(109g) Enhancement of Thermal Transport in Water and Ethylene Glycol Using Al2o3 Nanoparticles | AIChE

(109g) Enhancement of Thermal Transport in Water and Ethylene Glycol Using Al2o3 Nanoparticles

Authors 

Ascic, M. - Presenter, Construction Engineering Research Laboratory (CERL)
Hays, A. - Presenter, Construction Engineering Research Laboratory (CERL)
Marsh, C. P. - Presenter, U.S. Army Engineer Research and Development Center
Kessler, D. - Presenter, Construction Engineering Research Laboratory (CERL)
Crowley, E. - Presenter, Construction Engineering Research Laboratory (CERL)
Jones, B. G. - Presenter, University of Illinois
Alvarado, J. - Presenter, Texas A&M University
Tangtragulwon, P. - Presenter, Texas A&M University


Current research demonstrates a significant increase in the thermal conductivity of suspensions containing small volume fractions (<5%) of metal or metal oxide nanoparticles compared with the base liquids alone. Due to incomplete discussion of sample preparation and characterization in a significant portion of literature to date, there is some ambiguity in what the published data actually represents. This paper provides thermal conductivity measurements for two types of nanofluids, Al203-deionized water and Al203-ethylene glycol, with a well described sample preparation method. The nanofluids were loaded at 2% by volume with 44 nm Al203 nanoparticles. Thermal conductivity values were measured using the transient hot wire (THW) method, the nanoparticle size was obtained by small angle X-ray scattering (SAXS), and the morphology was determined by transmission electron microscopy (TEM).

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