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Título del libro: 2018 Ieee International Autumn Meeting On Power, Electronics And Computing, Ropec 2018
Título del capítulo: Numerical simulation of the implementation of cooling micro-fins in a 6061 alloy

Autores UNAM:
HECTOR JAVIER VERGARA HERNANDEZ; OCTAVIO VAZQUEZ GOMEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2019
Palabras clave:

Aluminum sheet; Fins (heat exchange); Heat sinks; Heat transfer coefficients; Numerical methods; Numerical models; Control volume methods; Dimensionless number; Experimental and numerical studies; Heating system; Maximum temperature; Micro fins; Transport equation; User Defined Functions; Aluminum alloys


Resumen:

An experimental and numerical study was carried out to analyze the effect of cooling micro-fins on the heat transfer coefficient in 6061 aluminum sheets subjected to a constant heat flow in a Joule heating system. For the numerical simulation, two User Defined Functions were implemented in a commercial program to solve the constitutive transport equations with the control volume method. The first UDF was used to establish the heat generation term by electric current; the second UDF was employed to calculate the heat transfer coefficient by convection based on the Grashof and Prandtl dimensionless numbers. The experimental results showed that at a constant heat flow, both sheets reach different maximum temperatures, 400 °C for the sheet without micro fins and 320 °C with micro fins. The coefficient of heat transfer was increased by an average of 25% using micro fins on aluminum sheet 6061. © 2018 IEEE.


Entidades citadas de la UNAM: