Optically functional bio-based phase change material nanocapsules for highly efficient conversion of sunlight to heat and thermal storage

Energy, Journal Year: 2024, Volume and Issue: 305, P. 132290 - 132290

Published: July 2, 2024

Conversion of sunlight to heat and the subsequent thermal storage by nanoencapsulated bio-based phase change material slurries (NBPCMSs) in a low temperature solar system is investigated. The influences capsule size, shell material, tilt angle, flux, PCM mass concentration, nanoparticle its concentration are explored. results reveal that useful gain capacity nano-enhanced coconut oil/Ag, oil/Au, oil/Al, oil/Cu based respectively 3.02, 3.12, 2.7, 3.14 times better than pure water, due an enhanced interaction light with functional nanocapsules. Consequently, energy reported be 8.85, 9.29, 7.41, 9.19 higher. increment from 5 20 % addition blended nanoparticles further augment capacity. Specifically, oil/Au slurry improved up 74.4 when coconout oil used as core material. improvements Cu Ag enhance 4.04 4.87 %, respectively, insertion Au at volume fraction 25 ppm. Augmenting core/shell confinement on other hand, diminishes surface area ratio, allowing agglomeration structures inside slurry. performance decreases inclination angle cavity increases 0° 60°, reducing buoyancy force particles' collision. Further, since Al particles have optical characteristics conductivity, oil/Al lowest level. Finally, experiment conducted validate specific model prediction under various wind speeds, 1 4 m/s, illuminations, 400 1000 W/m2.

Language: Английский

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Radiation and nanoparticle interaction for enhanced light absorption and heat conversion

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 411, P. 125702 - 125702

Published: Aug. 5, 2024

The photo-thermal conversion performance (PTCP) of water-based nanofluids in a volumetrically heated solar collector (VHSC) is evaluated. influences nanoparticle volume concentration (NVC), particle size, Reynolds number, operating temperature, and geometry on the PTCP are numerically investigated. utilization nanoparticles improving their found to enhance efficiency (PTCE) by augmenting energy from sun working fluid due radiation-nanoparticle interactions. PTCE enhancement Graphite, TiO2 Ag dispersed water respectively 1.37, 1.33 1.29 times better, compared that water. This further augmented adding MgO TiO2, Graphite particles, resulting 1.69, 1.67 1.59x improved efficiency. Enhancing flow rate fluids also contributes reducing losses thermal ambient. Besides, enhanced size increases overall as it enables nanofluid absorb more energy. length accelerates loss ambient, result system diminishes. It regarded heat absorption declines with inlet temperature fluid.

Language: Английский

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Thermal performance of nano-architected phase change energetic materials for a next-generation solar harvesting system

Energy Conversion and Management, Journal Year: 2025, Volume and Issue: 327, P. 119541 - 119541

Published: Jan. 24, 2025

Language: Английский

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Examining the performance of optically optimized solar stills with phase change materials: A theoretical perspective on ongoing debates

Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 282, P. 113394 - 113394

Published: Jan. 12, 2025

Language: Английский

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A comprehensive study to optimize organic/inorganic ETL and HTL materials on double perovskite layer Cs2AgBiBr6 solar cells with SCAPS 1D simulator

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104044 - 104044

Published: Jan. 1, 2025

Language: Английский

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Assessing the Energy Footprint of Desalination Technologies and Minimal/Zero Liquid Discharge (MLD/ZLD) Systems for Sustainable Water Protection via Renewable Energy Integration

Energies, Journal Year: 2025, Volume and Issue: 18(4), P. 962 - 962

Published: Feb. 17, 2025

Water scarcity necessitates desalination technologies, yet their high energy demands and brine disposal challenges hinder sustainability. This research study evaluates the footprint carbon emissions of thermal- membrane-based alongside Minimal/Zero Liquid Discharge (MLD/ZLD) frameworks, with a focus on renewable source (RES) integration. Data revealed stark contrasts: thermal-based technologies like osmotic evaporation (OE) crystallizers (BCr) exhibit intensities 80–100 kWh/m3 52–70 kWh/m3, respectively, coal-powered footprints reaching 72–100 kg CO2/m3. Membrane-based such as reverse osmosis (RO) (2–6 kWh/m3) forward (FO) (0.8–13 kWh/m3), demonstrate lower (1.8–11.7 CO2/m3 under coal). Transitioning to RES reduces by 90–95%, exemplified energy-powered RO (0.1–0.3 CO2/m3). However, scalability barriers persist, including capital costs, intermittency, technological immaturity in emerging systems osmotically assisted (OARO) membrane distillation (MD). highlights RES-driven MLD/ZLD pivotal for aligning global climate targets, urging innovations storage, material robustness, circular economy models secure water resource resilience.

Language: Английский

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Thermal integration of direct-indirect thermochemical reactors and charging-discharging thermal management strategies for solar thermal storage systems

Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 284, P. 113485 - 113485

Published: Feb. 12, 2025

Language: Английский

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A Complete Review of Augmenting Solar Desalination Efficiency with PCMs

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104421 - 104421

Published: Feb. 1, 2025

Language: Английский

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Light- and electro-driven phase change materials derived from activated porous biochar nanosheets and encapsulated polyethylene glycol

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 690, P. 133783 - 133783

Published: March 20, 2024

Language: Английский

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Forecasting Global Sustainable Energy from Renewable Sources Using Random Forest Algorithm

Results in Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 103789 - 103789

Published: Dec. 1, 2024

Language: Английский

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