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Amusat O, Atia AA, Dudchenko AV, Bartholomew TV. Modeling Framework for Cost Optimization of Process-Scale Desalination Systems with Mineral Scaling and Precipitation. ACS ES&T ENGINEERING 2024; 4:1028-1047. [PMID: 38751651 PMCID: PMC11091887 DOI: 10.1021/acsestengg.3c00537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/26/2024] [Accepted: 01/30/2024] [Indexed: 05/18/2024]
Abstract
Cost-optimization models are powerful tools for evaluating emerging water treatment processes. However, to date, optimization models do not incorporate detailed chemical reaction phenomena, limiting the assessment of pretreatment and mineral scaling. Moreover, novel approaches for high-salinity and high-recovery desalination are typically proposed without direct quantification of pretreatment needs or mineral scaling. This work addresses a critical gap in the literature by presenting a modeling framework that includes complex water chemistry predictions with process-scale optimization. We use this approach to conduct a technoeconomic assessment on a conceptual high-recovery treatment train that includes chemical pretreatment (i.e., soda ash softening and recarbonation) and membrane-based desalination (i.e., standard and high-pressure reverse osmosis). We demonstrate how to develop and integrate accurate multidimensional surrogate models for predicting precipitation, pH, and mineral scaling tendencies. Our findings show that cost-optimal results balance the costs of pretreatment with reverse osmosis system design. Optimizing across a range of water recoveries (i.e., 50-90%) reveals multiple cost-optimal schemas that vary the chemical dosing in pretreatment and the design and operation of reverse osmosis. Our results reveal that pretreatment costs can be more than double the cost of the primary desalination process at high recoveries due to the extensive pretreatment required to control scaling. This work emphasizes the importance of and provides a framework for including chemistry and mineral scaling predictions in the evaluation of emerging technologies in high-recovery desalination.
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Affiliation(s)
- Oluwamayowa
O. Amusat
- Lawrence
Berkeley National Laboratory (LBNL), 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Adam A. Atia
- National
Energy Technology Laboratory (NETL), Pittsburgh, Pennsylvania 15236, United States
- NETL
Support Contractor, Pittsburgh, Pennsylvania 15236, United States
| | - Alexander V. Dudchenko
- SLAC
National Accelerator Laboratory, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
| | - Timothy V. Bartholomew
- National
Energy Technology Laboratory (NETL), Pittsburgh, Pennsylvania 15236, United States
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2
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Qamar A, Kerdi S, Vrouwenvelder JS, Ghaffour N. Airfoil-shaped filament feed spacer for improved filtration performance in water treatment. Sci Rep 2023; 13:10798. [PMID: 37402781 DOI: 10.1038/s41598-023-37885-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/29/2023] [Indexed: 07/06/2023] Open
Abstract
Optimal spacer design enhances the filtration performance in spiral-wound modules by controlling the local hydrodynamics inside the filtration channel. A novel airfoil feed spacer design fabricated using 3D-printing technology is proposed in this study. The design is a ladder-shaped configuration with primary airfoil-shaped filaments facing the incoming feed flow. The airfoil filaments are reinforced by cylindrical pillars supporting the membrane surface. Laterally, all the airfoil filaments are connected by thin cylindrical filaments. The performances of the novel airfoil spacers are evaluated at Angle of Attack (AOA) of 10° (A-10 spacer) and 30° (A-30 spacer) and compared with commercial (COM) spacer. At fixed operating conditions, simulations indicate steady-state hydrodynamics inside the channel for A-10 spacer, while an unsteady state is found for A-30 spacer. Numerical wall shear stress for airfoil spacers is uniformly distributed and has a higher magnitude than the COM spacer. A-30 spacer design is the most efficient in ultrafiltration process with enhanced permeate flux (228%) and reduced specific energy consumption (23%) and biofouling development (74%) as characterized by Optical Coherence Tomography. Results systematically demonstrate the influential role of airfoil-shaped filaments for feed spacer design. Modifying AOA allows localized hydrodynamics to be effectively controlled according to the filtration type and operating conditions.
