Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/1685
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dc.creatorOkita, W. M.-
dc.creatorReno, J.M.-
dc.creatorPeres, A.P.-
dc.creatorResende, J.V.-
dc.date.accessioned2014-02-14T20:22:10Z-
dc.date.available2014-02-14T20:22:10Z-
dc.date.issued2013-
dc.identifier.citationOKITA, W. M. et al. Heat transfer analyses using computational fluid dynamics in the air blast freezing of guava pulp in large containers. Brazilian Journal of Chemical Engineering, São Paulo, v. 30, n. 4, p. 811-824, Oct./Dec. 2013.pt_BR
dc.identifier.urihttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000400013&lng=en&nrm=iso&tlng=enpt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/1685-
dc.description.abstractHeat transfer during the freezing of guava pulp conditioned in large containers such as in stacked boxes (34 L) and buckets (20 L) and unstacked drums (200 L) is discussed. The air velocities across the cross-section of the tunnel were measured, and the values in the outlet of the evaporator were used as the initial conditions in computational fluid dynamics (CFD) simulations. The model tested was turbulent standard k-ε. The CFD-generated convective heat transfer coefficients were mapped on the surfaces for each configuration and used in procedures for the calculation of freezing-time estimates. These estimates were compared with the experimental results for validation. The results showed that CFD determined representative coefficients and produced good correlations between the predicted and experimental values when applied to the freezing-time estimates for the box and drum configurations. The errors depended on the configuration and the adopted mesh (3-D grid) construction.pt_BR
dc.languageenpt_BR
dc.publisherABEQpt_BR
dc.rightsacesso abertopt_BR
dc.sourceBrazilian Journal of Chemical Engineeringpt_BR
dc.subjectFluidodinâmica computacionalpt_BR
dc.subjectTransferência de calorpt_BR
dc.subjectPolpa de frutaspt_BR
dc.subjectAirflowpt_BR
dc.subjectHeat transferpt_BR
dc.subjectFruit pulppt_BR
dc.subjectFreezing timept_BR
dc.titleHeat transfer analyses using computational fluid dynamics in the air blast freezing of guava pulp in large containerspt_BR
dc.typeArtigopt_BR
Appears in Collections:DCA - Artigos publicados em periódicos



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