Table of Contents
Journal of Nanoparticles
Volume 2016 (2016), Article ID 8763171, 6 pages
http://dx.doi.org/10.1155/2016/8763171
Research Article

Effect of Uniformly and Nonuniformly Coated Al2O3 Nanoparticles over Glass Tube Heater on Pool Boiling

1Department of Mechanical Engineering, B.S. College of Engineering and Research, Narhe, Pune 411046, India
2Department of Mechanical Engineering, AGTIS’ Dr. Daulatrao Aher College of Engineering, Karad 415124, India
3Department of Mechanical Engineering, KIT’s College of Engineering, Kolhapur 416234, India
4Department of Mechanical Engineering, Government College of Engineering, Karad 415124, India
5Directorate of Technical Education, Government of Maharashtra, Mumbai, India

Received 24 August 2016; Revised 15 October 2016; Accepted 23 October 2016

Academic Editor: Raphael Schneider

Copyright © 2016 Nitin Doifode et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Effect of uniformly and nonuniformly coated Al2O3 nanoparticles over plain glass tube heater on pool boiling heat transfer was studied experimentally. A borosilicate glass tube coated with Al2O3 nanoparticle was used as test heater. The boiling behaviour was studied by using high speed camera. Result obtained for pool boiling shows enhancement in heat transfer for nanoparticle coated surface heater and compared with plain glass tube heater. Also heat transfer coefficient for nonuniformly coated nanoparticles was studied and compared with uniformly coated and plain glass tube. Coating effect of nanoparticles over glass tube increases its surface roughness and thereby creates more nucleation sites.