Optimum Design of Longitudinal Rectangular Fins and Cylindrical Spines with Variable Heat Transfer Coefficient

Chung, Benjamin T.F.; Iyer, Jaisree

doi:10.1080/01457639308939792

Cited by 42 publications

(15 citation statements)

References 9 publications

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“…The remarkable study relating to analysis and optimum design of the straight plate fins (SPF) and cylindrical pin fins (CPF) with variable heat transfer coefficient has been presented in paper by Chung and Iyer [7]. The heat balance integral approach has been extended in this paper to determine the optimum dimensions of the SPF and CPF by incorporating transverse heat conduction.…”

Section: Introductionmentioning

confidence: 97%

Analysis of the 1D heat conduction problem for a single fin with temperature dependent heat transfer coefficient – Part II. Optimum characteristics of straight plate and cylindrical pin fins

Dul'kin

Garas’ko

2008

International Journal of Heat and Mass Transfer

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Section: Introductionmentioning

confidence: 97%

Analysis of the 1D heat conduction problem for a single fin with temperature dependent heat transfer coefficient – Part II. Optimum characteristics of straight plate and cylindrical pin fins

Dul'kin

Garas’ko

2008

International Journal of Heat and Mass Transfer

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“…Due to the high demand for lightweight, compact, and economical fins, the optimization of fin geometry is of great importance. Therefore, fins must be designed to achieve maximum heat removal with minimum material expenditure; however, the ease of manufacturing of the fin shape should not be overlooked [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Characteristics of Grooved Fin Under Forced Convection

Dixit

Patil

2015

Heat Transfer Engineering

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Material removal from an extended surface in the form of perforations and slots is a proven technique to augment heat transfer rates with a considerable reduction in the surface weight. This work presents the outcomes of experimental investigation on heat transfer characteristics of a plate fin having grooves of various configurations on two broad faces. The experimental data pertaining to heat transfer have been collected by varying Reynolds number from 1500 to 5000, for transverse grooved, inclined grooved, V-grooved, and multi-V-grooved fin. The results of the grooved fin are compared with that of a smooth conventional fin to gauge the heat transfer performance of modified fin. The maximum enhancement in Nusselt number corresponds to the inclined groove fin, whereas the highest value of grooved fin effectiveness is obtained for the multi-Vgrooved fin. The Nusselt number correlations are presented for different fin configurations tested in this work.

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“…The interruption aims at promoting surface turbulence and is mainly intended to increase the heat transfer coefficient of the surface area (Kutscher, 1994). It has been reported that non-flat surfaces have natural convection coefficients that are 50% to 100% greater than those of flat surfaces (Chung and Iyer, 1993). Many other researchers have reported a similar trend for interrupted, perforated and serrated surfaces, attributing the improvement to restarting the thermal boundary layer after each interruption, indicating that the increase in the convection coefficient is more than enough to offset the area lost, if any (Elshafei, 2010).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Natural Convection Heat Transfer from the Rectangular Fins by Circular Perforations

Doori¹

2011

Int J Automot Mech Eng

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The importance of heat transfer by natural convection in enclosures can be found in many engineering applications, such as energy transfer in buildings, solar collectors, nuclear reactors and electronic packaging. An experimental study was conducted to investigate heat transfer by natural convection in a rectangular fin plate with circular perforations as heat sinks. The patterns of the perforations included 24 circular perforations (holes) for the first fin; the number of perforations increased by eight for each fin to 56 in the fifth fin. These perforations were distributed in 6-14 rows and four columns. Experiments were carried out in an experimental facility that was specifically designed and constructed for this purpose. It was observed that the temperature along the non-perforated fin dropped from 30 to 25°C, but the temperature drop for the perforated fins was from 30 to 23.7°C at low power (6 W). The drop in temperature between the fin base and the tip increased as the diameter of the perforations increased. The temperature drop at the highest power (220 W) was from 250 to 49°C for the nonperforated fin and from 250 to 36°C for the perforated fins. The heat transfer rate and the coefficient of heat transfer increased with an increased number of perforations.

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Optimum Design of Longitudinal Rectangular Fins and Cylindrical Spines with Variable Heat Transfer Coefficient

Cited by 42 publications

References 9 publications

Analysis of the 1D heat conduction problem for a single fin with temperature dependent heat transfer coefficient – Part II. Optimum characteristics of straight plate and cylindrical pin fins

Analysis of the 1D heat conduction problem for a single fin with temperature dependent heat transfer coefficient – Part II. Optimum characteristics of straight plate and cylindrical pin fins

Heat Transfer Characteristics of Grooved Fin Under Forced Convection

Enhancement of Natural Convection Heat Transfer from the Rectangular Fins by Circular Perforations

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