On the Expediency of Developing a Two-Stage Model of Boiling Crisis of a Liquid Wetting a Heating Surface

This short report substantiates the advisability of developing a two-stage model for the emergence and development of a boiling crisis. One of the stages is the violation of the stability of the two-phase wall layer, and the other is the appearance and fusion of dry spots on the heating surface. The...

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Bibliographic Details
Published in:Thermal engineering 2020-11, Vol.67 (11), p.844-846
Main Author: Fedorovich, E. D.
Format: Article
Language:English
Subjects:
Boiling
Discussion
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Heating
Wetting
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Summary:This short report substantiates the advisability of developing a two-stage model for the emergence and development of a boiling crisis. One of the stages is the violation of the stability of the two-phase wall layer, and the other is the appearance and fusion of dry spots on the heating surface. The use of a two-stage (“temporary”) model makes it possible to combine both well-known approaches to crisis analysis—hydrodynamic and thermal—in a single logical system. In the first approach, the characteristics of the boiling crisis are characteristic of high pressures in a boiling liquid, while those in the second are for low pressures.
ISSN:0040-6015
1555-6301
DOI:10.1134/S0040601520110051