Natural convective performance of perforated heat sinks with circular pin fins

Wen, Mao-Yu; Yeh, Cheng-Hsiung

doi:10.1007/s00231-015-1504-8

Cited by 14 publications

(2 citation statements)

References 23 publications

(31 reference statements)

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“…The height of pin‐fin plays an important role in both pressure difference and heat removal. There are a lot of researches of pin height influence in natural convective heatsink [18, 19]; however, little attention was paid in the microchannel fluid heatsink. Abdoli et al [20] contrast the heat removal capacity with the change of pin height from 200 to 400 µm.…”

Section: Model Design and Optimisationmentioning

confidence: 99%

Heat removal capacity enhanced micropin array heatsink with optimised pin height and inlet–outlet positions

Yang

Ding

Wang

et al. 2016

Micro & Nano Letters

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A micropin array heatsink with high heat removal capacity for its optimised pin height and inlet-outlet positions is presented. Computational fluid dynamics simulation indicates pin height has a big impact on the pressure difference and heat removal capacity. A decrease of 2.67°C of the maximum temperature was achieved when pin height increased from 200 to 500 µm. Meanwhile with the proper pin height, the different positions of inlet and outlet that the maximum temperature decreases 13.89°C, the best design compared with the worst design among 63 samples under the same working condition. The two typical samples were fabricated and tested through micromachining technology and an infrared imaging testing system. Experiment result preferably matches with the simulation result of the same variation trend of 5.8°C. The positions of inlet and outlet were proved to play an important role in enhancing the heat removal capacity of the micropin array heatsink.

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Section: Model Design and Optimisationmentioning

confidence: 99%

Heat removal capacity enhanced micropin array heatsink with optimised pin height and inlet–outlet positions

Yang

Ding

Wang

et al. 2016

Micro & Nano Letters

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“…If the machine can be cooled more efficiently, the amount of copper used can decrease and therefore the price of material needed for the machine may also reduce, and the machine will be more cost effective. For this reason, one way to meet these challenges and trade-offs is through the engineering of fin geometry and fin density of heat transfer devices such as heat exchangers and cold plates (Wen and Yeh, 2015;Pal and Majumder, 2016). The fins are therefore presented everywhere in engineering and have a major role in the refrigeration process, air conditioning, and aerospace applications (Kraus et al, 2001;Boonloi and Jedasadaratanachai, 2014).…”

Section: Introductionmentioning

confidence: 99%

Thermo-Geometric Parameter Effects on Convectively Cooled Inhomogeneous Rectangular Fin

Kamdem¹,

Lemoubou²,

Bogning³

2017

Frontiers in Heat and Mass Transfer

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Numerical experiments involving heat transfer were performed to analyze the influence of both fin thermo-geometric parameter and cooling boundary conditions on the temperature distribution and the efficiency of convective cooled inhomogeneous rectangular fin. The inhomogeneity of the fin is due to both temperature dependent thermal conductivity and convection heat coefficients. The analysis was facilitated by the use of the differential transformation method, which can solve nonlinear differential equation. A specific application is first made for temperature/efficiency homogeneous fin predictions and the results are in excellent agreement with standard exact results. Predictions of inhomogeneous fin temperature and efficiency for three different convection conditions are then performed. The thermo-geometric parameter range for numerical experiments was from 0.0 to 1.0. The results reveal that the thermo-geometric parameter plays a great role in the amount of fin temperature distribution and efficiency. The temperature distribution within the fin is low for high thermo-geometric parameter value and increases rapidly for large values of this parameter. For geometric parameter greater than 0.3, the use of rectangular fin will be optimal for heated or cooled process having heat transfer coefficient increased with increased temperature as generally accounted in laminar or turbulent natural convection. On the other hand, the efficiency of the inhomogeneous fin does not depend on cooling conditions when the thermo-geometric parameter is less than 0.3.

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Response Surface Optimization of Heat Sink Used in Electronic Cooling Applications

Agarwal

Letsatsi

Pitso

2022

Lecture Notes in Mechanical Engineering

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Natural convective performance of perforated heat sinks with circular pin fins

Cited by 14 publications

References 23 publications

Heat removal capacity enhanced micropin array heatsink with optimised pin height and inlet–outlet positions

Heat removal capacity enhanced micropin array heatsink with optimised pin height and inlet–outlet positions

Thermo-Geometric Parameter Effects on Convectively Cooled Inhomogeneous Rectangular Fin

Response Surface Optimization of Heat Sink Used in Electronic Cooling Applications

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