An experimental investigation into the melting of phase change material using Fe3O4 magnetic nanoparticles under magnetic field

The low thermal conductivity of phase change materials has resulted in prolonged melting and freezing processes (charge and discharge) in these materials. This problem has limited the application of these materials in the field of thermal energy storage. In the present study, the effects of adding F...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2021-10, Vol.146 (1), p.381-392
Main Authors: Sadegh, Sina Safaee, Aghababaei, Ali, Mohammadi, Omid, Mosleh, Hassan Jafari, Shafii, Mohammad Behshad, Ahmadi, Mohammad Hossein
Format: Article
Language:English
Subjects:
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Energy storage
Freezing
Heat conductivity
Heat flux
Heat transfer
Horizontal orientation
Inorganic Chemistry
Iron oxides
Magnetic fields
Measurement Science and Instrumentation
Melting
Nanoparticles
Paraffins
Phase change materials
Physical Chemistry
Polymer Sciences
Thermal conductivity
Thermal energy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The low thermal conductivity of phase change materials has resulted in prolonged melting and freezing processes (charge and discharge) in these materials. This problem has limited the application of these materials in the field of thermal energy storage. In the present study, the effects of adding Fe 3 O 4 magnetic nanoparticles at various concentrations as well as applying the magnetic field on the melting process of paraffin as phase change material have been experimentally studied. Thereupon, a cubic chamber in which the left wall applied a constant heat flux was used. At the optimum concentration of nanoparticles (1 mass%), the constant magnetic field with the intensities of 0.01 T and 0.02 T was applied and compared with the case of without field. It was inferred that using Fe 3 O 4 magnetic nanoparticles, due to the increment of thermal conductivity, leads to a decrease in the temperature gradient in the horizontal direction and thus a decrease in melting time. Moreover, applying the magnetic field, due to the formation of high conductive clusters of nanoparticles, reduced the melting time and improved the heat transfer in paraffin. By using an optimum concentration of nanoparticles (1 mass%), in the absence and presence of the magnetic field, melting time is reduced by 8% and 12%, approximately.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-020-09958-4