Unsteady heat transfer from a reservoir fluid by employing metal foam tube, helically tube and straight tube: A comparative experimental study

M. Nazari, N. Babazadeh Baie, M. Ashouri, M. M. Shahmardan, A. Tamayol

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The main purpose of this study is to experimentally investigate the transient heat transfer from a fluid stored inside a closed reservoir. Different cooling methods, i.e. the use of metal foam embedded tube, helical tube, and a straight tube, are used and compared for heat transfer from the fluid reservoir. CuO/water nanofluid in various volume fractions in the range of 0–0.2 (w/v) are also employed as cooling fluid. The experimental data shows a heat transfer enhancement of 42% and 45% for helical tube and metal foam tube respectively, as compare with the straight tube by using 0.2% (w/v) Cuo/water nanofluid. The experiments indicate that combination of the two presenting methods (metal foam/helical shape and nanofluids) has a significant capability to enhance the heat transfer rate. Finally, two correlations between Rayleigh number and non-dimensional heat flux are presented for the straight and porous tubes.

Original languageEnglish (US)
Pages (from-to)39-48
Number of pages10
JournalApplied Thermal Engineering
Volume111
DOIs
StatePublished - Jan 25 2017

Keywords

  • Coiled tube
  • Metal foam
  • Nanofluid
  • Unsteady heat transfer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Unsteady heat transfer from a reservoir fluid by employing metal foam tube, helically tube and straight tube: A comparative experimental study'. Together they form a unique fingerprint.

  • Cite this