TOWARDS AN ENHANCED ACCIDENT MANAGEMENT OF THE HYDROGEN/CO COMBUSTION RISK

Leistungen

Identification and Analysis of accidental sequences posing high H2/CO combustion risk (PWR-W, PWR-VVER, PWR-KWU)

The report will set the criteria on which the sequences that will become the reference of the whole project will be picked (i.e., total combustible gas produced, generation rates, in-containment distribution, etc.). In addition, it will provide a comprehensive description of such sequences. The selection process will be done on the database generated within the tasks 2.2 through 2.4.

Report on communication & dissemination activities

Report on communication dissemination activities KPIs communication media community building events management scientific disseminationThis report will be updated at M36 and M48 see D64 and D65

Synthesis of the End-Users group feedback of the project results

In this report, the main comments from the End-Users group will be included, taking into account the electronic messages, surveys and the direct feedback from the workshops and other events they participate in.

Project Quality Plan

Description of the quality plan developed for the project

Modelling guidelines for simulating severe accident combustion risk scenarios with LP, 3D containment and CFD computer codes

This document will summarize the experience gained during the analyses of the different plant designs and accident sequences. Important modeling choices e.g. nodalization, selection of physical models, H2/CO combustion risk estimation, PAR, sprays and FCVS modeling strategy as well as post processing will be documented along with identified limitations of the codes.

Synthesis of the workshops

In this report, the main outcomes from the M36 and M48 workshop will be included, taking into account the discussions within the project partners during the preparation of the workshops and while participating in them.

Proposals for LTO upgrades for minimizing combustion risks during hypothetical severe accidents in European PWRs.

This document will derive from the results above desired instrumentation and equipment availability and, to some extent, typically desired qualification requirements. The document will point out the most important instrumentation with respect to minimize the combustion risk and the most efficient equipment for risk reduction. The proposals for upgrades will be organized in three categories. First category are simply changes in the SAMGs, e.g. adding existing instrumentation to the SAMG documents, changing strategies or adding new strategies. Secondly, plant specific numerical simulations will be proposed as basis to enable well-founded decisions in the SAMGs and justify the strategies and set points. Lastly, recommendations for hardware upgrades will be given, e.g., monitoring systems, PARs, and hardening of other systems. The report will be arranged in a general part and in three plant specific chapters (PWR-W, PWR-KWU, PWR-VVER).

Website

Project public website

Data for the generic containment analysis (PWR-W, PWR-VVER, PWR-KWU)

The report will gather the data essential to build a generic lumped-parameter containment model which representative is plausible in terms of H2 and CO distribution. According to the scope of the WP2, three individual sections will deal with the three types of PWRs (Westinghouse, VVER and KWU) the tasks addressing calculations will be focused on.

AMHYCO Final Technical Report

In this report, a technical summary of the main project results and discoveries will be included, taking into account the scientific work done in the different WPs.

Critical assessment of key elements of combustible gases management in containment

The WP1 achievements will be summarized in the deliverable D11 to be produced in M9

"Report on communication & dissemination activities #3"

Update on communication and dissemination activities at M54

"Report on communication & dissemination activities #2"

Update on communication and dissemination activities at M36

Synthesis of research activities performed through PhD studies

In this report, the summary of the main scientific research activities done by the PhD students within AMHYCO project will be included.

Synthesis and outcomes of performed experiments results related to PARs behaviour

This document will summarize the experimental program and establish modelling guidelines for the simulation of PAR operation.

Dissemination, Exploitation and Communication Strategy and Plan

This plan will outline all the activities to be carried out during the 48 months of the project, and will include the overall strategy to follow, the key messages, the target audiences, the visual identity and social media channels, the tools to be used, and the expected results in terms of audience.

Engineering correlations

WP4 founds on the implementation of new engineering correlations and criteria, derived from the closed knowledge gaps in WP3. To facilitate implementation in the codes and application, they will be documented in deliverable D4.1.

Synthesis and outcomes of performed experiments and numerical results related to H2/CO/H2O combustion

This document will summarize both the experimental investigation as well as the numerical simulations. The engineering correlations will be described and their applicability range assessed as a preliminary work for work package 4.

Plant specific SAMG guidance minimizing the H2/CO combustion risk for European PWRs.

This document discusses the plant specific characteristics in three chapters for the three examined plant types PWR-W, PWR-KWU, PWR-VVER. Thereby, the general recommendations in D5.1 will be adapted and possible deviations from the general recommendations will be pointed out and justified with respect to the plant designs.

Generic guideline for SAMG development minimizing the H2/CO combustion risk in a containment.

