Sangam: A Confluence of Knowledge Streams

System scale analytical modeling of forward and assisted forward osmosis mass exchangers with a case study on fertigation

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dc.contributor Massachusetts Institute of Technology. Department of Mechanical Engineering
dc.contributor Rohsenow Kendall Heat Transfer Laboratory (Massachusetts Institute of Technology)
dc.contributor Banchik, Leonardo David
dc.contributor Weiner, Adam Michael
dc.contributor Lienhard, John H.
dc.creator Banchik, Leonardo David
dc.creator Weiner, Adam Michael
dc.creator Al-Anzi, Bader
dc.creator Lienhard, John H
dc.date 2016-07-18T19:36:45Z
dc.date 2016-07-18T19:36:45Z
dc.date 2016-03
dc.date 2016-02
dc.date.accessioned 2023-03-01T08:02:43Z
dc.date.available 2023-03-01T08:02:43Z
dc.identifier 03767388
dc.identifier http://hdl.handle.net/1721.1/103680
dc.identifier Banchik, Leonardo D., Adam M. Weiner, Bader Al-Anzi, and John H. Lienhard V. “System Scale Analytical Modeling of Forward and Assisted Forward Osmosis Mass Exchangers with a Case Study on Fertigation.” Journal of Membrane Science 510 (July 2016): 533–545.
dc.identifier https://orcid.org/0000-0002-2901-0638
dc.identifier https://orcid.org/0000-0003-0402-8185
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/275950
dc.description Forward osmosis (FO) and assisted forward osmosis (AFO) mass exchangers are currently receiving considerable attention for their potential use in a variety of dilution and concentration applications in resource extraction, fertigation, and pharmaceutical process streams. In this work we develop analytical expressions for parallel and counterflow FO and AFO exchangers which can be used to quickly and accurately estimate the membrane area required for these applications in addition to determining the performance of existing exchangers. Unlike previous models, our analytical model accounts for internal and external concentration polarization in system scale exchangers with overall average errors of less than 10% against a numerical model and less than 35% validated against data from the literature. The performance of FO and AFO exchangers is compared, and an osmotic fertilizer dilution (fertigation) case study is investigated in which the trade-off between energy and membrane area requirements is quantified. We find that AFO exchangers yield a higher recovery relative to FO exchangers for a given energy input especially when the inlet draw-to-feed osmotic pressure ratio is low. Diminishing returns in recovery ratio are attained for increasing membrane area and increasing draw-to-feed mass flow rate ratio. We also find that for the same brackish feed water and recovery ratio, reductions in area of up to 40% relative to FO can be realized with 2 kWh/m3 of energy input into an AFO system in the fertigation case study.
dc.description Kuwait Foundation for the Advancement of Sciences (Project no. P31475EC01)
dc.description National Science Foundation (U.S.) (Graduate Research Fellowship Program, Grant no. 1122374)
dc.format application/pdf
dc.language en_US
dc.publisher Elsevier
dc.relation http://dx.doi.org/10.1016/j.memsci.2016.02.063
dc.relation Journal of Membrane Science
dc.rights Creative Commons Attribution-NonCommercial-NoDerivs License
dc.rights http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.source Prof. Lienhard via Angie Locknar
dc.title System scale analytical modeling of forward and assisted forward osmosis mass exchangers with a case study on fertigation
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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