CFD analysis of heat transfer enhancement in plate-fin heat sinks with fillet profile: Investigation of new designs

Freegah, Basim; Hussain, Ammar A.; Falih, Abeer Hashim; Towsyfyan, Hossein

doi:10.1016/j.tsep.2019.100458

Cited by 45 publications

(29 citation statements)

References 35 publications

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“…al. [12] work on numerical analysis by using Plate-fin of heat sinks (PFHS) without fillet profile using the parallel flow type. Across the z-axis, coolant flows into the heat sink.…”

Section: A Velocity Distribution In Y-x Planementioning

confidence: 99%

“…23. Comparison of the validation results of Basim Freegah and present studyComparison with[12] of diverse designs in impinging flow to examine the thermal performance of proposal designs when offer to impinging flow, the base temperature at m°= 0.0092 kg/s have been presented for models (a-b-c-d-e-f). All that models were Compared to the base temperature counter for models (A-B-C-D-E) for present study at Re (7000-9000-11000) correspond mass flow rate (0.005183kg/s-0.006597Kg/s-0.008011Kg/s) respectively.…”

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confidence: 99%

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The Behavior of Variable Zone for Concave Arcs -Fin of Heat Sink with Multi Air Jet Impingement

2021

CMR

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Novel array arcs-fin heat sink 7×2 with 6×2 multi air jet impingement are presented in this paper by using numerical simulation. Temperature distribution of jets diameter of 5mm and arcs-fin heat sink with variety shapes at constant radius of 45mm are evaluated. Reynolds number ranges from 7000 -11000. The study has been done at constant Z/d= 6 and constant heat flux =8333.33 W/m 2 . The best shapes of fins has an effective role in improving the rate of heat transfer .In this paper, the design concerned in arcs ships to construct fin geometry. Four concave arcs constricted the shape of fins heat sink for model A. This model has been changed to construct models (B-C-D-E) by reflect two concave arc from it to be convex arc. All five models at the same radius. The five configurations were comparative between each other and the best model comparative with flat plate heat sink. It is observed that model D of heat sink showed best temperature dissipation than the others. The results of this paper can help to select heat sink that meets a design's thermal, Power, packaging and cost requirements (specialized in arcs fins) with array of impingement jet, which is a popular used in cooling electronic devices.

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“…al. [12] work on numerical analysis by using Plate-fin of heat sinks (PFHS) without fillet profile using the parallel flow type. Across the z-axis, coolant flows into the heat sink.…”

Section: A Velocity Distribution In Y-x Planementioning

confidence: 99%

mentioning

confidence: 99%

The Behavior of Variable Zone for Concave Arcs -Fin of Heat Sink with Multi Air Jet Impingement

2021

CMR

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“…In these cooling systems, air is used as a coolant because it is easy to obtain and due to the simplicity, high reliability and low cost of the required equipment [ 4 ]. As the demand for cooling intensity increases, many heat sinks with diverse fin structures were reported, including flat-plate fin [ 5 , 6 ], pin fin [ 7 , 8 ], interrupted fin [ 9 ], slotted fins [ 10 ], etc. Many attempts in optimizing the structure on heat sinks, for instance, the width, height, distribution and shape of fins [ 3 , 5 , 8 , 11 , 12 ] have been made.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Microstructure on the Heat Dissipation Performance of Heat Sinks Used in Electronic Devices

You

Zhang

Tao³

et al. 2021

Micromachines

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Heat sinks are widely used in electronic devices with high heat flux. The design and build of microstructures on heat sinks has shown effectiveness in improving heat dissipation efficiency. In this paper, four kinds of treatment methods were used to make different microstructures on heat sink surfaces, and thermal radiation coating also applied onto the heat sink surfaces to improve thermal radiation. The surface roughness, thermal emissivity and heat dissipation performance with and without thermal radiation coating of the heat sinks were studied. The result shows that with an increase of surface roughness, the thermal emissivity can increase up to 2.5 times. With thermal radiation coating on a surface with microstructures, the heat dissipation was further improved because the heat conduction at the coating and heat sink interface was enhanced. Therefore, surface treatment can improve the heat dissipation performance of the heat sink significantly by enhancing the thermal convection, radiation and conduction.

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“…They reported that the Nu of crosscut sinusoidal wavy PFHS was higher than sinusoidal wavy PFHS by approximately 5.9-19.1%. Freegah et al (2020) numerically studied the performance of PFHSs with a fillet profile. The six types of PFHS with fillet profiles were simulated.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance investigation of a plate fin heat sink equipped with twisted tape and perforated twisted tape

Nilpueng

2021

JTST

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Thermal performance investigation of a plate fin heat sink equipped with twisted tape and perforated twisted tape Abstract The concept of heat transfer enhancement in a plate fin heat sink (PFHS) using twisted tape is presented. The airflow behavior in the flow channel and heat sink performance are investigated at the Reynolds numbers between 2000 and 5000. The twisted tape and perforated twisted tape with twist ratio between 2.5 and 3.5 are equipped between the fins of the PFHS. For perforated twisted tape, the holes are drilled along the twisted tape length with the ratio of perforation diameter to twisted taped width (d/W) between 0.2 and 0.6. The heat transfer coefficient and pressure drop are enhanced by decreasing the twist ratio and increasing the Reynolds number and the d/W ratio between 0.2 and 0.4. However, they are dropped when the d/W ratio higher than 0.4. The highest thermal performance factors of the plate fin heat sink equipped with twisted tape (PFHSTT) and the plate fin heat sink equipped with perforated twisted tape (PFHSPTT) are 1.28 and 1.33, respectively. The correlations of the Nusselt number and friction factor related to twist ratio and d/W ratio are generated and proposed for designing and selecting in the future.

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CFD analysis of heat transfer enhancement in plate-fin heat sinks with fillet profile: Investigation of new designs

Cited by 45 publications

References 35 publications

The Behavior of Variable Zone for Concave Arcs -Fin of Heat Sink with Multi Air Jet Impingement

The Behavior of Variable Zone for Concave Arcs -Fin of Heat Sink with Multi Air Jet Impingement

Effect of Surface Microstructure on the Heat Dissipation Performance of Heat Sinks Used in Electronic Devices

Thermal performance investigation of a plate fin heat sink equipped with twisted tape and perforated twisted tape

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