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Entropy generation through combined non-grey gas radiation and forced convection between two parallel plates

Author

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  • Ben Nejma, F.
  • Mazgar, A.
  • Abdallah, N.
  • Charrada, K.

Abstract

The current study presents a numerical computation of combined gas radiation and forced convection through two parallel plates. A laminar flow of a temperature-dependent and non-grey gas in the entrance region of the channel was investigated. Over-heated water vapor was chosen as a gas because of its large absorption bands. Some special attention was given to entropy generation and its dependence on geometrical and thermodynamic parameters. The radiative part of the study was solved using the “Ray Tracing” method through S4 directions, associated with the “statistical narrow band correlated-k” (SNBCK) model. The temperature fields were used to calculate the distributions of local and global entropy generation.

Suggested Citation

  • Ben Nejma, F. & Mazgar, A. & Abdallah, N. & Charrada, K., 2008. "Entropy generation through combined non-grey gas radiation and forced convection between two parallel plates," Energy, Elsevier, vol. 33(7), pages 1169-1178.
    • Handle: RePEc:eee:energy:v:33:y:2008:i:7:p:1169-1178
    DOI: 10.1016/j.energy.2008.02.004
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    Citations

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    Cited by:

    1. Makhanlall, D. & Liu, L.H. & Zhang, H.C., 2010. "SLA (Second-law analysis) of transient radiative transfer processes," Energy, Elsevier, vol. 35(12), pages 5151-5160.
    2. Sciacovelli, Adriano & Verda, Vittorio, 2009. "Entropy generation analysis in a monolithic-type solid oxide fuel cell (SOFC)," Energy, Elsevier, vol. 34(7), pages 850-865.
    3. Sciacovelli, A. & Verda, V. & Sciubba, E., 2015. "Entropy generation analysis as a design tool—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 43(C), pages 1167-1181.
    4. Aziz, A. & Khan, W.A., 2011. "Classical and minimum entropy generation analyses for steady state conduction with temperature dependent thermal conductivity and asymmetric thermal boundary conditions: Regular and functionally grade," Energy, Elsevier, vol. 36(10), pages 6195-6207.
    5. Agudelo, Andrés & Cortés, Cristóbal, 2010. "Thermal radiation and the second law," Energy, Elsevier, vol. 35(2), pages 679-691.
    6. Méchi, Rachid & Farhat, Habib & Guedri, Kamel & Halouani, Kamel & Said, Rachid, 2010. "Extension of the zonal method to inhomogeneous non-grey semi-transparent medium," Energy, Elsevier, vol. 35(1), pages 1-15.
    7. Chen, Qun & Wang, Moran & Pan, Ning & Guo, Zeng-Yuan, 2009. "Optimization principles for convective heat transfer," Energy, Elsevier, vol. 34(9), pages 1199-1206.

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