フィルタベントシステムにおけるヨウ素除去性能

抄録

During a severe nuclear power plant accident, increasing of containment pressure are assumed to be possible. When the containment is damaged by excess pressure or temperature, radioactive materials are released from the containment. A filtered containment venting system (FCVS) reduces containment pressure and the radioactive release into the environment. The FCVS removes radioactive materials via various process. A pool scrubbing is an important process and flow dynamics (inertial collision, submergence, bubble diameter) and chemical conditions (pH, solubility) affects the radioactive materials removal performance. For an iodine (I2), chemical conditions are important factor in this process. This study has evaluated the relationships between the iodine decontamination performance and the chemical conditions in the pool scrubbing process.