Permeability of electrospun fiber mats under pressure driven flow
The hydraulic permeabilities of electrospun fiber mats are found to be functions of their compressibility. Hydraulic permeabilities of electrospun mats of bis-phenol A polysulfone (PSU) comprising fibers of different mean diameters, annealed at temperatures at and above the glass transition of the p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Elsevier
2016
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| Online Access: | http://hdl.handle.net/1721.1/101388 https://orcid.org/0000-0001-8137-1732 |
| _version_ | 1811071081023275008 |
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| author | Choong, Looh Tchuin (Simon) Khan, Zafarullah Rutledge, Gregory C. |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Choong, Looh Tchuin (Simon) Khan, Zafarullah Rutledge, Gregory C. |
| author_sort | Choong, Looh Tchuin (Simon) |
| collection | MIT |
| description | The hydraulic permeabilities of electrospun fiber mats are found to be functions of their compressibility. Hydraulic permeabilities of electrospun mats of bis-phenol A polysulfone (PSU) comprising fibers of different mean diameters, annealed at temperatures at and above the glass transition of the polymer, were measured for feed water pressures ranging from 5 kPa to 140 kPa. The electrospun mats experience a decrease of more than 60% in permeability between 5 kPa and 140 kPa, due to the loss of porosity, attributed to flow-induced compression. This behavior is explained using a simple model based on Darcy's law applied to a compressible, porous medium. Happel's equation is used to model the permeability of the fiber mats, and Toll's equation is used to model their compressibility. The permeation model accurately estimates the changes in solidity, and hence the permeability of the electrospun mats, over a range of pressure differentials. |
| first_indexed | 2024-09-23T08:45:46Z |
| format | Article |
| id | mit-1721.1/101388 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:45:46Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1013882022-09-30T11:05:55Z Permeability of electrospun fiber mats under pressure driven flow Permeability of electrospun fiber mats under hydraulic flow Choong, Looh Tchuin (Simon) Khan, Zafarullah Rutledge, Gregory C. Massachusetts Institute of Technology. Department of Chemical Engineering Rutledge, Gregory C. Choong, Looh Tchuin (Simon) Rutledge, Gregory C. The hydraulic permeabilities of electrospun fiber mats are found to be functions of their compressibility. Hydraulic permeabilities of electrospun mats of bis-phenol A polysulfone (PSU) comprising fibers of different mean diameters, annealed at temperatures at and above the glass transition of the polymer, were measured for feed water pressures ranging from 5 kPa to 140 kPa. The electrospun mats experience a decrease of more than 60% in permeability between 5 kPa and 140 kPa, due to the loss of porosity, attributed to flow-induced compression. This behavior is explained using a simple model based on Darcy's law applied to a compressible, porous medium. Happel's equation is used to model the permeability of the fiber mats, and Toll's equation is used to model their compressibility. The permeation model accurately estimates the changes in solidity, and hence the permeability of the electrospun mats, over a range of pressure differentials. Center for Clean Water and Clean Energy at MIT and KFUPM (Project R5-CW-08) 2016-03-01T20:51:03Z 2016-03-01T20:51:03Z 2013-10 2013-09 Article http://purl.org/eprint/type/JournalArticle 03767388 http://hdl.handle.net/1721.1/101388 Choong, Looh Tchuin (Simon), Zafarullah Khan, and Gregory C. Rutledge. “Permeability of Electrospun Fiber Mats Under Hydraulic Flow.” Journal of Membrane Science 451 (February 2014): 111–116. https://orcid.org/0000-0001-8137-1732 en_US http://dx.doi.org/10.1016/j.memsci.2013.09.051 Journal of Membrane Science Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier Prof. Rutledge via Erja Kajosalo |
| spellingShingle | Choong, Looh Tchuin (Simon) Khan, Zafarullah Rutledge, Gregory C. Permeability of electrospun fiber mats under pressure driven flow |
| title | Permeability of electrospun fiber mats under pressure driven flow |
| title_full | Permeability of electrospun fiber mats under pressure driven flow |
| title_fullStr | Permeability of electrospun fiber mats under pressure driven flow |
| title_full_unstemmed | Permeability of electrospun fiber mats under pressure driven flow |
| title_short | Permeability of electrospun fiber mats under pressure driven flow |
| title_sort | permeability of electrospun fiber mats under pressure driven flow |
| url | http://hdl.handle.net/1721.1/101388 https://orcid.org/0000-0001-8137-1732 |
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