Continuous casting heat transfer model – The spray cooling control problem
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2023 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/44637 |
Resumo: | In the steel industry, the continuous casting process is regarded as the second significant technical innovation after the advent of the oxygen steelmaking process. Prevailing thermal conditions are a dominant factor in the quality of the product. The common practice of spray control in which water flow in the sprays is proportional to the casting speed is inadequate to unsteady state conditions during speed changes. The objectives of the present study were twofold. The first was to study the basic principles of spray control. As a required tool, a mathematical model for the thermal field was developed. This model was to be used to simulate the temperature distribution in the strand. The second objective was to use these principles to develop a model for controlling the sprays. The thermal model has been used to analyze the effects of both practices on the surface temperature of the strand. The results have shown that a significant temperature fluctuation can be generated by proportional control and that the new control model realistically predicts the thermal requirements of the strand during changes in casting speed. |
| id |
UNIFEI_81bc9e74312e8ad8cd2013b62eeda104 |
|---|---|
| oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/44637 |
| network_acronym_str |
UNIFEI |
| network_name_str |
Research, Society and Development |
| repository_id_str |
|
| spelling |
Continuous casting heat transfer model – The spray cooling control problemModelo de transferencia de calor en colada continua - El problema de controlar los aerosoles de enfriamientoModelo de transferência de calor no lingotamento contínuo – O problema do controle dos sprays de resfriamentoColada continuaModelos matemáticosEnfriamiento por aspersiónAutomatizaciónDefectos de fundición.Continuous castingMathematical modelsSpray coolingAutomationCasting defects.Lingotamento contínuoModelos matemáticosResfriamento por sprayAutomaçãoDefeitos de fundição.In the steel industry, the continuous casting process is regarded as the second significant technical innovation after the advent of the oxygen steelmaking process. Prevailing thermal conditions are a dominant factor in the quality of the product. The common practice of spray control in which water flow in the sprays is proportional to the casting speed is inadequate to unsteady state conditions during speed changes. The objectives of the present study were twofold. The first was to study the basic principles of spray control. As a required tool, a mathematical model for the thermal field was developed. This model was to be used to simulate the temperature distribution in the strand. The second objective was to use these principles to develop a model for controlling the sprays. The thermal model has been used to analyze the effects of both practices on the surface temperature of the strand. The results have shown that a significant temperature fluctuation can be generated by proportional control and that the new control model realistically predicts the thermal requirements of the strand during changes in casting speed.En la industria del acero, el proceso de fundición continua se considera la segunda innovación técnica importante después de la aparición del proceso de fabricación de acero con oxígeno. Las condiciones térmicas predominantes son un factor dominante en la calidad del producto. La práctica común de control de pulverización en la que el flujo de agua en las pulverizaciones es proporcional a la velocidad de fundición es inadecuada para condiciones de estado inestable durante los cambios de velocidad. Los objetivos del presente estudio fueron dobles. El primero fue estudiar los principios básicos del control de aspersiones. Como herramienta necesaria se desarrolló un modelo matemático para el campo térmico. Este modelo se iba a utilizar para simular la distribución de temperatura en el cordón. El segundo objetivo era utilizar estos principios para desarrollar un modelo para controlar las pulverizaciones. El modelo térmico se ha utilizado para analizar los efectos de ambas prácticas sobre la temperatura superficial del cordón. Los resultados han demostrado que se puede generar una fluctuación de temperatura significativa mediante el control proporcional y que el nuevo modelo de control predice de manera realista los requisitos térmicos de la hebra durante los cambios en la velocidad de fundición.Na indústria siderúrgica, o processo de lingotamento contínuo é considerado a segunda inovação técnica significativa após o advento do processo de produção de aço a oxigênio. As condições térmicas predominantes são um fator dominante na qualidade do produto. A prática comum de controle de sprays, na qual o fluxo de água nos sprays é proporcional à velocidade de lingotamento, é inadequada para condições de estado transiente durante mudanças de velocidade. Os objetivos do presente estudo foram duplos. A primeira foi estudar os princípios básicos do controle de sprays. Como ferramenta necessária, foi desenvolvido um modelo matemático para o campo térmico. Este modelo deveria ser usado para simular a distribuição de temperatura no veio. O segundo objetivo foi utilizar esses princípios para desenvolver um modelo de controle dos sprays. O modelo térmico foi utilizado para analisar os efeitos de ambas as práticas na temperatura superficial do veio. Os resultados mostraram que uma flutuação significativa de temperatura pode ser gerada