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Affiliation(s)
- Adnan Qamar
- Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Sarah Kerdi
- Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
| | - Johannes S Vrouwenvelder
- Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Environmental Science and Engineering Program, Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Noreddine Ghaffour
- Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
- Environmental Science and Engineering Program, Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
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Da Conceicao M, Nemetz L, Rivero J, Hornbostel K, Lipscomb G. Gas Separation Membrane Module Modeling: A Comprehensive Review. MEMBRANES 2023; 13:639. [PMID: 37505005 PMCID: PMC10384872 DOI: 10.3390/membranes13070639] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023]
Abstract
Membrane gas separation processes have been developed for diverse gas separation applications that include nitrogen production from air and CO2 capture from point sources. Membrane process design requires the development of stable and robust mathematical models that can accurately quantify the performance of the membrane modules used in the process. The literature related to modeling membrane gas separation modules and model use in membrane gas separation process simulators is reviewed in this paper. A membrane-module-modeling checklist is proposed to guide modeling efforts for the research and development of new gas separation membranes.
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Affiliation(s)
- Marcos Da Conceicao
- Department of Chemical Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Leo Nemetz
- Department of Chemical Engineering, University of Toledo, Toledo, OH 43606, USA
| | - Joanna Rivero
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Katherine Hornbostel
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Glenn Lipscomb
- Department of Chemical Engineering, University of Toledo, Toledo, OH 43606, USA
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Lin W, Li D, Wang Q, Wang XM, Huang X. Dynamic evolution of membrane biofouling in feed channels affected by spacer–membrane clearance and the induced hydrodynamic conditions. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sutariya B, Sargaonkar A, Raval H. Methods of visualizing hydrodynamics and fouling in membrane filtration systems: recent trends. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2089585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bhaumik Sutariya
- Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Aabha Sargaonkar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Cleaner Technology and Modelling Division, CSIR-National Environmental Engineering Research Institute, Nagpur, India
| | - Hiren Raval
- Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Lin W, Wang Q, Sun L, Wang D, Cabrera J, Li D, Hu L, Jiang G, Wang XM, Huang X. The critical role of feed spacer channel porosity in membrane biofouling: Insights and implications. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120395] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Laghmari S, May P, Ulbricht M. Polyzwitterionic hydrogel coating for reverse osmosis membranes by concentration polarization-enhanced in situ “click” reaction that is applicable in modules. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119274] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Kieferle I, Kulozik U. Importance of process conditions in the displacement of protein concentrates from spiral-wound membrane modules. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2020.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lin WC, Shao RP, Wang XM, Huang X. Impacts of non-uniform filament feed spacers characteristics on the hydraulic and anti-fouling performances in the spacer-filled membrane channels: Experiment and numerical simulation. WATER RESEARCH 2020; 185:116251. [PMID: 32771564 DOI: 10.1016/j.watres.2020.116251] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/05/2020] [Accepted: 07/28/2020] [Indexed: 05/26/2023]
Abstract
Feed spacer is universally used in spiral-wound nanofiltration (NF) and reverse osmosis (RO) membrane modules. It can separate membrane sheets, create flow channels, promote turbulence and enhance mass transfer. However, it also induces increased pressure drop across the flow channel, and generates dead zones for biofilm growth at specific locations. Optimization of feed spacer geometries is highly desirable for energy saving and biofouling control. In this study, four kinds of commercial feed spacers featured with non-uniform filaments were compared in terms of hydraulic and anti-fouling performances. Computational fluid dynamics (CFD) simulations were launched to give insights into the impacts of feed spacer characteristics on the flow field. Results show that the hydraulic performance was substantially affected by the number of filament layers (single or dual layer), the non-uniformity of filament diameter and the width of thinning zones. The design of single layer feed spacer of non-uniform filaments was not recommended due to high flow resistance and poor anti-fouling performance. The feed spacer structure of alternating filament diameter contributed to reducing dead zones and alleviating membrane fouling. The thinning zones located adjacent to the filament junctions achieved better anti-fouling performance, as it disturbed the dead zones and partially washed away the deposited foulants. This study demonstrates for the first time that the characteristics of non-uniform filament feed spacer had a crucial impact on the hydraulic and anti-fouling performances, and suggests that more emphasis should be laid on number of filament layers, variation of filament diameter and width and positioning of thinning zones for the optimization of feed spacer geometries in the future.
