Further considerations of critical heat flux in saturated pool boiling during power transients
In this paper, we further evaluate our previously postulated transient CHF model. First, we verify the steady-state CHF model on which the transient model is based by using recent macrolayer-thickness data. We also include the effect of thermal storage in the heater that we previously neglected. The use of a simplified approach in the prediction of the instantaneous surface heat flux for given pwoer generation rates considerably improves the predictive capability of the transient critical heat-flux (CHF) model. Finally, we discuss the statistical vapor mass behavior during transient boiling and its effect on the transient CHF model. We show that the data scatter within a small range may be partially explained through such an approach.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5049855
- Report Number(s):
- LA-UR-87-4016; CONF-880724-2; ON: DE88004316
- Resource Relation:
- Conference: 25. American Society of Mechanical Engineers/American Institute of Chemical Engineers/American Nuclear Society national heat transfer conference, Houston, TX, USA, 24 Jul 1988
- Country of Publication:
- United States
- Language:
- English
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