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dc.contributor.authorHolt, Torleif
dc.contributor.authorSivertsen, Edvard
dc.contributor.authorThelin, Willy
dc.contributor.authorBrekke, Geir
dc.date.accessioned2018-12-04T16:52:00Z
dc.date.available2018-12-04T16:52:00Z
dc.date.created2018-09-20T15:18:07Z
dc.date.issued2018
dc.identifier.isbn978-953-51-3921-8
dc.identifier.urihttp://hdl.handle.net/11250/2576045
dc.description.abstractPressure retarded osmosis (PRO) can be used to exploit the mixing energy e.g. between river water and sea water. A PRO membrane must be highly permeable for water, whereas salt ions should be retained. Furthermore, the structure parameter of the membrane support and backing structure must be low. This paper summarises an assessment of the pressure dependency of the structure parameter for flat sheet membranes, and a transport model for PRO and procedures for determination of the pressure dependency of the structure parameter are presented. The results from laboratory experiments show that that the structure parameter increases significantly with increasing trans-membrane pressure. The increase in the structure parameter was observed to depend on both characteristics of the membrane and the fresh water spacer. Using a finely textured tricot spacer reduced the pressure dependency on the structure parameter, compared to a coarser spacer. Applying a non-woven backing material between the membrane and the fresh water spacer also reduced the impact of pressure. The results show that membranes suitable for river water/sea water PRO must have a sufficiently low structure parameter and additionally resist severe deformation at relevant operating pressures.nb_NO
dc.language.isoengnb_NO
dc.publisherINTECH
dc.relation.ispartofOsmotically Driven Membrane Processes. Approach, Development and Current Status
dc.relation.ispartofOsmotically Driven Membrane Processes. Approach, Development and Current Status
dc.rightsCC BY 3.0*
dc.rights.urihttp://creativecommons.org/licenses/3.0/deed.no*
dc.subjectOsmotic powernb_NO
dc.subjectPressure retarded osmosisnb_NO
dc.subjectPressure retarded osmosisnb_NO
dc.subjectStructure parameternb_NO
dc.subjectPressure dependencenb_NO
dc.titlePressure Dependency of the Membrane Structure Parameter and Implications in Pressure Retarded Osmosis (PRO)nb_NO
dc.typeChapternb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holder© 2018 The authorsnb_NO
dc.subject.nsiVDP::Teknologi: 500nb_NO
dc.source.pagenumber111-128nb_NO
dc.identifier.doi10.5772/intechopen.72444
dc.identifier.cristin1611645
cristin.unitcode7571,54,0,0
cristin.unitcode7401,30,30,0
cristin.unitnameLete- og reservoarteknologi
cristin.unitnameInfrastruktur
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Except where otherwise noted, this item's license is described as CC BY 3.0