Mathematical modeling and multi-objective optimization on the rectangular micro-channel heat sink

Shang, Xue-shuo; Li, Qing-wen; Chen, Qun; Li, Zi-rui; Shao, Wei; Cui, Zheng

doi:10.1016/j.ijthermalsci.2022.107926

Cited by 18 publications

(7 citation statements)

References 33 publications

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“…However, it should be noted that the heat transfer characteristic of RHCS is more complex, due to the fact that it combines the heat dissipation characteristics of both RCS and RHS. To obtain accurate heat transfer characteristics, a theoretical model of heat transfer coefficients is constructed by using the response surface theory [12,13], which is a statistical method used to solve multivariate problems.…”

Section: Parameter Optimization Design Of the Honeycomb Cellmentioning

confidence: 99%

“…Furthermore, accurate models based on finite element analysis and genetic algorithms have been proposed to achieve a more accurate thermal design of the ribbed heat sink [12]. Meanwhile, a multi-parameter constrained optimization procedure combining experimental design, a response surface model, genetic algorithm, hybrid parameter optimization and computational fluid dynamics was developed to complete the optimized design of the heat sink structural parameters, and the optimized heat sink thermal performance was significantly improved [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Objective Optimization of a Novel Ribbed Honeycomb Heat Sink for an Electro-Hydrostatic Actuator

Li,

Han,

et al. 2023

Processes

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The electro-hydrostatic actuator (EHA) is a new type of power-by-wire (PBW) actuation system, which is utilized to realize a more electric aircraft. However, EHA suffers from serious thermal problems, due to its high integration and high power density. Therefore, a reasonable heat dissipation structure is an essential method for solving this problem. In this paper, a novel ribbed honeycomb heat sink (RHCS) developed by combining a ribbed heat sink (RHS) with a honeycomb heat sink (HCS) is proposed. Moreover, the optimization of heat sink parameters was achieved by using a multi-objective particle swarm optimization algorithm (MOPSO). Initially, the thermal resistance and mass models of the HCS were constructed, based on which the optimal structural parameters of the honeycomb cell were obtained. In addition, the thermal resistance model of RHCS was constructed using the response surface method, and parameters such as rib spacing, height and width were obtained based on MOPSO. Finally, the heat dissipation capability of RHCS was verified using both a simulation and experimental methods, and the results show that the heat dissipation capability of RHCS is about 15%∼20% higher than that of RHS and 7.4%∼10.3% higher than that of HCS. The configuration and design method of RHCS proposed in this paper provide a solution for the thermal design of EHA.

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Section: Parameter Optimization Design Of the Honeycomb Cellmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization of a Novel Ribbed Honeycomb Heat Sink for an Electro-Hydrostatic Actuator

Li,

Han,

et al. 2023

Processes

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“…Nanofluids are a highly efficient alternative to conventional coolants used for such applications [20]. They are particle suspensions derived by introducing nanoparticles inside base fluids to improve the heat transfer coefficient of cooling fluids [21].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Electric Vehicle Battery Thermal Management using Nanofluid of Varying Concentrations

Ammar,

Ahmad,

Naqvi

et al. 2024

Proceedings of the 9th World Congress on Momentum, Heat and Mass Transfer

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Due to temperature sensitivity of lithium-ion batteries, thermal management is required for their optimal performance in electric vehicles. Nanofluids can be an effective alternative in place of conventional liquid coolants. Graphene oxide nanoparticles inside deionized water as base fluid were used to test the convective heat transfer rate and pressure drop across an electric vehicle battery cooling module. The flow rates across the module were varied for flows within a range of 3000 to 5000 Reynolds number. It was found that the cooling rates are sensitive to Reynolds number, type of coolant and nanoparticle fraction inside the base fluid. The findings were validated against data available in literature and the proposed cooling module was studied for overall thermal performance. It was found that for high Reynolds number of 5000, a superior Thermal Performance Factor (TPF) of 1.1 was obtained and the increase in thermal performance was not linearly correlated to the increase in Reynolds Number.

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“…Nanofluids are an effective alternative to the single-phase fluids commonly used in cooling applications [34]. Nanofluids are a form of particle suspensions formed to disrupt the boundary layer formation, which improves the heat transfer coefficient and hence the overall performance of the coolant [35].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Passive Mixing and Convective Heat Transfer Enhancement for Nanofluid Flow across Corrugated Base Microchannels

Naqvi,

Uddin,

Khan

2023

Energies

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Vortex generators and pin fins are conventionally used to deliver fluid mixing and improved convective heat transfer. The increased pressure loss following a fractional increase in heat transfer, as well as the complex manufacturing design, leave room for improvement. The present work proposes a novel diverging–converging base corrugation model coupled with vortex generation using simple geometrical modifications across rectangular microchannels to ensure a superior performance. The Nusselt number, friction factor, and flow phenomenon were numerically studied across a Reynolds number range of 50–1000. The optimum cross-section of the microchannel-generating vortices was determined after thorough study, and base corrugation was further added to improve heat transfer. For the vortex–corrugation modeling, the heat transfer enhancement was verified in two optimized cases: (1) curved corrugated model, (2) interacting corrugated model. In the first case, an optimized curve generating Dean vortices was coupled with base corrugation. An overall increase in the Nusselt number of up to 32.69% and the thermal performance of “1.285 TPF” were observed at a high Reynolds number. The interacting channels with connecting bridges of varying width were found to generate vortices in the counter-flow configuration. The thermal performance of “1.25 TPF” was almost identical to the curved corrugated model; however, a major decrease in pressure, with a loss of 26.88%, was observed for this configuration.

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Mathematical modeling and multi-objective optimization on the rectangular micro-channel heat sink

Cited by 18 publications

References 33 publications

Multi-Objective Optimization of a Novel Ribbed Honeycomb Heat Sink for an Electro-Hydrostatic Actuator

Multi-Objective Optimization of a Novel Ribbed Honeycomb Heat Sink for an Electro-Hydrostatic Actuator

Numerical Analysis of Electric Vehicle Battery Thermal Management using Nanofluid of Varying Concentrations

Passive Mixing and Convective Heat Transfer Enhancement for Nanofluid Flow across Corrugated Base Microchannels

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