Thermal performance of phase change material–based heat sink for passive cooling of electronic components: An experimental study

Kothari, Ravi; Sahu, Santosh Kumar; Kundalwal, S. I.; Mahalkar, Pawan

doi:10.1002/er.6215

Cited by 39 publications

(14 citation statements)

References 65 publications

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“…Some of the potential options cover a large variety of heat sinks, 4,5 heat spreaders, 6,7 heat pipes, [8][9][10][11][12] as well as thermal interface materials [13][14][15][16] which are recognized as some of the most preferred passive thermal management methods. Kothari et al 17 experimentally investigated the thermal performance of various phase change material (PCM)-based heat sinks particularly for portable electronic devices. They used paraffin wax as the main PCM in various configurations, such as unfinned with pure PCM, finned with pure PCM, unfinned with metallic foam-PCM composite, and finned with metallic foam-PCM composite.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and performance evaluation of thermal energy management arrangements for robots

Sevinchan

Dinçer

Lang

2022

Energy Science & Engineering

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In this study, thermal energy management systems with the choices of three different thermal insulating materials are experimentally investigated for robotic applications. These insulating materials are stone wool, fiberglass and extruded polyurethane with air cooling and heating system which are evaluated in the low and high temperature environments to really assess the thermal behavior and performance in such extreme ambient conditions. In this regard, thermodynamic and heat transfer modeling studies are undertaken to investigate various performance parameters, including energy and exergy efficiencies. The experimental results showed that energy efficiencies of the thermal management methods are obtained 46.34% for stone wool, 31.15% for fiberglass, and 44.3% for air cooling system at 40°C. Moreover, the exergy efficiencies are 12.6% for stone wool, 15.08% for fiberglass, 18.91% for extruded polyurethane, and 3.86% for air cooling system.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation and performance evaluation of thermal energy management arrangements for robots

Sevinchan

Dinçer

Lang

2022

Energy Science & Engineering

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“…Continuous efforts have been made to explore the complicated phase change process, to get deeper physical insight into this complex transient heat transfer problem 28‐33 . Melting of phase change materials (PCMs) that are fully filled in a rectangular tank has been extensively studied owing to the essential role of energy conversion in thermal applications including thermal energy storage, 34‐36 passive cooling of electronics devices, 37‐39 foundry metallurgy, 40 building energy utilization, 41‐43 and thermal management of batteries 44,45 . A large number of studies 46‐49 have turned out that melting in a closed room is remarkably influenced by the coupled effect of conduction in PCM and local free convection in the melted PCM.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance assessment of a thermal energy storage tank: effect of aspect ratio and tilted angle

et al. 2021

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Summary Latent heat thermal energy storage is essential for a broad range of multidisciplinary thermal applications, due to its capability of keeping a relative constant temperature during thermal energy storage/release. The aspect ratio (AR) and installation angle (tilted angle) for a latent heat energy storage tank play important roles in addressing the issue of thermal energy storage/release efficiency. In this work, the coupled effects of tank aspect ratio and tilted angle upon melting phase change were both experimentally and numerically investigated. Wide range of tank aspect ratios from 0.1 to 8.0 was studied with respect to four representative tilted angles (0°, 30°, 60°, and 90°). The detailed features of melting front propagation, temperature distribution, and free convection development in the melt phase were quantified. Results indicated that melting heat transfer was markedly affected by the tilted angle, regardless of tank aspect ratio. However, the fastest melting occurred at different tilted angles, if different tank aspect ratios were considered. With AR < 1.0, the highest melting rate was found at 0° inclination. As for AR > 2.0, the fastest melting was achieved at an inclination of 60°.

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“…Although the cooling performance of passive cooling is much lower than that of active cooling, passive systems are important in mobile systems that cannot include active cooling systems (i.e., fan or liquid circulation) [21]. To enhance the heat dissipation in passive cooling, the shape and surface of the heat sink were investigated [22].…”

Section: Introductionmentioning

confidence: 99%

Thermal Radiative Copper Oxide Layer for Enhancing Heat Dissipation of Metal Surface

Park

Kim

et al. 2021

Nanomaterials

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The heat dissipation of a metal heat sink for passive cooling can be enhanced by surface modifications to increase its thermal emissivity, which is reflected by a darker surface appearance. In this study, copper electrodeposition followed by heat treatment was applied to a copper substrate. The heat treatment formed a nanoporous oxide layer containing CuO and Cu2O, which has a dark blackish color and therefore increased the thermal emissivity of the surface. The heat dissipation performance was evaluated using the sample as a heat sink for an LED module. The surface-treated copper heat sink with a high thermal emissivity oxide layer enhanced the heat dissipation of the LED module and allowed it to be operated at a lower temperature. With an increase in the heat treatment, the thermal emissivity increases to 0.865, but the thermal diffusivity is lower than the copper substrate by ~12%. These results indicate that the oxide layer is a thermal barrier for heat transfer, thus optimization between the oxide thickness and thermal emissivity is required by evaluating heat dissipation performance in operating conditions. In this study, an oxide layer with an emissivity of 0.857 and ~5% lower thermal diffusivity than the copper substrate showed the lowest LED operating temperature.

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Thermal performance of phase change material–based heat sink for passive cooling of electronic components: An experimental study

Cited by 39 publications

References 65 publications

Experimental investigation and performance evaluation of thermal energy management arrangements for robots

Experimental investigation and performance evaluation of thermal energy management arrangements for robots

Thermal performance assessment of a thermal energy storage tank: effect of aspect ratio and tilted angle

Thermal Radiative Copper Oxide Layer for Enhancing Heat Dissipation of Metal Surface

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