Comparison of thermal performance between plate-fin and pin-fin heat sinks in natural convection

Joo, Younghwan; Kim, Sung Jin

doi:10.1016/j.ijheatmasstransfer.2014.12.023

Cited by 106 publications

(20 citation statements)

References 16 publications

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“…Data of the pin fin on tubes reduce the distributor region in the column. Joo and Kim 12 compared the heat transfer performance between pin and plate fin under free convection. For optimizing the thermal performance, total heat transfer rate and the dissipation of heat per unit mass were taken as objective functions.…”

Section: Experimental Studiesmentioning

confidence: 99%

Improvement of heat transfer through fins: A brief review of recent developments

Maji¹,

Choubey

2020

Heat Trans

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Fins or extended surfaces are generally used in heat exchangers to enhance heat transfer between the main surface and ambient fluid. Various types of simple-shaped fins, namely, rectangular, square, annular, cylindrical, and tapered, have been used with different geometrical combinations. To satisfy industrial demand, different trials have also been carried out for designing optimized fins. The optimization of fins can be performed either by enhancing heat dissipation at an exact fin weight or by diminishing the weight of the fin by precise heat dissipation. Recently a notable amount of work on some typical fins, like, porous fins and perforated fins, has also been carried out. This paper presents a brief review on heat transfer enhancement using fins of different types considering variable thermophysical and geometric parameters, which will also be useful for future use of geometrical modifications of extended surfaces, based on the cost and availability of space.analytical approach, computational approach, experimental approach, perforated fin, porous fin | INTRODUCTIONAdvanced technologies need high-performance heat transfer equipment. Techniques for enhancing the heat transfer rate are classified into two categories: active and passive methods. In the design point of view, active methods are complex as they require some extraneous power input for necessary flow adjustments and to improve the heat transfer rate and thus applications are limited. On the other hand, passive methods require geometrical or surface adjustments to the flow passage by incorporating additional devices. Additionally, by interrupting or varying the existing flow behavior (except for extended surfaces); higher heat transfer coefficients are promoted through this method, which is also followed by an increase in the corresponding pressure drop. The amount of conduction, convection, and radiation of an object shows the amount of heat it transfers. The heat transfer rate is enhanced by increasing the temperature difference between the object and the environment or by enhancing the coefficient of convective heat transfer or by maximizing the surface area of the body. In some cases, it is not appropriate or cost effective to alter the first two options. Introducing a fin to a body, however, expands the surface area and sometimes this is a cost-effective solution for heat transfer problems. Extended surfaces or fins are illustrations of passive methods that are generally used in different industrial applications for the enhancement of heat transfer between the primary surface (heat sink) and the surrounding fluid. Currently reducing the cost and size of fins is the key target of the fin industry. This demand is generally met by the high-thermal-conductivity and costly metals used to fabricate finned surfaces. Many efforts have been made to construct optimized fins. (a) By changing the size and shape of the solid fin: Instead of a longitudinal rectangular solid fin, if the geometry of fin design is changed, the performance parameters and heat tr...

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Section: Experimental Studiesmentioning

confidence: 99%

Improvement of heat transfer through fins: A brief review of recent developments

Maji¹,

Choubey

2020

Heat Trans

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“…They considered a conventional circular shape, a hydrofoil shape, a modified hydrofoil shape and a symmetric convex lens shape of a fin. Joo and Kim [10] presented an analytical comparison of the thermal performances of optimized plate-fin and optimized pin-fin heat sinks under fixed volume condition. McNeil et al [11] measured the heattransfer coefficient and pressure drop measurements for a heat sink comprising micro pin-fins.…”

Section: A Parametric Thermal Analysis Of Triangular Fins For Improvementioning

confidence: 99%

A parametric thermal analysis of triangular fins for improved heat transfer in forced convection

2018

SV-JME

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Thermal management systems in electronic devices require a reduction in size due to improve the overall performance of the system. The aim is to improve the heat transfer with reduction in weight of the system. Fins are the extended surfaces that ease the heat transfer process by increasing the wetted surface area. The thermal diffusion in a fin is always affected by parameters like the size, the shape, the material, the relative arrangement, orientation and position of the fins, the working fluid and its velocity, etc. Moreover, an extended surface may affect the pressure gradient in the flow domain. In this article, a three dimensional (3D) system of aluminium fin system has been numerically modelled. Simulations are done for conjugate heat transfer problem with fins of triangular shape. The thermal analysis is performed for various input parameters viz., arrangements, orientation and the number of fins. The effect of these parameters are analysed based on Nusselt number, convective heat transfer coefficient, coefficient of friction and coefficient of pressure.

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“…The obtained results showed that water was sufficient enough for CPU cooling. Younghwan et al [11] analytically compare the thermal performance of optimized plate-fin and pinfin heat sinks with a vertically oriented base plate. And developed a correlation of the heat transfer coefficient which as been validated by experimentally to optimize pin-fin heat sinks.…”

confidence: 99%

Computational Analysis of Heat sink or Extended Surface -“A Comprehensive Review”

2017

IJRTER

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Abstract-Heat sink and extended surface in the form of the fins module are the most commonly used various industrial applications such as Nuclear reactor, Mixing tank, solar air heater and even in electronic filed also such in the CPU as heat exchanger, the purpose of employing these is to enhance heat transfer by Forced and Natural heat transfer phenomenon. This paper provides a compressive review on the finned surface or heat sink which is subjected to thermal condition i.e. for Forced and Natural transfer phenomenon. Vast research has been carried out in the field of Fin and extended surface both in experimentation as well as computationally. Various optimization algorithms have also been reported by the researchers and are illustrated by various graphs and mathematical modeling by developing correlations.

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Comparison of thermal performance between plate-fin and pin-fin heat sinks in natural convection

Cited by 106 publications

References 16 publications

Improvement of heat transfer through fins: A brief review of recent developments

Improvement of heat transfer through fins: A brief review of recent developments

A parametric thermal analysis of triangular fins for improved heat transfer in forced convection

Computational Analysis of Heat sink or Extended Surface -“A Comprehensive Review”

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