Secagem de materiais têxteis
Ano de defesa: | 2016 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de São Carlos
Câmpus São Carlos |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Química - PPGEQ
|
Departamento: |
Não Informado pela instituição
|
País: |
Não Informado pela instituição
|
Palavras-chave em Português: | |
Área do conhecimento CNPq: | |
Link de acesso: | https://repositorio.ufscar.br/handle/ufscar/7872 |
Resumo: | The fabrics are derived from fibers, which are divided into to main groups: natural (like cotton) and chemical (such as rayon and polyester). In the processing of the fabric, drying is a major operation, contributing to the finishing and obtaining a fabric with greater brightness and also better touch. However, each tissue has a different structure and different composition which can influence its absorption capacity and retention of water. The aim of this study is to analyze the drying of 3 types of fabrics (polyester, toweling and jeans), and evaluate how the material characteristics and operating conditions influence the process. Experimental tests were conducted in oven with natural convection, with natural convection, at temperatures of 50, 60 and 70 ° C and also in a tunnel dryer with forced convection under the conditions of 1.0 and 2.0 m / s at the temperatures of 50, 60 and 70 ° C. Besides that, the adjustments of generalized curves of drying were evaluated, there are empirical equations of kinetics. In the evaluation of water absorption in saturated atmosphere at 40 to 60 ° C, it was observed that the polyester is the fabric that absorbs less water while the jeans had greater absorption capacity. It was also found that absorption increases with increasing temperature for all three fabrics. By analyzing the influence of operating conditions on the drying fabrics, the air speed was the variable that most influenced the moisture reduction, indicating that surface resistance was the limiting mechanism in drying. Page model (1949), was the most appropriate to represent the generalized kinetic curves for the fabrics evaluated.The comparative analysis of the fabrics showed that, although significant differences in the type of fiber and fabric structure, these characteristics do not influence the drying of the material, indicating that the drying of materials with high surface area, the process is controlled by the conditions flow. |
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Caneda, Chaiane MessaFerreira, Maria do Carmohttp://lattes.cnpq.br/7070885875161111http://lattes.cnpq.br/52881478542569602016-10-14T14:17:24Z2016-10-14T14:17:24Z2016-04-08CANEDA, Chaiane Messa. Secagem de materiais têxteis. 2016. Dissertação (Mestrado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7872.https://repositorio.ufscar.br/handle/ufscar/7872The fabrics are derived from fibers, which are divided into to main groups: natural (like cotton) and chemical (such as rayon and polyester). In the processing of the fabric, drying is a major operation, contributing to the finishing and obtaining a fabric with greater brightness and also better touch. However, each tissue has a different structure and different composition which can influence its absorption capacity and retention of water. The aim of this study is to analyze the drying of 3 types of fabrics (polyester, toweling and jeans), and evaluate how the material characteristics and operating conditions influence the process. Experimental tests were conducted in oven with natural convection, with natural convection, at temperatures of 50, 60 and 70 ° C and also in a tunnel dryer with forced convection under the conditions of 1.0 and 2.0 m / s at the temperatures of 50, 60 and 70 ° C. Besides that, the adjustments of generalized curves of drying were evaluated, there are empirical equations of kinetics. In the evaluation of water absorption in saturated atmosphere at 40 to 60 ° C, it was observed that the polyester is the fabric that absorbs less water while the jeans had greater absorption capacity. It was also found that absorption increases with increasing temperature for all three fabrics. By analyzing the influence of operating conditions on the drying fabrics, the air speed was the variable that most influenced the moisture reduction, indicating that surface resistance was the limiting mechanism in drying. Page model (1949), was the most appropriate to represent the generalized kinetic curves for the fabrics evaluated.The comparative analysis of the fabrics showed that, although significant differences in the type of fiber and fabric structure, these characteristics do not influence the drying of the material, indicating that the drying of materials with high surface area, the process is controlled by the conditions flow.Os tecidos são originados a partir de fibras têxteis, a quais são divididas em grandes grupos: naturais (como o algodão) e químicas (como o rayon e o poliéster ). No beneficiamento dos tecidos, a secagem é uma operação primordial, que contribui para o acabamento final e obtenção de um tecido com maior brilho e também melhor toque. Porém cada tipo de tecido possui características de estrutura e composição diferentes, o que pode influenciar sua capacidade de absorção e retenção de água. O objetivo deste trabalho foi analisar a secagem de tipos de tecidos (poliéster, atoalhado e jeans), e avaliar como as características dos materiais e as condições operacionais influenciam no processo. Os ensaios experimentais foram conduzidos em estufa com convecção natural, nas temperaturas de 50, 60 e 70 °C e também em secador de túnel com convecção forçada, nas condições de 1,0 e 2,0 m/s e temperaturas de 50, 60 e 70 °C. Além disso, foram avaliados os ajustes das curvas generalizadas de secagem, à equações empíricas de cinética. Na avaliação da absorção de água em atmosfera saturada a 40 e 60 oC, observou-se que o poliéster é o tecido que menos absorve água, enquanto o jeans apresentou maior capacidade de absorção. Constatou-se também que a absorção aumenta com o aumento da temperatura, para os três tipos de tecidos. Ao analisar a influência das condições operacionais na secagem dos tecidos, a velocidade do ar foi a variável que apresentou maior influência na redução de umidade, indicando que resistência superficial foi o mecanismo limitante na secagem. O modelo de Page (1949), foi o mais apropriado para representar as curvas de cinéticas generalizadas para os tecidos avaliados. A análise comparativa entre os tecidos mostrou que, apesar das diferenças significativas no tipo de fibra e estrutura do tecido, estas características não influenciaram a secagem do material, indicando que, na secagem de materiais com elevada área superficial, o processo é controlado pelas condições de escoamento.