Numerical investigation and optimization of a heat sink having hemispherical pin fins

Sahel, Djamel; Bellahcene, Lahcene; Yousfi, Aissa; Subasi, Abdussamet

doi:10.1016/j.icheatmasstransfer.2021.105133

Cited by 51 publications

(15 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Heat sinks, as well as peripherals such as jets and fans, are always improving to meet the demand for greater heat dissipation. A numerical analysis was conducted on the thermal performance of a hemispherical pin fin heat sink by adjusting fin height to channel height for various Reynolds numbers, with the finding that the heat sink's volume is reduced when compared to the reference case [1] . Saravanan et al investigated the heat transfer properties of a triangular pin fin heat sink using a variety of cooling fluids and nanoparticle volume concentrations [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Madhaiyan¹,

Kandasamy²,

Balasubramanian

et al. 2022

THERM SCI

View full text Add to dashboard Cite

The thermal performance of heat sinks with variable area straight fins with and without PCM is quantitatively explored in this article. The effects of diverse fin geometries (constant area straight fin, variable area straight fin, circular pin fin, hemispherical pin fin, and elliptical pin fin), varying Reynolds numbers, and fin densities on boosting electronics cooling performance were investigated. The goal of this research is to develop the best fin geometry for electronics cooling technologies. This research demonstrates that altering fin density can improve heat sink thermal performance while also reducing heat sink weight. The base temperature of the heat sink is found to be lower in variable area straight fins. In comparison to alternative configurations for heat transfer with PCM, the results show that variable area straight fin heat sinks are the most effective. The thermal resistance of the improved heat sink with variable fin density was reduced by 9%.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Madhaiyan¹,

Kandasamy²,

Balasubramanian

et al. 2022

THERM SCI

View full text Add to dashboard Cite

show abstract

“…Depending on the technological developments, heat generation in electronic devices has been increased dramatically over the years [1][2][3]. Moreover, these devices have been getting smaller day by day.…”

Section: Introductionmentioning

confidence: 99%

Mini-channel heat exchanger optimization using genetic algorithm and multiple-criteria decision making

Subasi

2022

Journal of Thermal Engineering

Self Cite

View full text Add to dashboard Cite

This study aims to apply an integrated optimization approach that combines Multi-objective Optimization (MOO) and Multiple-criteria Decision-making (MCDM) to optimize a multiport mini-channel having 2D sawtooth micro fins under laminar, transitional, and turbulent flow conditions. Water was considered as working fluid. The Reynolds number (Re), fin height (H f ), fin width (W f ), the number of micro-fins in each mini-channel (N), and the distance between the successive fins (S1) were selected as design and flow parameters and the Nusselt number (Nu) and the Poiseuille number (Po) were selected as objective functions. A Genetic Algorithm based MOO study was conducted using the correlations available in the literature aiming to find the optimum values of design and flow parameters that maximize Nu and minimize Po. Then, the VIsekriterijumska Optimizacija I Kompromisno Resenje (VIKOR) method was employed to help designers to select an optimum design among the Pareto optimal solution set which is the output of MOO. Finally, the optimization results obtained were compared with those obtained by the 1st Law of Thermodynamics based Performance Evaluation Criteria (PEC). The advantages and disadvantages of these methods were discussed in detail. It is revealed that the integrated approach is a more comprehensive and flexible approach that also covers the results of PEC.

show abstract

“…7,8 Heat sinks have a variety of applications in the field of electronics for the purpose of cooling the most advanced systems. 9 Due to their small size and delicate construction, micro heatsinks are capable to reduce temperature and reduce heat loss in a short period of time.…”

Section: Introductionmentioning

confidence: 99%

Effect of two different nano-particles (GO-MoS₂) and a new micro-sprayer model on power electronic module for thermal management

Gholinia

Javidan

Hosseinpour

2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

In this work, we have studied the performance of the cooling system with the presence of graphene oxide (GO) and molybdenum sulfide (MoS2) nanoparticles to reduce heat stress, increase the final efficiency, and maintain the reliability of Diode and IGBT electronic module. Beyond the geometric design of micro-sprays and dimensional changes, as well as the type of cooling fluid effect, the use of nanofluids for the purpose of thermal management of electronic systems will be an interesting and effective innovation. In the simulation parameters, the dimensional ratio of micro-sprays, the rate of cooling flows, and the volume fraction of nanoparticles were investigated. According to the results, considering the spray of the BSM-4N model and the input mass rate of 0.04 kg/s, by increasing the volume fraction of nanoparticles from 0.01 to 0.05, the heat transfer of nanofluid increases, thus leading to an increase in thermal efficiency. In this paper, the thermal effects of GO nanoparticle were significantly more favorable than those of MoS2 nanoparticle. In addition, it was found that by reducing the spray nozzle using installing the blade and simultaneous use of GO nanofluid with volume fraction of 0.05, the temperature inside the module is reduced below 323 K.

show abstract

Numerical investigation and optimization of a heat sink having hemispherical pin fins

Cited by 51 publications

References 49 publications

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Mini-channel heat exchanger optimization using genetic algorithm and multiple-criteria decision making

Effect of two different nano-particles (GO-MoS₂) and a new micro-sprayer model on power electronic module for thermal management

Contact Info

Product

Resources

About

Numerical investigation and optimization of a heat sink having hemispherical pin fins

Cited by 51 publications

References 49 publications

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

Mini-channel heat exchanger optimization using genetic algorithm and multiple-criteria decision making

Effect of two different nano-particles (GO-MoS2) and a new micro-sprayer model on power electronic module for thermal management

Contact Info

Product

Resources

About

Effect of two different nano-particles (GO-MoS₂) and a new micro-sprayer model on power electronic module for thermal management