Intermittent drying and draft tube design for spouted bed
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Tipo de documento: | Tese |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/15478 |
Resumo: | The conventional spouted bed has presented several limitations that restrict the use on an industrial scale. Thus, studies of different methodologies and configurations have been performed to overcome such limitations. Limited processing capacity (scaling-up) and energy issues are some of the main problems considered from an industrial point of view. Alternatives as a heat recovery system lost in the exhaust air, intermittent drying, and draft tube can be promising and have not been explored in the spouted bed. Therefore, the main objective of this Ph.D. thesis is to design a spouted bed with a heat recovery system lost in the exhaust air, coupling the methodology of the intermittency and the use of the draft tube. Two types of intermittency (reduction and total interruption of the air flow) and five different intermittency profiles have been evaluated, including the use of time-variant intermittency ratios. Alumina, soybean, and barley have been used as particulate materials. Regarding the internal devices, three different configurations have been employed: without, nonporous, and open-sided. Based on particle image velocimetry (PTV), a new draft tube is designed for the equipment proposed, i.e., a spouted bed with a heat recovery system built according to the results obtained and the design criteria of our research group. Thus, the current Ph.D. thesis contributed to obtain energy-efficient equipment with suitable and feasible characteristics for industrial applications. |
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Brito, Ronaldo Correia deFreire, José Teixeirahttp://lattes.cnpq.br/2270677706718167Béttega, Rodrigohttp://lattes.cnpq.br/1379682125857376http://lattes.cnpq.br/411627910209935137bd88d1-b25e-4ad3-b55a-bf0d746e63b52022-01-18T12:22:01Z2022-01-18T12:22:01Z2021-12-08BRITO, Ronaldo Correia de. Intermittent drying and draft tube design for spouted bed. 2021. Tese (Doutorado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15478.https://repositorio.ufscar.br/handle/ufscar/15478The conventional spouted bed has presented several limitations that restrict the use on an industrial scale. Thus, studies of different methodologies and configurations have been performed to overcome such limitations. Limited processing capacity (scaling-up) and energy issues are some of the main problems considered from an industrial point of view. Alternatives as a heat recovery system lost in the exhaust air, intermittent drying, and draft tube can be promising and have not been explored in the spouted bed. Therefore, the main objective of this Ph.D. thesis is to design a spouted bed with a heat recovery system lost in the exhaust air, coupling the methodology of the intermittency and the use of the draft tube. Two types of intermittency (reduction and total interruption of the air flow) and five different intermittency profiles have been evaluated, including the use of time-variant intermittency ratios. Alumina, soybean, and barley have been used as particulate materials. Regarding the internal devices, three different configurations have been employed: without, nonporous, and open-sided. Based on particle image velocimetry (PTV), a new draft tube is designed for the equipment proposed, i.e., a spouted bed with a heat recovery system built according to the results obtained and the design criteria of our research group. Thus, the current Ph.D. thesis contributed to obtain energy-efficient equipment with suitable and feasible characteristics for industrial applications.Apesar de suas vantagens, o leito de jorro tem apresentado diversas limitações que impedem sua aplicação em escala industrial e vem motivando o estudo de diferentes configurações e metodologias. Como principais problemas do ponto de vista industrial, destaca-se as restrições na capacidade de processamento e as questões energéticas do equipamento, que lhe atribuem uma baixa eficiência e alto consumo energético. Para contornar os problemas descritos, a utilização do tubo draft, de um sistema de recuperação do calor perdido no ar de exaustão e a metodologia da intermitência constituem alternativas que não têm sido exploradas no leito de jorro e combinadas