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Engenharia Química - PPGEQUFSCarSecagem convectivaFibras têxteisResistência interfacialENGENHARIASSecagem de materiais têxteisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisOnlineinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALDissCMC.pdfDissCMC.pdfapplication/pdf3606303https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7872/1/DissCMC.pdf03bf7fccc7e73860758575867e0742edMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7872/2/license.txtae0398b6f8b235e40ad82cba6c50031dMD52TEXTDissCMC.pdf.txtDissCMC.pdf.txtExtracted texttext/plain153132https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7872/3/DissCMC.pdf.txtfa4284049214656ffd8e7edd35350fe5MD53THUMBNAILDissCMC.pdf.jpgDissCMC.pdf.jpgIM Thumbnailimage/jpeg5030https://{{ getenv "DSPACE_HOST" "repositorio.ufscar.br" }}/bitstream/ufscar/7872/4/DissCMC.pdf.jpg6efd37022828cd2bb4023d321efe16d4MD54ufscar/78722019-09-11 02:27:38.701oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-05-25T12:53:14.299467Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Secagem de materiais têxteis |
title |
Secagem de materiais têxteis |
spellingShingle |
Secagem de materiais têxteis Caneda, Chaiane Messa Secagem convectiva Fibras têxteis Resistência interfacial ENGENHARIAS |
title_short |
Secagem de materiais têxteis |
title_full |
Secagem de materiais têxteis |
title_fullStr |
Secagem de materiais têxteis |
title_full_unstemmed |
Secagem de materiais têxteis |
title_sort |
Secagem de materiais têxteis |
author |
Caneda, Chaiane Messa |
author_facet |
Caneda, Chaiane Messa |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/5288147854256960 |
dc.contributor.author.fl_str_mv |
Caneda, Chaiane Messa |
dc.contributor.advisor1.fl_str_mv |
Ferreira, Maria do Carmo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7070885875161111 |
contributor_str_mv |
Ferreira, Maria do Carmo |
dc.subject.por.fl_str_mv |
Secagem convectiva Fibras têxteis Resistência interfacial |
topic |
Secagem convectiva Fibras têxteis Resistência interfacial ENGENHARIAS |
dc.subject.cnpq.fl_str_mv |
ENGENHARIAS |
description |
The fabrics are derived from fibers, which are divided into to main groups: natural (like cotton) and chemical (such as rayon and polyester). In the processing of the fabric, drying is a major operation, contributing to the finishing and obtaining a fabric with greater brightness and also better touch. However, each tissue has a different structure and different composition which can influence its absorption capacity and retention of water. The aim of this study is to analyze the drying of 3 types of fabrics (polyester, toweling and jeans), and evaluate how the material characteristics and operating conditions influence the process. Experimental tests were conducted in oven with natural convection, with natural convection, at temperatures of 50, 60 and 70 ° C and also in a tunnel dryer with forced convection under the conditions of 1.0 and 2.0 m / s at the temperatures of 50, 60 and 70 ° C. Besides that, the adjustments of generalized curves of drying were evaluated, there are empirical equations of kinetics. In the evaluation of water absorption in saturated atmosphere at 40 to 60 ° C, it was observed that the polyester is the fabric that absorbs less water while the jeans had greater absorption capacity. It was also found that absorption increases with increasing temperature for all three fabrics. By analyzing the influence of operating conditions on the drying fabrics, the air speed was the variable that most influenced the moisture reduction, indicating that surface resistance was the limiting mechanism in drying. Page model (1949), was the most appropriate to represent the generalized kinetic curves for the fabrics evaluated.The comparative analysis of the fabrics showed that, although significant differences in the type of fiber and fabric structure, these characteristics do not influence the drying of the material, indicating that the drying of materials with high surface area, the process is controlled by the conditions flow. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-10-14T14:17:24Z |
dc.date.available.fl_str_mv |
2016-10-14T14:17:24Z |
dc.date.issued.fl_str_mv |
2016-04-08 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
CANEDA, Chaiane Messa. Secagem de materiais têxteis. 2016. Dissertação (Mestrado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7872. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/7872 |
identifier_str_mv |
CANEDA, Chaiane Messa. Secagem de materiais têxteis. 2016. Dissertação (Mestrado em Engenharia Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7872. |
url |
https://repositorio.ufscar.br/handle/ufscar/7872 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Engenharia Química - PPGEQ |
dc.publisher.initials.fl_str_mv |
UFSCar |
publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
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Repositório Institucional da UFSCAR |
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