Experimental investigations on thermophysical properties of nano-enhanced phase change materials for thermal energy storage applications

Alexandria Engineering Journal

Sofiene Mellouli¹  Gaber A. El Awadi¹  Talal Alqahtani²  Salem Algarni²  Raja Elarem³  Lioua Kolsi⁴ 

[1] College of Engineering, Mechanical Engineering Department, Jazan University, Jazan, Saudi Arabia;College of Engineering, Mechanical Engineering Department, King Khalid University, Abha, Saudi Arabia;Laboratory of Thermal and Energetic Systems Studies (LESTE) at the National School of Engineering of Monastir, University of Monastir, Tunisia;Mechanical Engineering Department, College of Engineering, Ha’il University, Ha’il City, Saudi Arabia;

关键词: Thermal energy storage;    PCM;    Nanofibers;    Nanocomposite, DSC (Differential Scanning Calorimetry);   

DOI  :  

来源: DOAJ

【 摘 要 】

Thermophysical properties such as latent heat, viscosity and melting temperature could be changed for different physical properties of dispersed nanoparticle such as size, shape, and concentration. In this study, Nanocomposites-Enhanced Phase Change Materials NePCM are formed by dispersing Aluminium (Al) and Copper (Cu) nanoparticles into paraffin wax in various mass fractions (0.1, 0.3, 0.6, 1, 2.5 and 5%). The impact on the thermophysical properties of paraffin wax by the nanoparticles is also investigated. Heat conduction and differential scanning calorimeter experiments are used to investigate the effects of different nanoparticle concentrations on the melting point, solidification point, and latent capacity of nanocomposites. Experimental results show that the dispersion of nanoparticles of Al and Cu can decrease the melting temperature and increase the solidification temperature of PCM. this dispersion could also be limited due to increase in dynamic viscosity of the NePCM. Furthermore, Al and Cu nanocomposites with mass fractions of 2% and 1%, respectively, show better enhancements in the thermal storage characteristics of the paraffin compared to the next higher mass fraction.

【 授权许可】

Unknown