Experimental study and optimization of pin fin shapes in flow boiling of micro pin fin heat sinks

Wan, Wei; Deng, Daxiang; Huang, Qingsong; Zeng, Tao; Huang, Yue

doi:10.1016/j.applthermaleng.2016.11.182

Cited by 134 publications

(9 citation statements)

References 46 publications

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“…Numerous studies have been conducted to explore the convection heat transfer characteristics of two-phase flow boiling in micro pin-fin/channel heat sinks in recent years. Wei Wan et al [108] experimentally examined the effect of crosssection shape on flow boiling characteristics of micro pin-fin heat sinks. Four types of staggered micro pin-fins with different cross-section shapes, i.e., square, circular, diamond, and streamline, were tested in this study.…”

Section: Boiling Flowmentioning

confidence: 99%

Effective Parameters on Increasing Efficiency of Microscale Heat Sinks and Application of Liquid Cooling in Real Life

Alihosseini¹,

Bari²,

Mohammadi³

2021

Advances in Microfluidics and Nanofluids

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Over the past two decades, electronic technology and miniaturization of electronic devices continue to grow exponentially, and heat dissipation becomes a critical issue for electronic devices due to larger heat generation. So, the need to cool down electronic components has led to the development of multiple cooling methods and microscale heat sinks. This chapter reviewed recent advances in developing an efficient heat sink, including (1) geometry parameters, (2) flow parameters that affect the hydraulic–thermal performance of the heat sink. Also, the main goal of this chapter is to address the current gap between academic research and industry. Furthermore, commercialized electronic cooling devices for various applications are highlighted, and their operating functions are discussed, which has not been presented before.

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Section: Boiling Flowmentioning

confidence: 99%

Effective Parameters on Increasing Efficiency of Microscale Heat Sinks and Application of Liquid Cooling in Real Life

Alihosseini¹,

Bari²,

Mohammadi³

2021

Advances in Microfluidics and Nanofluids

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“…The results showed that the increase in distillate changes with ambient conditions. Wan et al 17 completed an experimental investigation, as well as optimization of a pin‐finned heat sink under flow boiling. It has been observed that square micropin fins showed a maximum rate of boiling heat transfer as compared with circular‐ and diamond‐shaped micropin fins.…”

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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“…Other aspects of microchannel heat sinks that have been studied are internal pins or fins and the orientation of the channel. While many studies have investigated various internal fins and pins [16][17][18], only a few orientations have been investigated. The change of the orientation of the microchannel can be described as rotated or inclined.…”

Section: Introductionmentioning

confidence: 99%

Adaptive mesh refinement method for the reduction of computational costs while simulating slug flow

Potgieter

Lombaard

Hannay

et al. 2021

International Communications in Heat and Mass Transfer

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Experimental study and optimization of pin fin shapes in flow boiling of micro pin fin heat sinks

Cited by 134 publications

References 46 publications

Effective Parameters on Increasing Efficiency of Microscale Heat Sinks and Application of Liquid Cooling in Real Life

Effective Parameters on Increasing Efficiency of Microscale Heat Sinks and Application of Liquid Cooling in Real Life

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

Adaptive mesh refinement method for the reduction of computational costs while simulating slug flow

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