In this paper, a theoretical prediction of critical heat flux (CHF) during power transients in forced convective boiling is presented. The analysis is restricted to departure from nucleate boiling (DNB) type of CHF at low qualities. The developed theory is compared with the experimental data available in the literature. The agreement is exceptionally good. The new model also is compared with the semi-empirical transient CHF model in the literature.

Issue Section:
Research Papers
Keywords:
Boiling, Phase-Change Phenomena, Transient and Unsteady Heat Transfer
Topics:
Boiling, Critical heat flux, Forced convection, Modeling, Transients (Dynamics)
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Copyright © 1990
 by The American Society of Mechanical Engineers
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