HEAT-TRANSFER CHARACTERIZATION OF FLAT PLAIN FINS AND ROUND TUBE HEAT-EXCHANGERS

KAYANSAYAN N.

EXPERIMENTAL THERMAL AND FLUID SCIENCE, vol.6, no.3, pp.263-272, 1993 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 6 Issue: 3
  • Publication Date: 1993
  • Doi Number: 10.1016/0894-1777(93)90067-s
  • Journal Name: EXPERIMENTAL THERMAL AND FLUID SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.263-272
  • Keywords: COMPACT HEAT EXCHANGERS, FIN-AND-TUBE EXCHANGER, FORCED CONVECTION
  • Dokuz Eylül University Affiliated: No

Abstract

The effects of outersurface geometry on the performance of flat plain fins and round tube crossflow heat exchangers are considered. With the finning parameter varying from 11 to 23, a total of 10 geometrically distinct configurations were tested over a Reynolds number range of 100-30,000. The tube outside diameter and collar thickness define the characteristic dimension. The convective heat transfer coefficients are presented as plots of the Colburn j factor versus Reynolds number and compare well with previous studies. The dispersion in the majority of the data is +/- 10%. The j factor, Reynolds number, and finning parameter are correlated.