Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Analysis Of Temperature Profile And Efficiency Of Convective Straight Fins With Temperature Dependent Thermal Conductivity And Internal Heat Generation
Submission Author:
Luiz Chaves , RJ
Co-Authors:
Luiz Fernando Silva Ferreira, Marcos Curi, Luiz Chaves
Presenter: Luiz Chaves
doi://10.26678/ABCM.COBEM2017.COB17-2214
Abstract
Fins are of great importance in many applications of mechanical engineering, and are widely studied for optimizes the heat transfer between a surface and the ambient. In many cases a variable thermal conductivity or/and internal heat generation performs strong effects on performance of extended surfaces. In this paper, we analyze with a routine from Wolfram Mathematica software the temperature distribution within the fin, to estimate the efficiency of convective straight fins with temperature dependent internal heat generation and thermal conductivity. In order to show the effectiveness of the computational method, the results obtained from a direct study of the effects of some physical parameters are demonstrated in this work, presenting the temperature distribution for a range of parameters values appeared in the mathematical formulation. Initially is studied constant thermal conductivity and temperature dependent heat generation. To verify the accuracy of the proposed method, this work shows that the implemented procedure is very effective and convenient for convective fin problems with an excellent agreement when compared with benchmark solutions and numerical solutions from literature for the efficiency and temperature profile analysis, achieving suitable results of such problems.
Keywords
Convective Straight fins, Fin Efficiency, Variable Heat generation, Variable thermal conductivity
