Publicação
Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor
| Resumo: | Liquid foodstuffs with high viscosity are usually processed in plate heat exchangers (PHEs) at laminar or low Reynolds numbers, Re, flows. The tortuosity coefficient is used by the manufacturers for the design and optimization of PHE geometries. Using the finite-element computational fluid dynamics program POLYFLOW®, fully developed laminar flows in double-sine chevron-type PHEs passages are analysed in this work. The corrugation angle and channel aspect ratio of the passages vary in a broad range, PHEs with common area enlargement factors and with high area density being studied. The tortuosity coefficient and the coefficient K (Kozeny´s coefficient in granular beds) from the friction factor correlations increase with the increase of the channels aspect ratio and the decrease of the chevron angle. The shape factor from the PHEs passages also increases with the decrease of the chevron angle and is weakly influenced by the channel aspect ratio. In this paper, relations to predict the tortuosity coefficient and shape factor are proposed, the coefficient K being predicted resorting to the tortuosity coefficient and shape factor. The coefficient K compares well with literature data in the region of common chevron angles, channel aspect ratio and area enlargement factor. |
|---|---|
| Autores principais: | Fernandes, Carla S. |
| Outros Autores: | Dias, Ricardo P.; Nóbrega, João M.; Maia, João M. |
| Assunto: | Plate heat exchangers Friction factor Tortuosity Shape factor |
| Ano: | 2007 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173295309193216 |
|---|---|
| author | Fernandes, Carla S. |
| author2 | Dias, Ricardo P. Nóbrega, João M. Maia, João M. |
| author2_role | author author author |
| author_facet | Fernandes, Carla S. Dias, Ricardo P. Nóbrega, João M. Maia, João M. |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Fernandes, Carla S.\",\"Person.identifier.orcid\":\"0000-0002-3138-7493\"},{\"Person.name\":\"Dias, Ricardo P.\",\"Person.identifier.orcid\":\"0000-0003-1503-998X\"},{\"Person.name\":\"Nóbrega, João M.\"},{\"Person.name\":\"Maia, João M.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Fernandes, Carla S. Dias, Ricardo P. Nóbrega, João M. Maia, João M. |
| datacite.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2008-02-08T10:25:24Z |
| datacite.date.embargoed.fl_str_mv | 2008-02-08T10:25:24Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Plate heat exchangers Friction factor Tortuosity Shape factor |
| datacite.titles.title.fl_str_mv | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Fernandes, Carla S. Dias, Ricardo P. Nóbrega, João M. Maia, João M. |
| dc.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2008-02-08T10:25:24Z |
| dc.date.embargoed.fl_str_mv | 2008-02-08T10:25:24Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/462 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Plate heat exchangers Friction factor Tortuosity Shape factor |
| dc.title.fl_str_mv | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Liquid foodstuffs with high viscosity are usually processed in plate heat exchangers (PHEs) at laminar or low Reynolds numbers, Re, flows. The tortuosity coefficient is used by the manufacturers for the design and optimization of PHE geometries. Using the finite-element computational fluid dynamics program POLYFLOW®, fully developed laminar flows in double-sine chevron-type PHEs passages are analysed in this work. The corrugation angle and channel aspect ratio of the passages vary in a broad range, PHEs with common area enlargement factors and with high area density being studied. The tortuosity coefficient and the coefficient K (Kozeny´s coefficient in granular beds) from the friction factor correlations increase with the increase of the channels aspect ratio and the decrease of the chevron angle. The shape factor from the PHEs passages also increases with the decrease of the chevron angle and is weakly influenced by the channel aspect ratio. In this paper, relations to predict the tortuosity coefficient and shape factor are proposed, the coefficient K being predicted resorting to the tortuosity coefficient and shape factor. The coefficient K compares well with literature data in the region of common chevron angles, channel aspect ratio and area enlargement factor. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/8197d99f-f79d-47ae-ad32-238c67770777/download |
| id | ipb_dcd0f89df7757bf7500aeb05c5a47d2a |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/462 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/462 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Fernandes, Carla S. Fernandes, Carla S. https://www.ciencia-id.pt/F319-3D67-9DB7 F319-3D67-9DB7 http://orcid.org/0000-0002-3138-7493 0000-0002-3138-7493 Dias, Ricardo P. Dias, Ricardo P. http://orcid.org/0000-0003-1503-998X 0000-0003-1503-998X Nóbrega, João M. Maia, João M. |
| publishDate | 2007 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engElsevierenLiquid foodstuffs with high viscosity are usually processed in plate heat exchangers (PHEs) at laminar or low Reynolds numbers, Re, flows. The tortuosity coefficient is used by the manufacturers for the design and optimization of PHE geometries. Using the finite-element computational fluid dynamics program POLYFLOW®, fully developed laminar flows in double-sine chevron-type PHEs passages are analysed in this work. The corrugation angle and channel aspect ratio of the passages vary in a broad range, PHEs with common area enlargement factors and with high area density being studied. The tortuosity coefficient and the coefficient K (Kozeny´s coefficient in granular beds) from the friction factor correlations increase with the increase of the channels aspect ratio and the decrease of the chevron angle. The shape factor from the PHEs passages also increases with the decrease of the chevron angle and is weakly influenced by the channel aspect ratio. In this paper, relations to predict the tortuosity coefficient and shape factor are proposed, the coefficient K being predicted resorting to the tortuosity coefficient and shape factor. The coefficient K compares well with literature data in the region of common chevron angles, channel aspect ratio and area enlargement factor.application/pdfenLaminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factorPersonalFernandes, Carla S.DSpacehttp://dspace.org/items/8f9cf139-cfef-4025-ba87-56425618bc6eDSpacehttp://dspace.org/items/8f9cf139-cfef-4025-ba87-56425618bc6eFernandesCarla S.Ciência IDhttps://www.ciencia-id.ptF319-3D67-9DB7ORCIDhttp://orcid.org0000-0002-3138-7493Researcher IDhttps://www.researcherid.comA-4269-2015Scopus Author IDhttps://www.scopus.com8253740700PersonalDias, Ricardo P.DSpacehttp://dspace.org/items/5e7df3f1-9852-4d4b-8d5a-4e69eb79b164DSpacehttp://dspace.org/items/5e7df3f1-9852-4d4b-8d5a-4e69eb79b164DiasRicardo P.ORCIDhttp://orcid.org0000-0003-1503-998XScopus Author IDhttps://www.scopus.com7102885151Nóbrega, João M.Maia, João M.HostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISSNIsPartOf0255-2701DOIIsPartOf10.1016/j.cep.2007.05.0112008-02-08T10:25:24Z20072007-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/462http://purl.org/coar/access_right/c_abf2open accessPlate heat exchangersFriction factorTortuosityShape factor1300957 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/8197d99f-f79d-47ae-ad32-238c67770777/download |
| spellingShingle | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor Fernandes, Carla S. Plate heat exchangers Friction factor Tortuosity Shape factor |
| status | SINGLETON |
| subject.fl_str_mv | Plate heat exchangers Friction factor Tortuosity Shape factor |
| title | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| title_full | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| title_fullStr | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| title_full_unstemmed | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| title_short | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| title_sort | Laminar flow in chevron-type plate heat exchangers: CFD analysis of tortuosity, shape factor and friction factor |
| topic | Plate heat exchangers Friction factor Tortuosity Shape factor |
| topic_facet | Plate heat exchangers Friction factor Tortuosity Shape factor |
| url | http://hdl.handle.net/10198/462 |
| visible | 1 |