Experimental Study on Influencing Factors of Aerosol Retention by Pool Scrubbing

During the process of containment depressurization venting, a high-temperature and high-pressure carrier gas with aerosol may be released into spent fuel pool by multihole injector. This in can removed scrubbing. A small-scale scrubbing facility was built to study phenomenon using In this study, gaseous mixture nitrogen steam is used simulate gas, insoluble solid particles TiO 2 are aerosols gas. Seven tests were performed examine dependence decontamination factor (DF) on depth, particle diameter, mass fraction. The results show that log(1/(1–X m )) has linear relationship log(DF). DF varies exponentially which an influence retention larger diameter. Particle diameters range 0.2–0.52 ?m have little effect DF. For low-depth scrubbing, condensation mechanism dominant diameter does not significant Moreover, model discussed, empirical correlation proposed evaluate pool.