期刊
EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷 35, 期 8, 页码 1535-1543出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2011.07.004
关键词
Nanofluid; Nanoparticles; Viscosity; Transfers of convective heat; Exchanger of heat plates; Pressure drop; Experimental
The objective of this study is to compare experimentally the thermal performances of two types of commercial nanofluids. The first is composed of oxides of alumina (gamma Al(2)O(3)) dispersed in water and the second one is aqueous suspensions of nanotubes of carbons (CNTs). The viscosity of the nanofluids is measured as a function of the temperature between 2 and 10 degrees C. An experimental device, containing three thermal buckles controlled in temperature and greatly instrumented permits to study the thermal convective transfers. The evolution of the convective coefficient permits to study the convective thermal transfers. The evolution of the convective coefficient is presented according to the Reynolds number, at low temperature from 0 to 10 degrees C and for the two aforementioned nanofluids. An assessment of the pressure drops in the circuit as well as of the powers of the circulator and outputs is dealt with. (C) 2011 Elsevier Inc. All rights reserved.
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