Thermal improvement of the vertical plate-fin heat sink by variable fin thickness pattern and utilizing phase change material: A numerical investigation

Pourhemmati, Shayan; Hossainpour, Siamak

doi:10.1016/j.est.2022.106480

Cited by 6 publications

(3 citation statements)

References 34 publications

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“…Air is blown into the calculation area from the outside through the fan and flows out from the opening at both ends through the heat sink. The followings are basic assumptions of numerical simulation 39,40 : Thermal conduction, convective thermal transfer, and gravity are considered, but heat radiation is not considered. …”

Section: Numerical Simulation Modelsmentioning

confidence: 99%

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Design and performance analysis of hot side heat sink of thermoelectric cooler device based on simulation and experiment

Xu,

Li,

Zhao

et al. 2023

Energy Science & Engineering

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As for improving the heat diversion capacity of the hot side heat sink of the thermoelectric cooler (TEC), thereby improving the operational performance of the TEC, this study designed a type of double‐embedded flat heat pipe (EFHP) finned heat sink and compared with a standard aluminum (Al) heat sink. In experimental studies, TEC under two heat sinks were placed under different operating currents for heat transfer analysis and performance comparison. The experimental results demonstrated that the EFHP heat sink had better heat diversion ability, effectively improving the operational performance of TEC. When the TEC was input with a current of 6A, the thermal resistance of the double EFHP finned heat sink decreased by 19% compared to the Al heat sink; cooling capacity and coefficient of performance increased by 8.3% and 9.46%, respectively. Further, TEC's cold and hot surface temperatures decreased by 10.83% and 10.2%, respectively, and the heat uniformity of the heat sink improved. In addition, the CFD software Icepak was used to analyze the effects of double flat heat pipe spacing and length on the heat sink and TEC and the performance of two heat sinks and TEC under different heat dissipation conditions and obtained good agreement. This study can provide further guidance and assistance in designing the TEC cooling system.

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Section: Numerical Simulation Modelsmentioning

confidence: 99%

Section: Boundary Conditions and Basic Assumptionsmentioning

confidence: 99%

Design and performance analysis of hot side heat sink of thermoelectric cooler device based on simulation and experiment

Xu,

Li,

Zhao

et al. 2023

Energy Science & Engineering

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“…They employed cylindrical MEPCM modules within a commercial water tank to cool a 150-square-meter residential space. Pourhemmati et al [19] improved heat transfer efficiency and prevented boundary layer merging by adjusting the thickness of vertical finned heat sinks. COMSOL simulations indicated that increasing the number of fins could reduce thermal resistance by up to 45.5%.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Optimization of a Phase-Change Energy Storage Box in a Modular Mobile Thermal Energy Supply System

Kang,

Tan,

Zhou

et al. 2023

Sustainability

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Featuring phase-change energy storage, a mobile thermal energy supply system (M-TES) demonstrates remarkable waste heat transfer capabilities across various spatial scales and temporal durations, thereby effectively optimizing the localized energy distribution structure—a pivotal contribution to the attainment of objectives such as “carbon peak” and “carbon neutral”. To heighten the efficiency of energy transfer for mobile heating, this research introduces the innovative concept of modular storage and transportation. This concept is brought to life through the development of a meticulously designed modular mobile phase-change energy storage compartment system. Employing computational fluid dynamics (CFD), an in-depth exploration into the performance of the modular M-TES container and the adapted phase-change material (PCM) is conducted. By implementing fin arrangements on the inner wall of the heat storage module, a remarkable upsurge in the liquid phase-transition rate of the phase-change material is achieved in comparison to the design lacking fins—this improvement approximating around 30%. However, it is essential to acknowledge that the augmentation in heat transfer gradually recedes with the proliferation of fins or an escalation in their height. Moreover, the integration of expanded graphite into erythritol emerges as profoundly effective in amplifying the thermal conductivity of the PCM. Notably, with the addition of a 15.2% volume fraction of expanded graphite to erythritol, the duration of heat storage experiences a drastic reduction to nearly 10% of its original duration, thereby signifying a momentous advancement in thermal performance.

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A novel layout of the heat-sink base with a high cooling efficiency for polysilicon reduction furnace

Lv,

Duan,

et al. 2024

Applied Thermal Engineering

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Thermal improvement of the vertical plate-fin heat sink by variable fin thickness pattern and utilizing phase change material: A numerical investigation

Cited by 6 publications

References 34 publications

Design and performance analysis of hot side heat sink of thermoelectric cooler device based on simulation and experiment

Design and performance analysis of hot side heat sink of thermoelectric cooler device based on simulation and experiment

Numerical Simulation and Optimization of a Phase-Change Energy Storage Box in a Modular Mobile Thermal Energy Supply System

A novel layout of the heat-sink base with a high cooling efficiency for polysilicon reduction furnace

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