pelo controle proporcional e que o novo modelo de controle prevê realisticamente os requisitos térmicos do veio durante mudanças na velocidade de lingotamento.Research, Society and Development2023-12-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/4463710.33448/rsd-v12i14.44637Research, Society and Development; Vol. 12 No. 14; e102121444637Research, Society and Development; Vol. 12 Núm. 14; e102121444637Research, Society and Development; v. 12 n. 14; e1021214446372525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/44637/35669Copyright (c) 2023 Luis Antonio S. Baptista; Roberto Carlos Sales; Carolina Moreira de Almeida; Wysllan J. L. Garção; Alexandre F. Ferreirahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBaptista, Luis Antonio S. Sales, Roberto CarlosAlmeida, Carolina Moreira de Garção, Wysllan J. L. Ferreira, Alexandre F. 2024-01-01T11:23:38Zoai:ojs.pkp.sfu.ca:article/44637Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-01T11:23:38Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Continuous casting heat transfer model – The spray cooling control problem Modelo de transferencia de calor en colada continua - El problema de controlar los aerosoles de enfriamiento Modelo de transferência de calor no lingotamento contínuo – O problema do controle dos sprays de resfriamento |
| title |
Continuous casting heat transfer model – The spray cooling control problem |
| spellingShingle |
Continuous casting heat transfer model – The spray cooling control problem Baptista, Luis Antonio S. Colada continua Modelos matemáticos Enfriamiento por aspersión Automatización Defectos de fundición. Continuous casting Mathematical models Spray cooling Automation Casting defects. Lingotamento contínuo Modelos matemáticos Resfriamento por spray Automação Defeitos de fundição. |
| title_short |
Continuous casting heat transfer model – The spray cooling control problem |
| title_full |
Continuous casting heat transfer model – The spray cooling control problem |
| title_fullStr |
Continuous casting heat transfer model – The spray cooling control problem |
| title_full_unstemmed |
Continuous casting heat transfer model – The spray cooling control problem |
| title_sort |
Continuous casting heat transfer model – The spray cooling control problem |
| author |
Baptista, Luis Antonio S. |
| author_facet |
Baptista, Luis Antonio S. Sales, Roberto Carlos Almeida, Carolina Moreira de Garção, Wysllan J. L. Ferreira, Alexandre F. |
| author_role |
author |
| author2 |
Sales, Roberto Carlos Almeida, Carolina Moreira de Garção, Wysllan J. L. Ferreira, Alexandre F. |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Baptista, Luis Antonio S. Sales, Roberto Carlos Almeida, Carolina Moreira de Garção, Wysllan J. L. Ferreira, Alexandre F. |
| dc.subject.por.fl_str_mv |
Colada continua Modelos matemáticos Enfriamiento por aspersión Automatización Defectos de fundición. Continuous casting Mathematical models Spray cooling Automation Casting defects. Lingotamento contínuo Modelos matemáticos Resfriamento por spray Automação Defeitos de fundição. |
| topic |
Colada continua Modelos matemáticos Enfriamiento por aspersión Automatización Defectos de fundición. Continuous casting Mathematical models Spray cooling Automation Casting defects. Lingotamento contínuo Modelos matemáticos Resfriamento por spray Automação Defeitos de fundição. |
| description |
In the steel industry, the continuous casting process is regarded as the second significant technical innovation after the advent of the oxygen steelmaking process. Prevailing thermal conditions are a dominant factor in the quality of the product. The common practice of spray control in which water flow in the sprays is proportional to the casting speed is inadequate to unsteady state conditions during speed changes. The objectives of the present study were twofold. The first was to study the basic principles of spray control. As a required tool, a mathematical model for the thermal field was developed. This model was to be used to simulate the temperature distribution in the strand. The second objective was to use these principles to develop a model for controlling the sprays. The thermal model has been used to analyze the effects of both practices on the surface temperature of the strand. The results have shown that a significant temperature fluctuation can be generated by proportional control and that the new control model realistically predicts the thermal requirements of the strand during changes in casting speed. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-12-25 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/44637 10.33448/rsd-v12i14.44637 |
| url |
https://rsdjournal.org/index.php/rsd/article/view/44637 |
| identifier_str_mv |
10.33448/rsd-v12i14.44637 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/44637/35669 |
| dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Research, Society and Development |
| publisher.none.fl_str_mv |
Research, Society and Development |
| dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 12 No. 14; e102121444637 Research, Society and Development; Vol. 12 Núm. 14; e102121444637 Research, Society and Development; v. 12 n. 14; e102121444637 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
| instname_str |
Universidade Federal de Itajubá (UNIFEI) |
| instacron_str |
UNIFEI |
| institution |
UNIFEI |
| reponame_str |
Research, Society and Development |
| collection |
Research, Society and Development |
| repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
| repository.mail.fl_str_mv |
rsd.articles@gmail.com |
| _version_ |
1797052636124413952 |