Thermodynamic optimization of convective heat transfer in a packed duct

Y. Demirel

Research output: Contribution to journalArticle

13 Citations (Scopus)

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

Fingerprint

Ducts
Entropy
Thermodynamics
Heat transfer
Flow of fluids
Friction
Temperature
Fluids

ASJC Scopus subject areas

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

Cite this

Thermodynamic optimization of convective heat transfer in a packed duct. / Demirel, Y.

In: Energy, Vol. 20, No. 10, 10.1995, p. 959-967.

Research output: Contribution to journalArticle

Demirel, Y. / Thermodynamic optimization of convective heat transfer in a packed duct. In: Energy. 1995 ; Vol. 20, No. 10. pp. 959-967.
@article{79ef7136042e4be1986a9ae022c7cf7f,
title = "Thermodynamic optimization of convective heat transfer in a packed duct",
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.",
author = "Y. Demirel",
year = "1995",
month = "10",
doi = "10.1016/0360-5442(95)00064-N",
language = "English (US)",
volume = "20",
pages = "959--967",
journal = "Energy",
issn = "0360-5442",
publisher = "Elsevier Limited",
number = "10",

}

TY - JOUR

T1 - Thermodynamic optimization of convective heat transfer in a packed duct

AU - Demirel, Y.

PY - 1995/10

Y1 - 1995/10

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0029380123&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029380123&partnerID=8YFLogxK

U2 - 10.1016/0360-5442(95)00064-N

DO - 10.1016/0360-5442(95)00064-N

M3 - Article

AN - SCOPUS:0029380123

VL - 20

SP - 959

EP - 967

JO - Energy

JF - Energy

SN - 0360-5442

IS - 10

ER -