Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Heat Transfer Research
Импакт фактор: 1.199 5-летний Импакт фактор: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 51, 2020 Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016006705
pages 401-417

OPTIMIZATION OF HEAT TRANSFER THROUGH ANNULAR FINS WITH A THERMODEPENDENT THERMAL CONDUCTIVITY AND HEAT TRANSFER COEFFICIENT

Youb Khaled Benkahla
Faculté de Génie Mécanique et de Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene USTHB, B.P. 32, El-Alia Bab-Ezzouar, 16111 Algiers, Algeria

Краткое описание

A numerical investigation based on the finite volume method is undertaken in order to study heat transfer through an annular fin of different cross sections (rectangular, triangular, hyperbolic, and parabolic). The validation of the computing code is confirmed by comparing the present results with those obtained from analytical and numerical solutions found in the literature. The first part of the study consists of examining the fin's geometrical parameters effect, i.e., the reduced length R and the characteristic parameter mf on its efficiency. The emphasis is put thereafter on the effect of the thermal dependence of the fin's thermal conductivity, then that of the heat transfer coefficient, and, finally, the simultaneous variation of both of them. An optimization of the fin's dimensions in the case of thermodependent properties is then undertaken. When considering only the fin's efficiency in cases of constant and thermodependent properties, it appears that the annular fin of rectangular cross section has a significant efficiency in comparison with the three other geometrical forms but when optimizing the fin's dimensions, the concave parabolic fin seems to be more efficient and, thus, heat transfer is more enhanced.


Articles with similar content:

Optimal design of two-dimensional rectangular annular fins with variable heat transfer coefficients
International Heat Transfer Conference 12, Vol.48, 2002, issue
Benjamin T. F. Chung, Shiyue Shan
Methods for Solving Problems of Antennas Analysis and Synthesis by Means of Atomic Functions
Telecommunications and Radio Engineering, Vol.56, 2001, issue 6&7
Victor Filippovich Kravchenko
ON THE INTEGRAL TRANSFORM SOLUTION OF THE HEAT DIFFUSION EQUATION IN A SLAB WITH RADIANT FLUX AT THE OUTER SURFACE
ICHMT DIGITAL LIBRARY ONLINE, Vol.3, 1997, issue
C. M. Hackenberg, A. G. Oliveira Filho
Highly Nonlinear Temperature-Dependent Fin Analysis by Variational Iteration Method
Heat Transfer Research, Vol.41, 2010, issue 2
E. Hosseinzadeh, F. Fouladi, Ganji Domairry, Amin Barari
Frequency Dependences of Dissipative Losses in Multimode Waveguides
Telecommunications and Radio Engineering, Vol.53, 1999, issue 12
V. M. Volkov