DAY 1 – Monday, October 18th 2021
| 13:00 – 13:15 | Welcome | Véronique Rouyer, Head, Division of Nuclear Safety Technology and Regulation, Nuclear Energy Agency, OECD Patrice Giordano, Nuclear Safety Research Director, IRSN Ivan Vicena – Head of Technological Systems Dpt. and Member of Board, VUEZ |
| 13:15 – 14:15 | General session | Keynote addresses Chairs: L. E. Herranz, A. Bentaib |
| RCCS-2021-1010 | Jorge Luis Hernandenz (IAEA) | Reactor core and containment cooling systems regulatory aspects from IAEA standards |
| RCCS-2021-1020 | BrunoTournaire (EDF, France) | Reactor core and containment cooling systems on French Nuclear Power Plants |
| RCCS-2021-1030 | Karim Osman (Ontario Power Generation, Canada) | SAMG Long Term Core and Containment Cooling Strategy Application and Management in Canadian NPPs |
| 14:15 – 14:25 | Break | |
| 14:25 – 16:00 | Topic 1 | Assessment of accident management measures and strategies Chairs: A. TEHRANI, N. MESMOUS |
| RCCS-2021-1090 | P. Kral, J. Krhounkova, F. Lahovsky, M. Bencik (UJV Rez, Czech Republic) | Safety Analyses of Events Starting from Shutdown Modes of VVER |
| RCCS-2021-1100 | P. Groudev, P. Vryashkova, I. Ivanov, K. Filipov (INRE, Bulgaria) | Analysis of the Existing VVER-1000’ Severe Accident Management Strategy for Core Cooling and View on Improvement Opportunities, relating to Kozloduy NPP in Bulgaria |
| RCCS-2021-1110 | K. Heckmann, M. Sonnenkalb, J. Sievers, T. Steinrotter, S. Palazzo, J. Arndt, C. Blasius (GRS, Germany) | Review and Perspective of GRS’ Long Term Accident Analyses with Consideration of Structure Mechanical Aspects |
| RCCS-2021-1120 | L. E. Herranz, R. Bocanegra (CEIMAT, Spain) | Long term containment cooling in Fukushima Unit 1: consequences and sensitivity |
| RCCS-2021-1130 | M. Petric (Slovenske elektrarne, Slovak Republic) | Review of Actual Bohunice NPP Core and Containment Cooling Systems Design |
| RCCS-2021-1150 | M. Di Giuli, P. Dejardin, M. Auglaire (Tractebel Engineering SA Engie, Belgium) | Assessment of long-term containment conditions using MELCOR and ASTEC codes |
| Overall Q/A | ||
| Seminar Day 1 closes |
DAY 2 – Tuesday, October 19th 2021
| 13:00 – 13:40 | General Session | Keynote addresses Chairs: L. E. Herranz, A. Bentaib |
| RCCS-2021-1040 | Chenwei HE (CNPRI, China) | Long term management strategies of containment pressure control during severe accidents |
| RCCS-2021-1050 | Randy Bunt (Southern Nuclear, USA) | Reactor core and containment cooling issues in DBA and SA differences – BWR |
| 13:40 – 13:50 | Break | |
| 13:50 – 15:10 | Topic 2 | New systems and designs Chairs: L. Kubisova, M. Shawkat, T. Van Rompuy |
| RCCS-2021-1160 | R. Park, S. Kim (KAERI, South Korea) | Development of severe accident mitigation system and technology for Korean small integral reactor |
| RCCS-2021-1170 | P. Matejovic, M. Barnak, Z. Tuma (Dukovany NPP, Czech Republic) | VVER-440/V213 containment cooling system for severe accidents |
| RCCS-2021-1180 | G. Lajtha, E. Toth, L. Tarczal, T. Siklossy (NUBIKI, Hungary) | Challenges in the Design of Long Term Containment Cooling System at Paks NPP |
| RCCS-2021-1190 | M. Hupp, M. Braun, N. Losch (Framatome, Germany) | Fully passive long term containment cooling of VVER440-V213 reactors |
| RCCS-2021-1200 | A. K. Deo, R. S. Rao, A. J. Gaikwad, L. R. Bishnoi (AERB, India) | Long Term Passive Containment Heat Removal System for a typical PHWR |
