Evaluation of the Deterministic and Probabilistic Benchmark for the Advanced Pressurized Thermal Shock Analysis for Long Term Operation (Apal) Project
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F25%3AN0000013" target="_blank" >RIV/46356088:_____/25:N0000013 - isvavai.cz</a>
Výsledek na webu
<a href="https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2025/89046/V001T01A104/1224792" target="_blank" >https://asmedigitalcollection.asme.org/PVP/proceedings-abstract/PVP2025/89046/V001T01A104/1224792</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/PVP2025-155331" target="_blank" >10.1115/PVP2025-155331</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Evaluation of the Deterministic and Probabilistic Benchmark for the Advanced Pressurized Thermal Shock Analysis for Long Term Operation (Apal) Project
Popis výsledku v původním jazyce
The APAL project (Advanced PTS analyses for long term operation), launched in October 2020 under the EU's HORIZON 2020 program, aims to develop advanced probabilistic methods for assessing pressurized thermal shock ( PTS), quantify the impact of long-term operation (LTO) improvements and thermalhydraulic (TH) uncertainties on safety margins, and create bestpractice guidelines for PTS analysis. This paper summarizes findings from the deterministic benchmark (WP3) and the probabilistic benchmark (WP4). Various crack types, locations, fracture toughness concepts, and factors like LTO improvements and TH uncertainties were analyzed. The deterministic benchmark involved structural and fracture mechanics assessments of the reactor pressure vessel (RPV) under PTS to harmonize results across different tools and quantify safety margins. The probabilistic benchmark (WP4) assessed the same cases, focusing on calculating the conditional probability of crack initiation (CPI) and failure (CPF). A key objective was comparing probabilistic and deterministic safety margins, particularly regarding maximum allowable adjusted reference temperature (ART), RPV lifetime, and reliability index. This paper presents comparisons and key insights from both benchmark studies.
Název v anglickém jazyce
Evaluation of the Deterministic and Probabilistic Benchmark for the Advanced Pressurized Thermal Shock Analysis for Long Term Operation (Apal) Project
Popis výsledku anglicky
The APAL project (Advanced PTS analyses for long term operation), launched in October 2020 under the EU's HORIZON 2020 program, aims to develop advanced probabilistic methods for assessing pressurized thermal shock ( PTS), quantify the impact of long-term operation (LTO) improvements and thermalhydraulic (TH) uncertainties on safety margins, and create bestpractice guidelines for PTS analysis. This paper summarizes findings from the deterministic benchmark (WP3) and the probabilistic benchmark (WP4). Various crack types, locations, fracture toughness concepts, and factors like LTO improvements and TH uncertainties were analyzed. The deterministic benchmark involved structural and fracture mechanics assessments of the reactor pressure vessel (RPV) under PTS to harmonize results across different tools and quantify safety margins. The probabilistic benchmark (WP4) assessed the same cases, focusing on calculating the conditional probability of crack initiation (CPI) and failure (CPF). A key objective was comparing probabilistic and deterministic safety margins, particularly regarding maximum allowable adjusted reference temperature (ART), RPV lifetime, and reliability index. This paper presents comparisons and key insights from both benchmark studies.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20305 - Nuclear related engineering; (nuclear physics to be 1.3);
Návaznosti výsledku
Projekt
—
Návaznosti
R - Projekt Ramcoveho programu EK
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ISBN
978-0-7918-8904-6
ISSN
—
e-ISSN
—
Počet stran výsledku
10
Strana od-do
1-10
Název nakladatele
ASME
Místo vydání
—
Místo konání akce
Montreal, Canada
Datum konání akce
20. 7. 2025
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
001611951600104