NDLI: A Study of the Thermal-Hydraulic Performance and System-Level Effects of Aluminum Oxide-Propanol Nanofluid

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Andrew, D. Sommers Kirk, L. Yerkes Augusta, R. Runyon
Copyright Year	2010
Abstract	The application of nanofluids in real systems could lead to smaller, more compact heat exchangers and reductions in material cost. However, few studies have been conducted which have carefully measured the thermo-physical properties and thermal performance of these fluids as well as examine the system-level effects of using these fluids in traditional cooling systems. In this work, dilute suspensions of 10 nm aluminum oxide nanoparticles in propanol (0.5 wt%, 1 wt%, and 3 wt%) were investigated. Changes in density, specific heat, and thermal conductivity with particle concentration were measured and found to be linear whereas changes in viscosity were nonlinear and increased sharply with particle loading. Nanofluid heat transfer performance data were generally commensurate with that measured for the baseline. For the 1 wt% concentration, a small but significant enhancement in the heat transfer coefficient was recorded for 1800 < Re > 2800 which is attributed to an earlier transition to turbulent flow. In the case of high particle loading (i.e. 3 wt%), the thermal performance was observed to deteriorate with respect to the baseline case. Discoloration of the fluid was also observed after being cycled at high flow rates and increased temperature.
Sponsorship	Heat Transfer Division
Starting Page	631
Ending Page	639
Page Count	9
File Format	PDF
ISBN	9780791849415
DOI	10.1115/IHTC14-22931
e-ISBN	9780791838792
Volume Number	2010 14th International Heat Transfer Conference, Volume 6
Conference Proceedings	2010 14th International Heat Transfer Conference
Language	English
Publisher Date	2010-08-08
Publisher Place	Washington, DC, USA
Access Restriction	Subscribed
Subject Keyword	Viscosity Temperature Turbulence Aluminum Nanofluids Cooling systems Heat exchangers Density Flow (dynamics) Nanoparticles Specific heat Fluids Particulate matter Thermal conductivity Heat transfer coefficients Heat transfer
Content Type	Text
Resource Type	Article

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