A theoretical study on the filtration efficiency and dust holding performance of pleated air filters
Filter media composed of electrostatically charged nonwovens is the key device in an air purifier. Pleated filters are constructed from a cardboard frame with lattice faces containing a filter media reinforce by an expanded support grid, which have more surface area for trapping contaminants and cap...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023051526 |
| _version_ | 1797771515941355520 |
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| author | Bo Shi Xinyi Yu Yuan Pu Dan Wang |
| author_facet | Bo Shi Xinyi Yu Yuan Pu Dan Wang |
| author_sort | Bo Shi |
| collection | DOAJ |
| description | Filter media composed of electrostatically charged nonwovens is the key device in an air purifier. Pleated filters are constructed from a cardboard frame with lattice faces containing a filter media reinforce by an expanded support grid, which have more surface area for trapping contaminants and capture airborne contaminants more effectively than non-pleated air filters. The aim of this work is to investigate the dominant factors on the filtration efficiency and dust holding performance of pleated filter by using a modified numerical model. It is found that geometric parameters of pleated filter play important roles to efficiency of the air purifier based on particle loading and filtration efficiency. The stable structural parameters include bending angle of pleated filter material in the range of 0∼60° and the ratio of bending portion less than 0.5. Lower filling degree and shorter length of pleated filter unit exhibit similar stability of efficiency, indicating that the change of structural parameters has little effects on the filtration performance. The knowledge obtained in this work provides concrete reference for the design of high-performance air-cleaner element. |
| first_indexed | 2024-03-12T21:37:43Z |
| format | Article |
| id | doaj.art-ab0adfa9b8364c3793cb93e35e38628d |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-12T21:37:43Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-ab0adfa9b8364c3793cb93e35e38628d2023-07-27T05:58:01ZengElsevierHeliyon2405-84402023-07-0197e17944A theoretical study on the filtration efficiency and dust holding performance of pleated air filtersBo Shi0Xinyi Yu1Yuan Pu2Dan Wang3State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, ChinaResearch Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, ChinaState Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China; Corresponding author. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.Filter media composed of electrostatically charged nonwovens is the key device in an air purifier. Pleated filters are constructed from a cardboard frame with lattice faces containing a filter media reinforce by an expanded support grid, which have more surface area for trapping contaminants and capture airborne contaminants more effectively than non-pleated air filters. The aim of this work is to investigate the dominant factors on the filtration efficiency and dust holding performance of pleated filter by using a modified numerical model. It is found that geometric parameters of pleated filter play important roles to efficiency of the air purifier based on particle loading and filtration efficiency. The stable structural parameters include bending angle of pleated filter material in the range of 0∼60° and the ratio of bending portion less than 0.5. Lower filling degree and shorter length of pleated filter unit exhibit similar stability of efficiency, indicating that the change of structural parameters has little effects on the filtration performance. The knowledge obtained in this work provides concrete reference for the design of high-performance air-cleaner element.http://www.sciencedirect.com/science/article/pii/S2405844023051526Pleated filterAir purificationNumerical modelParticle filtrationDust holding |
| spellingShingle | Bo Shi Xinyi Yu Yuan Pu Dan Wang A theoretical study on the filtration efficiency and dust holding performance of pleated air filters Heliyon Pleated filter Air purification Numerical model Particle filtration Dust holding |
| title | A theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| title_full | A theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| title_fullStr | A theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| title_full_unstemmed | A theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| title_short | A theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| title_sort | theoretical study on the filtration efficiency and dust holding performance of pleated air filters |
| topic | Pleated filter Air purification Numerical model Particle filtration Dust holding |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023051526 |
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