THERMAL SCIENCE

International Scientific Journal

Jagdeep M. Kshirsagar

,

Ramakant Shrivastava

,

Prakash S. Adwani

PREPARATION AND CHARACTERIZATION OF COPPER OXIDE NANOPARTICLES AND DETERMINATION OF ENHANCEMENT IN CRITICAL HEAT FLUX

ABSTRACT
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
PAPER SUBMITTED: 2014-06-19
PAPER REVISED: 2014-10-20
PAPER ACCEPTED: 2015-01-18
PUBLISHED ONLINE: 2015-03-08
DOI REFERENCE: https://doi.org/10.2298/TSCI140619026K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Issue 1, PAGES [233 - 242]
REFERENCES
  1. . Chon C.H., K.D.Kihm, ‘‘Thermal Conductivity Enhancement of Nanofluid by Browian Motion'' ASME Journal Heat Transfer 12 2005 pp 810
  2. .Das S.K, Putra N.,Thiesen P., Roetzel w., ‘‘Temperature Dependence of thermal conductivity enhancement for nanofluids'' ASME Journal Heat Transfer 125 2003 PP 567
  3. M. Nagaraju, K. Mukkanti, R. BuchiReddy, Y. Aparna, NCONSEA (National Conference on Nano science and nano engineering application), op025, 31(2012)
  4. . Y.Aparna, K.Venkateswara Rao, P. Srinivasa Subbarao, ‘‘Preparation and Characterization of CuO Nanoparticles by Novel Sol-Gel Technique''Journal of Nano and Electronic Physics 4 2012 pp 3005(1-4)
  5. . Wen D, Ding Y, ‘‘Experimental investigation into the pool boiling heat transfer of aqueous based C-alumina nanofluids, Journal nanoparticle Res.7, 2005 pp.265-274.
  6. . S.K.Das ,Putra,N.,Roetzel,W., Pool boiling characteristics of nanofluids .international journal of Heat and Mass Transfer 46, 2003 pp 851-862
  7. . Holman J.P.Experimental methods for engineer's,7thed.Chap3,McGraw-Hill,New York (2007).
  8. . Kim H.,J.kim, M Kim, ‘‘Experimental study on CHF characteristics of water-TiO2 nanofluids'' Nucl. Eng.Technol.38 (1) 2006 pp 61-69
  9. . KimS.J, I.C.Bang, J.Buongiorno,L.W.Hu, ‘‘ Surface wettability changes during pool boiling of nanofluids and its effect on critical heat flux'' International Journal of Heat Mass Transfer 50 2007 pp 4105-4116.
  10. .HegdeRamakrishnaN. Shrikantha S.Rao,R.P.Reddy.‘‘Experimental studies on CHF enhancement in pool boiling with CuO- water nanofluid''Heat and Mass Transfer48 2012 pp 1031-1041
  11. . Liu Z.H., QiuY.H. ‘‘Boiling heat transfer characteristics of nanofluids jet impingement on a plate surface'' Journal Heat Mass Transfer 43 2007 pp 699-706
  12. . Kang M.G., ‘‘Effect of surface roughness on pool boiling heat transfer'' International Journal Heat Mass Transfer 43 2000 pp 4073-4085.
  13. . LiuZ.H.QiuY.H. ‘‘Enhanced boiling heat transfer in restricted spaces of a compact tube bundle with enhanced tubes'' Application Thermal Engineering. 22 2002 pp1931-1941.
  14. . Webb R.L.,C.Pais ‘‘Nucleate pool boiling data for five refrigerants on plain integral-fin and enhanced tube geometries'' International Journal of Heat Mass Transfer 35 1992 pp 1893- 1904.
PDF VERSION [DOWNLOAD]
Preparation and characterization of copper oxide nanoparticles and determination of enhancement in critical heat flux

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence