湿式エアロゾルフィルターのスクラビングプールにおける二相流の挙動に関する実験およびシミュレーション
Experimental and Simulation Studies on the Two-phase Flow Behavior in the Scrubbing Pool of the Wet-type Aerosol Filter
著者:
チャン チ ヴィエン 高橋 秀治 奈良林 直 木倉 宏成 （東工大）
発刊日:
公開日:
Filtered containment venting systemScrubbing poolSevere accidentTRAC codeTwo- phase flowWet-type aerosol filter
概要
For decommissioning of the Fukushima Daiichi Nuclear Power Plant, a high efficiency Filtered Containment Venting System should be equipped to prevent the releasing of radioactive material to environment. The wet-type aerosol filter is the first stage of the Filtered Containment Venting System, and it plays significant role to removal the aerosol particles from the venting system. The decontamination of the filter strongly depends on the two- phase flow pattern in scrubbing pool of the filter. Therefore, in order to improve the efficiency of the filter, the flow behavior should be well understood. In this study, the experiment and simulation were conducted to understand the two-phase flow behavior in the scrubbing pool of the filter due to air flow injection. In experiment, the optical visualization method was used to measure the parameters of bubbles such as bubble size, bubble velocity. In simulation, the two-phase flow analyses were performed using the TRAC-BF1 code.
