Performance and optimization analysis of a constructal T-shaped fin subject to variable thermal conductivity and convective heat transfer coefficient

Kundu, Balaram; Bhanja, Dipankar

doi:10.1016/j.ijheatmasstransfer.2009.09.034

Cited by 74 publications

(33 citation statements)

References 22 publications

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“…A comparative study executed among their work and the published work (13) revealed the fact that the increase in radiation parameter amplifies the dimensionless heat transfer and also predicts a marginally higher optimum aspect ratio, thickness to the length ratio of stem. Lorenzini and Rocha (15) conducted a numerical study to compare the performance of Y-shaped assembly of fins with the one presented by the T-shaped assembly of fins and revealed the superiority of utilizing the Y-shaped structure that T-shaped one.…”

Section: Introductionmentioning

confidence: 99%

“…They also showed that the Tau-shaped assemblies can fill their allotted space better, while exhibiting only a slight decrease in global conductance relative to their T-shaped counterparts. Recently, Kundu and Bhanja (13) have determined analytically the performance and optimum dimensions of T-shape fin with variable thermal conductivity and convective heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

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Radiation Effect on Constructal Design Analysis of a T-Y-Shaped Assembly of Fins

Hajmohammadi

Poozesh

Hosseini

2012

JTST

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In the actual design circumstances, the radiation effect on the cooling performance of the extended surfaces must be taken into consideration. The central goal of this paper is to design the constructal architecture of a T-Y shaped assembly of fins by incorporating the thermal radiation with convection heat transfer. Our motivation in selecting a T-Y shaped assembly of fins is that the so-called assembly is of more cooling performance among the other shapes according to the literature. The temperature field and the peak temperature (hot spot) are calculated from a numerical approach based on finite element method. The peak temperature is minimized by manipulating the geometry of the assembly regarding the constraints of space and materials. A comparative study is executed among the present work and the published work. The comparison revealed that although the optimized geometry is approximately independent of the heat transfer mechanism, the hot spot temperature can be affected when the finned surfaces are exposed to thermal radiation in addition to convection. This issue is more pronounced when the emissivity of the finned surfaces is higher in comparison with the convection heat transfer coefficient.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Radiation Effect on Constructal Design Analysis of a T-Y-Shaped Assembly of Fins

Hajmohammadi

Poozesh

Hosseini

2012

JTST

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“…The optimum design of an annular fin with temperature-dependent thermal conductivity is analyzed by Arslanturk [8]. In a study presented by Kundu and Bhanja [9], an exercise has been devoted to establish an analytical model for thermal performance and optimization of a constructal fin subject to variable thermal conductivity of fin material and convective heat transfer coefficient over the fin surface. The Least Square Method is introduced by Aziz and Bouaziz [10] for predicting the performance of longitudinal fins with variable thermal-conductivity.…”

Section: Introductionmentioning

confidence: 99%

Variation of parameters method for optimizing annular fins with variable thermal properties

Arslantürk¹

2018

Pamukkale J Eng Sci

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“…Performance and optimization analyses of a constructal T-shaped fin when subject to variable thermal conductivity and convective heat transfer coefficient were made by Kundu and Bhanja [7]. Khani and Aziz [8] studied the thermal analysis of a longitudinal trapezoidal fin with the temperature-dependent thermal conductivity and heat transfer coefficient.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis of a fully wet porous radial fin with natural convection and radiation using the spectral collocation method

Khani¹,

Darvishi²,

Gorla³

et al. 2016

International Journal of Applied Mechanics and Engineering

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Heat transfer with natural convection and radiation effect on a fully wet porous radial fin is considered. The radial velocity of the buoyancy driven flow at any radial location is obtained by applying Darcy's law. The obtained non-dimensionalized ordinary differential equation involving three highly nonlinear terms is solved numerically with the spectral collocation method. In this approach, the dimensionless temperature is approximated by Chebyshev polynomials and discretized by Chebyshev-Gausse-Lobatto collocation points. A particular algorithm is used to reduce the nonlinearity of the conservation of energy equation. The present analysis characterizes the effect of ambient temperature in different ways and it provides a better picture regarding the effect of ambient temperature on the thermal performance of the fin. The profiles for temperature distributions and dimensionless base heat flow are obtained for different parameters which influence the heat transfer rate.

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Performance and optimization analysis of a constructal T-shaped fin subject to variable thermal conductivity and convective heat transfer coefficient

Cited by 74 publications

References 22 publications

Radiation Effect on Constructal Design Analysis of a T-Y-Shaped Assembly of Fins

Radiation Effect on Constructal Design Analysis of a T-Y-Shaped Assembly of Fins

Variation of parameters method for optimizing annular fins with variable thermal properties

Thermal analysis of a fully wet porous radial fin with natural convection and radiation using the spectral collocation method

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