Heat and mass transfer for plate fin-and-tube heat exchangers, with and without hydrophilic coating

Chi-Chuan Wang, Chang Tsair Chang

Research output: Contribution to journalArticle

91 Scopus citations

Abstract

Heat and mass transfer characteristics of fin-and-tube heat exchangers with and without hydrophilic coating were reported in this study. The test exchangers consisted of three different louvre fin patterns and their corresponding plain fin counterpart. For completely dry test conditions, the enhancement level for the enhanced fin pattern decreases with increase of fin pitch. The Gray and Webb correlation considerably under-predicts the present 7.0 and 9.5 mm tube diameter plain fin samples. For dehumidifying test conditions, the effect of hydrophilic coating on the sensible heat transfer coefficients is negligible, and there are no detectable changes of the sensible heat transfer coefficients with change of inlet relative humidity. However, the pressure drops for the hydrophilic coated surfaces are sensitive to the inlet relative humidity.

Original languageEnglish
Pages (from-to)3109-3120
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume41
Issue number20
DOIs
StatePublished - 11 Jun 1998

Fingerprint Dive into the research topics of 'Heat and mass transfer for plate fin-and-tube heat exchangers, with and without hydrophilic coating'. Together they form a unique fingerprint.

Cite this