| RCCS-2021-1210 | O. Kocharyants, O. Mazurok, V. Ivanov, O. Mihaylenko (ESG, Ukraine) | Study of the additional upgrades implementation for long-term heat removal from the containment of NPP with VVER-1000 reactor |
| RCCS-2021-1220 | O. Kocharyants, O. Mazurok, V. Ivanov, O. Mihaylenko (ESG, Ukraine) | Study of the additional upgrades implementation for long-term heat removal from the confinement of NPP with VVER-440 reactor |
| RCCS-2021-1290 | E. Kostov, A. Pérez-Salado Kamps, C. Hartmann, D. Lauer, D. Zeniuk, H. Troselius (Westinghouse, Germany) | Qualification and Testing of a Water Turbine Driven Pump for Use in a Long-Term Containmet Cooling System |
| Overall Q/A | ||
| 15:10 – 15:20 | Break | |
| 15:20 – 16:30 | Topic 3 | Sump clogging issues Chairs: B. Tourniaire, I. Vicena |
| RCCS-2021-1290 | G. Repetto, B. Migot, V. Soltesz (IRSN, France, VUEZ, Slovakia) | VIKTORIA experiments on sump filtration during Loss of Coolant Accident |
| RCCS-2021-1300 | J. F. Trigeol. E. Pariaud, E. Dixneuf, A. Duprat, G. Repetto (IRSN, France) | Lifetime extension of 900MWe NPPs: French TSO main conclusions regarding long term sump performance after a loss of coolant accident |
| RCCS-2021-1320 | G. Cenerino, L. Cantrel, V. Soltesz (IRSN, France, VUEZ, Slovakia) | Lifetime extension of French 900 MWe NPPs: French TSO main conclusions regarding long term sump performance during a severe accident |
| RCCS-2021-1330 | A. Bersano, G.Agnello, F. D´Auria, E. Zio, F. Mascari (ENEA, Italy) | REPAS application on sump clogging issue in long term core cooling |
| RCCS-2021-1310 | C. Alvarez, W. Le Saux, M. Pradier, L. Bosland, L. Cantrel, M. O. Simonot (IRSN, France) | Analytical tests to study potential chemical effects on sump clogging |
| Overall Q/A | ||
| 16:30 | Seminar Day 2 closes |
DAY 3 – Wednesday, October 20th 2021
| 13:00 – 13:40 | General Session | Keynote Addresses Chairs: L. E. Herranz, A. Bentaib |
| RCCS-2021-1060 | H. Esmaili (US-NRC, USA) | Post-Fukushima Severe Accident Research Activities at NRC – Containment Vents and Hydrogen Control |
| RCCS-2021-1070 | S. Mizokami (TEPCO, Japan) | Lessons learned from 1F accident by focusing on the long term cooling |
| 13:40 – 13:50 | Break | |
| 13:50 – 15:00 | Topic 4 | Debris formation and chemical conditions in cooling water Chairs: D. Jacquemain, S. Bechta |
| RCCS-2021-1230 | W. Kikuchi, A. Hotta, A. Morita (NRA, Japan) | Extension of molten jet breakup evaluation code JBREAK by improving droplet agglomeration model and validation based on DEFOR-A test |
| RCCS-2021-1240 | A. Hotta, W. Kikuchi (NRA, Japan) | Extension of debris bed cooling evaluation code DPCOOL for evaluating uncertainties in long-term debris coolability |
| RCCS-2021-1250 | N. L. Kharitonova, S. A. Gurbanova (SEC – NRS, Russia) | Assessment of Boric Acid Compounds Solubility at VVER’s Primary Coolant Conditions |
| RCCS-2021-1260 | T. Matsumoto, Y. Iwasawa, T. Sugiyama (JAEA, Japan) | Development of evaluation framework for ex-vessel core coolability |
| RCCS-2021-1270 | F. Forgues, J. Spencer (CNL, Canada) | Simulation of Potential Ex-Vessel Corium Behaviour during a CANDU Reactor Severe Accident using MELTSPREAD and CORQUENCH Codes |
| RCCS-2021-1280 | R. Nagaishi, T. Ito, R. Kuwano (JAEA, Japan) | Radiation-chemical consideration of effect of seawater for cooling reactor cores at severe accident on structural material corrosion |
| Overall Q/A | ||
| 15:00 – 16:00 | Closing Remarks provided by the sessions Chairs |
