Thermal transfer analysis of tubes with extended surface with fractal design

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dc.contributor.authorLlano Sánchez, Luis Eduardo
dc.contributor.authorDomínguez Cajeli, Darío Manuel
dc.contributor.authorRuiz Cárdenas, Luis Carlos
dc.date.accessioned2018-09-10T15:49:54Z
dc.date.available2018-09-10T15:49:54Z
dc.date.issued2018-01-15
dc.description1 recurso en línea (páginas 31-37).spa
dc.description.abstractOs permutadores de calor estão conformados por tubos com superfícies estendidas, com o propósito de melhorar a transferência de calor entre dois meios, que podem ser um sólido e um líquido em movimento. No presente trabalho expõe-se o desenho que se realizou de um tubo de superfície estendida com geometria fractal, correspondente ao floco de Koch e a curva de Cesaro, com a ferramenta computacional CAD, para logo realizar a análise por elementos finitos CAE e verificar o comportamento térmico do tubo desenhado. Logrou-se obter como resultado reduzir o tempo de transferência de calor e aumentar o fluxo de calor no sistema da seguinte maneira: para tubo liso, 250 W/m2; para superfície de Koch, 500 W/m2; para seis aletas, 1450 W/m2, e, finalmente, para curva de Cesaro, 3600 W/m2. Tudo isto, permitiu evidenciar os limites do desenho e as vantagens que podem chegar a terem relação a sua implementação em maquinarias como condensadores, permutadores de calor e caldeiras.por
dc.description.abstractHeat exchangers are formed by tubes with extended surfaces that improve the transfer of heat between two media (e.g., a solid and a liquid in motion). This paper presents the design of an extended surface tube with fractal geometry, corresponding to the Koch snowflake and the Cesaro curve. For the design, we used the CAD computational tool, and afterwards we performed the CAE finite element analysis and verified the thermal behavior of the designed tube. We were able to reduce the heat transfer time and increase the heat flow in the system in the following manner: for smooth tube, 250 W/m2; for Koch surface, 500 W/m2; for six fins, 1450 W/ m2; and for Cesaro curve, 3600 W/m2. These results demonstrate the limits of the design and the advantages of its implementation in machinery such as condensers, heat exchangers, and boilers.eng
dc.description.abstractLos intercambiadores de calor están conformados por tubos con superficies extendidas, con el propósito de mejorar la transferencia de calor entre dos medios, que pueden ser un sólido y un líquido en movimiento. En el presente trabajo se expone el diseño que se llevó a cabo de un tubo de superficie extendida con geometría fractal, correspondiente al copo de Koch y la curva de Cesaro, con la herramienta computacional CAD, para luego realizar el análisis por elementos finitos CAE y verificar el comportamiento térmico del tubo diseñado. Se logró obtener como resultado reducir el tiempo de transferencia de calor y aumentar el flujo de calor en el sistema del modo siguiente: para tubo liso, 250 W/m2; para superficie de Koch, 500 W/m2; para seis aletas, 1450 W/m2, y, finalmente, para curva de Cesaro, 3600 W/m2. Todo ello, permitió evidenciar los límites del diseño y las ventajas que pueden llegar a tener respecto a su implementación en maquinarias como condensadores, intercambiadores de calor y calderas.spa
dc.description.notesBibliografía: páginas 36-37.spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.citationLlano Sánchez, L. E., Domínguez Cajeli, D. M. & Ruiz Cárdenas, L. C. (2018). Thermal transfer analysis of tubes with extended surface with fractal design. Revista Facultad de Ingeniería, 27(47), 31-37. https://doi.org/10.19053/01211129.v27.n47.2018.7749. http://repositorio.uptc.edu.co/handle/001/2167spa
dc.identifier.doi10.19053/01211129.v27.n47.2018.7749
dc.identifier.issn2357-5328
dc.identifier.urihttp://repositorio.uptc.edu.co/handle/001/2167
dc.language.isoengspa
dc.publisherUniversidad Pedagógica y Tecnológica de Colombiaspa
dc.relation.ispartofjournalRevista Facultad de Ingeniería;Volumen 27, número 47 (Enero-Abril 2018)spa
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dc.rightsCopyright (c) 2018 Universidad Pedagógica y Tecnológica de Colombiaspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.coarhttp://purl.org/coar/access_right/c_abf2spa
dc.rights.creativecommonsAtribución-NoComercial 4.0 Internacional (CC BY-NC 4.0)spa
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/spa
dc.sourcehttps://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749/6139spa
dc.subject.armarcAlternate energy sources
dc.subject.armarcDynamical systems
dc.subject.proposalBoilersspa
dc.subject.proposalCesaro curvespa
dc.subject.proposalFractal designspa
dc.subject.proposalHeat transferspa
dc.subject.proposalKoch Snowflakespa
dc.subject.proposalTubes with extended surfacespa
dc.titleThermal transfer analysis of tubes with extended surface with fractal designspa
dc.title.alternativeAnálisis de transferencia térmica de tubos con superficies extendidas con diseño fractaleng
dc.title.alternativeAnálise de transferência térmica de tubos com superfícies estendidas com desenho fractaleng
dc.typeArtículo de revistaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.redcolhttps://purl.org/redcol/resource_type/ARTspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
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