This document will present a generic overview about the project results with respect to deal in SAMGs and EOPs with combustion risks. The different actions, with focus on spray, containment cooling and FCVS, will be discussed and proposals for optimized guidance with respect to, e.g., timing and threshold values, will be given.

Veröffentlichungen

Proposal of a systematic approach to estimating the impact of the spray safetysystem on the hydrogen risk using a 3D PWR-W Containment Model

Autoren: C. Vázquez Rodríguez (UPM, FZJ) et al.
Veröffentlicht in: 2024
Herausgeber: SNE 2024

Development of a detailed 3D CAD model of a generic PWR-KWU containment as a basis for a better assessment of H2/CO combustion risk.

Autoren: Serra, Luis; Domínguez-Bugarín, Araceli; Estévez-Albuja, Samanta; Vázquez-Rodríguez, Carlos; Jiménez, Gonzalo; Kelm, Stephan and Herranz, Luis E.
Veröffentlicht in: Proceedings of the European Nuclear Young Generation Forum ENYGF’21., 2021
Herausgeber: European Nuclear Young Generation

Validation of the PARUPM and GOTHIC 8.3 Code Coupling using THAI HydrogenRecombination Tests

Autoren: A. Domínguez-Bugarín (UPM) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

Validation of the PARUPM-GOTHIC 8.3(QA) code coupling against PARrecombination experiments HR-2 and HR-12 performed in the THAI facility

Autoren: A. Domíngez-Bugarín (UPM) et al.
Veröffentlicht in: 2024
Herausgeber: SNE 2024

PARs performance in the management of combustible gases under severe accidentscenarios in a PWR containment

Autoren: J. Fontanet (CIEMAT) et al
Veröffentlicht in: 2024
Herausgeber: SNE 2024

Study of containment atmosphere under severe accident conditions in a PWRKWU 3D model with GOTHIC 8.3 for combustion risk assessment.

Autoren: L. Serra (UPM) et al.
Veröffentlicht in: 2024
Herausgeber: SNE 2024

Experimental study on turbulent flame speed of H2-CO/air mixtures relevant to late phase accident scenario

Autoren: A. Desclaux, M. Idir, A. Comandini, A. Bleyer, A. Bentaib, N. Chaumeix
Veröffentlicht in: 2022
Herausgeber: 28th ICDERS

Analysis of combustible gases distribution with accident management action in a genericPWR-W containment

Autoren: J. Fontanet (CIEMAT) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

Presentation of the AMHYCO project

Autoren: G. Jimenez et al.
Veröffentlicht in: 2024
Herausgeber: SNETP Forum 2024

Analysis of the combustion risk mitigation inside the containment during a postulatedsevere accident in a PWR using the code package AC2

Autoren: M. Müer (PSS-RUB) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

Experimental study on expanding spherical flames of H2/CO mixtures at O2 reduced conditions

Autoren: M. Bouton, O. Mghanen, A. Desclaux, A. Comandini, A. Bentaib, N. Chaumeix
Veröffentlicht in: 2022
Herausgeber: 28th ICDERS

Assessment of Unmitigated Combustion Risk in Late Phase Within the AMHYCO Project

Autoren: S. Kelm (FZJ) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

Validation of REKO-DIREKT and ContainmentFOAM-9 Code Coupling Using THAI-HRExperiments

Autoren: L. Serra Lopez (UPM) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

H2 and H2/CO Flames Speed Correlations in Isotropic Turbulence

Autoren: Y. Ballossier, A. Desclaux, M. Bouton, Goulier Jules, A. Comandini, N. Chaumeix
Veröffentlicht in: 2023
Herausgeber: 29th ICDERS

AMHYCO PROJECT – TOWARDS ADVANCED ACCIDENT GUIDELINES FOR HYDROGEN SAFETY IN NUCLEAR POWER PLANTS

Autoren: G. Jimenez, L. E. Herranz, A. Bentaib, N. Chaumeix, E.-A. Reinecke, S. Kelm, M. Loeffler, M. Braun, I. Kljenak, O. Sevbo, D.C. Visser, Z. Liang, S. Balech.
Veröffentlicht in: International Conference in Hydrogen Safety proceedings, 2021, ISBN 9791220094009
Herausgeber: The Scottish Government and IA HySafe

Outcomes of the experimental and numerical work on the operational behavior of passiveautocatalytic recombiners in the late phase of a severe accident in the framework of theAMHYCO project

Autoren: E.-A. Reinecke (FZJ) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

