Fig. 1. Configuration of the film boiling test facility

Fig. 2. Schematic of the experimental test section

Fig. 3. Structural diagram of the heating rod

Fig. 4. Flow chart for solving the inverse heat conduction problem

Fig. 5. Determination of quench time

Fig. 6. Temperature variation of the thermocouple at different locations in the reflooding experiment

Fig. 7. Results of quench front propagation (a) Under differing inlet subcooling, (b) Under differing inlet mass flow, (c) Under differing power density

Fig. 8. Modeling diagram of RELAP5

Fig. 9. Comparison of calculated and experimental values for (a) Quench front propagation, (b) Surface temperature change, (c) Differential pressure change

Fig. 10. Comparison of RELAP5 results with experimental data at Axial height of 1 145 mm for surface temperature changes (a) and changes of heat transfer coefficient and heat transfer model (b)