Comprehensive insights into performance of water gap and air gap membrane distillation modules using hollow fiber membranes
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Comprehensive insights into performance of water gap and air gap membrane distillation modules using hollow fiber membranes.pdf
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2023-12-22
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ArticleAuthors
Im, Baek-GyuFrancis, Lijo
Santosh, Ravichandran
Kim, Woo-Seung
Ghaffour, NorEddine
Kim, Young-Deuk
KAUST Department
Water Desalination and Reuse Research Center (WDRC)Environmental Science and Engineering Program
Biological and Environmental Science and Engineering (BESE) Division
Date
2021-12-22Online Publication Date
2021-12-22Print Publication Date
2022-03Submitted Date
2021-07-08Permanent link to this record
http://hdl.handle.net/10754/674140Metadata
Show full item recordAbstract
A commercially available microporous polypropylene hollow fiber membranes were employed for air gap and water gap membrane distillation (i.e., AGMD and WGMD, respectively) processes. In both configurations, the outer surface of commercially available dense polypropylene hollow fibers was used as the condensing surface of the permeate. The performance levels of the AGMD and WGMD processes utilizing microporous polyvinylidene fluoride membranes fabricated in-house were compared with those using polypropylene membranes. Under the given specific operating conditions, the maximum mean permeation flux values in AGMD and WGMD using polypropylene hollow fiber membranes were approximately 24 and 27 kg/m2h, respectively. In addition, theoretical studies on AGMD and WGMD using the designed hollow fiber module configuration were performed. The predicted results were found to well agree with the experimental results, thus verifying their validity. Moreover, parametric studies were conducted to identify the optimum evaporation-to-condensation surface area ratio (i.e., optimum numbers of hollow fiber membranes and hollow fiber condensers) in terms of specific energy consumption.Citation
Im, B.-G., Francis, L., Santosh, R., Kim, W.-S., Ghaffour, N., & Kim, Y.-D. (2022). Comprehensive insights into performance of water gap and air gap membrane distillation modules using hollow fiber membranes. Desalination, 525, 115497. doi:10.1016/j.desal.2021.115497Sponsors
This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2021R1F1A105013511) and by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea (No. 20194010201740).Publisher
Elsevier BVJournal
DesalinationAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S0011916421005683Scopus Count
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