Joint ICTP-IAEA 3rd Course on Scientific Novelties in the Phenomenology of Severe Accidents in Water Cooled Reactors

Administration

Description

An ICTP-IAEA Virtual Meeting

The course programme covers scientific topics of direct relevance to the physical, chemical and radiological phenomena occurring during progression of severe accidents in Water Cooled Reactors, including an overview of past events and advanced technologies designed to cope with such events.

The course aims at building a comprehensive understanding of the complex phenomena associated with progression of severe accidents in WCRs and their consequences. Knowledge transfer will be facilitated between the international expert lecturers and the young nuclear professional and engineer participants through online discussions aiming at a comprehensive understanding of the physical, chemical and radiological phenomena specific to severe accidents in WCRs. Relevant nuclear safety principles, recent advancements in scientific methods, approaches and simulation tools to assess the interrelated phenomena during different phases of severe accident progression, and the role of technologies designed to prevent progression of, and mitigate consequences from, such accidents in WCRs will be presented.

Introduction:

Physics of Water Cooled Power Reactors
Nuclear Safety and IAEA Safety Standards for Water Cooled Power Reactors

Phenomenology in Severe Accident Progression:

Nuclear Fuel Degradation
Relocation of Melted Fuel
In-Vessel Melt Retention
Reactor Vessel Failure Mechanisms
Ex-Vessel Corium Cooling
Early-Phase Containment Failure
Late-Phase Containment Failure
Physics and Chemistry of Source Term
Fission Products Behaviour and Transport
Hydrogen Generation, Transport and Explosion
Numerical Simulations of Severe Accident Phenomena

Phenomenology of Technological Challenges in Propagation of Severe Accidents and Mitigation of their Consequences:

Containment Pressure Venting
Prevention of Hydrogen Explosions
Severe Accident Management

Registration: There is no registration fee.

Material

Poster Time Zones

Joint ICTP-IAEA 3rd Course on Scientific Novelties in the Phenomenology of Severe Accidents in Water Cooled Reactors | (smr 3571)

Go to day

Monday, 26 April 2021

10:00 - 10:45 Opening Remarks

Introduction of participants
Introduction to course scope and expectations

Conveners:

Nadia BINGGELI (ICTP, Italy), Alexei MIASSOEDOV (IAEA, Austria), Simone MASSARA (IAEA, Austria)

10:45 - 11:30
- 10:45 Assessment quiz 45'
  
  Speaker: Alexei MIASSOEDOV (IAEA, Austria)
11:30 - 14:30 Background
- 11:30 1. Fundamentals of Water Cooled Reactors 45'
  
  Speaker: Alexei MIASSOEDOV (IAEA, Austria)
- 12:15 Break 15'
- 12:30 2. Nuclear Safety of Water Cooled Reactors 45'
  
  Speaker: Simone MASSARA (IAEA, Austria)
- 13:15 3. Introduction to IAEA Safety Standards 45'
  
  Speaker: Simone MASSARA (IAEA, Austria)
- 14:00 Discussion of topics presented on day 1 30'

Tuesday, 27 April 2021
- 10:00 - 10:45 Background
  - 10:00 4. Progression of Fukushima Daiichi Accident and its Consequences 45'
    
    Speaker: Luis Enrique HERRANZ (Ciemat, Spain)
- 10:45 - 14:30 Phenomenology in Propagation of Severe Accidents
  - 10:45 5. Classification of Severe Accidents Phenomena into Three Levels of Scientific Knowledge: High, Medium and Low 45'
    
    Speaker: Luis Enrique HERRANZ (Ciemat, Spain)
  - 11:30 6. Nuclear Fuel Degradation; Relocation of Melted Fuel 45'
    
    Speaker: Florian FICHOT (IRSN, France)
  - 12:15 Break 15'
  - 12:30 7. Fission Product Release and Transport. Part I 45'
    
    Speaker: Luis Enrique HERRANZ (Ciemat, Spain)
  - 13:15 8. Fission Product Release and Transport. Part II 45'
    
    Speaker: Luis Enrique HERRANZ (Ciemat, Spain)
  - 14:00 Discussion of topics presented on day 2 30'
Wednesday, 28 April 2021
- 10:00 - 14:30 Phenomenology in Propagation of Severe Accidents
  - 10:00 9. Physics and Chemistry of Source Term. 45'
    
    Speaker: Luis Enrique HERRANZ (Ciemat, Spain)
  - 10:45 10. Hydrogen Generation, Transport and Explosion - Part I 45'
    
    Speaker: Ivo KLJENAK (JSI, Slovenia)
  - 11:30 11. Hydrogen Generation, Transport and Explosion - Part II 45'
    
    Speaker: Ivo KLJENAK (JSI, Slovenia)
  - 12:15 Break 15'
  - 12:30 12. In-Vessel Melt Retention and Ex-Vessel Corium Cooling 45'
    
    Speaker: Florian FICHOT (IRSN, France)
  - 13:15 13. International Activities Related to In-Vessel Melt Retention and Ex-Vessel Corium Cooling 45'
    
    Speaker: Florian FICHOT (IRSN, France), Alexei MIASSOEDOV (IAEA, Vienna), Simone MASSARA (IAEA, Vienna)
  - 14:00 Discussion of topics presented on day 3 30'
Thursday, 29 April 2021
- 10:00 - 10:45 Phenomenology in Propagation of Severe Accidents
  - 10:00 14. Numerical Simulations of Severe Accident Phenomena 45'
    
    Speaker: Florian FICHOT (IRSN, France)
- 10:45 - 11:30 Severe Accident Management Guidelines
  - 10:45 15. IAEA Safety Standards and Guidelines & 16. IAEA SAMG-D Toolkit 45'
    
    Speaker: Simone MASSARA (IAEA, Austria), Alexei MIASSOEDOV (IAEA, Austria)
- 11:30 - 14:30 Challenges in Propagation of Severe Accidents and Mitigation of their Consequences
  - 11:30 17. Reactor Vessel Failure Mechanisms; Early and Late-Phase Containment Failure 45'
    
    Speaker: Florian FICHOT (IRSN, France)
  - 12:15 Break 15'
  - 12:30 18. Fuel Coolant Interaction 45'
    
    Speaker: Pascal PILUSO (CEA, France)
  - 13:15 19. Containment Pressure Venting and Prevention of Hydrogen Explosions 45'
    
    Speaker: Walter TROMM (KIT, Germany)
  - 14:00 Discussion of topics presented on day 4 30'
Friday, 30 April 2021
- 10:00 - 11:30 Challenges in Propagation of Severe Accidents and Mitigation of their Consequences
  - 10:00 20. Emergency Preparedness and Response 45'
    
    Speaker: Walter TROMM (KIT, Germany)
  - 10:45 21. Decommissioning and Waste Management after Severe Accidents 45'
    
    Speaker: Walter TROMM (KIT, Germany)
- 11:30 - 12:45
  - 11:30 Assessment quiz 45'
    
    Speaker: Alexei MIASSOEDOV (IAEA, Austria)
  - 12:15 Feedback form 15'
    
    Speaker: Alexei MIASSOEDOV (IAEA, Austria)
  - 12:30 Closing Remarks 15'
    
    Speaker: Simone MASSARA (IAEA, Austria), Alexei MIASSOEDOV (IAEA, Austria)