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Heat Transfer Research
インパクトファクター: 1.199 5年インパクトファクター: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v40.i4.50
pages 333-349

Efficiency Determination of Radiators with Temperature-Dependent Thermal Conductivity Using Two He's Methods

Zaman Ziabakhsh Ganji
Department of Mechanical Engineering, Babol University of Technology, P. O. Box 484, Babol, Iran
Davood Ganji (D.D. Ganji)
Babol University
http://sciencewatch.com/dr/ne/08decne
Abdolhosein Fereidoon
Department of Mechanical Engineering, Faculty of Engineering, Semnan University, Iran
Yasser Rostamiyan
Department of Mechanical Engineering, Islamic Azad University-Semnan Branch-Iran

要約

Variational iteration method (VIM) and homotopy perturbation method (HPM) have been used to evaluate the efficiency of pipe/fin with temperature-dependent thermal conductivity and to determine the temperature distribution within the pipe/fin. These methods are useful and practical for solving the nonlinear heat transfer equation, which is associated with variable thermal conductivity condition. VIM and HPM provide an approximate analytical solution in the form of an infinite power series. The pipe/fin efficiency of the radiators with temperature-dependent thermal conductivity has been obtained as a function of thermo-geometric fin parameter and the thermal conductivity parameter describing the variation of the thermal conductivity.


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