An experimental study of enhanced heat sinks for thermal management using n-eicosane as phase change material

Arshad, Adeel; Ali, Hafız Muhammad; Yan, Wei‐Mon; Hussein, Ahmed Kadhim; Ahmadlouydarab, Majid

doi:10.1016/j.applthermaleng.2017.12.066

Cited by 126 publications

(24 citation statements)

References 54 publications

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“…To enhance the heat transfer enhancement and TES performance of organic PCMs, some strategies such as encapsulation [1] and shape-stabilization [2] have been carried out. There are several thermal conductive materials (TCMs) which have been embedded with PCMs to overcome their low thermal conductivity such as metal-fins [3,4,5,6,7,8,9], metal-foam [10], carbon additives [11,12,13,14], metallic and metal oxides nanoparticles [13,15,16,17,14].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characteristics evaluation of mono and hybrid nano-enhanced phase change materials (NePCMs) for thermal management of microelectronics

Arshad

Jabbal

Yan

2020

Energy Conversion and Management

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103

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Efficient, clean and quiet thermal management has become a vital challenge in for cooling of electronic devices. To enhance the capability and efficiency of passive thermal management, novel composite materials have been designed by the combination of graphene nanoplatelets (GNPs), multiwall carbon nanotubes (MWCNTs), aluminium oxide (Al 2 O 3 ) and copper oxide (CuO) dispersed in the RT-28HC used as a phase change material (PCM). The series of mono and hybrid nano-enhanced phase change materials (NePCMs) were synthesized using constant mass fraction of 1.0 wt.% of each type of nanoparticles to establish the optimum NePCM in terms of thermal properties for efficient thermal management of microelectronics. Various material characteristic techniques such as ESEM, FT-IR, XRD, TGA, DTG, DCS, IRT and thermal conductivity apparatus were used and microstructure, chemical composition, crystallinity, thermal and phase-change heat transfer characteristics were investigated extensively for each sample of NePCM. The results showed good chemical and thermal stability of all NePCMs without changing the chemical structure of RT-28HC.The surface morphology and crystal formation analysis revealed the uniform dispersion of nanoparticles onto the surface of RT-28HC. In comparison of mono and hybrid NePCMs, the results showed the hybrid NePCM at GNPs/MWCTs mass percentage ratio of 75%/25% had the highest thermal conductivity enhancement of 96% compared to the pure PCM having optimum value of phase-change enthalpy of 245.18 J/g. Finally, enhancement in phase transition while melting and thermal properties evidenced that hybrid NePCMs can be used as potential candidate for the thermal management of microelectronics.

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Section: Introductionmentioning

confidence: 99%

Preparation and characteristics evaluation of mono and hybrid nano-enhanced phase change materials (NePCMs) for thermal management of microelectronics

Arshad

Jabbal

Yan

2020

Energy Conversion and Management

Self Cite

103

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“…Recently, Arshad et al 36 have numerically studied the transient behavior of a finned PCM‐based heat sink for electronics cooling purposes. This study was a continuation of previous experimental work by the same authors 37 . Metal fins of a thickness of 2 and 3 mm were inserted into the PCM‐based heat sink.…”

Section: Application Of Pcm In the Thermal Management Of Electronic Cmentioning

confidence: 88%

Emerging applications of phase change materials: A concise review of recent advances

et al. 2020

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Phase change materials (PCMs) are used as latent heat thermal energy storage materials. The fields of application for PCMs are broad and diverse. Among these areas are thermal control of electronic components and thermal building regulations. These areas are used as heat and cold storage materials. The low thermal conductivity of PCMs is one of the significant and severe technological problems of PCMs. This paper presents a review of the latest works using PCMs in the thermal management of electronic components, buildings, and heat exchangers. Besides, it provides concise pieces of information on the classification of PCMs, their advantages, disadvantages, and thermal storage systems.

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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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An experimental study of enhanced heat sinks for thermal management using n-eicosane as phase change material

Cited by 126 publications

References 54 publications

Preparation and characteristics evaluation of mono and hybrid nano-enhanced phase change materials (NePCMs) for thermal management of microelectronics

Preparation and characteristics evaluation of mono and hybrid nano-enhanced phase change materials (NePCMs) for thermal management of microelectronics

Emerging applications of phase change materials: A concise review of recent advances

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

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