Ferrofluidic plug flow heat transfer enhancement

GAN JIA GUI, N, Stanley, C, Nguyen, N and Rosengarten, G 2018, 'Ferrofluidic plug flow heat transfer enhancement', International Journal of Computational Methods and Experimental Measurements, vol. 6, no. 2, pp. 291-302.


Document type: Journal Article
Collection: Journal Articles

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Title Ferrofluidic plug flow heat transfer enhancement
Author(s) GAN JIA GUI, N
Stanley, C
Nguyen, N
Rosengarten, G
Year 2018
Journal name International Journal of Computational Methods and Experimental Measurements
Volume number 6
Issue number 2
Start page 291
End page 302
Total pages 12
Publisher WIT Press
Abstract Overheating of power electronic devices has become a significant issue due to their continued miniaturization and increased heat flux that needs to be dissipated. Microchannel heat sinks utilising two-phase flow are capable of very high heat transfer rates and represent a possible means of cooling such devices. In this paper, we focus on two-phase liquid-liquid plug flow using water-based ferrofluid (magnetic nanofluid) plugs as the dispersed phase and silicone oil as the continuous phase. An external magnetic field was applied to generate enhanced mixing of the microfluidic flow. We show that material properties of the ferrofluid plug influences heat transfer properties of the microfluidic flow, and demonstrate that cooling performance is further enhanced by the application of an external magnetic field which induces mixing. We also show that microchannel heat transfer using a ferrofluid is superior to that using de-ionized water as the dispersed phase for two-phase liquid-liquid plug flow.
Subject Heat and Mass Transfer Operations
Keyword(s) Ferrofluid
Magnetic Field
Heat Transfer
Two-Phase
Microfluidic
Electronics Cooling
Copyright notice © 2018 WIT Press, www.witpress.com
ISSN 2046-0554
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