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Li S, Lin Y, Han M, Liu H, Shao J, Tan X, Luo Y, Huang R. Effects of various wet environments on the characteristics of the dust cake deposited on the surface of filter media. Sci Rep 2023; 13:17120. [PMID: 37816794 PMCID: PMC10564904 DOI: 10.1038/s41598-023-44429-4] [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: 06/05/2023] [Accepted: 10/08/2023] [Indexed: 10/12/2023] Open
Abstract
The effect of wet environments on the dust cake of filter media was studied. The collapse angles of dust particles and the collapse angles between dust particles and filter media increase with increasing dust moisture content, relative humidity, and spray rate. The smallest growth rate of collapse was observed under dust moisture content, while the largest growth rate occurred under the spray rate condition. The collapse angles between dust particles and filter media of coated filter media were smaller compared to those of mechanical filter media under different wet environments. The dust cake drag coefficients of both filter media initially increase and then decrease with an increase in the dust moisture content, decrease with the acceleration of the relative humidity, and show a pattern of first decreasing and then increasing as the spray rate increases. The dust loading capacity of both filter media follows an opposite trend to that of the dust cake drag coefficients.
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Affiliation(s)
- Shihang Li
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China.
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China.
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Yihan Lin
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Muze Han
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, 221116, China
| | - Hao Liu
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China
| | - Jiang Shao
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China
| | - Xiaoyu Tan
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China
| | - Yuchen Luo
- Jiangsu Key Laboratory of Coal-Based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China
| | - Rongting Huang
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China
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Kim S, Kim BS, Bai J, Chang Y. Antibacterial κ-carrageenan/konjac glucomannan-based edible hydrogel film containing Salmonella phage PBSE191 and its application in chicken meat. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Schwarz AD, Meyer J, Dittler A. Penetration of Water-Soluble Material through Gas-Cleaning Filters. MEMBRANES 2022; 12:776. [PMID: 36005691 PMCID: PMC9413035 DOI: 10.3390/membranes12080776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/18/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
To predict the behavior of gas-cleaning filters during real-world operation, it is essential to understand their response to ambient conditions. The temporary presence of water droplets in gas-cleaning filtration systems due to fog, spray rain, or condensation, as examples of irregular events, has an impact on the filters' operating performance, especially when soluble particles are present. In this work, surface filters were loaded with mixtures of water-soluble salt particles and insoluble glass spheres. These were, subsequently, exposed to water mist and dried by a particle-free gas stream. A novel approach to analyze the drainage of solution on filters with soluble filter cakes is presented, which allows the detection of solubles on the clean gas side of the filter. As a result, this work, for the first time, presents a sighting of the penetration of soluble filter cake material through gas-cleaning filters. Furthermore, filter performance, in terms of differential pressure and fractional separation efficiency, was determined and a characteristic differential pressure evolution for hydrophilic filters during exposure to water mist was also identified. The fractional separation efficiency of gas-cleaning filters decreases due to exposure to water mist. The findings are supported by scanning electron microscopy (SEM) images, energy-dispersive X-ray (EDX), and X-ray microtomography (µ-CT analysis) images.
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Schwarz AD, Dutzi J, Weber P, Sattler C, Schulz K, Caesar T, Meyer J, Dittler A. Humidity Considerations in Filter Testing Based on Analysis of Filters from Gas Turbine Applications. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Almuth D. Schwarz
- Karlsruhe Institute of Technology Institute of Mechanical Process Engineering and Mechanics Strasse am Forum 8 76131 Karlsruhe Germany
| | - Julian Dutzi
- Karlsruhe Institute of Technology Institute of Mechanical Process Engineering and Mechanics Strasse am Forum 8 76131 Karlsruhe Germany
| | - Patrick Weber
- Freudenberg Filtration Technologies SE & Co. KG Hoehnerweg 2–4 69469 Weinheim Germany
| | - Carsten Sattler
- Freudenberg Filtration Technologies SE & Co. KG Hoehnerweg 2–4 69469 Weinheim Germany
| | - Karsten Schulz
- Freudenberg Filtration Technologies SE & Co. KG Hoehnerweg 2–4 69469 Weinheim Germany
| | - Thomas Caesar
- Freudenberg Filtration Technologies SE & Co. KG Hoehnerweg 2–4 69469 Weinheim Germany
| | - Jörg Meyer
- Karlsruhe Institute of Technology Institute of Mechanical Process Engineering and Mechanics Strasse am Forum 8 76131 Karlsruhe Germany
| | - Achim Dittler
- Karlsruhe Institute of Technology Institute of Mechanical Process Engineering and Mechanics Strasse am Forum 8 76131 Karlsruhe Germany
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Pei C, Ou Q, Yu T, Pui DY. Loading characteristics of nanofiber coated air intake filter media by potassium chloride, ammonium sulfate, and ammonium nitrate fine particles and the comparison with conventional cellulose filter media. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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