Effect of the fluid flow fragmentation on the hydrothermal performance enhancement of a serpentine mini-channel heat sink

Jaffal, Hayder Mohammad; Freegah, Basim; Hussain, Ammar A.; Hasan, Ala

doi:10.1016/j.csite.2021.100866

Cited by 20 publications

(14 citation statements)

References 22 publications

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“…Model B has the peak average Nusselt number of all three. Although flow fragmentation is the reason for increasing the Nusselt number, 4 the Model A average Nusselt number is a little bit lower than the traditional model. The increase in the number of Nusselt's will be reflected in the total performance of the heat sink as mentioned later in this paper.…”

Section: Resultsmentioning

confidence: 91%

“…Figure 8 depicts the pressure distribution in the heat sink channel for the three models. The traditional model has the maximum pressure decline among the three paradigms due to the long channel path compared to the two new suggested models (A and B) which they are approximately has half of the channel length of the traditional model the less the channel length the less the pressure drops due to the lower of the wall's friction losses 4 . Also as the number of exits increase the pressure drop decrease.…”

Section: Resultsmentioning

confidence: 92%

“…The traditional model has the maximum pressure decline among the three paradigms due to the long channel path compared to the two new suggested models (A and B) which they are approximately has half of the channel length of the traditional model the less the channel length the less the pressure drops due to the lower of the wall's friction losses. 4 Also as the number of exits increase the pressure drop decrease. The effect of lowering the pressure drop has a tremendous impact in increase the total hydrothermal performance of the heat sink.…”

Section: Solid and Fluid Field Analysismentioning

confidence: 99%

“…With the goal of improving the thermal performance of traditional mini‐channel heat sinks (MCHSs), a variety of MCHS structures and configurations have been developed. For instance, flow separation, 4 secondary microchannels between the heat sink fins, 3,5 the use of different inlet and outlet headers geometry, 6 zig‐zag microchannels, 7 multi‐stage flow having a low‐temperature upper layer and a high‐temperature lower layer, 8 and enhancement by structural design 9 …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] With the goal of improving the thermal performance of traditional mini-channel heat sinks (MCHSs), a variety of MCHS structures and configurations have been developed. For instance, flow separation, 4 secondary microchannels between the heat sink fins, 3,5 the use of different inlet and outlet headers geometry, 6 zig-zag microchannels, 7 multi-stage flow having a low-temperature upper layer and a hightemperature lower layer, 8 and enhancement by structural design. 9 Amalesh and Lakshmi Narasimhan 10 introduced seven models of MCHS with a variety of layouts to study their hydrothermal performance in cooling Li-ion battery during discharging by comparing them with the rectangular smooth channel.…”

Section: Introductionmentioning

confidence: 99%

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Influence of fluid inlet–outlet on hydrothermal evaluation for different serpentine mini‐channel heat sink configurations

Al‐Hasani

Freegah

2022

Heat Trans

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In the current study, numerical and experimental investigations of the hydrothermal performance of three configurations of a serpentine mini-channel heat sink (MCHS) were conducted. The outcome of one inlet with two outlets has been studied for two new models, namely, A and B, and compared with the traditional MCHS model. Model A has a central side single inlet, then the channel is directly split and the two outlets are on the other side. In Model B, the single side inlet passes to the other side, and then it splits and the outlets are on the same inlet side. The numerical solution is obtained by using the commercial ANSYS Fluent 2020 R2 under laminar flow conditions. The current study's numerical results were compared and validated with the experimental results of the traditional model. The results reveal that the total performance factor has considerably improved, according to the findings for the model (A and B). The average total hydrothermal performance for Model B is 1.48 and for Model A is 1.53 as compared to the traditional MCHS. However, the temperature distribution, maximum base temperature, Nusselt number, and thermal resistance of Model B are best as compared to Model A.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 92%

Section: Solid and Fluid Field Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of fluid inlet–outlet on hydrothermal evaluation for different serpentine mini‐channel heat sink configurations

Al‐Hasani

Freegah

2022

Heat Trans

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Performance analysis of minichannel heat sink with oblong cavities and diverse pin fin configurations

Mustafa,

Ghani

2024

Heat Trans

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Passive heat transfer techniques in minichannel heat sinks (MCHS) provide effective thermal management solutions for high heat flux applications. The current study introduces a three‐dimensional numerical analysis conducted to explore the flow and heat transfer characteristics of MCHS utilizing two passive techniques: incorporating pin fins with oblong‐shaped cavities. Four types of pin fin shapes were developed, including tear‐drop (MCOC‐TDPF), pyramidal (MCOC‐PPF), conical (MCOC‐CPF), and oval (MCOC‐OPF), respectively. The study is carried out under a laminar flow regime with Reynolds number ranging from 100 to 1000. The overall performance of these designs is assessed through a comparative analysis of traditional MCHS based on average Nusselt number, friction factor, and overall performance factor. Among these designs, MCOC‐CPF exhibited superior thermal performance compared to the other three configurations, with a maximum performance factor of 2.25 at a Reynolds number of 1000. Furthermore, the influence of conical pin fin taper ratio (β) on the thermal enhancement of MCOC‐CPF is also analyzed. Four values of conical pin fin taper ratio (β) have been considered, namely 1/6, 1/3, 1/2, and 2/3. The results revealed that β = 1/3 achieved an optimal overall performance of 2.39 at Reynolds number Re = 1000.

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Numerical investigation on a novel milli-sized heat sink equipped by twisted elliptical tubes

Mashaei,

Hosseinalipour

2024

Chemical Engineering and Processing - Process Intensification

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Effect of the fluid flow fragmentation on the hydrothermal performance enhancement of a serpentine mini-channel heat sink

Cited by 20 publications

References 22 publications

Influence of fluid inlet–outlet on hydrothermal evaluation for different serpentine mini‐channel heat sink configurations

Influence of fluid inlet–outlet on hydrothermal evaluation for different serpentine mini‐channel heat sink configurations

Performance analysis of minichannel heat sink with oblong cavities and diverse pin fin configurations

Numerical investigation on a novel milli-sized heat sink equipped by twisted elliptical tubes

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