Thermal Science 2017 Volume 21, Issue 1 Part A, Pages: 233-242
https://doi.org/10.2298/TSCI140619026K
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Preparation and characterization of copper oxide nanoparticles and determination of enhancement in critical heat flux
Kshirsagar Jagdeep M. (Government Engineering College, Department of Mechanical Engineering, Aurangabad, India)
Shrivastava Ramakant (Government Engineering College, Department of Mechanical Engineering, Aurangabad, India)
Adwani Prakash S. (Government Engineering College, Department of Mechanical Engineering, Aurangabad, India)
The main focus of the present work is to prepare the CuO nanoparticles by
economical Sol-Gel method and further to prepare the CuO nanofluid with base
fluid as deionised water. The size of nanoparticles is determined by Debye-
Scherer formula and size of the particles is conformed 20.4054nm. Critical
heat flux characteristics of nanofluid were investigated with different
weight concentrations of CuO nanoparticles. The experimental work revealed an
increase in critical heat flux value just about 57.26 percent. Surface
roughness of heater surface is measured for all weight concentrations of
nanofluid which shows increase in Ra value up to some extent is a cause to
enhance CHF.
Keywords: nanoparticles, nanofluid, Critical Heat Flux (CHF), enhancement, deionised water