A comprehensive review on thermophysical properties and solar thermal applications of organic nano composite phase change materials

Paul, J.; Kadirgama, K.; Samykano, M.; Pandey, A.K.; Tyagi, V.V.

doi:10.1016/j.est.2021.103415

Cited by 37 publications

(13 citation statements)

References 288 publications

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“…3 Consequently, there is a pressing need to enhance thermal management technology for electronic equipment. This is particularly crucial in high-density integrated systems such as artificial intelligence, 4 communication devices, 5 and power batteries. 6 To achieve efficient thermal management, it is essential to utilize proper materials with excellent thermal conductivity and electrical insulation.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal conductivity in boron nitride incorporated polyethylene/polymethyl methacrylate composites via double percolation structure

You,

Ke,

Tang

et al. 2024

Polymer Composites

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Due to the miniaturization, integration and multi‐functional development of contemporary electronic devices, there is a growing need for efficient thermal conductive composite materials. This study focuses on enhancing the dispersion of modified boron nitride (mBN) within a linear low‐density polyethylene (LLDPE) phase by incorporating LLDPE‐graft‐Aminomethylpyridine (LLDPE‐g‐Py) to non‐covalently modify BN. Additionally, polymethyl methacrylate (PMMA) and LLDPE polymers were introduced to create modified BN/LLDPE/PMMA (mBN/LLDPE/PMMA) composites with a double percolation structure. The co‐continuous structure of the polymer composites was observed by using scanning electron microscopy (SEM). By selectively locating the BN modified by LLDPE‐g‐Py within the LLDPE phase, the co‐continuous structure of the LLDPE/PMMA blend was upgraded to a double percolation structure. This double percolation structure establishes a dense and optimal heat transfer network within the polymer matrix. The thermal conductivity of the mBN/LLDPE/PMMA composite with BN loading of 40 wt% was significantly increased to 1.12 Wm−1 K−1, which was 350% higher than that of pure LLDPE, 38% higher than that of the BN/LLDPE composite, and 17% higher than that of the BN/LLDPE/PMMA composite. This study offers valuable insights into non‐covalent modification techniques for BN and the design of double percolation structures in thermal conductive polymer composites.Highlights The double percolation structure was successfully constructed by simple melt blending method with LLDPE and PMMA as matrix and BN as thermal conductive filler. The double percolation structure can significantly promote the efficiency of heat transfer inside the thermal conductive composites. A novel non‐covalent modifier LLDPE‐g‐Py was prepared to modify the surface of BN, and the selective localization of modified BN (mBN) in the LLDPE phase was realized.

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Section: Introductionmentioning

confidence: 99%

Enhanced thermal conductivity in boron nitride incorporated polyethylene/polymethyl methacrylate composites via double percolation structure

You,

Ke,

Tang

et al. 2024

Polymer Composites

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“…Commercial applications for PCMs include heating and cooling systems, ovens, solar heaters, helmets, and more. Most commonly, they are encapsulated before installation to boost energy efficiency [7]. Between the phase transition, they can store a sizable quantity of energy owing to their superior energy storage density and very small storage volume, both of which remain almost constant during melting and solidification (shown in Figure 1(a)) [8].…”

Section: Introductionmentioning

confidence: 99%

Phase change materials integrated buildings: A short review

Jacob,

Paul,

Selvaraj

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Buildings account for one-third of global energy consumption and 38% of greenhouse gas emissions. Improving a building’s energy efficiency is vital in minimizing climate change. As an alternative to active cooling systems, passive cooling methods are promising. Thermal energy storage employing latent heat is an effective passive cooling strategy for increasing a building’s thermal inertia and, in turn, reducing temperature fluctuations and improving thermal comfort for building occupants. To do this, high-density phase change materials (PCMs) for thermal energy storage (TES) can be put to good use. Recent developments in TES techniques using PCMs have gained much research focus, primarily to improve energy efficiency and promote clean energy sources. PCMs are regarded as the most promising materials due to their high energy storage density for developing high-performance and energy-efficient buildings. The primary disadvantage of PCM is its low thermal conductivity, limiting its practical usage, which could be resolved by loading nano or micro-sized conductive fillers. The investigated system’s initial findings show that they effectively lower indoor temperature changes and energy demand during winter seasons and can cause load reduction or shifting.

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“…With the rapid consumption of traditional fossil fuels, the Earth received approximately 122,000 TW (70%) of the solar radiation into the upper atmosphere (174,000 TW) (Paul et al 2021 ). The energy demand is expected to reach 26.76 TW within the next two decades, so the energy crisis urges people to find more sustainable and clean alternative energy sources (Liang et al 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Enzymatic synthesis of a novel solid–liquid phase change energy storage material based on levulinic acid and 1,4-butanediol

Zhai

Zhang

Zhao

et al. 2022

Bioresour. Bioprocess.

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The current energy crisis has prompted the development and utilization of renewable energy and energy storage material. In this study, levulinic acid (LA) and 1,4-butanediol (BDO) were used to synthesize a novel levulinic acid 1,4-butanediol ester (LBE) by both enzymatic and chemical methods. The enzymatic method exhibited excellent performance during the synthesis process, and resulted in 87.33% of LBE yield, while the chemical method caused more by-products and higher energy consumption. What’s more, the thermal properties of the obtained LBE as a phase change material (PCM) were evaluated. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) showed that the melting temperature, latent heat of melting, and pyrolysis temperature were 50.51 °C, 156.1 J/g, and 150–160 °C, respectively. Compared with the traditional paraffin, the prepared PCM has a superior phase transition temperature, a higher latent heat of melting, and better thermal stability. The thermal conductivity could be increased to 0.34 W/m/k after adding expanded graphite (EG). In summary, LBE has great potential in the application of energy storage as a low-temperature phase change energy storage material. Graphical Abstract

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A comprehensive review on thermophysical properties and solar thermal applications of organic nano composite phase change materials

Cited by 37 publications

References 288 publications

Enhanced thermal conductivity in boron nitride incorporated polyethylene/polymethyl methacrylate composites via double percolation structure

Enhanced thermal conductivity in boron nitride incorporated polyethylene/polymethyl methacrylate composites via double percolation structure

Phase change materials integrated buildings: A short review

Enzymatic synthesis of a novel solid–liquid phase change energy storage material based on levulinic acid and 1,4-butanediol

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