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

Main Article Content

Jagdeep M. KSHIRSAGAR Ramakant SHRIVASTAVA Prakash S. ADWANI

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.

Article Details

How to Cite
KSHIRSAGAR, Jagdeep M.; SHRIVASTAVA, Ramakant; ADWANI, Prakash S.. PREPARATION AND CHARACTERIZATION OF COPPER OXIDE NANOPARTICLES AND DETERMINATION OF ENHANCEMENT IN CRITICAL HEAT FLUX. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2084>. Date accessed: 14 dec. 2017. doi: https://doi.org/10.2298/TSCI140619026K.
Section
Articles
Received 2017-03-01
Accepted 2017-03-13
Published 2017-03-13

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.

Most read articles by the same author(s)