Thermal effectiveness of short-protrusion rectangular, heat-exchanger fins

Chun Wah Leung, S. D. Probert

Research output: Journal article publicationJournal articleAcademic researchpeer-review

44 Citations (Scopus)


Steady-state rates of heat dissipation under natural-convective conditions, from heat exchangers with vertical rectangular fins attached to a rectangular base, have been measured. The fins were relatively small, with a length of 150 mm and a protrusion of either 10 or 17 mm. The tests were carried out with the base of the fin array at either 20 or 40 K above the mean temperature of the environmental air in the laboratory. The optimal inter-fin separations (for achieving maximum heat-transfer rates) were 9·0 ± 0·5 mm and 9·5 ± 0·5 mm for the vertical fins protruding outwards from the vertical base and upwards from the horizontal base respectively. The experimental results are presented as non-dimensional correlations.
Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalApplied Energy
Issue number1
Publication statusPublished - 1 Jan 1989

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Energy(all)


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