Determination of the optimum louver angle of a louvered fin with elliptical tubes//Determinación del ángulo de la veneciana óptimo de una aleta veneciana con tubos elípticos

Authors

  • Alberto Menéndez Pérez

Abstract

Los intercambiadores de calor constituyen un componente esencial en muchos de los procesos vitales de nuestra vida cotidiana. El siguiente trabajo va dirigido al estudio los intercambiadores de calor compactos, específicamente a los de tubo elíptico y aleta veneciana. El objetivo final es obtener el comportamiento termo-hidráulico de geometrías tubo-aletas venecianas, a través de simulación numérica. Se estudian velocidades de entrada al modelo correspondientes a bajos números de Reynolds (inferiores a 1000 basados en el diámetro hidráulico). El comportamiento de estas geometrías es simulado mediante el empleo de técnicas de Dinámica  de Fluidos Computacional. El mallado de los modelos es descrito y se establecen las condiciones de contorno necesarias para la solución de las ecuaciones. Se determinó la eficacia de la aleta según el método de Schmidt y se realizaron comparaciones del comportamiento termo hidráulico entre los diferentes modelos estudiados.

Palabras clave: aletas venecianas, intensificación de la transferencia de calor, simulación numérica, CFD.
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Abstract

Heat exchangers are an essential component in many of the vital processes of our daily lives. The following work is directed to the study of compact heat exchangers, specifically those with elliptical tubes and louver fins. Through numerical simulation it is intended to obtain the thermo-hydraulic behavior of louver tube-fin geometries. Model inlet velocities corresponding to low Reynolds numbers (less than 1000 based on hydraulic diameter) are studied. The behavior ofthese geometries is simulated through the use of Computational Fluid Dynamics techniques. Establishing of the necessary boundary conditions to solve the equations as well as meshing of all models are described. The fin efficiency was determined according to the Schmidt method and the different models were compared regarding their thermohydraulic behavior.

Key words: louver fins, enhancement of heat transfer, numerical simulation, CFD.

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Published

2018-01-01

How to Cite

1.
Menéndez Pérez A. Determination of the optimum louver angle of a louvered fin with elliptical tubes//Determinación del ángulo de la veneciana óptimo de una aleta veneciana con tubos elípticos. Ing. Mec. [Internet]. 2018 Jan. 1 [cited 2025 Sep. 13];22(1):7-13. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/598

Issue

Vol. 22 No. 1 (2019): enero-abril

Section

Original article

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