A comparison of the heat transfer performance and pressure drop of nanofluid-cooled heat sinks with different miniature pin fin configurations

Duangthongsuk, Weerapun; Wongwises, Somchai

doi:10.1016/j.expthermflusci.2015.07.019

Cited by 57 publications

(16 citation statements)

References 28 publications

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“…The results display that the thermal performance enhances by about 3% to 9%, and, also, the pumping power increases when replacing SiO 2 ‐water by ZnO‐water with the same concentration. Duangthongsuk and Wongwises investigated the effect of the shapes of array pin geometry with nanofluids on the pressure drop and heat transfer characteristics. The miniature circular pin heat sink provided enhancement in the thermal performance by approximately 6% to 9% more than that of the miniature square pin heat sink.…”

Section: Introductionmentioning

confidence: 99%

The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids

Fadhil

Khalil

Al‐damook

2019

Heat Trans. Asian Res.

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Ever since the rapid increase in both the demand for the miniature electronic devices and their applications, heat dissipation in the electronic components has been a serious issue. A miniature plate‐pin heat sink model with square, circular, and elliptic pins is considered to enhance the hydrothermal performance of this kind of compact heat sink (CHS). Water and 3% of SiO2‐water nanofluids of volume fraction were used with different Reynolds number ranges (100‐1000). The findings show that the base temperature of heat sink reduces while the Nusselt number enhances by using nanofluids and increasing Reynolds number. The lowest value of the base temperature is nearly 25% for the square pins and circular pins CHSs compared with a plate–fin heat sink at 3% of nanofluids. Furthermore, the highest value of the Nusselt number is about 98% at 3% SiO2 for circular pin CHSs compared with the plate–fin heat sink. However, the pressure drop of CHSs is higher than that of plate–fin heat sink. Moreover, the most significant hydrothermal performance value is about 1.44 for water and around 1.51 for SiO2 as using the CHS with circular and elliptic pins depends on the Reynolds number. Thus, applying CHSs with nanofluids instead of the traditional heat sinks might produce a substantial enhancement in the hydrothermal performance of heat sinks.

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Section: Introductionmentioning

confidence: 99%

The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids

Fadhil

Khalil

Al‐damook

2019

Heat Trans. Asian Res.

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“…There is a rapidly growing number of studies on this subject. Daungthongsuk and Wongwises [4][5][6][7] summarized and explored the published articles with respect to the benefits and use of nanofluid-cooled heat sinks. However, updated studies with respect to the combination of the nanofluid and microchannel heat sink (nanofluid-cooled microchannel heat sink, NCMCHS) are listed in the following text.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on the heat transfer and pressure drop characteristics of nanofluid flowing in microchannel heat sink with multiple zigzag flow channel structures

Duangthongsuk

Wongwises

2017

Experimental Thermal and Fluid Science

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“…In addition, the thermal performance developed nearly 3 to 9% and pumping power increased when SiO 2 –water was used instead of ZnO–water for the same nanoparticle concentration. The effect of mini pin geometry using SiO 2 –deionized water nanofluids (0.2%‐0.6%) on the pressure drop as well as heat transfer features was studied by Duangthongsuk and Wongwises . The test included two pin geometries: square and circular cross‐section.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional computational comparison of mini pinned heat sinks using different nanofluids: Part one—the hydraulic‐thermal characteristics

Al‐damook

Alfellag

Khalil

2019

Heat Trans. Asian Res.

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The hydraulic-thermal characteristics of 3D pinned heat sink designs have been numerically compared as the first part of a three-part investigation. Five different pin geometries (circular, square, triangular, strip, and elliptic pins) and an unpinned heat sink with three types of nanofluids (Al 2 O 3 -H 2 O, SiO 2 -H 2 O, and CuO-H 2 O) are considered for laminar forced convection. The range of Reynolds number is from 100 to 1000, and volume fractions vary between 0% and 5%.The finite volume method is employed to solve the Navier-Stokes and energy equations by employing a SIMPLE algorithm for a computational solution. Three parameters are presented-the Nusselt number, the bottom temperature, and the hydrothermal performance of the heat sink with pressure drop data. The findings indicated that the overall hydrothermal performance of elliptic-pinned (EP) heat sinks produces the most substantial value of 3.10 for pure water. For different nanofluids, the SiO 2 -water nanofluids with EPs have the most significant hydrothermal performance. Also, this factor is enhanced with an increase in nanofluid concentration up to nearly 3.34 for 5% of SiO 2 -water. Consequently, applying the elliptic-pinned heat sinks is recommended with pure water for considering an increase in the pressure drop, with 5% of SiO 2 -water nanofluids, regardless of an enlargement of pressure drop for heat-dissipation applications. K E Y W O R D Scooling rate enhancements, hydrothermal performance augmentation, pinned heat sinks, using different nanofluids 1 | INTRODUCTION Many cooling techniques have been suggested for improving the hydraulic-thermal performance of macro, mini, and micro heat sinks to overcome the main challenge of electronic cooling systems with a high density of heat generation. The improvement in the hydraulic thermal design of heat sink leads to a reduction in its size and weight and enhances the cooling rate; thereby, avoiding failure and increasing the reliability and speed performance of engineering devices. 1 Therefore, pinned heat sinks are one of the most common techniques used to improve the thermo-hydraulic performance of heat sinks because heat sinks with pins are applied in the liquid and gas processes of many engineering applications. Pinned heat sinks are proposed as a cooling technique with water and nanofluids to enhance the cooling performance of heat sinks. 1-3 Thus, many researchers have investigated different kinds of heat sinks with various fluid types to overcome the issue of rapidly developing heat generated in electronic systems and their applications for protecting these systems from damage.Many numerical studies on heat sinks with pins using liquid cooling have been performed. For example, Ambreen et al 4 reported the hydrothermal characteristics of circular micro-pinned heat sinks with Al 2 O 3 -H 2 O nanofluids (0.25%-1%) using the Lagrangian-Eulerian approach. The results showed that the hydrothermal performance was enhanced upon using nanofluids with an increase in volume fraction instead of pure wa...

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A comparison of the heat transfer performance and pressure drop of nanofluid-cooled heat sinks with different miniature pin fin configurations

Cited by 57 publications

References 28 publications

The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids

The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids

An experimental investigation on the heat transfer and pressure drop characteristics of nanofluid flowing in microchannel heat sink with multiple zigzag flow channel structures

Three‐dimensional computational comparison of mini pinned heat sinks using different nanofluids: Part one—the hydraulic‐thermal characteristics

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A comparison of the heat transfer performance and pressure drop of nanofluid-cooled heat sinks with different miniature pin fin configurations

Cited by 57 publications

References 28 publications

The hydraulic‐thermal performance of miniature compact heat sinks using SiO2‐water nanofluids

The hydraulic‐thermal performance of miniature compact heat sinks using SiO2‐water nanofluids

An experimental investigation on the heat transfer and pressure drop characteristics of nanofluid flowing in microchannel heat sink with multiple zigzag flow channel structures

Three‐dimensional computational comparison of mini pinned heat sinks using different nanofluids: Part one—the hydraulic‐thermal characteristics

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The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids

The hydraulic‐thermal performance of miniature compact heat sinks using SiO₂‐water nanofluids