Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces

ABSTRACT Continuous tunnel furnace has greater flexibility in heating and high productivity and it was becoming the best option for processing industrialized food products. The main objective of this work is the validation of the results from radiation models viewFactor and FVDOM. In his case, the s...

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Autores principales:	Verdério Júnior,Sílvio Aparecido, Scalon,Vicente Luiz, Avallone,Elson, Mioralli,Paulo César
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2018
Materias:	Radiation model food furnace OpenFOAM®
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052018000400546
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spelling	oai:scielo:S0718-330520180004005462019-02-04Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnacesVerdério Júnior,Sílvio AparecidoScalon,Vicente LuizAvallone,ElsonMioralli,Paulo César Radiation model food furnace OpenFOAM® ABSTRACT Continuous tunnel furnace has greater flexibility in heating and high productivity and it was becoming the best option for processing industrialized food products. The main objective of this work is the validation of the results from radiation models viewFactor and FVDOM. In his case, the software OpenFOAM® was used and one of its applications in the evaluation of net rate heat exchanges by radiation on the mat of a real continuous furnace. The geometry, operational conditions, mesh definition, initial and boundary conditions used in the model were obtained from literature data, technical manuals and operational furnaces found in food industries. The implementation and simulation of physical model, in the OpenFOAM® has several simplifying hypothesis highlighting air is treated as an ideal and incompressible, Newtonian and non-participant to the exchanges of heat by radiation; laminar flow viewFactor and FVDOM radiation models; pressure-velocity coupling algorithm SIMPLE. The results obtained were used to validate the radiation models through analytical results and also the convective heat flux. The orders of magnitude between radiation and convection turn it difficult to correctly evaluate the heat flux. Small fluctuations in temperature and velocity affect considerably and induce oscillations on the heat flux results. The viewFactor radiation model was more advantageous due to its greater simplicity and higher convergence velocity.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.26 n.4 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052018000400546en10.4067/S0718-33052018000400546
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Radiation model food furnace OpenFOAM®
spellingShingle	Radiation model food furnace OpenFOAM® Verdério Júnior,Sílvio Aparecido Scalon,Vicente Luiz Avallone,Elson Mioralli,Paulo César Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
description	ABSTRACT Continuous tunnel furnace has greater flexibility in heating and high productivity and it was becoming the best option for processing industrialized food products. The main objective of this work is the validation of the results from radiation models viewFactor and FVDOM. In his case, the software OpenFOAM® was used and one of its applications in the evaluation of net rate heat exchanges by radiation on the mat of a real continuous furnace. The geometry, operational conditions, mesh definition, initial and boundary conditions used in the model were obtained from literature data, technical manuals and operational furnaces found in food industries. The implementation and simulation of physical model, in the OpenFOAM® has several simplifying hypothesis highlighting air is treated as an ideal and incompressible, Newtonian and non-participant to the exchanges of heat by radiation; laminar flow viewFactor and FVDOM radiation models; pressure-velocity coupling algorithm SIMPLE. The results obtained were used to validate the radiation models through analytical results and also the convective heat flux. The orders of magnitude between radiation and convection turn it difficult to correctly evaluate the heat flux. Small fluctuations in temperature and velocity affect considerably and induce oscillations on the heat flux results. The viewFactor radiation model was more advantageous due to its greater simplicity and higher convergence velocity.
author	Verdério Júnior,Sílvio Aparecido Scalon,Vicente Luiz Avallone,Elson Mioralli,Paulo César
author_facet	Verdério Júnior,Sílvio Aparecido Scalon,Vicente Luiz Avallone,Elson Mioralli,Paulo César
author_sort	Verdério Júnior,Sílvio Aparecido
title	Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
title_short	Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
title_full	Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
title_fullStr	Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
title_full_unstemmed	Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces
title_sort	numerical validation of viewfactor and fvdom radiation models of openfoam® and application in the study of food furnaces
publisher	Universidad de Tarapacá.
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052018000400546
work_keys_str_mv	AT verderiojuniorsilvioaparecido numericalvalidationofviewfactorandfvdomradiationmodelsofopenfoamandapplicationinthestudyoffoodfurnaces AT scalonvicenteluiz numericalvalidationofviewfactorandfvdomradiationmodelsofopenfoamandapplicationinthestudyoffoodfurnaces AT avalloneelson numericalvalidationofviewfactorandfvdomradiationmodelsofopenfoamandapplicationinthestudyoffoodfurnaces AT miorallipaulocesar numericalvalidationofviewfactorandfvdomradiationmodelsofopenfoamandapplicationinthestudyoffoodfurnaces
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Numerical validation of viewFactor and FVDOM radiation models of OpenFOAM® and application in the study of food furnaces

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