Airside performance of herringbone wavy fin-and-tube heat exchangers - Data with larger diameter tube

Chi-Chuan Wang*, Jane Sunn Liaw, Bing Chwen Yang

*Corresponding author for this work

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

This study examines the airside performance of the wavy fin-and-tube heat exchangers having a larger diameter tube (Dc = 16.59 mm) with the tube row ranging from 1 to 16. It is found that the effect of tube row on the heat transfer performance is quite significant, and the heat transfer performance deteriorates with the rise of tube row. The performance drop is especially pronounced at the low Reynolds number region. Actually more than 85% drop of heat transfer performance is seen for Fp ∼ 1.7 mm as the row number is increased from 1 to 16. Upon the influence of tube row on the frictional performance, an unexpected row dependence of the friction factor is encountered. The effect of fin pitch on the airside performance is comparatively small for N = 1 or N = 2. However, a notable drop of heat transfer performance is seen when the number of tube row is increased, and normally higher heat transfer and frictional performance is associated with that of the larger fin pitch.

Original languageEnglish
Pages (from-to)1024-1029
Number of pages6
JournalInternational Journal of Heat and Mass Transfer
Volume54
Issue number5-6
DOIs
StatePublished - 1 Feb 2011

Keywords

  • Fin-and-tube heat exchanger
  • Larger diameter
  • Wavy fin

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