Heat exchanger design: Optimal uniform separation between rectangular fins protruding from a vertical rectangular base

Chun Wah Leung, S. D. Probert, M. J. Shilston

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)


Steady-state rates of heat loss, from an array of 3 mm thick, 250 mm long, horizontal rectangular duralumin fins extending 60 mm perpendicularly out of a 250 mm × 190 mm vertical rectangular duralumin base, have been measured. With the base, at a uniform temperature of between 40°C and 80°C, in a 20°C ambient environment, two separations of the parallel fins, corresponding to maxima in the rate of heat loss versus fin separation curves ensued, respectively at 12 ± 1 mm and 38 ± 1 mm. The use of the latter maxima (i.e. the optimal separation) leads to the higher rate of heat loss. The heat transfer performances of vertical and horizontal rectangular fin arrays on a vertical rectangular base are compared: using the same geometrical configuration and identical base temperatures in both cases, the vertical fin orientation has the more rapid, steady-state heat loss.
Original languageEnglish
Pages (from-to)287-299
Number of pages13
JournalApplied Energy
Issue number4
Publication statusPublished - 1 Jan 1985
Externally publishedYes

ASJC Scopus subject areas

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

Cite this