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Design of calibrators for extruded profiles. Part I: modelling the thermal interchanges

2004Journal article Open access
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dc.contributor.authorNóbrega, J. M.
dc.contributor.authorCarneiro, Olga
dc.contributor.authorCovas, José A
dc.contributor.authorPinho, Fernando
dc.contributor.authorOliveira, Paulo J.
dc.date.accessioned2010-04-28T10:07:32Z
dc.date.available2010-04-28T10:07:32Z
dc.date.issued2004
dc.description.abstractThe parameters influencing the calibration/cooling stage of profile extrusion are discussed, and a numerical finite-volume method code to model the heat transfer is described and validated. For this purpose, the numerical predictions are compared with the analytical solution of a simple problem, with results available in the literature and with those produced by a commercial software. The routines developed are then used to identify the main process parameters and boundary conditions and to estimate their relative importance. The investigation clearly shows the advantages of using several calibrators separated by annealing zones, relative to a single calibrator of the same total length, and the large impact of the contact resistance between extrudate and cooling unit while showing negligible impact of other boundary conditions. A decrease of the extrudate velocity is seen to be also an effective control parameter, but it decreases the production rates.pt
dc.identifier.doi10.1002/pen.20249
dc.identifier.urihttp://hdl.handle.net/10400.6/627
dc.languageeng
dc.titleDesign of calibrators for extruded profiles. Part I: modelling the thermal interchangespt
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issueVol. 44, No. 12, pp. 2216-2228pt
oaire.citation.titlePolymer Engineering and Sciencept
person.familyNameNóbrega
person.familyNameCarneiro
person.familyNameColaço Gomes Covas
person.familyNamePinho
person.familyNameOliveira
person.givenNameJoão Miguel
person.givenNameOlga
person.givenNameJosé António
person.givenNameFernando
person.givenNamePaulo J.
person.identifier.ciencia-idDD14-7E8A-7F7E
person.identifier.ciencia-id7B16-AF92-D14D
person.identifier.ciencia-id7A15-7012-C5DF
person.identifier.orcid0000-0002-5303-6467
person.identifier.orcid0000-0001-5384-0028
person.identifier.orcid0000-0002-9576-4622
person.identifier.orcid0000-0001-9843-7558
person.identifier.ridG-1825-2011
person.identifier.ridD-1035-2011
person.identifier.ridA-4638-2009
person.identifier.scopus-author-id7102046214
person.identifier.scopus-author-id7004283519
person.identifier.scopus-author-id7006647306
person.identifier.scopus-author-id24280605700
rcaap.rightsopenAccess
rcaap.typearticlept
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