Heat transfer characterization of a finned-tube heat exchanger (with and without condensation)

S. A. Idem, A. M. Jacobi, V. W. Goldschmidt

Research output: Contribution to journalArticlepeer-review


The effects upon the performance of an air-to-water copper finned-tube crossflow heat exchanger due to condensation on the outer surface are considered. A fourtube, two-pass heat exchanger was tested over a Reynolds number range (based on hydraulic diameter) from 400 to 1500. The coil was operated both in overall parallel and overall counterflow configurations. Convective heat and mass transfer coefficients are presented as plots of Colburn j-factor versus Reynolds number. Pressure losses are, similarly, presented as plots of the friction factor versus Reynolds number. Enhancement of sensible heat transfer due to the presence of a condensate film is also considered.

Original languageEnglish (US)
Pages (from-to)64-70
Number of pages7
JournalJournal of Heat Transfer
Issue number1
StatePublished - Feb 1990
Externally publishedYes


  • Augmentation and enhancement
  • Heat exchangers

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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