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Affiliation(s)
- Wei-Chen Lin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Rui-Peng Shao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Xiao-Mao Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research and Application Center for Membrane Technology, School of Environment, Tsinghua University, Beijing 100084, China.
| | - Xia Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research and Application Center for Membrane Technology, School of Environment, Tsinghua University, Beijing 100084, China.
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Luiz-Santos N, Prado-Ramírez R, Arriola-Guevara E, Camacho-Ruiz RM, Moreno-Vilet L. Performance Evaluation of Tight Ultrafiltration Membrane Systems at Pilot Scale for Agave Fructans Fractionation and Purification. MEMBRANES 2020; 10:membranes10100261. [PMID: 32992563 PMCID: PMC7601410 DOI: 10.3390/membranes10100261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/13/2022]
Abstract
Ceramic and polymeric membrane systems were compared at the pilot scale for separating agave fructans into different molecular weight fractions that help to diversify them into more specific industrial applications. The effect of the transmembrane pressure of ultrafiltration performance was evaluated through hydraulic permeability, permeate flux and rejection coefficients, using the same operating conditions such as temperature, feed concentration and the molecular weight cut-off (MWCO) of membranes. The fouling phenomenon and the global yield of the process were evaluated in concentration mode. A size distribution analysis of agave fructans is presented and grouped by molecular weight in different fractions. Great differences were found between both systems, since rejection coefficients of 68.6% and 100% for fructans with degrees of polymerization (DP) > 10, 36.3% and 99.3% for fructooligosaccharides (FOS) and 21.4% and 34.2% for mono-disaccharides were obtained for ceramic and polymeric membrane systems, respectively. Thus, ceramic membranes are better for use in the fractionation process since they reached a purity of 42.2% of FOS with a yield of 40.1% in the permeate and 78.23% for fructans with DP > 10 and a yield of 70% in the retentate. Polymeric membranes make for an efficient fructan purification process, eliminating only mono-disaccharides, and reaching a 97.7% purity (considering both fructan fractions) with a yield of 64.3% in the retentate.
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Affiliation(s)
- Noe Luiz-Santos
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. Camino arenero 1227. El Bajío, C.P. 45019 Zapopan, Jalisco, Mexico; (N.L.-S.); (R.-M.C.R.)
| | - Rogelio Prado-Ramírez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. Camino arenero 1227. El Bajío, C.P. 45019 Zapopan, Jalisco, Mexico; (N.L.-S.); (R.-M.C.R.)
- Correspondence: (R.P.-R.); (L.M.-V.)
| | - Enrique Arriola-Guevara
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara, Blvd. M. García Barragán 1421, C.P. 44430 Guadalajara, Jalisco, Mexico;
| | - Rosa-María Camacho-Ruiz
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. Camino arenero 1227. El Bajío, C.P. 45019 Zapopan, Jalisco, Mexico; (N.L.-S.); (R.-M.C.R.)
| | - Lorena Moreno-Vilet
- CONACYT- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C. Av. Normalistas 800, Colinas de la Normal, C.P. 44270 Guadalajara, Jalisco, Mexico
- Correspondence: (R.P.-R.); (L.M.-V.)
