Title

Jet Impingement Heat Transfer Using A Field'S Alloy Nanoparticle - Hfe7100 Slurry

Keywords

Electronic cooling; Field's alloy; HFE7100; Jet impingement heat transfer

Abstract

An experimental study was performed to investigate jet impingement heat transfer of HFE7100 dielectric liquid with metallic phase change materials (Field's alloy) in nanometer particulate form (nano PCM). A simple method was used to prevent the precipitation of Field's alloy nanoparticles in a HFE7100 suspension by surface modification with silane monolayers. The optical transmittance of the nanoparticle suspension was monitored by a portable spectrometer and there was no significant change in optical transmittance over time. The nano PCM particle suspension impinges on a heated surface and absorbs heat by phase change process from solid to liquid phase coupled with the evaporation of HFE7100. The present study shows that the mass fraction of nanoparticles plays an insignificant role in pressure drop but an important role on heat transfer performance. The high-heat-flux removal capability has been demonstrated by repeated closed loop test. Our results show that slurries with 30% particle mass fraction can improve the average heat transfer coefficient by 70% when compared to pure HFE7100 in the temperature range of 62-66°C. © 2013 Elsevier Ltd. All rights reserved.

Publication Date

1-1-2014

Publication Title

International Journal of Heat and Mass Transfer

Volume

68

Number of Pages

357-365

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ijheatmasstransfer.2013.09.029

Socpus ID

84886012233 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84886012233

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