Architected lattices embedded with phase change materials for thermal management of high-power electronics: A numerical study

Qureshi, Zahid Ahmed; Al-Omari, Salah Addin Burhan; Elnajjar, Emad; Al‐Ketan, Oraib; Al‐Rub, Rashid K. Abu

doi:10.1016/j.applthermaleng.2022.119420

Cited by 21 publications

(8 citation statements)

References 38 publications

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“…The Boussinesq approach is used to model the melting of the PCM [26][27]. In addition, the continuity, momentum and conservation of energy equations for PCM are expressed as [28][29]:…”

Section: Governing Equationsmentioning

confidence: 99%

Numerical Analysis of The Multilayer Structures Melting with Different Hole Network with Phase Change Material

Baki Sezgin,

Gökaslan,

Uçkan

2023

Enenstrg

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Phase change materials (PCM) are used with different geometries to increase thermal performance. The thermal performance of the geometries on phase change materials have been investigated. For thermal energy storage systems (TES), porous structures are widely used to increase the thermal performance of the PCM. In addition, geometric parameters affect heat transfer, flow and melting solidification. In this work, the thermal performance of multilayer structures with different surface geometries and the control of the melt fraction of the PCM was investigated in terms of energy efficiency. The results were obtained by modeling the studies in the Computational Fluid Dynamics (CFD) program. The physical model was obtained by creating a multi-layer porous structure with different surface geometries in each layer thanks to the additive system. Modeling was carried out for natural convection depending on time. Paraffin was used as the PCM. The melting temperature of the paraffin used is 41 °C and the latent heat of fusion is 165 kJ/kg. In the present work, the distribution of melting isotherms gives more homogeneous results for the selected geometry. The results of PCM multilayer structure and other geometries were compared under the same conditions and it was seen that the multilayer structure improved the thermal performance. All melting graphs range from 0-1 (0: solid, 1: liquid). The results obtained for the selected geometry show that the melting value is between 0.8-0.9. In addition, the proposed physical model is a subject that can be encountered in engineering applications, thermal design engineering. In this respect, it is thought that the results obtained from the study, especially in the field of energy storage, will fill an important gap.

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“…The Boussinesq approach is used to model the melting of the PCM [26][27]. In addition, the continuity, momentum and conservation of energy equations for PCM are expressed as [28][29]:…”

Section: Governing Equationsmentioning

confidence: 99%

Numerical Analysis of The Multilayer Structures Melting with Different Hole Network with Phase Change Material

Baki Sezgin,

Gökaslan,

Uçkan

2023

Enenstrg

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“…Through optimal design, it was possible to reduce maximum thermal stress by more than 21.2%. Paper [6][7][8] optimizes the structure and materials of the heat sink to improve the heat dissipation capacity of the packaging system. With the development of chemical technology and material technology, new thermal switches [9] and thermal transistors [10] become the next generation of future thermal management technologies.…”

Section: Introductionmentioning

confidence: 99%

Heat Dissipation Capability of Stagger-Stacked Double Data Rate Module

Sun,

Cang,

Zhang

et al. 2024

Electronics

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In this study, we introduce a stagger-stacked DDR module that comprises one IPD chip (top die) along with four memory chips initially. The steady-state thermal characteristics of this configuration were empirically assessed using a dedicated thermal test vehicle. The purpose of this research is to investigate the module’s junction temperature by adjusting four factors: the thermal conductivity of the molding plastic, chip thickness, chip misalignment length, and the thermal conductivity of the adhesive film. We observed that the junction temperature decreases with an increase in the chip staggered length. An improved orthogonal experimental method was utilized to achieve the optimal design of the module. The optimal junction temperature has decreased by 4.74% compared to the initial value. Additionally, three alternative packaging technologies—cantilever, pyramid, and a combination of cantilever and pyramid—were evaluated for the benchmarking of the thermal performance. Ultimately, the stagger-stacked package demonstrated a reduction in the junction temperature by 3.62%, 7.95%, and 5.63%, respectively, when compared to the three traditional stacked packages.

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“…Compared with strut-based structures, TPMS structures have shown better mechanical performance, such as high strength, high load-bearing capacity, high energy absorption capacity, and structural stability [ 17 ]. Furthermore, TPMS structures have a higher surface-to-volume ratio, enabling them to be used in medical fields (e.g., scaffolds [ 18 , 19 ]) and heat management [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Mechanical Properties for Carbon fiber/PLA Composite Lattice Structures Using Mathematical and ANFIS Models

et al. 2023

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This study investigates the influence of design, relative density (RD), and carbon fiber (CF) incorporation parameters on mechanical characteristics, including compressive modulus (E), strength, and specific energy absorption (SEA) of triply periodic minimum surface (TPMS) lattice structures. The TPMS lattices were 3D-printed by fused filament fabrication (FFF) using polylactic acid (PLA) and carbon fiber-reinforced PLA(CFRPLA). The mechanical properties of the TPMS lattice structures were evaluated under uniaxial compression testing based on the design of experiments (DOE) approach, namely, full factorial design. Prediction modeling was conducted and compared using mathematical and intelligent modeling, namely, adaptive neuro-fuzzy inference systems (ANFIS). ANFIS modeling allowed the 3D printing imperfections (e.g., RD variations) to be taken into account by considering the actual RDs instead of the designed ones, as in the case of mathematical modeling. In this regard, this was the first time the ANFIS modeling utilized the actual RDs. The desirability approach was applied for multi-objective optimization. The mechanical properties were found to be significantly influenced by cell type, cell size, CF incorporation, and RD, as well as their combination. The findings demonstrated a variation in the E (0.144 GPa to 0.549 GPa), compressive strength (4.583 MPa to 15.768 MPa), and SEA (3.759 J/g to 15.591 J/g) due to the effect of the studied variables. The ANFIS models outperformed mathematical models in predicting all mechanical characteristics, including E, strength, and SEA. For instance, the maximum absolute percent deviation was 7.61% for ANFIS prediction, while it was 21.11% for mathematical prediction. The accuracy of mathematical predictions is highly influenced by the degree of RD deviation: a higher deviation in RD indicates a lower accuracy of predictions. The findings of this study provide a prior prediction of the mechanical behavior of PLA and CFRPLA TPMS structures, as well as a better understanding of their potential and limitations.

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Architected lattices embedded with phase change materials for thermal management of high-power electronics: A numerical study

Cited by 21 publications

References 38 publications

Numerical Analysis of The Multilayer Structures Melting with Different Hole Network with Phase Change Material

Numerical Analysis of The Multilayer Structures Melting with Different Hole Network with Phase Change Material

Heat Dissipation Capability of Stagger-Stacked Double Data Rate Module

Prediction of Mechanical Properties for Carbon fiber/PLA Composite Lattice Structures Using Mathematical and ANFIS Models

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