Thermal transport properties of carbon-assisted phase change nanocomposite

Kim, Sung Chul; Prabakaran, Rajendran; Saravanakumar, Duraisamy; Thangapandian, N.; Bhatia, Arpit; Kumar, P. Ganesh

doi:10.1080/1536383x.2020.1786814

Cited by 26 publications

(8 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This can be done in many ways, but the most common approach for dispersion of CNTs is sonication process, which uses high-frequency vibrations to evenly disperse the CNTs within a base fluid. 24,25 Sonication is one of the most commonly used MWCNTs dispersion technique due to its simplicity and applicability.…”

Section: Methodsmentioning

confidence: 99%

Multi-wall carbon nanotubes coating on a copper substrate using airbrush spray coating

Meikandan

Kumar

Sakthivadivel

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

The spray coating technique is used in this study to spread a thin layer of nanoparticle on a large flat substrate. The proposed spray coating techniques has a great potential for large scale productions, as these techniques have no restrictions on the substrate size and low utilization of the process parameters. In this study, a simple airbrush spray coating technique is used to deposit the multiwall carbon nanotubes (MWCNTs) on copper substrates with a decent deposition control. The microstructures, surface roughness, and wettability of the coated substrates were tested and compared with the pure copper substrates. The MWCNTs coated copper substrates exhibits a significant enhancement of the mechanical properties compared to the normal surface. The thickness of the copper substrates increases with increase in coating weight concentrations, the maximum thickness 1.43 microns achieved at 0.4 wt. % of MWCNTs. The usage of copper and MWCNTs based thin film signifies a inspiring but possibly a sustaining chance for developing the future generation heat transfer materials

show abstract

Section: Methodsmentioning

confidence: 99%

Multi-wall carbon nanotubes coating on a copper substrate using airbrush spray coating

Meikandan

Kumar

Sakthivadivel

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

show abstract

“…The NPCM composites were prepared using a twostep mechanical dispersion method [25] and [26], as illustrated in Fig. 1.…”

Section: Preparation Of Npcm Compositesmentioning

confidence: 99%

Preparation and Thermal Characterization of Nanographene- Enhanced Fatty Acid-Based Solid-Liquid Organic Phase Change Material Composites for Thermal Energy Storage

Kittusamy¹,

Rajagopal²,

Felix³

2022

sv-jme

View full text Add to dashboard Cite

In this research work, nano-phase change material (NPCM) composites were prepared by adding 1 %, 2 %, and 3 % mass fractions of highly conductive carbon-based graphene nanoparticles into the base phase change material (PCM). The existence and uniform graphene dispersion in the PCM was confirmed through Raman spectrometer and scanning electron microscope (SEM) analysis. The Fourier transform infrared (FTIR) and x-Ray diffraction (XRD) results showed that all three NPCM composites were chemically stable, and their crystallinity was similar to the base PCM. For the sample with 3 % graphene, the solid-state thermal conductivity was increased by 219.89 %, and liquid-state thermal conductivity was increased by 161.65 %, with a 3.52 % drop in latent heat capacity was revealed from differential scanning calorimetry (DSC) analysis. All NPCM composites have onset and peak melting temperatures closer to the base PCM. Hence, the NPCM composites can be employed for thermal energy storage (TES) integrated solar water heater (SWH) applications.

show abstract

“…Another solution is to use various additives, i.e., nanometric structures in a small volume fraction, to increase the actual thermal conductivity of the PCM [ 14 ]. The thermal transfer properties of PCMs can be improved by adding different materials with high thermal conductivity, such as nano-graphite sheets [ 15 , 16 ], metal foam [ 17 ], alumina, TiO 2 [ 18 ], carbon fibre [ 19 ], carbon multiwall nanotubes [ 20 ] or expanded graphite [ 21 , 22 , 23 , 24 , 25 ]. Cong et al [ 26 ] published a comprehensive review on the thickening and gelling agents as additives, aiming to improve the stability and stabilise the shape of thermal energy storage materials.…”

Section: Introductionmentioning

confidence: 99%

Paraffin-Multilayer Graphene Composite for Thermal Management in Electronics

et al. 2023

View full text Add to dashboard Cite

Multilayer graphene–paraffin composites with different contents of graphene (0–10 wt.%) were prepared using an ultra-high shear mixer. The aim is to improve the heat transfer in paraffin wax, which will lead to more-efficient thermal buffering in electronic applications. The multi-layer graphenes obtained by supercritical fluid exfoliation of graphite in alcohol were investigated by Raman spectroscopy, scanning electron microscopy and atomic force microscopy. Interesting morphological features were found to be related to the intercalation of paraffins between the multilayer graphene flakes. Thermal properties were also investigated in terms of phase change transition temperatures, latent heat by differential scanning calorimetry and thermal conductivity. It was found that the addition of graphene resulted in a slight decrease in energy storage capacity but a 150% improvement in thermal conductivity at the highest graphene loading level. This phase-change material is then used as a thermal heat sink for an embedded electronic processor. The temperature of the processor during the execution of a pre-defined programme was used as a performance indicator. The use of materials with multilayer graphene contents of more than 5 wt.% was found to reduce the processor operating temperature by up to 20%. This indicates that the use of such composite materials can significantly improve the performance of processors.

show abstract

Thermal transport properties of carbon-assisted phase change nanocomposite

Cited by 26 publications

References 49 publications

Multi-wall carbon nanotubes coating on a copper substrate using airbrush spray coating

Multi-wall carbon nanotubes coating on a copper substrate using airbrush spray coating

Preparation and Thermal Characterization of Nanographene- Enhanced Fatty Acid-Based Solid-Liquid Organic Phase Change Material Composites for Thermal Energy Storage

Paraffin-Multilayer Graphene Composite for Thermal Management in Electronics

Contact Info

Product

Resources

About