Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors

Detalhes bibliográficos
Autor(a) principal: Pontes, Péricles Crisiron
Data de Publicação: 2017
Outros Autores: Naveira-Cotta, Carolina Palma, Quaresma, João Nazareno Nonato
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRJ
Texto Completo: http://hdl.handle.net/11422/8326
Resumo: Indisponível.
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spelling Pontes, Péricles CrisironNaveira-Cotta, Carolina PalmaQuaresma, João Nazareno Nonato2019-06-06T15:56:17Z2023-11-30T03:03:29Z2017-04-281290-0729http://hdl.handle.net/11422/832610.1016/j.ijthermalsci.2017.03.022Indisponível.A three-dimensional nonlinear reaction-convection-diffusion model is proposed to analyze mass transfer with temperature effects, within micro-reactors of rectangular cross-section, towards the simulation of the transesterification process in biodiesel synthesis. The coupled nonlinear partial differential equations that govern the concentration of the species involved in the synthesis, is obtained from the general three-dimensional species balance equations for an isothermal and steady state system with constant physical properties. A kinetic model is considered to describe the variation of the species due to the transesterification process, assuming second order homogeneous and reversible chemical reactions. The velocity profile is analytically derived from the Navier-Stokes equations, considering fully developed stratified laminar flow of two immiscible Newtonian fluids in a rectangular cross section micro-reactor, with a plane interface between them and without field forces, and obtained by the Classical Integral Transform Technique (CITT). The nonlinear mass transport equations are then solved by the hybrid numerical-analytical approach known as the Generalized Integral Transform Technique (GITT). In the present GITT solution, two alternative eigenvalue problems are proposed, accounting or not accounting for the space variable velocity profile influence in the eigenfunction expansion basis, in order to investigate the differences in the convergence behavior of the solutions obtained through the two different auxiliary problems. The results for the concentration profiles of the biodiesel and triglyceride species are critically compared with literature data for the limiting case of parallel plates, showing a good agreement among them. The analysis also indicates that improved convergence rates are achievable through the eigenvalue problem with variable coefficients. The effects of governing parameters such as residence time, micro-reactor dimensions, and especially temperature, are investigated. It is then inspected the relative gains in triglycerides conversion rates at higher temperatures and residence times and lower micro-reactor hydraulic diameter.Submitted by Jairo Amaro (jairo.amaro@sibi.ufrj.br) on 2019-06-06T15:56:17Z No. of bitstreams: 1 2-2017_Three-dimensional-reaction-convection-diffusion-min.pdf: 1428842 bytes, checksum: 440fb7fc9fb7121e40c6376c3c6cf35a (MD5)Made available in DSpace on 2019-06-06T15:56:17Z (GMT). No. of bitstreams: 1 2-2017_Three-dimensional-reaction-convection-diffusion-min.pdf: 1428842 bytes, checksum: 440fb7fc9fb7121e40c6376c3c6cf35a (MD5) Previous issue date: 2017-04-28engElsevierBrasilNúcleo Interdisciplinar de Dinâmica dos FluidosInternational Journal of Thermal SciencesCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSBiodieselMicro-reactorTransesterificationIntegral transformsReaction-convection-diffusion equationsHybrid methodsThree-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactorsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article118104122365 diasinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRJinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJORIGINAL2-2017_Three-dimensional-reaction-convection-diffusion-min.pdf2-2017_Three-dimensional-reaction-convection-diffusion-min.pdfArtigoapplication/pdf1428842http://pantheon.ufrj.br:80/bitstream/11422/8326/1/2-2017_Three-dimensional-reaction-convection-diffusion-min.pdf440fb7fc9fb7121e40c6376c3c6cf35aMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81853http://pantheon.ufrj.br:80/bitstream/11422/8326/2/license.txtdd32849f2bfb22da963c3aac6e26e255MD5211422/83262023-11-30 00:03:29.344oai:pantheon.ufrj.br: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Repositório de PublicaçõesPUBhttp://www.pantheon.ufrj.br/oai/requestopendoar:2023-11-30T03:03:29Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.en.fl_str_mv Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
title Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
spellingShingle Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
Pontes, Péricles Crisiron
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Biodiesel
Micro-reactor
Transesterification
Integral transforms
Reaction-convection-diffusion equations
Hybrid methods
title_short Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
title_full Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
title_fullStr Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
title_full_unstemmed Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
title_sort Three-dimensional reaction-convection-diffusion analysis with temperature influence for biodiesel synthesis in micro-reactors
author Pontes, Péricles Crisiron
author_facet Pontes, Péricles Crisiron
Naveira-Cotta, Carolina Palma
Quaresma, João Nazareno Nonato
author_role author
author2 Naveira-Cotta, Carolina Palma
Quaresma, João Nazareno Nonato
author2_role author
author
dc.contributor.author.fl_str_mv Pontes, Péricles Crisiron
Naveira-Cotta, Carolina Palma
Quaresma, João Nazareno Nonato
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
topic CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Biodiesel
Micro-reactor
Transesterification
Integral transforms
Reaction-convection-diffusion equations
Hybrid methods
dc.subject.por.fl_str_mv Biodiesel
dc.subject.eng.fl_str_mv Micro-reactor
Transesterification
Integral transforms
Reaction-convection-diffusion equations
Hybrid methods
description Indisponível.
publishDate 2017
dc.date.issued.fl_str_mv 2017-04-28
dc.date.accessioned.fl_str_mv 2019-06-06T15:56:17Z
dc.date.available.fl_str_mv 2023-11-30T03:03:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/11422/8326
dc.identifier.issn.pt_BR.fl_str_mv 1290-0729
dc.identifier.doi.pt_BR.fl_str_mv 10.1016/j.ijthermalsci.2017.03.022
identifier_str_mv 1290-0729
10.1016/j.ijthermalsci.2017.03.022
url http://hdl.handle.net/11422/8326
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.en.fl_str_mv International Journal of Thermal Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Núcleo Interdisciplinar de Dinâmica dos Fluidos
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRJ
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Repositório Institucional da UFRJ
collection Repositório Institucional da UFRJ
bitstream.url.fl_str_mv http://pantheon.ufrj.br:80/bitstream/11422/8326/1/2-2017_Three-dimensional-reaction-convection-diffusion-min.pdf
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