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Wall Temperature Prediction in Annular Geometry during Post-Dryout Heat Transfer
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0001-5595-1952
2014 (English)In: Journal of Power Technologies, ISSN 2083-4187, E-ISSN 2083-4195, Vol. 94, 1-7 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2014. Vol. 94, 1-7 p.
Keyword [en]
Post-dryout, Obstacle effect, Annular geometry, Heat transfer
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-163564OAI: diva2:801119

QC 20150410

Available from: 2015-04-08 Created: 2015-04-08 Last updated: 2015-04-10Bibliographically approved

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Anghel, IonutAnglart, Henryk
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