Numerical investigation of various configurations of nano-enhanced latent heat thermal energy storage

Laouer, Abdelghani and Atia, Aissa and Teggar, Mohamed and Arıcı, Müslüm and Mohd Rosli, Mohd Afzanizam (2025) Numerical investigation of various configurations of nano-enhanced latent heat thermal energy storage. International Communications in Heat and Mass Transfer, 168 (109513). pp. 1-14. ISSN 0735-1933 (Submitted)

Text 01129290820251920432056.pdf Restricted to Registered users only Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (15MB)

Abstract

Design and optimization of flexible and efficient energy storage units is considered as potential for enhancing energy efficiency of thermal systems which significantly contributes to energy savings as well as mitigation of emissions. This study investigates a new configuration of the melting process of nano-enhanced phase change materials (NePCM) inside a square cavity during simultaneous charging (two horizontal heating tubes) and discharging (a central horizontal cold tube). The study investigated the performance of various tubes layouts. The Lattice Boltzmann Method is applied to solve the dimensionless governing equations of the system. Different effective parameters are analyzed, including the Rayleigh number (Ra), heating tube positions, NPs concentrations, and melting times. The findings demonstrate that both heat transfer and melting processes are significantly enhanced in all studied cases with increasing Ra and NPs concentrations. The analysis revealed that positioning the hot tubes centrally within the upper and lower sections provides the most efficient arrangement, reducing the charging time by up to 75.5 %. Furthermore, adding NPs at concentrations of 1 %, 3 %, and 5 % increases the melting rate by 3.33 %, 10.17 %, and 19.12 %, respectively, compared to the melting time without NPs. These findings offer insights for designing flexible and efficient latent heat thermal energy storage systems.

Item Type:	Article
Uncontrolled Keywords:	Tubes configuration, Lattice Boltzmann method, Melting process, Phase change material, Thermal energy storage
Divisions:	Faculty Of Mechanical Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	30 Dec 2025 03:01
Last Modified:	30 Dec 2025 03:01
URI:	http://eprints.utem.edu.my/id/eprint/29311
Statistic Details:	View Download Statistic

Actions (login required)

View Item