Overview of filtered containment venting system in Nuclear Power Plants in Asia

摘要

In this paper, we extensively review the status and projection of the Filtered Containment Venting Systems (FCVSs) in the Nuclear Power Plants (NPPs) in Asia. As an important strategy to mitigate the Severe Accidents (SAs) in NPPs, FCVS is designed to prevent the containment overpressure failure by providing containment venting through a filtration system. The 2011 Fukushima Daiichi nuclear accident brought a negative impact to the public faith on the nuclear safety, the accident has led regulatory authorities and policy makers to re-evaluate safety criteria and reinforce safety supervision. As a result, the mitigation of SAs regains attention of nuclear community. Many investigation and research works were initialized or resumed, particularly about the enhancement of FCVS on robustness and filtration efficiency.