B212 銀ゼオライトを用いた高除染性フィルターベントシステムの二相流特性の安定化(OS3 軽水炉・新型炉・原子力安全(3))

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  • B212 Improvement of Two-Phase Flow Stability for Filtered Containment Venting System Using Silver Zeolite

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We have conducted a series of experiments in order to investigate and improve the performance of the advanced filtered containment venting system: a visualization experiment to examine two-phase flow stability in a vertical tube, a superheated steam experiment with multi-layer orifices and a clogging experiment with metal filter and simulated grains. In the first experiment, several specific phenomena, such as chugging, CCFL and geysering, have been observed. Generation of superheated steam has been confirmed through the second experiment. Regarding the clogging experiment, whereas metal filter has not been clogged, accumulation of the simulated grains has been observed.

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