, M F, Johnson, C J, Tang, C, Jensen, M H, Yde, L & Helix Nielsen, C 2012, ' Validation and analysis of forward osmosis CFD model in complex 3D geometries ', Membranes, vol. 2, no. 4, pp. 764-782 . https://doi.org/10.3390/membranes2040764 |
| ISSN: | 2077-0375 |
| DOI: | 10.3390/membranes2040764 |
| Popis: | In forward osmosis (FO), an osmotic pressure gradient generated across a semi-permeable membrane is used to generate water transport from a dilute feed solution into a concentrated draw solution. This principle has shown great promise in the areas of water purification, wastewater treatment, seawater desalination and power generation. To ease optimization and increase understanding of membrane systems, it is desirable to have a comprehensive model that allows for easy investigation of all the major parameters in the separation process. Here we present experimental validation of a computational fluid dynamics (CFD) model developed to simulate FO experiments with asymmetric membranes. Simulations are compared with experimental results obtained from using two distinctly different complex three-dimensional membrane chambers. It is found that the CFD model accurately describes the solute separation process and water permeation through membranes under various flow conditions. It is furthermore demonstrated how the CFD model can be used to optimize membrane geometry in such as way as to promote the mass transfer. © 2012 by the authors; licensee MDPI, Basel, Switzerland. |
| Databáze: | OpenAIRE |
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