Numerical and Experimental Investigation of Heat Transfer of α-Al2O3/Water Nanofluid in Double Pipe and Shell and Tube Heat Exchangers

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • M. Akhtari - , Isfahan University of Technology (Author)
  • M. Haghshenasfard - , Isfahan University of Technology (Author)
  • M. R. Talaie - , University of Isfahan (Author)

Abstract

This research presents an experimental and numerical study on the heat transfer of -Al2O3/water nanofluid flowing through the double pipe and shell and tube heat exchangers, under laminar flow conditions. Effects of important parameters such as hot and cold volume flow rates, nanofluid temperature, and nanoparticles concentration on the heat transfer characteristics are investigated. The results indicated that the heat transfer performance of both double pipe and shell and tube heat exchangers increases with increasing the hot and cold volume flow rates, as well as the particle concentrations and nanofluid inlet temperature. Compared with pure water, the results indicated that the heat transfer coefficients of nanofluid in the double pipe and shell and tube heat exchangers are higher than those of water by 13.2% and 21.3%, respectively. Also, the heat transfer performance of nanofluid in a shell and tube heat exchanger is 26.2% higher than the double pipe heat exchanger. A computational fluid dynamics (CFD) technique was used for heat transfer simulation in the previously mentioned heat exchangers. Computed overall heat transfer coefficients of the nanofluids are in good agreement with the experimental data.

Details

Original languageEnglish
Pages (from-to)941-958
Number of pages18
Journal Numerical heat transfer : an international journal of computation and methodology
Volume63
Issue number12
Publication statusPublished - 15 Jun 2013
Peer-reviewedYes
Externally publishedYes

External IDs

Scopus 84877646690
WOS 000318155100004

Keywords

Keywords

  • Transfer enhancement, Laminar-flow, Nanoparticles, Fluid