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開発
Development of High Efficiency Filtered Containment Venting System by using AgX
著者:
奈良林 直 Tadashi NARABAYASHI 川村 慎一 Shinichi KAWAMURA
発刊日:
公開日:
Filtered Venting SystemFukushima Daiichi NPP AccidentSevere AccidentsSilver ZeoliteVenturi Scrubber
概要
Fukushima Daiichi NPP accident would be terminated, if sufficient accident countermeasures, such as water proof door, mobile power, etc. In case of Europe, it had already installed the heat removal system and filtered containment venting system (FCVS) from the lessons of TMI and Chernobyl Accidents. The new regulatory standard, the filtered vent system (FCVS) should be installed, and prevent the radioactive material in case of the severe accident and the overpressure breakage prevention of a primary containment vessel (PCV) and also the robustization of the FCVS. The authors examined the severe accident process in the 2nd unit of Fukushima Daiichi NPS, and found the vent by FCVS should be done before water injection into the core. The PCV spray and water injection into the pedestal basement should be also the countermeasures to the severe accident. Countermeasures for an intentional aircraft collision should be installed too.
