Wall temperature prediction in annular geometry during post-dryout heat transfer

  • Ionut G. Anghel KTH - Royal Institute of Technology
  • Henryk Anglart KTH - Royal Institute of Technology


In this paper a new approach to predict wall temperature during post-dryout heat transfer in annuli with flow obstacles is presented. The proposed approach takes into account the obstacle specifics and location in the channel to determine the onset of post-dryout patch. The wall temperature in the dry patch area is predicted from a correlation that is taking into account the developing post-dryout heat transfer regime. The method is applied to post-dryout conditions in annulus with pin-spacers and a significant improvement of prediction accuracy in comparison to other reference methods is demonstrated.


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How to Cite
ANGHEL, Ionut G.; ANGLART, Henryk. Wall temperature prediction in annular geometry during post-dryout heat transfer. Journal of Power Technologies, [S.l.], v. 94, n. 5, p. 1--7, jan. 2015. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/586>. Date accessed: 02 aug. 2021.


Post-dryout; Obstacle effect; Annular geometry; Heat transfer

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