Effect of graphene nanoparticles on charging and discharging processes of latent thermal energy storage using horizontal cylinders

被引：0
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作者：
Benbrika, Mebrouk [1 ]
Teggar, Mohamed [1 ]
Arıcı, Müslüm [2 ]
Ismail, Kamal A.R. [3 ]
Bouabdallah, Said [1 ]
Mezaache, El-Hacène [4 ]
机构：
[1] Laboratory of Mechanics, University Amar Telidji, BP 37G, Laghouat,03000, Algeria
[2] Mechanical Engineering Department, Engineering Faculty, Kocaeli University, Kocaeli,41001, Turkey
[3] Department of Energy, School of Mechanical Engineering, University of Campinas, Sao Paulo,13083-970, Brazil
[4] Laboratory of Research on Physics and Chemistry of Surfaces and Interfaces, University of Skikda, 21000, Algeria
来源：
Sustainable Energy Technologies and Assessments | 2021年 / 45卷
关键词：
Heat transfer - Cylinders (shapes) - Heat storage - Digital storage - Storage (materials) - Phase change materials - Thermal energy - Graphene;
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摘要：
In this paper, thermal charging and discharging processes of a phase change material (PCM) dispersed with graphene nanoplatelets (GN) are investigated in a horizontal cylinder for thermal energy storage. The heat transfer and phase change processes are modeled using the enthalpy-porosity method. The momentum and energy equations are solved using a commercial code. The numerical simulations are validated by comparison with experimental and numerical data of the literature. The results showed that GN concentrations (i.e. = 0, 0.5 and 1 wt% GN) expedite the charging time while a slight reduction in melting time is obtained for = 3 wt%. The solidification time reduced by up to 50% whereas the thermal storage capacity declined by up to 14%. These results can help designing efficient thermal energy storage systems. © 2021 Elsevier Ltd
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