Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s40430-023-04074-4 http://hdl.handle.net/11449/246843 |
Resumo: | This study covers the thermal simulation of an industrial furnace used to produce ceramic frits, a material requested for glazes and coatings of tiles and porcelains. The current production in the studied kiln is around 700 kg/h, and the furnace consumes around 1.0 MW by firing natural gas with pure oxygen. In this process, energy transfer by radiation is dominant, and species-like CO2 and H2O in the flue gas constitute a participant gas that interferes in the heat transfer. Eddy Dissipation Model, Weighted Sum of Gray Gases, and k- ϵ with a turbulence intensity of 5% are selected as models for combustion, absorption of participant media, and turbulence, respectively. A kinetic model WD 1-step is chosen for the reaction of CH4/O2 with a slight oxidizer’s excess. The combustion chamber and load domain are solved separately but coupled during iterations to improve stability and reduce computational cost. A simplified multiphase model is prescribed at the load based on thermodynamic properties as temperature functions. Experimental measurements of the furnace are used to validate numerical results. Two new positions of the chimney are proposed, and the furnaces’ performance is compared with the current operational model in the industry. Improvement in production is observed for a chimney in the front top of the furnace. With a chimney in the top back, the current case presents the second-best configuration tested, followed by the case with a chimney in the top center. |
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Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic fritsOxy-combustionParticipant mediaThermal radiationThermal simulationVitreous materialThis study covers the thermal simulation of an industrial furnace used to produce ceramic frits, a material requested for glazes and coatings of tiles and porcelains. The current production in the studied kiln is around 700 kg/h, and the furnace consumes around 1.0 MW by firing natural gas with pure oxygen. In this process, energy transfer by radiation is dominant, and species-like CO2 and H2O in the flue gas constitute a participant gas that interferes in the heat transfer. Eddy Dissipation Model, Weighted Sum of Gray Gases, and k- ϵ with a turbulence intensity of 5% are selected as models for combustion, absorption of participant media, and turbulence, respectively. A kinetic model WD 1-step is chosen for the reaction of CH4/O2 with a slight oxidizer’s excess. The combustion chamber and load domain are solved separately but coupled during iterations to improve stability and reduce computational cost. A simplified multiphase model is prescribed at the load based on thermodynamic properties as temperature functions. Experimental measurements of the furnace are used to validate numerical results. Two new positions of the chimney are proposed, and the furnaces’ performance is compared with the current operational model in the industry. Improvement in production is observed for a chimney in the front top of the furnace. With a chimney in the top back, the current case presents the second-best configuration tested, followed by the case with a chimney in the top center.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Agência Nacional do Petróleo, Gás Natural e BiocombustíveisSão Paulo State University (UNESP), Av. Profa Isette Corrêa Fontão, 505, Jardim das Flores, SPR. Eng. Agronômico Andrei Cristian Ferreira Federal University of Santa Catarina (UFSC), s/n, Trindade, SCUniversity of Vale do Itajai (UNIVALI), R. Uruguai, 458, Centro, SCFederal University of Santa Catarina (UFSC), R. Dona Francisca, 8300, Bloco U, Zona Industrial Norte, SCSão Paulo State University (UNESP), Av. Profa Isette Corrêa Fontão, 505, Jardim das Flores, SPCNPq: 141276/2018-5Agência Nacional do Petróleo, Gás Natural e Biocombustíveis: PRH09-ANP-MME-MCTUniversidade Estadual Paulista (UNESP)Universidade Federal de Santa Catarina (UFSC)University of Vale do Itajai (UNIVALI)Filho, Edemar Morsch [UNESP]de Paulo Nicolau, VicenteSeman, Laio OrielPossamai, Talita Sauter2023-07-29T12:51:57Z2023-07-29T12:51:57Z2023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s40430-023-04074-4Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 45, n. 3, 2023.1806-36911678-5878http://hdl.handle.net/11449/24684310.1007/s40430-023-04074-42-s2.0-85148285905Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineeringinfo:eu-repo/semantics/openAccess2023-07-29T12:51:58Zoai:repositorio.unesp.br:11449/246843Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:24:04.324524Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
title |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
spellingShingle |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits Filho, Edemar Morsch [UNESP] Oxy-combustion Participant media Thermal radiation Thermal simulation Vitreous material |
title_short |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
title_full |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
title_fullStr |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
title_full_unstemmed |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
title_sort |
Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits |
author |
Filho, Edemar Morsch [UNESP] |
author_facet |
Filho, Edemar Morsch [UNESP] de Paulo Nicolau, Vicente Seman, Laio Oriel Possamai, Talita Sauter |
author_role |
author |
author2 |
de Paulo Nicolau, Vicente Seman, Laio Oriel Possamai, Talita Sauter |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Santa Catarina (UFSC) University of Vale do Itajai (UNIVALI) |
dc.contributor.author.fl_str_mv |
Filho, Edemar Morsch [UNESP] de Paulo Nicolau, Vicente Seman, Laio Oriel Possamai, Talita Sauter |
dc.subject.por.fl_str_mv |
Oxy-combustion Participant media Thermal radiation Thermal simulation Vitreous material |
topic |
Oxy-combustion Participant media Thermal radiation Thermal simulation Vitreous material |
description |
This study covers the thermal simulation of an industrial furnace used to produce ceramic frits, a material requested for glazes and coatings of tiles and porcelains. The current production in the studied kiln is around 700 kg/h, and the furnace consumes around 1.0 MW by firing natural gas with pure oxygen. In this process, energy transfer by radiation is dominant, and species-like CO2 and H2O in the flue gas constitute a participant gas that interferes in the heat transfer. Eddy Dissipation Model, Weighted Sum of Gray Gases, and k- ϵ with a turbulence intensity of 5% are selected as models for combustion, absorption of participant media, and turbulence, respectively. A kinetic model WD 1-step is chosen for the reaction of CH4/O2 with a slight oxidizer’s excess. The combustion chamber and load domain are solved separately but coupled during iterations to improve stability and reduce computational cost. A simplified multiphase model is prescribed at the load based on thermodynamic properties as temperature functions. Experimental measurements of the furnace are used to validate numerical results. Two new positions of the chimney are proposed, and the furnaces’ performance is compared with the current operational model in the industry. Improvement in production is observed for a chimney in the front top of the furnace. With a chimney in the top back, the current case presents the second-best configuration tested, followed by the case with a chimney in the top center. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:51:57Z 2023-07-29T12:51:57Z 2023-03-01 |
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://dx.doi.org/10.1007/s40430-023-04074-4 Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 45, n. 3, 2023. 1806-3691 1678-5878 http://hdl.handle.net/11449/246843 10.1007/s40430-023-04074-4 2-s2.0-85148285905 |
url |
http://dx.doi.org/10.1007/s40430-023-04074-4 http://hdl.handle.net/11449/246843 |
identifier_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 45, n. 3, 2023. 1806-3691 1678-5878 10.1007/s40430-023-04074-4 2-s2.0-85148285905 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129063171129344 |