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Toh K, Liang Y, Lau W, Fletcher D. CFD study of the effect of perforated spacer on pressure loss and mass transfer in spacer-filled membrane channels. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115704] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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13
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Toh K, Liang Y, Lau W, Fimbres Weihs G. 3D CFD study on hydrodynamics and mass transfer phenomena for SWM feed spacer with different floating characteristics. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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14
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Gu J, Luo J, Li M, Huang C, Heng Y. Modeling of pressure drop in reverse osmosis feed channels using multilayer artificial neural networks. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.04.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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15
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Hydrodynamic modeling of the spiral-wound membrane module including the membrane curvature: reverse osmosis case study. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0372-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Ali SM, Qamar A, Kerdi S, Phuntsho S, Vrouwenvelder JS, Ghaffour N, Shon HK. Energy efficient 3D printed column type feed spacer for membrane filtration. WATER RESEARCH 2019; 164:114961. [PMID: 31421514 DOI: 10.1016/j.watres.2019.114961] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Modification of the feed spacer design significantly influences the energy consumption of membrane filtration processes. This study developed a novel column type feed spacer with the aim to reduce the specific energy consumption (SEC) of the membrane based water filtration system. The proposed spacer increases the clearance between the filament and the membrane (reducing the spacer filament diameter) while keeping the same flow channel thickness as compared to a standard non-woven symmetric spacer. Since the higher clearance reduces the flow unsteadiness, column type nodes were added in the spacer structure as additional vortex shading bodies. Fluid flow behaviour in the channel for this spacer was numerically simulated by 3D CFD studies and then compared with the standard spacer. The numerical results showed that the proposed spacer substantially reduced the pressure drop, shear stress at the constriction region and shortened the dead zone. Finally, these findings were confirmed experimentally by investigating the filtration performances using the 3D printed prototypes of these spacers in a lab-scale filtration module. It is observed that the column spacer reduced the pressure drop by three times and doubled the specific water flux. 2D OCT (Optical Coherence Tomography) scans of the membrane surface acquired after the filtration revealed much lower biomass accumulation using the proposed spacer. Consequently, the SEC for the column spacer was found about two folds lower than the standard spacer.
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Affiliation(s)
- Syed Muztuza Ali
- School of Civil and Environmental Engineering, University of Technology, Sydney, Post Box 129, Broadway, NSW 2007, Australia
| | - Adnan Qamar
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Sarah Kerdi
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Sherub Phuntsho
- School of Civil and Environmental Engineering, University of Technology, Sydney, Post Box 129, Broadway, NSW 2007, Australia
| | - Johannes S Vrouwenvelder
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Noreddine Ghaffour
- King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Ho Kyong Shon
- School of Civil and Environmental Engineering, University of Technology, Sydney, Post Box 129, Broadway, NSW 2007, Australia.
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Kleffner C, Braun G, Antonyuk S. Influence of Membrane Intrusion on Permeate‐Sided Pressure Drop During High‐Pressure Reverse Osmosis. CHEM-ING-TECH 2019. [DOI: 10.1002/cite.201800104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Christine Kleffner
- Technische Hochschule KölnInstitut für Anlagen- und Verfahrenstechnik Betzdorfer Straße 2 50679 Köln Germany
| | - Gerd Braun
- Technische Hochschule KölnInstitut für Anlagen- und Verfahrenstechnik Betzdorfer Straße 2 50679 Köln Germany
| | - Sergiy Antonyuk
- Technische Universität KaiserslauternMechanische Verfahrenstechnik Gottlieb-Daimler-Straße 44 67663 Kaiserslautern Germany
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Mehdizadeh S, Yasukawa M, Abo T, Kakihana Y, Higa M. Effect of spacer geometry on membrane and solution compartment resistances in reverse electrodialysis. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2018.09.051] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Impact of Modified Spacer on Flow Pattern in Narrow Spacer-Filled Channels for Spiral-Wound Membrane Modules. ENVIRONMENTS 2018. [DOI: 10.3390/environments5110116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A modified spacer, which was constructed with arched filaments and zigzag filaments, was designed to improve vortex shedding and generate a directional change in flow patterns of membrane modules, especially in the vicinity of the feed spacer filament, which is most affected by fouling. A unit cell was investigated by using a three-dimensional computational fluid dynamics (CFD) model for hydrodynamic simulation. The results of CFD simulations were carried out for the fluid flow in order to understand the effect of the modified spacer on vortices to the performance of arched filaments at different distances. From 2D velocity vectors and shear stress contour mixing, the flow pattern and dead zone flushing were depicted. The ratio of low shear stress area to the total area increased with the inlet velocity closed to 20%. The energy consumption with respect to flow direction for the arched filament was 80% lower than that in the zigzag filament. Compared with previous commercial spacers’ simulation, the friction factor was lower when the main flow was normal to the arched filament and the modified friction factor was close to the commercial spacers. The homogenization was realized through the flow pattern created by the modified spacer.
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CT scanning of membrane feed spacers – Impact of spacer model accuracy on hydrodynamic and solute transport modeling in membrane feed channels. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.07.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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