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

Journal of Energy Storage, Год журнала: 2024, Номер 78, С. 110110 - 110110

Опубликована: Янв. 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.

Язык: Английский

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

Renewable and Sustainable Energy Reviews, Год журнала: 2025, Номер 211, С. 115334 - 115334

Опубликована: Янв. 9, 2025

Язык: 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, Год журнала: 2025, Номер 162, С. 108573 - 108573

Опубликована: Янв. 10, 2025

Язык: 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, Год журнала: 2024, Номер 14(1)

Опубликована: Авг. 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.

Язык: 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, Год журнала: 2024, Номер 621, С. 235317 - 235317

Опубликована: Авг. 26, 2024

Язык: Английский

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Harnessing meta-heuristic, Bayesian, and search-based techniques in optimizing machine learning models for improved energy storage with microencapsulated PCMs

International Communications in Heat and Mass Transfer, Год журнала: 2025, Номер 162, С. 108537 - 108537

Опубликована: Янв. 5, 2025

Язык: 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, Год журнала: 2025, Номер 110, С. 115339 - 115339

Опубликована: Янв. 12, 2025

Язык: Английский

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

ACS Omega, Год журнала: 2025, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

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Unlocking the potential of liquid crystals as phase change materials for thermal energy storage

Energy Materials, Год журнала: 2025, Номер 5(4)

Опубликована: Янв. 23, 2025

This review paper examines the innovative use of liquid crystals (LCs) as phase change materials in thermal energy storage systems. With rising demand for efficient storage, LCs offer unique opportunities owing to their tunable transitions, high latent heat, and favorable conductivity. covers various types LCs, such nematic, smectic, cholesteric phases, roles enhancing storage. It discusses mechanisms LC transitions impact on efficiency. Strategies improve conductivities polymers have also been explored. One method involves embedding units within molecular structure promote orderly arrangement, facilitate heat flow, reduce phonon scattering. Aligning polymer chains through external fields or mechanical processes significantly improves intrinsic The inclusion thermally conductive fillers optimization filler-matrix interactions further boost performance. Challenges related scalability, cost-effectiveness, long-term stability LC-based are addressed, along with future research directions. synthesizes current knowledge identifies gaps literature, providing a valuable resource researchers engineers develop advanced technologies, contributing sustainable solutions.

Язык: Английский

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Phase Change Materials Meet Microfluidic Encapsulation

Advanced Science, Год журнала: 2023, Номер 11(37)

Опубликована: Ноя. 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.

Язык: Английский

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