Thermal transfer analysis of tubes with extended surface with fractal design
Heat 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 d...
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| Format: | Online |
| Language: | eng |
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Universidad Pedagógica y Tecnológica de Colombia
2018
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| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749 |
| _version_ | 1801706081567637504 |
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| author | Llano-Sánchez, Luis Eduardo Domínguez-Cajeli, Darío Manuel Ruiz-Cárdenas, Luis Carlos |
| author_facet | Llano-Sánchez, Luis Eduardo Domínguez-Cajeli, Darío Manuel Ruiz-Cárdenas, Luis Carlos |
| author_sort | Llano-Sánchez, Luis Eduardo |
| collection | OJS |
| description | Heat 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. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-7749 |
| institution | Revista Facultad de Ingeniería |
| language | eng |
| publishDate | 2018 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-77492022-06-15T16:08:29Z Thermal transfer analysis of tubes with extended surface with fractal design Análisis de transferencia térmica de tubos con superficies extendidas con diseño fractal Llano-Sánchez, Luis Eduardo Domínguez-Cajeli, Darío Manuel Ruiz-Cárdenas, Luis Carlos boilers Cesaro curve finite elements fractal design heat transfer Koch Snowflake tubes with extended surface calderas copo de Koch curva de Cesaro diseño fractal elementos finitos transferencia de calor tubos de superficie extendida Heat 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. Los 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. Universidad Pedagógica y Tecnológica de Colombia 2018-01-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research investigación application/pdf application/xml https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749 10.19053/01211129.v27.n47.2018.7749 Revista Facultad de Ingeniería; Vol. 27 No. 47 (2018); 31-37 Revista Facultad de Ingeniería; Vol. 27 Núm. 47 (2018); 31-37 2357-5328 0121-1129 eng https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749/6139 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749/7183 Copyright (c) 2018 Luis Eduardo Llano-Sánchez, Darío Manuel Domínguez-Cajeli, Luis Carlos Ruiz-Cárdenas |
| spellingShingle | boilers Cesaro curve finite elements fractal design heat transfer Koch Snowflake tubes with extended surface calderas copo de Koch curva de Cesaro diseño fractal elementos finitos transferencia de calor tubos de superficie extendida Llano-Sánchez, Luis Eduardo Domínguez-Cajeli, Darío Manuel Ruiz-Cárdenas, Luis Carlos Thermal transfer analysis of tubes with extended surface with fractal design |
| title | Thermal transfer analysis of tubes with extended surface with fractal design |
| title_alt | Análisis de transferencia térmica de tubos con superficies extendidas con diseño fractal |
| title_full | Thermal transfer analysis of tubes with extended surface with fractal design |
| title_fullStr | Thermal transfer analysis of tubes with extended surface with fractal design |
| title_full_unstemmed | Thermal transfer analysis of tubes with extended surface with fractal design |
| title_short | Thermal transfer analysis of tubes with extended surface with fractal design |
| title_sort | thermal transfer analysis of tubes with extended surface with fractal design |
| topic | boilers Cesaro curve finite elements fractal design heat transfer Koch Snowflake tubes with extended surface calderas copo de Koch curva de Cesaro diseño fractal elementos finitos transferencia de calor tubos de superficie extendida |
| topic_facet | boilers Cesaro curve finite elements fractal design heat transfer Koch Snowflake tubes with extended surface calderas copo de Koch curva de Cesaro diseño fractal elementos finitos transferencia de calor tubos de superficie extendida |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/7749 |
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