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Kalazić A, Badrov T, Schwarz I, Brnada S. Incorporating Variable Porosity into the Determination of Effective Permeability in Interchanging Double Cloth Woven Fabrics Using Darcy's Law. Polymers (Basel) 2023; 15:3048. [PMID: 37514437 PMCID: PMC10383400 DOI: 10.3390/polym15143048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
Woven fabrics are widely used for thermal protection due to their porosity, which provides thermal insulation and breathability. This research focuses on investigating the influential parameters in the thermal protective properties of layer interchanging double cloth, including the woven structure and varying yarn fineness. The properties affecting the protective properties and comfort of multilayered woven fabrics include the fabric thickness, fabric porosity, and air permeability. Darcy's law is applicable for determining the effective air permeability of woven fabrics. By understanding and controlling fabric porosity, it becomes possible to develop thermal protective clothing that combines improved comfort, cost-efficiency, and effectiveness. This study represents a novel approach for the clarification of airflow permeability behavior in complex structures of elastic multilayer woven fabrics using Darcy's law. This innovative approach expands the understanding of permeability in fabrics beyond single-layer fabrics with vertical pores or 3D fabrics used in resin injection processes.
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Affiliation(s)
- Ana Kalazić
- Department of Textile Design and Management, Faculty of Textile Technology Zagreb, University of Zagreb, Prilaz baruna Filipovića 28a, 10000 Zagreb, Croatia
| | - Tea Badrov
- Department of Textile Design and Management, Faculty of Textile Technology Zagreb, University of Zagreb, Prilaz baruna Filipovića 28a, 10000 Zagreb, Croatia
| | - Ivana Schwarz
- Department of Textile Design and Management, Faculty of Textile Technology Zagreb, University of Zagreb, Prilaz baruna Filipovića 28a, 10000 Zagreb, Croatia
| | - Snježana Brnada
- Department of Textile Design and Management, Faculty of Textile Technology Zagreb, University of Zagreb, Prilaz baruna Filipovića 28a, 10000 Zagreb, Croatia
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Kawashima K, Shirzadi M, Fukasawa T, Fukui K, Tsuru T, Ishigami T. Numerical modeling for particulate flow through realistic microporous structure of microfiltration membrane: Direct numerical simulation coordinated with focused ion beam scanning electron microscopy. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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3
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Furumoto K, Fukasawa T, Ishigami T, Irwan Fatkhur Rozy M, Kuo HP, Huang AN, Fukui K. Influence of pulse-jet cleaning pressure on performance of compact dust collector with pleated filter operated in clean-on-time mode. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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He W, Low ZX, Feng S, Zhou Q, Zhang F, Zhong Z, Xing W. Prediction and Optimization of Interlayer-Interface Resistance for Expanded Polytetrafluoroethylene-Laminated Polyphenylene Sulfide Composite Membranes. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wentai He
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Ze-Xian Low
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Qun Zhou
- Jiangsu Jiulang High-Tech Co., Ltd., Nanjing 210009, China
| | - Feng Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu Jiulang High-Tech Co., Ltd., Nanjing 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
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Shirzadi M, Ueda M, Hada K, Fukasawa T, Fukui K, Mino Y, Tsuru T, Ishigami T. High-Resolution Numerical Simulation of Microfiltration of Oil-in-Water Emulsion Permeating through a Realistic Membrane Microporous Structure Generated by Focused Ion Beam Scanning Electron Microscopy Images. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2094-2108. [PMID: 35104148 DOI: 10.1021/acs.langmuir.1c03183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to the limitations of visualization techniques in experimental studies and low-resolution numerical models based on computational fluid dynamics (CFD), the detailed behavior of oil droplets during microfiltration is not well understood. Hence, a high-resolution CFD model based on an in-house direct numerical simulation (DNS) code was constructed in this study to analyze the detailed dynamics of an oil-in-water (O/W) emulsion using a microfiltration membrane. The realistic microporous structure of commercial ceramic microfiltration membranes (mullite and α-alumina membranes) was obtained using an image processing technique based on focused ion beam scanning electron microscopy (FIB-SEM). Numerical simulations of microfiltration of O/W emulsions on the membrane microstructure obtained by FIB-SEM were performed, and the effects of different parameters, including contact angle, transmembrane pressure, and membrane microporous structure, on filtration performance were studied. Droplet deformation had a strong impact on filtration behavior because coalesced droplets with diameters larger than the pore diameter permeated the membrane pores. The permeability, oil hold-up fraction inside the pores, and rejection were considerably influenced by the contact angle, while the transmembrane pressure had a little impact on the permeability and oil hold-up fraction. The membrane structure, especially the pore size distribution, also had a significant effect on the microfiltration behavior and performance.
