Numerical analysis of a solar thermal energy storage tank filled with phase change material under three fin arrangements

被引：0
|
作者：
Jabbar, Waleed Khalaf [1 ,2 ]
Alshara, Ahmed Kadhim [3 ]
Allawy, Asim Sahib [1 ]
机构：
[1] Department of Thermal Engineering, Engineering Technical College- Baghdad, Middle Technical University, Baghdad, Iraq
[2] Electromechanical Engineering Department, Engineering Technical College in Misan, Southern Technical University, Basra, Iraq
[3] Department of Mechanical Engineering, College of Engineering, University of Misan, Misan, Al Amarah city, Iraq
来源：
International Journal of Thermofluids | 2024年 / 24卷
关键词：
Phase change materials have been recently introduced as key thermal energy storage (TES) medium in several thermal applications; specifically in solar thermal energy systems. The thermal performance of three TES systems is investigated numerically. Stainless steel 304 was used to construct the storage units; and paraffin wax served as the latent TES material. Simulations were performed on TES systems with identical dimensions and different fin numbers (i.e. 10; 20 and 29). Under the weather conditions of Al Amarah; a city in Iraq; the simulations used heat transfer fluid at a constant flow rate of 1 L/h and a velocity of 0.001 m/s. Results showed that the tanks yielded volumetric heat capacities of 9702.89; 14727.97 and 21789.07 kJ/m³.K at 10; 20; and; 29; fins; respectively; Moreover; the maximum latent heat distribution ranged from 10.39 to 23.01 J/kg.K; indicating remarkable energy contribution. The TES system with 29 fins showed the fastest charging and discharging times; attributed to the optimised heat transfer paths between fins; thus making it ideal for high-demand applications. © 2024;
D O I：
10.1016/j.ijft.2024.100965
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