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FORCED CONVECTION HEAT TRANSFER IN A FINITELY CONDUCTING EXTERNALLY FINNED PIPE.

Author(s) : MOUKALLED F., ACHARYA S.

Type of article: Article

Summary

THE EFFECTS OF WALL CONDUCTIVITY, INTERFIN SPACING, AND EXTERNAL HEAT TRANSFER COEFFICIENT ARE EXAMINED BY COMPARING THE RESULTS WITH THE CORRESPONDING SOLUTIONS OBTAINED ASSUMING NEGLIGIBLE WALL CONDUCTION. THE AXIAL CONDUCTION IN THE PIPE WALLS HAS A SIGNIFICANT INFLUENCE ON THE HEAT TRANSFER BEHAVIOUR. THE BULK TEMPERATURE OR THE HEAT TRANSFERRED TO THE FLUID IS UNDERESTIMATED WHEN WALL CONDUCTION IS IGNORED. AT HIGH WALL CONDUCTIVITY VALUES, THE WALL TEMPERATURES AND NUSSELT NUMBERS EXHIBIT A MONOTONIC VARIATION IN THE AXIAL DIRECTION, WITH THE BEHAVIOUR BECOMING INCREASINGLY NONMONOTONIC AS THE WALL CONDUCTIVITY VALUE IS DECREASED.

Details

  • Original title: FORCED CONVECTION HEAT TRANSFER IN A FINITELY CONDUCTING EXTERNALLY FINNED PIPE.
  • Record ID : 1989-0519
  • Languages: English
  • Source: J. Heat Transf. - vol. 110 - n. 3
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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