... of a source term. To meet this target, we have developed the computer program AESOP that deals with the expansion and the deformation of the bubble together with the aerosol absorption and researched the sensitivities of the physical parameters on decontamination factor (DF) of cesium aerosols...

... removal in pool scrubbing. However, the removal mechanism is not fully understood because the phenomena occurring in pool scrubbing are very complicated. It has been shown that parameters such as pool water depth and FPs size affect FPs removal rate (DF: Decontamination Factor), but there have been few...

... the possibility to develop a pool scrubbing measure to retain graphite dust and fission products for the overpressure discharge of HTGR. A scrubber is set up with aerosol particle concentration measurement at both the inlet and outlet, which enables us to determine the decontamination factor (DF). By conducting...

... velocity. In addition, the gas-liquid total interfacial area is overestimated in MELCOR predict by overestimating bubble breakup. This result suggests that the overestimating of DF at downstream is caused by overestimating bubble breakup in MELCOR model. pool scrubbing decontamination factor two...

... and agglomeration in aerosols. In the analysis, initial bubble diameter, sodium pool depth and temperature, aerosol particle diameter and density, initial aerosol concentration in the bubble were changed as parameter, and the results for the sensitivities of these parameters on decontamination factor (DF) of cesium...

... diameter and density, initial aerosol concentration in the bubble were changed as parameter, and the sensitivities of these parameters on decontamination factor (DF) of cesium aerosol were investigated. From the results, it was concluded that the initial bubble diameter was most sensitive parameter...

.... Therefore, a reliable model to evaluate particle decontamination efficiency by pool scrubbing is highly regarded. Currently, decontamination factor (DF) of pool scrubbing is calculated by analysis code such as MELCOR. In the MELCOR code, some assumptions and empirical formula are used, e.g. bubble diameter...

..., we focused on decontamination factor (DF) of particle from a single bubble. However, it is very difficult to calculate the initial particle concentration inside the bubble. Therefore, in our experiment, we developed a method to measure the internal particle concentration inside the bubble...

... that the model reproduces the tendency observed in the experimental DF. The model predicts that the degree of supersaturation is affected when particle concentration exceeds 10 11 /m 3 , curbing the condensational growth of particles, and thereby retarding the inertial capture. decontamination factor...