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Inverse problem methodology for thermal-physical properties estimation of frozen green beans

2004Journal article Open access
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dc.contributor.authorMartins, R.C.
dc.contributor.authorSilva, C. L. M.
dc.date.accessioned2010-11-19T12:28:42Z
dc.date.available2010-11-19T12:28:42Z
dc.date.issued2004
dc.description.abstractFrozen green beans (Phaseolus vulgaris, L.) thermal conductivity (k) and heat capacity (Cp) were determined experimentally by a one dimensional finite difference (transient method) and differential scanning calorimetry, respectively. Thermal properties were also estimated by the inverse problem methodology (IPM). Heat capacity and thermal conductivity behaviour with temperature were modelled by the Schwartzberg equations and linear relationship, respectively below and above the melting point. These equations were used inside a finite element model (FEM) to simulate green beans phase transition under thawing conditions. The sequential simplex method was used to minimise the error vector of the FEM inverse problem, to estimate thermal capacity and thermal conductivity. The accuracy of thermal-physical properties estimated by the two methodologies was compared with data from literature. The thermo-physical properties estimated by the IPM converged for physically meaningful values. Important conclusions were obtained about errors in model predictions. Furthermore, the IPM thermal properties increased the accuracy of simulations, especially during phase transition.por
dc.identifier.citationMARTINS, R. C. ; SILVA, C. L. M. - Inverse problem methodology for thermal-physical properties estimation of frozen green beans. Journal of Food Engineering. ISSN 0260-8774. Vol. 63, n.º 4 (2004), p. 383-392por
dc.identifier.urihttp://hdl.handle.net/10400.14/3509
dc.language.isoengpor
dc.publisherElsevierpor
dc.subjectThermo-physical propertiespor
dc.subjectInverse problempor
dc.subjectFrozen green beanspor
dc.titleInverse problem methodology for thermal-physical properties estimation of frozen green beanspor
dc.typejournal article
dspace.entity.typePublication
person.familyNameMartins
person.familyNameSilva
person.givenNameRosa
person.givenNameCristina
person.identifier1473674
person.identifier.ciencia-id051A-5A02-E227
person.identifier.ciencia-id6611-634A-132C
person.identifier.orcid0000-0003-1842-4840
person.identifier.orcid0000-0002-0495-3955
person.identifier.ridA-3568-2013
person.identifier.scopus-author-id56275265400
person.identifier.scopus-author-id7201387397
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication4d866bf9-2d47-4f28-b22e-4894422ac14f
relation.isAuthorOfPublication4e2903de-0679-4cb1-981e-10de14c0c995
relation.isAuthorOfPublication.latestForDiscovery4e2903de-0679-4cb1-981e-10de14c0c995

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