AMHYCO PROJECT – TOWARDS AN ENHANCED ACCIDENT MANAGEMENT OF THE H2/CO COMBUSTION RISK

Autoren: G. Jimenez, L. E. Herranz, A. Bentaib, N. Chaumeix, E.-A. Reinecke, S. Kelm, M. Loeffler, M. Braun, I. Kljenak, O. Sevbo, D.C. Visser, Z. Liang, S. Balech
Veröffentlicht in: 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 19), 2022, ISBN 9789076971261
Herausgeber: American Nuclear Society

Analysis of atmosphere composition at severe accident conditions in a pressurizedwater reactor containment with lumped-parameter description

Autoren: I. Kljenak (JSI) et al.
Veröffentlicht in: 2024
Herausgeber: NENE 2024

Study of Flammability Domain of H2/CO Mixtures at Conditions Representative of the Late Phase of a Severe Accident in a PWR

Autoren: L. Vastier, S. Nagaraju, A. Desclaux, A. Comandini, A. Bentaib, N. Chaumeix
Veröffentlicht in: 2022
Herausgeber: 28th ICDERS

H2-CO-AIR combustion under MCCI conditions.

Autoren: G.Nyrenstedt, A. Bleyer, A. Bentaib, N. Chaumeix.
Veröffentlicht in: 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 19), 2022, ISBN 9789076971261
Herausgeber: American Nuclear Society

AMHYCO Project Overview and First Outcomes

Autoren: G. Jiménez (UPM) et al.
Veröffentlicht in: 2024
Herausgeber: ERSMAR 2024

Turbulent Flame Speed of H2-CO mixtures for conditions relevant to late phase accident scenario.

Autoren: A. Desclaux, G. Nyrenstedt, M.Idir, N. Chaumeix, A. Bleyer, A. Bentaib.
Veröffentlicht in: 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH 19), 2022, ISBN 9789076971261
Herausgeber: American Nuclear Society

Comparative Analysis of Particle Retention Models in Filtered Containment VentingSystems

Autoren: M. Müer (FZJ) et al.
Veröffentlicht in: 2024
Herausgeber: NUTHOS-14

Detailed Assessment of Combustion Risk and PAR Efficiency in the Late Phase of aSevere Accident within the European AMHYCO Project

Autoren: S. Kelm (FZJ) et al.
Veröffentlicht in: 2024
Herausgeber: NUTHOS-14

PARUPM: A simulation code for passive auto-catalytic recombiners

Autoren: Araceli Domínguez-Bugarín, Miguel-Ángel Jiménez, Ernst-Arndt Reinecke, Gonzalo Jiménez
Veröffentlicht in: EPJ Nuclear Sciences & Technologies, Ausgabe 8, 2022, Seite(n) 32, ISSN 2491-9292
Herausgeber: EDP Sciences
DOI: 10.1051/epjn/2022046

Enhancing severe accident management through research

Autoren: Luis E. Herranz, Gonzalo Jiménez, Teemu Kärkelä
Veröffentlicht in: EPJ Nuclear Sciences & Technologies, Ausgabe 11, 2025, Seite(n) 10, ISSN 2491-9292
Herausgeber: EDP Sciences
DOI: 10.1051/epjn/2025004

Towards an optimized management of accidents

Autoren: Luis E. Herranz, Gonzalo Jiménez, Francesco S. Nitti
Veröffentlicht in: EPJ Nuclear Sciences & Technologies, Ausgabe 8, 2023, Seite(n) 43, ISSN 2491-9292
Herausgeber: EDP Sciences
DOI: 10.1051/epjn/2022019

Validation process against late phase conditions of the passive autocatalytic recombiner simulation code PARUPM as a standalone tool using experimental data from REKO-3 and THAI facilities

Autoren: Araceli Dominguez-Bugarin, Ernst-Arndt Reinecke, Gonzalo Jiménez, Miguel Ángel Jiménez, Sanjeev Gupta
Veröffentlicht in: Nuclear Engineering and Design, Ausgabe 431, 2024, Seite(n) 113722, ISSN 0029-5493
Herausgeber: Elsevier BV
DOI: 10.1016/j.nucengdes.2024.113722

The Preventive Methodology: A priori modification of the containment geometry to boost the computational efficiency of GOTHIC 3D models

Autoren: Carlos Vázquez-Rodríguez, Gonzalo Jiménez, Sofía Arfinengo-del-Carpio, Rafael Bocanegra, Araceli Domínguez-Bugarín, Luis Serra, Samanta Estévez-Albuja, Kevin Fernández-Cosials
Veröffentlicht in: Nuclear Engineering and Design, Ausgabe 432, 2025, Seite(n) 113718, ISSN 0029-5493
Herausgeber: Elsevier BV
DOI: 10.1016/j.nucengdes.2024.113718

Leistungen

Veröffentlichungen

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