Abstract
A new theoretical critical heat flux (CHF) model was developed for the forced convective flow boiling at high pressure, high mass velocity, and low quality. The present model for an intermittent vapor blanket was basically derived from the sublayer dryout theory without including any empirical constant. The vapor blanket velocity was estimated by an axial force balance, and the thickness of vapor blanket was determined by a radial force balance for the Marangoni force and lift force. Based on the comparison of the predicted CHF with the experimental data taken from previous studies, the present CHF model showed satisfactory results with reasonable accuracy.
Original language | English |
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Pages (from-to) | 921-930 |
Number of pages | 10 |
Journal | KSME International Journal |
Volume | 15 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2001 Jul |
Bibliographical note
Copyright:Copyright 2017 Elsevier B.V., All rights reserved.
Keywords
- Critical heat flux
- Flow boiling
- Pressurized water reactor
- Sublayer dryout model
- Theoretical model
ASJC Scopus subject areas
- Mechanical Engineering