Predicting the performance of spiral-wound membranes in pressure-retarded osmosis processes

Saly M. Matta, Muaz A. Selam, Husnain Manzoor, Samer Adham, Ho Kyong Shon, Marcelo Castier and Ahmed Abdel-Wahab

Renewable Energy, 2022, vol. 189, issue C, 66-77

Abstract: A process simulator has been developed to model and predict the performance of spiral-wound membrane modules in pressure retarded osmosis processes. This has involved automation of generalized protocols for the numerical integration of the solvent and solute flux equations (in conjunction with a suitable electrolyte equation of state) along the surface area of a spiral-wound membrane leaf. Performance equations are solved for discrete area elements and the spiral-wound character of the module as a whole is realized through the programmed sequence in which discrete elements are evaluated. This arrangement allows for mirroring the parabolic flow pattern of the feed stream in the spiral-wound membrane leaf. The total permeation (and, by extension, power density) is thus calculated in a manner that accounts for the driving force profile consistent with flow patterns specific to spiral-wound membranes. This effective treatment of each discrete element as a flat-sheet membrane enables the transferability of membrane parameters characterized in standard, coupon-scale experiments to the simulation of spiral-wound modules. This transferability is illustrated through comparisons of model predictions with published pilot-scale PRO data.

Keywords: Pressure-retarded osmosis; Spiral-wound; Power density; PRO membranes; Q-electrolattice (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:189:y:2022:i:c:p:66-77

DOI: 10.1016/j.renene.2022.02.125

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