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Affiliation(s)
- Mohammadreza Shirzadi
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Masaki Ueda
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Kodai Hada
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Tomonori Fukasawa
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Kunihiro Fukui
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Yasushi Mino
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Toshinori Tsuru
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Toru Ishigami
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
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Rozy MIF, Maemoto Y, Ueda M, Fukasawa T, Ishigami T, Fukui K, Sakai M, Mino Y, Gotoh K. Direct numerical simulation of permeation of particles through a realistic fibrous filter obtained from X-ray computed tomography images utilizing signed distance function. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.02.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ueda M, Fukasawa T, Ishigami T, Fukui K. Effect of Surface Wettability on Droplet Coalescence and Pressure Drop in a Fibrous Filter: Direct Numerical Simulation Coordinated with X-ray Computed Tomography Images. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06157] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masaki Ueda
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan
| | - Tomonori Fukasawa
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan
| | - Toru Ishigami
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan
| | - Kunihiro Fukui
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima 739-8527, Hiroshima, Japan
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High fidelity simulation of ultrafine PM filtration by multiscale fibrous media characterized by a combination of X-ray CT and FIB-SEM. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118925] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xu Y, Wang L, Tian G, Li Y, Wang P, Pan Z, Jin X. Manufacturing of polytetrafluoroethylene fine fibers by waterjet impacting. RSC Adv 2021; 11:36596-36606. [PMID: 35494358 PMCID: PMC9043470 DOI: 10.1039/d1ra05074e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/17/2021] [Indexed: 11/24/2022] Open
Abstract
Due to unique anti-erosion properties and excellent thermal stability, polytetrafluoroethylene (PTFE) fibers are regarded as an ideal material to manufacture filters for industrial dust purification. Based on weak interactions between PTFE molecular chains, we applied a high-pressure waterjet to cause normal PTFE split-film fibers to split fibers again. Four kinds of PTFE split-film fibers and sintered films with different molecular weights were produced. Afterward, waterjets were introduced to impact PTFE sintered films and split-film fibers under different pressures and jets, and we analyzed variations in the sintered film morphology and fiber diameter. When the molecular weight was increased, the visible light transmittance of four different PTFE sintered films at the wavelength of 382 nm decreased from 85.7% to 77.6% and then increased to 95.1%, which was consistent with light–dark characteristics in light micrographs of sintered films. The four PTFE sintered films split into fibers under the waterjet impact force. In particular, MW49 PTFE sintered film was split into microscale fibers using waterjets at 110 bar and 5 jets. Finally, waterjets were applied to impact normal PTFE split-film fibers to force the original fibers to split into fine fibers. Different PTFE split-film fibers exhibited a significant decrease in the average diameter. In particular, in the case of MW49 PTFE split-film fibers, the average diameter of fibers impacted by 5 jets at 110 bar decreased from 27.4 to 15.7 μm, confirming the suitability of high-pressure waterjets for the splitting of PTFE split-film fibers into microscale fibers. The waterjet impacting technology was introduced to split PTFE split-film fibers again to manufacture fine fibers for applications in the air purification field.![]()
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Affiliation(s)
- Yukang Xu
- College of Textile and Clothing Engineering, Soochow University, Jiangsu, 215021, China
| | - Lei Wang
- Department of Anesthesiology, The Affiliated Huai'an Hospital of Xuzhou Medical University, Jiangsu, 223003, China
| | - Guangliang Tian
- Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China
| | - Yuanyuan Li
- College of Textile and Clothing Engineering, Soochow University, Jiangsu, 215021, China
| | - Ping Wang
- College of Textile and Clothing Engineering, Soochow University, Jiangsu, 215021, China
| | - Zhijuan Pan
- College of Textile and Clothing Engineering, Soochow University, Jiangsu, 215021, China
| | - Xiangyu Jin
- Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University, Shanghai 201620, China
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Ueda M, Rozy MIF, Fukasawa T, Ishigami T, Fukui K. Phase-Field Simulation of the Coalescence of Droplets Permeating through a Fibrous Filter Obtained from X-ray Computed Tomography Images: Effect of the Filter Microstructure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4711-4720. [PMID: 32275435 DOI: 10.1021/acs.langmuir.0c00640] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We numerically study the droplet coalescence of an oil-in-water (O/W) emulsion permeating through a fibrous filter. Our numerical simulation method is based on the phase-field model for capturing a free interface, the immersed boundary method used to calculate fluid-solid interactions, and the wetting model that assigns an order parameter to the solid surface according to the wettability. To represent realistic flow inside the filter during simulation, the voxel data obtained from X-ray computed tomography (CT) images of the filter microstructure are used in the simulation. The effects of the filter microstructure, such as fiber arrangement and orientation of the droplet coalescence, are investigated by using several filter domains. Our simulations demonstrate that the arrangement of closely attached fibers placed at the permeate-side surface enhances droplet coalescence. In addition, the parallel orientation of the fiber to the main flow direction suppresses droplet enlargement due to the coalescence but reduces the number of droplet passages without coalescence in the filter.
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Affiliation(s)
- Masaki Ueda
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Mohammad Irwan Fatkhur Rozy
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Tomonori Fukasawa
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Toru Ishigami
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Kunihiro Fukui
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
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