Thermal performance improvement based on the hybrid design of a heat sink

Jasim, Hisham H.

doi:10.1016/j.jestch.2019.10.007

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…Hal ini menunjukkan terjadinya peningkatan perpindahan panas dari heat sink ke lingkungan. Besaran lain untuk menunjukkan laju perpindahan panas dapat dinyatakan dalam bilangan tanpa dimensi yaitu bilangan Nusselt [13][14][15] . Pada penelitian sebelumnya meneliti transfer panas secara konveksi alami pada heat sink bentuk vertical plate.…”

Section: Pendahuluanunclassified

Pengaruh Geometri Dan Penambahan Jumlah Sirip Terhadap Distribusi Temperatur Heat Sink Sebagai Alternatif Pendinginan Pada Piranti Elektronik

Subekti,

Wahyudi,

Gapsari

2023

JRM

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This study aims to determine the effect of the geometry shape of the copper material heat sink fins on the surface temperature distribution of the heat sink. The material used in this research is pure copper, the shape of the heat sink fins is made rippled with the addition of the number of fins 5, 6, and 7 and the input temperature is varied from 40 C to 80 C with airflow variations from 0.2 m/s to 1 m/s. The first step is to create a heat sink design with Autodesk Inventor. Then the plan is simulated with Autodesk CFD to solve the continuity, momentum, turbulence, and energy equations. Based on the method that has been carried out, it is found that the addition of variations in the number of fins affects the decrease in surface temperature. The highest temperature drop on fin 5 ripples is 24.1 C. The heat energy transfer rate increased by 0.4657 W. The convection heat transfer coefficient increased by 3.47 W/m²C. Nusselt number shows an increase of 271. Fin performance has increased efficiency by 63.4 %, and effectiveness by 1.61. The results of this study are expected to provide practical alternatives that can be widely adopted on a heatsink plate that is very promising for future thermal developments.

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Section: Pendahuluanunclassified

Pengaruh Geometri Dan Penambahan Jumlah Sirip Terhadap Distribusi Temperatur Heat Sink Sebagai Alternatif Pendinginan Pada Piranti Elektronik

Subekti,

Wahyudi,

Gapsari

2023

JRM

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“…The convective heat transfer coefficient (h) is the ratio between the heat flux and the temperature difference of the HX wall and can be computed as below [33]. h =ṁ c p t HX A hx (1) The HX temperature coefficient can be calculated as below.…”

Section: Convective Heat Transfer Coefficientmentioning

confidence: 99%

“…Heat exchange has high industrial importance from environmental perspectives, in which it is applied to different industrial products such as electronic devices, gas turbines, and small-sized engines. These products need to dissipate heat in order to operate successfully, and a significant temperature increase may lead to high thermal stresses and/or affect the product's reliability and overall performance [1]. Therefore, it is crucial to provide sufficient cooling for such products.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Comparison of the Thermal Performance of Additively and Conventionally Manufactured Heat Exchangers

Vafadar

Guzzomi

Hayward

2021

Metals

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Air heat exchangers (HXs) are applicable in many industrial sectors because they offer a simple, reliable, and cost-effective cooling system. Additive manufacturing (AM) systems have significant potential in the construction of high-efficiency, lightweight HXs; however, HXs still mainly rely on conventional manufacturing (CM) systems such as milling, and brazing. This is due to the fact that little is known regarding the effects of AM on the performance of AM fabricated HXs. In this research, three air HXs comprising of a single fin fabricated from stainless steel 316 L using AM and CM methods—i.e., the HXs were fabricated by both direct metal printing and milling. To evaluate the fabricated HXs, microstructure images of the HXs were investigated, and the surface roughness of the samples was measured. Furthermore, an experimental test rig was designed and manufactured to conduct the experimental studies, and the thermal performance was investigated using four characteristics: heat transfer coefficient, Nusselt number, thermal fluid dynamic performance, and friction factor. The results showed that the manufacturing method has a considerable effect on the HX thermal performance. Furthermore, the surface roughness and distribution, and quantity of internal voids, which might be created during and after the printing process, affect the performance of HXs.

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Phase change material aided thermal scheming of high power LED: Effect of PCM with varying pitch of hexagonal fins

Ramesh

Praveen

Pillai

et al. 2021

Materials Research Innovations

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Thermal performance improvement based on the hybrid design of a heat sink

Cited by 3 publications

References 19 publications

Pengaruh Geometri Dan Penambahan Jumlah Sirip Terhadap Distribusi Temperatur Heat Sink Sebagai Alternatif Pendinginan Pada Piranti Elektronik

Pengaruh Geometri Dan Penambahan Jumlah Sirip Terhadap Distribusi Temperatur Heat Sink Sebagai Alternatif Pendinginan Pada Piranti Elektronik

Experimental Investigation and Comparison of the Thermal Performance of Additively and Conventionally Manufactured Heat Exchangers

Phase change material aided thermal scheming of high power LED: Effect of PCM with varying pitch of hexagonal fins

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