A model on the basis of analytics for computing maximum heat transfer in porous fins

Kundu, Balaram; Bhanja, Dipankar; Lee, Kwan-Soo

doi:10.1016/j.ijheatmasstransfer.2012.07.069

Cited by 88 publications

(41 citation statements)

References 43 publications

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“…Hamdan and Al-Nimr [3] studied the increase in heat transfer between two parallel porous channels by using porous fins. Kundu and his colleagues presented an analytical study to determine the performance of convective porous fins with various geometries [4]. Numerical study on the heat transfer of cylindrical porous fins was carried out by Saedodin and Sadeghi [5] and they also achieved results similar to the previous studies.…”

Section: Introductionmentioning

confidence: 80%

“…By applying the Fourier's law of heat conduction at the base of the fin, the dimensionless form of heat transfer rate per unit area in actual condition can be written as [4,16] Q ¼ q…”

Section: Calculation Of Heat Transfer Rate and Efficiencymentioning

confidence: 99%

“…The maximum heat transfer rate when the entire fin surface is at the base temperature (ideal condition) can be calculated as [4,16] …”

Section: Calculation Of Heat Transfer Rate and Efficiencymentioning

confidence: 99%

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Analytical investigation of porous pin fins with variable section in fully-wet conditions

Vahabzadeh

Ganji

Abbasi

2015

Case Studies in Thermal Engineering

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a b s t r a c tThe present work investigates the temperature distribution, heat transfer rate, efficiency and optimization of porous pin fins in fully wet conditions. The thickness varies along the length of the fin and the lateral surface equation is defined as functions that include diversification fins (rectangular, triangular, convex parabolic and concave parabolic sections). Fins are made of aluminium and the tips of fins are insulated. Furthermore, it is assumed that the heat transfer coefficient depends on temperature and in the fin it changes according to temperature changes. In order to derivethe heat transfer equation, energy balance and Darcy model are used. After presenting the governing equation to obtain the temperature distribution, least squares method (LSM) is applied. Comparison of the results between analytical solution and numerical outcome (fourth order Runge-Kutta method) shows that LSM is a convenient and powerful method in engineering problems. Then the effects of various geometric and thermophysical parameters (power index for geometry (n), porosity, Biot number and relative humidity) on the dimensionless temperature fin, efficiency and heat transfer rate are examined. Optimum design analysis was also carried out.

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Section: Introductionmentioning

confidence: 80%

“…By applying the Fourier's law of heat conduction at the base of the fin, the dimensionless form of heat transfer rate per unit area in actual condition can be written as [4,16] Q ¼ q…”

Section: Calculation Of Heat Transfer Rate and Efficiencymentioning

confidence: 99%

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Analytical investigation of porous pin fins with variable section in fully-wet conditions

Vahabzadeh

Ganji

Abbasi

2015

Case Studies in Thermal Engineering

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“…They inferred that circular and square perforated fins have almost the same amount of heat removal rate but circular perforated fins have remarkably less pressure drop than that of square perforated fins. Kundu et al [7] studied analytically the performance and optimum design of porous fin. As compared to a solid fin there was a significant increase in heat transfer through porous fins.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Rectangular Fins with Holes in Free Convection

Singh¹

2017

IJRASET

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In the present work, an experimental study has been conducted on rectangular fin array with holes under free convection heat transfer. The effect of perforation diameter and angle of inclination on heat transfer from rectangular fin array have been analysed. The performance of solid fin array and the perforated fin arrays with fin spacing 6mm, fin perforation diameter of 4, 6 and 8mm, and fin inclination angle 0, 30, 45, 60 and 90º, are investigated and compared in steady state heat transfer. It was found that with the increase in the fin perforation diameter, the increase in the heat transfer rate was achieved with the advantage of weight reduction of fin array block. With the increase in fin inclination angle from 0 to 90º, an increase in heat transfer rate was also observed.

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“…To the authors' knowledge, the twodimensional treatment of straight fins has been mostly done for the trapezoidal profile with straight sides (wherein the rectangular profile and triangular profile are particular cases). Representative references are cited in chronological order: Lau and Tan [3], Chung et al [4], Look [5], Aparecido and Cotta [6], Huang and Shah [7], Razelos and Georgiou [8], Juca and Prata [9], Aziz [10], Yeh [11], Onur [12], Kang and Look [13], Casarosa and Franco [14], Singh et al [15], Xia and Jacobi [16], Marin et al [17], Kang [18], Gorobetz [19], Malik and Rafiq [20], Karvinen and Karvinen [21], Kundu et al [22], Lindstedt et al [23], Iqbal et al [24], Nguyen and Yang [25], and Fyrillas and Leontiou [26]. Incidentally, the other type of straight fins, called pin fins or spines have been excluded in the list.…”

Section: Introductionmentioning

confidence: 99%

Absolute maximum heat transfer rendered by straight fins with quarter circle profile using Finite Element Analysis

Campo

Celentano

2016

Applied Thermal Engineering

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A model on the basis of analytics for computing maximum heat transfer in porous fins

Cited by 88 publications

References 43 publications

Analytical investigation of porous pin fins with variable section in fully-wet conditions

Analytical investigation of porous pin fins with variable section in fully-wet conditions

Performance Evaluation of Rectangular Fins with Holes in Free Convection

Absolute maximum heat transfer rendered by straight fins with quarter circle profile using Finite Element Analysis

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