Multistage pressure-retarded osmosis configurations: A unifying framework and thermodynamic analysis

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dc.contributor.author Chung, Hyung Won
dc.contributor.author Swaminathan, Jaichander
dc.contributor.author Lienhard, John H.
dc.date.accessioned 2020-03-12T08:51:47Z
dc.date.available 2020-03-12T08:51:47Z
dc.date.issued 2020-02
dc.identifier.citation Chung, Hyung Won; Swaminathan, Jaichander and Lienhard, John H., "Multistage pressure-retarded osmosis configurations: A unifying framework and thermodynamic analysis", Desalination, DOI: 10.1016/j.desal.2019.114230, vol. 476, Feb. 2020. en_US
dc.identifier.issn 0011-9164
dc.identifier.uri https://doi.org/10.1016/j.desal.2019.114230
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/5241
dc.description.abstract Pressure-retarded osmosis has enjoyed increasing research interest over the last decade. Recent studies focusing on single-stage PRO designs have raised doubts regarding the long-term economic viability of the technology. While most of the analyses are based on single-stage operation, comprehensive analysis of multistage PRO which shows promise for better energetic performance is absent. Previous studies on multistage PRO differ in their design philosophies and performance metrics, leading to an incomplete assessment regarding the potential benefits of multistaging. In this paper, we develop a unifying framework to classify several existing multistage configurations. In addition, we analyze the multistage PRO system from a thermodynamic perspective. Among the two major multistage design strategies, namely interstage pressure control and independent feed inputs to each stage, we found the latter to be more effective towards increasing net power density. In comparison to a single-stage device, a 10-stage system achieves around 9% higher net power density while using the same membrane area.
dc.description.statementofresponsibility by Hyung Won Chung, Jaichander Swaminathan and John H.LienhardV
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.subject Pressure-retarded osmosis en_US
dc.subject Salinity-gradient power en_US
dc.subject Multistage en_US
dc.subject Thermodynamic analysis en_US
dc.subject Feed inputs en_US
dc.title Multistage pressure-retarded osmosis configurations: A unifying framework and thermodynamic analysis en_US
dc.type Article en_US
dc.relation.journal Desalination


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