1-Hexadeol/nano titanium dioxide composite phase change material with different nano-additives: Fabrication and enhanced thermal properties

Xu, Changlu; Fu, Tingwei; Wang, Wenze; Fang, Guiyin

doi:10.1016/j.est.2023.108259

Cited by 3 publications

(1 citation statement)

References 49 publications

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“…By increasing the MWCNT and SiO 2 concentration, the melting point was increased slightly, and thermal conductivity was increased. Xu et al [35] prepared 1-Hexadeol NE-PCM using nano-TiO 2 , nano-ZnO 2 , nano-Ag, and graphene nanoplates and investigated their properties. Thermal conductivity was improved significantly by graphene nanoplates.…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation of Thermal Properties Improvement of Nano-Enhanced Organic Phase Change Materials

Ambika,

Kalimuthu,

Chinnasamy

2024

J. Compos. Sci.

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Thermal energy storage (TES) using phase change materials (PCMs) is one of the potential solutions for stockpiling thermal energy and utilizing it for different applications, which results in effective energy usage. The main drawback of organic PCMs in practical applications is poor heat transfer due to low thermal conductivity (TC). Therefore, investigations into nano-enhanced PCMs are being explored to improve their thermophysical properties. In this work, the various thermophysical characteristics of nano-enhanced lauryl alcohol as a PCM were investigated using carbon-based and metallic nanoparticles. The results indicated that the addition of nanoparticles improved its thermal properties and affected other physical properties, such as viscosity. The latent heat was degraded with the addition of nanoparticles. The results revealed that by adding MWCNTs and CuO nanoparticles, a maximum of 82.6% and 49.6% improvement in TC was achieved, respectively. The maximum drop in latent heat during melting and freezing for the PCM with MWCNTs was about 10.1% and 9.3%, respectively, whereas for the PCM with CuO, they were about 11% and 10.3%, respectively. The lowest supercooling for the PCM with MWCNTs and CuO nanoparticles was 8.6 and 8.3 °C, respectively. The present work confirms that nano-enhanced PCMs can be a potential material for storing thermal energy for various applications.

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Section: Introductionmentioning

confidence: 99%

Comparative Investigation of Thermal Properties Improvement of Nano-Enhanced Organic Phase Change Materials

Ambika,

Kalimuthu,

Chinnasamy

2024

J. Compos. Sci.

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Novel phase‐change PDA‐Ni@GNS/CNF‐C/SA/PEG composites with ultrahigh shape stability and latent heat as thermal management material for microelectronic devices

Wang,

Yang,

Zhang

et al. 2024

J of Applied Polymer Sci

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Phase‐change materials (PCMs) have become a hot spot in the development of modern thermal management materials because of their absorbing and releasing heat while keeping the temperature constant during phase change process. However, their relatively low thermal conductivity (TC) considerably restricts their further application. In this work, graphene nanosheets (GNS) were initially nickel‐plated to increase the contact area between adjacent GNS (in the form of Ni@GNS) by constructing a “point‐surface” structure. Then, the prepared Ni@GNS was coated with polydopamine (PDA) to prepare PDA‐Ni@GNS, which helped to effectively reduce the interface thermal resistance (ITR) between the filler and the matrix, and also made the prepared filler more easily dispersed in the polymer matrix. By constructing well‐defined three‐dimensional (3D) thermally conductive pathways in the matrix, the PCMs exhibited excellent TC and effectively prevented the leakage of polyethylene glycol (PEG) even at low filler loading. The results of thermogravimetry (TG), differential scanning calorimeter (DSC), and cyclic DSC tests jointly showed that the PDA‐Ni@GNS/CNF‐C/SA/PEG PCMs displayed excellent thermal storage properties, high latent heat as well as good cyclic thermal stability. The present study provides a facile way of preparing PEG‐based PCMs, which are applicable in thermal management area.

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A Novel Paraffin Wax/Expanded Graphite/Bacterial Cellulose Powder Phase Change Materials for the Dependable Battery Safety Management

Zhao,

Chen,

Gong

et al. 2024

Batteries

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Although phase change materials (PCMs) exhibit effective performance in the thermal management of lithium-ion batteries (LIBs), their development is limited by low thermal conductivity and susceptibility to leakage during the solid–liquid phase transition. To address these challenges and enhance thermal management capabilities, this study introduces a novel composite phase change material (CPCM) synthesized by physically mixing paraffin (PA), expanded graphite (EG), and bacterial cellulose (BC). The thermal performance of CPCMs with varying BC proportions is evaluated, and their impact on temperature control in battery thermal management systems (BTMS) is assessed. The results show that the addition of EG and BC significantly improves the thermal conductivity of the CPCM, reaching a value of 1.39 W·m−1·K−1. This also enhances the uniformity of temperature distribution within the battery module and reduces CPCM leakage. By comparing temperature variations within the battery module under different operating conditions, it was found that the intricate network structure of the CPCM promotes uniform temperature distribution, effectively mitigating temperature rise. Consequently, the maximum temperature and maximum temperature difference within the battery module were maintained below 47 °C and 4 °C, respectively. Compared to a system without phase change material at a 3C discharge rate, the maximum cell temperature, maximum module temperature, and maximum temperature difference were reduced by 32.38%, 26.92%, and 34.94%, respectively. These findings provide valuable insights for the design and optimization of BTMS.

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1-Hexadeol/nano titanium dioxide composite phase change material with different nano-additives: Fabrication and enhanced thermal properties

Cited by 3 publications

References 49 publications

Comparative Investigation of Thermal Properties Improvement of Nano-Enhanced Organic Phase Change Materials

Comparative Investigation of Thermal Properties Improvement of Nano-Enhanced Organic Phase Change Materials

Novel phase‐change PDA‐Ni@GNS/CNF‐C/SA/PEG composites with ultrahigh shape stability and latent heat as thermal management material for microelectronic devices

A Novel Paraffin Wax/Expanded Graphite/Bacterial Cellulose Powder Phase Change Materials for the Dependable Battery Safety Management

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