podem representar uma solução promissora para a aplicação do equipamento no setor industrial. Deste modo, o objetivo da presente tese foi avaliar a metodologia intermitente e a inserção de tubos draft em leito de jorro para o processamento de sólidos particulados, visando a aplicação em leito de jorro com sistema de recuperação de calor do ar de exaustão. Dois tipos de intermitência (redução e interrupção total da vazão de ar) e cinco diferentes razões de intermitência foram avaliados, incluindo a razão de intermitência variável. Alumina, soja e cevada foram os materiais particulados utilizados para a análise da intermitência e design dos tubos draft. Em relação aos tubos, três diferentes configurações foram utilizadas: tubos sólidos, com as laterais abertas e sem tubos. Baseando-se em uma técnica de rastreamento de partículas (Particle tracking velocimetry –PTV), um novo critério de design foi proposto para o desenvolvimento de tubos draft. Deste modo, os resultados obtidos na presente tese contribuíram para obtenção de um equipamento energeticamente eficiente com características viáveis e adequadas para aplicações industriais.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Processos n° 2017/01856-7Processos n° 2018/22655-2engUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Engenharia Química - PPGEQUFSCarAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessLeito de jorroIntermitênciaSecagemDryingSpouted bedEnergy efficiencyEnergy consumptionENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICAENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICAIntermittent drying and draft tube design for spouted bedSecagem intermitente e desenvolvimento de tubos draft para leito de jorroinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis6006002e542afc-9fec-43b4-b11a-1eb2ed3a1f3dreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALTese_RCB_UFSCar v.final.pdfTese_RCB_UFSCar v.final.pdfTese de doutoradoapplication/pdf3679623https://repositorio.ufscar.br/bitstream/ufscar/15478/1/Tese_RCB_UFSCar%20v.final.pdf702c2749441b64784a0cbc6dd3554e8fMD51Carta Comprovante assinada pelo orientador (assinada) copy (1).pdfCarta Comprovante assinada pelo orientador (assinada) copy (1).pdfCarta Comprovanteapplication/pdf155195https://repositorio.ufscar.br/bitstream/ufscar/15478/3/Carta%20Comprovante%20assinada%20pelo%20orientador%20%28assinada%29%20copy%20%281%29.pdf0d80503535c71672069f7945bfc115e5MD53CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.ufscar.br/bitstream/ufscar/15478/4/license_rdfe39d27027a6cc9cb039ad269a5db8e34MD54TEXTTese_RCB_UFSCar v.final.pdf.txtTese_RCB_UFSCar v.final.pdf.txtExtracted texttext/plain423803https://repositorio.ufscar.br/bitstream/ufscar/15478/5/Tese_RCB_UFSCar%20v.final.pdf.txtf03fef85a78f40e2886730a18b4b9cafMD55Carta Comprovante assinada pelo orientador (assinada) copy (1).pdf.txtCarta Comprovante assinada pelo orientador (assinada) copy (1).pdf.txtExtracted texttext/plain1451https://repositorio.ufscar.br/bitstream/ufscar/15478/7/Carta%20Comprovante%20assinada%20pelo%20orientador%20%28assinada%29%20copy%20%281%29.pdf.txt028e3cb89dbe4ff29cb7f15edd191203MD57THUMBNAILTese_RCB_UFSCar v.final.pdf.jpgTese_RCB_UFSCar v.final.pdf.jpgIM Thumbnailimage/jpeg6332https://repositorio.ufscar.br/bitstream/ufscar/15478/6/Tese_RCB_UFSCar%20v.final.pdf.jpga9da491bfeb2b4f4827775d7fc573df5MD56Carta Comprovante assinada pelo orientador (assinada) copy (1).pdf.jpgCarta Comprovante assinada pelo orientador (assinada) copy (1).pdf.jpgIM Thumbnailimage/jpeg6468https://repositorio.ufscar.br/bitstream/ufscar/15478/8/Carta%20Comprovante%20assinada%20pelo%20orientador%20%28assinada%29%20copy%20%281%29.pdf.jpg748bd03192c1bc3de5e6aa5f9d106010MD58ufscar/154782023-09-18 18:32:21.75oai:repositorio.ufscar.br:ufscar/15478Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:32:21Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.eng.fl_str_mv |
Intermittent drying and draft tube design for spouted bed |
dc.title.alternative.por.fl_str_mv |
Secagem intermitente e desenvolvimento de tubos draft para leito de jorro |
title |
Intermittent drying and draft tube design for spouted bed |
spellingShingle |
Intermittent drying and draft tube design for spouted bed Brito, Ronaldo Correia de Leito de jorro Intermitência Secagem Drying Spouted bed Energy efficiency Energy consumption ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
