Preparation and physical and thermal characterizations of enhanced phase change materials with nanoparticles for energy storage applications

Muzhanje, Allan T.; Hassan, M.A.; El-Moneim, A.A.; Hassan, Hamdy

doi:10.1016/j.molliq.2023.122958

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…According to their findings, the hybrid nanocomposite PCMs produced have better thermal properties and can be applied to electronic device thermal management. Muzhanje et al [18] prepared an NE-PCM and studied the physical and thermal characterization. The melting rate was improved threefold with 5 wt% of metallic nanoparticles.…”

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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“…Inorganic salts, such as silicates, carbonates, nitrates, phosphates, and chloride salts, are widely employed as thermal storage materials due to their appropriate melting temperature, high heat storage capacity, and density [17,18]. However, the utilization of phase-change materials composed of inorganic salts is significantly restricted due to their unstable physical properties, lower thermal conductivity, and corrosiveness during the phase transition process [19,20]. The incorporation of high thermal conductivity and physically stable skeleton materials with inorganic salts for the preparation of composite phase change materials (CPCMs) can effectively enhance their durability and stability [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Research on NaCl-KCl High-Temperature Thermal Storage Composite Phase Change Material Based on Modified Blast Furnace Slag

Zhang,

Cui,

et al. 2024

Energies

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The high-temperature composite phase change materials (HCPCMs) were prepared from solid waste blast furnace slag (BFS) and NaCl-KCl binary eutectic salt to achieve efficient and cost-effective utilization. To ensure good chemical compatibility with chlorine salt, modifier fly ash (FA) was incorporated and subjected to high-temperature treatment for the processing of industrial solid waste BFS, which possesses a complex chemical composition. The HCPCMs were synthesized through a three-step process involving static melting, solid waste modification, and mixing–cold pressing–sintering. Then, the influence of the modification method and the amount of SiC thermal conductivity reinforced material on chemical compatibility and thermodynamic performance was explored. The results demonstrate that the predominant phase of the modified solid waste is Ca2Al2SiO7, which exhibits excellent chemical compatibility with chlorine salt. HCPCMs containing less than 50 wt.% chloride content exhibit good morphological stability without any cracks, with a melting temperature of 661.76 °C and an enthalpy value of 108.73 J/g. Even after undergoing 60 thermal cycles, they maintain good chemical compatibility, with leakage rates for melting and solidification enthalpies being only 6.3% and 0.23%, respectively. The equilibrium was achieved when 40 wt.% of chloride salt was encapsulated upon the addition of 10% of SiC, and the incorporation of SiC resulted in an enhancement of thermal conductivity for HCPCMs to 2.959 W/(m·K) at room temperature and 2.400 W/(m·K) at 200 °C, with an average increase of about 2 times. The cost of the prepared HCPCMs experienced a significant reduction of 81.3%, demonstrating favorable economic performance and promising prospects for application. The research findings presented in this article can offer significant insights into the efficient utilization of solid waste.

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Enhancing Air Conditioning System Performance via Dual Phase Change Materials Integration: Seasonal Efficiency and Capsulation Structure Impact

Ismail,

Hassan

2024

Int J Thermophys

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Enhancement of the cooling and heating capabilities of an air conditioning unit (ACU) coupled with a thermal energy storage system of dual phase change materials (PCM) is investigated. The dual PCM, namely SP24E and SP11_gel, are coupled with the ACU outdoor device (condenser/evaporator) during the summer/winter seasons, respectively. Moreover, ACU performance assisted with dual-PCM heat exchanger is compared with a single heat exchanger of SP24E in summer and single heat exchanger of SP11_gel in winter at different PCM capsulation structures (aligned and staggered cylinders). The system dynamic mathematical model is computationally solved using ANSYS software and experimentally validated. Results affirm that charging/discharging periods are minimal for the dual-PCM system and slower for PCM inline cylinder layouts than staggered ones. Inline design yields greater ACU average power savings. In summer, higher inlet air temperature to the PCM system reduces PCM discharging time and ACU power savings, with the opposite effect during winter. ACU COP with PCMs is improved by around 80 % in summer and 40 % in winter, respectively, compared to ACU without PCMs. The maximum average power saving over 4 h of ACU working in summer by single and dual-PCM systems is 21.4 % and 11.8 %, respectively, whereas the results in winter are 18.5 % and 12.8 %, respectively.

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Preparation and physical and thermal characterizations of enhanced phase change materials with nanoparticles for energy storage applications

Cited by 6 publications

References 46 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

Research on NaCl-KCl High-Temperature Thermal Storage Composite Phase Change Material Based on Modified Blast Furnace Slag

Enhancing Air Conditioning System Performance via Dual Phase Change Materials Integration: Seasonal Efficiency and Capsulation Structure Impact

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