Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis

Next generation reactor safety analysis codes are intended to make use of advanced numerical methods and higher fidelity models with built-in sensitivity analysis (SA) and uncertainty quantification (UQ) [1]. However, due to the complex nature of uncertainty propagation in thermal-hydraulic codes, i...

Full description

Bibliographic Details
Main Authors: Buongiorno, Jacopo, Yurko, Joseph P
Other Authors: Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Format: Article
Language:en_US
Published: American Nuclear Society 2014
Online Access:http://hdl.handle.net/1721.1/87057
https://orcid.org/0000-0001-6501-2836
_version_ 1811077077636481024
author Buongiorno, Jacopo
Yurko, Joseph P
author2 Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Buongiorno, Jacopo
Yurko, Joseph P
author_sort Buongiorno, Jacopo
collection MIT
description Next generation reactor safety analysis codes are intended to make use of advanced numerical methods and higher fidelity models with built-in sensitivity analysis (SA) and uncertainty quantification (UQ) [1]. However, due to the complex nature of uncertainty propagation in thermal-hydraulic codes, it is crucial to first narrow the focus to only the most important processes contributing to a particular figure of merit (FOM). Uncertainty propagation in the safety code is then performed through those dominant controlling phenomena. Traditionally, Phenomena Identification and Ranking Tables (PIRTs) based on expert opinion have been used to guide selection of the "most important processes." But in the present context, uncertainty propagation must be performed on the dominant processes as "viewed" by the safety code itself. Therefore a PIRT-like methodology must be applied to rank processes from the safety code's point of view.
first_indexed 2024-09-23T10:37:32Z
format Article
id mit-1721.1/87057
institution Massachusetts Institute of Technology
language en_US
last_indexed 2024-09-23T10:37:32Z
publishDate 2014
publisher American Nuclear Society
record_format dspace
spelling mit-1721.1/870572023-02-26T03:39:20Z Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis Buongiorno, Jacopo Yurko, Joseph P Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Buongiorno, Jacopo Yurko, Joseph P. Buongiorno, Jacopo Next generation reactor safety analysis codes are intended to make use of advanced numerical methods and higher fidelity models with built-in sensitivity analysis (SA) and uncertainty quantification (UQ) [1]. However, due to the complex nature of uncertainty propagation in thermal-hydraulic codes, it is crucial to first narrow the focus to only the most important processes contributing to a particular figure of merit (FOM). Uncertainty propagation in the safety code is then performed through those dominant controlling phenomena. Traditionally, Phenomena Identification and Ranking Tables (PIRTs) based on expert opinion have been used to guide selection of the "most important processes." But in the present context, uncertainty propagation must be performed on the dominant processes as "viewed" by the safety code itself. Therefore a PIRT-like methodology must be applied to rank processes from the safety code's point of view. 2014-05-19T19:47:55Z 2014-05-19T19:47:55Z 2011-06 Article http://purl.org/eprint/type/JournalArticle http://hdl.handle.net/1721.1/87057 Yurko, Joseph, and Jacopo Buongiorno. "Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis." Transactions of the American Nuclear Society, Vol. 104, Hollywood, Florida, June 26-30, 2011. https://orcid.org/0000-0001-6501-2836 en_US http://epubs.ans.org/?p=trans:104&pg=5 Transactions of the American Nuclear Society Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf American Nuclear Society Prof. Buongiorno via Chris Sherratt
spellingShingle Buongiorno, Jacopo
Yurko, Joseph P
Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title_full Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title_fullStr Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title_full_unstemmed Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title_short Quantitative Phenomena Identification and Ranking Table (QPIRT) for Reactor Safety Analysis
title_sort quantitative phenomena identification and ranking table qpirt for reactor safety analysis
url http://hdl.handle.net/1721.1/87057
https://orcid.org/0000-0001-6501-2836
work_keys_str_mv AT buongiornojacopo quantitativephenomenaidentificationandrankingtableqpirtforreactorsafetyanalysis
AT yurkojosephp quantitativephenomenaidentificationandrankingtableqpirtforreactorsafetyanalysis