Parameter importance ranking for SBLOCA of CPR1000 with moment-independent sensitivity analysis

Bibliographic Details
Title: Parameter importance ranking for SBLOCA of CPR1000 with moment-independent sensitivity analysis
Authors: Qingwen Xiong, Junli Gou, Jianqiang Shan
Source: Nuclear Engineering and Technology, Vol 52, Iss 12, Pp 2821-2835 (2020)
Publisher Information: Elsevier, 2020.
Publication Year: 2020
Collection: LCC:Nuclear engineering. Atomic power
Subject Terms: BEPU, SBLOCA, CPR1000, Sensitivity analysis, Importance ranking, Nuclear engineering. Atomic power, TK9001-9401
More Details: The phenomenon identification and ranking table (PIRT) is an important basis in the nuclear power plant (NPP) thermal-hydraulic analysis. This study focuses on the importance ranking of the input parameters when lacking the PIRT, and the target scenario is the small break loss of coolant accident (SBLOCA) in a pressurized water reactor (PWR) CPR1000. A total of 54 input parameters which might have influence on the figure of merit (FOM) were identified, and the sensitivity measure of each input on the FOM was calculated through an optimized moment-independent global sensitivity analysis method. The importance ranking orders of the parameters were transformed into the Savage scores, and the parameters were categorized based on the Savage scores. A parameter importance ranking table for the SBLOCA scenario of the CPR1000 reactor was obtained, and the influences of some important parameters at different break sizes and different accident stages were analyzed.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1738-5733
Relation: http://www.sciencedirect.com/science/article/pii/S1738573320302849; https://doaj.org/toc/1738-5733
DOI: 10.1016/j.net.2020.05.031
Access URL: https://doaj.org/article/c5c7489cccd141f5b6971e9a34a1bcff
Accession Number: edsdoj.5c7489cccd141f5b6971e9a34a1bcff
Database: Directory of Open Access Journals
More Details
ISSN:17385733
DOI:10.1016/j.net.2020.05.031
Published in:Nuclear Engineering and Technology
Language:English