Characterising the Heat and Mass Transfer Coefficients for a Crossflow Interaction of Air and Water

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aut.relation.endpage104
aut.relation.journalInternational Journal of Heat and Mass Transferen_NZ
aut.relation.startpage94
aut.relation.volume111en_NZ
aut.researcherAnderson, Timothy
dc.contributor.authorEnayatollahi, Ren_NZ
dc.contributor.authorNates, RJen_NZ
dc.contributor.authorAnderson, Ten_NZ
dc.date.accessioned2017-08-04T04:04:16Z
dc.date.available2017-08-04T04:04:16Z
dc.date.copyright2017-08en_NZ
dc.date.issued2017-08en_NZ
dc.description.abstractAn experimental study was performed in order to characterise the heat and mass transfer processes, where an air stream passes through a sheet of falling water in a crossflow configuration. To achieve this, the hydrodynamics of a vertical liquid sheet in a ducted gaseous crossflow were studied. Four distinct flow regimes were identified (a stable sheet, a broken sheet, a flapping sheet and a lifted sheet) and mapped using Reynolds and Weber numbers. Subsequently, the Buckingham π theorem and a least squares analyses were employed leading to the proposal of two new dimensionless numbers referred to as the Prandtl Number of Evaporation and the Schmidt Number of Evaporation. These describe the heat and mass transfer in low temperature evaporation processes with crossflow interaction. Using these dimensionless numbers, empirical correlations for Sherwood and Nusselt numbers for the identified flow regimes were experimentally determined. These correlations were in a good agreement with their corresponding experimental values. It was found that flapping sheets have the strongest heat and mass transfer intensities whereas the weakest intensities were seen for the “stable” sheets.en_NZ
dc.identifier.citationInternational Journal of Heat and Mass Transfer, 111, 94-104.
dc.identifier.doi10.1016/j.ijheatmasstransfer.2017.03.098en_NZ
dc.identifier.issn0017-9310en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/10721
dc.publisherElsevier
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S001793101730532X?via%3Dihub
dc.rightsCopyright © 2017 Elsevier Ltd. All rights reserved. This is the author’s version of a work that was accepted for publication in (see Citation). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version was published in (see Citation). The original publication is available at (see Publisher's Version).
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectHeat and mass transferen_NZ
dc.subjectFlow regimesen_NZ
dc.subjectCrossflowen_NZ
dc.subjectLiquid sheeten_NZ
dc.subjectGas streamen_NZ
dc.titleCharacterising the Heat and Mass Transfer Coefficients for a Crossflow Interaction of Air and Wateren_NZ
dc.typeJournal Article
pubs.elements-id278142
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences
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