Published Dec 14, 2016



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Patricia Fernández-Morales, PhD http://orcid.org/0000-0003-2344-1418

Carlos Alberto Cano-Montoya, MSc

Jesús Alberto Pérez-Mesa, MSc

María Ángeles Navacerrada, PhD

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Abstract

Objetivo: se hicieron pruebas de transferencia térmica y de caída de presión para determinar los coeficientes de permeabilidad y de conductividad térmica de espumas metálicas de aluminio fabricadas mediante el proceso IPS (Infiltración de Preformas Solubles). Método: para ambas pruebas, se utilizaron muestras de espumas metálicas con 50mm de diámetro y 20mm de espesor, con tamaños de poro de 0.5, 1.0 y 2.0mm y una densidad relativa de 0.34. Para la realización de las pruebas de caída de presión, se realizó una adaptación de un sistema de flujo de fluidos y, los valores de permeabilidad se calcularon utilizando la ley de Darcy. Por otra parte, para obtener los coeficientes de conductividad se utilizó el ensayo de la caja térmica y la ley de Fourier. Resultados: se encontró que hay una influencia importante del tamaño de los poros en los valores de permeabilidad y de conductividad térmica obtenidos. Por último, los resultados se compararon con los obtenidos por otros investigadores, determinando que estos son muy consistentes con los encontrados en el presente trabajo. Conclusiones: nuestro interés es mejorar el conocimiento sobre las espumas metálicas y en este sentido, proponer la posibilidad de su uso en aplicaciones que involucran flujo de fluidos y transferencia de calor.

Keywords

Aluminum, foams, permeability, thermal conductivityAluminio, espumas, permeabilidad, conductividad térmica

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How to Cite
Fernández-Morales, P., Cano-Montoya, C. A., Pérez-Mesa, J. A., & Navacerrada, M. Ángeles. (2016). Thermal and Permeability Properties of Metal Aluminum Foams for Functional Applications. Ingenieria Y Universidad, 21(1), 115–130. https://doi.org/10.11144/Javeriana.iyu21-1.tppm
Section
Bioengineering and chemical engineering