Pressure-Induced Assembly of Organic Phase-Change Materials Hybridized with Expanded Graphite and Carbon Nanotubes for Direct Solar Thermal Harvesting and Thermoelectric Conversion DOI Creative Commons
Jie Ji, Yang Liu,

Xiaoxiang Li

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(24), P. 2047 - 2047

Published: Dec. 21, 2024

Direct harvesting of abundant solar thermal energy within organic phase-change materials (PCMs) has emerged as a promising way to overcome the intermittency renewable and pursue high-efficiency heating-related applications. Organic PCMs, however, generally suffer from several common shortcomings including melting-induced leakage, poor absorption, low conductivity. Compounding PCMs with single-component carbon faces difficulty in achieving optimized comprehensive performance enhancement. Herein, this work reports employment hybrid expanded graphite (EG) nanotubes (CNTs) simultaneously realize leakage-proofness, high absorptance, conductivity, large latent heat storage capacity. The PCM composites were prepared by directly mixing commercial high-temperature paraffin (HPA) powders, EG, CNTs, followed subsequent mechanical compression molding. HPA-EG loaded 20 wt% EG could effectively suppress leakage. After further compounding 1 form-stable HPA-EG20-CNT1 achieved an axial in-plane conductivity 4.15 W/m K 18.22 K, melting enthalpy 165.4 J/g, respectively. Through increasing loading CNTs 10 top thin layer, we double-layer HPA-EG-CNT composites, which have surface absorptance 92.9% for direct conversion concentrated illumination into storable heat. charged be combined thermoelectric generator release stored generate electricity, power up small electric devices such light-emitting diodes. This demonstrates potential employing fillers optimize thermophysical properties performances PCMs.

Language: Английский

Enhanced thermal stability of eutectic PCMs via microencapsulation: Inverse emulsion polymerization with silica shells DOI

Masoumeh Parsamanesh,

Shahla Shekarriz, Majid Montazer

et al.

Thermal Science and Engineering Progress, Journal Year: 2025, Volume and Issue: unknown, P. 103420 - 103420

Published: Feb. 1, 2025

Language: Английский

Citations

4
Optimizing the Design of TES Tanks for Thermal Energy Storage Applications Through an Integrated Biomimetic-Genetic Algorithm Approach DOI Creative Commons
Nadiya Mehraj, Carles Mateu, Gabriel Zsembinszki

et al.

Biomimetics, Journal Year: 2025, Volume and Issue: 10(4), P. 197 - 197

Published: March 24, 2025

Building upon an experimentally validated bio-inspired thermal energy storage (TES) tank design, this study introduced a novel computational framework that integrated genetic algorithms (GA) with biomimetic principles to systematically generate TES geometries. Inspired by natural distribution patterns found in vascular networks, the AI-driven methodology explored 13 geometric parameters, focusing on branching structures and spatial distribution, resulted computationally generated designs 29% increase heat transfer surface area while maintaining manufacturability constraints within fixed diameter of 150 mm height 155 mm. Unlike previous studies relied predefined configurations, approach developed dimensional constraints, ensuring relevance allowing for broader structural exploration. The resulting exhibited key characteristics high-efficiency configurations providing systematic, scalable architecture. This represented first step integrating biomimicry into establishing structured generating high-performance, manufacturable configurations. While current work focused future research will emphasize experimental validation real-world implementation confirm practical benefits these AI-generated designs. By bridging gap between intelligence nature-inspired engineering, provided pathway developing more efficient, manufacturable, sustainable solutions applications.

Language: Английский

Citations

1
Experimental study of solar thermal energy storage finned tanks filled with different storage materials (PCM, gravel, and water) DOI Creative Commons

Waleed Khalaf Jabbar,

Ahmed K. Alshara,

Asiem Sahib Allawy

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105041 - 105041

Published: April 1, 2025

Language: Английский

Citations

0
Advanced nano-graphite-infused salt-hydrated phase change materials derived from recycled waste for enhancing thermal energy storage with exceptional thermal stability DOI
Aman Yadav,

Mahendran Samykano,

A.K. Pandey

et al.

Thermal Science and Engineering Progress, Journal Year: 2025, Volume and Issue: unknown, P. 103621 - 103621

Published: May 1, 2025

Language: Английский

Citations

0
Review on Influence of Organic and Inorganic Phase Change Materials on Performance of Asphalt Binder and Asphalt Mix DOI
Aniket Kataware, Abhinag Shantharam

International Journal of Pavement Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Language: Английский

Citations

0
Advancements in Phase Change Materials: Stabilization Techniques and Applications DOI
Soumen Mandal

Prabha Materials Science Letters, Journal Year: 2024, Volume and Issue: 3(2), P. 254 - 267

Published: Aug. 14, 2024

Phase Change Materials (PCMs) are innovative materials that absorb and release thermal energy during phase transitions, making them ideal for storage applications. This paper provides a comprehensive overview of PCMs, focusing on their functioning mechanisms, classifications, shape stabilization methods. PCMs operate by storing latent heat melting releasing it upon solidification, thereby maintaining stable temperature changes. They classified into three main categories: organic, inorganic, eutectic. Organic such as paraffins fatty acids, offer high but suffer from low conductivity. Inorganic including salt hydrates metals, provide better conductivity face challenges like supercooling corrosiveness. Eutectic which mixtures compounds, customizable points enhanced properties. To address leakage improve conductivity, methods employed, encapsulation, porous matrix, polymer hybridized stabilization. These techniques enhance the structural integrity performance more suitable practical The highlights potential to efficiency outlines future research directions optimizing in various industries.

Language: Английский

Citations

1
Design and development of solar systems for regeneration and thermal compression of adsorbed natural gas DOI

Anupam Chaudhary,

Satyabrata Sahoo

International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 161, P. 108464 - 108464

Published: Dec. 9, 2024

Language: Английский

Citations

0
Pressure-Induced Assembly of Organic Phase-Change Materials Hybridized with Expanded Graphite and Carbon Nanotubes for Direct Solar Thermal Harvesting and Thermoelectric Conversion DOI Creative Commons
Jie Ji, Yang Liu,

Xiaoxiang Li

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(24), P. 2047 - 2047

Published: Dec. 21, 2024

Direct harvesting of abundant solar thermal energy within organic phase-change materials (PCMs) has emerged as a promising way to overcome the intermittency renewable and pursue high-efficiency heating-related applications. Organic PCMs, however, generally suffer from several common shortcomings including melting-induced leakage, poor absorption, low conductivity. Compounding PCMs with single-component carbon faces difficulty in achieving optimized comprehensive performance enhancement. Herein, this work reports employment hybrid expanded graphite (EG) nanotubes (CNTs) simultaneously realize leakage-proofness, high absorptance, conductivity, large latent heat storage capacity. The PCM composites were prepared by directly mixing commercial high-temperature paraffin (HPA) powders, EG, CNTs, followed subsequent mechanical compression molding. HPA-EG loaded 20 wt% EG could effectively suppress leakage. After further compounding 1 form-stable HPA-EG20-CNT1 achieved an axial in-plane conductivity 4.15 W/m K 18.22 K, melting enthalpy 165.4 J/g, respectively. Through increasing loading CNTs 10 top thin layer, we double-layer HPA-EG-CNT composites, which have surface absorptance 92.9% for direct conversion concentrated illumination into storable heat. charged be combined thermoelectric generator release stored generate electricity, power up small electric devices such light-emitting diodes. This demonstrates potential employing fillers optimize thermophysical properties performances PCMs.

Language: Английский

Citations

0