Title :

Thermal performance of PEG-MWCNTs composites as shape-stabilised phase change materials for thermal energy storage

Author(s) :

Harmen, Yasser [Auteur]
Université Ibn Tofaïl [UIT]

Chhiti, Younes [Auteur]
Université Ibn Tofaïl [UIT]

M’Hamdi Alaoui, Fatima Ezzahrae [Auteur]
Université Chouaib Doukkali [UCD]

Bentiss, Fouad [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Université Chouaib Doukkali [UCD]
Jama, Charafeddine [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Duquesne, Sophie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bensitel, Mohammed [Auteur]
Université Chouaib Doukkali [UCD]

Journal title :

Fullerenes, Nanotubes and Carbon Nanostructures

Abbreviated title :

Fullerenes, Nanotubes and Carbon Nanostructures

Pages :

1-8

Publisher :

Informa UK Limited

Publication date :

2021-02-17

English keyword(s) :

Thermal energy storage
phase change materials (PCM)
shape-stabilised composite
polyethylene glycol (PEG)
multi-walled carbon nanotubes (MWCNTs)

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

The development of phase change materials (PCM) for thermal energy storage is a promising technology. However, the liquid PCM leaks and low thermal conductivity limit the practical PCM applications. This article aims to ...
Show more >The development of phase change materials (PCM) for thermal energy storage is a promising technology. However, the liquid PCM leaks and low thermal conductivity limit the practical PCM applications. This article aims to solve these problems; it presents the preparation and thermal characterisation of PCM enhanced by carbon-based nanoparticles. The polyethene glycol 6000 (PEG 6000) is used as PCM and multi-walled carbon nanotubes (MWCNTs) as a shell matrix and thermal conductivity enhancer. The sample was prepared by the sonification method under vacuum conditions. Fourier transform infra-red spectroscopy (FT-IR) and thermo-gravimetric analysis (TGA) tested the chemical and thermal compatibility of the prepared samples. The storage performances are tested by modulated differential scanning calorimetry characterisation. The nano-enhanced-PCM (NPCM) with 1 wt% MWCNTs showed excellent shape stability without any liquid leakage when the temperature was about 110 °C for 30 minutes. Drying method has a significant effect on the thermal storage capacity of the NPCM. The melting, solidification points and the latent heats of the NPCM were measured as 61.75, 35.50 °C, and 174.24, 167.84 J g−1, respectively. Meanwhile, the specific heat is 2.63 J g−1°C−1 for the solid-state and 2.14 J g−1°C−1 for the liquid-state. The thermal conductivity of pristine PEG was improved by 49%.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2021-02-19T18:21:38Z
2021-02-23T14:13:57Z