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Report No.

Research Work for Utilizing Technology of the Lead-Bismuth Eutectic; Thermal-hydraulic Research Work

Sakai, Takaaki; Enuma, Yasuhiro  ; Soman, Yoshindo; Nishi, Yoshihisa*; Kinoshita, Izumi*

In System analysis has been performed to evaluate the thermal-hydraulics effect of the tube rapture accident. In addition, lifted flow rate by gas injection in the lead-bismuth has been measured to confirm the applicability of existing void fraction correlations based on the drift-flux model by Zuber-Findlay. As a result, it is clarified that the cooling capability is successfully maintained also in case of the tube rapture accident, because the flow reversal is limited to only 1/8 sector of downward flow area due to the tube support wall structure in the steam generator. And also, the applicability of existing void fraction correlations to Lead-Bismuth is confirmed by the gas injection experiment.



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