Thermal management of electronics devices with PCMs filled pin-fin heat sinks: A comparison

Ali, Hafız Muhammad; Arshad, Adeel; Jabbal, Mark; Verdin, Patrick G.

doi:10.1016/j.ijheatmasstransfer.2017.10.065

Cited by 193 publications

(52 citation statements)

References 37 publications

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“…Thus, a PCM with higher latent-heat and thermal conductivity with stable chemical structure is the most suitable. To overcome this issue, researchers have introduced several heat transfer enhancement techniques including extruded metal-fins [12,13,14,15,16,17], metal-foam and porous materials [18,19], nanomaterials [20,21,22] encapsulated micro/nano-capsules [23,24,25,26].…”

Section: Introductionmentioning

confidence: 99%

Thermophysical characteristics and application of metallic-oxide based mono and hybrid nanocomposite phase change materials for thermal management systems

Arshad

Jabbal

Yan

2020

Applied Thermal Engineering

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This experimental study covers the chemical, physical, thermal characterization and application of novel nanocomposite phase change materials (NCPCMs) dispersed by TiO 2 , Al 2 O 3 , and CuO nanoparticles. A commercial-grade of paraffin, namely RT-35HC, was considered as a phase change material (PCM). The mono and hybrid NCPCMs were synthesized at a constant weight concentration of 1.0 wt.%. In the first phase, various characterization techniques were used to explore the thermophysical properties and chemical interaction of mono and hybrid NCPCMs. In the second phase, the thermal cooling performance was investigated by filling the prepared NCPCMs in a heat sink at various input power levels. The results showed the uniform dispersion of TiO 2 , Al 2 O 3 , and CuO nanoparticles onto the surface of both mono and hybrid NCPCMs without altering the chemical structure of RT-35HC. The optimum latent-heat of fusion and highest thermal conductivity of 228.46 J/g and 0.328 W/m.K were obtained, respectively, of Al 2 O 3 +CuO dispersed hybrid NCPCM compared to pure RT-35HC. In comparison of RT-35HC, the increasing trend in specific heat capacity was observed of NCPCMs and 36.47% enhancement was obtained for hybrid NCPCM in solid-phase. The reduction in heat sink base temperature was achieved of 3.67%, 6.13%, 13.95% and 8.23% for NCPCM T iO 2 , NCPCM Al 2 O 3 , NCPCM CuO and NCPCM Al 2 O 3 +CuO , respectively, compared to RT-35HC. Further, no phase segregation, less subcooling, smaller phase transition temperature, higher chemical and thermal stability were observed with hybrid NCPCMs which can be used potentially for thermal management of electronic devices, Li-ion batteries and photovoltaic (PV) modules systems.

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Section: Introductionmentioning

confidence: 99%

Thermophysical characteristics and application of metallic-oxide based mono and hybrid nanocomposite phase change materials for thermal management systems

Arshad

Jabbal

Yan

2020

Applied Thermal Engineering

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“…In fact, the miniaturization of electronic components causes an increase in their working temperature and subsequently the challenge of cooling them 1 . To overcome this challenge, phase change materials (PCMs) are integrated in heat sinks for latent heat storage 2,3 . These PCMs are integrated in numerous fields of applications like the thermal regulation of the building, 4 the thermal regulation of agricultural greenhouses 5 .…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of single and hybrid nanoparticles on melting of phase change material in a rectangular enclosure with finite heat source

2020

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Summary This article presents two‐dimensional (2D) transient numerical simulation and mathematical modeling of a heat sink based on nano‐enhanced phase change materials (NePCMs) to study their performance for the cooling of an electronic component. n‐eicosane is used as a PCM and Al2O3, ZnO, CuO and Cu are used as nanoparticles in NePCMs. An electronic component is mounted in the center of the bottom wall and which an aluminum fin simulating the role of a substrate (motherboard) occupies. The NePCM completely fills the inner part of the heat sink. The NePCM store the heat generated by the protuberant electronic component. The transient regime is numerically performed adopting the finite volume method and the enthalpy‐porosity technique. It has been found that the mean heat transfer and the fluid flow structure are closely dependent on the nanoparticles type in NePCM. The addition of single NePCM, with volume fractions of 2% and 4%, decreases the electronic component operating temperature and the latent heat phase duration during which the electronic component operates safely. The hybrid NePCM shows a different behavior by decreasing the electronic component operating temperature and increasing the latent phase duration. Compared to pure PCM, by inserting a volume fraction of 4%‐Cu, the electronic component working temperature decreases by 4.69% and the latent heat phase duration decreases by 3.33%. Compared to pure PCM, hybrid nanoparticle insertion of 1%‐Al2O3 and 3%‐Cu showed a 5.77% decrease in the electronic component operating temperature and a 31.11% increase in the latent heat phase duration. By inserting hybrid nanoparticles instead of single nanoparticles, the effective thermal effusivity of NePCM is improved by 10.85%.

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“…The lower thermal conductivity of OPCMs reduces the rate of heat transfer, which causes increase in temperature gradient and insensitivity to temperature changes across the system boundaries. OPCMs, with potential advantage as TES materials, are being developed for applications including air conditioning, ie, natural air cooling, cold thermal storage and absorption refrigeration, waste heat recovery, solar energy storage, thermal regulating fabric, passive heating of building, heat pipes, desalination, thermal management of electronic devices and electric vehicle batteries, spacecraft, and other integrated thermal control systems such as trombe wall, PCM‐filled wallboards, shutter, concrete, under floor heating systems, ceiling boards, and hot water supply . However, the leakage issue and lower thermal conductivity of OPCMs causes harm with interacting medium and results in energy efficiency losses of the thermal system.…”

Section: Introductionmentioning

confidence: 99%

The micro‐/nano‐PCMs for thermal energy storage systems: A state of art review

et al. 2019

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Summary With advancement in technology—nanotechnology, various thermal energy storage (TES) materials have been invented and modified with promising thermal transport properties. Solid‐liquid phase change materials (PCMs) have been extensively used as TES materials for various energy applications due to their highly favourable thermal properties. The class of PCMs, organic phase change materials (OPCMs), has more potential and advantages over inorganic phase change materials (IPCMs), having high phase change enthalpy. However, OPCMs possess low thermal conductivity as well as density and suffer leakage during the melting phase. The encapsulation technologies (ie, micro and nano) of PCMs, with organic and inorganic materials, have a tendency to enhance the thermal conductivity, effective heat transfer, and leakage issues as TES materials. The encapsulation of PCMs involves several technologies to develop at both micro and nano levels, called micro‐encapsulated PCMs (micro‐PCM) and nano‐encapsulated PCMs (nano‐PCM), respectively. This study covers a wide range of preparation methods, thermal and morphological characteristics, stability, applications, and future perspective of micro‐/nano‐PCMs as TES materials. The potential applications, such as solar‐to‐thermal and electrical‐to‐thermal conversions, thermal management, building, textile, foam, medical industry of micro‐ and nano‐PCMs, are reviewed critically. Finally, this review paper highlights the emerging future research paths of micro‐/nano‐PCMs for thermal energy storage.

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Thermal management of electronics devices with PCMs filled pin-fin heat sinks: A comparison

Cited by 193 publications

References 37 publications

Thermophysical characteristics and application of metallic-oxide based mono and hybrid nanocomposite phase change materials for thermal management systems

Thermophysical characteristics and application of metallic-oxide based mono and hybrid nanocomposite phase change materials for thermal management systems

Investigating the effect of single and hybrid nanoparticles on melting of phase change material in a rectangular enclosure with finite heat source

The micro‐/nano‐PCMs for thermal energy storage systems: A state of art review

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