Heat transfer and thermal performance analysis of a surface with hollow rectangular fins

This study examines the heat transfer enhancement from a horizontal rectangular fin embedded with triangular perforations (their bases parallel and toward the fin tip) under natural convection. The fin's heat dissipation rate is compared to that of an equivalent solid one. The parameters considered are geometrical dimensions and thermal properties of the fin and the perforations. The gain in the heat transfer enhancement and the fin weight reduction due to the perforations are considered. The study shows that the heat dissipation from the perforated fin for a certain range of triangular perforation dimensions and spaces between perforations result in improvement in the heat transfer over the equivalent solid fin. The heat transfer enhancement of the perforated fin increases as the fin thermal conductivity and its thickness are increased.

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“…In the forced convection, there are many studies dealing with the enhancement of heat transfer as in Refs. [11][12]. In Ref.…”

Section: Introductionmentioning

confidence: 98%

“…In Ref. [11], an experimental study was conducted to investigate the heat transfer and friction loss characteristics of a horizontal rectangular channel with hollow rectangular profile fins attached over one of its heated surfaces. The study showed a significant enhancement of the heat transfer due to the hollow fins.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of natural convection heat transfer from a fin by triangular perforation of bases parallel and toward its tip

AlEssa

Al‐Widyan

2008

Appl. Math. Mech.-Engl. Ed.

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“…Akyol and Bilen [15] developed an experimental apparatus to study heat transfer and friction in a horizontal rectangular channel, with attachments of hollow rectangular profile fins over a heated surface. Temperatures were measured by thermocouples installed along the test section centerline.…”

Section: Introductionmentioning

confidence: 99%

Experimental correlation of forced convection heat transfer from a NACA airfoil

Wang

Bibeau

Naterer

2007

Experimental Thermal and Fluid Science

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“…They obtained regression equations for calculating the average Nusselt number, heat transfer rate and effectiveness for a fin array. Akyol et al [13] investigated experimentally the heat transfer and friction loss characteristics in a horizontal rectangular channel with hollow rectangular fins over one of its heated surface; they determined correlation equations for Nusselt number, friction factor and thermal performances for straight channel with fin and without fins. Xiaoling et al [14] experimentally investigated the thermal performance of two types of heat sinks and concluded that plate pin fin heat lower thermal resistance and more pressure drop than plate fin heat sinks.…”

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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Heat transfer and thermal performance analysis of a surface with hollow rectangular fins

Cited by 40 publications

References 10 publications

Enhancement of natural convection heat transfer from a fin by triangular perforation of bases parallel and toward its tip

Enhancement of natural convection heat transfer from a fin by triangular perforation of bases parallel and toward its tip

Experimental correlation of forced convection heat transfer from a NACA airfoil

Performance Evaluation of Rectangular Fins with Holes in Free Convection

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