Thermally enhanced nanocomposite phase change material slurry for solar-thermal energy storage

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 78, P. 110110 - 110110

Published: Jan. 8, 2024

This paper investigates the photothermal conversion performance of an innovative heat transfer fluid containing nano-encapsulated phase chanage material (PCM) with metallic shell materials in a solar thermal energy storage system. The influences thickness, core size, type, PCM mass and volume concentrations on medium are investigated compared. results show that rates water-based Ag, Au, Cu Al nanofluids 6.89, 5.86, 7.05 6.99 W, respectively, while slurries formed by adding paraffin@Ag, nano capsules to pure water enhance 6.18, 13.38, 10.8 11.33 %, respectively. nanoparticle-based further augment temperature gains enhancing radiation capture capability medium. Specifically, depending concentration PCM, capacity paraffin@Cu slurry is augmented up 290 %. As thickness Ag particles also decreases from 8 2 nm, it augments slurry's ability for 7 enhancement dimensions capsules, however, causes surface area-to-volume ratio (SA:V) reduce clustering. Therefore, behaviour Paraffin@Cu diminished 5 % as size enhances 10 40 nm. Further, augmentation surprisingly reduces Finally, paraffin-based solid experimentally tested validation specific model at various wind speeds radiation.

Language: Английский

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A review of passive building thermal management with phase-change materials

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 211, P. 115334 - 115334

Published: Jan. 9, 2025

Language: Английский

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Heat transfer enhancement of phase change materials using tree shaped fins: A comprehensive review

International Communications in Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 162, P. 108573 - 108573

Published: Jan. 10, 2025

Language: Английский

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Phase Change Materials for Cold Thermal Energy Storage applications: A critical review of conventional materials and the potential of bio-based alternatives

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 110, P. 115339 - 115339

Published: Jan. 12, 2025

Language: Английский

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Energy-Efficient Insulating Geopolymer Foams with the Addition of Phase Change Materials

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

This study assessed the impact of addition phase change materials (PCMs) under trade name Micronal 28S on properties manufactured geopolymer foams. is used as a functional component in foams (insulation materials), foamed building materials, and for temperature regulation to improve thermal comfort indoor climate. The melting point 28 ± 2 °C, heat fusion ∼140 J/g. As part research, mixtures containing PCMs form slurry were prepared shares 0, 5, 10, 15 wt %. Geopolymers produced based fly ash. foaming process was carried out using hydrogen peroxide (H2O2). Physical, mechanical, analysis microscopic microstructure evaluated. introduction into matrix conducive obtaining ultralight with density about 200 kg/m3. share PCM increases, insulating samples increase by reaching conductivity coefficient λ 0.057 W/m*K. Simultaneously, specific increases up 1.105 kJ/kg*K. Microstructure confirmed that tends agglomerate decrease pore size. material reduces mechanical geopolymers. However, according EN 998-1 standard, conditions requirements be realized construction met reference sample one 5 % 28S. content this publication addresses issues both science engineering. Although other authors have conducted research various work first use produce excellent insulation properties.

Language: Английский

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Optimizing Gaussian process regression (GPR) hyperparameters with three metaheuristic algorithms for viscosity prediction of suspensions containing microencapsulated PCMs

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 31, 2024

Abstract Suspensions containing microencapsulated phase change materials (MPCMs) play a crucial role in thermal energy storage (TES) systems and have applications building materials, textiles, cooling systems. This study focuses on accurately predicting the dynamic viscosity, critical thermophysical property, of suspensions MPCMs MXene particles using Gaussian process regression (GPR). Twelve hyperparameters (HPs) GPR are analyzed separately classified into three groups based their importance. Three metaheuristic algorithms, namely genetic algorithm (GA), particle swarm optimization (PSO), marine predators (MPA), employed to optimize HPs. Optimizing four most significant (covariance function, basis standardization, sigma) within first group any algorithms resulted excellent outcomes. All achieved reasonable R-value (0.9983), demonstrating effectiveness this context. The second explored impact including additional, moderate-significant HPs, such as fit method, predict method optimizer. While resulting models showed some improvement over group, PSO-based model exhibited noteworthy enhancement, achieving higher (0.99834). Finally, third was examine potential interactions between all twelve comprehensive approach, employing GA, yielded an optimized with highest level target compliance, reflected by impressive 0.999224. developed cost-effective efficient solution reduce laboratory costs for various systems, from TES management.

Language: Английский

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Active and hybrid battery thermal management system using microchannels, and phase change materials for efficient energy storage

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 621, P. 235317 - 235317

Published: Aug. 26, 2024

Language: Английский

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A review of the performance and application of molten salt-based phase change materials in sustainable thermal energy storage at medium and high temperatures

Applied Energy, Journal Year: 2025, Volume and Issue: 389, P. 125766 - 125766

Published: March 26, 2025

Language: Английский

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A Novel Photovoltaic/Thermal (PVT) System Using Nano-Enhanced Micro-Encapsulated PCM Slurry for Steam Production: A Numerical Study

International Journal of Thermofluids, Journal Year: 2025, Volume and Issue: unknown, P. 101180 - 101180

Published: March 1, 2025

Language: Английский

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Phase Change Materials Meet Microfluidic Encapsulation

Advanced Science, Journal Year: 2023, Volume and Issue: 11(37)

Published: Nov. 14, 2023

Improving the utilization of thermal energy is crucial in world nowadays due to high levels consumption. One way achieve this use phase change materials (PCMs) as storage media, which can be used regulate temperature or provide heating/cooling various applications. However, PCMs have limitations like low conductivity, leakage, and corrosion. To overcome these challenges, are encapsulated into microencapsulated (MEPCMs) capsules/fibers. This encapsulation prevents from leakage corrosion issues, microcapsules/fibers act conduits for heat transfer, enabling efficient exchange between PCM its surroundings. Microfluidics-based MEPCMs attracted intensive attention over past decade exquisite control flow conditions size microcapsules. review paper aims an overview state-of-art progress microfluidics-based PCMs. The principle method preparing MEPCM capsules/fibers using microfluidic technology elaborated, followed by analysis their microstructure characteristics. Meanwhile, applications fields building conservation, textiles, military aviation, solar utilization, bioengineering summarized. Finally, perspectives on discussed.

Language: Английский

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