Thermodynamic optimization of convective heat transfer in a packed duct

Y. Demirel

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The first and second laws of thermodynamics have been utilized to optimize the convective heat transfer in a packed duct with constant wall temperatures. Introducing packing into the fluid-flow passage increases the wall-to-fluid heat transfer considerably and hence reduces entropy generation due to heat transfer across a finite temperature difference; at the same time, entropy generation due to fluid-flow friction increases. Minimization of the net entropy generation yields the criterion for system optimization. It is shown that the entropy-generation rate, a path-dependent property induced by enhancement of convective heat transfer in a packed duct, may be minimized through proper selection of operating conditions and design parameters of the system.

Original languageEnglish (US)
Pages (from-to)959-967
Number of pages9
JournalEnergy
Volume20
Issue number10
DOIs
StatePublished - Oct 1995

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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