| Title: |
Outcomes of the experimental and numerical work on the operational behavior of passive autocatalytic recombiners in the late phase of a severe accident in the framework of the Amhyco Project |
| Authors: |
Reinecke, Ernst-Arndt; Gabriela, Nobrega; Bentaib, Ahmed; Araceli, Dominguez-Bugarin; Gonzalo, Jiménez; Matthias, Braun; Stephan, Struth; Claudia, Druska; Michael, Klauck |
| Contributors: |
ForschungszentrumJuelich GmbH; GMD - Forschungszentrum Informationstechnik GmbH (GMD); Federal Republic of Germany; Bureau d'Analyse des Accidents Majeurs (IRSN/PSN-RES/SAM/BAAM); Service des Accidents Majeurs (IRSN/PSN-RES/SAM); Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Institut de Radioprotection et de Sûreté Nucléaire (IRSN); Universidad Politécnica de Madrid (UPM); Framatome GmbH; Kungliga Tekniska Högskolan; Königlich Technische Hochschule Stockholm (KTH); GTR IRSN - Dispersion des matières radioactives et polluants (D1P12); European Project: 945057,NFRP-2019-2020,NFRP-2019-2020,AMHYCO(2020) |
| Source: |
Proceedings of the 11 th European Review Meeting on Severe Accident Research (ERMSAR2024) ; The 11th European Review Meeting on Severe Accident Research (ERMSAR2024) ; https://asnr.hal.science/irsn-04858148 ; The 11th European Review Meeting on Severe Accident Research (ERMSAR2024), Kungliga Tekniska Högskolan, May 2024, Stockholm, Sweden ; https://www.ermsar2024.conf.kth.se/ |
| Publisher Information: |
CCSD |
| Publication Year: |
2024 |
| Collection: |
IRSN (Institut de Radioprotection et de Sûreté Nucléaire): Publications (HAL |
| Subject Terms: |
Carbon Monoxide; Passive Auto-catalytic Recombiners; Hydrogen Mitigation; Severe Accident; [SPI]Engineering Sciences [physics] |
| Subject Geographic: |
Stockholm; Sweden |
| Time: |
Stockholm, Sweden |
| Description: |
International audience ; The molten core-concrete interaction in the ex-vessel phase of a severe accident in a light water reactor is a source of significant amounts of gaseous products including carbon monoxide. The European project AMHYCO addresses open issues related to the understanding of the impact of carbon monoxide on safety-relevant accident phenomena and on hydrogen mitigation measures. In order to support the simulation of accident sequences and the assessment of safety measures, Task 3.2 aimed to provide realistic models considering the influence of carbon monoxide on the operating behavior of passive auto-catalytic recombiners. The work program included conducting new experiments, analyzing existing experimental data, and further developing numerical models. The experimental program performed within Task 3.2 involved the REKO facilities at FZJ to study the impact of predicted accident atmospheres including oxygen-lean mixtures and the presence of carbon monoxide on the hydrogen recombination efficiency of different generic catalysts. More specifically, criteria were derived to predict the atmospheric conditions leading to catalyst poisoning. At the same time, a unified database including selected datasets from the various OECD/NEA-THAI projects was developed. The available experimental data were used to further advance numerical models such as the manufacturer’s engineering correlation for Framatome PARs as well as the scientific models SPARK (IRSN), PARUPM (UPM), and REKO-DIREKT (FZJ). |
| Document Type: |
conference object |
| Language: |
English |
| Relation: |
info:eu-repo/grantAgreement//945057/EU/TOWARDS AN ENHANCED ACCIDENT MANAGEMENT OF THE HYDROGEN/CO COMBUSTION RISK/AMHYCO |
| Availability: |
https://asnr.hal.science/irsn-04858148; https://asnr.hal.science/irsn-04858148v1/document; https://asnr.hal.science/irsn-04858148v1/file/ERMSAR2024-Full-Paper-AMHYCO_WP3_draft.docx.pdf |
| Rights: |
https://hal.science/licences/copyright/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.F858D348 |
| Database: |
BASE |