NDLI: Enhanced Heat Transfer Through the Use of Nanofluids in Forced Convection

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Daniel, J. Faulkner David, R. Rector Justin, J. Davidson Shekarriz, Reza
Copyright Year	2004
Abstract	Much attention has been paid in recent years to the use of nanoparticle suspensions for enhanced heat transfer. The majority of this work has focused on the thermal conductivity of these nanofluids, which can be as much as 2.5 times higher than that of the plain base fluid. The present work moves beyond measurements of non-flowing liquids, to explore the role that nanofluids can play in enhancing convective heat transfer within microscale channels. A unique pseudo-turbulent flow regime is postulated, which simulates turbulent behavior at very low Reynolds numbers, in what are nominally laminar flows. The resulting fluid mixing has the potential to raise the average convective heat transfer coefficient within the channel. Numerical modeling, using the lattice Boltzmann method, confirms the existence of the pseudo-turbulent flow regime. Finally, experimental results are presented which demonstrate a significant heat transfer enhancement when using nanofluids in forced convection. The current results are especially relevant to microchannel heatsinks, where the low Reynolds numbers impose limitations on the maximum Nusselt number achievable.
Sponsorship	Heat Transfer Division
Starting Page	219
Ending Page	224
Page Count	6
File Format	PDF
ISBN	079184711X
DOI	10.1115/IMECE2004-62147
Volume Number	Heat Transfer, Volume 3
Conference Proceedings	ASME 2004 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2004-11-13
Publisher Place	Anaheim, California, USA
Access Restriction	Subscribed
Subject Keyword	Forced convection Turbulence Computer simulation Microscale devices Reynolds number Nanofluids Lattice boltzmann methods Flow (dynamics) Convection Microchannels Nanoparticles Fluids Laminar flow Thermal conductivity Heat transfer
Content Type	Text
Resource Type	Article

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