Air-side performance of herringbone wavy fin-and-tube heat exchangers under dehumidifying condition - Data with larger diameter tube

Chi-Chuan Wang*, Jane Sunn Liaw

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

This study examines the airside performance of the herringbone wavy fin-and-tube heat exchangers in dehumidifying condition having a larger diameter tube (D c = 16.59 mm) with the tube row ranging from 2 to 12. Test results are compared to that of dry conditions and plain fin geometry. Upon the influence of surface condition (dry or wet) on the heat transfer performance, the heat transfer performance in dehumidifying condition normally exceeds that in dry condition, and is more pronounced with the rise of tube row or reduction of fin pitch. By contrast, it is found that the heat transfer coefficient for plain fin geometry in dehumidifying condition is slightly lower than that in dry condition. The pressure drops in wet condition is much higher than that in dry condition. However, the difference in pressure drop amid dry and dehumidifying condition for wavy fin configuration is less profound as that of plain fin geometry.

Original languageEnglish
Pages (from-to)3054-3060
Number of pages7
JournalInternational Journal of Heat and Mass Transfer
Volume55
Issue number11-12
DOIs
StatePublished - 1 May 2012

Keywords

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

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