Frequency-Dependent Influence of Applied Magnetic Fields on Heat Exchange in Ferrofluid-based Thermal System

Kanikdeep Flora; Himanshu Patel

doi:10.3740/MRSK.2025.35.6.203

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2025 Vol.35, Issue 6 Next Page

Research Paper

Frequency-Dependent Influence of Applied Magnetic Fields on Heat Exchange in Ferrofluid-based Thermal System

27 June 2025. pp. 203-210

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Abstract

Magnetic nanoparticles in nanofluid have a unique ability in that they can be influenced by an external magnetic field, making them a promising heat-exchanging fluid to meet the demands of highly efficient thermal systems. The parametric impact of the magnetic field (static and time-varying) on the heat exchanging rate of Fe₃O₄ nanoparticles and water-based ferrofluid was investigated in this study. The experimental setup for generating a variable frequency magnetic field and analyzing the thermal behavior of ferrofluid is presented. Temperature data was obtained as heat is transferred from heated water to the ferrofluid used as a coolant. An enhancement of the heat transfer of the magnetic nanofluid was observed when varying the magnetic field frequency, through experimental analysis. The concentration of Fe₃O₄ nanoparticles in the ferrofluid was varied (0.5 wt%, 1 wt%)to study the impact of nanoparticle loading on heat transfer. An alternative approach for controlling the heat exchange rate in thermal systems is proposed, utilizing the magnetic tunability of the ferrofluid.

Keywords

ferrofluid

heat transfer

alternating magnetic field

field frequency variation

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 35
No :6
Pages :203-210
Received Date : 2025-03-07
Revised Date : 2025-05-03
Accepted Date : 2025-05-10
DOI :https://doi.org/10.3740/MRSK.2025.35.6.203

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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