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Thermodynamic optimization of convective heat transfer in a packed duct

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  • Demi̇rel, Y.

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.

Suggested Citation

  • Demi̇rel, Y., 1995. "Thermodynamic optimization of convective heat transfer in a packed duct," Energy, Elsevier, vol. 20(10), pages 959-967.
    • Handle: RePEc:eee:energy:v:20:y:1995:i:10:p:959-967
    DOI: 10.1016/0360-5442(95)00064-N
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    Cited by:

    1. Biswal, Pratibha & Basak, Tanmay, 2017. "Entropy generation vs energy efficiency for natural convection based energy flow in enclosures and various applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 1412-1457.
    2. Chen, Qun & Wang, Moran & Pan, Ning & Guo, Zeng-Yuan, 2009. "Optimization principles for convective heat transfer," Energy, Elsevier, vol. 34(9), pages 1199-1206.
    3. Manjunath, K. & Kaushik, S.C., 2014. "Second law thermodynamic study of heat exchangers: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 40(C), pages 348-374.

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