An experimental study on nanofluids convective heat transfer through a straight tube under constant heat flux

Azari A., Kalbasi M., Derakhshandeh M., Rahimi M.

Chinese Journal of Chemical Engineering, vol.21, no.10, pp.1082-1088, 2013 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 10
  • Publication Date: 2013
  • Doi Number: 10.1016/s1004-9541(13)60618-7
  • Journal Name: Chinese Journal of Chemical Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1082-1088
  • Keywords: convection, forced convection, heat transfer, nanoparticles, nanofluids
  • Istanbul Gelisim University Affiliated: No

Abstract

In this work, the laminar convective heat transfer performance and the pressure drop of water-based nanofluids containing Al2O3, TiO2 and SiO2 nanoparticles flowing through a straight circular tube were experimentally investigated. The experimental results showed that addition of small amounts of nano-sized Al2O3 and TiO2 particles to de-ionized water increased heat transfer coefficients considerably, while the SiO2 nanofluids showed the opposite behavior attracting the authors' interests. An average of 16% and 8.2% increase in heat transfer coefficient were observed with the average of 28% and 15% penalty in pressure drop for Al2O3 and TiO2 nanofluids.