A heat transfer model development for CHF prediction with consideration of dry patch characteristics

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This study develops an observation-based mechanistic heat transfer model that can be extended to the whole boiling curve to reflect real physical phenomena on a heated surface. In addition to hot spot formation, this study focuses on dry patch behaviors, which actually directly trigger CHF occurrences. For that purpose, hot spot distribution and the critical number of hot spots are further considered to determine the kinds of dry patches, whether reversible (quenchable) or irreversible (unquenchable). To assess the prediction performance, CHF data that include combined effects are used for data comparisons. The developed model predicts well for large dimensions at a vertical orientation, suggesting potential applications to large-scale facilities.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2020-02
Language
English
Article Type
Article
Citation

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.148

ISSN
0017-9310
DOI
10.1016/j.ijheatmasstransfer.2019.118812
URI
http://hdl.handle.net/10203/271774
Appears in Collection
NE-Journal Papers(저널논문)
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