Impingement/effusion cooling of electronic components with cross-flow

Maghrabie, Hussein M.; Attalla, M.; Fawaz, H.E.; Khalil, Mohamed

doi:10.1016/j.applthermaleng.2019.01.106

Cited by 34 publications

(6 citation statements)

References 33 publications

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“…First, considering the ease of use, availability and simplicity of the design, the air-cooling technique has been one of the most commonly used in electronic cooling systems. Natural, mixed, or forced air convection is used to cool electronics in various industrial applications [8]- [10]. In the same way, the design parameters of electronic cooling systems, such as the geometry, fan work, and manufacture of the printed circuit board (PCB), are essential factors for selecting and designing a suitable cooling system.…”

Section: Introductionmentioning

confidence: 99%

Parametric Study of Electronic Cooling by Means of a Combination of Crossflow and an Impinging Jet

et al. 2022

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This paper reports a parametric study's experimental results based on the experiments' design. No works in the literature have investigated parametrically experimental effects on electronic component cooling by combining an impinging jet and a channel flow configuration on the cooling of electronic components. This study analyzed five parameters experimentally to enhance the cooling process using statistical techniques. Additionally, the optimal configuration determined for the conventional cooling method using only the channel flow was compared. Three parameters are associated with the geometric configuration (height of the electronic component h/H = 1/6, 1/3, 1/2, jet diameter D/H = 0.3, 0.4, 0.5 and jet-component eccentricity S/H = 0, 1/8, 1/4), and the other two are related to the fluid flow (the Reynolds number based on the channel height and mean velocity of the stream ReH = 3410, 4205, 5000 and the ratio between the jet and the channel mean velocities Uj/Um = 2.5, 3.75, 5). The results show that the main parameters are statistically significant relative to heat transfer, with ReH, Uj/Um and h/H displaying the most significant amplitude of variation in response and increasing the Nusselt number by approximately 60%. The surface response models have shown a satisfactory fit with the experimental data, allowing, in a preliminary way, the minimum mechanical energy loss requirement to be identified to maximize up to 160% of the heat transfer. Specifically, the heat transfer enhancement is more significant for components of considerable height than other components. Heat transfer enhancement occurs at low mechanical energy loss when the velocity ratio decreases at the minimum channel Reynolds number at the maximum jet diameter and jetcomponent eccentricity.INDEX TERMS, optimization, electronic cooling, impinging jet, cross flow, design of experiments, response surface model.

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Section: Introductionmentioning

confidence: 99%

Parametric Study of Electronic Cooling by Means of a Combination of Crossflow and an Impinging Jet

et al. 2022

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“…Its major application areas include cooling of electronic systems, turbine blades, solar systems, aerospace technology, hot metals, plastics sheets, drying of paper and fabric. The cooling of electronic systems has been studied by Maghrabie et al [5] and Wiriyasart and Naphon [6], and the turbine blades application was covered by Ali and Janajreh [7] and Fawzy et al [8] for jet impingement.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Augmentation through Different Jet Impingement Techniques: A State-of-the-Art Review

et al. 2021

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Jet impingement is considered to be an effective technique to enhance the heat transfer rate, and it finds many applications in the scientific and industrial horizons. The objective of this paper is to summarize heat transfer enhancement through different jet impingement methods and provide a platform for identifying the scope for future work. This study reviews various experimental and numerical studies of jet impingement methods for thermal-hydraulic improvement of heat transfer surfaces. The jet impingement methods considered in the present work include shapes of the target surface, the jet/nozzle–target surface distance, extended jet holes, nanofluids, and the use of phase change materials (PCMs). The present work also includes both single-jet and multiple-jet impingement studies for different industrial applications.

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“…11 Also, we found that various automobile manufacturers have utilized impinging jet cooling techniques to avoid piston overheating. 12 Over time, numerous empirical and numerical researches [13][14][15][16][17] studied the electronic cooling mechanism to describe the electronic components' fluid flow and thermal exchange behavior. The air was used as a working fluid.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigations of heat transfer around a hot block subject to a cross-flow and an extended jet hole using ternary hybrid nanofluids

Boudraa

Bessaïh

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In the last few years, modern heat transfer technologies significantly improved to provide more efficient systems in industries. One of those technologies is cooling electronic components in laminar flow using water nanofluids, which is interesting. This research used a ternary hybrid nanofluid with various nanoparticle forms to conduct a numerical investigation of three-dimensional heat transfer and fluid flow over a heated block exposed to a horizontal flow and an impinging jet. The effects of several variables such as the Reynolds number ratio [Formula: see text], volume fraction of nanoparticles [Formula: see text], length of extended jet hole [Formula: see text], and the influence of the inclination angle of the impinging jet inlet [Formula: see text] on the fluid flow and heat transfer were examined. Using the Ansys-Fluent 14.5 program and under laminar flow conditions, the finite-volume method was applied with the help of the SIMPLE algorithm to solve continuity, momentum, and energy equations. Several characteristics are assessed, including velocity streamline, isotherm contours, Nusselt number contours, the average Nusselt number ([Formula: see text]), the friction factor [Formula: see text], and drop pressure [Formula: see text]. The findings of the current analysis revealed that adding an impinging jet can boost the heat transfer rate up to [Formula: see text] better than a non-impingement jet. Also, a significant enhancement in the heat transfer rate was obtained when growing one of these parameters α, [Formula: see text], and E. Moreover, the ternary hybrid nanofluid with different nanoparticle forms significantly boosts the heat transfer rate compared to the traditional nanofluid. The maximum heat transfer is reached as the velocity of the impinging jet rises. Inclining the angle of the impinging jet inlet with [Formula: see text] toward the channel inlet boosted the rate of heat transfer up to [Formula: see text] compared to the perpendicular impinging jet [Formula: see text]. A strong consensus has been reached with the theoretical and experimental findings found in the literature.

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Impingement/effusion cooling of electronic components with cross-flow

Cited by 34 publications

References 33 publications

Parametric Study of Electronic Cooling by Means of a Combination of Crossflow and an Impinging Jet

Parametric Study of Electronic Cooling by Means of a Combination of Crossflow and an Impinging Jet

Heat Transfer Augmentation through Different Jet Impingement Techniques: A State-of-the-Art Review

Numerical investigations of heat transfer around a hot block subject to a cross-flow and an extended jet hole using ternary hybrid nanofluids

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