A methodology for Living Probabilistic Safety Assessment (LPSA) based on Advanced Control Room Operator Support System (ACROSS)

In Probabilistic Safety Assessment (PSA) all attention is paid to analyze a system which is a time consuming effort so there is a need to develop a system network to support the analyst and to reduce manpower. To handle the physical, operational and organizational changes and to utilize the PSA information effectively the development of living Probabilistic Safety Assessment (LPSA) is essential. This paper presents a detailed methodology for LPSA. One part of this methodology is Advanced Control Room Operator Support System (ACROSS) which is helpful for updating the LPSA model. This methodology also provides help to make the control rooms in Nuclear Power Plants (NPPs) more advanced and user friendly. The study also makes recommendations for further use and development of this technique in the present and future NPPs.

► In this study we have introduced a methodology for Living Probabilistic Safety Assessment (LPSA).
► Now the paper is focus on LPSA methodology for this purpose we introduced Advanced Control Room Operator Support System (ACROSS).
► The ACROSS concept is new technique in LPSA and it’s a part of our research project.
► Detail is present in Section 2.4 of paper.
► We have also added Fig. 2, Fig. 3 and Fig. 4 to provide more detail about methodology.
► We have remove Risk monitor portion from our paper and give more attention to LPSA methodology.