Experimental evaluation of metallic phase change materials for thermal transient mitigation

Gonzalez-Nino, David; Boteler, Lauren; Ibitayo, Dimeji; Jankowski, Nicholas R.; Urciuoli, Damian; Kierzewski, Iain; Quintero, Pedro O.

doi:10.1016/j.ijheatmasstransfer.2017.09.039

Cited by 57 publications

(14 citation statements)

References 23 publications

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“…Metallic PCMs (and alloys) have melting points in the same range as that of junction temperature of SiC/Si devices [115]. Hence, they have proven to be advantageous for transient applications during faults.…”

Section: A Adding Materials On the Top Of The Chipmentioning

confidence: 99%

Enablers for Overcurrent Capability of Silicon-Carbide-Based Power Converters: An Overview

Bhadoria

Dijkhuizen

Raj

et al. 2023

IEEE Trans. Power Electron.

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With the increase in penetration of power electronic converters in the power systems, a demand for overcurrent/overloading capability has risen for the fault clearance duration. This article gives an overview of the limiting factors and the recent technologies for the over-current performance of SiC power modules in power electronics converters. It presents the limitations produced at the power module level by packaging materials which include semiconductor chips, substrates, metallization, bonding techniques, die attach, and encapsulation materials. Specifically, technologies for over-current related temperatures in excess of 200 • C are discussed. The paper also discusses potential technologies which have been proven or may be potential candidates for improving the safe operating area. The discussed technologies are use of phase change materials below the semiconductor chip, Peltier elements, new layouts of the power modules, control and modulation techniques for converters. Special attention has been given to an overview of various potential phase change materials which can be considered for high-temperature operations.

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Section: A Adding Materials On the Top Of The Chipmentioning

confidence: 99%

Enablers for Overcurrent Capability of Silicon-Carbide-Based Power Converters: An Overview

Bhadoria

Dijkhuizen

Raj

et al. 2023

IEEE Trans. Power Electron.

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“…The strong heat conductivity of the metallics distinguishes them significantly from other PCMs. 8 Organic PCMs Organic PCMs are divided into the paraffin and non-paraffin subgroups. Without any loss in their latent heat of fusion and phase segregation, these materials have the property of congruent melting i.e., repeatedly melting and freezing.…”

Section: Inorganic Pcmsmentioning

confidence: 99%

Development and thermophysical analysis of binary eutectics phase change materials for solar drying application

Pandey

Anand²,

Buddhi³

et al. 2022

F1000Res

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Background: In the past 30–40 years, conflicts over limited conventional energy sources and the negative climate change caused by them have attracted researchers and analysts to new, clean, and green energy technologies. Thereby reducing the consumption of conventional fuel and the negative impact on the climate. The production of alternative energy in the form of thermal energy storage using phase change materials (PCMs) is one of the techniques that not only reduces the gap between the supply and demand of energy but also increases the stability of the energy supply. The tendency of PCMs to melt and solidify over a wide temperature range makes them more attractive for use in many applications. The effective and efficient storage of solar energy by PCM has the potential to significantly advance the use of renewable energy. Methods: Organic non-paraffin compound beeswax (BW) mixed with other non-paraffin compounds stearic acid (SA), Palmitic acid (PA), Myristic acid (MA), and Lauric acid (LA) in different compositions with the help of magnetic stirrer at 50–60°C for 3–4 hours to prepare BWSA, BWPA, BWMA, and BWLA eutectic PCM. Results: Prepared eutectics melt and solidify in the temperature range 36–56°C and with latent heat in the range of 155–211 kJ/Kg. Conclusions: Due to suitable temperature and good latent heat storage range, it is a good choice as thermal energy storage, for solar drying applications.

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“…Recent work has demonstrated that for the same boundary conditions, metallic PCMs absorb heat ∼ 1 to 2 orders of magnitude faster than other classes of PCMs [18]. One recent study on metallic PCMs in transient, high powered applications found a significant reduction in system operating temperature when compared to polymeric PCMs (upwards of 60 °C at 160 W) [19].…”

Section: Introductionmentioning

confidence: 99%

Machine-Learning Assisted Optimization Strategies for Phase Change Materials Embedded within Electronic Packages

Bhatasana,

Marconnet

2021

Preprint

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Leveraging the latent heat of phase change materials (PCMs) can reduce the peak temperatures and transient variations in temperature in electronic devices. But as the power levels increase, the thermal conduction pathway from the heat source to the heat sink limits the effectiveness of these systems. In this work, we evaluate embedding the PCM within the silicon device layer of an electronic device to minimize the thermal resistance between the source and the PCM to minimize this thermal resistance and enhance the thermal performance of the device. The geometry and material properties of the embedded PCM regions are optimized using a combination of parametric and machine learning algorithms. For a fixed geometry, considering commercially available materials, Solder 174 significantly outperforms other organic and metallic PCMs. Also with a fixed geometry, the optimal melting points to minimize the peak temperature is higher than the optimal melting point to minimize the amplitude of the transient temperature oscillation, and both optima increase with increasing heater power. Extending beyond conventional optimization strategies, genetic algorithms and particle swarm optimization with and without neural network surrogate models are used to enable optimization of many geometric and material properties. For the test case evaluated, the optimized geometries and properties are similar between all ML-assisted algorithms, but the computational time depends on the technique. Ultimately, the optimized design with embedded phase change materials reduces the maximum temperature rise by 19% and the fluctuations by up to 88% compared to devices without PCM.

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Experimental evaluation of metallic phase change materials for thermal transient mitigation

Cited by 57 publications

References 23 publications

Enablers for Overcurrent Capability of Silicon-Carbide-Based Power Converters: An Overview

Enablers for Overcurrent Capability of Silicon-Carbide-Based Power Converters: An Overview

Development and thermophysical analysis of binary eutectics phase change materials for solar drying application

Machine-Learning Assisted Optimization Strategies for Phase Change Materials Embedded within Electronic Packages

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