title_short |
Intermittent drying and draft tube design for spouted bed |
title_full |
Intermittent drying and draft tube design for spouted bed |
title_fullStr |
Intermittent drying and draft tube design for spouted bed |
title_full_unstemmed |
Intermittent drying and draft tube design for spouted bed |
title_sort |
Intermittent drying and draft tube design for spouted bed |
author |
Brito, Ronaldo Correia de |
author_facet |
Brito, Ronaldo Correia de |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/4116279102099351 |
dc.contributor.author.fl_str_mv |
Brito, Ronaldo Correia de |
dc.contributor.advisor1.fl_str_mv |
Freire, José Teixeira |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2270677706718167 |
dc.contributor.advisor-co1.fl_str_mv |
Béttega, Rodrigo |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/1379682125857376 |
dc.contributor.authorID.fl_str_mv |
37bd88d1-b25e-4ad3-b55a-bf0d746e63b5 |
contributor_str_mv |
Freire, José Teixeira Béttega, Rodrigo |
dc.subject.por.fl_str_mv |
Leito de jorro Intermitência Secagem |
topic |
Leito de jorro Intermitência Secagem Drying Spouted bed Energy efficiency Energy consumption ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
dc.subject.eng.fl_str_mv |
Drying Spouted bed Energy efficiency Energy consumption |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
description |
The conventional spouted bed has presented several limitations that restrict the use on an industrial scale. Thus, studies of different methodologies and configurations have been performed to overcome such limitations. Limited processing capacity (scaling-up) and energy issues are some of the main problems considered from an industrial point of view. Alternatives as a heat recovery system lost in the exhaust air, intermittent drying, and draft tube can be promising and have not been explored in the spouted bed. Therefore, the main objective of this Ph.D. thesis is to design a spouted bed with a heat recovery system lost in the exhaust air, coupling the methodology of the intermittency and the use of the draft tube. Two types of intermittency (reduction and total interruption of the air flow) and five different intermittency profiles have been evaluated, including the use of time-variant intermittency ratios. Alumina, soybean, and barley have been used as particulate materials. Regarding the internal devices, three different configurations have been employed: without, nonporous, and open-sided. Based on particle image velocimetry (PTV), a new draft tube is designed for the equipment proposed, i.e., a spouted bed with a heat recovery system built according to the results obtained and the design criteria of our research group. Thus, the current Ph.D. thesis contributed to obtain energy-efficient equipment with suitable and feasible characteristics for industrial applications. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021-12-08 |
dc.date.accessioned.fl_str_mv |
2022-01-18T12:22:01Z |
dc.date.available.fl_str_mv |
2022-01-18T12:22:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BRITO, Ronaldo Correia de. Intermittent drying and draft tube design for spouted bed. 2021. Tese (Doutorado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15478. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/15478 |
identifier_str_mv |
BRITO, Ronaldo Correia de. Intermittent drying and draft tube design for spouted bed. 2021. Tese (Doutorado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2021. Disponível em: https://repositorio.ufscar.br/handle/ufscar/15478. |
url |
https://repositorio.ufscar.br/handle/ufscar/15478 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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600 600 |
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2e542afc-9fec-43b4-b11a-1eb2ed3a1f3d |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
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openAccess |
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Universidade Federal de São Carlos Câmpus São Carlos |
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Programa de Pós-Graduação em Engenharia Química - PPGEQ |
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UFSCar |
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Universidade Federal de São Carlos Câmpus São Carlos |
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