Forced Convection Heat Dissipation from Pin Fin Heat Sinks Modified by Rings and Circular Perforation

Acta Mechanica et Automatica, Год журнала: 2025, Номер 19(1), С. 117 - 125

Опубликована: Март 1, 2025

Abstract The primary factors to be managed in the design of heat sinks include enhancing dissipation rate, minimizing occupied volume and mass, eliminating lower transfer areas behind pin fins. This study focuses on numerically analysing impact combining perforation technique ring inserts turbulent fluid flow characteristics fin sinks. rings are positioned around cylindrical fins (CPFs). allows pass through (PFs) agitate stagnant zones PFs. These configurations denoted as case 0 (no perforation) 4. Results show that fitted with (case 4), an optimal configuration, demonstrates a 180.82% increase Nusselt number 154.54% decrease thermal resistance compared CPFs. Fortunately, this configuration contributes significant pressure drop by 62.19%. Furthermore, under same conditions, mass 4 reduced 77.5% 77.65%, respectively. Additionally, exhibits highest hydrothermal performance factor (η) 3.29 at Re = 8740.

Язык: Английский

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Optimization of nano-finned enclosure-shaped latent heat thermal energy storage units using CFD, RSM, and enhanced hill climbing algorithm

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 11, 2025

Язык: Английский

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Heat transfer augmentation in heat sink with fin-bars inserted in cooling channel

Results in Engineering, Год журнала: 2024, Номер 23, С. 102650 - 102650

Опубликована: Авг. 3, 2024

Adding obstacles and obstructing fluid flow in cooling channel to induce whirl velocity enhances thermal performance heat sinks. An analysis is presented of conjugate transfer a sink with transversely inserted bars the channel. The numerical study seeks maximise dimensionless conductance subject constant total volume. contrasts standard without bar inserts one, two, three, 4 bars. To improve surface area for transfer, extended surfaces are placed longitudinally at various points A high-density flux applied bottom wall coolant an inlet vin between 4.26 7.26 m/s pumped forced convective laminar condition eliminate heat. computational dynamic (CFD) code incorporated Ansys fluent used solve mathematical models. indicates that configuration featuring 3 roof exhibits highest global conductance, achieving 53 % increase over other configurations. All configurations up, down, left right, maintain pump power 3.5 W across Reynolds number range 857–1461. Bars positioned experience lowest outlet inner temperatures, whereas those floor exhibit temperatures. optimised design meets porosity limit 0.8.

Язык: Английский

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A novel approach for optimizing a photovoltaic thermal system combined with solar thermal collector: Integrating RSM, multi-objective bat algorithm and VIKOR decision maker

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2024, Номер 168, С. 105927 - 105927

Опубликована: Дек. 30, 2024

Язык: Английский

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Impact of splitter inserts combined with perforation technique and transversal fins on the performance of micro pin heat sinks

International Communications in Heat and Mass Transfer, Год журнала: 2024, Номер 159, С. 108094 - 108094

Опубликована: Сен. 24, 2024

Язык: Английский

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Computational and Experimental Studies on the Thermal Performance of Synthesized Composite Nanofluid in Rectangular Microchannel Heat Sink

Results in Engineering, Год журнала: 2024, Номер unknown, С. 103687 - 103687

Опубликована: Дек. 1, 2024

Язык: Английский

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AI-driven data fusion modeling for enhanced prediction of mixed-mode I/III fracture toughness

Results in Engineering, Год журнала: 2024, Номер 24, С. 103289 - 103289

Опубликована: Ноя. 7, 2024

Язык: Английский

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Optimization of Hydrothermal Performance in Industrial Heat Sinks with Innovative Perforated Pin Fin Designs: A Numerical Approach

Heliyon, Год журнала: 2024, Номер 11(1), С. e41496 - e41496

Опубликована: Дек. 26, 2024

Язык: Английский

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