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dc.contributor.authorShekarian, Ehsanen_NZ
dc.contributor.authorJafari Nasr, Mohammad R.en_NZ
dc.contributor.authorTarighaleslami, Amir H.en_NZ
dc.contributor.authorWalmsley, Timothy Gordonen_NZ
dc.contributor.authorAtkins, Martin Johnen_NZ
dc.contributor.authorSahebjamee, Nadiaen_NZ
dc.contributor.authorAlaghehbandan, Mohammaden_NZ
dc.date.accessioned2017-01-22T23:24:37Z
dc.date.available2016en_NZ
dc.date.available2017-01-22T23:24:37Z
dc.date.issued2016en_NZ
dc.identifier.citationShekarian, E., Jafari Nasr, M. R., Tarighaleslami, A. H., Walmsley, T. G., Atkins, M. J., Sahebjamee, N., & Alaghehbandan, M. (2016). Impact of hybrid heat transfer enhancement techniques in shell and tube heat exchanger design. Chemical Engineering Transactions, 52, 1159–1164. https://doi.org/10.3303/CET1652194en
dc.identifier.issn1974-9791en_NZ
dc.identifier.urihttp://hdl.handle.net/10289/10849
dc.description.abstractDespite the advantages of shell and tube heat exchangers, one of their major problems is low thermal efficiency. This problem can be improved by using heat transfer enhancement techniques such as adding nanoparticles to the hot or cold fluids, and/or using tube inserts as turbulators on tube side as well as changing baffles to a helical or twisted profile on the shell side. Although all of these techniques increase the thermal efficiency; however, engineers still need a quantitative approach to assess the impact of these technologies on the shell and tube heat exchangers. This study attempts to provide a combination of such techniques to increase the impact of these improvements quantitatively. For this purpose, at first stage the thermal and hydraulic characteristics of pure fluid, Al₂O₃/water nanofluid in a plain tube equipped with and without twisted tape turbulator is evaluated based on a developed rapid design algorithm. Therefore, the impact of using enhanced techniques either in form of individual or in hybrid format and the increase of nanoparticle concentration in base fluid have been studied. The results show that using turbulators individually and in hybrid format with nanofluid can be effected on design parameters of a typical heat exchanger by reducing the required heat transfer area up to 10 %.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherAIDICen_NZ
dc.rightsThis article is published in the Chemical Engineering Transactions. © 2016 AIDIC. Used with permission.
dc.titleImpact of hybrid heat transfer enhancement techniques in shell and tube heat exchanger designen_NZ
dc.typeJournal Article
dc.identifier.doi10.3303/CET1652194en_NZ
dc.relation.isPartOfChemical Engineering Transactionsen_NZ
pubs.begin-page1159
pubs.elements-id145039
pubs.end-page1164
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/School of Science
pubs.organisational-group/Waikato/OOVC
pubs.organisational-group/Waikato/OOVC/AVCS
pubs.organisational-group/Waikato/Staff
pubs.publisher-urlhttp://www.aidic.it/cet/16/52/programma.htmlen_NZ
pubs.volume52en_NZ


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