Fins are essentially used in diverse engineering applications to increase the heat transfer between the hot and cold media. In this paper, a technique for computing the analytic approximate solution of the nonlinear differential equations resulting from heat transfer problems, in particular through fins, is developed. The simplicity of the approach presented here is due to its base functions, which makes this method straightforward to apply and formulate without any need for discretization. Analysis of the error and comparisons with the other methods are presented. A few physically interesting fin problems of heat transfer are treated to illustrate that the proposed algorithm generates highly accurate solutions.
Issue Section:
Heat Transfer Enhancement
Keywords:
fins,
extended surfaces,
series solution,
analytic solution,
fin efficiency,
heat transfer
References
1.
Lienard
, J. H.
, 2011
, A Heat Transfer Textbook
, Phlogiston Press
, Cambridge, MA.2.
Sunden
, B.
, and Heggs
, P. J.
, 2000
, Recent Advances in Analysis of Heat Transfer for Fin Type Surfaces
, WIT Press
, Boston, MA.3.
Sharqawy
, M. H.
, and Zubair
, S. M.
, 2008
, “Efficiency and Optimization of Straight Fins With Combined Heat and Mass Transfer–An Analytical Solution
,” Appl. Therm. Eng.
, 28
(17–18), pp. 2279
–2288
.10.1016/j.applthermaleng.2008.01.0034.
Moitsheki
, R. J.
, Hayat
, T.
, and Malik
, M. Y.
, 2010
, “Some Exact Solutions of the fin Problem With a Power law Temperature-Dependent Thermal Conductivity
,” Nonlinear Anal.: Real World Appl.
, 11
, pp. 3287
–3294
.10.1016/j.nonrwa.2009.11.0215.
Turkyilmazoglu
, M.
, 2012
, “Exact Solutions to Heat Transfer in Straight Fins of Varying Exponential Shape Having Temperature Dependent Properties
,” Int. J. Therm. Sci.
, 55
, pp. 69
–79
.10.1016/j.ijthermalsci.2011.12.0196.
Aziz
, A.
, and Hug
, E.
, 1995
, “Perturbation Solution for Convecting fin With Variable Thermal Conductivity
,” ASME J. Heat Transfer
, 97
(2
), pp. 300
–310
.10.1115/1.34503617.
Bert
, C. W.
, 2001
, “Application of Differential Transform Method to Heat Conduction in Tapered Fins
,” ASME J. Heat Transfer
, 124
(1
), pp. 2008
–2009
.10.1115/1.14233168.
Abbasbandy
, S.
, 2006
, “The Application of Homotopy Analysis Method to Nonlinear Equations Arising in Heat Transfer
,” Phys. Lett. A
, 360
, pp. 109
–113
.10.1016/j.physleta.2006.07.0659.
Rashidi
, M. M.
, and Erfani
, E.
, 2009
, “New Analytical Method for Solving Burgers' and Nonlinear Heat Transfer Equations and Comparison With HAM
,” Comput. Phys. Commun.
, 180
(9), pp. 1539
–1544
.10.1016/j.cpc.2009.04.00910.
Hajmohammadi
, M. R.
, and Nourazar
, S. S.
, 2014
, “Conjugate Forced Convection Heat Transfer From a Heated Flat Plate of Finite Thickness and Temperature-Dependent Thermal Conductivity
,” Heat Transfer Eng.
, 35
(9), pp. 863
–874
.10.1080/01457632.2014.85289611.
Singer
, I.
, and Turkel
, E.
, 1998
, “High-Order Finite Difference Method for the Helmholtz Equation
,” Comput. Meth. Appl. Mech. Eng.
, 163
, pp. 343
–358
.10.1016/S0045-7825(98)00023-112.
Wrobel
, L. C.
, 2002
, The Boundary Element Method. Applications in Thermofluids and Acoustics
, Wiley
, New York.13.
Atkinson
, K. E.
, 1997
, The Numerical Solution of Integral Equations of the Second Kind
, Cambridge University
, Cambridge, UK.14.
Chen
, C. S.
, and Chen
, C. C.
, 2010
, “Numerical Solution for the Hyperbolic Heat Conduction Problems in the Radial-Spherical Coordinate System Using a Hybrid Green's Function Method
,” Int. J. Therm. Sci.
, 49
, pp. 1193
–1196
.10.1016/j.ijthermalsci.2010.01.01815.
Orzechowski
, T.
, 2007
, “Determining Local Values of the Heat Transfer Coefficient on a fin Surface
,” Exp. Therm. Fluid Sci.
, 31
, pp. 947
–955
.10.1016/j.expthermflusci.2006.10.00516.
Castell
, A.
, Sole
, C.
, Medrano
, M.
, Roca
, J.
, Cabeza
, L. F.
, and Garcia
, D.
, 2008
, “Natural Convection Heat Transfer Coefficients in Phase Change Material (pcm) Modules With External Vertical Fins
,” Appl. Therm. Eng.
, 28
, pp. 1676
–1686
.10.1016/j.applthermaleng.2007.11.00417.
Turkyilmazoglu
, M.
, 2013
, “Effective Computation of Exact and Analytic Approximate Solutions to Singular Nonlinear Equations of Lane-Emden-Fowler Type
,” Appl. Math. Modell.
, 37
, pp. 7539
–7548
.10.1016/j.apm.2013.02.01418.
Turkyilmazoglu
, M.
, 2013
, “An Effective Approach for Numerical Solutions of High-Order Fredholm Integro-Differential Equations
,” Appl. Math. Comput.
, 15
, pp. 384
–398
.10.1016/j.amc.2013.10.07919.
Aziz
, A.
, and Na
, T. Y.
, 1984
, Perturbation Method in Heat Transfer
, Hemisphere
, Washington, DC.20.
Yaghoobi
, H.
, and Torabi
, M.
, 2011
, “The Application of Differential Transformation Method to Nonlinear Equations Arising in Heat Transfer
,” Int. Commun. Heat Mass Transfer
, 38
, pp. 815
–820
.10.1016/j.icheatmasstransfer.2011.03.02521.
Nakayama
, A.
, and Kohama
, H.
, 1987
, “A General Similarity Transformation for Combined Free and Forced-Convection Flows Within a Fluid-Saturated Porous Medium
,” ASME J. Heat Transfer
, 109
(4
), pp. 1041
–1045
.10.1115/1.324818022.
Magyari
, E.
, Pop
, I.
, and Keller
, B.
, 2001
, “Exact Dual Solutions Occurring in Darcy Mixed Convection Flow
,” Int. J. Heat Mass Transfer
, 42
, pp. 4563
–4566
.10.1016/S0017-9310(01)00054-023.
Moradi
, A.
, and Ahmadikia
, H.
, 2010
, “Analytical Solution for Different Profiles of fin With Temperature-Dependent Thermal Conductivity
,” Math. Prob. Eng.
, 2010
, pp. 1
–15
.10.1155/2010/568263Copyright © 2014 by ASME
You do not currently have access to this content.