A Comparative Study of Entropy Generation Analysis Through Cartesian and Cylindrical Annulus Geometries

Abir Sakly, Nejla Mahjoub Said

Research output: Contribution to journalArticlepeer-review

Abstract

This research paper presents a comparative study dealing with entropy generation analysis in Cartesian and cylindrical annulus geometries. This numerical investigation involves heat and mass transfer coupled with forced convection and gas radiation in a semitransparent medium during the evaporation of a thin liquid film. The systems of equations are solved with interfacial and boundary conditions using an implicit finite volume method by the tridiagonal matrix algorithm method. The radiative transfer equation (RTE) was solved by the Ray tracing model. The statistical narrow band correlated-K model with the updated model parameters was applied to calculate the gas transmissivity. The main intent of this paper is to compare the entropy generation components in two different configurations. The result shows that the entropy generation related to heat and mass transfer in the channel is higher than that estimated for the cylindrical annulus. Regarding optimal design selection, the entropy generation analysis, detailed in this paper, suggests a preference for the cylindrical annulus geometry. Our results may guide designers to select from the studied configuration.

Original languageEnglish
Article number011601
JournalASME Journal of Heat and Mass Transfer
Volume145
Issue number1
DOIs
Publication statusPublished - Jan 2023
Externally publishedYes

Keywords

  • channel
  • combined radiation and convection
  • cylindrical annulus
  • entropy generation analysis
  • heat and mass transfer

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