IAPSAM Logo

PSAM 16 Conference Paper Overview

Welcome to the PSAM 16 Conference paper and speaker overview page.

Lead Author: Ola Bäckström Co-author(s): Pavel Krcal Pavel.Krcal@lr.org Xuhong He Xuhong.He@lr.org
Use of PSA for Small Modular Reactors
PRA modelling approaches for nuclear installations of the current type have evolved over many years. A significant focus of the methodology has been devoted to the management of the complexity of the systems within a station and to the question how to appropriately estimate the metrics for an individual station. The acceptance framework for nuclear reactors is also focusing on individual stations in isolation. Further assumptions include the typical mission times of 24 respective 48 hours and to a great extent also independence of failures within an accident sequence. The booming interest in small modular reactors driven by their cost efficiency and increased safety might challenge the established methodology and bring new impulses at multiple aspects. Amongst them can be mentioned: Risk metric and safe state, component types, passive design, software (digital) control systems, multi-unit analysis. Some of the challenges are also of interest to existing reactors, especially in the effort to modernize them. The challenges will affect the risk assessment on different levels. This paper will discuss topics related to PRA quantification, like the need to manage longer mission times, multi-unit risk and digital control systems. Our aim is to demonstrate how such issues can be dealt with within the existing or extended frameworks.

Paper OL137 Preview

Author and Presentation Info

"
Lead Author Name: Ola Backstrom (Ola.Backstrom@lr.org)

Bio: Ola holds a master of science in mechanical engineering within reactor technology. He is a specialist in PSA/PRA and has been involved in a variety of PSA and reliability projects since the early 90´s. From year 2000 and onwards Ola has been responsible for the development of RiskSpectrum and has for the past 15 years been the business owner of the RiskSpectrum product family.

Country: Sweden
Company: LR RiskSpectrum
Job Title: VP RiskSpectrum

Download paper OL137.

Download the presentation pdf file.