Heat transfer and friction characteristics of plain fin-and-tube heat exchangers, part I: New experimental data

Chi-Chuan Wang*, Kuan Yu Chi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

209 Scopus citations

Abstract

This study presents the airside performance of fin-and-tube heat exchangers with plain fin configurations. A total of 18 samples were tested. The effect of the number of tube rows, fin pitch and tube diameter on the thermal-hydraulic characteristics was examined. Depending on the number of tube rows, it was found that the heat transfer characteristics were strongly related to the fin pitch. For N = 1 or 2, the heat transfer performance increased with decrease of fin pitch. For N ≥ 4 and Re(Dc) > 2000, the effect of fin pitch on heat transfer performance was negligible. For the same fin pitch, the effect of the number of tube rows on the friction performance was very small. The effect of tube diameter on heat transfer performance is related to fin pitch as well. Pressure drops for D(c) = 10.23 mm exceed those of D(c) = 8.51 mm by approximately 10-15%. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2681-2691
Number of pages11
JournalInternational Journal of Heat and Mass Transfer
Volume43
Issue number15
DOIs
StatePublished - 1 Aug 2000

Keywords

  • Augmentation
  • Finned surfaces
  • Heat exchangers

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